Clutch device, steering system and vehicle

Abstract

The utility model discloses a clutch device, a steering system and a vehicle. The clutch device comprises a first transmission shaft and a second transmission shaft, the second transmission shaft sleeves a part of the peripheral surface of the first transmission shaft; the at least one clutch switching mechanism is arranged on the outer circumferential surface of the first transmission shaft, or the at least one clutch switching mechanism is arranged on the inner circumferential surface of the second transmission shaft; the power-on or power-off of the at least one clutch switching mechanism is suitable for decoupling or coupling the first transmission shaft and the second transmission shaft in the non-axial direction. Therefore, synchronous rotation of the first transmission shaft and the second transmission shaft can be instantaneously achieved, the number of parts can be reduced, time delay is avoided, the transmission has the advantages of being high in response speed, rapid coupling and decoupling of the first transmission shaft and the second transmission shaft can be achieved, axial space can be reduced, and the transmission has the advantages of being simple in structure and small in size.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and particularly to a clutch device, a steering system and a vehicle. Background Art

[0002] In the prior art, when the input shaft and the output shaft in a drive shaft assembly need to be connected and matched, the transmission process of the intermediate force needs to go through multiple transformations to drive the coupling, which prolongs the response time and lacks instantaneity. Moreover, there are many components between the input shaft and the output shaft. During the process of the input shaft transmitting power to the output shaft, the power of the input shaft needs to be transmitted to the output shaft through many components, which causes a problem of delay, cannot achieve instantaneous connection between the input shaft and the output shaft, affects the transmission efficiency of the drive shaft assembly, results in power transmission loss, and cannot achieve rapid decoupling and coupling between the input shaft and the output shaft. Additionally, the existing clutch device has a relatively complex structure, many components, high processing requirements, high manufacturing cost, and occupies a large space, which is not convenient for spatial layout. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the utility model is to provide a clutch device, which can instantaneously realize the synchronous rotation of a first drive shaft and a second drive shaft, can reduce the number of components, avoid delay, has the advantage of fast response speed, can also realize the rapid coupling and decoupling of the first drive shaft and the second drive shaft, and can also reduce the axial space, having the advantages of simple structure and miniaturization.

[0004] Therefore, the clutch device can instantaneously realize the synchronous rotation of the first drive shaft and the second drive shaft, can also reduce the number of components, avoid delay, has the advantage of fast response speed, can also realize the rapid coupling and decoupling of the first drive shaft and the second drive shaft, and can also reduce the axial space, having the advantages of simple structure and miniaturization.

[0005] The utility model further provides a steering system.

[0006] The utility model also provides a vehicle.

[0007] The clutch device according to the first aspect embodiment of the utility model includes: a first drive shaft; a second drive shaft sleeved on a partial outer peripheral surface of the first drive shaft; at least one clutch switching mechanism, with at least one of the clutch switching mechanisms disposed on the outer peripheral surface of the first drive shaft, or at least one of the clutch switching mechanisms disposed on the inner peripheral surface of the second drive shaft; and the energization or de-energization of at least one of the clutch switching mechanisms is adapted to decouple or couple the first drive shaft and the second drive shaft in a non-axial direction.

[0008] According to some embodiments of the present utility model, the clutch switching mechanism includes: a driver, which is disposed on the first transmission shaft and rotates with the first transmission shaft, or is disposed on the second transmission shaft and rotates with the second transmission shaft; a clamping member, which is circumferentially spaced from the driver along the first transmission shaft. When the driver is energized, a driving force is generated, and the driving force pushes the clamping member to move towards or away from the driver to control the disconnection or connection of the first transmission shaft and the second transmission shaft.

[0009] According to some embodiments of the present utility model, the clutch switching mechanism further includes: an elastic connecting member, which is disposed between the driver and the clamping member. The elastic connecting member is connected and cooperated with the clamping member. When the driver is powered off, the driving force is withdrawn, and the elastic connecting member generates an elastic force, which pushes the clamping member to move away from the driver to control the synchronous rotation of the first transmission shaft and the second transmission shaft. Alternatively, the elastic connecting member 22 is disposed between the first transmission shaft 10 and the clamping member 31, and the elastic connecting member 22 can be disposed between the second transmission shaft 40 and the clamping member 31.

[0010] According to some embodiments of the present utility model, the driver is an electromagnetic driver, and the magnetic force generated when the electromagnetic driver is energized serves as the driving force.

[0011] According to some embodiments of the present utility model, the driver includes: a magnet; an electromagnetic coil, which is disposed on the magnet.

[0012] According to some embodiments of the present utility model, there are a plurality of electromagnetic coils, and each electromagnetic coil is disposed around the magnet. The plurality of electromagnetic coils are circumferentially spaced along the length direction of the magnet.

[0013] According to some embodiments of the present utility model, the magnet includes along its length direction: a first section, a second section, and a third section. The second section is connected between the first section and the third section. The plurality of electromagnetic coils are respectively disposed around the first section and the third section; the second section extends along the axial direction of the first transmission shaft, the first section and the third section are parallel and perpendicular to the second section, and the end faces of the first section and the third section face the clamping member.

[0014] According to some embodiments of the present utility model, at least one side in the circumferential direction of the first transmission shaft is formed with an installation groove, and the clutch switching mechanism is disposed in the installation groove. The driver controls the decoupling or coupling of the first transmission shaft and the second transmission shaft in a non-axial direction by driving the clamping member to move in the installation groove.

[0015] According to some embodiments of the present utility model, it is characterized in that the included angle between at least one side surface of the installation groove and the groove bottom is an obtuse angle.

[0016] According to some embodiments of the present utility model, both the clutch switching mechanism and the installation grooves are provided in multiple numbers and are arranged in one-to-one correspondence, and the multiple installation grooves are arranged at intervals in the circumferential direction of the first transmission shaft.

[0017] According to some embodiments of the present utility model, the installation groove includes: an installation part and a movable part. The installation part forms the installation area of the driver and the elastic connecting piece, and the movable part forms the movable area of the clamping piece. The installation part and the movable part are arranged along the circumferential direction of the first transmission shaft.

[0018] According to some embodiments of the present utility model, along the circumferential direction of the first transmission shaft, the groove depth of the movable part gradually decreases from the installation part to the circumferential contact surface, and the circumferential contact surface is the outer circumferential surface of the first transmission shaft or the inner circumferential surface of the second transmission shaft.

[0019] According to some embodiments of the present utility model, the movable part includes: a first movable part and a second movable part. The first movable part and the second movable part are arranged on both sides of the installation part along the circumferential direction, and the driver is adapted to drive the clamping pieces in the first movable part and the clamping pieces in the second movable part to move in a direction close to the driver.

