WO2022142169A1 - Dual-power tarpaulin driving system and vehicle - Google Patents

Abstract

A dual-power tarpaulin driving system (100) and a vehicle. The dual-power tarpaulin driving system (100) comprises: a hydraulic motor (10), which is connected to a tarpaulin mechanism (120); a valve control assembly (20), which is connected to the hydraulic motor (10); a first power assembly (30), which is connected to the valve control assembly (20); a second power assembly (40), which is connected to the valve control assembly (20); and a controller (50), which is connected to the valve control assembly (20), the first power assembly (30), and the second power assembly (40). The controller (50) acts by means of controlling the first power assembly (30) or the second power assembly (40) so as to provide power for the hydraulic motor (10), and the controller (50) acts by means of controlling the valve control assembly (20) so as to control the hydraulic motor (10) to rotate. According to different working conditions, the controller can select the first power assembly or the second power assembly to provide power for the hydraulic motor, thereby meeting requirements of a driver for the tarpaulin driving system under different working conditions.

Description

Dual Power Tarpaulin Drive System and Vehicle

This application claims the priority of the Chinese patent application with the application number 202011633089.7 and the invention titled "Dual-power tarpaulin drive system and vehicle" filed with the State Intellectual Property Office of China on December 31, 2020, the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the technical field of tarpaulin driving equipment for vehicles, and in particular, to a dual-power tarpaulin driving system and a vehicle.

Background technique

At present, in the related art, the drive mode of the tarpaulin drive system of the dump truck is motor drive, full hydraulic drive or electro-hydraulic drive, which leads to the relatively single drive mode of the tarpaulin drive system, which cannot meet the driver's ability to control the tarpaulin under different working conditions. cloth drive system requirements.

SUMMARY OF THE INVENTION

The present application aims to solve at least one of the technical problems existing in the prior art or related technologies.

Therefore, an object of the present application is to provide a dual-power tarpaulin driving system.

Another object of the present application is to provide a vehicle.

In order to achieve the above purpose, embodiments of the present application provide a dual-power tarpaulin driving system, including: a hydraulic motor, connected to the tarpaulin mechanism; a valve control assembly, connected to the hydraulic motor; and a first power assembly, connected to the valve control assembly The second power assembly is connected to the valve control assembly; the controller is connected to the valve control assembly, the first power assembly and the second power assembly; wherein, the controller controls the action of the first power assembly or the second power assembly to achieve The hydraulic motor provides power, and the controller controls the movement of the valve control assembly to control the rotation of the hydraulic motor.

In this technical solution, the controller can select the first power assembly or the second power assembly to provide power for the hydraulic motor according to different working conditions, so as to meet the driver's requirements for the tarpaulin drive system under different working conditions.

In addition, the dual-power tarpaulin drive system in the above-mentioned embodiments provided by the application can also have the following additional technical features:

In the above technical solution, the dual-power tarpaulin driving system further includes an oil tank, and the first power assembly and the second power assembly are communicated with the oil tank.

In this technical solution, hydraulic oil is stored in the oil tank, and the first power component and the second power component can pump the hydraulic oil in the oil tank to the hydraulic motor, which provides power for the hydraulic motor, thereby ensuring that the hydraulic motor can operate normally Rotate to drive the action of the tarpaulin mechanism, thereby ensuring that the tarpaulin can be closed or opened normally.

In any of the above technical solutions, the first power assembly includes a motor and a first oil pump, the motor is connected to the first oil pump and the controller, the first oil pump has a first oil inlet and a first oil outlet, and the first oil inlet It is communicated with the oil tank, and the first oil outlet is communicated with the valve control assembly.

In this technical solution, the first power component is an electric drive component, and the first oil pump is driven by the motor to work to provide power for the hydraulic motor. When the driving force and driving speed of the tarpaulin are not required, but the vehicle is required to control the action of the tarpaulin during driving, the controller can select the first power component to provide power for the hydraulic motor, so as to satisfy the driver's requirements under this working condition. Requirements for the tarpaulin drive system.

In any of the above technical solutions, the second power assembly includes: a power take-off, connected to the controller; a second oil pump, with a second oil inlet and a second oil outlet, the second oil inlet is communicated with the oil tank, and the second oil pump has a second oil inlet and a second oil outlet. The second oil outlet is communicated with the valve control assembly; one end of the connecting shaft is connected with the power take-off, and the other end is connected with the second oil pump.

