Coupling, active stabilizer and vehicle

Abstract

The invention relates to a coupler, an active stabilizer and a vehicle. The coupler comprises a sleeve and a rotating shaft. A first transmission plate is arranged on the inner circumferential face of the sleeve, a second transmission plate is arranged on the outer circumferential face of the rotating shaft, the first transmission plate and the second transmission plate extend in the radial direction of the coupler, and the first transmission plate is used for abutting against the second transmission plate so that the sleeve and the rotating shaft can synchronously rotate. A sealing cavity is defined by the inner circumferential face of the sleeve and the outer circumferential face of the rotating shaft and used for containing a damping medium to buffer the impact force generated when the first transmission plate makes contact with the second transmission plate. The coupling comprises the sealing cavity, the damping medium is contained in the sealing cavity, the first transmission plate and the second transmission plate are subjected to damping force when the damping medium moves, and the damping force hinders the relative movement of the first transmission plate and the second transmission plate so as to buffer the abutting impact of the first transmission plate and the second transmission plate.

Description

Technical Field

[0001] The present application relates to the field of couplings, and in particular to a coupling, an active stabilizer and a vehicle. Background Art

[0002] The coupling is connected between two transmission shafts to transmit power.

[0003] When the coupling is working, the relative rotation speed of the internal components is relatively high, and the rigid contact between the components can easily lead to failure of the internal components of the coupling. Summary of the invention

[0004] In view of the above-mentioned technical problems, the purpose of the present application is to provide a coupling with a buffering effect, an active stabilizer including the coupling, and a vehicle including the coupling or the active stabilizer, which specifically include the following technical solutions:

[0005] In the first aspect, an embodiment of the present application provides a coupling, including a sleeve and a rotating shaft; a first transmission plate is provided on the inner circumference of the sleeve, and a second transmission plate is provided on the outer circumference of the rotating shaft, the first transmission plate and the second transmission plate extend in the radial direction of the coupling respectively, and the first transmission plate is used to abut against the second transmission plate to enable the sleeve and the rotating shaft to rotate synchronously; a sealed cavity is formed between the inner circumference of the sleeve and the outer circumference of the rotating shaft, and the sealed cavity is used to accommodate a damping medium to buffer the impact force of the contact between the first transmission plate and the second transmission plate.

[0006] The coupling of the present application includes a first transmission plate and a second transmission plate. During the relative rotation of the sleeve and the rotating shaft, the first transmission plate and the second transmission plate approach and abut against each other. After the abutment, the first transmission plate and the second transmission plate make the sleeve and the rotating shaft rotate synchronously to realize power transmission.

[0007] The coupling of the present application includes a sealed chamber containing a damping medium. The first transmission plate and the second transmission plate will be subjected to a damping force during the relative movement of the damping medium. The damping force will hinder the relative movement of the first transmission plate and the second transmission plate to buffer the impact of the first transmission plate and the second transmission plate against each other.

[0008] In one embodiment, the sleeve includes a plurality of first transmission plates evenly distributed along the circumference of the coupling, and the rotating shaft includes a plurality of second transmission plates evenly distributed along the circumference of the coupling. The plurality of first transmission plates and the plurality of second transmission plates are alternately arranged and spaced from each other along the circumference of the coupling.

[0009] In this embodiment, the multiple first transmission plates of the sleeve are evenly distributed, and the multiple second transmission plates of the rotating shaft are evenly distributed. When the first transmission plates and the second transmission plates abut against each other, the impact of relative movement can be dispersed between each pair of first transmission plates and second transmission plates abutting against each other. At the same time, combined with the damping force of the damping medium in the sealed cavity of the present application on the first transmission plate and the second transmission plate, the buffering effect of the damping medium can be improved, so that the coupling has higher reliability.

[0010] In one embodiment, the coupling comprises a first channel for connecting the gaps on both sides of the first transmission plate to allow the damping medium to flow; and / or the coupling comprises a second channel for connecting the gaps on both sides of the second transmission plate to allow the damping medium to flow.

[0011] In this embodiment, during the relative movement of the first transmission plate and the second transmission plate, the damping medium on one side of the first transmission plate can flow to the other side through the first channel, so that the damping medium flows in the opposite direction relative to the movement direction of the first transmission plate, thereby achieving the buffering effect of the damping medium on the first transmission plate. Similarly, the damping medium on one side of the second transmission plate can also flow to the other side through the second channel, so that the damping medium flows in the opposite direction relative to the movement direction of the second transmission plate, thereby achieving the buffering effect of the damping medium on the second transmission plate.

[0012] In one embodiment, along the axial direction of the coupling, the rotating shaft and the end cover of the sleeve are spaced apart from each other to form at least a portion of the first channel and / or the second channel.