[0020] According to some embodiments of the present utility model, the clutch switching mechanism further includes: a mounting seat. The mounting seat is arranged on the installation part, the driver is arranged in the mounting seat, and an installation hole is formed on one side of the mounting seat facing the movable part, and the elastic connecting piece is arranged in the installation hole.

[0021] According to some embodiments of the present utility model, the mounting seat is a magnetic isolation material part, and the mounting seat and the first transmission shaft are injection molded.

[0022] According to some embodiments of the present utility model, a plurality of protrusions are arranged on the outer circumferential surface of the first transmission shaft corresponding to the mounting seat, and the plurality of protrusions are in concave-convex fit with the mounting seat.

[0023] According to some embodiments of the present utility model, the clamping piece is configured as a cylinder, and the clamping piece is a metal part or a magnetic part.

[0024] According to some embodiments of the present utility model, the first transmission shaft includes: a first shaft body; an annular flange, the annular flange is arranged on the first shaft body, and the clutch switching mechanism is arranged on the annular flange.

[0025] According to some embodiments of the present utility model, mounting grooves are formed on at least one side in the circumferential direction of the first transmission shaft, the clutch switching mechanism is disposed in the mounting grooves, and both ends of the mounting grooves are open along the axial direction of the first shaft body;

[0026] The clutch device further includes: a first stopper, the first stopper is sleeved on the first shaft body and disposed on both axial sides of the annular flange to be in stopper cooperation with the clutch switching mechanism at both ends of the mounting groove.

[0027] According to some embodiments of the present utility model, the second transmission shaft includes: a second shaft body; a sleeve, the sleeve is connected to one end of the second shaft body, a part of the first transmission shaft and the clutch switching mechanism are disposed in the sleeve, and the clutch switching mechanism controls the synchronous rotation of the first transmission shaft and the second transmission shaft by simultaneously contacting the sleeve.

[0028] According to some embodiments of the present utility model, the clutch device further includes: a first bearing, the first bearing is disposed in the sleeve, and one end of the first transmission shaft extending into the sleeve penetrates through the first bearing.

[0029] According to some embodiments of the present utility model, the clutch device further includes: a housing, the first transmission shaft and the second transmission shaft are disposed in the housing and respectively extend out of the housing.

[0030] According to some embodiments of the present utility model, the housing includes: a housing body, the housing body is provided with a first through hole, the second transmission shaft penetrates through the first through hole; an end cover, the end cover is disposed on the housing body, the end cover is provided with a second through hole, the first transmission shaft penetrates through the second through hole; a sealing member, the sealing member is disposed between the housing body and the end cover to seal the gap between the housing body and the end cover.

[0031] According to some embodiments of the present utility model, the housing is provided with a first stopper step, the first transmission shaft is provided with a second stopper step, the clutch device further includes: a second bearing, the second bearing is disposed in the housing body, the first transmission shaft penetrates through the second bearing, and one side of the second bearing is in stopper cooperation with the first stopper step and the second stopper step respectively; a second stopper, the second stopper is disposed on the housing; a third stopper, the third stopper is disposed on the first transmission shaft, and the other side of the second bearing is in stopper cooperation with the second stopper and the third stopper respectively.

[0032] According to some embodiments of the present utility model, the second transmission shaft is provided with a third stop step, the housing is provided with a fourth stop step, and the clutch device further includes: a third bearing, the second bearing is disposed in the housing, the second transmission shaft passes through the third bearing, and one side of the third bearing is in stop cooperation with the third stop step; a fourth stop member, the fourth stop member is disposed on the second transmission shaft, and the other side of the third bearing is in stop cooperation with the fourth stop step and the fourth stop member respectively.

[0033] According to some embodiments of the present utility model, the clutch device further includes: a first oil seal, the first oil seal is disposed on the housing, and the first transmission shaft passes through the first oil seal; a second oil seal, the second oil seal is disposed on the housing, and the second transmission shaft passes through the second oil seal.

[0034] The steering system according to the second aspect embodiment of the present utility model includes: the above-mentioned clutch device.

[0035] The vehicle according to the third aspect embodiment of the present utility model includes: the above-mentioned steering system.

[0036] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0038] Figure 1 is a cross-sectional view of the cooperation between the first transmission shaft and the second transmission shaft according to the embodiment of the present utility model;

[0039] Figure 2 is a schematic structural diagram of the decoupling of the first transmission shaft and the second transmission shaft according to the embodiment of the present utility model;

[0040] Figure 3 is a schematic structural diagram of the coupling of the first transmission shaft and the second transmission shaft according to the embodiment of the present utility model;

[0041] Figure 4 is a schematic structural diagram of the installation groove containing a magnet according to the embodiment of the present utility model;

[0042] Figure 5 is a schematic structural diagram of the first driving member according to the embodiment of the present utility model;

[0043] Figure 6 is a schematic structural diagram of the mounting seat containing mounting holes according to the embodiment of the present utility model;

[0044] Figure 7 is an exploded view of a clutch device according to an embodiment of the present utility model;

[0045] Figure 8 is a cross-sectional view of a second stop member according to an embodiment of the present utility model;

[0046] Figure 9 is a cross-sectional view of a third stop member according to an embodiment of the present utility model.

[0047] Reference numerals:

[0048] 200, clutch device;

[0049] 10, first transmission shaft; 11, movable part; 111, first movable part; 112, second movable part; 13, protrusion; 14, mounting groove; 15, first shaft body; 16, annular flange; 17, second stop step; 18, mounting part;

[0050] 20, driver;

[0051] 211, magnet; 212, electromagnetic coil; 213, first section; 214, second section; 215, third section; 22, elastic connecting piece; 23, mounting seat; 231, mounting hole;

[0052] 30, clutch switching mechanism; 31, clamping part;

[0053] 40, second transmission shaft; 41, second shaft body; 42, sleeve; 43, third stop step;

[0054] 50, first stop member;

[0055] 60, first bearing; 70, housing; 71, first stop step; 72, fourth stop step; 73, housing body; 74, end cover; 75, seal; 76, first through hole;

[0056] 80, second bearing; 81, second stop member; 82, third stop member; 83, third bearing; 84, fourth stop member; 85, first oil seal; 86, second oil seal. Detailed implementation manners

[0057] The embodiments of the present utility model will be described in detail below. The embodiments described with reference to the drawings are exemplary.

[0058] Next, reference is made to Figures 1-9 to describe the clutch device 200 according to an embodiment of the present utility model.