In this technical solution, the second power component is a hydraulic drive component, and the power of the engine is obtained through the power take-off to drive the connecting shaft to rotate, and the connecting shaft can drive the second oil pump to provide power for the hydraulic motor. When the dump truck is in actual operation, the driving force and driving speed of the tarpaulin are highly required. The controller can select the second power component to provide power for the hydraulic motor, so as to meet the driver's requirements for the tarpaulin driving system under this working condition.

In any of the above technical solutions, the vehicle further includes a lift cylinder, the second power assembly further includes a third oil pump, the third oil pump is penetrated on the connecting shaft, and the third oil pump has a third oil inlet and a third oil outlet , the third oil inlet is communicated with the fuel tank, and the third oil outlet is communicated with the lift cylinder.

In this technical solution, the second power assembly obtains the power of the engine through the power take-off to drive the connecting shaft to rotate, and the connecting shaft can drive the action of the third oil pump to provide power for the lift cylinder, so that the second power assembly can simultaneously Hydraulic motors and lift cylinders provide power to ensure that the lift cylinders work properly.

In any of the above technical solutions, the hydraulic motor has a first control port and a second control port, and the valve control assembly includes: an oil inlet line, one end of which is connected to the first power assembly and the second power assembly; An oil port, a second oil port and a third oil port, the first oil port is connected to the other end of the oil inlet line; the first control line is connected to the first control port at one end and the second oil port at the other end; Two control lines, one end is connected with the second control port, and the other end is connected with the third oil port.

In this technical solution, the electromagnetic reversing valve can control the inflow of hydraulic oil from the first control line and the outflow from the second control line, or the inflow of hydraulic oil from the second control line and the outflow from the first control line. In this way, the hydraulic oil can be controlled to flow into the hydraulic motor from the first control port or the second control port, thereby controlling the rotation direction of the hydraulic motor, and then controlling the action of the tarpaulin mechanism to control the closing or opening of the tarpaulin.

In any of the above technical solutions, the valve control assembly further includes a filter, and the filter is arranged on the oil inlet line.

In this technical solution, the filter has the function of filtering hydraulic oil, thus ensuring that the hydraulic oil flowing into the hydraulic motor can meet the cleanliness requirement for use, thereby ensuring that the hydraulic motor can work normally.

In any of the above technical solutions, the valve control assembly further includes a relief valve, and the relief valve is arranged on the oil inlet line.

In this technical solution, the overflow valve has an overflow protection function, which can avoid the problem that the pipeline and parts of the valve control assembly are damaged due to excessive pressure, thereby ensuring that the valve control assembly can work normally.

In any of the above technical solutions, the dual-power tarpaulin drive system further includes a braking device, the braking device is connected to the valve control assembly, when the hydraulic motor is working, the braking device is in an unlocked state, and when the hydraulic motor is not working, the braking device in a locked state.

In this technical solution, when the hydraulic motor is working, the braking device is in an unlocked state, and when the hydraulic motor is not working, the braking device is in a locked state. In this way, the problem that the hydraulic motor is damaged due to the rotation of the hydraulic motor under the action of its own gravity is avoided, thereby prolonging the service life of the hydraulic motor. At the same time, when the cargo box is lifted, since the hydraulic motor is not locked, it will rotate under the influence of external force, which will cause the tarpaulin mechanism to slide down under the influence of its own gravity.

The technical solution of the second aspect of the present application provides a vehicle, the vehicle includes: a vehicle body; a lifting oil cylinder, which is arranged on the vehicle body; a tarpaulin mechanism, which is arranged on the vehicle body; The dual-power tarpaulin drive system is connected with the lift cylinder and the lift cylinder.

Since the vehicle provided by the technical solution of the second aspect of the present application includes the dual-power tarpaulin drive system of any one of the technical solutions of the first aspect, it has all the beneficial effects of any of the above-mentioned technical solutions, which will not be repeated here. .

In the above solution, the vehicle integrates a dual-power tarpaulin drive system, so that the vehicle has the function of automatically driving the tarpaulin action, thereby enhancing the function of the vehicle, thereby meeting the multi-functional requirements of the vehicle.