[0013] In this embodiment, the rotating shaft and the end cover are spaced apart from each other along the axial direction of the coupling, so that the space between the rotating shaft and the end cover can connect both sides of the first transmission plate and / or both sides of the second transmission plate, thereby realizing the buffering effect of the damping medium on the first transmission plate and / or the second transmission plate.

[0014] In one embodiment, the first transmission plate and the outer circumference of the rotating shaft are spaced apart from each other in the radial direction of the coupling to form at least part of the first channel; and / or the second transmission plate and the inner circumference of the sleeve are spaced apart from each other in the radial direction of the coupling to form at least part of the second channel.

[0015] In this embodiment, the first transmission plate and the outer circumferential surface of the rotating shaft are spaced apart from each other along the radial direction of the coupling, which can be used to form at least a portion of the first channel, thereby realizing the buffering effect of the damping medium on the first transmission plate; similarly, the second transmission plate and the inner circumferential surface of the sleeve are spaced apart from each other along the radial direction of the coupling, which can be used to form at least a portion of the second channel, thereby realizing the buffering effect of the damping medium on the second transmission plate.

[0016] In one embodiment, the first transmission plate is provided with a first through hole, the first through hole is used to form at least a part of the first channel; and / or the second transmission plate is provided with a second through hole, the second through hole is used to form at least a part of the second channel.

[0017] In this embodiment, the first transmission plate is provided with a first through hole, and the two ends of the first through hole are respectively connected to the two sides of the first transmission plate, so that the damping medium flows in the opposite direction relative to the movement direction of the first transmission plate, thereby realizing the buffering effect of the damping medium on the first transmission plate. The second transmission plate is provided with a second through hole, and the two ends of the second through hole are respectively connected to the two sides of the second transmission plate, so that the damping medium flows in the opposite direction relative to the movement direction of the second transmission plate, thereby realizing the buffering effect of the damping medium on the second transmission plate.

[0018] In one embodiment, the first through hole and / or the second through hole includes a plurality of sub-holes, wherein: the plurality of sub-holes are arranged at intervals along the axial direction of the coupling; or the plurality of sub-holes are arranged at intervals along the radial direction of the coupling, and the sizes of the plurality of sub-holes decrease successively in the direction toward the rotation axis of the coupling.

[0019] In this embodiment, the multiple sub-holes of the first through hole and / or the second through hole are arranged at intervals along the axial direction of the coupling, so that the damping force generated when the damping medium passes through each sub-hole is equal, which is conducive to the long-term use of the first transmission plate and the second transmission plate. Similarly, the sizes of the multiple sub-holes decrease in the direction toward the rotation axis of the coupling, so that on the same first transmission plate or the second transmission plate, the size of the sub-hole with a smaller linear speed is smaller, so that the damping force on the multiple sub-holes is equal, which is also conducive to the long-term use of the first transmission plate and the second transmission plate.

[0020] In one embodiment, the rotating shaft includes a sealing section, which at least partially extends into the sealing cavity. The coupling includes a sealing ring. At least one of the outer circumference of the sealing section and the inner circumference of the sleeve is provided with a groove, and the groove is used to accommodate the sealing ring to seal the sealing section and the sleeve.

[0021] In one embodiment, at least one of the first transmission plate and the second transmission plate is provided with a receiving groove, and the receiving groove is used to receive part of the damping medium when the first transmission plate and the second transmission plate abut against each other, so as to reduce the resistance of the first transmission plate and the second transmission plate to reset.

[0022] In this embodiment, the sealing ring fills the groove on the outer circumferential surface of the sealing section and / or the inner circumferential surface of the sleeve, thereby improving the sealing performance between the sealing section and the sleeve and ensuring the sealing effect of the sealing cavity.

[0023] In one embodiment, the coupling includes at least one torsion spring connected between the sleeve and the rotating shaft for resetting the first transmission plate and the second transmission plate.

[0024] In this embodiment, the sleeve and the rotating shaft are elastically connected by a torsion spring, and the torsion spring is used to push the first transmission plate and the second transmission plate to reset when the first transmission plate and the second transmission plate abut against each other, so as to alleviate the impact of the coupling when the first transmission plate and the second transmission plate abut against each other.

[0025] In a second aspect, an embodiment of the present application further provides an active stabilizer, comprising a power output shaft, a stabilizer bar and the above-mentioned coupling, wherein one of the rotating shaft and the sleeve of the coupling is transmission-connected to the power output shaft, and the other is transmission-connected to the stabilizer bar.

[0026] In a third aspect, an embodiment of the present application further provides a vehicle, comprising the above-mentioned coupling; or comprising the above-mentioned active stabilizer.

[0027] When driving on a curve, the eccentricity causes the vehicle to roll. The power output shaft of the active stabilizer transmits power to the stabilizer bar through the coupling. The stabilizer bar balances the vehicle's roll, thereby improving the comfort of the vehicle.

