Source: https://patents.google.com/patent/JP2013514501A/en
Timestamp: 2020-01-21 15:40:18
Document Index: 407058802

Matched Legal Cases: ['art 52', 'art 54', 'art 52', 'art 54', 'art 52', 'art 54', 'art 52', 'art 52', 'art 54', 'art 54', 'art 56']

JP2013514501A - Mounting device for driving system of automobile - Google Patents
Mounting device for driving system of automobile Download PDF
JP2013514501A
JP2013514501A JP2012543487A JP2012543487A JP2013514501A JP 2013514501 A JP2013514501 A JP 2013514501A JP 2012543487 A JP2012543487 A JP 2012543487A JP 2012543487 A JP2012543487 A JP 2012543487A JP 2013514501 A JP2013514501 A JP 2013514501A
JP2012543487A
JP5592955B2 (en
マティアス・クラウス
アズワン・アジズ モハマド
2009-12-17 Priority to DE102009058560.5 priority Critical
2009-12-17 Priority to DE200910058560 priority patent/DE102009058560A1/en
2010-09-14 Application filed by ダイムラー・アクチェンゲゼルシャフトＤａｉｍｌｅｒ ＡＧ filed Critical ダイムラー・アクチェンゲゼルシャフトＤａｉｍｌｅｒ ＡＧ
2013-04-25 Publication of JP2013514501A publication Critical patent/JP2013514501A/en
2014-09-17 Publication of JP5592955B2 publication Critical patent/JP5592955B2/en
The invention comprises at least one shaft (14), a drive part (16) connected to the shaft (14) in a torque resistant manner, and at least one bearing ring (36) of the shaft (14). The bearing ring (36) can be applied in the axial direction (44) of the shaft by means of a tensioning device (50). As a result of the relative rotation of the drive part (16) with respect to), a force can be applied in the axial direction (44) of the shaft (14) by the tensioning device (50).
The invention relates to a drive train mounting device for a motor vehicle of the type indicated in the preamble of claim 1, in particular a commercial vehicle.
Japanese Patent Application Laid-Open No. H10-228561 for an automobile including two rolling bearings in which an outer ring is disposed in a housing and an inner ring is disposed on a shaft, and a tension device that axially pulls the outer ring with respect to the inner ring. A mounting device is disclosed. In this case, the tension device includes an intermediate element, and this intermediate element can change the preload in the axial direction of the rolling bearing by changing the thickness dimension according to the load. This intermediate element is implemented, for example, as an electrically controllable piezoelectric element.
This type of actuator and other, eg, mechanical or hydraulic adjusters, require control and auxiliary energy, which undesirably increases complexity and resulting cost.
German Patent Application Publication No. 102005027082A1
The object of the present invention is therefore to provide a mounting device of the kind mentioned at the outset, which is low in complexity and cost.
This problem is solved by a drive system mounting device for an automobile, particularly a commercial vehicle, having the features of claim 1. Advantageous embodiments with suitable and important developments of the invention are indicated in the dependent claims.
A vehicle drive system mount device according to the present invention comprises at least one shaft, a drive component connected in a torque resistant manner to rotate together with the shaft, and at least one bearing ring of the shaft, The bearing ring is a mounting device that can apply a force in the axial direction of the shaft by a tension device, and the shaft bearing ring rotates the drive component relative to the bearing ring, so that the shaft is driven by the tension device. It is characterized in that a force can be applied in the axial direction.
In this case, the shaft of the mounting device according to the present invention can be driven by the drive component. The shaft portion rotates in response to the torque fed into the shaft from the driving component. The shaft portion is a shaft portion arranged downstream in the direction of the torque flow. And connected to the torque resistance, the shaft bearing ring is located) and rotate relatively. In other words, this means that the shaft rotates or twists in response to the amount of torque sent into the shaft via the drive component. Furthermore, as a result, it also means that the drive component rotates relative to the bearing ring of the shaft, albeit depending on the amount of torque fed in. This relative rotation of the drive component relative to the bearing ring allows the bearing ring to apply an axial force using a tensioning device, so that depending on the amount of torque fed into the shaft, the bearing with this bearing ring Preload can be applied in the axial direction.
