Integrated driving motor system and new energy commercial vehicle

Abstract

The invention relates to an integrated driving motor system and a new energy commercial vehicle. The integrated driving motor system comprises a driving motor, a reduction gearbox and a power takeoff. The driving motor, the reduction gearbox and the power takeoff are of an integrated structure; the reduction gearbox comprises an input gear a, a reduction gear, an output gear b, a meshing sleeve d and an output gear c, and the input gear a, the reduction gear and the output gear b are meshed; the reduction gear and the output gear b are of a parallel transmission structure. The first shifting fork is driven by the first pneumatic execution valve to push the meshing sleeve d to be separated from the reduction gear; the power takeoff comprises an input gear e, an input gear f, a meshing sleeve g, an output gear h and an output gear i; the second pneumatic execution valve drives the second shifting fork to push the meshing sleeve g to be meshed with the input gear e. The driving motor, the power takeoff and the reduction gearbox are designed in an integrated mode, the driving motor achieves torque increasing through the reduction gearbox to meet the power requirement of the vehicle, the vehicle arrangement space is saved, pipeline harnesses are reduced, the vehicle reliability is improved, and meanwhile the system cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy commercial vehicles, and in particular to a dual-motor electric drive axle power transmission system and a new energy commercial vehicle. Background Art

[0002] New energy commercial vehicles have been identified as the development focus of my country's automobile industry. Pure electric vehicles have the characteristics of zero emissions, low noise, and energy saving at low speeds, making them very suitable for closed scenarios such as ports and fixed routes in cities.

[0003] Port offset terminal vehicles and pure electric sanitation vehicles are common models of new energy commercial vehicles, with common working speeds of 5km / h to 40km / h. Some models adopt the technical route of direct drive of the powertrain drive motor. When there is a need for upper-mounted power taking, an independent upper-mounted motor solution is usually adopted. This solution is reliable and highly versatile, but it occupies more space for the entire vehicle layout, has many high-pressure, low-pressure and cooling pipe harnesses, and is relatively expensive. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and propose an integrated drive motor system and a new energy commercial vehicle. The drive motor, power take-off and reduction gearbox are integrated into a design. The drive motor increases torque through the reduction gearbox to meet the power requirements of the vehicle. The power take-off eliminates the original independent upper-mounted motor to save vehicle layout space, reduce pipeline harnesses, improve vehicle reliability, and also reduce system costs.

[0005] In order to solve the problems in the above background technology, the present invention is implemented by the following technical solutions:

[0006] An integrated drive motor system includes a drive motor, a reduction gearbox and a power take-off;

[0007] The drive motor, the reduction gearbox and the power take-off are integrated into one structure; the reduction gearbox includes an input gear a, a reduction gear, an output gear b, a meshing sleeve d and an output gear c, and the input gear a, the reduction gear and the output gear b are meshed; the reduction gear and the output gear b are in a parallel transmission structure; the reduction gear is constantly meshed with the output gear c and the meshing sleeve d, and the first fork is driven by the first pneumatic actuator valve, and the first fork pushes the meshing sleeve d to separate from the reduction gear;

[0008] The power take-off includes an input gear e, an input gear f, a meshing sleeve g, an output gear h and an output gear i; the input gear e and the meshing sleeve g are normally open structures, the second pneumatic actuator valve drives the second fork, and the second fork pushes the meshing sleeve g to mesh with the input gear e.

[0009] Preferably, the input gear f and the output gear i are of an integrated structure or are fixedly connected via a gear shaft.

[0010] Preferably, the integrated drive motor system includes a driving mode, a parking assist mode and a driving power take-off mode;

[0011] The driving mode is: the power take-off is disconnected, the input gear e is separated from the meshing sleeve g, the reduction gear and the output gear c are meshed with the meshing sleeve d at the same time, and the output torque of the driving motor is output from the output gear h;

[0012] The parking assist mode is as follows: the power take-off is turned on, the second pneumatic actuator valve causes the second shift fork to push the meshing sleeve g to mesh with the input gear e; the first pneumatic actuator valve separates the reduction gear from the meshing sleeve d through the first shift fork, and the output torque of the driving motor is output from the output gear h;

[0013] The driving power take-off mode is as follows: the power take-off is turned on, the second pneumatic actuator valve pushes the meshing sleeve g to mesh with the input gear e through the second shift fork, the reduction gear and the output gear c are simultaneously meshed with the meshing sleeve d, and the output torque of the driving motor is simultaneously output from the output gear c and the output gear h.

[0014] A new energy commercial vehicle employs any of the above-mentioned integrated drive motor systems.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects:

[0016] The drive motor, power take-off and reduction gearbox are integrated into the design. The drive motor increases torque through the reduction gearbox to meet the vehicle's power requirements. The power take-off eliminates the original independent upper-mounted motor to save vehicle layout space, reduce wiring harnesses, improve vehicle reliability, and reduce system costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural principle diagram of the present invention;

[0018] Figure 2 It is a principle diagram of the driving power taking mode of the present invention;

[0019] Figure 3 It is a schematic diagram of the parking assist mode of the present invention.