[0028] It can be understood that because the active stabilizer and the vehicle of the present application adopt the above-mentioned coupling, in the process of the power output shaft transmitting power through the coupling, the damping medium will hinder the relative movement of the first transmission plate and the second transmission plate to buffer the impact of the first transmission plate and the second transmission plate against each other, and has a better buffering effect, thereby reducing the wear of components caused by the impact and avoiding failure of the coupling due to excessive impact, thereby having higher reliability and longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of a coupling provided in one embodiment of the present application;

[0030] Figure 2 A partial structural schematic diagram of a coupling provided in one embodiment of the present application;

[0031] Figure 3 A cross-sectional schematic diagram of a coupling provided in an embodiment of the present application from one viewing angle;

[0032] Figure 4 A cross-sectional schematic diagram of a coupling provided in an embodiment of the present application from another perspective;

[0033] Figure 5 A schematic structural diagram of a sleeve provided in an embodiment of the present application from one perspective;

[0034] Figure 6 A schematic structural diagram of a sleeve provided in an embodiment of the present application from another perspective;

[0035] Figure 7 This is a cross-sectional schematic diagram of a sleeve provided in one embodiment of the present application;

[0036] Figure 8 A structural schematic diagram of a rotating shaft provided in an embodiment of the present application from a viewing angle;

[0037] Fig. 9 A structural schematic diagram of a rotating shaft provided in an embodiment of the present application from another perspective;

[0038] Fig.10 A structural schematic diagram of a rotating shaft provided in an embodiment of the present application from another perspective;

[0039] Fig.11 This is a cross-sectional schematic diagram of a rotating shaft provided in an embodiment of the present application. DETAILED DESCRIPTION

[0040] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.

[0041] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be used to implement. The serial numbers for the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, include direct and indirect connections (couplings). The directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0042] An embodiment of the present application provides an active stabilizer, including a power output shaft, a stabilizer bar and a coupling, wherein one of a rotating shaft and a sleeve of the coupling is transmission-connected to the power output shaft, and the other is transmission-connected to the stabilizer bar.

[0043] An embodiment of the present application also provides a vehicle, including wheels, a power output shaft, a stabilizer bar and a coupling, wherein the stabilizer bar is connected to the wheels to limit the vehicle roll, one of the rotating shaft and the sleeve of the coupling is transmission connected to the power output shaft, and the other is transmission connected to the stabilizer bar; or the vehicle includes wheels and the above-mentioned active stabilizer, and the stabilizer bar of the active stabilizer is connected to the wheels to limit the vehicle roll.

[0044] The power output shaft of the active stabilizer transmits power to the stabilizer bar through a coupling, and changes the torque and twisting direction of the stabilizer bar to reduce the vehicle's roll, ensure that the vehicle body remains level, and improve vehicle safety.

[0045] For the above-mentioned power output shaft, in one embodiment, the power output shaft is the output shaft of the motor, and in another embodiment, the output shaft of the motor is drivingly connected to the reduction gearbox, and the power output shaft is the output shaft of the reduction gearbox.

[0046] See also Figure 1-Figure 4 ,in, Figure 1 A schematic structural diagram of a coupling 100 provided in an embodiment of the present application is shown; Figure 2 A partial structural schematic diagram of a coupling 100 provided in an embodiment of the present application is illustrated; Figure 3 A cross-sectional schematic diagram of a coupling 100 provided in an embodiment of the present application is shown in one viewing angle; Figure 4 A cross-sectional schematic diagram from another viewing angle of a coupling 100 provided in an embodiment of the present application is illustrated.

[0047] The coupling 100 of the present application includes a sleeve 10 and a rotating shaft 20 , wherein the inner circumference of the sleeve 10 and the outer circumference of the rotating shaft 20 together form a sealed cavity 12 .

[0048] Specifically, in one embodiment, Figure 1 and Figure 2 As shown, the sleeve 10 surrounds the outer periphery of the rotating shaft 20 at intervals. Figure 4 , a closed end cap 13 is provided at one end of the sleeve 10, and the end cap 13 forms the inner circumference of the sleeve 10 body into the inner cavity of the sleeve 10. The rotating shaft 20 extends into the inner cavity of the sleeve 10 from the end of the sleeve 10 away from the end cap 13, and the rotating shaft 20 includes a base 22. Along the axial direction of the coupling 100, the base 22 is at least partially located on the outside of the sleeve 10, and the base 22 shields and seals the end of the sleeve 10 away from the end cap 13, that is, the base 22 seals the inner cavity of the sleeve 10. The outer circumference of the rotating shaft 20 and the inner circumference of the sleeve 10 enclose to form a sealed cavity 12.

[0049] The inner circumference of the sleeve 10 of the coupling 100 of the present application is provided with a first transmission plate 11, and the outer circumference of the rotating shaft 20 is provided with a second transmission plate 21. The first transmission plate 11 and the second transmission plate 21 extend along the radial direction of the coupling 100 respectively, and the first transmission plate 11 is used to abut against the second transmission plate 21 to enable the sleeve 10 and the rotating shaft 20 to rotate synchronously.

