Transmission and drive unit and vehicle

Abstract

The present invention provides a transmission, a drive device, and a vehicle. The transmission comprises a motor, a first input shaft, a second input shaft, a first transmission assembly, a second transmission assembly, a third transmission assembly, a fourth transmission assembly, a first control mechanism, and an output shaft. The motor is in transmission connection with the first transmission assembly, the second transmission assembly, or the third transmission assembly. The first input shaft is in transmission connection with the output shaft via the second transmission assembly, and the second input shaft is in transmission connection with the output shaft via the first transmission assembly. The first input shaft is selectively connected to the output shaft via the third transmission assembly. The first control mechanism is configured to control power flow between the third and fourth transmission assemblies. The transmission allows power connected to the first input shaft or the second input shaft to be transmitted to the output shaft via the fourth transmission assembly, enabling an ultra-low speed gear mode and multiple gear modes.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a gearbox, a drive device using the gearbox, and a vehicle using the drive device. Background Art

[0002] A gearbox is a mechanism used to change the speed and torque of the engine. It can change the transmission ratio between the output and input shafts in a fixed or step-by-step manner. A hybrid transmission is a type of transmission that couples the power of the engine and the drive motor in a specific manner, achieving both speed and torque conversion.

[0003] Existing hybrid transmissions are long, making them difficult to deploy horizontally within a vehicle. Furthermore, existing transmission structures suffer from poor off-road performance and fail to meet vehicle requirements. Furthermore, the transmission's power shaft incorporates numerous gears, creating a complex structure. Multi-speed transmissions require power transmission through multiple gear sets, reducing transmission efficiency. Transmissions with fewer gears suffer from poor dynamics and fail to meet performance requirements. Summary of the Invention

[0004] In view of this, the present invention aims to provide a gearbox to improve its performance.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A gearbox includes a motor, a first input shaft, a second input shaft, a first transmission assembly, a second transmission assembly, a third transmission assembly, a fourth transmission assembly, a first control mechanism, and an output shaft;

[0007] The motor is in transmission connection with the first transmission assembly, the second transmission assembly or the third transmission assembly;

[0008] The first input shaft is inserted into the second input shaft, the first input shaft is in transmission connection with the output shaft via the second transmission assembly, and the second input shaft is in transmission connection with the output shaft via the first transmission assembly;

[0009] The first input shaft is selectively connected to the output shaft through the third transmission assembly;

[0010] The first control mechanism and the fourth transmission assembly are provided on the first input shaft;

[0011] The first control mechanism is used to control the power on and off between the third transmission assembly and the fourth transmission assembly.

[0012] Furthermore, the third transmission assembly includes a fifth driving wheel loosely mounted on the first input shaft, a third synchronizer arranged on the first input shaft, a first intermediate shaft, a first intermediate wheel arranged on the first intermediate shaft, and a fifth driven wheel arranged on the output shaft; the third synchronizer is used to selectively connect the fifth driving wheel; the first intermediate wheel is respectively connected to the fifth driving wheel and the fifth driven wheel.

[0013] Furthermore, the fourth transmission assembly includes a planetary gear mechanism; the sun gear of the planetary gear mechanism is arranged on the first input shaft; the first control mechanism includes a fourth synchronizer arranged on the fifth driving wheel, and the fourth synchronizer is selectively connected to the ring gear / planet carrier of the planetary gear mechanism.

[0014] Furthermore, the first transmission assembly includes a first driving wheel and a second driving wheel provided on the second input shaft, a first driven wheel, a second driven wheel and a first synchronizer provided on the output shaft; the first driving wheel and the first driven wheel are transmission-connected, and the second driving wheel and the second driven wheel are transmission-connected; the first synchronizer is used to selectively connect the first driven wheel or the second driven wheel.

[0015] Furthermore, the second transmission assembly includes a third driving wheel and a fourth driving wheel provided on the first input shaft, a third driven wheel, a fourth driven wheel and a second synchronizer provided on the output shaft; the third driving wheel and the third driven wheel are connected in transmission, and the fourth driving wheel and the fourth driven wheel are connected in transmission; the second synchronizer is used to selectively connect the third driven wheel or the fourth driven wheel.

[0016] Furthermore, it also includes a second intermediate shaft, a second intermediate wheel provided on the second intermediate shaft and a seventh driving wheel provided on the power output shaft of the motor; the second intermediate wheel is transmission-connected to the seventh driving wheel, and the second intermediate wheel is transmission-connected to the first transmission assembly, the second transmission assembly or the third transmission assembly.

[0017] Furthermore, it also includes a power output shaft; the power output shaft is provided with a sixth driven wheel; the output shaft is provided with a sixth driving wheel; the sixth driving wheel and the sixth driven wheel are transmission-connected.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] (1) The gearbox of the present invention can realize that the power connected to the first input shaft is transmitted to the output shaft through the second transmission component or the fourth transmission component, or the power connected to the first input shaft is transmitted to the output shaft through the third transmission component, thereby realizing a reverse gear mode, or the power connected to the first input shaft is transmitted to the output shaft through the fourth transmission component, or the power connected to the second input shaft is transmitted to the output shaft through the fourth transmission component, thereby realizing an ultra-low speed gear mode, thereby realizing a variety of different gear modes; the arrangement of the first transmission component facilitates the transmission of power from the second input shaft to the output shaft, and the arrangement of the second transmission component facilitates the transmission of power from the first input shaft to the output shaft, and the first control mechanism controls the power on and off between the third transmission component and the fourth transmission component, thereby realizing a reverse gear mode and an ultra-low speed gear mode. The motor is connected to the first transmission component, the second transmission component, or the third transmission component, thereby realizing a variety of drive modes.