[0059] As Figure 1 and Figure 2As shown in the figure, the clutch device 200 according to the embodiment of the first aspect of the present invention includes: a first transmission shaft 10, a second transmission shaft 40, and at least one clutch switching mechanism 30. The second transmission shaft 40 is sleeved on a part of the outer peripheral surface of the first transmission shaft 10. At least one clutch switching mechanism 30 is arranged on the outer peripheral surface of the first transmission shaft 10, or at least one clutch switching mechanism 30 is arranged on the inner peripheral surface of the second transmission shaft 40. The energization or de-energization of at least one clutch switching mechanism 30 is adapted to decouple or couple the first transmission shaft 10 and the second transmission shaft 40 in a non-axial direction.

[0060] Specifically, in a traditional clutch device, when the input shaft and the output shaft need to be connected and cooperated, the intermediate force transmission process needs to go through multiple transformations to drive coupling, which prolongs the response time and lacks instantaneity. Moreover, there are many components between the input shaft and the output shaft. During the process of the input shaft transmitting power to the output shaft, the power of the input shaft needs to be transmitted to the output shaft through many components, resulting in a delay problem and unable to achieve instantaneous connection between the input shaft and the output shaft, affecting the transmission efficiency of the transmission shaft assembly and causing power transmission loss. Additionally, the input shaft and the output shaft of the traditional clutch device are decoupled or coupled in the circumferential direction, and the driver and the clamping member are arranged axially, resulting in a large axial space, which prolongs the time for transmitting power and thus cannot achieve instantaneous decoupling and coupling between the input shaft and the output shaft.

[0061] Therefore, the clutch device 200 mainly consists of a first transmission shaft 10, a second transmission shaft 40, and a clutch switching mechanism 30. The second transmission shaft 40 is sleeved on a part of the outer peripheral surface of the first transmission shaft 10, and a part of the outer peripheral surface of the first transmission shaft 10 is located inside the second transmission shaft 40. At least one clutch switching mechanism 30 is arranged on the outer peripheral surface of the first transmission shaft 10, which can reasonably utilize the space on the outer peripheral surface of the first transmission shaft 10 and enable the clutch switching mechanism 30 and the first transmission shaft 10 to form an integral body, thus facilitating the direct transmission cooperation between the first transmission shaft 10 and the second transmission shaft 40 through the clutch switching mechanism 30. Or, at least one clutch switching mechanism 30 is arranged on the inner peripheral surface of the second transmission shaft 40, which can reasonably utilize the space on the inner peripheral surface of the second transmission shaft 40, and the clutch switching mechanism 30 and the second transmission shaft 40 form an integral body, thus facilitating the direct transmission cooperation between the second transmission shaft 40 and the first transmission shaft 10 through the clutch switching mechanism 30 and also reducing the axial space, having the advantages of simple structure and miniaturization.

[0062] Further, the energization or de-energization of at least one clutch switching mechanism 30 is adapted to decouple or couple the first transmission shaft 10 and the second transmission shaft 40 in a non-axial direction. When de-energized, the clutch switching mechanism 30 can couple the first transmission shaft 10 and the second transmission shaft 40 simultaneously in a non-axial direction. When energized, the clutch switching mechanism 30 can decouple the first transmission shaft 10 and the second transmission shaft 40 in a non-axial direction.

[0063] Further, the first transmission shaft 10 can be used as an input shaft or an output shaft, and can be selected according to the actual situation.

[0064] Thus, the clutch device can instantaneously achieve the synchronous rotation of the first transmission shaft 10 and the second transmission shaft 40, can also reduce the number of components, avoid delay, has the advantage of fast response speed, can also achieve the rapid coupling and decoupling of the first transmission shaft 10 and the second transmission shaft 40, and can also reduce the axial space, having the advantages of simple structure and miniaturization.

[0065] According to some embodiments of the present invention, the clutch switching mechanism 30 includes: a driver 20, a clamping member 31, and an elastic connecting member 22. The driver 20 is disposed on the first transmission shaft 10, and the driver 20 rotates with the first transmission shaft 10, or is disposed on the second transmission shaft 40 and rotates with the second transmission shaft 40. The clamping member 31 is circumferentially spaced from the driver 20 along the first transmission shaft 10. When the driver 20 is energized, a driving force is generated. The driving force pushes the clamping member 31 to move in a direction close to or away from the driver 20, so as to control the disconnection or connection of the first transmission shaft 10 and the second transmission shaft 40. The elastic connecting member 22 is disposed between the driver 20 and the clamping member 31, and the elastic connecting member 22 is connected and cooperated with the clamping member 31. When the driver 20 is de-energized, the driving force is cancelled, and the elastic connecting member 22 generates an elastic force. The elastic force pushes the clamping member 31 to move in a direction away from the driver 20, so as to control the synchronous rotation of the first transmission shaft 10 and the second transmission shaft 40.

[0066] Wherein, in the working state, the clamping member 31 moves in a direction away from the driver 20 under the push of the elastic connecting member 22, so that the clamping member 31 can be in contact and cooperation with both the first transmission shaft 10 and the second transmission shaft 40 simultaneously, so as to control the synchronous rotation of the first transmission shaft 10 and the second transmission shaft 40, so as to instantaneously achieve the synchronous rotation of the first transmission shaft 10 and the second transmission shaft 40, and can also avoid delay, having the advantage of fast response speed. In the non-working state, that is, in the normal state, the driver 20 can directly disengage the clamping member 31 from the second transmission shaft 40, so that the decoupling of the first transmission shaft 10 and the second transmission shaft 40 can be instantaneously achieved. In this way, the rapid coupling and decoupling of the first transmission shaft 10 and the second transmission shaft 40 can be realized.

[0067] In addition, the elastic connecting member can be a spring. The electromagnetic suction force generated by the driver 20 adsorbs the clamping member 31 on the elastic connecting member 22. The elastic connecting member 22 undergoes elastic deformation under the extrusion of the clamping member 31. When the electromagnetic suction force of the driver 20 disappears, the elastic connecting member 22 can push the clamping member 31 away from the driver 20, so that the clamping member 31 can be disengaged from the second transmission shaft 40.

[0068] Furthermore, the driver 20 and the clamping member 31 are arranged on the outer periphery of the first transmission shaft 10 or the inner periphery of the second transmission shaft 40, thereby reducing the axial space.

[0069] According to some embodiments of the present invention, as Figure 2 shown, the driver 20 is an electromagnetic driver, and the magnetic force generated when the electromagnetic driver is energized is used as the driving force.

