Clutch device and vehicle

Abstract

The utility model provides a clutch device and a vehicle. The clutch device comprises an inner shaft, and an inner shaft connecting piece is arranged at one end of the inner shaft; the outer shaft sleeves the outer side of the inner shaft; the transmission shaft is sleeved on the inner shaft, and one end of the transmission shaft is clamped with the inner shaft connecting piece; the canine tooth clutch gear sleeve is arranged on the transmission shaft in a sleeving manner, and the canine tooth clutch gear sleeve is provided with a first mounting position and a second mounting position which can be movably switched; when the tooth sleeve of the canine tooth clutch is located at the first mounting position, the outer shaft and the transmission shaft rotate independently; and when the tooth sleeve of the canine tooth clutch is located at the second mounting position, the outer shaft and the transmission shaft synchronously rotate. The clutch device is a dry clutch device, the number of applied structural components is small, and the manufacturing cost is low.

Description

Technical Field

[0001] This application relates to the field of hybrid transmission technology, specifically to a clutch device and a vehicle. Background Technology

[0002] In hybrid electric vehicle (HEV) power coupling systems, the clutch, as a core component for switching drive modes, directly impacts the vehicle's power performance and energy transmission efficiency. Current mainstream technologies mostly employ wet multi-plate clutches to achieve switching between pure electric, range-extended, and parallel modes. These clutches utilize hydraulic oil for cooling and lubrication, possessing high torque capacity and high-temperature resistance. However, this structure has significant technical drawbacks: the oil circulation system leads to energy loss, resulting in lower transmission efficiency compared to dry clutches; the hydraulic control unit and sealing components significantly increase system complexity and axial dimensions, hindering compact powertrain layouts; changes in oil viscosity at low temperatures cause shift lag, affecting mode switching response speed; and regular maintenance of the oil and filter incurs additional operating costs. The industry urgently needs to develop new clutch structures to overcome these technological bottlenecks. Utility Model Content

[0003] This application provides a clutch device and a vehicle, which is a dry clutch device with fewer structural components and lower manufacturing cost.

[0004] This application provides a clutch device, comprising:

[0005] An inner shaft, one end of which is provided with an inner shaft connector;

[0006] An outer shaft, which is sleeved on the outside of the inner shaft;

[0007] A drive shaft is sleeved on the inner shaft, and one end of the drive shaft is engaged with the inner shaft connector;

[0008] A dog tooth clutch sleeve is sleeved on the drive shaft, and the dog tooth clutch sleeve has a movable and switchable first mounting position and a second mounting position.

[0009] When the dog tooth clutch sleeve is in the first mounting position, the outer shaft and the drive shaft rotate independently; when the dog tooth clutch sleeve is in the second mounting position, the outer shaft and the drive shaft rotate synchronously.

[0010] In one embodiment, the dog tooth clutch sleeve is an annular structure, and the outer side of the dog tooth clutch sleeve is provided with a shift fork annular groove. The shift fork annular groove is used to withstand axial thrust and enable the dog tooth clutch sleeve to switch installation positions.

[0011] In one embodiment, the inside of the dog tooth clutch sleeve is provided with a first internal tooth set; the middle section of the drive shaft is provided with a first external tooth set;

[0012] When the dog tooth clutch sleeve is in the first mounting position, the first internal tooth group and the first external tooth group form an anti-torsional connection.

[0013] In one embodiment, a second external gear set is provided on the outside of one end of the outer shaft;

[0014] When the dog tooth clutch sleeve is in the second mounting position, the first internal tooth group, the second external tooth group, and the first external tooth group form an anti-torsional connection.

[0015] In one embodiment, an inner shaft connector, which is a nut, is installed at one end of the inner shaft adjacent to the drive shaft; the nut can restrict the axial movement of the drive shaft along the inner shaft.

[0016] In one embodiment, the inner shaft is embedded in the outer shaft and partially forms a groove, and the end of the drive shaft away from the inner shaft connector is engaged in the groove.

[0017] In one embodiment, the transmission shaft further includes a second internal gear group and a third external gear group disposed on both sides of the first external gear group, wherein the outer diameter of the first external gear group is larger than the outer diameter of the second internal gear group and the third external gear group;

[0018] The middle section of the inner shaft is provided with a fourth external tooth set, and the second internal tooth set and the fourth external tooth set form an anti-torsional connection.

[0019] The third external gear set is used for power transmission.