[0050] Specifically, in one embodiment, Figure 2 and Figure 3As shown, along the circumference of the coupling 100, a plurality of first transmission plates 11 are evenly distributed and spaced from each other, and the plurality of first transmission plates 11 extend from the inner circumference of the sleeve 10 toward the outer circumference of the shaft 20 and abut against the outer circumference of the shaft 20. Along the circumference of the coupling 100, a plurality of second transmission plates 21 are evenly distributed and spaced from each other, and the plurality of second transmission plates 21 extend from the outer circumference of the shaft 20 toward the inner circumference of the sleeve 10 and abut against the inner circumference of the sleeve 10. Along the circumference of the coupling 100, the first transmission plates 11 and the second transmission plates 21 are alternately arranged and spaced from each other.

[0051] It can be understood that when the sleeve 10 and the rotating shaft 20 rotate relative to each other, the first transmission plate 11 moves toward one of the second transmission plates 21 on both sides. When the first transmission plate 11 and the second transmission plate 21 abut against each other, the rotating shaft 20 can drive the sleeve 10 to rotate synchronously, thereby realizing power transmission between the rotating shaft 20 and the sleeve 10.

[0052] The sealing chamber 12 of the coupling 100 of the present application is used to accommodate a damping medium to buffer the impact force of the contact between the first transmission plate 11 and the second transmission plate 21 .

[0053] Specifically, in one embodiment, Figure 2 and Figure 3 As shown, the first transmission plate 11 and the second transmission plate 21 divide the sealed cavity 12 into a plurality of sub-cavities, and the sub-cavities contain damping medium. During the relative movement of the first transmission plate 11 and the second transmission plate 21, the volume of the sub-cavity on one side of the movement direction of the second transmission plate 21 gradually decreases, and the volume of the sub-cavity on the other side gradually increases. The second transmission plate 21 is provided with a second through hole 211, and the second through hole 211 connects the sub-cavities on both sides, so that the damping medium in the sub-cavities on both sides can flow, and the flow direction of the damping medium is opposite to the movement direction of the second transmission plate 21. During the process of the damping medium passing through the second through hole 211, the second transmission plate 21 will be subjected to a damping force to reduce the movement speed of the second transmission plate 21, thereby reducing the impact when the first transmission plate 11 and the second transmission plate 21 are against each other.

[0054] The coupling 100 of the present application includes a first transmission plate 11 and a second transmission plate 21. During the relative rotation of the sleeve 10 and the rotating shaft 20, the first transmission plate 11 and the second transmission plate 21 approach and abut against each other. After the abutment, the first transmission plate 11 and the second transmission plate 21 make the sleeve 10 and the rotating shaft 20 rotate synchronously to realize power transmission.

[0055] In existing couplings, elastic materials are often used to cushion the impact of internal components. However, each time the internal components cooperate with each other, the elastic material needs to bear the impact and deform. As the use time increases, the durability of the elastic material decreases, and the elastic material inside the coupling is complicated to disassemble and difficult to replace. In addition, it is difficult to ensure the accuracy of the coupling after disassembly.

[0056] The coupling 100 of the present application includes a sealed chamber 12, which contains a damping medium. The first transmission plate 11 and the second transmission plate 21 will be subjected to a damping force when the damping medium moves. The damping force will hinder the relative movement of the first transmission plate 11 and the second transmission plate 21 to cushion the impact of the first transmission plate 11 and the second transmission plate 21 against each other.

[0057] It can be understood that the coupling 100 of the present application achieves buffering effect through damping medium, and the damping medium does not have the disadvantage of reduced service life due to multiple impact deformation, and can be suitable for longer working time and has higher reliability.

[0058] Likewise, since the coupling 100 of the present application has a long service life, there is no need to perform operations such as replacement and disassembly of the coupling 100 , thereby ensuring the accuracy of the coupling 100 .

[0059] The present application also relates to an active stabilizer. Since the active stabilizer adopts the coupling 100 of the present application, in the process of the power output shaft transmitting power through the coupling, the damping medium will hinder the relative movement of the first transmission plate 11 and the second transmission plate 21 to buffer the impact of the first transmission plate 11 and the second transmission plate 21. It has a good buffering effect, thereby reducing the wear of components caused by the impact and avoiding failure of the coupling caused by excessive impact, thereby having higher reliability and longer service life.

[0060] It should be pointed out that the coupling 100 of the present application can be used not only in active stabilizers, but also in other devices or systems that need to connect two shafts to transmit power. In addition, compared with other couplings, the device or system using the coupling 100 of the present application has better buffering effect, higher reliability and longer service life.