[0070] Among them, in the normal state, the electromagnetic driver is always in the energized state. In this way, the electromagnetic driver adsorbs the clamping member 31 to the driver 20 by the generated magnetic force, so that the clamping member 31 and the second transmission shaft 40 can be in a disengaged state, thereby realizing the decoupling of the first transmission shaft 10 and the second transmission shaft 40.

[0071] When in the working state, the electromagnetic driver is powered off and the magnetic force disappears. The driver 20 can instantaneously drive the clamping member 31 to be in contact and cooperation with both the first transmission shaft 10 and the second transmission shaft 40 at the same time, thereby realizing the rapid coupling of the first transmission shaft 10 and the second transmission shaft 40.

[0072] According to a specific embodiment of the present invention, as Figure 9 shown, the driver 20 includes: a magnet 211 and an electromagnetic coil 212, and the electromagnetic coil 212 is arranged on the magnet 211.

[0073] Specifically, the driver 20 is mainly composed of a magnet 211 and an electromagnetic coil 212. The electromagnetic coil 212 is arranged around the magnet 211. When the electromagnetic coil 212 is energized, the magnetic pole of the magnet 211 faces the electromagnetic coil 212. In this way, the magnet 211 generates an electromagnetic suction force, so that the clutch switching mechanism 30 can be adsorbed on the driver 20.

[0074] According to some embodiments of the present invention, as Figure 9 shown, there are multiple electromagnetic coils 212, and each electromagnetic coil 212 is arranged around the magnet 211. The multiple electromagnetic coils 212 are arranged at intervals along the length direction of the magnet 211.

[0075] Among them, the multiple electromagnetic coils 212 are arranged around the magnet 211, which can increase the electromagnetic suction force of the magnet 211. Moreover, the multiple electromagnetic coils 212 are arranged at intervals along the length direction of the magnet 211, so as to increase the electromagnetic suction force in the length direction of the magnet 211.

[0076] According to a specific embodiment of the present utility model, as Figure 9 shown, the magnet 211 includes along its length direction: a first section 213, a second section 214, and a third section 215. The second section 214 is connected between the first section 213 and the third section 215, and a plurality of electromagnetic coils 212 are respectively wound around the first section 213 and the third section 215.

[0077] Specifically, the first section 213, the second section 214, and the third section 215 in the magnet 211 are connected in sequence. Among them, one end of the second section 214 is bent and connected to the first section 213, and the other end of the second section 214 is bent and connected to the third section 215. In this way, the magnet 211 can form a U-shaped magnet 211, and the U-shaped magnet 211 can increase the magnetic field strength. Since the two magnetic poles of the U-shaped magnet 211 are relatively close, the magnetic field lines are more concentrated between the two magnetic poles, thereby enhancing the magnetic field strength. When the engaged part 31 to be adsorbed is located between the two magnetic poles of the U-shaped magnet 211, the action range of the magnetic field is wider and the adsorption force is stronger, which can make the U-shaped magnet 211 more stable and effective when adsorbing and fixing the clutch switching mechanism 30.

[0078] In addition, the gap between the two magnetic poles of the U-shaped magnet 211 can facilitate the placement of parts to be adsorbed or fixed, so as to reasonably utilize its space.

[0079] Furthermore, a plurality of electromagnetic coils 212 are respectively wound around the first section 213 and the third section 215. The first section 213 and the third section 215 are magnetic poles close to each other, and the first section 213 and the third section 215 respectively surround a plurality of electromagnetic coils 212, thereby further increasing the electromagnetic suction force of the magnet 211.

[0080] In addition, the magnet 211 can be not only set as a U-shaped magnet, but also set as a cylindrical magnet and a square magnet.

[0081] According to some embodiments of the present utility model, the first section 213 extends along the axial direction of the first transmission shaft 10. The first section 213 and the third section 215 are parallel, and the first section 213 and the third section 215 are perpendicular to the second section 214. The end faces of the first section 213 and the third section 215 face the engaged part 31.

[0082] Among them, the parallel setting of the first section 213 and the third section 215 can ensure that the first section 213 and the third section 215 have the same magnetic field strength. Moreover, the end faces of the first section 213 and the third section 215 face the engaged part 31, so that the end faces of the first section 213 and the third section 215 can both generate electromagnetic suction force on the engaged part 31. Through magnetic field superposition, the electromagnetic suction force on the engaged part 31 can be further improved.

[0083] According to some embodiments of the present utility model, the mounting seat 23 and the first transmission shaft 10 are injection molded together.

[0084] Among them, the mounting seat 23 and the first transmission shaft 10 are integrally injection molded, which can avoid subsequent assembly processes, thus saving production time and labor costs, and can also enable the driver 20 and the elastic connecting member 22 to rotate synchronously with the first transmission shaft 10.

[0085] According to some embodiments of the present utility model, the first transmission shaft 10 is provided with a plurality of protrusions 13 on the outer peripheral surface corresponding to the mounting seat 23, and the plurality of protrusions 13 are in concave-convex fit with the mounting seat 23.

[0086] Among them, the first transmission shaft 10 is provided with a plurality of protrusions 13 on the outer peripheral surface corresponding to the mounting seat 23, which can increase the contact area between the first transmission shaft 10 and the mounting seat 23, so that the mounting seat 23 and the first transmission shaft 10 can be connected more stably. Further, the first transmission shaft 10 is formed with a plurality of protrusions 13 on the outer peripheral surface corresponding to the mounting seat 23, which can increase the friction force between the mounting seat 23 and the first transmission shaft 10 and make their connection more firm. Or, the first transmission shaft 10 and the mounting seat 23 are connected by bonding, and a colloid is provided on the outer peripheral surface of the first transmission shaft 10 corresponding to the mounting seat 23. Due to the arrangement of the plurality of protrusions 13, the colloid can be stored, so that the first transmission shaft 10 and the mounting seat 23 can be connected and matched more stably and firmly.

[0087] According to some embodiments of the present utility model, the protrusion 13 is configured as a serrated shape. Among them, the protrusion 13 is a straight serrated shape. In this way, the serrated protrusion 13 can further increase the friction force between the mounting seat 23 and the first transmission shaft 10, so as to ensure that the mounting seat 23 and the first transmission shaft 10 are connected as a whole.

[0088] According to some embodiments of the present utility model, as Figure 2 shown, the driver 20 is an electromagnetic driver, and the mounting seat 23 is a magnetic isolation material part.