[0020] In one embodiment, the drive shaft is provided with a limiting annular platform, which is located outside the first external gear set and adjacent to the inner shaft connector. The limiting annular platform can abut one end of the dog tooth clutch sleeve and can restrict the dog tooth clutch sleeve from moving toward the inner shaft connector.

[0021] In one embodiment, the clutch device is a dry clutch device.

[0022] This application also provides a vehicle that includes a clutch device as described in any of the preceding claims.

[0023] The beneficial effects of adopting the above technical solution are:

[0024] This application provides a clutch device and a vehicle, including an inner shaft, an outer shaft, a dog-tooth clutch sleeve, and a drive shaft. The dog-tooth clutch sleeve has a movable switchable first mounting position and a second mounting position. When the dog-tooth clutch sleeve is in the first mounting position, the outer shaft and the drive shaft rotate independently, and the vehicle is in pure electric mode or range-extended mode. When the dog-tooth clutch sleeve is in the second mounting position, the outer shaft and the drive shaft rotate synchronously, and the vehicle is in a parallel mode of fuel mode, pure electric mode, and range-extended mode. The clutch device of this application is a dry clutch device, which has the advantages of fewer structural components and lower manufacturing cost. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a clutch device provided in an embodiment of this application.

[0027] Figure 2 This is an exploded view of a clutch device provided in an embodiment of this application.

[0028] Figure 3 This is a cross-sectional structural schematic diagram of a clutch device provided in an embodiment of this application.

[0029] Figure 4 This is a schematic diagram of the structure of a dog tooth clutch sleeve for a clutch device provided in an embodiment of this application.

[0030] Figure 5 This is a schematic diagram of the drive shaft of a clutch device provided in an embodiment of this application.

[0031] Figure label:

[0032] 100 - Clutch device;

[0033] 10-Inner shaft; 11-Inner shaft connector; 12-Nut; 13-Fourth external gear set; 15-Inner shaft journal; 16-Inner shaft through hole;

[0034] 20 - Outer shaft; 21 - Second external gear set; 22 - Fifth external gear set; 23 - Outer shaft through hole;

[0035] 30 - Drive shaft; 31 - First external gear set; 32 - Second internal gear set; 33 - Third external gear set; 35 - Limiting ring platform; 36 - Drive shaft through hole;

[0036] 50 - Dog tooth clutch sleeve; 51 - Shift fork annular groove; 52 - First internal gear set;

[0037] 60 - First installation position;

[0038] 70 - Second installation position;

[0039] 80-Card slot. Detailed Implementation

[0040] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0041] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0042] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0043] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0044] As hybrid vehicles evolve towards lighter weight and higher integration, existing wet clutches have revealed problems such as complex structure, numerous components, and increased cost. The industry urgently needs to develop new clutch structures to overcome existing technological bottlenecks. This application provides a clutch device 100. Figure 1 This is a schematic diagram of a clutch device provided in an embodiment of this application. Figure 2 This is an exploded view of a clutch device provided in an embodiment of this application, as shown below. Figure 1 and Figure 2 As shown, it includes:

[0045] An inner shaft 10, one end of which is provided with an inner shaft connector 11;

[0046] Outer shaft 20, which is sleeved on the outside of the inner shaft 10;

[0047] A drive shaft 30 is sleeved on the inner shaft 10, and one end of the drive shaft 30 is engaged with the inner shaft connector 11.

[0048] A dog tooth clutch sleeve 50, the dog tooth clutch sleeve 50 having a movable switchable first mounting position 60 and a second mounting position 70;

[0049] When the dog clutch sleeve 50 is in the first mounting position 60, the outer shaft 20 and the transmission shaft 30 rotate independently; when the dog clutch sleeve 50 is in the second mounting position 70, the outer shaft 20 and the transmission shaft 30 rotate synchronously.

[0050] The clutch device 100 provided in this application is installed in the transmission system of a vehicle (not shown in the figure) and includes at least three sleeved components. Specifically: an inner shaft 10 and an outer shaft 20 sleeved on the inner shaft 10 form a first sleeved component; a drive shaft 30 and a dog-tooth clutch sleeve 50 sleeved on the drive shaft 30 form a second sleeved component; and one end of the drive shaft 30 is sleeved on one end of the inner shaft 10 to form a third sleeved component. These three sleeved components are configured when the dog-tooth clutch sleeve 50 is in the first installation position 60, i.e., when the vehicle is in pure electric mode or range-extended mode.