Additional aspects and advantages of the present application will become apparent in the description section below, or learned by practice of the present application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

1 shows a schematic diagram of the hydraulic control principle of the dual-power tarpaulin driving system according to an embodiment of the present application;

FIG. 2 shows a schematic structural diagram of a vehicle according to an embodiment of the present application.

Among them, the corresponding relationship between the reference numerals and the component names in Fig. 1 and Fig. 2 is:

10. Hydraulic motor; 20. Valve control assembly; 21. Relief valve; 22. Oil inlet line; 24. Electromagnetic reversing valve; 241, First oil port; 242, Second oil port; 243, Third oil port ; 26, the first control line; 28, the second control line; 29, the filter; 30, the first power assembly; 32, the motor; 34, the first oil pump; 40, the second power assembly; 42, the power take-off; 44, the second oil pump; 46, the connecting shaft; 48, the third oil pump; 50, the controller; 60, the oil tank; 70, the braking device; 72, the shuttle valve; ; 110, lift cylinder; 120, tarpaulin mechanism; 130, car body.

Detailed ways

In order to more clearly understand the above objects, features and advantages of the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific details disclosed below. Example limitations.

It should be noted that the vehicle in this application refers to a dump truck, and the dual-power tarpaulin drive system 100 of the present application is used to drive the tarpaulin mechanism 120 of the dump truck to act to control the opening or closing of the tarpaulin.

The dual power tarpaulin drive system 100 and vehicle according to some embodiments of the present application are described below with reference to FIGS. 1 and 2 .

As shown in FIG. 1 , the present application and the embodiments of the present application provide a dual-power tarpaulin driving system 100 for driving a tarpaulin mechanism 120 of a vehicle, including a hydraulic motor 10 , a valve control assembly 20 , and a first power assembly 30 , the second power assembly 40 and the controller 50 . The hydraulic motor 10 is connected with the tarpaulin mechanism 120 , the valve control assembly 20 is connected with the hydraulic motor 10 , and the first power assembly 30 is connected with the valve control assembly 20 . The second power assembly 40 is connected to the valve control assembly 20 . The controller 50 is connected with the valve control assembly 20 , the first power assembly 30 and the second power assembly 40 . The controller 50 provides power for the hydraulic motor 10 by controlling the action of the first power assembly 30 or the second power assembly 40 , and the controller 50 controls the rotation of the hydraulic motor 10 by controlling the action of the valve control assembly 20 .

In the above arrangement, the controller 50 can select the first power assembly 30 or the second power assembly 40 to provide power to the hydraulic motor 10 according to different working conditions, so as to meet the driver's requirements for the tarpaulin drive system under different working conditions.

Specifically, as shown in FIG. 1 , in the embodiment of the present application, the dual-power tarpaulin driving system 100 further includes an oil tank 60 , and the first power assembly 30 and the second power assembly 40 communicate with the oil tank 60 .

In the above arrangement, hydraulic oil is stored in the oil tank 60, and the first power assembly 30 and the second power assembly 40 can pump the hydraulic oil in the oil tank 60 to the hydraulic motor 10, thus providing power for the hydraulic motor 10, thereby ensuring the hydraulic pressure. The motor 10 can rotate normally to drive the tarpaulin mechanism 120 to act, thereby ensuring that the tarpaulin can be normally closed or opened.

Specifically, as shown in FIG. 1 , in the embodiment of the present application, the first power assembly 30 includes a motor 32 and a first oil pump 34 , the motor 32 is connected to the first oil pump 34 and the controller 50 , and the first oil pump 34 has a first oil pump 34 . An oil inlet and a first oil outlet, the first oil inlet communicates with the oil tank 60 , and the first oil outlet communicates with the valve control assembly 20 .

In the above arrangement, the first power assembly 30 is an electric drive assembly, and the first oil pump 34 is driven to work by the motor 32 to provide power for the hydraulic motor 10 . When the requirements for the driving force and driving speed of the tarpaulin are not high, but the vehicle is required to control the action of the tarpaulin during driving, the controller 50 can select the first power assembly 30 to provide power to the hydraulic motor 10, so as to meet the requirements of the work in this work. Under the circumstances, the driver's requirements for the tarpaulin drive system.

Specifically, as shown in FIG. 1 , in the embodiment of the present application, the second power assembly 40 includes a power take-off 42 , a second oil pump 44 and a connecting shaft 46 . The power take-off 42 is connected to the controller 50 , the second oil pump 44 has a second oil inlet and a second oil outlet, the second oil inlet communicates with the oil tank 60 , and the second oil outlet communicates with the valve control assembly 20 . One end of the connecting shaft 46 is connected to the power take-off 42 , and the other end is connected to the second oil pump 44 .