[0061] In one embodiment, the sleeve 10 includes a plurality of first transmission plates 11 evenly distributed along the circumference of the coupling 100, and the rotating shaft 20 includes a plurality of second transmission plates 21 evenly distributed along the circumference of the coupling 100, and the plurality of first transmission plates 11 and the plurality of second transmission plates 21 are alternately arranged and spaced from each other along the circumference of the coupling 100.

[0062] See also Figure 5-Figure 7 ,in, Figure 5 A schematic structural diagram of a sleeve 10 provided in an embodiment of the present application from one viewing angle is shown; Figure 6 A schematic structural diagram of a sleeve 10 provided in an embodiment of the present application from another perspective is shown; Figure 7 A cross-sectional schematic diagram of a sleeve 10 provided in an embodiment of the present application is illustrated.

[0063] In one embodiment, if Figure 5-Figure 7 As shown, along the circumference of the coupling 100, a plurality of first transmission plates 11 are evenly distributed and spaced from each other, and the plurality of first transmission plates 11 extend from the inner circumference of the sleeve 10 toward the outer circumference of the shaft 20 and abut against the outer circumference of the shaft 20, and a plurality of second transmission plates 21 extend from the outer circumference of the shaft 20 toward the inner circumference of the sleeve 10 and abut against the inner circumference of the sleeve 10. Figure 2 and Figure 3 , the multiple first transmission plates 11 of the sleeve 10 are evenly distributed, and the multiple second transmission plates 21 of the rotating shaft 20 are evenly distributed. When the first transmission plates 11 and the second transmission plates 21 abut against each other, the impact of relative movement can be dispersed between each pair of mutually abutting first transmission plates 11 and second transmission plates 21. At the same time, combined with the damping force of the damping medium in the sealing chamber 12 of the present application on the first transmission plates 11 and the second transmission plates 21, respectively, the buffering effect of the damping medium can be improved, so that the coupling 100 has higher reliability.

[0064] In other embodiments, the first transmission plate 11 and the second transmission plate 21 are unevenly distributed along the circumference of the coupling 100 , and the first transmission plate 11 can also abut against the second transmission plate 21 to achieve synchronous rotation between the sleeve 10 and the rotating shaft 20 .

[0065] In one embodiment, the coupling 100 includes a first channel, the first channel is used to connect the gaps on both sides of the first transmission plate 11 to allow the damping medium to flow; and / or the coupling 100 includes a second channel, the second channel is used to connect the gaps on both sides of the second transmission plate 21 to allow the damping medium to flow. During the relative movement of the first transmission plate 11 and the second transmission plate 21, the damping medium on one side of the first transmission plate 11 can flow to the other side through the first channel, so that the damping medium flows in the opposite direction relative to the movement direction of the first transmission plate 11, thereby achieving the damping effect of the damping medium on the first transmission plate 11. Similarly, the damping medium on one side of the second transmission plate 21 can also flow to the other side through the second channel, so that the damping medium flows in the opposite direction relative to the movement direction of the second transmission plate 21, thereby achieving the damping effect of the damping medium on the second transmission plate 21.

[0066] In one embodiment, the first transmission plate is provided with a first through hole, and the first through hole is used to form at least a portion of the first channel.

[0067] In another embodiment, the second transmission plate is provided with a second through hole 211, and the second through hole 211 is used to form at least a part of the second channel.

[0068] In the above two embodiments, the first through hole and the second through hole 211 can respectively connect the two sides of the first transmission plate 11 and the two sides of the second transmission plate 21, thereby achieving the buffering effect of the damping medium on the first transmission plate 11 and the second transmission plate 21 respectively.

[0069] In one embodiment, if Figure 3 As shown, the second transmission plate 21 is provided with a second through hole 211, and the second through hole 211 connects the sub-cavities on both sides. During the relative movement of the first transmission plate 11 and the second transmission plate 21, the volume of the sub-cavity on one side of the movement direction of the second transmission plate 21 gradually decreases, and the volume of the sub-cavity on the other side gradually increases, so that the damping medium flows in the opposite direction relative to the movement direction of the second transmission plate 21. The second transmission plate 21 will be subjected to a damping force to reduce the movement speed of the second transmission plate 21, thereby reducing the impact when the first transmission plate 11 and the second transmission plate 21 are against each other.

[0070] In another embodiment, the first transmission plate 11 is provided with a first through hole, which connects the sub-cavities on both sides, and the second transmission plate 21 is provided with a second through hole 211, which connects the sub-cavities on both sides, so that the damping medium between the first transmission plate 11 and the second transmission plate 21 flows in the opposite direction along the movement direction of the first transmission plate 11 and the second transmission plate 21, and the first transmission plate 11 and the second transmission plate 21 will both be subjected to the damping force to reduce the relative speed between the first transmission plate 11 and the second transmission plate 21, which can further reduce the impact when the first transmission plate 11 and the second transmission plate 21 are against each other.

