Source: https://patents.google.com/patent/JP2001206287A/en
Timestamp: 2020-08-06 08:21:27
Document Index: 554335365

Matched Legal Cases: ['Application No. 26', 'Application No. 26887978', 'art 36', 'art 36', 'arts 36', 'art 36', 'arts 36', 'application No. 2687078', 'art 38']

JP2001206287A - Stabiljzer for ship - Google Patents
Stabiljzer for ship
JP2001206287A
JP2001206287A JP2000385368A JP2000385368A JP2001206287A JP 2001206287 A JP2001206287 A JP 2001206287A JP 2000385368 A JP2000385368 A JP 2000385368A JP 2000385368 A JP2000385368 A JP 2000385368A JP 2001206287 A JP2001206287 A JP 2001206287A
JP2000385368A
JP4718680B2 (en
クレクス エドモン
Soc Technique Pour L'energie Atomique Technicatome
ソシエテ テクニク プール レネルジイ アトミク テクニカトム
2000-12-19 Application filed by Soc Technique Pour L'energie Atomique Technicatome, ソシエテ テクニク プール レネルジイ アトミク テクニカトム filed Critical Soc Technique Pour L'energie Atomique Technicatome
2001-07-31 Publication of JP2001206287A publication Critical patent/JP2001206287A/en
2011-07-06 Publication of JP4718680B2 publication Critical patent/JP4718680B2/en
239000003381 stabilizer Substances 0.000 claims abstract description 51
PROBLEM TO BE SOLVED: To provide a device for stabilizing a ship with a large ship ton by using plural devices. SOLUTION: This stabilizer mainly has a train of movable lead masses 12. This train is provided with a pair of jaws 16 for pressing lateral rails of a housing 3 at the respective ends thereof. A single cable 2 pulls the train and controls the paired jaws 16 to be opened and closed. A device for controlling the movement of the train and tension of the cable is disposed on one side of a ship. A winch 20 of one stabilizer can be connected to a winch of an adjacent stabilizer so as to compensate for a failure of the device. This stabilizer can be applied to a ship with a large gross tonnage such as an aircraft carrier or the like.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for stabilizing a ship having a large tonnage, such as an aircraft carrier, and more particularly to an apparatus for stabilizing a ship when it rolls and tilts.
2. Description of the Related Art French Patent Application No. 26 filed by the present applicant
No. 879,782 discloses a device for stabilizing a ship by circulating a series of solid ballasts in orbit, especially during rolling. Referring to FIG. 1 herein, in practice, the stabilizing member is constituted by two pairs or two sets of rollers 19 rolling on a track, for example, comprising two transverse rails 25,26. By means of a cable 4 driven by a motor 10 via a driven drum 9, the rollers 19 are movable from one side of the boat to the other. A block device 34 using two jaws (gripping portions) 37 is disposed between the two sets of rollers 19, and is controlled by the cable 4. The whole of these is connected to a jaw 34 against a central positioning rail 30 arranged longitudinally above the stabilizer.
Has been immobilized by closing. If no tension is applied to the cable, jaws 34 clamp central positioning rail 30. In this case, two transverse electric jacks 14 are also used to tension the cable, in which case the ends of the device are pulled via pulleys 5 attached to the pins of the jack. Several such stabilizers are mounted in parallel in the holds of the same vessel as part of a deck structure.
[0003] It can easily be seen that if tension is applied to the cable, the two jaws 37 will be separated from each other and the device will be free with respect to the central positioning rail 30. In that case, the pulling force of the cable 4
9 can be moved from one side or the other. If the tension is reduced, either intentionally or by a series of breaks in the cable 4, the clamping jaws 37 are automatically closed to the central positioning rail 30 in the closest position.
[0004] The block device used in the central part of this assembly, in other words between the two sets of rollers, requires a very reliable connection of the different moving masses constituted by the rollers. Similarly, the presence of the central block rail requires limiting the diameter of at least the central portion of the roller 19 to leave room for the positioning rail 30 to pass. Thus, the mass of the assembly is significantly reduced and the effectiveness of the blocking device is similarly reduced. In addition, since two electric jacks 14 and the movable pulley 5 on each side of the block device are arranged, their total length is inconvenient for the stabilizer.