[0020] (2) The third transmission assembly includes a fifth driving wheel and a third synchronizer. The third synchronizer is selectively connected to the fifth driving wheel to realize whether the power of the first input shaft is transmitted to the output shaft, thereby facilitating the control of the power on and off of the reverse gear mode.

[0021] (3) The fourth transmission assembly includes a planetary gear mechanism, and the sun gear is arranged on the first input shaft. The first control mechanism selectively connects the ring gear or the planetary carrier to control the power on and off between the third transmission assembly and the fourth transmission assembly, so that the power connected to the first input shaft can be transmitted to the output shaft through the sun gear, the ring gear or the planetary carrier, thereby facilitating the realization of an ultra-low speed gear mode.

[0022] (4) The first transmission assembly includes a first driving wheel, a second driving wheel, a first driven wheel, a second driven wheel and a first synchronizer, and the first driven wheel or the second driven wheel can be selectively connected through the first synchronizer to realize the transmission of power from the second input shaft to the output shaft, which is convenient for layout and facilitates gear shifting and vehicle speed adjustment.

[0023] (5) The second transmission assembly includes a third driving wheel, a fourth driving wheel, a third driven wheel, a fourth driven wheel and a second synchronizer, and can selectively connect the third driven wheel or the fourth driven wheel through the second synchronizer to realize the transmission of power from the first input shaft to the output shaft, which is convenient for layout and facilitates gear shifting and vehicle speed adjustment.

[0024] (6) A second intermediate shaft and a second intermediate wheel are provided, and the second intermediate wheel is connected to the seventh driving wheel. The second intermediate wheel is also transmission-connected to the first transmission assembly, the second transmission assembly, or the third transmission assembly, thereby facilitating the transmission of the motor power to the input shaft and the output shaft. Furthermore, the provision of the second intermediate shaft and the second intermediate wheel can also change the transmission ratio, improve meshing efficiency, and thus enhance the smoothness of power transmission.

[0025] (7) The power output shaft is provided, and the sixth driving wheel and the sixth driven wheel are connected in transmission, so that the power transmitted to the output shaft can be transmitted to the power output shaft, thereby driving the vehicle to move. The arrangement of the power output shaft is also conducive to shortening the overall length of the gearbox.

[0026] Another object of the present invention is to provide a drive device, comprising the gearbox as described above, and also comprising an engine and a second control mechanism; the second control mechanism is arranged at the power output end of the engine, and the second control mechanism is used to control the first input shaft and the second input shaft to be selectively connected to the power output end of the engine.

[0027] Furthermore, the second control mechanism includes a first clutch provided between the power output end of the engine and the first input shaft, and a second clutch provided between the power output end of the engine and the second input shaft.

[0028] (1) The driving device of the present invention arranges the second control mechanism at the power output end of the engine and controls the first input shaft and the second input shaft to be selectively connected to the power output end of the engine, so that the power of the engine can be transmitted to the output shaft through the first input shaft or the second input shaft, and the motor is connected to the second transmission assembly, so that the power of the motor can be transmitted to the output shaft through the first input shaft. Therefore, multiple driving modes such as engine driving alone, motor driving alone, and engine and motor driving together can be realized, thereby facilitating the realization of multiple different gear modes, and each driving mode has an ultra-low speed gear position, and has good off-road performance.

[0029] (2) The first input shaft is inserted into the second input shaft, which makes the overall structure simpler and more compact, and is beneficial to the layout of the entire vehicle.

[0030] At the same time, another object of the present invention is to provide a vehicle equipped with the driving device as described above.

[0031] The vehicle of the present invention, equipped with the aforementioned drive device, can achieve multiple drive modes, including engine-only drive, motor-only drive, and engine-motor combined drive. Each drive mode includes an ultra-low gear position, resulting in excellent off-road performance. Furthermore, the overall structure is more compact, facilitating the implementation of multiple gear modes while occupying a relatively small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0033] Figure 1 This is a schematic structural diagram of the gearbox in application state according to the first embodiment of the present invention;

[0034] Figure 2 A schematic diagram of a power transmission route of the transmission according to embodiment 1 of the present invention when the transmission is in the first gear mode when driven by the engine;

[0035] Figure 3 A schematic diagram of a power transmission route of the transmission according to embodiment 1 of the present invention when the transmission is in the second gear mode when driven by the engine;

[0036] Figure 4 A schematic diagram of the power transmission route of the transmission according to the first embodiment of the present invention when the transmission is in the third gear mode when driven by the engine;

[0037] Figure 5 A schematic diagram of the power transmission route of the transmission according to the first embodiment of the present invention when the transmission is in the fourth gear mode when driven by the engine;

[0038] Figure 6 A schematic diagram of the power transmission route of the transmission according to the first embodiment of the present invention when the transmission is in the ultra-low gear mode when driven by the engine;

[0039] Figure 7 A schematic diagram of the power transmission route of the transmission according to the first embodiment of the present invention when the transmission is in the reverse gear mode when driven by the engine;