[0071] In some embodiments, Figure 2 and Figure 3 As shown, a plurality of first transmission plates 11 extend from the inner circumference of the sleeve 10 toward the outer circumference of the rotating shaft 20 and abut against the outer circumference of the rotating shaft 20, and a plurality of second transmission plates 21 extend from the outer circumference of the rotating shaft 20 toward the inner circumference of the sleeve 10 and abut against the inner circumference of the sleeve 10, so that the sealing cavity 12 is divided into a plurality of sub-cavities, and the sub-cavities are independent of each other. The communication between the sub-cavities can be achieved through the first through hole of the first transmission plate 11 and / or the second through hole 211 of the second transmission plate 21, thereby reducing the impact when the first transmission plate 11 and the second transmission plate 21 abut against each other.

[0072] In one embodiment, if Figure 2 As shown, the rotating shaft 20 includes a sealing member 23 , which is located at one end of the second transmission plate 21 facing the inner circumference of the sleeve 10 , and is used to achieve sealing between the second transmission plate 21 and the inner circumference of the sleeve 10 , thereby achieving separation of the sealing chamber 12 .

[0073] In another embodiment, the sleeve 10 can also be provided with a seal 23, which is located at one end of the first transmission plate 11 facing the outer circumference of the rotating shaft 20, for achieving sealing between the first transmission plate 11 and the outer circumference of the rotating shaft 20, thereby achieving separation of the sealing chamber 12.

[0074] In one embodiment, the first transmission plate 11 and the outer circumferential surface of the rotating shaft 20 are spaced apart from each other in the radial direction of the coupling 100 to form at least a portion of the first channel, thereby achieving a buffering effect of the damping medium on the first transmission plate.

[0075] In another embodiment, the second transmission plate 21 and the inner circumference of the sleeve 10 are spaced apart from each other in the radial direction of the coupling 100 to form at least a portion of the second channel, thereby achieving a buffering effect of the damping medium on the second transmission plate.

[0076] In other embodiments, the first transmission plate 11 and the outer circumferential surface of the rotating shaft 20 are spaced apart from each other along the radial direction of the coupling 100, and the second transmission plate 21 and the inner circumferential surface of the sleeve 10 are spaced apart from each other along the radial direction of the coupling 100. At the same time, gaps are provided between the first transmission plate 11 and the outer circumferential surface of the rotating shaft 20 and between the second transmission plate 21 and the inner circumferential surface of the sleeve 10, which can further reduce the impact when the first transmission plate 11 and the second transmission plate 21 are against each other.

[0077] In one embodiment, the shaft 20 and the end cover 13 are spaced apart from each other along the axial direction of the coupling 100 to form at least a portion of the first channel and / or the second channel. The shaft 20 and the end cover 13 are spaced apart from each other along the axial direction of the coupling 100 so that the space between the shaft 20 and the end cover 13 can communicate with both sides of the first transmission plate 11 and / or both sides of the second transmission plate 21, thereby achieving a buffering effect of the damping medium on the first transmission plate 11 and / or the second transmission plate 21.

[0078] In one embodiment, the first through hole and / or the second through hole includes a plurality of sub-holes, wherein the plurality of sub-holes are arranged at intervals along the axial direction of the coupling, so that the damping force generated when the damping medium passes through each sub-hole is equal in magnitude, which is beneficial to the long-term use of the first transmission plate 11 and the second transmission plate 21.

[0079] It is understandable that sub-holes at different positions and sizes are subjected to damping forces of different magnitudes. When the damping forces applied to the first transmission plate 11 or the second transmission plate 21 are uneven, the first transmission plate 11 and the second transmission plate 21 may bend or even break, thereby affecting the normal use of the coupling 100.

[0080] In one embodiment, if Figure 4 As shown, the second through hole 211 includes a plurality of sub-holes, and the plurality of sub-holes are arranged at intervals along the circumference of the coupling 100, and each sub-hole has the same size. During the movement of the second transmission plate 21, the damping force generated when the damping medium passes through each sub-hole is equal in magnitude, so that the damping force on the second transmission plate 21 is relatively uniform, which is beneficial to the long-term use of the second transmission plate 21.

[0081] See also Figure 8-Figure 11 ,in, Figure 8A structural schematic diagram of a rotating shaft 20 provided in an embodiment of the present application from a viewing angle is shown; Fig. 9 A structural schematic diagram of another viewing angle of the rotating shaft 20 provided in one embodiment of the present application is illustrated; Fig.10 A structural schematic diagram of another viewing angle of the rotating shaft 20 provided in one embodiment of the present application is illustrated; Fig.11 A cross-sectional schematic diagram of a rotating shaft 20 provided in an embodiment of the present application is illustrated.

