Source: https://patents.google.com/patent/CN1323246C/en
Timestamp: 2020-08-08 15:54:59
Document Index: 134165121

Matched Legal Cases: ['arts 5', 'arts 3', 'arts 5', 'arts 5', 'arts 3', 'arts 3', 'art 63', 'art 63', 'art 36', 'arts 31', 'arts 33', 'art 33', 'art 33', 'art 30', 'art 33', 'art.\n18', 'arts 31', 'arts 33', 'arts 31', 'arts 32', 'arts 75', 'arts 33', 'arts 33', 'arts 31', 'arts 31', 'arts 32', 'art 5', 'art 5', 'art 7', 'art 20', 'art 20', 'art 20', 'art 20', 'art 33', 'art 30', 'art 30', 'art 33', 'art) 33', 'art 30', 'art 37', 'art 7', 'art 7', 'art 7', 'art 7', 'art 37', 'art 20', 'art 5', 'art 33', 'art 61', 'art 30', 'art 33', 'art 33', 'art 73', 'art.\n19']

CN1323246C - Start clutch device - Google Patents
Start clutch device Download PDF
CN1323246C
CN1323246C CNB028031946A CN02803194A CN1323246C CN 1323246 C CN1323246 C CN 1323246C CN B028031946 A CNB028031946 A CN B028031946A CN 02803194 A CN02803194 A CN 02803194A CN 1323246 C CN1323246 C CN 1323246C
CNB028031946A
CN1476518A (en
前田浩司
竹下仁人
福田行宏
爱信艾达工业株式会社
2001-08-14 Priority to JP246277/01 priority Critical
2001-08-14 Priority to JP246276/01 priority
2001-08-14 Priority to JP246277/2001 priority
2001-08-14 Priority to JP246276/2001 priority
2001-08-14 Priority to JP2001246276 priority
2001-08-14 Priority to JP2001246277 priority
2002-08-13 Application filed by 爱信艾达株式会社, 爱信艾达工业株式会社 filed Critical 爱信艾达株式会社
2004-02-18 Publication of CN1476518A publication Critical patent/CN1476518A/en
2007-06-27 Publication of CN1323246C publication Critical patent/CN1323246C/en
239000003921 oil Substances 0.000 claims abstract description 87
230000004308 accommodation Effects 0.000 claims description 17
239000000314 lubricants Substances 0.000 claims description 9
239000010724 circulating oil Substances 0.000 claims description 7
A clutch assembly for starting a vehicle without using a torque converter has a simple structure yet providing high reliability. In the clutch assembly (11, 12, 13), a clutch (10) and a damper device (121, 122) are housed in a housing (2) connected to a crank shaft of an engine. A boss (30) serving as an output member is connected to an input shaft (28) of an automatic transmission. An output of the engine is connected/disconnected to/from the input shaft (28) upon engagement/disengagement of the clutch (10). The clutch (10) includes a friction member (14) and a piston (20) fit oil tightly with the housing (2) so as to apply pressure to the friction member (14). One end of the damper device (121, 122) is connected to a clutch hub (16), and the other end is connected to the output member (30). The clutch (10) and the damper device (121, 122) are aligned on the axis of the housing (2).
Start clutch device
The present invention relates to a kind of start clutch device that is arranged between vehicle motor and the automatic transmission, at length say to relate to the start clutch device that constitutes by start clutch and damping device.
In general, as the start clutch device of vehicle, adopt fluid transmission means such as torque-converters and hydraulic couplers.This fluid transmission means, if even vehicle is in halted state when also continuing the explosive motor etc. of rotation of driving source, the slip of the fluid by this fluid transmission means is allowed relatively rotating between automatic transmission input shaft and the engine output shaft, to keep the rotation of driving source.Then, when vehicle start, the slip of the fluid by fluid transmission means, level and smooth starting passes to the automatic transmission input shaft with engine power.
Fluid transmission means such as this torque-converters, though utilize above-mentioned relatively rotate and slide start to walk automatically, have good starting performance owing to be large-scale plant, become a kind of obstacle for compactness, the lightweight of vehicle.In addition, owing to by the fluid transferring power, so can produce kinetic equation loss, for preventing its generation, be provided with lock-up clutch, allowing structure complicated more, is not simultaneously just to have eliminated because the kinetic equation loss that above-mentioned fluid causes like this.
Recently, many grades of changes along with automatic transmission, and the appearance of stepless speed changes devices (CVT), to by increase torque ratio such as torque-converters and the requirement of the effect that relaxes of the fluid impact when utilizing speed change become more and more littler, for the requirement of the compactness that adapts to above-mentioned automatic transmission, proposed not adopt the start clutch device of fluid.
As such start clutch device, the device described in You Te Open 2001-3955 communique etc. for example.This device, be with housing that explosive motor is connected in accommodate multi-plate clutch, damping device and overrunning clutch, when vehicle stops, be connected with multi-plate clutch by pressing pressing spring, produce given creep power, when vehicle start, utilization is based on pushing of piston from oil pressure to hydraulic chamber that supply with and with the multi-plate clutch combination, absorb to impact and transmit the driving force of motor by damping device to input shaft, and then, vehicle rollback in the time of can preventing on sloping road starting.
Above-mentioned start clutch device, in housing, dispose clutch housing that becomes outlet side and the wheel hub that becomes input side, between these housings and wheel hub, get involved a plurality of friction plates, constitute wet multi-plate clutch, and the piston of this clutch of pressing operation, between the outer wheel component of clutch housing and overrunning clutch, get involved O shape circle respectively, chimeric with the oil seal shape, further oilhole from forming at input shaft, between outer wheel component and clutch, supply with oil pressure to the hydraulic chamber between piston and clutch housing.
Therefore, above-mentioned start clutch device, in the shell that constitutes this start clutch device, the clutch housing that start clutch is used is set, therefore, hydraulic chamber also and this clutch housing between form, the counter-force of pushing of start clutch acts on the clutch housing, accommodate between the parts the axial power that produces at housing and its inner clutch housing etc., need handle the power on the above-mentioned axle direction (thrust) by thrust-bearing etc.Further, above-mentioned hydraulic chamber owing to form in clutch housing in being housed in housing and the outer wheel component, from the oil circuit of input shaft to this hydraulic chamber's oil supply and discharge pressure, needs the oilhole of 2 oil sealing clamping input shafts at least.
Promptly, the start clutch device of above-mentioned prior art, owing to dispose hydraulic chamber and start clutch in the clutch housing in being housed in housing, so the processing and the oil channel structures of the existence of this clutch housing itself, above-mentioned thrust, form complicated structure together, cause that reliability reduces.
Further, damping device, because overlapping setting on the diametric(al) outer circumferential side of multi-plate clutch, so increased the size of start clutch device on diametric(al).Particularly, in order to improve the performance of damping device, if on diametric(al) the dual spring that this damping device is set, then further increase the size on the diametric(al) of start clutch, cause the lift-launch deterioration of vehicle.
For this reason, the 1st purpose of the present invention be to provide a kind of do not adopt fluid transmission means such as torque-converters can carry out the starting of vehicle and have not need the clutch housing in housing in configuration hydraulic chamber and start clutch structure simple structure, can improve reliability, can solve the start clutch device of above-mentioned problem like this.
Further, the 2nd purpose of the present invention is to provide a kind of compact dimensionsization of start clutch on diametric(al), start clutch device of the vehicle boarded property of raising of can allowing.
The present invention's 1 start clutch device is clutch 10 and the damping device 12 that wraps in having in the housing 2 that is connected with the motor output block 1, 12 2, with the input shaft 28 that is connected automatic transmission on output block 30, by connecing the start clutch device 1 that motor output and the input shaft 28 of above-mentioned automatic transmission is connected or cuts off from above-mentioned clutch 10 1, 1 2, 1 3, it is characterized in that,
Above-mentioned clutch 10, have and be located at spline 15 chimeric the 1st friction member the 14, the 2nd friction members 13 that form on the above-mentioned housing 2, support the 2nd friction member 13, the interlocking of oil seal shape is in above-mentioned housing 2 and push the piston 20 of the 1st and the 2nd friction member and be formed on hydraulic chamber 23 between above-mentioned piston 20 and the above-mentioned housing 2
Above-mentioned damping device 12 1, 12 2, the one end is connected on the clutch hub 16 and the other end is connected on the above-mentioned output block 30, and with the configuration side by side on axle direction of above-mentioned clutch 10.
1 start clutch device according to the present invention, owing to do not use torque-converters T/C, by allowing clutch connect on the input shaft that motor output is connected automatic transmission and can making vehicle start, the slip between the I/O when not using torque-converters can improve transmission efficiency.Further, by rabbeting the piston oil sealing shape ground of clutch in housing and independently hydraulic chamber being set, can be from the leakage of oil in housing of this hydraulic chamber, can improve the controlled of clutch, simultaneously, not need by the start clutch that constitutes with the housing separated components with and the clutch casing used of oil sector etc., can obtain simple structure, therefore, can obtain high reliability.And, because damping device and clutch on axle direction and row arrangement, so the allocation position of damping spring freely can be set, like this, have increased the design freedom in damping device on the diametric(al) of damping device.