[0051] When the dog clutch sleeve 50 moves to the outer shaft 20 and is sleeved on the outer shaft 20, the second sleeve assembly changes from the combination of the drive shaft 30 and the dog clutch sleeve 50 to the combination of the outer shaft 20, the drive shaft 30 and the dog clutch sleeve 50. At this time, the dog clutch sleeve 50 is in the state of the second installation position 70, that is, the vehicle is in the parallel mode of fuel and pure electric mode and range-extending mode.

[0052] In pure electric mode, the drive motor (not shown) connects to and drives the outer shaft 20 to rotate, the generator (not shown) connects to the inner shaft 10 but does not drive the inner shaft 10 to rotate, and the fuel engine (not shown) connects to the drive shaft 30 but does not drive the drive shaft 30 to rotate. That is, the vehicle's battery system (not shown) supplies power to the drive motor (not shown) to drive the clutch device 100.

[0053] In range-extending mode, the drive motor (not shown) connects to and drives the outer shaft 20 to rotate, the fuel engine (not shown) connects to and drives the drive shaft 30 to rotate, the drive shaft 30 connects to and drives the inner shaft 10 to rotate, that is, the vehicle's battery system (not shown) supplies electricity to the drive motor (not shown) to drive the clutch device 100, the fuel engine drives the drive shaft 30 and the inner shaft 10 and drives the generator to rotate and generate electricity to the battery system (not shown).

[0054] In parallel mode, the drive motor (not shown) connects to and drives the outer shaft 20 to rotate, and the fuel engine (not shown) connects to the outer shaft 20 through the dog-tooth clutch sleeve 50 and drives the outer shaft 20 to rotate; the fuel engine (not shown) connects to the drive shaft 30 and drives the drive shaft 30 to rotate, and the drive shaft 30 connects to the inner shaft 10 and drives the inner shaft 10 to rotate. That is, the vehicle's battery system (not shown) supplies electricity to the drive motor (not shown) to drive the clutch device 100, and the fuel engine drives the drive shaft 30, the outer shaft 20 and the inner shaft 10 to provide fuel power. In other words, the drive motor and the fuel engine jointly drive the clutch device 100 to output power.

[0055] Therefore, the clutch device 100 of this application can switch the vehicle's applicable mode by shifting the dog tooth clutch sleeve 50. Moreover, the clutch device 100 of this application does not need to be immersed in oil during the mode switching process. Therefore, the clutch device 100 of this application is a dry clutch device 100, which has the advantages of fewer structural components and lower manufacturing cost.

[0056] To make the technical solution, purpose, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. Furthermore, for ease of understanding, the clutch device 100 is used as a directional reference point, and the clutch device 100 is horizontally positioned in the vehicle's transmission system (not shown). One end of the generator (not shown) and drive motor (not shown) in the transmission system is defined as the motor direction, and one end of the fuel engine (not shown) is defined as the engine direction.

[0057] The inner shaft 10 is connected to the output end of the generator and has the functions of transmitting power and participating in power generation. The outer side of the inner shaft 10 has a stepped structure. The middle section of the inner shaft 10 is provided with a fourth external gear set 13, which is close to the engine direction. The inner shaft 10 has an inner shaft through hole 16 that runs through the entire inner shaft 10. The outer side of the inner shaft 10, close to the engine direction, is provided with an inner shaft journal 15 formed by the contraction of the inner shaft 10 body.

[0058] In some embodiments, please refer to 2, one end of the inner shaft 10 is provided with an inner shaft connector 11.

[0059] Specifically, an inner shaft connector 11 is installed at one end of the inner shaft 10 near the transmission shaft 30, that is, a bolt is provided at the end of the inner shaft journal 15, and the inner shaft connector 11 is a nut 12; the nut 12 can be limited after being locked with the bolt.

[0060] In the above scheme, the inner shaft 10 is a hollow shaft with a fourth external gear set 13, which is connected to the output end of the generator (not shown) and can also transmit the power of the fuel engine. Its structure is simple and easy to process.

[0061] The outer shaft 20 is connected to the output end of the drive motor (not shown in the figure) and has the function of transmitting the power of the drive motor.

[0062] In some implementations, please refer to [the relevant documentation]. Figure 2 The outer shaft 20 has a stepped structure on the outside. The outer shaft 20 has a second external gear set 21 on the outside of the end near the engine direction. The outer shaft 20 has a fifth external gear set 22 near the second external gear set 21 and facing the motor direction. The outer diameter of the fifth external gear set 22 is larger than that of the second external gear set 21. The fifth external gear set 22 can transmit power to the vehicle's transmission system (not shown in the figure).

