Vehicle drive system and vehicle

Abstract

The utility model relates to vehicle drive technical field discloses vehicle drive system and vehicle, include: drive motor, parallel shaft speed reducer, drive motor with parallel shaft speed reducer's input end transmission connection, wheel side speed reducer, parallel shaft speed reducer's output with wheel side speed reducer transmission connection, wheel side speed reducer is suitable for driving wheel rotation, power takeoff mechanism, parallel shaft speed reducer with power takeoff mechanism transmission connection, suspension link seat, parallel shaft speed reducer connects in one side of suspension link seat, wheel side speed reducer connects in the other side of suspension link seat. The utility model discloses parallel shaft speed reducer and wheel side speed reducer export the power of drive motor to wheel, possess multistage reduction function, can realize bigger transmission ratio, can realize heavy load drive, and, through setting up power takeoff mechanism, can supply power to the upper loading operation device, satisfy the power demand of other functional parts of vehicle.

Description

Technical Field

[0001] This utility model relates to the field of vehicle drive technology, specifically to vehicle drive systems and vehicles. Background Technology

[0002] With the development of technology, various specialized work vehicles are widely used, thereby reducing the need for manual labor and increasing productivity. These vehicles are designed for specific operations, so their drive systems must provide not only the power to move the vehicle but also the power to enable it to operate normally. Furthermore, the harsh working conditions of these vehicles place a heavy load on the drive system, demanding even higher reliability. Utility Model Content

[0003] In view of this, the present invention provides a vehicle drive system and a vehicle that takes into account both the power take-off function of the vehicle drive system and the large load requirements.

[0004] In a first aspect, this utility model provides a vehicle drive system, comprising: a drive motor; a parallel shaft reducer, wherein the drive motor is drivenly connected to the input end of the parallel shaft reducer; a wheel-side reducer, wherein the output end of the parallel shaft reducer is drivenly connected to the wheel-side reducer, the wheel-side reducer being adapted to drive a wheel to rotate; a power take-off mechanism, wherein the parallel shaft reducer is drivenly connected to the power take-off mechanism; and a suspension coupling seat, wherein the parallel shaft reducer is connected to one side of the suspension coupling seat, and the wheel-side reducer is connected to the other side of the suspension coupling seat.

[0005] Beneficial effects: The drive motor outputs power to the wheels through the parallel shaft reducer and wheel-side reducer, which has a multi-stage reduction function, can achieve a large transmission ratio, and can achieve heavy-load drive; in addition, by setting up a power take-off mechanism, power can be supplied to the superstructure working device to meet the power requirements of other functional components of the vehicle.

[0006] In one optional embodiment, the parallel shaft reducer includes a first shaft, a second shaft, and a third shaft arranged in parallel. The first shaft and the second shaft are connected by a first gear set, and the second shaft and the third shaft are connected by a second gear set. The first shaft is connected to the output end of the drive motor, and the third shaft is connected to the input end of the wheel-side reducer.

[0007] Beneficial effects: By setting up a two-stage gear set with parallel axes, it is easier to achieve power splitting, which is suitable for applications that require power take-off.

[0008] In one optional embodiment, the power take-off mechanism includes a power take-off unit and a power take-off oil pump, the parallel shaft reducer and the power take-off unit are drivenly connected, and the power take-off unit and the power take-off oil pump are drivenly connected.

[0009] Beneficial effects: The power take-off unit transmits the power provided by the parallel shaft reducer to the power take-off oil pump, thereby providing hydraulic drive force to other working systems on the vehicle.

[0010] In one optional embodiment, the power take-off unit includes a power take-off gear and a power take-off shaft, the power take-off shaft and the third shaft are coaxially arranged, the power take-off gear is meshed with the first gear set, the power take-off gear and the power take-off shaft are drivenly connected, and the power take-off shaft and the power take-off oil pump are drivenly connected.

[0011] Beneficial effects: By using the meshing of the power take-off gear and the first gear set, the driving force of the parallel shaft reducer is transmitted to the power take-off unit, which facilitates the realization of the power take-off function.