[0089] Among them, the driver 20 is set as an electromagnetic driver, so that the electromagnetic driver will generate electromagnetic force. The mounting seat 23 is set as a magnetic isolation material part, and the magnetic isolation material part can be made of nylon injection molding material parts or other magnetic isolation materials. In this way, the electromagnetic driver is arranged in the magnetic isolation material part, so as to prevent interference with the magnetic lines of force.

[0090] According to some embodiments of the present utility model, as Figure 8 shown, the clutch switching mechanism 30 further includes: a mounting seat 23, the mounting seat 23 is arranged on the mounting part 18, the driver 20 is arranged in the mounting seat 23, and a mounting hole 231 is formed on one side of the mounting seat 23 facing the movable part 11, and the elastic connecting member 22 is arranged in the mounting hole 231.

[0091] Among them, the mounting seat 23 is provided with a mounting hole 231. The mounting hole 231 is a circular long hole. The setting of the mounting hole 231 can facilitate the threading of the elastic connecting member 22, making it more stable, and can also facilitate the elastic connecting member 22 to generate a thrust on the clamping member 31 through the mounting hole 231.

[0092] According to some embodiments of the present invention, such as Figure 2 As shown, at least one side in the circumferential direction of the first transmission shaft 10 is formed with a mounting groove 14. The clutch switching mechanism 30 is arranged in the mounting groove 14. The driver 20 controls the movement of the clamping member 31 in the mounting groove 14, so as to control the decoupling or coupling of the first transmission shaft 10 and the second transmission shaft 40 in a non-axial direction.

[0093] Among them, the setting of the mounting groove 14 can provide a mounting position for the driver 20, the clamping member 31 and the elastic connecting member 22, so as to facilitate the movement of the clutch switching mechanism 30.

[0094] According to some embodiments of the present invention, the mounting groove 14 includes: a mounting portion 18 and a movable portion 11. The mounting portion 18 forms a mounting area for the driver 20 and the elastic connecting member 22, and the movable portion 11 forms a movable area for the clamping member 31. The mounting portion 18 and the movable portion 11 are arranged along the circumferential direction of the first transmission shaft 10.

[0095] Among them, the mounting groove 14 is mainly jointly surrounded by the mounting portion 18 and the movable portion 11 to form a mounting area and a movable area, so as to provide a mounting space for the mounting seat 23 and a movable area for the clamping member 31. Moreover, the mounting portion 18 and the movable portion 11 are communicated, so as to facilitate the connection and cooperation between the clamping member 31 and the elastic connecting member 22 in the mounting portion 18.

[0096] According to some embodiments of the present invention, the movable portion 11 includes: a first movable portion 111 and a second movable portion 112. The first movable portion 111 and the second movable portion 112 are arranged on both sides of the mounting portion 18 in the circumferential direction. The driver 20 is adapted to drive the clamping member 31 in the first movable portion 111 and the clamping member 31 in the second movable portion 112 to move in a direction close to the driver 20.

[0097] In this way, it can facilitate the driver 20 in the mounting portion 18 to simultaneously move the clamping members 31 in the first movable portion 111 and the second movable portion 112, so that the clamping members 31 in the first movable portion 111 and the second movable portion 112 both move in a direction close to the driver 20, so as to realize the decoupling of the clamping member 31 from the first transmission shaft 10 and the second transmission shaft 40 in a non-axial direction.

[0098] According to some embodiments of the present invention, such as Figure 2As shown, along the circumferential direction of the first transmission shaft 10, the groove depth of the movable portion 11 gradually decreases from the mounting portion 18 to the circumferential contact surface, and the circumferential contact surface is the outer peripheral surface of the first transmission shaft 10 or the inner peripheral surface of the second transmission shaft 40.

[0099] Among them, the groove depth of the movable portion 11 gradually decreases from the mounting portion 18 to the outer peripheral surface of the first transmission shaft 10, or the groove depth of the movable portion 11 gradually decreases from the mounting portion 18 to the inner peripheral surface of the second transmission shaft 10, so that a wedge-shaped space can be formed, which can make the engaging member 31 on the first transmission shaft 10 gradually contact and cooperate with the second transmission shaft 40 under the elastic thrust of the elastic connecting member 22. At this time, the outer diameter of the engaging member 31 is equal to the distance between the first transmission shaft 10 and the second transmission shaft 40. In this way, the engaging member 31 can realize the coupling of the first transmission shaft 10 and the second transmission shaft 40.

[0100] In some embodiments, the elastic connecting member 22 can be arranged between the first transmission shaft 10 and the engaging member 31, or the elastic connecting member 22 can be arranged between the second transmission shaft 40 and the engaging member 31. Specifically, when the clutch switching mechanism 30 is arranged on the first transmission shaft 10, one end of the elastic connecting member 22 is arranged on the surface of the movable portion 11 away from the mounting seat, and the other end of the elastic connecting member 22 is arranged on the engaging member 31. At this time, there can be the following situations: when the driving member is energized, a driving force is generated, and the driving force pushes the engaging member 31 to move in the direction close to the driver 20 to control the disconnection of the first transmission shaft 10 and the second transmission shaft 40; when the driving member is powered off, a driving force is generated, and the driving force pushes the engaging member 31 to move in the direction away from the driver 20 to control the connection of the first transmission shaft 10 and the second transmission shaft 40, so as to realize synchronous rotation.

[0101] When in the normal state, the clutch switching mechanism 30 is adsorbed on the elastic connecting member 22 and contacts the first transmission shaft. At this time, the outer diameter of the engaging member 31 is smaller than the distance between the first transmission shaft 10 and the second transmission shaft 40, so that the engaging member 31 can realize the decoupling of the first transmission shaft 10 and the second transmission shaft 40.

[0102] According to some embodiments of the present invention, as Figure 2 shown, the included angle between at least one side surface of the mounting groove 14 and the groove bottom is an obtuse angle. In this way, the moving range of the engaging member 31 can be increased, so that the engaging member 31 can be prevented from being unable to contact the second transmission shaft 40.

[0103] According to the specific embodiments of the present invention, as Figure 2As shown, there are multiple clutch switching mechanisms 30 and mounting grooves 14, and the clutch switching mechanisms 30 and the mounting grooves 14 are arranged in one-to-one correspondence. The multiple mounting grooves 14 are spaced apart in the circumferential direction of the first transmission shaft 10, and a driver 20 is arranged in each mounting groove 14.