[0063] The outer shaft 20 has an outer shaft through hole 23 inside, and the inner shaft 10 passes through the outer shaft through hole 23, that is, the outer shaft 20 is sleeved on the outside of the inner shaft 10.

[0064] Figure 3 This is a cross-sectional structural schematic diagram of a clutch device provided in an embodiment of this application, as shown below. Figure 3 As shown, the inner shaft 10 is embedded in the outer shaft 20 and partially forms a groove 80, and the end of the transmission shaft 30 away from the inner shaft connector 11 is engaged in the groove 80.

[0065] For details, please continue reading Figure 3 The inner shaft 10 passes through the outer shaft through hole 23, and the two form a groove 80 at the end near the engine direction. The drive shaft 30 is then sleeved on the inner shaft 10, and one end of the drive shaft 30 is engaged with the inner shaft connector 11, that is, the end of the drive shaft 30 near the engine direction is tightly fitted with the nut 12.

[0066] In the above scheme, the outer shaft 20 is provided with two sets of external gears of different diameters, which enables it to transmit multiple power. Its structure is simple and easy to process.

[0067] In order to enable the clutch device 100 of this application to switch quickly in a non-oil-immersed state, Figure 4 This is a schematic diagram of the structure of a dog-tooth clutch sleeve for a clutch device provided in an embodiment of this application, as shown below. Figure 4 As shown, the clutch device 100 is provided with a dog tooth clutch sleeve 50, which is an annular structure. The outer side of the dog tooth clutch sleeve 50 is provided with a shift fork annular groove 51. The shift fork annular groove 51 is used to resist axial thrust and enable the dog tooth clutch sleeve 50 to switch the installation position. The inner side of the dog tooth clutch sleeve 50 is provided with a first internal tooth group 52.

[0068] For details, please continue reading Figure 4The shift fork annular groove 51 is provided on the outer circular surface of the dog tooth clutch sleeve 50 and is close to the engine direction. The shift fork annular groove 51 can withstand the contact of the shift fork in the vehicle's transmission system (not shown) and the thrust towards the engine direction, thereby causing the dog tooth clutch sleeve 50 to shift towards the motor direction under the axial force of the shift fork.

[0069] In the above scheme, the dog tooth clutch sleeve 50 is a ring-shaped component with gears inside and grooves on the outside. Its structure is simple, its function is clear, and it is easy to drive the action to be executed in place.

[0070] In this application, the dog tooth clutch sleeve 50 achieves the switching of the vehicle's applicable mode by displacement. When the vehicle is in pure electric mode / range-extending mode, the dog tooth clutch sleeve 50 is fitted on the drive shaft 30, and the drive shaft 30 is connected to the power output end of the fuel engine (not shown in the figure). The drive shaft 30 is the basic component in this clutch device 100 that can transmit the power of the fuel engine.

[0071] Figure 5 This is a schematic diagram of the structure of the drive shaft of a clutch device provided in an embodiment of this application, as shown below. Figure 5 As shown, the transmission shaft 30 has a first external gear set 31 in the middle section; the transmission shaft 30 also includes a second internal gear set 32 ​​and a third external gear set 33 disposed on both sides of the first external gear set 31, the outer diameter of the first external gear set 31 is larger than the outer diameter of the second internal gear set 32 ​​and the third external gear set 33; the third external gear set 33 is used for power transmission.

[0072] For details, please continue reading Figure 5 The drive shaft 30 has a bushing structure that is high in the middle and low at both ends. The drive shaft 30 has a drive shaft through hole 36 that runs through the entire drive shaft 30. The drive shaft 30 has an adjacent first external gear set 31 and a third external gear set 33 on the outside facing the engine. The drive shaft through hole 36 of the drive shaft 30 has an adjacent second internal gear set 32 ​​on the side facing the motor.

[0073] The first external gear set 31 is located in the middle section outside the drive shaft 30, the third external gear set 33 is located at one end of the drive shaft 30 near the engine, and the second internal gear set 32 ​​is located at the other end of the drive shaft through hole 36 near the motor. Moreover, the outer diameter of the first external gear set 31 is larger than the outer diameter of the third external gear set 33 and the inner diameter of the second internal gear set 32.

[0074] One end of the drive shaft 30 with the second internal gear set 32 ​​moves from the inner shaft journal 15 along the motor direction to the junction of the inner shaft 10 and the inner shaft journal 15. At this point, the drive shaft 30 is sleeved on the inner shaft 10. The end of the drive shaft 30 with the second internal gear set 32 ​​is embedded in the slot 80. Moreover, the second internal gear set 32 ​​of the drive shaft 30 meshes with the fourth external gear set 13 of the inner shaft 10 and forms an anti-torsional connection.