The aforementioned bearings include not only the aforementioned bearing rings, for example formed as bearing inner rings connected to the shaft for torque resistance, but also corresponding bearing outer rings, which bearing inner rings and bearing outer rings are The bearing bodies are supported by each other via a rotating body such as a tapered roller. The bearing ring in the form of a bearing inner ring exerts a force so that the bearing inner ring can be pulled against the bearing outer ring, so that an axial preload of the bearing is achieved depending on the amount of torque being fed. ing.
Thus, such a tensioning device of the mounting device according to the present invention does not require control and an energy consuming adjuster. Therefore, the mounting device according to the present invention is advantageous in energy consumption for driving an automobile because it is less complicated, has a small number of parts, and accordingly is low in cost and weight. Furthermore, the probability of failure of the mounting device according to the present invention can be evaluated as being very small because of its low complexity.
In this case, the relative rotation of the described shaft part is caused by the elasticity of the shaft, and this action is used to generate an advantageous axial preload of the bearing.
This preload of the bearing as a function of torque reduces the output loss of the bearing, especially in the low torque and medium torque ranges, resulting in a lower energy requirement for driving the vehicle. For example, if the drive device that drives the vehicle is formed as an internal combustion engine, this means a clear fuel reduction and a reduction in carbon dioxide emissions. In this case, it is possible to reduce the output loss of the bearing by up to 30% compared to known mounting devices, which improves the efficiency of the mounting device.
Besides the fact that no additional sensors and / or control units are required, the mounting device according to the invention requires less installation space and requires minimal changes to existing components, so This includes the advantage that the device can be incorporated into existing components with little time and cost. Furthermore, the mounting device according to the present invention can be retrofitted to an existing system.
In an advantageous embodiment of the invention, the tensioning device is at least partly assigned to the drive element and at least partly substantially beveled control part and correspondingly assigned to the bearing element. At least one actuating part that is substantially beveled, the control part and the actuating part interacting via at least one intermediate part, in particular a rotating body. Advantageously, the control part is formed integrally with the drive part and the bearing ring is formed integrally with the actuating part, so that the number of parts and the cost of the mounting device can be kept low. In this case, each slope shape is formed, for example, at least substantially parallel to the radial direction. Thus, in this respect, the relative rotation of the shaft or shaft part with respect to the bearing ring and thereby the relative rotation of the drive component is due to the axial and axial force exerted by the control and actuating components on the shaft bearing ring. Since the bearing ring can be converted into an axial movement, an appropriate bearing preload according to the torque is realized. The control component and the actuating component interact with each other via a rotating body. The rotating body is formed, for example, as a cylinder roller, so that a large axial force can be transmitted.
In this regard, the shaft is supported, for example, by at least two bearings, both bearings having the aforementioned bearing inner ring connected to the shaft for torque resistance and a corresponding bearing outer ring. Note that the bearing outer ring is fixed in the housing, for example. These bearings are, for example, tapered roller bearings mounted in a well-known X-type or O-type arrangement, or other arrangements. However, the mounting device according to the invention can be used with any type of rolling bearing that advantageously transmits axial and radial forces without play. This usually requires a bearing preload which, as explained, is solved in a simple manner by the mounting device according to the invention.
Such bearing preload provides optimal use of the bearing load capacity in all operating conditions, prevention of bearing play and shaft tilt, and compensation for thermal expansion.
The required or desired bearing preload, i.e. the amount of force acting in the axial direction of the shaft, is detected, for example, empirically and is conventionally adjusted accurately by spacers. In this case, the amount of bearing preload is matched to the highest load generated. This creates additional bearing loads and increases the bearing power loss as a function of torque over the entire range of use. Using an adjuster, for example in the form of an actuator, to generate an appropriate bearing preload depending on the torque reduces preload and improves efficiency in the partial load range, but has the problems already described. .
The unresolved problem due to the operation of the adjuster and the problem that the output loss of the bearing increases over the entire use range are overcome by the mounting device according to the present invention.
Advantageously, the control component is arranged in front of the drive component facing the bearing ring and the actuating component is arranged in front of the bearing ring facing the drive component. As a result, force can be transmitted appropriately and directly, and the mounting space for the mounting device according to the present invention can be reduced.
Further advantages, features and details of the invention are indicated in the following description based on preferred embodiments and figures. The features and combinations of features described in the preceding description, and the features and combinations of features described in the following description of the drawings and / or shown only in the drawings, are shown in their respective combinations. In addition, other combinations or singularities are applicable without departing from the scope of the present invention.