[0104] Among them, the multiple clutch switching mechanisms 30 are evenly spaced along the circumferential direction of the first transmission shaft 10, so that the force between the first transmission shaft 10 and the second transmission shaft 40 can be evenly distributed. For example, six clutch switching mechanisms 30 are provided, and the six clutch switching mechanisms 30 are independent of each other. Among them, the mounting seats 23 are correspondingly provided in three, and there are corresponding clutch switching mechanisms 30 on both sides of each mounting seat 23. Moreover, two drivers 20 are arranged in each mounting seat 23. Each driver 20 is composed of an electromagnetic driver and an elastic connecting member. One driver 20 corresponds to one clutch switching mechanism 30. In this way, when one of them fails, the first transmission shaft 10 and the second transmission shaft 40 can still rotate synchronously.

[0105] According to some embodiments of the present invention, as Figure 2 shown, the driver 20 is arranged between two adjacent movable parts 11, and the driver 20 drives the engaging parts 31 in the two adjacent movable parts 11.

[0106] Among them, the driver 20 is located between two adjacent movable parts 11, which can reduce the distance between the driver 20 and the engaging part 31, thereby further reducing the action time between the driver 20 and the engaging part 31, and further improving its response speed.

[0107] According to some embodiments of the present invention, as Figure 1 shown, the first transmission shaft 10 includes: a first shaft body 15 and an annular flange 16. The annular flange 16 is arranged on the first shaft body 15, and the driver 20 is arranged on the annular flange 16.

[0108] Among them, the setting of the annular flange 16 can provide an installation position for the driver 20 and also reduce the distance from the second transmission shaft 40, thereby improving the connection efficiency between the first transmission shaft 10 and the second transmission shaft 40.

[0109] According to some embodiments of the present invention, as Figure 2 shown, along the axial direction of the first shaft body 15, both ends of the mounting groove 14 are open. The first transmission shaft assembly 100 further includes: a first stopper 50. The first stopper 50 is sleeved on the first shaft body 15, and the first stopper 50 is arranged on opposite sides of the annular flange 16, so as to be connected and cooperate with the engaging part 31 at both ends of the mounting groove 14.

[0110] Among them, the first stopper 50 can be a retaining ring, and the retaining ring blocks both open ends of the installation groove 14, which can prevent the clamping member 31 from rolling out, so that the clamping member 31 can be kept in the installation groove 14.

[0111] According to some embodiments of the present utility model, the clamping member 31 is configured as a cylinder, and the clamping member 31 is a metal member or a magnetic member. When there is a metal member near the clamping member, the clamping member 31 cannot be a magnetic member.

[0112] Specifically, the clamping member 31 can be set as a cylindrical roller. When the magnetic driving member is powered on, an electromagnetic suction force is generated. Under the action of the electromagnetic force, the six rollers are adsorbed on the elastic connecting member 22, compressing the elastic connecting member 22. At this time, a gap is maintained between the six rollers and the inner wall of the second transmission shaft 40, so that the first transmission shaft 10 and the second transmission shaft 40 are in a disengaged state, and the first transmission shaft 10 can rotate freely alone to achieve decoupling. When the magnetic driving member is powered off, the electromagnetic suction force immediately disappears. Under the thrust of the elastic connecting member 22, the rollers are immediately pushed into the active area in the installation groove 14, so that the six rollers can be in contact and cooperation with the inner wall of the second transmission shaft 40, and the first transmission shaft 10 and the second transmission shaft 40 are kept connected to achieve coupling. In this process, the magnetic driving member, that is, the electromagnet 211, generates a suction force to directly drive the rollers without an intermediate transfer, which has the advantage of fast response speed, and can also make the first transmission shaft 10 and the second transmission shaft 40 achieve instantaneous connection in any direction.

[0113] The clutch device 200 according to the second aspect embodiment of the present utility model includes: the first transmission shaft assembly 100 and the second transmission shaft 40 of the clutch device 200 in the above embodiment.

[0114] Among them, the first transmission shaft assembly 100 and the second transmission shaft 40 can achieve instantaneous coupling and can also achieve instantaneous unlocking.

[0115] According to some embodiments of the present utility model, as Figure 1 shown, the second transmission shaft 40 includes: a second shaft body 41 and a sleeve 42. The sleeve 42 is connected to one end of the second shaft body 41. A part of the first transmission shaft 10, the driver 20, and the clutch switching mechanism 30 are arranged in the sleeve 42. The clutch switching mechanism 30 controls the synchronous rotation of the first transmission shaft 10 and the second transmission shaft 40 by contacting the first transmission shaft 10 and the sleeve 42 at the same time.

[0116] Among them, a part of the first transmission shaft 10, the driver 20, and the clutch switching mechanism 30 are arranged in the sleeve 42, which can reduce the distance from the sleeve 42 and facilitate the direct contact and cooperation between the clutch switching mechanism 30 and the inner wall of the sleeve 42, thereby reducing the number of components.

[0117] According to some embodiments of the present utility model, as Figure 1 shown, the clutch device 200 further includes: a first bearing 60, the first bearing 60 is disposed within the sleeve 42, and one end of the first transmission shaft 10 extending into the sleeve 42 passes through the first bearing 60. Thus, it is convenient for the first transmission shaft 10 to rotate.

[0118] According to some embodiments of the present utility model, as Figure 1 shown, the clutch device 200 further includes: a housing 70, the first transmission shaft assembly 100 and the second transmission shaft 40 are disposed within the housing 70, and the first transmission shaft assembly 100 and the second transmission shaft 40 respectively extend out of the housing 70, so that it is convenient for the first transmission shaft assembly 100 and the second transmission shaft 40 to be in transmission connection with other components.

[0119] According to some embodiments of the present utility model, the housing 70 is provided with a first stop step 71, the first transmission shaft 10 is provided with a second stop step 17, and the clutch device 200 further includes: a second bearing 80, a second stop member 81 and a third stop member 82, the second bearing 80 is disposed within the housing 73, the first transmission shaft 10 passes through the second bearing 80, one side of the second bearing 80 is in stop fit with the first stop step 71 and the second stop step 17 respectively, the second stop member 81 is disposed on the housing 70, the third stop member 82 is disposed on the first transmission shaft 10, and the other side of the second bearing 80 is in stop fit with the second stop member 81 and the third stop member 82 respectively.

[0120] Wherein, the first transmission shaft 10 passes through the first bearing 60 and the second bearing 80, so as to ensure that the first transmission shaft 10 rotates more stably. The first stop step 71 can stop the outer ring of the second bearing 80, and the second stop step 17 can stop the inner ring of the second bearing 80, so as to limit the movement of the second bearing 80 in the direction of the second transmission shaft 40. The second stop member 81 and the third stop member 82 can be set as snap rings, the second stop member 81 can limit the movement of the outer ring of the second bearing 80 away from the second transmission shaft 40, and the third stop member 82 can limit the movement of the inner ring of the second bearing 80 away from the second transmission shaft 40. Thus, axial limitation of the second bearing 80 can be achieved, and the gap between the second bearing 80 and the second stop member 81 and the third stop member 82 can also be eliminated.