The present invention's 2 start clutch device, be in the present invention's 1 described start clutch device, it is characterized in that the hydraulic chamber 23 that will form is configured at interior all sides and this friction member 14,13 of the above-mentioned the 1st and the 2nd friction member 14,13 overlapping on axle direction between above-mentioned piston 20 and above-mentioned housing 2.
2 start clutch device according to the present invention, by configuration side by side on axle direction with clutch and damping device, though the length of meeting extensional shell on axle direction, but by allowing hydraulic chamber and friction member overlapping setting the on axle direction, can inferior limit suppress the prolongation of length on the axle direction of housing.
The present invention's 3 start clutch device, be in the present invention's 1 described start clutch device, it is characterized in that, above-mentioned housing 2, have the joint 55 that is connected on the above-mentioned motor output block, fix the 1st housing parts 5 on this joint 55 and be connected the 2nd housing parts 3,6,7 on the 1st housing parts 5
Above-mentioned the 1st friction member 14. and interlocking on the spline 15 that forms on above-mentioned the 1st housing parts 5.
3 start clutch device according to the present invention, owing on the 1st housing parts, friction member is set, so, therefore can easily guarantee the intensity of the housing that constitutes by a plurality of parts between the 1st housing and the 2nd housing parts, for example do not carry out the transmission of engine output torque on the connecting part in welding etc.
The present invention's 4 start clutch device, be in the present invention's 3 described start clutch devices, above-mentioned piston 20, the interlocking of oil seal shape is on above-mentioned the 2nd housing parts 3,6,7, when carrying out the oil pressure supply, push the above-mentioned the 1st and the 2nd friction member 14,13 to the hydraulic chamber 23 that between above-mentioned piston 20 and above-mentioned the 2nd housing parts 3,6,7, forms.
4 start clutch device according to the present invention owing to the connecting part between the 1st housing parts and the 2nd housing parts is not formed in the hydraulic chamber, so even in this hydraulic chamber the high oil pressure of effect, also can prevent leakage of oil at this moment reliably.
The present invention's 5 start clutch device is in the present invention's 1 described start clutch device, above-mentioned damping device 12 1, 12 2, comprise driver plate 31, follower plate 33, at the 2nd spring 34 of the 1st spring 35 from above-mentioned driver plate 31 to effect the above-mentioned follower plate 33, maintenance regulation distance of swimming effect between above-mentioned driver plate 31 and above-mentioned follower plate 33,
Above-mentioned driver plate 31 is connected with above-mentioned clutch hub 16, and above-mentioned follower plate 33 is connected with above-mentioned output block 30.
5 start clutch device according to the present invention, in order to set shock absorbing characteristics, even the 1st and the 2nd spring is set, but since clutch and damping device on axle direction, be arranged side by side, so also can prevent the start clutch device ever-larger diameters.
The present invention's 6 start clutch device is in the present invention's 5 described start clutch devices, above-mentioned damping device 12 1, 12 2Further comprise intermediate plate 32,
Above-mentioned the 1st spring 35, from above-mentioned driver plate 31 to the above-mentioned intermediate plate 32 and from above-mentioned intermediate plate 32 to series connection effect the above-mentioned follower plate 33.
6 start clutch device according to the present invention, owing to can set the damping stroke by the 1st spring and the 2nd spring, pass to follower plate with acting on after impact force on the driver plate is absorbed by this long stroke, thus can absorb well clutch in conjunction with the time and the moment change that produces by motor.
The present invention's 7 start clutch device is in the present invention's 6 described start clutch devices, above-mentioned the 1st spring 35 is configured in the radially inner side of above-mentioned the 2nd spring 34.
7 start clutch device according to the present invention, spring only shrinks equal length, internal side diameter one can be to obtain the principle of big rotation angle even utilize, be arranged on internal side diameter by the 1st spring that will need to set long stroke, compare with the situation that the 1st spring is arranged on outside diameter, can set longer stroke.
The present invention's 8 start clutch device is in the present invention's 1 described start clutch device, on the inner peripheral surface of above-mentioned output block 30, is connected with input shaft 28 splines of speed changer,
On this input shaft 28, keep being rabbeted by quill 41 behind the 1st space a, and the interlocking of this quill 41 oil seal shapes is on above-mentioned output block 30,
On the outside diameter of above-mentioned quill 41, keep the 2nd space b, will constitute the hub portion 7 of above-mentioned housing 2, be supported on the mission case 45 of above-mentioned speed changer free to rotate and oil seal shape,
The the above-mentioned the 1st and the 2nd space a, b form the lubricant oil circulating oil path in the above-mentioned housing 2.
8 start clutch device according to the present invention, in the start clutch device that does not comprise overrunning clutch, owing to utilize the space of the internal side diameter and the outside diameter of quill, the lubricant oil circulating oil path of formation to being lubricated in the housing, so the start clutch that can be in housing and the component parts supplying lubricating oil of damping device, particularly the slide relative rotatable parts supplying lubricating oil in the damping device stroke reliably can improve support accuracy and serviceability.
The present invention's 9 start clutch device is in the present invention's 1 described start clutch device, forms recess 30g on a side of above-mentioned output block 30, and is fixed on outer race 61 on this output block in this recess and loads overrunning clutch 60,
On the inner race 63 of above-mentioned overrunning clutch, form sleeve part 63a,
On the inner peripheral surface of above-mentioned output block 30, carry out spline with the input shaft 28 of speed changer and combine 30e, 28b,
On this input shaft, keep the 1st space a and rabbeted by quill 41, the sleeve part 63a of the above-mentioned inner race of interlocking on this quill simultaneously, and carry out spline in conjunction with 63b, 41b,
On the outside diameter of above-mentioned quill 41 and sleeve part 36a, keep the 2nd space b, will constitute the hub portion 7 of above-mentioned housing 2, be supported on the mission case 45 of above-mentioned speed changer free to rotate and oil seal shape,
Form intercommunicating pore 41c on the fore-end of above-mentioned quill 41, the above-mentioned the 1st and the 2nd space a, b form the lubricant oil circulating oil path in the above-mentioned housing 2.
9 start clutch device according to the present invention is in comprising the start clutch device of overrunning clutch.The supporting surface supplying lubricating oil of accommodating parts, particularly connecting plate or transmission part in housing can improve support accuracy and serviceability equally reliably.
The present invention's 10 start clutch device.Be in the present invention's 1 described start clutch device, above-mentioned housing 2 comprise side face 3c and with the cylindrical portion 5b and the hub portion 3b of this side face one,
The spline 15 that in above-mentioned cylindrical portion, is provided with on all sides and on the spline 16a that forms on the outer circumferential face of clutch hub 16, combine with external friction plate 14 that becomes above-mentioned the 1st friction member and the interior friction plate 13 that becomes above-mentioned the 2nd friction member respectively, the above-mentioned clutch 10 that formation is made of wet multi-plate clutch
In the side face 3c and the hydraulic chamber 23 between the piston 20 of above-mentioned housing, be communicated with the oil circuit 29a, the 29b that on above-mentioned hub portion 3b, form,
By the above-mentioned clutch 10 of above-mentioned piston 20 pressing operations, and directly support by above-mentioned housing 2 and to push the clutch counter-force that forms by this.
In addition, above-mentioned cylindrical portion and hub portion, be not limited to mode integrally formed on housing, also comprise by welding etc. on housing, being wholely set cylindrical portion (clutch drum) and/or hub portion, the mode of above-mentioned spline is set on the inner peripheral surface of this clutch drum.
10 start clutch devices according to the present invention, not need by the clutch that constitutes with the housing separated components with and the clutch housing used of oil sector etc., make structure become simple, and by the formed counter-force of pushing of start clutch, act on side face that constitutes hydraulic chamber and the cylindrical portion that hardens and close with external friction respectively in the opposite direction, and absorb by housing itself, therefore do not need to be provided with the thrust-bearing of bearing above-mentioned clutch counter-force etc., make structure simpler.Further, supply with oil pressure or from its discharge, so oil channel structures also becomes simply, these combine to above-mentioned hydraulic chamber by the oil circuit that on the hub portion of housing, forms, can implementation structure simply, compactness and lightweight, and can improve reliability.
The present invention's 11 start clutch devices are in the present invention's 10 described start clutch devices, and above-mentioned cylindrical portion is the middle cylindrical portion 5b that forms on the diametric intermediate portion of the front side of above-mentioned housing 2,
Above-mentioned side face 3c, by be configured in above-mentioned in the middle of the flat-shaped part of internal side diameter of cylindrical portion 5b constitute,
In the major diameter accommodation section A that rear side 6,5c, 5d by above-mentioned housing 2 form, accommodate above-mentioned damping device 1 1, 1 2, simultaneously above-mentioned clutch 10 of configuration and the oil sector 11 that constitutes by above-mentioned piston 20 and hydraulic chamber 23 among the minor diameter accommodation section B that the internal side diameter of cylindrical portion 5b forms in the middle of above-mentioned in the front side 3 of above-mentioned housing 2,5a, 5b.
11 start clutch devices according to the present invention, owing in the major diameter accommodation section of the rear side of housing, accommodate damping device, and internal side diameter configuration start clutch and this start clutch oil sector in the middle cylindrical portion in housing the place ahead, so adopt large diameter damping device can high efficiency to absorb the impact of the connection of following start clutch, slyness is carried out the transmission to input shaft, and can on the outside diameter of middle cylindrical portion, the space be set, can dispose on this space segment increases the weight portion that flywheel effect is used, and perhaps can dispose the motor generator of hybrid vehicle usefulness (comprising the idling limit stoper) etc.