[0040] Figure 8 A schematic diagram of the power transmission route of the gearbox according to the first embodiment of the present invention when the engine and the motor are driving together in the first gear mode;

[0041] Figure 9 A schematic diagram of the power transmission route of the transmission in the second gear mode when the engine and the motor are driving together according to the first embodiment of the present invention;

[0042] Figure 10 A schematic diagram of the power transmission route of the transmission according to the first embodiment of the present invention when the engine and the motor are driving together in the ultra-low gear mode;

[0043] Figure 11 A schematic diagram of the power transmission route of the transmission according to the first embodiment of the present invention when the engine and the motor are driving together and the transmission is in the reverse gear mode;

[0044] Figure 12 A schematic diagram of a power transmission route of the gearbox according to embodiment 1 of the present invention when the gearbox is in the first gear mode when driven by the motor;

[0045] Figure 13A schematic diagram of the power transmission route of the gearbox according to the first embodiment of the present invention when the gearbox is in the second gear mode when driven by the motor;

[0046] Figure 14 A schematic diagram of the power transmission route of the gearbox according to the first embodiment of the present invention when the gearbox is in the ultra-low gear mode when driven by the motor;

[0047] Figure 15 A schematic diagram of the power transmission route of the gearbox according to the first embodiment of the present invention when the gearbox is in the reverse gear mode when driven by the motor;

[0048] Figure 16 This is a schematic structural diagram of the output shaft assembly according to the first embodiment of the present invention.

[0049] Description of reference numerals:

[0050] 1. Second control mechanism; 2. First input shaft; 3. Second input shaft; 4. Output shaft; 5. Second intermediate shaft; 6. First intermediate shaft; 7. Power output shaft; 10. Motor; 20. Engine; 30. Differential; 11. Steering mechanism;

[0051] 101, first clutch; 102, second clutch;

[0052] 201, third driving gear; 202, fourth driving gear; 203, third synchronizer; 204, fifth driving gear; 205, sun gear; 206, planetary gear; 207, planet carrier; 208, ring gear; 209, fourth synchronizer;

[0053] 301, first driving wheel; 302, second driving wheel;

[0054] 401, first driven wheel; 402, second driven wheel; 403, third driven wheel; 404, fourth driven wheel; 405, first synchronizer; 406, second synchronizer; 407, sixth driving wheel; 408, fifth driven wheel;

[0055] 501, second intermediate wheel;

[0056] 601, first intermediate wheel;

[0057] 701, sixth driven wheel;

[0058] 801. The seventh driving wheel. DETAILED DESCRIPTION

[0059] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0060] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," and "back" and other terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0061] Furthermore, in the description of the present invention, unless otherwise expressly defined, the terms "mounted," "connected," "connect," and "connector" should be interpreted broadly. For example, these terms may refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will appreciate the specific meanings of these terms in light of the specific circumstances.

[0062] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0063] Example 1

[0064] This embodiment relates to a gearbox, such as Figure 1 As shown, the overall structure mainly includes a motor 10, a first input shaft 2, a second input shaft 3, a first transmission assembly, a second transmission assembly, a third transmission assembly, a fourth transmission assembly, a first control mechanism and an output shaft 4.

[0065] The first input shaft 2 is drivingly connected to the output shaft 4 via the second transmission assembly. The first input shaft 2 is selectively connected to the output shaft 4 via the third transmission assembly, facilitating transmission of power from the first input shaft 2 to the output shaft 4 via the second transmission assembly, or alternatively, facilitating transmission of power from the first input shaft 2 to the output shaft 4 via the third transmission assembly. The motor 10 is drivingly connected to the second transmission assembly, facilitating transmission of power from the motor 10 to the first input shaft 2 via the second transmission assembly.

[0066] The second input shaft 3 is connected to the output shaft 4 via the first transmission assembly, facilitating the transmission of power from the second input shaft 3 to the output shaft 4. A first control mechanism and a fourth transmission assembly are provided on the first input shaft 2, facilitating the transmission of power from the first input shaft 2 to the output shaft 4 via the second or fourth transmission assembly, thereby achieving a reverse gear mode. This also facilitates the transmission of power from the first input shaft 2 to the output shaft 4 via the fourth transmission assembly, or the transmission of power from the second input shaft 3 to the output shaft 4 via the fourth transmission assembly, thereby achieving an ultra-low speed gear mode.

[0067] It should be noted here that, in order to reduce the occupied space, as a preferred embodiment, the first input shaft 2 as described above is inserted into the second input shaft 3, so that the overall structure of the gearbox is more compact.

[0068] Furthermore, the first control mechanism is used to control the power on / off between the third transmission assembly and the fourth transmission assembly, so that the first control mechanism controls the power on / off between the third transmission assembly and the fourth transmission assembly, thereby facilitating the realization of the reverse gear mode and the ultra-low speed gear mode respectively.

[0069] The output shaft 4 can directly serve as the input shaft of the differential 30, directly outputting power to the differential 30. In this embodiment, the output shaft 4 is indirectly connected to the input shaft of the differential 30. As a preferred embodiment, the output shaft 4 is connected to the input shaft of the differential 30 via a sixth driving wheel 407 and a sixth driven wheel 701, which are meshed together as described below. Specifically, the sixth driving wheel 407 is fixed to the output shaft 4, and the sixth driven wheel 701 is fixed to the power output shaft 7. This allows the power from the output shaft 4 to be transmitted to the power output shaft 7 via the sixth driving wheel 407 and the sixth driven wheel 701. In this case, the power output shaft 7 can serve as the input shaft of the differential 30.