It is a perspective view of the embodiment of the mounting device based on the present invention. It is a longitudinal cross-sectional view of the mounting apparatus based on FIG. It is two figures explaining the operation principle of the mounting apparatus by FIG.
FIG. 1 shows a drive system mounting device 10 for a commercial vehicle with a shaft 14 having a driving pinion 12, which is connected to a drive component in the form of a coupling flange 16 for torque resistance. In this case, the torque resistant connection between the coupling flange 16 and the shaft 14 is realized by the gear device 18, and when the commercial vehicle is driven by the internal combustion engine, the coupling flange 16 is connected via the gear device. Torque can be transmitted to the shaft 14 which in turn drives the rear axle differential gear via the driving pinion 12.
The shaft 14 is supported in a partially shown housing 20 by a first taper roller bearing 22 and a second taper roller bearing 24, which are mounted in an O-shaped arrangement. It has been. The coupling flange 16 and the tapered roller bearings 22 and 24 are in this case included in the mounting device 10.
The taper roller bearing 22 includes a bearing outer ring 28 that is fixed in the housing 20 for torque resistance and a bearing inner ring 30 that is connected to the shaft 14 for torque resistance. The bearing outer ring 28 and the bearing inner ring 30 are supported on each other via a rotating body in the form of a tapered roller. The tapered roller bearing 22 further includes a cage 32 that holds the tapered rollers in position.
Similarly, for the tapered roller bearing 24, a bearing outer ring 34 fixed to the torque resistance in the housing 20, a bearing inner ring 36 connected to the shaft 14 for torque resistance, and a rotating body in the form of a tapered roller. And a cage 38.
Since the bearing inner ring 30 of the tapered roller bearing 22 is connected to the shaft 14 by torque fitting or the like, the torque resistant connection between the bearing inner ring 36 of the tapered roller bearing 24 and the shaft 14 is connected to the gear device 40. It is realized by. In the case of the gear unit 40, the teeth of the shaft 14 mesh with the corresponding teeth of the gear sleeve 42 which is connected to the bearing inner ring 36 for torque resistance, for example by welding. This allows relative movement of the bearing inner ring 36 relative to the shaft 14 in the axial direction of the shaft 14 according to the directional arrow 44. In the radial direction of the shaft 14, a slide bush 46 is disposed between the bearing inner ring 36 and the shaft 14, and this slide bush reduces friction when the bearing inner ring 36 moves relative to the shaft 14. Minimized to allow the radial force of the bearing inner ring 36 to be transmitted to the shaft 14.
According to the direction arrow 44, in the axial direction of the shaft 14, an upset sleeve 48 is further arranged between the bearing inner ring 30 and the bearing inner ring 36, and this upset sleeve is On the one hand, it is supported by the bearing inner ring 30 and on the other hand it is supported by the bearing inner ring 36.
In the case of the mounting device 10, it is desirable that the axial force, i.e. the force acting in the axial direction of the shaft 14 according to the directional arrow 44, is transmitted without play, which means that the axial mounting device 10 or taper. Bearing preloading of the roller bearings 22 and 24 is required.
In this case, it is desirable to provide a large bearing preload, i.e. a large amount of axial force, provided by the internal combustion engine and fed into the shaft 14 via the coupling flange 16, while a low torque and In the case of moderate torque, it is desirable to reduce the bearing preload, which has a positive effect on the efficiency of the mounting device 10.
In order to generate such a tension of the bearing inner ring 36 against the bearing preload in response to the torque, i.e. the bearing outer ring 34 of the taper roll bearing 24, a tensioning device 50 is provided, As a result of the coupling flange 16 rotating relative to the bearing inner ring 36, the bearing inner ring 36 can apply a force in the axial direction of the shaft 14 according to the directional arrow 44, so It is possible to pull and this can generate the mentioned bearing preload.
The relative rotation of the coupling flange 16, which is also connected to the shaft 14 for torque resistance, relative to the bearing inner ring 36 connected to the shaft 14 for torque resistance, in this case, is such that torque is transmitted via the coupling flange 16. The portion of the shaft 14 that is fed in is rotated by the elasticity of the shaft 14 relative to the portion of the shaft 14 that is arranged downstream in the direction of torque flow. That is, this means that the portion of the shaft 14 where the coupling flange 16 and the shaft are connected rotates relative to the portion where the bearing ring 36 is disposed, and this relative rotation is This is performed according to the amount of torque to be fed. Therefore, when the torque is large, a large relative rotation is performed. When the torque is small, the relative rotation is small and may not occur.