The present invention's 12 start clutch device is that fixed dam 25 on the hub portion 3b of above-mentioned housing 2 in the present invention's 10 described start clutch devices, shrinks backspring 26 is set between the back side of this baffle plate 25 and above-mentioned piston 20.
12 start clutch device according to the present invention, because fixed dam on the hub portion of housing, between this baffle plate and the piston back side, shrink backspring is set, so the counter-force that is formed by backspring also can be absorbed by housing itself, do not need to carry out the processing of thrust power of forming by this counter-force etc., can allow simple in structure and can improve reliability.
The present invention's 13 start clutch device is in the present invention's 10 described start clutch devices, with the above-mentioned spline 15 that the external friction plate 14 of above-mentioned start clutch 10 combines, is formed directly on the cylindrical portion 5b inner peripheral surface of above-mentioned housing 2.
13 start clutch device according to the present invention because the external friction plate is formed directly on the cylindrical part inner peripheral surface of housing with spline, so do not need special-purpose clutch drum, therefore, can be realized compactness and lightweight.
The present invention's 14 start clutch device is in the present invention's 10 described start clutch devices, forms recess 3d on the end face of the hub portion 3b of above-mentioned housing 2, the input shaft 28 of oil seal shape 27 ground interlocking speed changer in this recess,
On above-mentioned input shaft, be formed on the oilhole 28a that extends on the axle direction, the open-ended of this oilhole is communicated with the oil circuit 29a, the 29b that form on above-mentioned hub portion 3b.
14 start clutch device according to the present invention, because the oil circuit of the open-ended and hub portion of the oilhole that will form on input shaft is communicated with, so only need the sealed members such as O shape circle of this oil circuit formation usefulness of 1 intervention between hub portion and input shaft just enough, need the prior art of sealed member to compare with two sides about oil circuit, can reduce sealed member, reduce cost and improve the reliability of oil channel structures.
The present invention's 15 start clutch device is in the present invention's 10 described start clutch devices, and above-mentioned piston 20 has the operation unit 20c that extends and operate above-mentioned start clutch to the external diameter direction,
This operation unit 20c 2, when discharging, above-mentioned start clutch 10 keeps off connecing with above-mentioned housing inner face, and the periphery 20c of this operation unit 1Combine with the spline 15 of all sides in the above-mentioned cylindrical portion.
15 start clutch device according to the present invention, owing to the state of piston retraction, be that operation unit taps into row with housing inner face retaining and locatees, so when supplying with oil pressure to hydraulic chamber and begin, the whole area of piston becomes bearing area, can allow the mobile beginning of piston fast.In addition, because the outer circumferential face of plunger operating portion combines with spline with cylindric inner peripheral surface, realize backstop on every side, so do not need special-purpose backstop on every side, it is simple that structure becomes.
The present invention's 16 start clutch device, be in the present invention's 1 described start clutch device, above-mentioned clutch 10, comprise spline with above-mentioned housing 2 unitary rotation is 15 that combine, become above-mentioned the 1st friction member external friction plate 14 and with the mutual configuration of this external friction plate and with the spline 16a interior friction plate 13 that combine, that become above-mentioned the 2nd friction member that on clutch hub 16, forms
Above-mentioned damping device 121,122 comprises back flow side parts 31 or 33,32, slave end parts 33 or 32 and get involved in from the spring 34,35 of above-mentioned back flow side parts to the power transfer path of slave end parts,
Further comprise the boss 30 that is connected with above-mentioned slave end parts and becomes above-mentioned output block and the input block 36 or the 16b that constitute and be connected with above-mentioned clutch hub one with above-mentioned back flow side parts,
On the outer circumferential face 30a of above-mentioned boss, on sense of rotation, can be free to slide and be limited in the inner peripheral surface that axle direction directly supports above-mentioned input block movably.
In addition, above-mentioned back flow side parts, be meant the parts that become back flow side with respect to the slave end parts that are connected with the boss that becomes output block, therefore for the device that has only driver plate with respect to follower plate, certainly be meant driver plate, but for the device that carries out multistage absorption impact from driver plate by (1 or a plurality of) intermediate plate, not only comprise driver plate, and comprise above-mentioned intermediate plate.
16 start clutch device according to the present invention, because the clutch hub of start clutch device and the back flow side parts of damping device are connected with input block, make damping device can adopt the high device of the big absorption efficiency of stroke, and input block is limited and is directly supported by the outer circumferential face of the boss that becomes output block on axle direction, so can adopt the simple structure that stays out of packing ring or bearing etc. that above-mentioned input block is supported, can realize compactness and lightweight.Simultaneously because the input block and the above-mentioned boss that constitute with the clutch hub one, unitary rotation outside the damping stroke (route) of damping device, therefore both slide relative are just in the extremely short time, and the most of the time of normal rotation is a unitary rotation, can prevent that premature wear etc. from causing the situation of the reduction of support accuracy, can obtain sufficient serviceability and reliability.
The present invention's 17 start clutch device is that above-mentioned input block 36 or 16b have hub portion 36b cylindraceous, 16c on the side face within it in the present invention's 16 described start clutch devices,
Above-mentioned boss 30, comprise the supporting portion 30a cylindraceous that supports above-mentioned hub portion, the bump 30b or the 30g that on axle direction one end, protrude of this supporting portion to the external diameter direction, and the limiting part 33a, 75,76 that is provided with on the other end on the axle direction of this supporting portion 30a that restrictive axes direction at least moves and protrudes to the external diameter direction of this supporting portion
Above-mentioned input block 36 or 16b, by being supported on the supporting portion 30a of above-mentioned boss 30 with being free to slide, and by above-mentioned bump 30b or 30g and limiting part 33a, 75,76 clampings, moving on the restrictive axes direction.
17 start clutch device according to the present invention, because input block is supported on the supporting portion of boss by hub portion cylindraceous, support with bigger area, and its two ends are by being limited at bump that forms on the boss and the limiting part that is provided with on this boss, prevention moving on axle direction, so input block can prevent from etc. and is stabilized support.Further, above-mentioned boss, even an end and bump are integrally formed, also since the other end can take out from boss by limiting part, so the hub portion of input block can be easily and highi degree of accuracy supported, carry out I﹠M easily.
The present invention's 18 start clutch device, be in the present invention's 17 described start clutch devices, the bump 30b or the 30g of above-mentioned boss 30, be lip part 30a integrally formed on above-mentioned supporting portion cylindraceous, and above-mentioned limiting part is the extension part 33a that is fixed on the slave end parts on the above-mentioned boss part.
18 start clutch device according to the present invention, because boss forms lip part on an end of supporting portion, and on the other end the fixing extension part of slave end parts, by moving on these lip parts and the extension part restrictive axes direction, so do not need for supporting the special-purpose member of input block, make simple in structurely, and, can obtain high support accuracy by lip part that on boss, directly forms and the extension part of directly fixing.
The present invention's 19 start clutch device, be in the present invention's 18 described start clutch devices, above-mentioned input block 36 or 16b be fixing above-mentioned clutch hub 16, to diametric(al) extend and be connected with above-mentioned back flow side parts 31 in its outer radius portion, the while within it footpath portion form the connecting plate 36 of above-mentioned hub portion 36b.
19 start clutch device according to the present invention, owing to adopt connecting plate that the back flow side parts of damping device are connected with clutch hub, this connecting plate is supported by above-mentioned boss, so damping device can be from the input of its outside diameter and use under the common usage mode of internal side diameter output, and can make this connecting plate have sufficient serviceability to support this connecting plate reliably.
The present invention's 20 start clutch device is in the present invention's 17 described start clutch devices, and above-mentioned slave end parts 33 are made of 2 follower plates 33 of above-mentioned back flow side parts 31,32 of clamping and above-mentioned spring 34,35,
At least one side of these 2 follower plates is fixed on the above-mentioned boss 30,
With the outer circumferential face of the annulus 37 of above-mentioned boss one, 61a on, can support the inner peripheral surface of above-mentioned back flow side parts 32 with being free to slide.
In addition, above-mentioned annulus, for example as shown in Figure 1, being not limited to only is ring portion, for example also comprises as shown in Figure 2, is also included within the part of other functional part that forms on the outer race of overrunning clutch.
20 start clutch device according to the present invention, damping device, because its back flow side parts directly are supported on the annulus with above-mentioned boss one, the support of damping device becomes simple structure, can realize compactness and lightweight, and the time compole that slide relative is rotated is short, can obtain sufficient serviceability and reliability.
The present invention's 21 start clutch device is in the present invention's 20 described start clutch devices, above-mentioned damping device 12 1, 12 2Comprise driver plate 31 or 33, intermediate plate 32, follower plate 33 or 31, from above-mentioned driver plate to the intermediate plate and the 1st spring 35 from above-mentioned intermediate plate to series connection effect the above-mentioned follower plate and between above-mentioned driver plate and above-mentioned follower plate, keep the 2nd spring 34 of regulation distance of swimming effect
Above-mentioned driver plate 31 or 33 constitutes the above-mentioned back flow side parts that are connected with above-mentioned input block 36 or 16b, and above-mentioned intermediate plate 32 constitutes the above-mentioned back flow side parts that supported by above-mentioned annulus 37,61a, 30g.