[0070] In the above structure, the coordination between the various transmission assemblies allows the power received by the first input shaft 2 to be transmitted to the output shaft 4 via the fourth transmission assembly, or the power received by the second input shaft 3 to be transmitted to the output shaft 4 via the fourth transmission assembly, thereby achieving an ultra-low speed gear mode. Furthermore, the first control mechanism controls the power flow between the third and fourth transmission assemblies, thereby facilitating the realization of the reverse gear mode and the ultra-low speed gear mode, respectively.

[0071] The aforementioned first transmission assembly is used to transmit power from the second input shaft 3 to the output shaft 4. As a preferred and feasible embodiment, the first transmission assembly includes a first driving wheel 301 and a second driving wheel 302 fixedly mounted on the second input shaft 3, a first driven wheel 401 and a second driven wheel 402 loosely mounted on the output shaft 4, and a first synchronizer 405 fixedly mounted on the output shaft 4. The first driving wheel 301 and the first driven wheel 401 are in driving connection with each other, while the second driving wheel 302 and the second driven wheel 402 are in driving connection with each other. The first synchronizer 405 is configured to selectively connect to either the first driven wheel 401 or the second driven wheel 402. Thus, the power received by the second input shaft 3 is transmitted to the output shaft 4 via the first driven wheel 401 or via the second driven wheel 402.

[0072] The aforementioned second transmission assembly is used to transmit power from the first input shaft 2 to the output shaft 4. As a preferred and feasible embodiment, the second transmission assembly includes a third driving wheel 201 and a fourth driving wheel 202 fixed to the first input shaft 2, a third driven wheel 403 and a fourth driven wheel 404 loosely mounted on the output shaft 4, and a second synchronizer 406 fixed to the output shaft 4. The third driving wheel 201 and the third driven wheel 403 are in driving connection with each other, while the fourth driving wheel 202 and the fourth driven wheel 404 are in driving connection with each other. The second synchronizer 406 is configured to selectively connect to either the third driven wheel 403 or the fourth driven wheel 404. Thus, the power received by the first input shaft 2 is transmitted to the output shaft 4 via the third driven wheel 403 or via the fourth driven wheel 404.

[0073] The aforementioned third transmission assembly, as a preferred and feasible embodiment, includes a fifth driving gear 204 mounted loosely on the first input shaft 2, a third synchronizer 203 disposed on the first input shaft 2, a first intermediate shaft 6, a first intermediate gear 601 fixedly mounted on the first intermediate shaft 6, and a fifth driven gear 408 fixedly mounted on the output shaft 4. The third synchronizer 203 is configured to selectively connect to the fifth driving gear 204, and the first intermediate gear 601 is respectively drivingly connected to the fifth driving gear 204 and the fifth driven gear 408. The first intermediate gear 601 is respectively drivingly connected to the fifth driving gear 204 and the fifth driven gear 408, thereby improving the smoothness of power transmission from the fifth driving gear 204 to the fifth driven gear 408.

[0074] In addition, the aforementioned fourth transmission assembly, as a preferred and feasible embodiment, includes a planetary gear mechanism, which primarily comprises a sun gear 205, a ring gear 208, and planetary gears 206 drivingly connected to the sun gear 205 and the ring gear 208, respectively. Sun gear 205 is mounted on the first input shaft 2, and planetary gears 206 are rotatably mounted on the transmission housing via a planet carrier 207. The first control mechanism includes a fourth synchronizer 209 mounted on the fifth driving gear 204, selectively connected to the ring gear 208. It should be noted that if the ring gear 208 of the planetary gear mechanism is mounted on the transmission housing, the fourth synchronizer 209 is selectively connected to the planet carrier 207. This configuration facilitates the first control mechanism in controlling the power on / off between the third transmission assembly and the planetary gear mechanism.

[0075] As a preferred arrangement, the gearbox of this embodiment further includes a second intermediate shaft 5 and a second intermediate gear 501 fixedly mounted on the second intermediate shaft 5. A seventh driving gear 801 is fixedly mounted on the power output shaft of the motor 10. The second intermediate gear 501 is drivingly connected to the seventh driving gear 801, and the second intermediate gear 501 is drivingly connected to the first transmission assembly, the second transmission assembly, or the third transmission assembly.

[0076] As a preferred embodiment, the second intermediate wheel 501 is drivingly connected to the third driving wheel 201 or the fourth driving wheel 202. This facilitates transmission of power from the motor 10 to the first input shaft 2 via the seventh driving wheel 801, the second intermediate wheel 501, and the third driving wheel 201; or to the first input shaft 2 via the seventh driving wheel 801, the second intermediate wheel 501, and the fourth driving wheel 202.

[0077] It should be noted that, in the above embodiment, the motor 10 is transmission-connected to the second transmission assembly. In another embodiment, the motor 10 may also be transmission-connected to the first transmission assembly, for example, by meshing the second intermediate wheel 501 with the first driving wheel 301 or the second driving wheel 302. In another embodiment, the motor 10 may also be transmission-connected to the third transmission assembly, for example, by meshing the second intermediate wheel 501 with the fifth driving wheel 204.