This relative rotation about the axis of rotation of the shaft 14 occurs in the movement of the bearing inner ring 36 or when the bearing inner ring applies a force in the axial direction of the shaft 14, in which case the tensioning device 50 is A substantially beveled control part 52 integrally formed with the coupling flange 16 and a corresponding bearing inner ring assigned to the bearing inner ring. , And a substantially beveled actuating part 54, which is formed in a single piece, and the control part 52 and the actuating part 54 interact via respective cylinder rollers 56.
In this case, the control component 52 is arranged in front of the coupling flange 16 facing the bearing inner ring 36, while the actuating component 54 is in front of the bearing inner ring 36 assigned to the coupling flange 16. Has been placed. In conjunction with FIG. 3, when the coupling flange 16 and the control component 52 rotate relative to the bearing inner ring 36 and the actuating component 54, the cylinder roller 56 has a beveled shape of the control component 52 and the actuating component 54. It turns out that the control part 52 and the actuating part 54 move relative to each other by rotating relative to each other. The control part 52 is supported in the axial direction of the shaft 14 by the coupling flange 16, and the bearing inner ring 36 is also provided in the axial direction of the shaft 14 by the tapered roller and the bearing outer ring 34 in the corresponding shoulder of the housing 20. As a result, a force is generated in the axial direction of the shaft 14 from this tension.
In this case, the amount of this tension and the amount of this axial force that generates the bearing preload depends on how much the cylinder roller 56 has moved along the corresponding side of the beveled control component 52 or actuating component 54. This depends on the amount of relative rotation of the coupling flange 16 relative to the bearing inner ring 36. Furthermore, this depends on the amount of torque that is fed. The greater the torque, the greater the relative movement of the cylinder roller 56 with respect to the beveled side and the greater the bearing preload. This means that a very high bearing preload results from a very high torque. As the torque is reduced, the relative rotation between the coupling flange and the bearing inner ring 36 is also reduced, thus reducing the bearing preload.
The axial force formation indicated by the directional arrow 59 (the relative rotation of the coupling flange 16 relative to the bearing inner ring 36 is indicated by the directional arrow 60) is such that the axial movement of the bearing inner ring 36 relative to the shaft is Encouraged by being promoted by the aforementioned slide bush 46, this allows the force sent to the bearing inner ring 36 to be diverted at least almost completely to the bearing preload. As already mentioned, the gear unit 40 also allows the relative movement of the bearing inner ring 36 relative to the shaft 14.
FIG. 2 shows this state again. In this case, the cylinder roller 56 passes at least substantially parallel to the radial direction of the shaft 14 according to the directional arrow 62, similar to the sloped shape of the control component 52 or the actuating component 54. In this regard, of course, a plurality of cylinder rollers 56 can be provided or a plurality of cylinder rollers 56 are provided, which are held in position by the corresponding cage and distributed in the peripheral direction of the shaft 14. Note that it is attached. In this case, a corresponding control part 52 or operating part 54 is assigned to each cylinder roller 56. The slope of the side surface of each bevel shape in this case determines the bearing preload according to the amount of axial force, ie the amount of relative rotation of the coupling flange 16 with respect to the bearing inner ring 36. In this case, the directional arrow 66 in FIG. 2 indicates the rotation of the shaft 14 and the feeding of the mentioned torque to the shaft 14 via the coupling flange 16.