[0121] According to some embodiments of the present utility model, the second transmission shaft 40 is provided with a third stop step 43, the housing 70 is provided with a fourth stop step 72, and the clutch device 200 further includes: a third bearing 83 and a fourth stop member 84. The second bearing 80 is disposed within the housing 73. The second transmission shaft 40 passes through the third bearing 83. One side of the third bearing 83 is in stop cooperation with the third stop step 43. The fourth stop member 84 is disposed on the second transmission shaft 40. The other side of the third bearing 83 is respectively in stop cooperation with the fourth stop step 72 and the fourth stop member 84.

[0122] Wherein, the third stop step 43 can stop the inner ring of the third bearing 83 from moving towards the first transmission shaft 10, the fourth stop step 72 can stop the outer ring of the third bearing 83 from moving away from the first transmission shaft 10, the fourth stop member 84 can also be set as a snap ring, and the fourth stop member 84 can stop the inner ring of the third bearing 83 from moving away from the first transmission shaft 10. Thus, axial limitation of the third bearing 83 can be achieved, and the gap between the third bearing 83 and the fourth stop member 84 can also be eliminated.

[0123] According to some embodiments of the present utility model, the clutch device 200 further includes: a first oil seal 85 and a second oil seal 86. The first oil seal 85 is disposed on the housing 70. The first transmission shaft 10 passes through the first oil seal 85. The second oil seal 86 is disposed on the housing 70. The second transmission shaft 40 passes through the second oil seal 86.

[0124] Wherein, the first oil seal 85 seals the second bearing 80, thereby preventing leakage of lubricating oil at the second bearing 80. The second oil seal 86 seals the third bearing 83, thereby restricting leakage of lubricating oil at the third bearing 83.

[0125] According to some embodiments of the present utility model, as Figure 1 shown, the housing 70 includes: a housing body 73, an end cover 74, and a seal 75. The housing body 73 is provided with a first through hole 76. The second transmission shaft 40 passes through the first through hole 76. The end cover 74 is disposed on the housing body 73. The end cover 74 is provided with a second through hole. The first transmission shaft 10 passes through the second through hole. The seal 75 is disposed between the housing body 73 and the end cover 74, thereby sealing the gap between the housing body 73 and the end cover 74.

[0126] Wherein, the end cover 74 can be used to cover the housing body 73. The end cover 74 and the housing body 73 can be fixedly connected by threads. The seal 75 can be an O-ring seal, thereby making the seal between the end cover 74 and the housing body 73 more airtight.

[0127] In addition, the first bearing 60 can be fixed to the inner wall of the sleeve 42 by means of riveting points, the second bearing 80 can be fixed to the inner wall of the second through hole by means of riveting points, and the third bearing 83 can also be fixed to the inner wall of the first through hole 76 by means of riveting points, so that the positions of the first bearing 60, the second bearing 80 and the third bearing 83 will not move.

[0128] Among them, the first stopper 50, the second stopper 81 and the third stopper 82 can be set not only as snap rings, but also fixed by axially tightening a plug, or fixed by an axial pressing plate.

[0129] The steering system according to the second aspect embodiment of the present invention includes: the clutch device 200 of the above embodiment.

[0130] The vehicle according to the third aspect embodiment of the present invention includes: the steering system of the above embodiment.

[0131] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, 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 should not be construed as a limitation to the present invention.

[0132] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A clutch device, characterized in that: include: A first transmission shaft (10); a second transmission shaft (40), the second transmission shaft (40) being sleeved on a portion of the outer circumference of the first transmission shaft (10); at least one clutch switching mechanism (30), wherein at least one of the clutch switching mechanisms (30) is arranged on the outer peripheral surface of the first transmission shaft (10), or at least one of the clutch switching mechanisms (30) is arranged on the inner peripheral surface of the second transmission shaft (40); The power-on or power-off of at least one of the clutch switching mechanisms (30) is suitable for decoupling or coupling the first transmission shaft (10) and the second transmission shaft (40) in a non-axial direction.

2. The clutch device according to claim 1, characterized in that: The clutch switching mechanism (30) comprises: a driver (20), the driver (20) being arranged on the first transmission shaft (10) and rotating along with the first transmission shaft (10), or being arranged on the second transmission shaft (40) and rotating along with the second transmission shaft (40); A clamping member (31), the clamping member (31) and the driver (20) are arranged at intervals along the circumference of the first transmission shaft (10), and the driver (20) generates a driving force when power is supplied, and the driving force pushes the clamping member (31) to move in a direction approaching or away from the driver (20), so as to control the first transmission shaft (10) and the second transmission shaft (40) to be disconnected or connected.

3. The clutch device according to claim 2, characterized in that: The clutch switching mechanism (30) further comprises: an elastic connecting member (22), wherein the elastic connecting member (22) is arranged between the driver (20) and the clamping member (31), or the elastic connecting member (22) is arranged between the first transmission shaft (10) and the clamping member (31), and the elastic connecting member (22) can be arranged between the second transmission shaft (40) and the clamping member (31).

4. The clutch device according to claim 3, characterized in that: The driver (20) comprises: Magnet (211); An electromagnetic coil (212), wherein the electromagnetic coil (212) is arranged on the magnet (211).

5. The clutch device according to claim 4, characterized in that: There are a plurality of electromagnetic coils (212), each of which is arranged around the magnet (211), and the plurality of electromagnetic coils (212) are arranged at intervals along the length direction of the magnet (211).

6. The clutch device according to claim 5, characterized in that: The magnet (211) comprises, along its length direction: A first section (213), a second section (214) and a third section (215), wherein the second section (214) is connected between the first section (213) and the third section (215), and a plurality of electromagnetic coils (212) surround the first section (213) and the third section (215), respectively; The second section (214) extends along the axial direction of the first transmission shaft (10), the first section (213) and the third section (215) are arranged parallel to and perpendicular to the second section (214), and the end faces of the first section (213) and the third section (215) face the clamping member (31).

7. The clutch device according to claim 3, characterized in that: A mounting groove (14) is formed on at least one side in the circumferential direction of the first transmission shaft (10), the clutch switching mechanism (30) is arranged in the mounting groove (14), and the driver (20) drives the clamping member (31) to move in the mounting groove (14) to control the decoupling or coupling of the first transmission shaft (10) and the second transmission shaft (40) in a non-axial direction.