[0078] The aforementioned first control mechanism specifically includes a fourth synchronizer 209 provided on the fifth driving wheel 204, wherein the fourth synchronizer 209 adopts a unilateral synchronizer, which is used to selectively connect to the ring gear 208 of the planetary gear mechanism. At this time, the engagement sleeve of the unilateral synchronizer is provided on the ring gear 208. Since the fifth driving wheel 204 belongs to the third transmission assembly and the ring gear 208 belongs to the fourth transmission assembly, it is possible to realize power on and off between the third transmission assembly and the fourth transmission assembly.

[0079] It should be noted here that in the planetary gear mechanism, only one of the ring gear 208 and the planet carrier 207 needs to be fixed. The planetary gear mechanism described above is explained by taking the planet carrier 207 as an example. In addition to this, the ring gear 208 can of course also be fixed, but in this case the unilateral synchronizer should be selectively connected to the planet carrier 207, that is, the engagement sleeve of the unilateral synchronizer is provided on the planet carrier 207.

[0080] In addition, as a preferred arrangement, the gearbox of this embodiment further includes a power output shaft 7, and a sixth driven wheel 701 is fixed to the power output shaft 7. The sixth driven wheel 701 is meshed and connected with the sixth driving wheel 407 fixed to the output shaft 4. This arrangement allows the power received by the output shaft 4 to be transmitted to the power output shaft 7.

[0081] The gearbox of this embodiment can realize that the power received by the first input shaft 2 is transmitted to the output shaft 4 via the second transmission assembly or the fourth transmission assembly, or the power received by the first input shaft 2 is transmitted to the output shaft 4 via the third transmission assembly, thereby realizing a reverse gear mode, or the power received by the first input shaft 2 is transmitted to the output shaft 4 via the fourth transmission assembly, or the power received by the second input shaft 3 is transmitted to the output shaft 4 via the fourth transmission assembly, thereby realizing an ultra-low speed gear mode, thereby realizing a variety of different gear modes.

[0082] Furthermore, the first control mechanism controls the power flow between the third and fourth transmission assemblies, facilitating the realization of reverse and ultra-low speed modes, respectively. Furthermore, the transmission utilizes a non-wound gear structure, directly outputting power through the gears. This reduces the number of gear sets required for power transmission, thereby improving transmission efficiency and power delivery stability.

[0083] As a preferred embodiment, the power output shaft 7 and the steering mechanism 11 are integrated to form an output shaft assembly, wherein the power output shaft 7 is mounted on the steering mechanism 11; the steering mechanism 11 is mounted on the sixth driven wheel 701 for adjusting the angle between the power output shaft 7 and the sixth driven wheel 701.

[0084] As shown in the output shaft assembly above, the sixth driven wheel 701 is connected to the power output shaft 7 through the steering mechanism 11, so that the power output shaft 7 and the sixth driven wheel 701 can adjust the connection angle through the steering mechanism 11, that is, the angle between the axis of the power output shaft 7 and the axis of the sixth driven wheel 701 is adjusted, and the angle adjustment of the power output shaft 7 relative to the sixth driven wheel 701 is achieved.

[0085] Therefore, the angle adjustment of the power output shaft 7 relative to the sixth driven wheel 701 realizes the adjustment of the direction of the power output shaft 7, reduces the restrictions on the layout position of the power output shaft 7 and the connecting components connected to it (such as the main reducer, etc.), and also reduces the restrictions on the layout position of the connecting components, which facilitates the layout of the entire vehicle; and, when installed in the powertrain assembly, it is easy to assemble.

[0086] At the same time, this embodiment also relates to a driving device, which is applied with the above-mentioned gearbox. The specific structure of the driving device can still be referred to Figure 1 As shown, in addition to the aforementioned gearbox, it also includes an engine 20 and a second control mechanism 1. The second control mechanism 1 is located at the power output of the engine 20 and is used to control whether the first input shaft 2 or the second input shaft 3 is selectively connected to the power output of the engine 20. The power of the engine 20 is transmitted to the output shaft 4 via the first input shaft 2 or the second input shaft 3.

[0087] As a preferred implementation form, the second control mechanism 1 includes a first clutch 101 provided between the power output end of the engine 20 and the first input shaft 2 , and a second clutch 102 provided between the power output end of the engine 20 and the second input shaft 3 .

[0088] Among them, the first clutch 101 is used to selectively connect the first input shaft 2 and the power output end of the engine 20, and the second clutch 102 is used to selectively connect the second input shaft 3 and the power output end of the engine 20, and the first input shaft 2 is placed in the second input shaft 3.

[0089] The driving device of this embodiment has three driving modes, including the engine 20 driving mode alone, the engine 20 and motor 10 driving mode together, and the motor 10 driving mode alone. In addition, each driving mode has an ultra-low speed gear function, as well as many other different forward gear modes. Please refer to the following description for details.

[0090] In the engine 20 single-drive mode, the transmission has five forward gears and one reverse gear, wherein the forward gears include a low-speed gear. The gear modes are as follows:

[0091] 1) When the engine 20 is driven, the power transmission route of the transmission in the first gear mode can be as follows Figure 2 As shown, the first clutch 101 is disconnected, the second clutch 102 is engaged, and the first synchronizer 405 is combined with the first driven wheel 401. This gear mode can be used as the first gear of the transmission.