21 start clutch device according to the present invention, damping device adopts intermediate plate, can obtain the long stroke (route) that the series connection effect by the 1st spring forms, and from the way of above-mentioned stroke, change the absorption load by the 2nd spring, can be effectively and slick and sly the absorption because the moment that the is connected to form change of start clutch can slyness start to walk.
The present invention's 22 start clutch device, be in the present invention's 21 described start clutch devices, above-mentioned annulus 61a is on the outer race 61 of the overrunning clutch 60 in being configured in the recess 30g of above-mentioned boss 30, protrudes formed parts to the external diameter direction.
22 start clutch device according to the present invention is got involved overrunning clutch, can prevent the landing on ramp when vehicle stops.
The present invention's 23 start clutch device, be in the present invention's 17 described start clutch devices, the bump 30k of above-mentioned boss 30, be the joint 30j with the integrally formed above-mentioned slave end parts of this boss, and above-mentioned limiting part is the anticreep parts 75,76 that stopped by above-mentioned supporting portion.
23 start clutch device according to the present invention, because boss moves by being limited axle direction with anticreep parts such as the joint of the integrally formed driven member of boss and snap rings, so can install easily by the parts of boss supporting portion support with the clutch hub one.
The present invention's 24 start clutch device, be in the present invention's 23 described start clutch devices, above-mentioned input block and above-mentioned clutch hub be 16 integrally formed, be connected and form the clutch hub one body component 16b of above-mentioned hub portion 16c with above-mentioned back flow side parts 33 at inside diameter.
24 start clutch device according to the present invention, because input block is clutch hub one body component integrally formed with clutch, and its internal side diameter is connected on the back flow side parts, so can make the linkage structure of start clutch and damping device simple, dwindle the size on axle direction.
The present invention's 25 start clutch device is in the present invention's 24 described start clutch devices, above-mentioned back flow side parts 33, and 2 driver plates 33 that are made of above-mentioned slave end parts 31 of clamping and spring 34,35 constitute,
The driver plate of above-mentioned clutch hub 16 sides in these 2 driver plates is fixed on the above-mentioned clutch hub one body component 16b,
Also be included in the upwardly extending connecting plate 73 that is used to connect above-mentioned slave end parts 31 and above-mentioned boss 30 in footpath side,
With the outer circumferential face 30g of the annulus 30f of above-mentioned boss 30 one on, can support the inner peripheral surface of above-mentioned back flow side parts 32 with being free to slide.
25 start clutch device according to the present invention, damping device, because its back flow side parts are directly supported by the annulus with above-mentioned boss one, so the support of damping device also becomes simple structure, can realize compactness and lightweight, and the time compole that slide relative is rotated is short, can obtain sufficient serviceability and reliability.
The present invention's 26 start clutch device is in the present invention's 25 described start clutch devices, above-mentioned damping device 12 1, 12 2Comprise driver plate 31 or 33, intermediate plate 32, follower plate 33 or 31, from above-mentioned driver plate to the intermediate plate and the 1st spring 35 from above-mentioned intermediate plate to series connection effect the follower plate and between above-mentioned driver plate and above-mentioned follower plate, keep the 2nd spring 34 of regulation distance of swimming effect
26 start clutch device according to the present invention, damping device adopts intermediate plate can obtain the long stroke (route) that the series connection effect by the 1st spring forms, and from the way of above-mentioned stroke, change the absorption load by the 2nd spring, can be effectively and slick and sly the absorption because the moment that the is connected to form change of start clutch can slyness start to walk.
The present invention's 27 start clutch device, be in the present invention's 26 described start clutch devices, above-mentioned annulus 61a is on the outer race 61 of the overrunning clutch 60 in being configured in the recess 30g of above-mentioned boss 30, protrudes formed parts to the external diameter direction.
27 start clutch device according to the present invention is got involved overrunning clutch, can prevent the landing on ramp when vehicle stops.
The present invention's 28 start clutch device is in the present invention's 16 described start clutch devices, and above-mentioned housing 2 has major diameter accommodation section A on one side's side, and has minor diameter accommodation section B in its opposing party's side,
In above-mentioned major diameter accommodation section A, accommodate above-mentioned damping device 12 1, 12 2And above-mentioned input block 36,16b, in above-mentioned minor diameter accommodation section B, dispose above-mentioned start clutch 10 and oil sector 11 thereof.
28 start clutch device according to the present invention owing to accommodate damping device in the major diameter accommodation section of housing, therefore can adopt the high performance damping device of major diameter, can high efficiency absorbs the impact of the connection of following start clutch.In addition, because configuration start clutch and mechanism thereof in the minor diameter accommodation section of housing, can on the outside diameter of this minor diameter accommodation section, the space be set, can dispose on this space segment increases the weight portion that flywheel effect is used, and perhaps can dispose the motor generator of hybrid vehicle usefulness (comprising the idling limit stoper) etc.
The present invention's 29 start clutch device is clutch 10 and the damping device 12 that wraps in having in the housing 2 that is connected on the motor output block 1, 12 2, and be connected on the input shaft 28 of automatic transmission and directly motor exported the start clutch device 1 of start control device that passes to automatic transmission, allows vehicle start at the output block 30 of housing 2 its both sides of upper support with by combine with above-mentioned clutch 10 by bearing 39,40 1, 1 2, 1 3,
Above-mentioned damping device 12 1, 12 2Comprise driver plate 31 on the output block 16 that is connected above-mentioned clutch, be connected the follower plate 33 of above-mentioned output block, at the 2nd spring 34 of the 1st spring 35 from above-mentioned driver plate 31 to effect the above-mentioned follower plate 33 and maintenance regulation distance of swimming effect between above-mentioned driver plate 31 and above-mentioned follower plate 33, and above-mentioned the 1st spring 35 is configured in the radially inner side of above-mentioned the 2nd spring 34
The the above-mentioned the 1st and the 2nd spring 35,34 is at diametric(al) above-mentioned damping device 12 arranged side by side 1, 12 2, with the configuration side by side on axle direction of above-mentioned clutch 10.
29 start clutch device according to the present invention, in order to set shock absorbing characteristics, even the 1st and the 2nd spring is set, but since clutch and damping device on axle direction, be arranged side by side, therefore can prevent the start clutch device ever-larger diameters, improve vehicle boarded property.
In addition, the symbol in the above-mentioned bracket is the symbol that is used for the accompanying drawing contrast, and this is only for convenience to inventing easy understanding, does not produce any influence for the formation of the scope that the present invention put down in writing.
Fig. 1 is that expression is suitable for the sectional view that does not comprise the start clutch device of overrunning clutch of the present invention.
Fig. 2 is that expression is suitable for the sectional view that comprises the start clutch device of overrunning clutch of the present invention.
Fig. 3 is the plan view of expression damping device partly cut-away.
Fig. 4 is that expression is of the present invention, the sectional view of part start clutch device after changing.
Below according to the description of drawings embodiments of the invention.Fig. 1 represents not comprise the start clutch device of overrunning clutch, Fig. 2 represents to comprise the start clutch device of overrunning clutch, Fig. 4 represents the opposite start clutch device that uses of the input/output relation of damping device, the right is connected with explosive motor such as petrol engine among the figure, the left side and CVT (continuously variable transmission), advance 6 grades, retreat multidrive iso-variable velocity device such as 1 grade and be connected.Start clutch device of the present invention comprises by cooperating the output with motor to pass to the start control device that automatic transmission makes vehicle start with start clutch 10 described later.
Start clutch device 11 as shown in Figure 1, has the housing 2 of the shell that constitutes this start clutch device 11.This housing 2 constitutes by intermediate member 3, protecgulum 5, bonnet 6 and rear-wheel hub 7 one are fixed.J1 among the figure represents for example weld part between intermediate member 3 and the protecgulum 5, and j2 represents for example weld part between protecgulum 5 and the bonnet 6, and j3 represents for example weld part between bonnet 6 and the rear-wheel hub 7.In addition, constitute the 1st housing parts, and constitute the 2nd housing parts by intermediate member 3, bonnet 6 and rear-wheel hub 7 by protecgulum 5.
Intermediate member 3 has bump 3a, wheel hub 3b and planar plectane portion (front face) 3c that to external diameter direction extend of interlocking on not shown engine crankshaft (motor output block).In addition, protecgulum 5 is by the front face 5a on the outer circumferential face that is welded on the above-mentioned plectane 3c of portion, the middle cylindrical portion 5b that becomes 90 degree and axially extend with this front face general curved, with the riser portions 5c that rise to the external diameter direction with 90 degree roughly from the rear end of this cylindrical portion, and in this riser portions periphery upper edge roughly the peripheral part 5d that extends of axle direction constitute.Bonnet 6 has on the end of the peripheral part 5d that is welded on above-mentioned protecgulum, forms the facial 6a of rear side of wrist shape.Rear-wheel hub 7, have on the inner peripheral surface that is welded on the facial 6a of this rear side the 7a of plectane portion and in this plectane portion week crooked 90 degree, the cylindrical part 7b that extends at axle direction.In addition, middle cylindrical portion 5b also can be used as the parts with preceding cover split-type, connects by being welded on the first-class Placement of protecgulum.