[0012] In one optional embodiment, the wheel-side reducer includes an input shaft, which is coaxially arranged with the third shaft, and the output end of the third shaft is connected to the input end of the input shaft.

[0013] Beneficial effects: By coaxially setting and connecting the third shaft of the parallel shaft reducer and the input shaft of the wheel-side reducer, the connection method between the parallel shaft reducer and the wheel-side reducer is simple and reduces the space occupied.

[0014] In one alternative implementation, the vehicle drive system further includes a brake disposed at the input end of the input shaft.

[0015] Beneficial effects: By placing the brake at the input end of the wheel-side reducer, the braking force at the wheel end is equal to the braking force of the brake multiplied by the speed ratio of the wheel-side reducer. In this way, the braking force is amplified several times, reducing the size of the brake and thus reducing the size of the drive system.

[0016] In one alternative embodiment, the vehicle drive system further includes a tie rod, the two ends of which are connected to the parallel shaft reducer and the suspension coupling seat, respectively.

[0017] Beneficial effects: By setting tension bars, the stress on the parallel shaft reducer is improved, the structural strength of the parallel shaft reducer is enhanced, and the stable and reliable operation of the parallel shaft reducer is ensured.

[0018] In one optional embodiment, the vehicle drive system further includes a control arm, one end of which is connected to the suspension coupling seat, and the other end of which extends in a direction away from the suspension coupling seat. A plurality of control arms are provided, including a first control arm and a second control arm, the extension directions of which are arranged at a predetermined angle; and / or,

[0019] The vehicle drive system also includes a shock absorber cylinder, one end of which is connected to the suspension coupling seat, and the other end of which extends away from the suspension coupling seat.

[0020] Beneficial effects: By setting control arms and shock-absorbing cylinders that extend in different directions, the system can withstand the loads of the vehicle in different directions, reduce the vibration of the suspension coupling, and improve the overall stability of the vehicle drive system.

[0021] In one optional implementation, the drive motor is an explosion-proof motor.

[0022] Beneficial effect: Ensures the safety of vehicle drive systems in flammable and explosive environments.

[0023] Secondly, this utility model also provides a vehicle, including the aforementioned vehicle drive system. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a cross-sectional view of a vehicle drive system according to an embodiment of the present invention, along the axis of the drive motor and the axis of the wheel-side reducer.

[0026] Figure 2 for Figure 1 A three-dimensional diagram of the vehicle drive system shown.

[0027] Figure 3 for Figure 2 A schematic diagram of the vehicle drive system from another angle;

[0028] Figure 4 This is a schematic diagram of another vehicle drive system according to an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Drive motor; 2. Parallel shaft reducer; 21. First shaft; 22. Second shaft; 23. Third shaft; 24. First gear set; 241. First gear; 242. Second gear; 25. Second gear set; 251. Third gear; 252. Fourth gear; 3. Wheel-side reducer; 31. Input shaft; 4. Power take-off mechanism; 41. Power take-off unit; 411. Power take-off gear; 412. Power take-off shaft; 42. Power take-off oil pump; 5. Suspension coupling seat; 6. Brake; 7. Tie rod; 8. First control arm; 9. Second control arm; 10. Shock absorber cylinder; 11. Wheel rim. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.

[0033] According to an embodiment of the present invention, a vehicle drive system is provided, comprising: a drive motor 1; a parallel shaft reducer 2, wherein the drive motor 1 is drivenly connected to the input end of the parallel shaft reducer 2; a wheel-side reducer 3, wherein the output end of the parallel shaft reducer 2 is drivenly connected to the wheel-side reducer 3, and the wheel-side reducer 3 is adapted to drive the wheel to rotate; a power take-off mechanism 4, wherein the parallel shaft reducer 2 is drivenly connected to the power take-off mechanism 4; and a suspension coupling seat 5, wherein the parallel shaft reducer 2 is connected to one side of the suspension coupling seat 5, and the wheel-side reducer 3 is connected to the other side of the suspension coupling seat 5.