SUMMARY OF THE INVENTION The object of the invention is therefore to propose a further stabilizer for ships,
The purpose is to remedy these disadvantages.
SUMMARY OF THE INVENTION To this end, the present invention mainly intends a marine ballast, especially for rolling, which comprises a plurality of movable wheels rolling on a track. A train of masses, a device for immobilizing the train, a cable for pulling the train and controlling the immobilization device, a drive for operating the cable, and the immobilization device And a device having two movable pulleys for adjusting the tension of the cable.
According to a main feature of the invention, the adjusting device comprises:
It includes a stationary pulley located on one side of the stabilizer and two movable pulleys controlled by a single jack, these two movable pulleys, along with the drive and jack, are located on opposite sides of the stationary pulley. Have been. In a preferred embodiment of the adjusting device, the two movable pulleys are elastically linked to each other, and a cable passes around the periphery of the two movable pulleys. The driving device is constituted by a winch disposed between the two movable pulleys, and a cable is wound around the drum of the winch.
[0008] Preferably, the two cables are fixed in opposite directions on the winch, and winding and feeding are performed alternately or simultaneously around the winch. Preferably, the jack is a hydraulic jack. In a main embodiment of the invention, the jack is resiliently connected to one of the two movable pulleys. Preferably, this jack can be controlled by a solenoid valve.
When considering a device for guiding the train laterally, that is to say a device with two transverse rails, the immobilization device essentially comprises a pair of jaws, each pair being controlled by one end of a cable. Is done. The respective jaws of each pair are separated from each other by an elastic member so as to be supported by the transverse rail, and the jaw opening is equal to two jaws of the jaws.
It is controlled by the tension of the cable on one end.
In this case, if the transverse rail has a standard I-section (IPN) defining two recesses with three inner surfaces, each pair of jaws will have three jaws supported by the three inner surfaces of the winch. It has a friction surface. If several stabilizers are used on the same ship, each winch will be provided with a device to temporarily connect the winch with the adjacent stabilizer so that in the event of a failure one of the winches will pull the other winch Is preferred.
In order to increase the efficiency of the stabilizer and in particular to optimize the compensating torque provided by the train of the moving mass, the moving mass is substantially mounted on a small wheel rolling on a track. It is preferable that the lead mass is formed of a parallelepiped-shaped lead mass. If the train had to be housed in a metal housing due to the specific requirements of a large tonnage ship, the tracks on which the moving masses rolled were mounted transverse to the ship's axis. , Constituted by the inner surface of the bottom wall of the housing.
BRIEF DESCRIPTION OF THE DRAWINGS The invention and its various technical characteristics will be better understood from the following description with reference to the accompanying drawings, in which: FIG. Referring to FIG. 2, the stabilizer of the present invention comprises:
It is mounted laterally in a ship, schematically represented by a transverse wall 5. The metal housing 3 is therefore mounted laterally on the deck of the ship or on the ceiling below the deck. The inner surface 7 of the bottom wall 8 of the housing 3 serves as a train trajectory for a movable mass housed inside the housing. This train includes several wagons each composed of a lead mass 12 mounted on a small wheel 13 rolling on the inner surface 7 of the bottom wall 8 of the housing 3. The wagons thus configured are connected to each other by connecting hooks 15 attached between the lead masses 12. A pair of jaws 16 are located at each end of the train to open and close the jaws and the housing 3.
The train is immobilized by pressing against the side wall of the train. These two pairs of jaws 16 thus constitute a device for immobilizing the train at a predetermined point in the housing 3. The use of two pairs of jaws 16, one at each end of the train, allows the immobilization devices to be balanced so that if one of the two pairs of jaws 16 fails, Additional features are obtained, which guarantee extra security.
The cable 2 pulls the train, but also controls the operation of two pairs of jaws 16. Cable 2
On the right side, it is wrapped around a hull of the vessel, for example a stationary pulley 17 fixed to the lateral wall 5. On the left, the cable 2 is a winch 2 arranged between two movable pulleys 21
0 through the control assembly. Winch 20
Allows the control of the train movement by the cable by pulling the cable 2 to one or the other. The two movable pulleys 21 enable the cable to operate the two pairs of jaws 16 by controlling the tension of the cable 2. The details of this control assembly will be described later with reference to FIG.