In above-mentioned housing 2, accommodate start clutch 10 and damping device 121 (interior bag).Start clutch 10 comprises that a plurality of clutch plates (the 1st friction means) 14 and clutch disk (the 2nd friction means) 13 are submitted interworking at axle direction puts the wet multi-plate clutch of formation and the oil sector 11 that the clutch operating that comprises piston 20 and cylinder etc. described later is used.In addition, on the inner peripheral surface of the middle cylindrical portion 5b of above-mentioned protecgulum 5, directly form spline 15, on this spline,, prevent to extract by snap ring 14a in conjunction with the above-mentioned clutch plate 14 of external friction plate.On the other hand, the clutch hub (clutch output block) 16 of the internal side diameter of cylindrical portion 5b configuration tubular in the middle of above-mentioned, on the spline 16a that forms on the outer circumferential face of this wheel hub in conjunction with the above-mentioned clutch disk 13 of interior friction plate.In addition, the foregoing description though be directly to form spline 15 on the inner peripheral surface of above-mentioned middle cylindrical portion 5b, directly form clutch drum and constitutes like that on protecgulum, but also can adopt the clutch drum of split, fix and constitute by being welded on the protecgulum one.
Above-mentioned intermediate member 3 forms the annular recess 17 of sealing usefulness on the outer circumferential face of the 3c of plectane portion on the inboard that is positioned at protecgulum 5, and forms annular recess 19 on the outer circumferential face of hub portion 3b.Then, piston 20 is rabbeted with the oil seal shape by the O shape circle 21,22 that is contained in respectively on above-mentioned 2 annular recess 17,19, at this piston 20 with between the cylinder that constitutes between by 3c of plectane portion and wheel hub 3b, forms the hydraulic chamber 23 that constitutes above-mentioned oil sector 11.Then, this hydraulic chamber 23 that forms between above-mentioned piston 20 and housing 2 is in interior all sides (internal side diameter) of described clutch plate 14 and clutch disk 13, be configured to this plate 14 on axle direction and coil 13 overlapping.In addition, above-mentioned piston 20, all sides (internal side diameter) lip part 20a that protrude (side in transmission side, the housing) towards the axle direction rear in it, the inner peripheral surface of this lip part and above-mentioned O shape circle 22 slip, its peripheral part bending (is started pusher side, housing foreign side) towards axle direction the place ahead and is protruded in addition, and the inner peripheral surface of the cylindrical part 20b of this protrusion encloses 21 with above-mentioned O shape and slips.In addition, hydraulic chamber 23 also can constitute between piston 20, the 3c of plectane portion, hub portion 3b and middle cylindrical portion 5c.
Further, above-mentioned piston 20 extends formation clutch operating portion in the external diameter direction, becomes the front end 20c of the extension part 20c of this operation unit 1Combine with above-mentioned spline 15 with this piston of backstop on every side, and on the intermediate portion of above-mentioned extension part 20c, form protuberance 20c 2, this protuberance is connected on the inner peripheral surface of protecgulum front face side 5a and the position of contraction (going out) side (start clutch release position) of positioning piston 20 by retaining.Therefore, in the hydraulic chamber 23 of piston 20 owing to there is not the protuberance of above-mentioned location usefulness, thus begin from the piston retraction position begin to supply with oil pressure the time, as bearing area, can begin moving of piston with whole of the piston of hydraulic chamber 23 rapidly.In addition, on this extension part, form hole 20d and the groove 20e that oil extraction is used.
In addition, on the hub portion 3b of intermediate member 3, block fixed dam 25 by snap ring, contraction is provided with backspring 26 between the back side of this baffle plate 25 and piston 20.On the other hand, intermediate member 3 forms recess 3d in hub portion 3b side, the input shaft 28 of interlocking automatic transmission in this recess 3d.Form on this input shaft and connect axial oilhole 28a, this oilhole 28a is in the upper shed of axle front end, and installation O shape is enclosed (seal arrangement) 27 between this input shaft and intermediate member recess 3d.
Then, on intermediate member 3, formation is from the oilhole 29a of above-mentioned recess 3d break-through axle direction setting and the oilhole 29b that offers between the bight of this oilhole and hub portion 3b, oil pressure from the oilhole 28 of above-mentioned input shaft imports to hydraulic chamber 23 from its front end opening by oilhole (oil circuit) 29a, 29b.At this moment, the oilhole 28a of input shaft owing to import to the oilhole 29a that forms at intermediate member 3 from its front end, adopts the just enough inaccessible intermediate member side of 1 O shape circle 27 not need sealed member between input shaft 28 and intermediate member 3, like this, can allow oil channel structures become simple.
On the other hand, on above-mentioned input shaft 28, spline is combined into start clutch device 12 1The boss (output block) 30 of outlet side, at the outside diameter of this boss 30, accommodate in the part A in the major diameter that constitutes by above-mentioned protecgulum riser portions 5c and bonnet 6 etc., accommodate above-mentioned damping device 12 1In addition, accommodate among the part B at the minor diameter of the internal side diameter of the protecgulum middle cylinder 5b of portion, configuration packet contains the above-mentioned start clutch 10 of oil sector 11.Damping device 121 comprises 2 follower plates 33 that connected by driver plate 31, intermediate plate 32, these driver plate and intermediate plates of clamping and the 2 kinds of coil springs 34,35 that dispose on different radii.
Then, at above-mentioned damping device 12 1The major diameter of front side accommodate in the part A configuration connecting plate (input block) 36.This connecting plate 36, be annular circular plate shape, the above-mentioned clutch hub 16 of welding constitutes one on the outer side surface of heart side therein, in addition, its outer circumferential face bends to the convex shoulder shape on axle direction, and form jagged breach 36a, on this breach, be connected with the periphery jog 31a combination of above-mentioned driver plate 31.Further, the interior perimembranous of this connecting plate 36 becomes the hub portion 36b of tubular, and this hub portion can be supported on the outer circumferential face 30a of above-mentioned boss 30 with being free to slide.In addition, on this boss 30,1 extension part 33a of above-mentioned follower plate 33 is fixed into one by ring-shaped member (annulus) 37 clampings and by rivet 38.
In addition, on the outer circumferential face front side of this boss part 30, form lip part (bump) 30b that protrudes to the external diameter direction, the axle direction position to above-mentioned connecting plate hub portion 36b between this lip part 30b and above-mentioned follower plate extension part 33a positions.That is, this connecting plate 36, its hub portion 36b retaining be connected on boss part outer circumferential face (supporting portion) 30a last and its axially mobilely limited, support by follower plate extension part (limiting part) 33a and lip part 30b.On the other hand, one is fixed on the ring-shaped member 37 on the above-mentioned boss, forms short lip part 37a on its outer circumferential face, and this lip part retaining connects the inner peripheral surface of above-mentioned intermediate plate 32, supports this intermediate plate 32 and driver plate 31.
In addition, above-mentioned boss 30, medial side face is rearward protruded, and gets involved thrust-bearing 39 between the trailing flank 7a of this bump 30d and above-mentioned rear-wheel hub 7, in addition, between the trailing flank of the hub portion 3b of the leading flank of boss 30 and above-mentioned intermediate member 3, get involved thrust-bearing 40.Utilize this two thrust-bearings 39,40, to boss 30 and with the damping device 12 of its one 1, further the connecting plate 36 that is moved and supported by boss restrictive axes direction as described above limits it with respect to housing 2 moving on axle direction.
On the other hand, the spline 30e that on the inner peripheral surface of above-mentioned boss 30, forms, combine with the spline 28b that on input shaft 28, forms, therefore, become the above-mentioned boss 30 of output block, be connected with the input shaft 28 of automatic transmission, its both sides directly are supported on the housing 2 by getting involved above-mentioned thrust-bearing 39,40 simultaneously.In addition, on this input shaft 28, keep giving fixed gap a stop sleeve axle 41 by getting involved axle sleeve 42.The fore-end of this quill 41 is being nested on the boss hub portion 30f with getting involved O shape circle 43 back oil seal shapes.In addition, on the outside diameter of this quill 41, keep giving fixed gap b to dispose the cylindrical part 7b of above-mentioned rear-wheel hub 7, and this rear-wheel hub cylindrical part 7b.Get involved axle sleeve 46 and also be supported on the mission case 45 free to rotately, between this mission case 45 and cylindrical part 7b, carry out shaft sealing (that is, keeping the oil seal shape) simultaneously by oil sealing 47.And, on the part that the axle sleeve 42 with above-mentioned quill 41 joins, form a plurality of grooves 49 that axially extend.
Therefore, between above-mentioned quill 41 and input shaft 28, the spline 30e and the 28b that have lacked by above-mentioned space a, groove 49 and a part of tooth, constitute in the mission case oil circuit and with the housing of above-mentioned start clutch device in the 1st oil circuit that is communicated with, and between above-mentioned quill 41 and rear-wheel hub cylindrical part 7b, constitute the 2nd oil circuit by above-mentioned space b.Like this, constitute the lubricant oil from mission case 45, a direction housing 2 interior supplies of process the above-mentioned the 1st and the 2nd oil circuit, the circulating oil path that process the opposing party discharges.The lubricant oil of being supplied with is in housing 2, to thrust-bearing 39,40, start clutch 10, damping device 12 1Deng each parts be lubricated the back and discharge.At this moment, between the boss outer circumferential face 30a and hub portion 36b inner peripheral surface of the supporting surface that becomes connecting plate 36, and and between the lip part 37a of the ring-shaped member of the supporting surface that becomes intermediate plate 32, also supply with enough lubricant oil.