8. The clutch device according to claim 7, characterized in that: The angle between at least one side surface of the installation groove (14) and the groove bottom is an obtuse angle.

9. The clutch device according to claim 7, characterized in that: The clutch switching mechanism (30) and the mounting grooves (14) are both multiple and arranged in one-to-one correspondence, and the multiple mounting grooves (14) are arranged at intervals in the circumferential direction of the first transmission shaft (10).

10. The clutch device according to claim 9, characterized in that: The mounting groove (14) comprises: A mounting portion (18) and a movable portion (11), wherein the mounting portion (18) forms a mounting area for the driver (20) and the elastic connecting member (22), and the movable portion (11) forms a movable area for the clamping member (31), and the mounting portion (18) and the movable portion (11) are arranged along the circumference of the first transmission shaft (10).

11. The clutch device according to claim 10, characterized in that: Along the circumferential direction of the first transmission shaft (10), the groove depth of the movable portion (11) gradually decreases from the mounting portion (18) to a circumferential contact surface, and the circumferential contact surface is the outer circumferential surface of the first transmission shaft (10) or the inner circumferential surface of the second transmission shaft (40).

12. The clutch device according to claim 11, characterized in that: The movable part (11) comprises: a first movable part (111) and a second movable part (112), wherein the first movable part (111) and the second movable part (112) are arranged on both sides of the mounting part (18) along a circumferential direction, and the driver (20) is suitable for driving the clamping part (31) in the first movable part (111) and the clamping part (31) in the second movable part (112) to move in a direction close to the driver (20).

13. The clutch device according to claim 10, characterized in that: The clutch switching mechanism (30) further includes: A mounting seat (23), the mounting seat (23) being arranged on the mounting portion (18), the driver (20) being arranged in the mounting seat (23), a mounting hole (231) being formed on a side of the mounting seat (23) facing the movable portion (11), and the elastic connecting member (22) being arranged in the mounting hole (231).

14. The clutch device according to claim 13, characterized in that: The mounting seat (23) is a magnetic isolation material piece, and the mounting seat (23) and the first transmission shaft (10) are injection molded.

15. The clutch device according to claim 13, characterized in that: The outer peripheral surface of the first transmission shaft (10) corresponding to the mounting seat (23) is provided with a plurality of protrusions (13), and the plurality of protrusions (13) are matched with the mounting seat (23) in a concave-convex manner.

16. The clutch device according to claim 2, characterized in that: The clamping piece (31) is cylindrical in shape and is a metal piece or a magnetic piece.

17. The clutch device according to any one of claims 1 to 16, characterized in that: The first transmission shaft (10) comprises: A first shaft body (15); An annular flange (16), wherein the annular flange (16) is arranged on the first shaft body (15), and the clutch switching mechanism (30) is arranged on the annular flange (16).

18. The clutch device according to claim 17, characterized in that: A mounting groove (14) is formed on at least one side in the circumferential direction of the first transmission shaft (10), the clutch switching mechanism (30) is arranged in the mounting groove (14), and along the axial direction of the first shaft body (15), both ends of the mounting groove (14) are open; The clutch device also includes: A first stopper (50), the first stopper (50) being sleeved on the first shaft (15) and arranged on both axial sides of the annular flange (16) so as to engage with the clutch switching mechanism (30) at both ends of the mounting groove (14) for stoppering.

19. The clutch device according to any one of claims 1 to 16, characterized in that: The second transmission shaft (40) comprises: A second shaft body (41); A sleeve (42) is connected to one end of the second shaft (41); a portion of the first transmission shaft (10) and the clutch switching mechanism (30) are arranged in the sleeve (42); the clutch switching mechanism (30) controls the first transmission shaft (10) and the second transmission shaft (40) to rotate synchronously by contacting the sleeve (42) at the same time.

20. The clutch device according to claim 19, characterized in that: Also includes: A first bearing (60), wherein the first bearing (60) is disposed in the sleeve (42), and the first bearing (60) is passed through one end of the first transmission shaft (10) extending into the sleeve (42).

21. The clutch device according to any one of claims 1 to 16, characterized in that: Also includes: A housing (70), wherein the first transmission shaft (10) and the second transmission shaft (40) are arranged in the housing (70) and extend out of the housing (70) respectively.

22. The clutch device according to claim 21, characterized in that: The housing (70) comprises: A housing (73), the housing (73) being provided with a first through hole (76), and the second transmission shaft (40) passing through the first through hole (76); an end cover (74), the end cover (74) being arranged on the housing (73), the end cover (74) being provided with a second through hole, and the first transmission shaft (10) passing through the second through hole; A sealing member (75), wherein the sealing member (75) is arranged between the housing (73) and the end cover (74) to seal a gap between the housing (73) and the end cover (74).

23. The clutch device according to claim 22, characterized in that: The housing (70) is provided with a first stop step (71), the first transmission shaft (10) is provided with a second stop step (17), and the clutch device (200) further comprises: a second bearing (80), the second bearing (80) being arranged in the housing (73), the first transmission shaft (10) passing through the second bearing (80), one side of the second bearing (80) being respectively stop-matched with the first stop step (71) and the second stop step (17); a second stopper (81), the second stopper (81) being arranged on the housing (70); A third stopper (82), the third stopper (82) being arranged on the first transmission shaft (10), and the other side of the second bearing (80) being stop-matched with the second stopper (81) and the third stopper (82) respectively.

24. The clutch device according to claim 23, characterized in that: The second transmission shaft (40) is provided with a third stop step (43), the housing (70) is provided with a fourth stop step (72), and the clutch device (200) further comprises: a third bearing (83), wherein the second bearing (80) is disposed in the housing (73), the second transmission shaft (40) passes through the third bearing (83), and one side of the third bearing (83) is stop-matched with the third stop step (43); A fourth stopper (84), the fourth stopper (84) being arranged on the second transmission shaft (40), and the other side of the third bearing (83) being respectively stop-matched with the fourth stopper step (72) and the fourth stopper (84).

25. The clutch device according to claim 21, characterized in that: Also includes: a first oil seal (85), the first oil seal (85) being arranged on the housing (70), and the first transmission shaft (10) passing through the first oil seal (85); A second oil seal (86), wherein the second oil seal (86) is arranged on the housing (70), and the second transmission shaft (40) passes through the second oil seal (86).

26. A steering system, characterized in that: include: A clutch device as claimed in any one of claims 1 to 25.

27. A vehicle, characterized in that: include: The steering system of claim 26.

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