Referring to FIG. 3, it can be seen that the cable 2, the pair of jaws 16, and the train are interconnected. The end of the cable 2 is directly attached to the jaw control unit 22 via a shoulder 23 which becomes a connection portion with a gripping tool in the case of breakage of the cable 2. The two jaws 24 fixed to the lead mass 12 at the end of the train
6 are mounted so as to rotate around the center. A strong spring 27 keeps the two jaws 24 open at all times, whereby each jaw 24 is pressed against the inner lateral wall surface 39 of the housing. The lead masses 12 are connected to each other by connecting hooks 15. The hook preferably comprises two slightly pivotable heads 29, each head being fitted in a connection hole 30 in the lead mass 12.
On the other hand, when the two movable pulleys 21 of FIG. 2 operate simultaneously to change the tension of the cable, that is, when the traction force is applied to the two ends of the two strand portions of the cable 2, the traction force is: Acts on each pair of jaws 16. Indeed, when the cable applies a balanced pulling force at both ends of the train, the train becomes immobile, while the jaw control 22 causes the two jaws 24 of the same pair of jaws 16 to be connected via the connecting rod 32. Apply traction. This causes the connecting rods 32 to close each other by compressing the springs 27 and then the winch is connected to the two
It acts to control the movement of the train by pulling one of the strands. As the winch 20 pulls the cable 2 and applies traction to one side of the train, the train is pulled and rolls inside the housing 3 to move. Thereby, the whole lead mass body 12 moves from one place to another place, and the ship is stabilized in the lateral direction.
Referring to FIG. 5, when the housing lateral walls are preferably each formed of an IPN-type I-shaped member and the height of the I-shaped member matches the inside height of the housing containing the train, the jaws are formed. It will be better understood how 24 can act on the inner surface 28 of the housing side wall. The I-shaped member 35 has two concave portions, respectively.
One of the recesses forms the lateral wall inner surface 28. The inner surface 28 has three parts, one vertical inner surface 28A.
And two inclined inner surfaces 28B at the top and bottom of the I-section.
And consists of Correspondingly, each jaw 24
The three planes, one vertical plane 26A and the vertical plane 26A
A has two inclined surfaces 26B that form outer surfaces corresponding to the inner surface 28 of the concave portion of the I-shaped member 35 on both sides of A. Thus, each jaw 24 is maximized because the largest portion of the outer surface 26 acts on the inner lateral wall surface 28 of the housing. FIG.
2 shows a total of four connecting rods 32. The pivot axis of the jaw that pivots with respect to the control unit 22 of FIG. 3 is schematically indicated by a dashed straight line.
3 and 6, it will be noted that the shape of each lead mass 12 is a parallelepiped. It should be particularly noted that the dimensions of each lead mass 12 are primarily defined by the volume of the housing 3 defined by the inner surfaces 7,34 of the top and bottom walls and the inner surface 28 of the I-section 35. This is a point corresponding to the dimensions. As a result, the largest part of the volume of the housing 3 is occupied by the lead mass 12, which is advantageous in terms of weight compared to the device described in French Patent Application No. 26887978 mentioned in the paragraph describing the prior art. Indeed, in the prior art, the provision of the central rail 30 significantly reduces the space occupied by the movable mass. In addition, when the special specification of steel as a rail material is taken into consideration, there is a technical problem in fixing the rail 30, particularly in terms of welded characteristics, and the reduction in size due to the tightening effect is ignored. This produces an unacceptable level of distortion.
FIG. 6 shows that the small wheel 13 of each movable mass body 12 rests on the downwardly inclined inner surface 28 A of the inner surface 28 of the I-shaped member 35. The inclined inner surface helps the movable mass to be automatically centered in the housing. Finally, it should be noted that the cable 2 is located below the lead mass 12 and above the bottom wall inner surface 7 of the housing 3. FIG. 4 is a detailed view of the control assembly of the cable 2. It can be seen that at the end of the train, more particularly at the end of the trailing lead mass 12, a pair of jaws 16 and their supports 22 and shoulders 23 are mounted. The first strand 2A of the cable is fixed to the shoulder 23. The first strand 2A passes over the periphery of a first movable pulley 21A mounted on a first translation cart 36A rotatably mounted on the floor and translatably in the horizontal direction.