Fig. 3 represents above-mentioned damping device 12 1(12 2) partly cut-away after plan view.Above-mentioned driver plate 31 is a ring-type, on its periphery, become jog 31a with the connecting part of above-mentioned connecting plate 36, and the interior all sides in ring-type have the protuberance 31b that protrudes to internal diameter direction, in addition, in the hole 31c that on above-mentioned annulus, forms, accommodate by the minor diameter coil spring (the 2nd spring) 34 after the specified rate compression.In addition, above-mentioned intermediate plate 32 has the protuberance 32a that protrudes to the external diameter direction on its outer circumferential face, and between this two protuberance 31b, 32a, compression is provided with the 1st spring 35 that is made of the coiled coil spring.In addition, on the both sides of driver plate 31 that disposes on the above-mentioned same plane and intermediate plate 32, dispose and with pin 52 interconnect, fixing follower plate 33, have the 33c of spring housing, the 33d that accommodate above-mentioned the 1st spring 35 and the 2nd spring 34.The 1st 33c of spring housing has by the Zhou Fangxiang length of accommodating adjacent 2 the 1st springs 35 simultaneously, and the 2nd 33d of spring housing is by the Zhou Fangxiang length that has the given distance of swimming with respect to above-mentioned the 2nd spring 34.
Therefore, this damping device 121 at first with the rotatory force of driver plate 31, compress the 1st spring 35 by protuberance 31b, and passes to protuberance 32a.Further, pass to the rotatory force of the protuberance 32a of this intermediate plate 32, compress the 1st adjacent spring 35 and pass to follower plate 33 by the 33c of spring housing.Like this because 2 the 1st springs 35 are being got involved the effect that intermediate plate 32 is connected in series, can long stroke absorption on driver plate 31 impact force and pass to follower plate 32.
In addition, when between by the driver plate 31 of the 1st spring 35 of 2 effects of above-mentioned series connection and follower plate 33, producing the relatively rotating of regulation, absorbed by the distance of swimming between the end of the 33d of spring housing and the 2nd spring housing 34, and compress the 2nd spring 34, and the rotatory force of driver plate 31 is passed to follower plate 33 by this chamber end.Like this, absorb in the compression by above-mentioned the 1st spring 35 on the basis of given moment, the compressive strain power effect of the 2nd spring 34 absorbs impact force by the big resistance in the stroke way in above-mentioned stroke way.That is, because damping device 12 1, 12 2Has intermediate plate 32, the 1st spring 35 is between driver plate 31 and the intermediate plate 32 and series connection effect between this intermediate plate 32 and follower plate 33, therefore form long damping stroke by the 1st and the 2nd spring 35,34 both sides, the impact force that acts on the driver plate 31 can be absorbed and pass to driver plate 33 by this long stroke.Like this, start clutch 10 in conjunction with the time moment change that can the good absorption motor produces.In addition, even utilize the principle that also can obtain big rotation angle by spring contraction equal length, internal side diameter, by will setting the internal side diameter that needed the 1st spring 35 of long stroke is arranged on the 2nd spring 34, when being arranged on outside diameter, the 1st spring 35 compares, can set longer stroke.
Below, to this start clutch device 1 1Effect describe.Be under the state that stops at vehicle, the oil pressure of hydraulic chamber 23 is released, and piston 20 is by backspring 26 compression bump 20c 2Connect with protecgulum 5 retaining it is on the return position, start clutch 10 is in cut state.Under this state, though the housing 2 that is connected on the explosive motor rotates with motor, because above-mentioned start clutch 10 is cut off, so can not pass to clutch hub 16, input shaft 28 stops action.In addition, also can supply with given low oil pressure to hydraulic chamber 23, start clutch 10 is supplied with creep moment as sliding mode to input shaft 28.
When driver's step on the accelerator output starting signal, switch not shown valve, supply with given oil pressure to the oilhole 28a of input shaft 28, this oil pressure is supplied with to hydraulic chamber 23 by oilhole 29a, 29b.Like this, piston 20 opposing backsprings 26 move, and extension part 20c pushes clutch plate 14 and clutch disk 13, in conjunction with start clutch 10.At this moment, clutch counter-force according to the oil pressure that affacts hydraulic chamber 23, as the power on the opposite direction, act directly on the 3c of plectane portion of the housing that constitutes hydraulic chamber and act on by this backing plate 14b and snap ring 14a on the 5b of intermediate cylinder portion of above-mentioned housing, in this housing 2, directly absorb, can not affact on other parts of start clutch device.
Then, the rotatory force by the housing that is connected to form 2 of start clutch 10 passes to damping device 12 by clutch hub 16 and connecting plate 36 1This damping device, as mentioned above, because the series connection effect of adjacent 2 the 1st springs 35 of internal side diameter forms long stroke, and the impact force of the combination of above-mentioned start clutch 10 is followed in absorption, further the 2nd spring 34 by the outside diameter that acts in the way of above-mentioned long stroke absorbs big impact force, pass to follower plate 33, further pass to input shaft 28 from boss 30 with this plate one.Above-mentioned damping device 12 1Has big formation on the diametric(al) in being housed in the major diameter accommodation section A of housing 2, according to this formation, because the long stroke that the series connection effect of above-mentioned the 1st spring 35 forms and because the 2nd spring 34 absorption load on the way increases, combines absorbs the impact load of above-mentioned formation such as start clutch 10 grades.
Then, damping device 12 1, when becoming normal moment state after above-mentioned impact load effect, spring 34,35 discharges from its compressive strain, turns back to original state, with the state transfer rotatory force of constant.At this moment, above-mentioned connecting plate 36, though its hub portion 36b is located on axle direction by boss outer circumferential face 30a and supports, but following under the impact absorption stroke state of above-mentioned damping device, follow relatively rotating of driver plate 31 and follower plate 33, above-mentioned hub portion 36b and boss outer circumferential face 30a also relatively rotate, and under the normal rotation state, hub portion 36b and boss outer circumferential face 30a be unitary rotation in fact also.Therefore, connecting plate 36, is supported by boss outer circumferential face one at its most of the time.In addition, when the impact absorption of damping device, though and boss outer circumferential face 30a between produce relative rotation, such the sands are running out, and under the sufficient lubrication state owing to carry out above-mentioned slide relative, so on connecting plate supports, can not have problems.
Equally, intermediate plate 32 is also supported by the ring-shaped member 37 with boss 30 one, but the stroke ratio of intermediate plate and driver plate 31 and and the connecting plate 36 of its one between stroke little, and the trip time is short, and carrying out under the lubricating status fully, so the support of intermediate plate 32 and driver plate 31 can not have problems.
In addition, in housing 2, between the 5b of middle cylinder portion and peripheral part 5d of protecgulum 5, form space C, this space C carries out obturation by cover 55 is welded on the protecgulum.This cover 55 is connected on the explosive motor after connecting board with pliability on its tapped hole 55a.Above-mentioned space C can be empty, also can fill the predetermined weight thing as required, to improve the flywheel effect of housing 2.In addition, also can in space C part, dispose motor generator, as mixing (also comprising the idling limit stoper) automobile-used drive unit.In addition, 56 gear rings used of expression engine starting gears in the drawings.
The following start clutch device 1 that comprises overrunning clutch that illustrates according to Fig. 2 2Compare with embodiment shown in Figure 1, just setting up difference on the overrunning clutch this point, other parts are owing to roughly the same, so major component adopts identical symbol, and omit its explanation.
The boss 30 of support and connection plate 36, its rear is dug down a bulk of, configuration overrunning clutch 60 in this groove 30g, and side face of all hub portion 30f combines (30e, 28b) with input shaft 28 splines in it.Overrunning clutch 60 has outer race 61, diagonal brace 62, inner race 63 and left and right sides side plate 65, and interlocking outer race 61 positions like that, disposes in above-mentioned boss recess 30g.
The rear side of outer race 61 is same to the embodiment's of extension of external diameter direction and front ring-shaped member (37), and this ring-type extension part (annulus) 61a is fixed on the boss 30 with follower plate extension part 33a with rivet 38.In addition, the peripheral part of ring-type extension part 61a becomes lip part equally, and retaining connects and supports intermediate plate 32.Inner race 63 its interior all sides become the sleeve 63a that axially extends, and the inner peripheral surface of this sleeve is carried out spline simultaneously and connects (63b, 41b) by above-mentioned quill 41 interlockings.On the other hand, above-mentioned boss 30, preceding (one) end at its outer circumferential face (supporting portion) 30a has lip part (bump) 30a, the wheel hub 36b of connecting plate 36 is slidably supported on the above-mentioned outer circumferential face, by above-mentioned lip part 30a and follower plate extension part 33a clamping, moving on the restrictive axes direction is also supported simultaneously.
In addition, on this quill 41, form hole 41c, the gap a between input shaft 28 and the quill 41 and quill 41 are communicated with gap c between the sleeve 63a by this hole.Like this, be communicated with spline 63b and 41b that above-mentioned gap a, hole 41c, gap c and a part of tooth cut, constitute the 1st oil circuit, communication gap b constitutes the 2nd oil circuit simultaneously.Further, above-mentioned the 1st oil circuit is communicated with in the front face side of overrunning clutch 60, and spline 30 and/or 28b and the thrust-bearing 40 that cuts by a part simultaneously and is communicated with in the housing 2, like this, and from mission case 45 and start clutch device 1 2Housing 2 in be communicated with, form the lubricant oil circulating oil path that constitutes by above-mentioned the 1st oil circuit and the 2nd oil circuit.