[0082] In one embodiment, the rotating shaft 20 includes a sealing section 221, the sealing section 221 at least partially extends into the sealing cavity 12, and the radius of the sealing section 221 is greater than or equal to the radius of the inner circumference of the sleeve 10. The sealing section 221 at least partially extends into the sealing cavity and the radius is greater than or equal to the radius of the inner circumference of the sleeve 10, thereby achieving sealing between the sealing section 221 and the sleeve 10.

[0083] In one embodiment, if Figure 8-Figure 11 As shown, the rotating shaft 20 includes a base 22 , and the base 22 is provided with a sealing section 221 . The sealing section 221 at least partially extends into the sealing cavity 12 . The radius of the sealing section 221 is equal to the radius of the inner circumference of the sleeve 10 to achieve sealing of the sealing cavity 12 .

[0084] In one embodiment, the coupling 100 includes a sealing ring, and at least one of the outer circumference of the sealing section 221 and the inner circumference of the sleeve 10 is provided with a groove, and the groove is used to accommodate the sealing ring, so that the sealing section 221 and the sleeve 10 are sealed. The sealing ring fills the groove on the outer circumference of the sealing section 221 and / or the inner circumference of the sleeve 10, improves the sealing performance of the sealing section 221 and the sleeve 10, and ensures the sealing effect of the sealing cavity 12.

[0085] In one embodiment, the coupling 100 includes at least one torsion spring, which is connected between the sleeve 10 and the rotating shaft 20 and is used to reset the first transmission plate 11 and the second transmission plate 21. The sleeve 10 and the rotating shaft 20 are elastically connected by the torsion spring, and the torsion spring is used to push the first transmission plate 11 and the second transmission plate 21 to reset when the first transmission plate 11 and the second transmission plate 21 abut against each other, so as to alleviate the impact of the coupling 100 when the first transmission plate 11 and the second transmission plate 21 abut against each other.

[0086] In one embodiment, at least one of the first transmission plate 11 and the second transmission plate 21 is provided with a receiving groove, and the receiving groove is used to receive part of the damping medium when the first transmission plate 11 and the second transmission plate 21 are in contact with each other, so as to reduce the resistance to the restoration of the first transmission plate 11 and the second transmission plate 21. The receiving groove can store the damping medium. On the one hand, the damping medium stored in the receiving groove can prevent the first transmission plate 11 and the second transmission plate 21 from being completely attached to each other; on the other hand, when the first transmission plate 11 and the second transmission plate 21 are completely attached to each other, the damping medium stored in the receiving groove can reduce the resistance to the restoration of the first transmission plate 11 and the second transmission plate 21.

[0087] In one embodiment, when the first transmission plate 11 and the second transmission plate 21 are in contact with each other, the first transmission plate 11 is completely fitted with the second transmission plate 21, and a receiving groove is provided on the side of the first transmission plate 11 facing the second transmission plate 21, and the receiving groove is communicated with the first through hole of the first transmission plate 11. When the first transmission plate 11 and the second transmission plate 21 are completely fitted with each other, the pressure difference of the damping medium on both sides of the first transmission plate 11 and the second transmission plate 21 is large, which will squeeze the first transmission plate 11 and the second transmission plate 21, making it difficult for the first transmission plate 11 and the second transmission plate to reset, and the receiving groove can accommodate part of the damping medium, thereby reducing the pressure of the damping medium on the first transmission plate 11 and the second transmission plate 21, which is conducive to the reset of the first transmission plate 11 and the second transmission plate 21.

[0088] In another embodiment, when the first transmission plate 11 and the second transmission plate 21 are abutted against each other, the accommodating groove is connected to the second through hole 211 of the second transmission plate, which can also reduce the pressure of the damping medium on the first transmission plate 11 and the second transmission plate 21, which is beneficial to the resetting of the first transmission plate 11 and the second transmission plate 21.

[0089] In another embodiment, the second transmission plate 21 is provided with a receiving groove, which can also reduce the pressure of the damping medium on the first transmission plate 11 and the second transmission plate 21 , and is beneficial to resetting the first transmission plate 11 and the second transmission plate 21 .

[0090] In another embodiment, when the first transmission plate 11 and the second transmission plate 21 are in abutment with each other, a gap is left between the two facing surfaces of the first transmission plate 11 and the second transmission plate 21, which can also reduce the pressure of the damping medium on the first transmission plate 11 and the second transmission plate 21, and is beneficial to resetting the first transmission plate 11 and the second transmission plate 21.

[0091] In one embodiment, the first transmission plate 11 is provided with a first reinforcement portion, which is located on the side of the first transmission plate 11 facing the inner circumference of the sleeve 10 , and the size of the first reinforcement portion along the circumference of the coupling 100 is larger than that of the first transmission plate 11 .

[0092] In another embodiment, a second reinforcement portion is provided on the side of the second transmission plate 21 facing the outer circumference of the rotating shaft 20 , and the size of the second reinforcement portion along the circumference of the coupling 100 is larger than the size of the second transmission plate 21 .