The second strand 2B of the cable passes below the train and terminates on the other side. The second strand 2B comprises a second movable pulley 21 mounted on a second translation cart 36B which is also arranged to roll on the floor.
It passes through the periphery of B. Two translation carts 36A, 36B
Are elastically connected via a first spring 38A.
However, one cart, in this case the second cart 36B,
It is elastically connected to the movable rod 41 of the fixed hydraulic jack 40. On the cart side, the two strands 2A, 2B are wound around the winch 20A in the path between the first movable pulley 21A and the second movable pulley 21B. Regardless of the position of the winch 20A with respect to the two movable pulleys 21A, 21B, the cable 2 is designed to withstand the pulling caused by securing the two strands 2A, 2B of the cable 2 to the lead mass train.
Must be set so that it can be wound around the periphery of these two movable pulleys 21A and 21B by one-fourth or more.
The hydraulic jack 40 has its movable rod 4
It is easily understood that pushing one in the direction of the two translation carts 36A, 36B would cause the two strands 2A, 2B to be pulled under tension at the fixed part to the movable train. Thus, the two pairs of jaws 16 are pulled under tension and closed together, allowing the movable train of the lead mass 12 to translate freely. In that case, the winch 20A performs the control function for the translation of the train, and the train is no longer immobilized in the housing 3. It should also be noted that the hydraulic jack is controlled by a valve that opens when no power is supplied, for example a three-way switching valve. In other words, the release of the two strands 2A, 2B of the cable occurs when the current is cut off and the valve is opened. This enhances the overall stability of the stabilizer as compared to a tensioning device that uses an electric jack and requires power to release the two strands 2A, 2B of the cable. In this case, the pulling of the cable 2, that is, the release of the train, is performed by activating the hydraulic jack 40 by the operation of the valve 42.
By using the hydraulic jack 40, the mass of the control device can be reduced as compared to the control device provided in the device of the above-mentioned patent application No. 2687078. The bearing force generated by the hydraulic jack 40 is independent of the position of the movable rod 41 of the jack and only depends on the working pressure and the constant piston cross section of the jack. The tension of the two strands of cable is
Can be directly monitored. In this case, cable 2
The control assembly is located on one side of the train, in other words, on one side of the vessel, both for movement and pulling. The only member of this assembly that is located on the other side is the stationary pulley, designated by the numeral 17 in FIG.
FIG. 4 shows a second control assembly, which is the same as the control assembly shown by a solid line, by a dashed line. This assembly is a control assembly of the same stabilizer located next to the previously described stabilizer. As a matter of fact, in order to be effective on large gross tonnage ships several stabilizers of the invention must be used. In practice, it is preferable to arrange four or five stabilizers according to the invention at the bow and stern, respectively. It should be noted that this stabilizer can move ten lead masses 12, each about 2 tons. Therefore, by using the ten stabilizers of the present invention, on a single vessel, two
The weight of 00 tons is freely available.
In addition, if one of the ten stabilizers fails, the winch 20A or 20B is connected to the adjacent stabilizer winch 20A or 20B via the temporary connecting member 50. You. The temporary connecting member 50 is schematically indicated by a broken line, and includes two winches 20A, 20A.
B is linked. As described above, the winch of the failed stabilizer can be driven at a reduced speed by being activated in connection with the winch of the adjacent stabilizer. This is particularly useful if the moving mass of the train of the failed stabilizer is on one side. Indeed, in that case, the adjacent stabilizer can continue to move the train due to the temporary connection between one winch and the other winch, and can position the failed train in the center of the vessel.
It should be noted that if one of the strands 20A or 20B of the cable 2 is broken,
The corresponding pair of jaws can no longer be activated and the jaws remain locked with the jaws separated, so that the train is locked in that position. Needless to say, this is a safety measure. As shown in FIG. 7, the strands 2A and 2B of the cable 2 are respectively wound around a part of the peripheral surface of the winch 20. In addition, each end 43 of each strand 2A, 2B is fixed on the winch via, for example, a bolt 44 and a baffle 45 that grips the end 43 of the strand. In other words, winch 20
Cylindrical surface of the two strands 2A, 2 of the cable
Reserved for winding each of B.