[0034] The vehicle drive system of this embodiment outputs the power of the drive motor 1 to the wheels through the parallel shaft reducer 2 and the wheel-side reducer 3. It has a multi-stage reduction function, can achieve a large transmission ratio, and can achieve heavy-load drive. Furthermore, by setting the power take-off mechanism 4, it can supply power to the superstructure working device to meet the power requirements of other functional components of the vehicle.

[0035] In addition, the suspension coupling seat 5 is located between the parallel shaft reducer 2 and the wheel-side reducer 3, which can support the entire vehicle drive system, reduce vehicle vibration under harsh road conditions, and improve driving comfort.

[0036] Specifically, in one embodiment, such as Figure 1As shown, the parallel shaft reducer 2 includes a first shaft 21, a second shaft 22, and a third shaft 23 arranged in parallel. The first shaft 21 and the second shaft 22 are connected by a first gear set 24, and the second shaft 22 and the third shaft 23 are connected by a second gear set 25. The first shaft 21 is connected to the output end of the drive motor 1, and the third shaft 23 is connected to the input end of the wheel-side reducer 3. By setting two stages of gear sets with parallel axes, power splitting is easier to achieve, making it suitable for applications requiring power take-off.

[0037] Furthermore, such as Figure 1 As shown, the first gear set 24 includes a first gear 241 and a second gear 242. The first gear 241 is coaxially connected to the first shaft 21, and the second gear 242 is coaxially connected to the second shaft 22. The first gear 241 and the second gear 242 are meshed together. The second gear set 25 includes a third gear 251 and a fourth gear 252. The third gear 251 is coaxially connected to the second shaft 22, and the fourth gear 252 is coaxially connected to the third shaft 23. The third gear 251 and the fourth gear 252 are meshed together. The drive motor 1 drives the first shaft 21 to rotate, which in turn drives the first gear 241 to rotate synchronously. Under the meshing action of the first gear 241 and the second gear 242, the second gear 242 rotates, thereby driving the second shaft 22 and the third gear 251 to rotate. Under the meshing action of the third gear 251 and the fourth gear 252, the fourth gear 252 rotates, which in turn causes the third shaft 23 to rotate. The third shaft 23 then transmits power to the wheel-side reducer 3.

[0038] In one embodiment, such as Figure 1 As shown, the power take-off mechanism 4 includes a power take-off unit 41 and a power take-off oil pump 42. The parallel shaft reducer 2 is driven by the power take-off unit 41, and the power take-off unit 41 is driven by the power take-off oil pump 42. The power take-off unit 41 transmits the power provided by the parallel shaft reducer 2 to the power take-off oil pump 42, thereby providing hydraulic drive force to other working systems on the vehicle.

[0039] Specifically, in one embodiment, such as Figure 1 As shown, the power take-off (PTO) 41 includes a power take-off gear 411 and a power take-off shaft 412. The power take-off shaft 412 and the third shaft 23 are coaxially arranged. The power take-off gear 411 meshes with the first gear set 24. The power take-off gear 411 and the power take-off shaft 412 are drive-connected, and the power take-off shaft 412 is drive-connected with the power take-off oil pump 42. By utilizing the meshing arrangement of the power take-off gear 411 and the first gear set 24, the driving force of the parallel shaft reducer 2 is transmitted to the PTO 41, facilitating the realization of the power take-off function.

[0040] Furthermore, such as Figure 1 As shown, the power take-off gear 411 and the second gear 242 are meshed together.

[0041] It is worth noting that, such as Figure 1As shown, the drive motor 1 and the power take-off 41 are located on the same side of the parallel shaft reducer 2 and their axes are parallel to each other.

[0042] In one embodiment, such as Figure 1 As shown, the wheel-side reducer 3 includes an input shaft 31, which is coaxially arranged with the third shaft 23. The output end of the third shaft 23 is connected to the input end of the input shaft 31. This arrangement simplifies the connection between the parallel shaft reducer 2 and the wheel-side reducer 3, by coaxially arranging and connecting the third shaft 23 of the parallel shaft reducer 2 and the input shaft 31 of the wheel-side reducer 3, thus reducing space requirements.