In the above arrangement, the second power assembly 40 is a hydraulic drive assembly. The power of the engine is obtained through the power take-off 42 to drive the connecting shaft 46 to rotate. The connecting shaft 46 can drive the second oil pump 44 to act and provide power for the hydraulic motor 10 . When the dump truck is in actual operation, the driving force and driving speed of the tarpaulin are highly required. The controller 50 can select the second power assembly 40 to provide power for the hydraulic motor 10, so as to satisfy the driver's demand for the tarpaulin driving system under this working condition. requirements.

It should be noted that, during the actual operation of the dump truck, the loaded dregs slightly exceed the height of the truck box, and the tarpaulin mechanism 120 with large action force and fast speed can push the dregs flat, so as to prevent the driver from manually leveling the soil again. The second power assembly 40 is selected to provide power to the hydraulic motor 10 .

Specifically, as shown in FIG. 1 , in the embodiment of the present application, the vehicle further includes a lift cylinder 110 , the second power assembly 40 further includes a third oil pump 48 , and the third oil pump 48 is penetrated on the connecting shaft 46 . The third oil pump 48 has a third oil inlet and a third oil outlet, the third oil inlet communicates with the oil tank 60 , and the third oil outlet communicates with the lift cylinder 110 .

In the above arrangement, the second power assembly 40 obtains the power of the engine through the power take-off 42 to drive the connecting shaft 46 to rotate, and the connecting shaft 46 can drive the third oil pump 48 to act to provide power for the lift cylinder 110, so that the second power The assembly 40 can provide power to the hydraulic motor 10 and the lift cylinder 110 at the same time, thereby ensuring that the lift cylinder 110 can work normally.

Specifically, as shown in FIG. 1 , in the embodiment of the present application, the hydraulic motor 10 has a first control port and a second control port, and the valve control assembly 20 includes an oil inlet line 22 , an electromagnetic reversing valve 24 , and a first control port. Line 26 and second control line 28 . Wherein, one end of the oil inlet line 22 is connected with the first power assembly 30 and the second power assembly 40 . The electromagnetic reversing valve 24 has a first oil port 241 , a second oil port 242 and a third oil port 243 , and the first oil port 241 is connected to the other end of the oil inlet line 22 . One end of the first control line 26 is connected to the first control port, and the other end is connected to the second oil port 242 . One end of the second control line 28 is connected to the second control port, and the other end is connected to the third oil port 243 .

In the above arrangement, the electromagnetic reversing valve 24 can control hydraulic oil to flow in from the first control line 26 and flow out from the second control line 28 , or control the hydraulic oil to flow in from the second control line 28 and flow out from the first control line 26 . In this way, hydraulic oil can be controlled to flow into the hydraulic motor 10 from the first control port or the second control port, thereby controlling the rotation direction of the hydraulic motor 10, and then controlling the action of the tarpaulin mechanism 120 to control the closing or opening of the tarpaulin.

Specifically, as shown in FIG. 1 , in the embodiment of the present application, the valve control assembly 20 further includes a filter 29 , and the filter 29 is provided on the oil inlet line 22 .

In the above arrangement, the filter 29 has the function of filtering hydraulic oil, thus ensuring that the hydraulic oil flowing into the hydraulic motor 10 can meet the cleanliness requirement for use, thereby ensuring that the hydraulic motor 10 can work normally.

Specifically, as shown in FIG. 1 , in the embodiment of the present application, the valve control assembly 20 further includes a relief valve 21 , and the relief valve 21 is arranged on the oil inlet line 22 .

In the above arrangement, the overflow valve 21 has an overflow protection function, which can avoid the problem that the pipeline and parts of the valve control assembly 20 are damaged due to excessive pressure, thereby ensuring that the valve control assembly 20 can work normally.

Specifically, as shown in FIG. 1 , in the embodiment of the present application, the dual-power tarpaulin drive system 100 further includes a braking device 70 . The braking device 70 is connected to the valve control assembly 20 . When the hydraulic motor 10 is working, the braking The device 70 is in an unlocked state, and when the hydraulic motor 10 is not working, the braking device 70 is in a locked state.