Then, on the inner race 63 of above-mentioned overrunning clutch 60, quill 41 by sleeve 63a connection, be connected on the point element of the forward-reverse switching device in the CVT (continuously variable transmission), this overrunning clutch 60 constitutes restriction by the selected forward gears of driver or retreat the rotation of direct of travel opposition side of shelves.Promptly, when operating the D position of forward gears, the rotation of above-mentioned overrunning clutch 60 restriction vehicle rollback directions, prevent retreating when vehicle stops on upward trend, in addition when operating when retreating grade, the rotation of above-mentioned overrunning clutch restriction vehicle forward direction prevents advancing when vehicle stops on the downhill path.
Below, according to Fig. 4 part embodiment after changing is described.In the start clutch device of foundation present embodiment, the embodiment of the structure of damping device and front shown in Figure 1 is roughly the same, but its input/output relation uses on the contrary, therefore, it connects and composes different with the embodiment of front, because other parts are roughly the same, major component adopts identical symbol, and omits its explanation.
Damping device 12 22 that plate constituted, the follower plates in preceding embodiment about being configured in vain on the outside, become the driver plate 33 of present embodiment, these 2 plates of clamping become the follower plate 31 of present embodiment at driver plate outside diameter configuration, in preceding embodiment, and intermediate plate the 32, the 1st spring 35 and the 2nd spring 34 in neutral position that is in these Power Trains is identical on function.
Then, the clutch hub 16 of forward clutch 10 forms the spline 16a that combines with above-mentioned clutch disk 13 on its outside diameter, extend to the internal diameter side direction from this, becomes the clutch hub one body component 16b that has formed wheel hub 16c cylindraceous at front end.On the extension part that becomes this body component (input block) 16b, utilize one extension part 33a of the fixedly connected driver plates 33 of one such as rivet 70.
In addition, become the boss 30 of output block, on forward end, form supporting portion (outer circumferential face) 30a of tubular, extend formation joint 30f simultaneously on the side direction external diameter direction of its rear end, further, the front end of this joint crooked formation 30g of edge portion (bump) on axle direction.On above-mentioned joint 30f, utilize rivet 72 one to fix tabular connecting plate 73, and be connected with the jog 31a combination of driver plate 31 by the notch part 73a that on this connecting plate front end, forms.Further, on the forward end of above-mentioned boss supporting portion 30a, stop thrust washer (anticreep parts) 76 by snap ring (anticreep parts) 75.
Therefore, clutch hub one body component 16b with driver plate (driving side parts) 33 one, its hub portion 16c can be supported on supporting portion (outer circumferential face) 30a of boss 30 with being free to slide, and the hub portion of this body component, (1) is distolateral before it connects with thrust washer 76 retainings, and (another) the distolateral 30g of edge portion front end retaining with boss connects thereafter, and it is axial mobile to be limited in the left and right sides.
Then, from the moment of clutch hub 16, pass to damping device 12 2Driver plate 33.This damping device, equally, because the series connection effect of adjacent 2 the 1st springs 35 of internal side diameter, become long stroke, absorption is followed the combination of above-mentioned start clutch 10 and the impact force that produces, further the 2nd spring 34 by the outside diameter that acts in the way of above-mentioned long stroke absorbs big impact force, and passes to follower plate 31, further passes to boss 30 from this follower plate by connecting plate 73.
Therefore, according to this start clutch device 1 1, 1 2, 1 3Owing to do not use torque-converters (T/C), by being connect, takes off start clutch, and motor output is connected can allows vehicle start on the input shaft 28 of automatic transmission, so the slip between the I/O when not using torque-converters can improve transmission efficiency.Further, by rabbeting in housing 2 with the oil seal shape piston 20 of start clutch 10 and independently hydraulic chamber 23 being set, can not improve the controlled of start clutch 10 from this hydraulic chamber 23 leakage of oil in housing 2.In addition, not need by the start clutch that constitutes with housing 2 separated components with and the clutch casing used of oil sector etc., can obtain simple structure, therefore, can obtain high-performance.And, because damping device 12 1, 12 2Go up and row arrangement at the axle direction (being respectively left and right directions among Fig. 1, Fig. 2 and Fig. 4) of input shaft 28 with start clutch 10, so can be with the allocation position of damping spring at damping device 12 1, 12 2Diametric(al) (being respectively above-below direction among Fig. 1, Fig. 2 and Fig. 4) go up and freely to set, like this, increased at damping device 12 1, 12 2In the design freedom.
In addition, the hydraulic chamber 23 that between piston 20 and housing 2, forms, because interior all sides and these clutch plates 14 and clutch disk 13 overlapping being configured on axle direction of clutch plate 14 and clutch disk 13, so by start clutch 10 and damping device 12 1, 12 2Though the configuration axle direction length of having extended housing 2 side by side on axle direction by allowing hydraulic chamber 23 and clutch plate 14 and clutch disk 13 overlapping setting the on axle direction, can inferior limit suppresses the prolongation of the axle direction length of housing 2.
Further, housing 2, the 2nd housing parts that comprises the joint that the cover that is connected on the not shown engine crankshaft 55 constitutes, the protecgulum (the 1st housing parts) 5 of fixing this joint, constitutes by the intermediate member 3, bonnet 6 and the rear-wheel hub 7 that are connected on this protecgulum 5, because clutch plate 14 interlockings are on the spline 15 of protecgulum 5, go out moment so can not go up the defeated motor of transmission at weld part (connecting part) j1, j2 etc. between the 1st housing parts (5) and the 2nd housing parts (3,6,7), therefore, guarantee the intensity of the housing 2 that constitutes by a plurality of parts easily.
In addition, because piston 20, the interlocking of oil seal shape is on intermediate member 3 grades that constitute the 2nd housing, when the hydraulic chamber 3 between piston 20 and intermediate member 3 etc. carries out the oil pressure supply, push clutch plate 14 and clutch disk 13, thus formation in hydraulic chamber 23 such as the connecting part of protecgulum 5 and intermediate member 3 etc., therefore, even the high oil pressure of effect also can reliably prevent leakage of oil at this moment in this hydraulic chamber 23.
Then, damping device 12 1, 12 2Comprise driver plate 31, follower plate 33, the 1st spring 35 that acts on 33 from driver plate 31 to follower plate, between driver plate 31 and follower plate 33, keep the 2nd spring 34 of the regulation distance of swimming and effect, driver plate 31 is connected with clutch hub 16, and follower plate 33 is connected with boss 30.Like this, in order to set shock absorbing characteristics, even the 1st and the 2nd spring 35,34 is set, because start clutch 10 and damping device 12 1, 12 2On axle direction, be arranged side by side, therefore, can prevent start clutch device 1 1, 1 2, 1 3Ever-larger diameters.
(utilizing on the industry)
As mentioned above, start clutch device of the present invention, can be used as comprise explosive motor with And all for motor vehicle start clutch devices uses of automatic transmission, be particularly suitable for requiring tool Have in the start clutch device of simple structure and high reliability and use.
1. start clutch device, have: in wrap in clutch and the damping device in the housing that is connected with the motor output block and be connected output block on the input shaft of automatic transmission, take off described clutch and motor output is connected with the input shaft of described automatic transmission or cuts off by connecing, it is characterized in that:
Described clutch has:
The 1st friction member that constitutes with being located at the spline tabling on the described housing,
The 2nd friction member,
Support the 2nd friction member clutch hub,
Oil seal shape interlocking in described housing and push the 1st and the 2nd friction member piston and
Be formed on the hydraulic chamber between described piston and the described housing,
Described damping device, one end are connected on the described clutch hub and the other end is connected on the described output block, and with the configuration side by side on axle direction of described clutch.
2. start clutch device according to claim 1 is characterized in that: described hydraulic chamber is configured in interior all sides of the described the 1st and the 2nd friction member and this friction member overlapping on axle direction.
3. start clutch device according to claim 1 is characterized in that: described housing has and is connected the joint on the described motor output block and fixes the 1st housing parts of this joint and be connected the 2nd housing parts on the 1st housing parts.
4. start clutch device according to claim 3, it is characterized in that: described piston, the interlocking of oil seal shape when carrying out the oil pressure supply to the hydraulic chamber that forms between described piston and described the 2nd housing parts, is pushed the described the 1st and the 2nd friction member in described the 2nd housing parts.
5. start clutch device according to claim 1, it is characterized in that: described damping device comprises driver plate, follower plate, from described driver plate to the 1st spring that acts on the described follower plate with keep the 2nd spring of regulation distance of swimming effect between described driver plate and described follower plate
Described driver plate is connected with described clutch hub, and described follower plate is connected with described output block.
6. start clutch device according to claim 5 is characterized in that: described damping device further comprises intermediate plate,
Described the 1st spring, from described driver plate to the described intermediate plate and at this intermediate plate to series connection effect the described follower plate.
7. start clutch device according to claim 6 is characterized in that: described the 1st spring is configured in the radially inner side of described the 2nd spring.