[0092] At this time, the power transmission route is: engine 20 → second clutch 102 → second input shaft 3 → first driving wheel 301 → first driven wheel 401 → first synchronizer 405 → output shaft 4 → sixth driving wheel 407 → sixth driven wheel 701 → power output shaft 7 → differential 30.

[0093] 2) When the engine 20 is driven, the power transmission route of the transmission in the second gear mode can be as follows Figure 3 As shown, the first clutch 101 is engaged, the second clutch 102 is disengaged, and the second synchronizer 406 is coupled with the third driven wheel 403 . This gear mode can be used as the second gear of the transmission.

[0094] At this time, the power transmission route is: engine 20 → first clutch 101 → first input shaft 2 → third driving wheel 201 → third driven wheel 403 → second synchronizer 406 → output shaft 4 → sixth driving wheel 407 → sixth driven wheel 701 → power output shaft 7 → differential 30.

[0095] 3) When the engine 20 is driven, the power transmission route of the transmission in the third gear mode can be as follows Figure 4As shown, the first clutch 101 is disconnected, the second clutch 102 is engaged, and the first synchronizer 405 is combined with the second driven wheel 402. This gear mode can be used as the third gear of the transmission.

[0096] At this time, the power transmission route is: engine 20 → second clutch 102 → second input shaft 3 → second driving wheel 302 → second driven wheel 402 → first synchronizer 405 → output shaft 4 → sixth driving wheel 407 → sixth driven wheel 701 → power output shaft 7 → differential 30.

[0097] 4) When the engine 20 is driven, the power transmission route of the transmission in the fourth gear mode can be as follows Figure 5 As shown, the first clutch 101 is engaged, the second clutch 102 is disengaged, and the second synchronizer 406 is coupled with the fourth driven wheel 404 . This gear mode can be used as the fourth gear of the transmission.

[0098] At this time, the power transmission route is: engine 20 → first clutch 101 → first input shaft 2 → fourth driving wheel 202 → fourth driven wheel 404 → second synchronizer 406 → output shaft 4 → sixth driving wheel 407 → sixth driven wheel 701 → power output shaft 7 → differential 30.

[0099] 5) When the engine 20 is driven, the power transmission route of the transmission in the ultra-low gear mode can be as follows Figure 6 As shown, the first clutch 101 is engaged, the second clutch 102 is disengaged, and the fourth synchronizer 209 and the ring gear 208 are coupled.

[0100] At this time, the power transmission route is: engine 20 → first clutch 101 → first input shaft 2 → sun gear 205 → planetary gear 206 → ring gear 208 → fourth synchronizer 209 → fifth driving gear 204 → first intermediate gear 601 → fifth driven gear 408 → output shaft 4 → sixth driving gear 407 → sixth driven gear 701 → power output shaft 7 → differential 30.

[0101] 6) When the engine 20 is driving, the power transmission route when the transmission is in the reverse gear mode can be as follows Figure 7 As shown, the first clutch 101 is engaged, the second clutch 102 is disengaged, and the third synchronizer 203 is engaged with the fifth driving gear 204. At this point, the power transmission route is: engine 20 → first clutch 101 → first input shaft 2 → third synchronizer 203 → fifth driving gear 204 → first intermediate gear 601 → fifth driven gear 408 → output shaft 4 → sixth driving gear 407 → sixth driven gear 701 → power output shaft 7 → differential 30.

[0102] In the common driving mode of the engine 20 and the motor 10, the gearbox has three forward gears and one reverse gear, wherein the forward gear includes a low speed gear. The gear modes are as follows:

[0103] 1) When the engine 20 and the motor 10 are driven together, the power transmission route of the transmission in the first gear mode can be as follows Figure 8 As shown, the first clutch 101 is engaged, the second clutch 102 is disengaged, and the second synchronizer 406 is engaged with the third driven gear 403. At this point, the power transmission route of the engine 20 is: engine 20 → first clutch 101 → first input shaft 2 → third driving gear 201 → third driven gear 403 → second synchronizer 406 → output shaft 4 → sixth driving gear 407 → sixth driven gear 701 → power output shaft 7 → differential 30.

[0104] The power transmission route of the motor 10 is: motor 10 → seventh driving wheel 801 → second intermediate wheel 501 → fourth driving wheel 202 → first input shaft 2 → third driving wheel 201 → third driven wheel 403 → second synchronizer 406 → output shaft 4 → sixth driving wheel 407 → sixth driven wheel 701 → power output shaft 7 → differential 30.

[0105] 2) When the engine 20 and the motor 10 are driven together, the power transmission route of the transmission in the second gear mode can be as follows: Figure 9 As shown, the first clutch 101 is engaged, the second clutch 102 is disengaged, and the second synchronizer 406 is coupled to the fourth driven gear 404 .

[0106] At this time, the power transmission route of the engine 20 is: engine 20 → first clutch 101 → first input shaft 2 → fourth driving wheel 202 → fourth driven wheel 404 → second synchronizer 406 → output shaft 4 → sixth driving wheel 407 → sixth driven wheel 701 → power output shaft 7 → differential 30.

[0107] The power transmission route of the motor 10 is: motor 10 → seventh driving wheel 801 → second intermediate wheel 501 → fourth driving wheel 202 → fourth driven wheel 404 → second synchronizer 406 → output shaft 4 → sixth driving wheel 407 → sixth driven wheel 701 → power output shaft 7 → differential 30.