As shown in FIG. 8, it is preferable to provide two grooves 46 adapted to receive the cable strands 2A and 2B, respectively. In addition, when each end 43 of the two strands 2A and 2B is fixed to one end of the cylindrical body constituting the winch 20, the groove 46 may be considered to be common to the strands 2A and 2B. In practice, during the rotation of the winch 20, the two strands 2A, 2A
If one of B is wound, the other will be unwound, and vice versa, and the length of the groove 46 used is almost constant. Therefore, the place where the strand 2A is unwound becomes the winding place of the other strand 2B of the cable.
The volume of the tunnel formed by the housing 3 can be optimized by making the movable lead mass into a parallelepiped shape. By using a movable mass of this shape, a sufficient space, that is, a sufficient weight can be obtained. The efficiency of the stabilizer is thus increased. By placing a pair of jaws 16 at each end of the train,
Even if it is immobilized for a long time, there is no need to burden the connecting hooks of the train. This is quite advantageous, especially when the ship is in an inclined position. This also provides a precautionary measure against an accident in which one of the connecting hooks breaks.
The maintenance and control of the jaw pair 16 is relatively simple. Also, maintenance of the pair of jaws is much easier when compared to the central jaw 34 of the prior art stabilizer.
In fact, the central jaw 34 is virtually inaccessible because it is located in the center of the train and is surrounded by a housing. If one of the two strands of the cable breaks, the recovery of the train is relatively easy due to the shoulder between each strand 2A, 2B and the jaw support 22. The provision of two braking devices constituted by each pair of jaws 16 provides a safety measure, especially if one of the two strands breaks during operation of the movable train.
By juxtaposing two stabilizers of the present invention having winches 20A, 20B, each of which can be temporarily connected to one another, one of the stabilizers that has failed and has become stuck in a position dangerous to the balance of the ship is rescued. be able to. The lead mass 12 can move on the inclined surface of the standard I-shaped member 35 forming the lateral wall portion of the housing by the movable configuration including the four small wheels 13.
The pivotable or similar type of connecting hook 15 provides a movement between the lead masses 12 with a certain degree of freedom, in particular at an angle. By using a device with two movable pulleys constituting a two-stage pulling device and with a single hydraulic jack 40, the tension is applied to the two strands 2A, 2B of the cable without servo control of the position. And release the strand without supplying any energy. By winding the two strands 2A and 2B of the cable around the winch 20 as described above, winding using a reel can be avoided.
FIG. 1 is a bird's-eye view of a stabilizer according to the prior art.
FIG. 2 is a sectional view showing the entire stabilizer according to the present invention.
FIG. 3 is a horizontal sectional view of a pair of jaws used in an apparatus for immobilizing a train of a stabilizer according to the present invention;
FIG. 4 is a detailed view of the driving device and the device for adjusting the tension of the cable in the stabilizer according to the present invention.
5 is a side sectional view of the jaw shown in FIG.
FIG. 6 is a side sectional view showing one of the movable masses of the train of the stabilizer according to the present invention.
FIG. 7 is a schematic view showing the winding of a cable around a winch of a stabilizer according to the present invention.
FIG. 8 shows a winch of the stabilizer according to the invention.
2 Cable 3 Housing 5 Side Wall 7 Inner Surface of Housing Bottom Wall 8 Housing Bottom Wall 12 Lead Mass 13 Small Wheel 15 Connecting Hook 16 Jaw Pair 17 Stationary Pulley 20 Winch 21 Movable Pulley 22 Jaw Control Unit 23 Shoulder 24 Jaw 35 I-Shape Material 36 Translation cart 38 Spring 40 Hydraulic jack 45 Baffle 46 Groove
1. A stabilizing device for a ship, particularly when rolling, comprising a train comprising a plurality of movable masses rolling on a track, a device for immobilizing the train, and towing the train. And a cable (2) for controlling the immobilization device, a driving device for operating the cable (2), and a device for adjusting the tension of the cable (2) for controlling the immobilization device. An adjustment device having two movable pulleys for adjusting the tension of the cable (2), wherein the adjustment device is arranged on one side of the stabilizer (17). And two movable pulleys (21A, 21B) controlled by a single jack (40), which are located opposite the stationary pulley (17) together with the drive and the jack (40). Movable pulley (21
A, 21B).
