Power systems and operating machinery

Abstract

The present invention relates to the technical field of power equipment, specifically a power system and operating machine. The power system comprises an internal combustion engine power unit, a power take-off clutch, a motor, and a transmission case. The input end of the power take-off clutch is transmission-connected to the output end of the internal combustion engine power unit, and the output end of the power take-off clutch is provided with a power take-off shaft. At least two motors are provided. The transmission case is connected to both the power take-off shaft and each motor to simultaneously transmit power between each motor and the power take-off shaft. The power system and operating machine provided by the present invention occupy less space, help reduce energy consumption, avoid motor damage, and improve safety. Furthermore, the present application solution has lower installation and use costs.

Description

Technical Field

[0001] The present invention relates to the technical field of power equipment, and in particular to a power system and an operating machine. Background Art

[0002] With technological advancements, electrification is becoming a growing trend in construction machinery, including construction cranes. Existing construction machinery uses traditional internal combustion engines, which present numerous drawbacks and drawbacks. The toxic and harmful gases emitted during operation pollute the environment, contradicting current environmental protection principles. Furthermore, their high fuel consumption and low economic efficiency hinder sustainable energy development.

[0003] Currently, cranes and other operating machines mainly use engines as a power source for onboard operations. Operating machines with this structure have low fuel economy and cause serious environmental pollution. Using electricity as a power source can overcome the above problems.

[0004] Currently, cranes and other operating machines mainly use engines as a power source for onboard operations. Operating machines with this structure have low fuel economy and cause serious environmental pollution. Using electricity as a power source can overcome the above problems.

[0005] While pure electric power is the future trend when it comes to using electricity as a power source for onboard operations, it currently struggles to gain market recognition and consumer acceptance due to factors such as high battery costs, inconvenient charging, and battery safety. Therefore, hybrid technology has emerged.

[0006] Existing hybrid technologies utilize electricity as a power source for onboard operations in two ways: one involves adding a motor in series between the power take-off port and the oil pump, which places rigid demands on the vehicle's layout space. The other involves adding a separate motor and hydraulic system wiring for onboard operations. Adding a separate motor to the vehicle itself presents poor compatibility, poses significant safety risks, and occupies a significant amount of space within the vehicle. Therefore, in existing hybrid technologies, motor placement is constrained by installation space, making adaptive adjustments impossible when a single motor cannot meet power requirements. Summary of the Invention

[0007] The present invention provides a power system and a working machine, which are used to solve the problem in the prior art that the arrangement of the motor of the hybrid power system is limited by the installation space.

[0008] The present invention provides a power system, comprising:

[0009] Internal combustion engine power unit;

[0010] A power take-off clutch device, wherein the input end of the power take-off clutch device is transmission-connected to the output end of the internal combustion engine power device, and the output end of the power take-off clutch device is provided with a power take-off shaft;

[0011] At least two motors;

[0012] A transmission box is connected to the power take-off shaft and each of the motors at the same time to simultaneously realize transmission between each of the motors and the power take-off shaft.

[0013] A power system provided according to the present invention further includes:

[0014] At least two motor clutch devices are provided corresponding to the motors, and each motor is connected to the transmission box through the corresponding motor clutch device.

[0015] According to a power system provided by the present invention, the transmission box includes a box body and a first input member, an intermediate transmission member and a second input member rotatably arranged in the box body, the first input member is coaxially fixed with the power take-off shaft, the intermediate transmission member is respectively connected to the first input member and the second input member, and the rotating shaft of the second input member is connected to the rotating shaft of the motor through the motor clutch device.

[0016] According to a power system provided by the present invention, the housing includes a first housing and a second housing, the first input member and the intermediate transmission member are located in the first housing, the second input member is located in the second housing, the second housing is rotatably connected to the first housing, and the angle is fixed by a positioning member.

[0017] According to a power system provided by the present invention, the positioning member is a bolt, a plurality of the positioning members are arranged at equal angles around the adapter axis of the second box body, and the positioning members are respectively threadedly connected to the first box body and the second box body.

[0018] According to a power system provided by the present invention, the rotating shaft of the intermediate transmission member serves as a connecting shaft between the first housing and the second housing.

[0019] According to a power system provided by the present invention, the first input member, the second input member and the intermediate transmission member are respectively gear structures, the rotating shafts of the intermediate transmission member and the second input member are parallel to the power take-off shaft, more than two second input members are provided in a direction perpendicular to the power take-off shaft, adjacent second input members are meshed with each other, and the intermediate transmission member is respectively meshed with the first input member and the adjacent second input member.