In the above arrangement, when the hydraulic motor 10 is working, the braking device 70 is in an unlocked state, and when the hydraulic motor 10 is not working, the braking device 70 is in a locked state. In this way, the problem of damage to the hydraulic motor 10 caused by the rotation of the hydraulic motor 10 under the action of its own gravity is avoided, thereby prolonging the service life of the hydraulic motor 10 . At the same time, when the cargo box is lifted, since the hydraulic motor 10 is not locked, it will rotate under the influence of external force, causing the tarpaulin to slide down under the influence of its own gravity by the tarpaulin mechanism 120 .

It should be noted that, as shown in FIG. 1 , in the embodiment of the present application, the braking device 70 includes a shuttle valve 72 and a driving oil cylinder 74 , the shuttle valve 72 has two inlets, and the two inlets are respectively connected with the first control pipeline 26 Connected with the second control pipeline 28, the shuttle valve 72 also has an outlet, the outlet is communicated with the driving oil cylinder 74, a spring is arranged in the cylinder of the driving oil cylinder 74, and the piston rod of the driving oil cylinder 74 is extended to the hydraulic pressure under the elastic force of the spring. The motor 10 is abutted, and the hydraulic motor 10 is locked. At this time, the braking device 70 is in a locked state, that is, an initial state. When the first control line 26 or the second control line 28 is fed with oil, the hydraulic motor 10 starts to work, and the driving oil cylinder 74 is also fed with oil, and the piston rod (brake piston or brake) shrinks and does not contact the hydraulic motor 10. The actuator 70 is in an unlocked state.

The working principle of the dual-power tarpaulin drive system 100 in the present application is described below:

1. Working principle when the vehicle is not running:

The controller 50 determines that the vehicle is in a non-driving state. When the driver operates the tarpaulin to work, under the control of the controller 50, the motor 32 cannot be powered, the first oil pump 34 does not work, the power take-off 42 works, and the output speed is The second oil pump 44 and the third oil pump 48 form a double gear pump. The second oil pump 44 outputs high-pressure oil, and reaches the electromagnetic reversing valve 24 through the one-way valve and the filter 29 . If the electromagnetic reversing valve 24 is in the left position or the right position, the hydraulic motor 10 can be rotated to drive the tarpaulin mechanism 120 to work. If the electromagnetic reversing valve 24 is in the neutral position, the high pressure oil is unloaded, and the tarpaulin mechanism 120 does not act.

2. Working principle when the vehicle is running:

The controller 50 determines that the vehicle is in a driving state. When the driver operates the tarpaulin to work, under the control of the controller 50, the power take-off 42 cannot work, the motor 32 is powered on, and the first oil pump 34 works. The first oil pump 34 outputs high pressure oil, and reaches the electromagnetic reversing valve 24 through the one-way valve and the filter 29 . If the electromagnetic reversing valve 24 is in the left position or the right position, the hydraulic motor 10 can be rotated to drive the tarpaulin mechanism 120 to work. If the electromagnetic reversing valve 24 is in the neutral position, the high pressure oil is unloaded, and the tarpaulin mechanism 120 does not act.

It should be noted that the controller 50 is set through the control logic, and the motor 32 and the power take-off 42 must not work at the same time.

As shown in FIG. 2, the present application also provides a vehicle, the vehicle includes a vehicle body 130, a lift cylinder 110, a tarpaulin mechanism 120, and the dual-power tarpaulin drive system 100 according to any one of the embodiments of the first aspect, The dual power tarpaulin drive system 100 is connected with the lift cylinder 110 and the lift cylinder 110 .

In the above setting, the vehicle integrates the dual-power tarpaulin drive system 100, so that the vehicle has the function of automatically driving the tarpaulin action, thereby enhancing the function of the vehicle, thereby meeting the multi-functional requirements of the vehicle.

Since the vehicle provided by the technical solution of the second aspect of the present application includes the dual-power tarpaulin drive system 100 of any one of the embodiments of the first aspect, it has all the beneficial effects of any of the above-mentioned embodiments, which will not be omitted here. Repeat.

The dual power tarpaulin drive system 100 and vehicle of the present application have the following advantages:

1. The present application has the advantages that the tarpaulin mechanism 120 adopts both full hydraulic power drive and pure electric drive.