[0020] Notes on the attached drawings:

[0021] 1. Driving motor; 2. Speed ​​reducer; 21. Input gear a; 22. Speed ​​reduction gear; 23. Output gear b; 24. Engaging sleeve d; 25. Output gear c; 26. First shift fork; 27. First pneumatic actuator valve; 3. Power take-off; 31. Input gear e; 32. Input gear f; 33. Engaging sleeve g; 34. Output gear h; 35. Output gear i; 36. Second shift fork; 37. Second pneumatic actuator valve. DETAILED DESCRIPTION

[0022] Embodiment 1

[0023] As shown in 1 , an integrated drive motor system includes a drive motor 1 , a reduction gearbox 2 and a power take-off 3 ;

[0024] The driving motor 1, the reduction gear box 2 and the power take-off 3 are integrated into an integrated structure; the reduction gear box 2 includes an input gear a21, a reduction gear 22, an output gear b23, a meshing sleeve d24 and an output gear c25, and the input gear a21, the reduction gear 22 and the output gear b23 are meshed; the reduction gear 22 and the output gear b23 are in a parallel transmission structure; the reduction gear 22 is constantly meshed with the output gear c25 and the meshing sleeve d24, and the first pneumatic actuator valve 27 drives the first fork 26, and the first fork 26 pushes the meshing sleeve d24 to separate from the reduction gear 22;

[0025] The power take-off 3 comprises an input gear e31, an input gear f32, a meshing sleeve g33, an output gear h34 and an output gear i35; the input gear e31 and the meshing sleeve g33 are normally open structures, the second pneumatic actuator valve 37 drives the second fork 36, and the second fork 36 pushes the meshing sleeve g33 to mesh with the input gear e31.

[0026] The input gear f32 and the output gear i35 are of an integrated structure or are fixedly connected via a gear shaft.

[0027] The integrated drive motor system includes driving mode, parking assist mode and driving power take-off mode;

[0028] The driving mode is: the power take-off 3 is disconnected, the input gear e31 is separated from the meshing sleeve g33, the reduction gear 22 and the output gear c25 are meshed with the meshing sleeve d24 at the same time, and the output torque of the driving motor 1 is output from the output gear h34.

[0029] Embodiment 2

[0030] like Figure 2 As shown, the parking assist mode is: the power take-off 3 is turned on, the second pneumatic actuator valve 37 enables the second fork 36 to push the meshing sleeve g33 to mesh with the input gear e31; the first pneumatic actuator valve 27 separates the reduction gear 22 from the meshing sleeve d24 through the first fork 26, and the output torque of the drive motor 1 is output from the output gear h34.

[0031] Embodiment 3

[0032] like Figure 3As shown, the driving power take-off mode is: the power take-off 3 is turned on, the second pneumatic actuator valve 37 pushes the meshing sleeve g33 to mesh with the input gear e31 through the second fork 36, the reduction gear 22 and the output gear c25 are simultaneously meshed with the meshing sleeve d24, and the output torque of the driving motor 1 is simultaneously output from the output gear c25 and the output gear h34.

[0033] Embodiment 4

[0034] A new energy commercial vehicle, using any of the above integrated drive motor systems.

Claims

1. An integrated drive motor system, characterized in that: It comprises a driving motor (1), a reduction gearbox (2) and a power take-off (3); The drive motor (1), the reduction gear box (2) and the power take-off (3) are integrated into an integral structure; the reduction gear box (2) comprises an input gear a (21), a reduction gear (22), an output gear b (23), a meshing sleeve d (24) and an output gear c (25); the input gear a (21), the reduction gear (22) and the output gear b (23) are meshed; the reduction gear (22) and the output gear b (23) are in a parallel transmission structure; the reduction gear (22) is constantly meshed with the output gear c (25) and the meshing sleeve d (24), and the first pneumatic actuator valve (27) drives the first shift fork (26), and the first shift fork (26) pushes the meshing sleeve d (24) to separate from the reduction gear (22); The power take-off (3) comprises an input gear e (31), an input gear f (32), a meshing sleeve g (33), an output gear h (34) and an output gear i (35); the input gear e (31) and the meshing sleeve g (33) are normally open structures, a second pneumatic actuator valve (37) drives a second shift fork (36), and the second shift fork (36) pushes the meshing sleeve g (33) to mesh with the input gear e (31).

2. The integrated drive motor system according to claim 1, characterized in that: The input gear f (32) and the output gear i (35) are integrated structures or fixedly connected via a gear shaft.

3. The integrated drive motor system according to claim 2, characterized in that: The integrated drive motor system includes a driving mode, a parking assist mode and a driving power take-off mode; The driving mode is as follows: the power take-off (3) is disconnected, the input gear e (31) is separated from the meshing sleeve g (33), the reduction gear (22) and the output gear c (25) are simultaneously meshed with the meshing sleeve d (24), and the output torque of the drive motor (1) is output from the output gear h (34); The parking assist mode is as follows: the power take-off (3) is turned on, the second pneumatic actuator valve (37) causes the second shift fork (36) to push the meshing sleeve g (33) to mesh with the input gear e (31); the first pneumatic actuator valve (27) separates the reduction gear (22) from the meshing sleeve d (24) through the first shift fork (26), and the output torque of the drive motor (1) is output from the output gear h (34); The driving power take-off mode is as follows: the power take-off (3) is turned on, the second pneumatic actuator valve (37) pushes the meshing sleeve g (33) to mesh with the input gear e (31) through the second shift fork (36), the reduction gear (22) and the output gear c (25) are simultaneously meshed with the meshing sleeve d (24), and the output torque of the driving motor (1) is simultaneously output from the output gear c (25) and the output gear h (34).

4. A new energy commercial vehicle, characterized in that: An integrated drive motor system as described in any one of claims 1 to 3 is used.

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