[0093] In the above two embodiments, the first reinforcement portion and the second reinforcement portion respectively increase the strength between the first transmission plate 11 and the sleeve 10 and between the second transmission plate 21 and the rotating shaft 20, thereby improving the reliability of the first transmission plate 11 and the second transmission plate 21.

[0094] In one embodiment, the sum of the size of the first transmission plate 11 and the size of the second reinforcement portion in the radial direction of the coupling 100 is smaller than the difference between the radius of the inner circumference of the sleeve 10 and the outer circumference of the shaft 20. The first transmission plate 11 avoids the second reinforcement portion to ensure the abutment between the first transmission plate 11 and the second transmission plate 21.

[0095] In another embodiment, the sum of the size of the second transmission plate 21 and the size of the first reinforcement portion in the radial direction of the coupling 100 is smaller than the difference between the radius of the inner circumference of the sleeve 10 and the outer circumference of the shaft 20. The second transmission plate 21 avoids the first reinforcement portion to ensure the abutment between the first transmission plate 11 and the second transmission plate 21.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A coupling, characterized in that: including a sleeve and a rotating shaft; A first transmission plate is provided on the inner circumference of the sleeve, and a second transmission plate is provided on the outer circumference of the rotating shaft. The first transmission plate and the second transmission plate extend in the radial direction of the coupling respectively, and the first transmission plate is used to abut against the second transmission plate so that the sleeve and the rotating shaft rotate synchronously; The inner circumference of the sleeve and the outer circumference of the rotating shaft together form a sealed cavity, and the sealed cavity is used to contain a damping medium to buffer the impact force of the contact between the first transmission plate and the second transmission plate.

2. The coupling according to claim 1, characterized in that: The sleeve includes a plurality of first transmission plates evenly distributed along the circumference of the coupling, and the rotating shaft includes a plurality of second transmission plates evenly distributed along the circumference of the coupling. The plurality of first transmission plates and the plurality of second transmission plates are alternately arranged and spaced from each other along the circumference of the coupling.

3. The coupling according to claim 2, characterized in that: The coupling comprises a first channel, wherein the first channel is used to connect the gaps on both sides of the first transmission plate to allow the damping medium to flow; and / or The coupling includes a second channel, and the second channel is used to communicate with the gaps on both sides of the second transmission plate to allow the damping medium to flow.

4. The coupling according to claim 3, characterized in that: Along the axial direction of the coupling, the rotating shaft and the end cover of the sleeve are spaced apart from each other to form at least a portion of the first channel and / or the second channel.

5. The coupling according to claim 3, characterized in that: The first transmission plate and the outer circumferential surface of the rotating shaft are spaced apart from each other in the radial direction of the coupling to form at least a portion of the first channel; and / or The second transmission plate and the inner circumferential surface of the sleeve are spaced apart from each other in the radial direction of the coupling to form at least a portion of the second channel.

6. The coupling according to claim 3, characterized in that: The first transmission plate is provided with a first through hole, and the first through hole is used to form at least a part of the first channel; and / or the second transmission plate is provided with a second through hole, and the second through hole is used to form at least a part of the second channel.

7. The coupling according to claim 6, characterized in that: The first through hole and / or the second through hole comprises a plurality of sub-holes, wherein: The plurality of sub-holes are arranged at intervals along the axial direction of the coupling; or The plurality of sub-holes are arranged at intervals along the radial direction of the coupling, and sizes of the plurality of sub-holes decrease sequentially along the direction toward the rotation axis of the coupling.

8. The coupling according to any one of claims 1 to 7, characterized in that: The rotating shaft includes a sealing section, which at least partially extends into the sealing cavity. The coupling includes a sealing ring. At least one of the outer circumference of the sealing section and the inner circumference of the sleeve is provided with a groove, and the groove is used to accommodate the sealing ring to seal the sealing section and the sleeve.

9. The coupling according to any one of claims 1 to 7, characterized in that: At least one of the first transmission plate and the second transmission plate is provided with a receiving groove, and the receiving groove is used to receive part of the damping medium when the first transmission plate abuts against the second transmission plate, so as to reduce the resistance of the first transmission plate and the second transmission plate to reset.

10. The coupling according to any one of claims 1 to 7, characterized in that: The coupling includes at least one torsion spring connected between the sleeve and the rotating shaft and used for resetting the first transmission plate and the second transmission plate.

11. An active stabilizer, characterized in that: It comprises a power output shaft, a stabilizer bar and a coupling according to any one of claims 1 to 10; One of the rotating shaft and the sleeve of the coupling is transmission-connected to the power output shaft, and the other is transmission-connected to the stabilizer bar.

12. A vehicle, characterized in that: A coupling comprising any one of claims 1 to 10; or Comprising the active stabilizer as claimed in claim 11.

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