[0108] 3) When the engine 20 and the motor 10 are driven together, the power transmission route of the transmission in the ultra-low gear mode can be as follows: Figure 10As shown, the first clutch 101 is engaged, the second clutch 102 is disengaged, and the fourth synchronizer 209 is engaged with the ring gear 208. At this point, the power transmission route of the engine 20 is: engine 20 → first clutch 101 → first input shaft 2 → sun gear 205 → planetary gears 206 → ring gear 208 → fourth synchronizer 209 → fifth driving gear 204 → first intermediate gear 601 → fifth driven gear 408 → output shaft 4 → sixth driving gear 407 → sixth driven gear 701 → power output shaft 7 → differential 30.

[0109] The power transmission route of the motor 10 is: motor 10 → seventh driving gear 801 → second intermediate gear 501 → fourth driving gear 202 → first input shaft 2 → sun gear 205 → planetary gear 206 → ring gear 208 → fourth synchronizer 209 → fifth driving gear 204 → first intermediate gear 601 → fifth driven gear 408 → output shaft 4 → sixth driving gear 407 → sixth driven gear 701 → power output shaft 7 → differential 30.

[0110] 4) When the engine 20 and the motor 10 are driven together, the power transmission route of the gearbox in the reverse gear mode can be as follows Figure 11 As shown, the first clutch 101 is engaged, the second clutch 102 is disengaged, and the third synchronizer 203 is engaged with the fifth driving gear 204. At this point, the power transmission route of the engine 20 is: engine 20 → first clutch 101 → first input shaft 2 → third synchronizer 203 → fifth driving gear 204 → first intermediate gear 601 → fifth driven gear 408 → output shaft 4 → sixth driving gear 407 → sixth driven gear 701 → power output shaft 7 → differential 30.

[0111] The power transmission route of the motor 10 is: motor 10 → seventh driving wheel 801 → second intermediate wheel 501 → fourth driving wheel 202 → first input shaft 2 → third synchronizer 203 → fifth driving wheel 204 → first intermediate wheel 601 → fifth driven wheel 408 → output shaft 4 → sixth driving wheel 407 → sixth driven wheel 701 → power output shaft 7 → differential 30.

[0112] In the motor 10 single drive mode, the gearbox has three forward gears and one reverse gear, wherein the forward gear includes an ultra-low speed gear. The gear modes are as follows:

[0113] 1) When the motor 10 is driven alone, the power transmission route of the gearbox in the first gear mode can be as follows Figure 12 As shown, the first clutch 101 is disengaged, the second clutch 102 is disengaged, and the second synchronizer 406 is engaged with the third driven gear 403 .

[0114] At this time, the power transmission route is: motor 10 → seventh driving wheel 801 → second intermediate wheel 501 → fourth driving wheel 202 → first input shaft 2 → third driving wheel 201 → third driven wheel 403 → second synchronizer 406 → output shaft 4 → sixth driving wheel 407 → sixth driven wheel 701 → power output shaft 7 → differential 30.

[0115] 2) When the motor 10 is driven alone, the power transmission route of the gearbox in the second gear mode can be as follows Figure 13 As shown, the first clutch 101 is disengaged, the second clutch 102 is disengaged, and the second synchronizer 406 is engaged with the fourth driven gear 404 .

[0116] At this time, the power transmission route is: motor 10 → seventh driving wheel 801 → second intermediate wheel 501 → fourth driving wheel 202 → fourth driven wheel 404 → second synchronizer 406 → output shaft 4 → sixth driving wheel 407 → sixth driven wheel 701 → power output shaft 7 → differential 30.

[0117] 3) When the motor 10 is driven alone, the power transmission route of the gearbox in the ultra-low speed gear mode can be as follows Figure 14 As shown, the first clutch 101 is disengaged, the second clutch 102 is disengaged, and the fourth synchronizer 209 is engaged with the ring gear 208 .

[0118] At this time, the power transmission route is: motor 10 → seventh driving gear 801 → second intermediate gear 501 → fourth driving gear 202 → first input shaft 2 → sun gear 205 → planetary gear 206 → ring gear 208 → fourth synchronizer 209 → fifth driving gear 204 → first intermediate gear 601 → fifth driven gear 408 → output shaft 4 → sixth driving gear 407 → sixth driven gear 701 → power output shaft 7 → differential 30.

[0119] 4) When the motor 10 is driven alone, the power transmission route of the gearbox in the reverse gear mode can be as follows Figure 15 As shown, the first clutch 101 is disengaged, the second clutch 102 is disengaged, and the third synchronizer 203 is engaged with the fifth driving wheel 204 .

[0120] At this time, the power transmission route is: motor 10 → seventh driving wheel 801 → second intermediate wheel 501 → fourth driving wheel 202 → first input shaft 2 → third synchronizer 203 → fifth driving wheel 204 → first intermediate wheel 601 → fifth driven wheel 408 → output shaft 4 → sixth driving wheel 407 → sixth driven wheel 701 → power output shaft 7 → differential 30.

[0121] Still refer to Figure 1 As shown, when the vehicle is parked with a low remaining power, the motor 10 generates electricity to charge the battery. At this time, the first clutch 101 and the second clutch 102 are both in the disconnected state.