[0075] The third external gear set 33 can be connected to the output end of the engine power (not shown in the figure), receive the power output from the engine and transmit the power.

[0076] In the above scheme, the drive shaft 30 is the connecting bridge between the electric motor power and the fuel engine power, and it is the support for the dog tooth clutch sleeve 50. Its structure is simple, its function is clear, and it is easy to process and manufacture.

[0077] To prevent the dog-tooth clutch sleeve 50, which is fitted outside the drive shaft 30, from moving toward the engine, in some embodiments, please refer to [the relevant documentation]. Figure 1 and Figure 5 The drive shaft 30 is provided with a limiting annular platform 35. The limiting annular platform 35 is located outside the first external gear group 31 and close to the inner shaft connector 11. The limiting annular platform 35 can abut one end of the dog tooth clutch sleeve 50 and can restrict the dog tooth clutch sleeve 50 from moving toward the inner shaft connector 11.

[0078] For details, please continue reading Figure 1 The limiting ring platform 35 is provided on the end face of the first external gear group 31 of the transmission shaft 30 facing the engine direction and is formed by radial protrusion. The outer diameter of the limiting ring platform 35 is larger than the outer diameter of the first external gear group 31. Therefore, when the dog tooth clutch sleeve 50 sleeved on the transmission shaft 30 moves towards the engine direction, it can be blocked by the limiting ring platform 35 and will not disengage.

[0079] In the above scheme, the setting of the limiting annular platform 35 limits the movement position of the dog tooth clutch sleeve 50, and has an important limiting function.

[0080] To address the issues of current clutch devices 100 mostly using wet mode, having many components, complex operation, and high cost, the technical solution of this application can achieve vehicle applicable mode switching by switching the position of the dog tooth clutch sleeve 50.

[0081] In some implementations, please refer to [the relevant documentation]. Figure 1 The dog tooth clutch sleeve 50 is sleeved on the drive shaft 30, and the dog tooth clutch sleeve 50 has a movable and switchable first mounting position 60 and a second mounting position 70.

[0082] When the dog tooth clutch sleeve 50 is in the first mounting position 60, the outer shaft 20 and the transmission shaft 30 rotate independently.

[0083] Specifically, when the dog clutch sleeve 50 is in the first mounting position 60, the first internal gear set 52 and the first external gear set 31 form an anti-torsional connection. That is, when the shift fork (not shown) in the vehicle's transmission system moves the dog clutch sleeve 50, and the end of the dog clutch sleeve 50 near the engine direction abuts against the limiting annular platform 35 of the drive shaft 30, the first internal gear set 52 of the dog clutch sleeve 50 meshes with the first external gear set 31 of the drive shaft 30 and forms an anti-torsional connection.

[0084] Simultaneously, the end of the drive shaft 30 near the motor direction is fitted onto the end of the inner shaft 10 near the engine direction. The second internal gear set 32 ​​of the drive shaft 30 and the fourth external gear set 13 of the inner shaft 10 form an anti-torsional connection. Moreover, the inner shaft 10 and the outer shaft 20 are slidably connected, meaning that the inner shaft 10 and the outer shaft 20 can rotate independently. Therefore, the drive shaft 30 forms an anti-torsional connection with the inner shaft 10 and can rotate by receiving power from the generator and / or the output end of the fuel engine (not shown), while the outer shaft 20 can rotate by receiving power from the output end of the drive motor (not shown).

[0085] In some embodiments, when the dog clutch sleeve 50 is in the second mounting position 70, the outer shaft 20 rotates synchronously with the drive shaft 30.

[0086] Specifically, when the dog clutch sleeve 50 is in the second mounting position 70, the first internal gear set 52 forms an anti-torsional connection with the second external gear set 21 and the first external gear set 31. That is, in the vehicle's transmission system (not shown), the shift fork moves the dog clutch sleeve 50 toward the motor and away from the limiting annular platform 35 of the drive shaft 30. The end of the dog clutch sleeve 50 near the motor abuts against the side of the fifth external gear set 22 of the outer shaft 20. At this time, the first internal gear set 52 of the dog clutch sleeve 50 meshes with the second external gear set 21 of the outer shaft 20 and the first external gear set 31 of the drive shaft 30, and the three form an anti-torsional connection.