[0043] Furthermore, the wheel-side reducer 3 consists of a single-stage planetary gear reduction system. Its power is input from the sun gear, passed through the planetary gears, and then output through the ring gear, thereby driving the wheel-side reducer 3 to rotate. The wheel rim 11 is installed on the wheel-side reducer 3, which can be used to drive the vehicle.

[0044] In one embodiment, such as Figure 1 As shown, the vehicle drive system also includes a brake 6, which is located at the input end of the input shaft 31. By placing the brake 6 at the input end of the wheel-side reducer 3, the braking force at the wheel end is equal to the braking force of the brake 6 multiplied by the speed ratio of the wheel-side reducer 3. In this way, the braking force is amplified several times, reducing the size of the brake 6 and thus reducing the size of the drive system.

[0045] It should be noted that by placing the brake 6 between the two-stage reducers, the required torque of the brake 6 is significantly reduced when the braking torque of the wheels is the same. The brake 6 is also smaller in size, and the transmission system structure is more compact.

[0046] It is worth noting that in this embodiment, the brake 6 is a wet brake 6. A wet brake 6 is a common mechanical device used to provide reliable braking performance in vehicles, machinery, and industrial equipment. Compared to a dry brake 6, a wet brake 6 uses lubricating oil or hydraulic oil to reduce friction and wear, thereby achieving more efficient and smoother braking operation.

[0047] In one embodiment, such as Figure 2 As shown, the vehicle drive system also includes a tension rod 7, with its two ends connected to the parallel shaft reducer 2 and the suspension coupling seat 5, respectively. By setting the tension rod 7, the stress on the parallel shaft reducer 2 is improved, the structural strength of the parallel shaft reducer 2 is enhanced, and the stable and reliable operation of the parallel shaft reducer 2 is ensured.

[0048] It is worth noting that the parallel shaft reducer 2 has a long cantilever, and the added weight of the drive motor 1 can worsen the structural stress, potentially leading to structural failure under extreme conditions. Therefore, in this embodiment, a tension rod 7 is connected between the parallel shaft reducer 2 and the suspension coupling seat 5 to strengthen the parallel shaft reducer 2, ensuring that the parallel shaft reducer 2 can stably transmit the driving force provided by the drive motor 1 and guaranteeing the reliability of the entire vehicle drive system.

[0049] In one embodiment, such as Figure 4 As shown, the vehicle drive system also includes a control arm, one end of which is connected to the suspension coupling seat 5, and the other end of which extends in a direction away from the suspension coupling seat 5. Several control arms are provided, including a first control arm 8 and a second control arm 9. The extension directions of the first control arm 8 and the second control arm 9 are set at a predetermined angle.

[0050] It is worth noting that the other end of the control arm can be connected to other parts of the vehicle, such as the chassis.

[0051] Specifically, in this embodiment, the first control arm 8 extends laterally along the vehicle and is mainly used to bear the lateral load of the vehicle; the second control arm 9 is arranged at a certain angle to both the lateral and longitudinal directions of the vehicle and is mainly used to bear the lateral and longitudinal loads of the vehicle. Furthermore, there can be multiple first control arms 8 and second control arms 9, which are arranged vertically at intervals.

[0052] Of course, in other alternative implementations, control arms in other directions can also be provided.

[0053] In one embodiment, such as Figure 4 As shown, the vehicle drive system also includes a shock absorber cylinder 10. One end of the shock absorber cylinder 10 is connected to the suspension coupling seat 5, and the other end of the shock absorber cylinder 10 extends away from the suspension coupling seat 5. By setting control arms and shock absorber cylinders 10 that extend in different directions, the system can withstand the loads of the vehicle in different directions, reduce the vibration of the suspension coupling seat 5, and improve the overall stability of the vehicle drive system.

[0054] It is worth noting that the other end of the shock absorber cylinder 10 can be connected to other parts of the vehicle, such as the frame.

[0055] Specifically, in this embodiment, the shock-absorbing cylinder 10 extends vertically along the vehicle and is mainly used to bear the vertical load of the vehicle.

[0056] In one embodiment, the drive motor 1 is an explosion-proof motor. This configuration ensures the safety of the vehicle drive system in flammable and explosive environments.