[0122] The driving device of this embodiment, by arranging the second control mechanism 1 at the power output end of the engine 20 and controlling the first input shaft 2 and the second input shaft 3 to be selectively connected to the power output end of the engine 20, can transmit the power of the engine 20 to the output shaft 4 via the first input shaft 2 or the second input shaft 3, and the motor 10 is connected to the first transmission assembly, so that the power of the motor 10 can be transmitted to the output shaft 4 via the second input shaft 3. In this way, multiple driving modes such as the engine 20 driving alone, the motor 10 driving alone, and the engine 20 and the motor 10 driving together can be realized, thereby facilitating the realization of multiple different gear modes, and each driving mode has an ultra-low speed gear, and has good off-road performance.

[0123] Example 2

[0124] This embodiment relates to a vehicle equipped with the drive device of embodiment 1. The vehicle of this embodiment, by applying the drive device of embodiment 1, has the same beneficial effects as the drive device of the prior art, and will not be described in detail here.

[0125] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gearbox, characterized in that: It comprises a motor (10), a first input shaft (2), a second input shaft (3), a first transmission assembly, a second transmission assembly, a third transmission assembly, a fourth transmission assembly, a first control mechanism and an output shaft (4); The motor (10) is in transmission connection with the first transmission assembly, the second transmission assembly or the third transmission assembly, and the power of the motor (10) is transmitted to the output shaft (4) via the second input shaft (3) or the power of the motor (10) is transmitted to the first input shaft (2) via the second transmission assembly; The first input shaft (2) is inserted into the second input shaft (3), the first input shaft (2) is connected to the output shaft (4) through the second transmission assembly, and the second input shaft (3) is connected to the output shaft (4) through the first transmission assembly; The first input shaft (2) is selectively connected to the output shaft (4) via the third transmission assembly; The first control mechanism and the fourth transmission assembly are arranged on the first input shaft (2); The first control mechanism is used to control the power on and off between the third transmission assembly and the fourth transmission assembly; The third transmission assembly comprises a fifth driving wheel (204) loosely mounted on the first input shaft (2), a third synchronizer (203) provided on the first input shaft (2), a first intermediate shaft (6), a first intermediate wheel (601) provided on the first intermediate shaft (6), and a fifth driven wheel (408) provided on the output shaft (4); the third synchronizer (203) is used to selectively connect to the fifth driving wheel (204); the first intermediate wheel (601) is respectively connected to the fifth driving wheel (204) and the fifth driven wheel (408); The fourth transmission assembly includes a planetary gear mechanism; the sun gear (205) of the planetary gear mechanism is arranged on the first input shaft (2); the first control mechanism includes a fourth synchronizer (209) arranged on the fifth driving wheel (204), and the fourth synchronizer (209) is selectively connected to the ring gear (208) / planet carrier (207) of the planetary gear mechanism.

2. The gearbox according to claim 1, characterized in that: The first transmission assembly comprises a first driving wheel (301) and a second driving wheel (302) provided on the second input shaft (3), a first driven wheel (401), a second driven wheel (402) and a first synchronizer (405) provided on the output shaft (4); The first driving wheel (301) and the first driven wheel (401) are connected in a transmission manner, and the second driving wheel (302) and the second driven wheel (402) are connected in a transmission manner; The first synchronizer (405) is used to selectively connect the first driven wheel (401) or the second driven wheel (402).

3. The gearbox according to claim 1, characterized in that: The second transmission assembly comprises a third driving wheel (201) and a fourth driving wheel (202) provided on the first input shaft (2), a third driven wheel (403), a fourth driven wheel (404) and a second synchronizer (406) provided on the output shaft (4); The third driving wheel (201) and the third driven wheel (403) are connected in a transmission manner, and the fourth driving wheel (202) and the fourth driven wheel (404) are connected in a transmission manner; The second synchronizer (406) is used to selectively connect the third driven wheel (403) or the fourth driven wheel (404).

4. The gearbox according to claim 1, characterized in that: It also includes a second intermediate shaft (5), a second intermediate wheel (501) provided on the second intermediate shaft (5), and a seventh driving wheel (801) provided on the power output shaft of the motor (10); A seventh driving wheel (801) is provided on the power output shaft of the motor (10); The second intermediate wheel (501) is transmission-connected to the seventh driving wheel (801), and the second intermediate wheel (501) is transmission-connected to the first transmission assembly, the second transmission assembly, or the third transmission assembly.

5. The gearbox according to any one of claims 1 to 4, characterized in that: Also includes a power output shaft (7); The power output shaft (7) is provided with a sixth driven wheel (701); The output shaft (4) is provided with a sixth driving wheel (407); The sixth driving wheel (407) and the sixth driven wheel (701) are connected in transmission.

6. A driving device, characterized in that: The gearbox according to any one of claims 1 to 5, further comprising an engine (20) and a second control mechanism (1); The second control mechanism (1) is provided at the power output end of the engine (20), and the second control mechanism (1) is used to control the first input shaft (2) and the second input shaft (3) to selectively connect to the power output end of the engine (20).

7. The driving device according to claim 6, characterized in that: The second control mechanism (1) comprises a first clutch (101) provided between the power output end of the engine (20) and the first input shaft (2), and a second clutch (102) provided between the power output end of the engine (20) and the second input shaft (3).

8. A vehicle, characterized in that: The vehicle is provided with the driving device according to any one of claims 6 to 7.

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