[0087] Synchronously, the end of the drive shaft 30 near the motor direction is sleeved on the end of the inner shaft 10 near the engine direction, and the second internal gear set 32 ​​of the drive shaft 30 and the fourth external gear set 13 of the inner shaft 10 form an anti-torsional connection; moreover, the inner shaft 10 and the outer shaft 20 are slidably connected, that is, the inner shaft 10 and the outer shaft 20 can rotate independently, but after the first internal gear set 52 of the dog tooth clutch sleeve 50 meshes with the second external gear set 21 of the outer shaft 20, the inner shaft 10 and the outer shaft 20 form a state of synchronous rotation.

[0088] In the above scheme, the inner shaft 10, outer shaft 20, transmission shaft 30, dog tooth clutch sleeve 50, inner shaft connector 11 and other related components can be made of metal, engineering plastic or other materials, and can be processed by metal processing, plastic processing or other processes; all gear groups such as the first external gear group 31, the second external gear group 21, the third external gear group 33, the fourth external gear group 13, the fifth external gear group 22, the first internal gear group 52 and the second internal gear group 32 can be made of spur gears, helical gears, splines or other structures that can form a torsional connection, and there are no restrictions here.

[0089] In summary, the clutch device 100 of this application can switch the applicable vehicle mode by shifting the dog tooth clutch sleeve 50. Moreover, the clutch device 100 of this application does not need to be immersed in oil during the mode switching process. Therefore, the clutch device 100 of this application is a dry clutch device 100, which has the advantages of fewer structural components and lower manufacturing cost, thereby solving the problems of complex structure, more components and higher cost of existing wet clutches.

[0090] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A clutch device, characterized in that, include: An inner shaft, one end of which is provided with an inner shaft connector; An outer shaft, which is sleeved on the outside of the inner shaft; A drive shaft is sleeved on the inner shaft, and one end of the drive shaft is engaged with the inner shaft connector; A dog tooth clutch sleeve is sleeved on the drive shaft, and the dog tooth clutch sleeve has a movable and switchable first mounting position and a second mounting position. When the dog tooth clutch sleeve is in the first mounting position, the outer shaft and the drive shaft rotate independently; when the dog tooth clutch sleeve is in the second mounting position, the outer shaft and the drive shaft rotate synchronously.

2. A clutch device according to claim 1, characterized in that, The dog tooth clutch sleeve has an annular structure, and the outer side of the dog tooth clutch sleeve is provided with a shift fork annular groove. The shift fork annular groove is used to resist axial thrust and enable the dog tooth clutch sleeve to switch installation positions.

3. A clutch device according to claim 1, characterized in that, The inside of the dog tooth clutch sleeve is provided with a first internal tooth set; the middle section of the drive shaft is provided with a first external tooth set; When the dog tooth clutch sleeve is in the first mounting position, the first internal tooth group and the first external tooth group form an anti-torsional connection.

4. A clutch device according to claim 3, characterized in that, The outer shaft has a second external tooth set on one end; When the dog tooth clutch sleeve is in the second mounting position, the first internal tooth group, the second external tooth group, and the first external tooth group form an anti-torsional connection.

5. A clutch device according to claim 1, characterized in that, An inner shaft connector, which is a nut, is installed at one end of the inner shaft near the drive shaft; the nut can restrict the drive shaft from moving axially along the inner shaft.

6. A clutch device according to claim 3, characterized in that, The inner shaft is embedded in the outer shaft and partially forms a groove, and the end of the drive shaft away from the inner shaft connector is engaged in the groove.

7. A clutch device according to claim 3, characterized in that, The drive shaft also includes a second internal gear group and a third external gear group disposed on both sides of the first external gear group, wherein the outer diameter of the first external gear group is larger than the outer diameter of the second internal gear group and the third external gear group; The middle section of the inner shaft is provided with a fourth external tooth set, and the second internal tooth set and the fourth external tooth set form an anti-torsional connection. The third external gear set is used for power transmission.

8. A clutch device according to claim 3, characterized in that, The drive shaft is provided with a limiting annular platform, which is located outside the first external gear set and close to the inner shaft connector. The limiting annular platform can abut one end of the dog tooth clutch sleeve and can restrict the dog tooth clutch sleeve from moving toward the inner shaft connector.

9. A clutch device according to claim 1, characterized in that, The clutch device is a dry clutch device.

10. A vehicle, characterized in that, The vehicle includes a clutch device as described in any one of claims 1 to 9.

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