[0057] It should be noted that explosion-proof motors are a type of motor that can be used in flammable and explosive environments without producing electrical sparks during operation. Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical, and chemical industries. In addition, they are also widely used in textiles, metallurgy, urban gas, transportation, grain and oil processing, papermaking, and pharmaceuticals.

[0058] It is worth noting that the vehicle drive system in this embodiment uses an explosion-proof motor and a wet brake 6, meeting explosion-proof requirements and resulting in a more compact structure. Therefore, the vehicle drive system of this embodiment can be applied to underground vehicles.

[0059] According to an embodiment of the present invention, another aspect provides a vehicle including the vehicle drive system described above.

[0060] The vehicle in this embodiment can be an underground vehicle, but it can also be other types of work vehicles, construction machinery, etc.

[0061] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A vehicle drive system, characterized in that, include: Drive motor (1); Parallel shaft reducer (2), the drive motor (1) is connected to the input end of the parallel shaft reducer (2); Wheel-side reducer (3), the output end of the parallel shaft reducer (2) is connected to the wheel-side reducer (3) for transmission, and the wheel-side reducer (3) is suitable for driving the wheel to rotate; The power take-off mechanism (4) is connected to the parallel shaft reducer (2) in a transmission connection; The suspension coupling seat (5) is connected to one side of the parallel shaft reducer (2) and the wheel-side reducer (3) is connected to the other side of the suspension coupling seat (5).

2. The vehicle drive system according to claim 1, characterized in that, The parallel shaft reducer (2) includes a first shaft (21), a second shaft (22) and a third shaft (23) arranged in parallel. The first shaft (21) and the second shaft (22) are connected by a first gear set (24), and the second shaft (22) and the third shaft (23) are connected by a second gear set (25). The first shaft (21) is connected to the output end of the drive motor (1), and the third shaft (23) is connected to the input end of the wheel-side reducer (3).

3. The vehicle drive system according to claim 2, characterized in that, The power take-off mechanism (4) includes a power take-off unit (41) and a power take-off oil pump (42). The parallel shaft reducer (2) and the power take-off unit (41) are connected in a transmission connection. The power take-off unit (41) and the power take-off oil pump (42) are also connected in a transmission connection.

4. The vehicle drive system according to claim 3, characterized in that, The power take-off (41) includes a power take-off gear (411) and a power take-off shaft (412). The power take-off shaft (412) and the third shaft (23) are coaxially arranged. The power take-off gear (411) and the first gear set (24) are meshed. The power take-off gear (411) and the power take-off shaft (412) are connected in a driving manner. The power take-off shaft (412) and the power take-off oil pump (42) are connected in a driving manner.

5. The vehicle drive system according to any one of claims 2 to 4, characterized in that, The wheel-side reducer (3) includes an input shaft (31), which is coaxially arranged with the third shaft (23), and the output end of the third shaft (23) is connected to the input end of the input shaft (31).

6. The vehicle drive system according to claim 5, characterized in that, The vehicle drive system also includes a brake (6), which is located at the input end of the input shaft (31).

7. The vehicle drive system according to any one of claims 1 to 4, characterized in that, The vehicle drive system also includes a tension rod (7), the two ends of which are connected to the parallel shaft reducer (2) and the suspension coupling seat (5), respectively.

8. The vehicle drive system according to any one of claims 1 to 4, characterized in that, The vehicle drive system further includes a control arm, one end of which is connected to the suspension coupling seat (5), and the other end of which extends away from the suspension coupling seat (5). Several control arms are provided, including a first control arm (8) and a second control arm (9), the extension directions of which are set at a predetermined angle; and / or, The vehicle drive system also includes a shock absorber cylinder (10), one end of which is connected to the suspension coupling seat (5), and the other end of which extends away from the suspension coupling seat (5).

9. The vehicle drive system according to any one of claims 1 to 4, characterized in that, The drive motor (1) is an explosion-proof motor.

10. A vehicle, characterized in that, The vehicle drive system includes any one of claims 1 to 9.

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