2. The movable pulleys (21A, 21B) are elastically connected to each other, and the cable (2) is
The stabilizer according to claim 1, characterized in that it passes through the periphery of two movable pulleys (21A, 21B).
3. Stabilizer according to claim 2, characterized in that a first movable pulley (21B) is elastically connected to the jack (40).
4. A winch (20, 2) disposed between the two movable pulleys (21A, 21B).
0A, 20B).
The stabilizer according to claim 1.
5. The stabilizer according to claim 1, wherein the jack (40) is a hydraulic jack.
6. Stabilizer according to claim 5, characterized in that the hydraulic jack (40) is controlled by an unsupplied current solenoid valve (42).
7. A stabilizer according to claim 1, wherein the guide device for the train is two transverse profiles (35), the jaws (24) being arranged at each end of the train. A pair of jaws (24) spaced apart from the inner surface of the transverse rail and connected to one end of the cable (2), the tension of the cable (2) causing the pair of jaws (16) to A ballast, characterized in that the two jaws (24) have a pair of jaws (24) adapted to be closed together.
8. The two rails have a vertical inner surface (28).
A) an IPN standard I-section (35) with at least one internal recess consisting of A) and two inclined inner surfaces (28B), said jaws (24) comprising three friction surfaces,
That is, it has one vertical friction surface (26A) and two inclined friction surfaces (26B), and the three friction surfaces correspond to the three inner surfaces (28A, 28B) of the corresponding lateral rail (35).
8. The stabilizer according to claim 7, wherein each of the stabilizers is supported.
9. The movable mass body is constituted by a quasi-parallel hexahedral lead mass body (12), and is mounted on a small wheel (13) that rolls on a track. The stabilizer according to claim 1, wherein
10. The track according to claim 1, wherein the track is a metal housing.
Stabilizer according to claim 1, characterized in that it is constituted by an inner surface (7) of the bottom wall and is provided transversely to the axis of the ship.
11. The cable (2) has two strands (2A, 2B) having winches (20, 20A, 20B).
Mounted on top in the opposite direction, alternately and simultaneously,
3. The stabilizer according to claim 2, wherein the stabilizer is wound around the winch or extended.
12. Each winch (20A, 20B) has a coupling device (48) for temporarily coupling with a winch (20B, 20A) of an adjacent device, whereby either one of the winches is provided. In the event of failure, one winch can drive the other winch,
JP2000385368A 1999-12-20 2000-12-19 Ship stabilizer Expired - Fee Related JP4718680B2 (en)
JP2001206287A true JP2001206287A (en) 2001-07-31
JP4718680B2 JP4718680B2 (en) 2011-07-06
JP2000385368A Expired - Fee Related JP4718680B2 (en) 1999-12-20 2000-12-19 Ship stabilizer
EP2473400B1 (en) * 2009-09-04 2015-06-17 Itrec B.V. Offshore wind turbine installation
JPS4829347B1 (en) * 1966-09-16 1973-09-10
JPS4921193B1 (en) * 1969-09-09 1974-05-30
JPH09257096A (en) * 1996-03-25 1997-09-30 Tokimec Inc Anti-rocking device
EP2435352B1 (en) 2013-03-20 Traveling crane having traveler and hoisting winch
US9573605B2 (en) 2017-02-21 Continuous assist zipline braking and control system
CA1041474A (en) 1978-10-31 Overhead crane including a single failure proof hoist
EP2877394A1 (en) 2015-06-03 In-line mooring connector and tensioner
US7946560B2 (en) 2011-05-24 Crane hook block
AU2006211845B2 (en) 2011-04-28 Trolley and spreader assembly
EP2279978A1 (en) 2011-02-02 Drum tensioning method and apparatus for load hoist wire rope
CA2512743C (en) 2013-04-02 Amusement ride assembly and method
DE60201883T2 (en) 2005-12-01 Emergency braking device for a cable-taken or suspensed vehicle and vehicle with an emergency braking device
EP0917518A1 (en) 1999-05-26 Pulley-driven elevator
US20020061784A1 (en) 2002-05-23 Amusement device
KR20120060882A (en) 2012-06-12 Stationary track with gimbaled rider carriages amusement ride
JP4501064B2 (en) 2010-07-14 Stacker crane