DESCRIPTION OF SYMBOLS 10 Mount apparatus 12 Driving pinion 14 Shaft 16 Coupling flange 18 Gear apparatus 20 Housing 22 1st taper roller bearing 24 2nd taper roller bearing 28 1st taper roller bearing bearing outer ring 30 1st taper roller bearing Bearing inner ring 32 first taper roller bearing cage 34 second taper roller bearing bearing outer ring 36 second taper roller bearing bearing inner ring 38 second taper roller bearing cage 40 gearing 42 gear sleeve 44 Direction arrow 46 Slide bush 48 Upset sleeve 50 Tensioning device 52 Control part 54 Actuation part 56 Cylinder roller 58 Shoulder 59 Direction arrow 60 Direction arrow 62 Direction arrow 66 directional arrows
At least one shaft (14), a drive component (16) connected to the shaft (14) in a torque resistant manner, and at least one bearing ring (36) of the shaft (14), The ring is a mounting device (10) for a driving system of an automobile, in which a force can be applied in the axial direction (44) of the shaft by a tension device (50),
The bearing ring (36) applies a force in the axial direction (44) of the shaft (14) by the tensioning device (50) as a result of the relative rotation of the drive component (16) relative to the bearing ring (36). A mounting device, characterized in that
The tensioning device (50) is attached to the drive component (16) at least partially at least one control component (52) that is at least approximately beveled and corresponding to the bearing ring (36). And at least partly at least one actuating part (54) that is at least approximately beveled, said control part and said actuating part being at least one intermediate part (56), in particular rotating Mounting device (10) according to claim 1, characterized in that it interacts via a body (56).
The mounting device (10) according to claim 2, characterized in that the rotating body (56) is formed as a cylinder roller (56).
4. The control part according to claim 2, wherein the control part is arranged in front of the drive part facing the bearing ring. 6. Mounting device (10).
5. The actuating part (54) is arranged in front of the bearing ring (36) facing the drive part (16), according to claim 2. Mounting device (10).
The mounting device (10) according to any one of claims 2 to 5, characterized in that the respective bevel shape is formed at least approximately parallel to the radial direction (62) of the shaft (14). ).
7. The bearing ring (36) according to any one of the preceding claims, characterized in that the bearing ring (36) is arranged at least partly on the shaft (14) and is connected to the shaft in a torque resistant manner. Mounting device (10).
The mounting device (10) according to claim 7, characterized in that the bearing ring (36) is connected to the shaft (14) in a torque resistant manner by a gear device (40).
9. Mount according to claim 7 or 8, characterized in that the bearing ring (36) is movable relative to the shaft in the axial direction (44) of the shaft (14). Device (10).
In the radial direction of the shaft (14), a slide element (46), particularly a slide bush (46), is arranged between the shaft (14) and the bearing ring (36). The mounting device (10) according to any one of claims 7 to 9.
JP2012543487A 2009-12-17 2010-09-14 Bearing device for driving system of automobile Expired - Fee Related JP5592955B2 (en)
DE102009058560.5 2009-12-17
JP2013514501A true JP2013514501A (en) 2013-04-25
JP5592955B2 JP5592955B2 (en) 2014-09-17
JP2012543487A Expired - Fee Related JP5592955B2 (en) 2009-12-17 2010-09-14 Bearing device for driving system of automobile
JPH0571454A (en) * 1991-09-10 1993-03-23 Mitsubishi Electric Corp Starting motor having intermediate gear
EP2513502A1 (en) 2012-10-24
US7485061B2 (en) 2009-02-03 Drive train of hybrid vehicle
JP2007232217A (en) 2007-09-13 Dual clutch arrangement for dual clutch transmission
JP2010500942A (en) 2010-01-14 Tandem axle having two driveable axles and a drive transmission system that can be partially disengaged
DE10313351A1 (en) 2003-10-23 Actuator
WO2007012541A1 (en) 2007-02-01 Radially mobile bearing for a shaft pertaining to a steering system
JP2004514587A (en) 2004-05-20 Automotive four-wheel drive transfer
DE102008010131A1 (en) 2008-10-23 Roll stabilizer for a motor vehicle and housing for the roll stabilizer
CA1071436A (en) 1980-02-12 Planetary vehicle drives
KR101453114B1 (en) 2014-10-27 Device for actuating a gearwheel, which is designed as a loose wheel, of a transmission device
US6439583B1 (en) 2002-08-27 Actuator
US9216760B2 (en) 2015-12-22 Steering gear
EP2247867B1 (en) 2012-02-08 Actuating arrangement for shift elements of a transmission
JP5735094B2 (en) 2015-06-17 Helical gear device and electric auxiliary steering system
US7837587B2 (en) 2010-11-23 Electrohydraulic torque transfer device with integrated clutch and actuator unit
2013-11-30 RD02 Notification of acceptance of power of attorney
2014-02-05 A524 Written submission of copy of amendment under section 19 (pct)
Ref document number: 5592955