2. When the second power component 40 is fully hydraulically driven, the tarpaulin mechanism 120 has a large action force and a fast speed. When the muck is slightly higher than the car box, the tarpaulin mechanism 120 with a large action force and a fast speed can push the muck flat, avoiding The driver manually went to level the soil again.

3. When the first power component 30 is driven by the motor, the tarpaulin can be operated regardless of whether the vehicle is running or stopped, avoiding the problem that the driver needs to stop and wait for the tarpaulin to be opened or closed after loading and unloading the soil before driving. Improved work efficiency.

From the above description, it can be seen that the controller 50 can select the first power assembly 30 or the second power assembly 40 according to different working conditions to provide power for the hydraulic motor 10, so as to satisfy the driver's need for the tarpaulin under different working conditions. drive system requirements.

In this application, the terms "first", "second" and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance; the term "plurality" refers to two or two above, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be It is directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the orientations shown in the accompanying drawings Or the positional relationship is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or unit must have a specific direction, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiment", etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in this application at least one embodiment or example of . In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (10)

1. A dual-power tarpaulin drive system for driving a tarpaulin mechanism of a vehicle, comprising:

   a hydraulic motor, connected with the tarpaulin mechanism;

   a valve control assembly, connected with the hydraulic motor;

   a first power assembly, connected with the valve control assembly;

   a second power assembly connected to the valve control assembly;

   a controller connected to the valve control assembly, the first power assembly and the second power assembly;

   Wherein, the controller provides power to the hydraulic motor by controlling the action of the first power assembly or the second power assembly, and the controller controls the hydraulic motor by controlling the action of the valve control assembly turn.
2. The dual power tarpaulin drive system of claim 1 , wherein the dual power tarpaulin drive system further comprises a fuel tank, the first power assembly and the second power assembly in communication with the fuel tank.
3. The dual-power tarpaulin drive system according to claim 2, wherein the first power assembly comprises a motor and a first oil pump, the motor is connected with the first oil pump and the controller, and the first oil pump A first oil inlet and a first oil outlet are provided, the first oil inlet is communicated with the oil tank, and the first oil outlet is communicated with the valve control assembly.
4. The dual power tarpaulin drive system of claim 2, wherein the second power assembly comprises:

   a power take-off, connected with the controller;

   The second oil pump has a second oil inlet and a second oil outlet, the second oil inlet is communicated with the oil tank, and the second oil outlet is communicated with the valve control assembly;

   One end of the connecting shaft is connected with the power take-off, and the other end is connected with the second oil pump.
5. The dual-power tarpaulin drive system according to claim 4, wherein the vehicle further comprises a lift cylinder, the second power assembly further comprises a third oil pump, and the third oil pump is penetrated on the connecting shaft , the third oil pump has a third oil inlet and a third oil outlet, the third oil inlet is communicated with the oil tank, and the third oil outlet is communicated with the lift cylinder.
6. The dual power tarpaulin drive system according to any one of claims 1 to 5, wherein the hydraulic motor has a first control port and a second control port, and the valve control assembly comprises:

   an oil inlet pipeline, one end of which is connected with the first power assembly and the second power assembly;

   The electromagnetic reversing valve has a first oil port, a second oil port and a third oil port, the first oil port is connected with the other end of the oil inlet line;

   a first control pipeline, one end is connected with the first control port, and the other end is connected with the second oil port;

   One end of the second control line is connected to the second control port, and the other end is connected to the third oil port.
7. The dual-power tarpaulin driving system according to claim 6, wherein the valve control assembly further comprises a filter, and the filter is provided on the oil inlet line.
8. The dual-power tarpaulin driving system according to claim 6, wherein the valve control assembly further comprises a relief valve, and the relief valve is arranged on the oil inlet line.
9. The dual-power tarpaulin driving system according to any one of claims 1 to 5, wherein the dual-power tarpaulin driving system further comprises a braking device, the braking device is connected with the valve control assembly, and the When the hydraulic motor is working, the braking device is in an unlocked state, and when the hydraulic motor is not working, the braking device is in a locked state.
10. A vehicle, wherein the vehicle comprises:

    body;

    A lifting oil cylinder is arranged on the vehicle body;

    a tarpaulin mechanism, arranged on the vehicle body;

    The dual-power tarpaulin driving system according to any one of claims 1 to 9, the dual-power tarpaulin driving system is connected with the lift cylinder and the lift cylinder.

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