8. start clutch device according to claim 1 is characterized in that: on the inner peripheral surface of described output block, the input shaft of speed changer connected with spline,
On this input shaft, keeps the 1st space and rabbeted, and this quill oil seal shape interlocking is on described output block by quill,
On the outside diameter of described quill, keep the 2nd space, will constitute the hub portion of described housing, be supported on the mission case of described speed changer free to rotate and oil seal shape,
The the described the 1st and the 2nd space forms the lubricant oil circulating oil path in the described housing.
9. start clutch device according to claim 1 is characterized in that: on a side of described output block, forms recess, and in this recess, loads overrunning clutch by outer race is fixed on this output block,
On the inner race of this overrunning clutch, form sleeve part,
On the inner peripheral surface of described output block, carry out spline and combine with the input shaft of speed changer,
Keep the 1st space and rabbeted by quill on this input shaft, the sleeve part of the described inner race of interlocking is also carried out the spline combination on this quill simultaneously,
On the outside diameter of described quill and sleeve part, keep the 2nd space, will constitute the hub portion of described housing, be supported on the mission case of described speed changer free to rotate and oil seal shape,
Form intercommunicating pore on the fore-end of described quill, the described the 1st and the 2nd space forms the lubricant oil circulating oil path in the described housing.
10. start clutch device according to claim 1 is characterized in that: described housing comprise side face and with the cylindrical portion and the hub portion of this side face one,
The spline that in described cylindrical portion, is provided with on all sides and on the spline that forms on the outer circumferential face of clutch hub, the interior friction plate that is combined into the external friction plate of described the 1st friction member respectively and becomes described the 2nd friction member, the described clutch that formation is made of wet multi-plate clutch
In the side face of described housing and the hydraulic chamber between the piston, be communicated with the oil circuit that on described hub portion, forms,
By the described clutch of described piston pressing operation, and directly support by described housing and to push the clutch counter-force that forms by this.
11. start clutch device according to claim 10 is characterized in that: described cylindrical portion is the middle cylindrical portion that forms on the diametric intermediate portion of the front side of described housing,
Described side face, by be configured in described in the middle of the flat-shaped part of internal side diameter of cylindrical portion constitute,
In the major diameter accommodation section that the rear side by described housing forms, accommodate described damping device, simultaneously in the minor diameter accommodation section that the internal side diameter of cylindrical portion forms in the middle of the front side of described housing described, the described clutch of configuration and the oil sector that constitutes by described piston and hydraulic chamber.
12. start clutch device according to claim 10 is characterized in that: fixed dam on the hub portion of described housing, contraction is provided with backspring between the back side of this baffle plate and described piston.
13. start clutch device according to claim 10 is characterized in that:, be formed directly on the cylindrical portion inner peripheral surface of described housing with the described spline that the external friction of described start clutch is hardened and closed.
14. start clutch device according to claim 10 is characterized in that: on the end face of the hub portion of described housing, form recess, the input shaft of oil seal shape interlocking speed changer in this recess,
On described input shaft, be formed on the oilhole that extends on the axle direction, the open-ended of this oilhole is communicated with the oil circuit that forms on described hub portion.
15. start clutch device according to claim 10 is characterized in that: described piston has the operation unit that extends and operate described start clutch to the external diameter direction,
This operation unit connects with described housing inner face retaining when described start clutch discharges, and the periphery of this operation unit combines with the spline of the interior all sides of described cylindrical portion.
16. start clutch device according to claim 1, it is characterized in that: described clutch comprise with the spline of described housing unitary rotation external friction plate that combine, that become described the 1st friction member, with mutual configuration of this external friction plate and the interior friction plate that combines with the spline that on clutch hub, forms, become described the 2nd friction member
Described damping device comprises back flow side parts, slave end parts, gets involved from the spring of described back flow side parts to the power transfer path of slave end parts,
Further comprise the input block that is connected and becomes the boss of described output block, constitutes and be connected with described clutch hub one with described slave end parts with described back flow side parts,
On the outer circumferential face of described boss, on sense of rotation, can be free to slide and be limited in the inner peripheral surface that axle direction supports described input block movably.
17. start clutch device according to claim 16 is characterized in that: described input block, have hub portion cylindraceous within it on the side face,
Described boss, the bump that on axle direction one end, protrudes that comprises the supporting portion cylindraceous of supporting described hub portion and this supporting portion to the external diameter direction, and on the other end on the axle direction of this supporting portion, the limiting part that is provided with that restrictive axes direction at least moves and protrudes to the external diameter direction of this supporting portion
Described input block is supported on the supporting portion of described boss and by described bump and limiting part clamping moving on the restrictive axes direction with being free to slide.
18. start clutch device according to claim 17, it is characterized in that: the bump of described boss, be integrally formed lip part on described supporting portion cylindraceous, and described limiting part is the extension part that is fixed on the slave end parts on the described boss part.
19. start clutch device according to claim 18 is characterized in that: described input block be fixing described clutch hub and to diametric(al) extends, be connected with described back flow side parts in its outer radius portion, the while within it footpath portion form the connecting plate of described hub portion.
20. start clutch device according to claim 17 is characterized in that: described slave end parts are made of 2 follower plates of described back flow side parts of clamping and described spring,
At least one side of these 2 follower plates is fixed on the described boss,
With the outer circumferential face of the annulus of described boss one on can be free to slide the inner peripheral surface that ground directly supports described back flow side parts.
21. start clutch device according to claim 20, it is characterized in that: described damping device, comprise driver plate, intermediate plate, follower plate, from described driver plate to the intermediate plate and the 1st spring from described intermediate plate to series connection effect the described follower plate and between described driver plate and described follower plate, keep the 2nd spring of regulation distance of swimming effect
Described driver plate constitutes the described back flow side parts that are connected with described input block, and described intermediate plate constitutes the described back flow side parts that supported by described annulus.
22. start clutch device according to claim 21 is characterized in that: described annulus is to protrude the parts that form on the outer race of the overrunning clutch in being disposed at the recess of described boss, to the external diameter direction.
23. start clutch device according to claim 17 is characterized in that: the bump of described boss be the joint with the integrally formed described slave end parts of this boss, and described limiting part is the anticreep parts that stopped by described supporting portion.
24. start clutch device according to claim 23 is characterized in that: described input block, clutch hub one body component integrally formed with described clutch hub, be connected and form described hub portion with described back flow side parts by inside diameter.
25. start clutch device according to claim 24 is characterized in that: described back flow side parts, 2 driver plates that are made of clamping described slave end parts and spring constitute,
The driver plate of the described clutch hub side in these 2 driver plates is fixed on described clutch hub one body component,
Comprise the connecting plate that is used to connect described slave end parts and described boss that extends diametrically,
With the outer circumferential face of the annulus of described boss one on, can support the inner peripheral surface of described back flow side parts with being free to slide.
26. start clutch device according to claim 25, it is characterized in that: described damping device, comprise driver plate, intermediate plate, follower plate, from described driver plate to the intermediate plate and the 1st spring from described intermediate plate to series connection effect the follower plate and between described driver plate and described follower plate, keep the 2nd spring of given distance of swimming effect
27. start clutch device according to claim 26 is characterized in that: described annulus is to protrude formed parts to the external diameter direction on the outer race of the overrunning clutch in being configured in the recess of described boss.
28. start clutch device according to claim 16 is characterized in that: described housing, on one side's side, have the major diameter accommodation section, and have the minor diameter accommodation section in its opposing party's side,
In described major diameter accommodation section, accommodate described damping device and described input block, in described minor diameter accommodation section, dispose described start clutch and oil sector thereof.
CNB028031946A 2001-08-14 2002-08-13 Start clutch device CN1323246C (en)
JP246277/2001 2001-08-14
JP246276/2001 2001-08-14
JP2001246276 2001-08-14
JP2001246277 2001-08-14
JP246277/01 2001-08-14
JP246276/01 2001-08-14
CN1476518A CN1476518A (en) 2004-02-18
CN1323246C true CN1323246C (en) 2007-06-27
ID=26620533
CNB028031946A CN1323246C (en) 2001-08-14 2002-08-13 Start clutch device
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EP (1) EP1418359B1 (en)
JP (4) JP4267445B2 (en)
KR (1) KR100881792B1 (en)
CN (1) CN1323246C (en)
WO (1) WO2003016736A1 (en)
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2002-08-13 EP EP20020760620 patent/EP1418359B1/en not_active Expired - Fee Related
2002-08-13 CN CNB028031946A patent/CN1323246C/en not_active IP Right Cessation
2002-08-13 JP JP2003521000A patent/JP4267445B2/en not_active Expired - Fee Related
2002-08-13 KR KR1020047000673A patent/KR100881792B1/en not_active IP Right Cessation
2003-09-10 US US10/450,569 patent/US7017724B2/en not_active Expired - Fee Related
2008-08-18 JP JP2008210200A patent/JP4837000B2/en not_active Expired - Fee Related
2008-08-18 JP JP2008210199A patent/JP2009002520A/en active Pending
2008-08-18 JP JP2008210201A patent/JP2009008268A/en not_active Withdrawn
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JP2009002520A (en) 2009-01-08
JP4837000B2 (en) 2011-12-14
KR100881792B1 (en) 2009-02-03
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2004-02-18 PB01 Publication
2015-09-30 CF01 Termination of patent right due to non-payment of annual fee
Termination date: 20140813
2015-09-30 EXPY Termination of patent right or utility model