[0020] According to a power system provided by the present invention, the rotating shaft of the intermediate transmission member is parallel to the power take-off shaft, the rotating shaft of the second input member is perpendicular to the power take-off shaft, and more than two second input members are provided along a direction parallel to the power take-off shaft, and adjacent second input members are meshed with each other, and the intermediate transmission member is meshed with the first input member and is connected to the adjacent second input member through a bevel gear set.

[0021] According to a power system provided by the present invention, it also includes a motor controller, which is respectively connected to the vehicle controller, the motor and the motor clutch device for signal communication, so as to be suitable for controlling the motor clutch device and the motor according to the control instructions of the vehicle controller.

[0022] The present invention also provides an operating machine, comprising a travel drive axle, an oil pump, a hydraulic actuator and a power system as described in any one of the above items, wherein the travel drive axle is connected to the output end of the internal combustion engine power unit, the input end of the oil pump is connected to the power take-off shaft, and the hydraulic actuator is connected to the output end of the oil pump.

[0023] The power system and operating machinery provided by the present invention connect the motor and the power take-off shaft through a transmission box, and can simultaneously utilize more than two motors to provide power for the same hydraulic system to meet the power requirements of on-vehicle operations. In addition, the number of motors installed will not be limited by the size of the space between the power take-off port and the oil pump, nor will the space occupied by the entire vehicle be increased due to the need to increase the hydraulic system accordingly. Compared with the form of separately installing motors and hydraulic system wiring, the present application solution occupies less space and has lower installation and use costs, which is conducive to reducing energy consumption, avoiding motor damage, and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is one of the overall structural diagrams of a power system provided by the present invention;

[0026] Figure 2 yes Figure 1 Schematic diagram of the transmission case structure from perspective A shown in FIG;

[0027] Figure 3 This is the second schematic diagram of the overall structure of a power system provided by the present invention;

[0028] Figure numerals: 1. low-voltage power supply; 2. vehicle controller; 3. engine; 4. clutch; 5. gearbox; 6. power take-off clutch device; 7. main drive shaft; 8. power take-off shaft; 9. driving axle; 10. oil pump; 11. hydraulic actuator; 12. external power grid; 13. motor controller; 14. motor; 15. motor clutch device; 16. transmission box; 17. second input member; 18. intermediate transmission member; 19. first input member; 20. first housing; 21. second housing; 22. positioning member; 23. first bevel gear; 24. second bevel gear. DETAILED DESCRIPTION

[0029] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0031] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0032] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0033] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0034] The following combination Figures 1 to 3 The power system of an embodiment of the present invention is described, wherein: Figure 1 This is one of the overall structural diagrams of a power system provided by the present invention; Figure 2 yes Figure 1 Schematic diagram of the transmission box structure from the perspective of middle A, Figure 2 The middle dashed line indicates two optional positions of the second box; Figure 3 This is the second overall structural diagram of a power system provided by the present invention.

[0035] The power system according to an embodiment of the present invention includes an internal combustion engine power unit, a power take-off clutch device 6, a motor 14, and a transmission case 16. The input end of the power take-off clutch device 6 is in driving connection with the output end of the internal combustion engine power unit. A power take-off shaft 8 is provided at the output end of the power take-off clutch device 6, and the power take-off shaft 8 is adapted to connect to an oil pump 10. At least two motors 14 are provided, and a transmission case 16 is connected to both the power take-off shaft 8 and each motor 14, enabling simultaneous transmission between each motor 14 and the power take-off shaft 8.

[0036] It can be understood that in some optional embodiments, the motor 14 actively runs and outputs power to the power take-off shaft 8 through the transmission box 16. At this time, the motor 14 acts as an electric motor; in other optional embodiments, the motor 14 can be used as a generator. When the internal combustion engine power device drives the power take-off shaft 8 to rotate, the transmission box 16 can transmit power to the motor 14 to use the motor 14 to generate electricity.

[0037] In some embodiments of the present invention, the power system further includes a motor clutch device 15. At least two motor clutch devices 15 are provided corresponding to the motors 14. Each motor 14 is connected to a transmission case 16 via a corresponding motor clutch device 15. The input end of the motor clutch device 15 is connected to the motor shaft of the motor 14, and the output end of the motor clutch device 15 is connected to the input end of the transmission case 16. The output end of the transmission case 16 is connected to the power take-off shaft 8. By controlling the opening and closing of each motor clutch device 15, any motor 14 can be operated individually or any number of motors 14 can be operated in coordination, thereby adapting to the operational requirements under different working conditions.

[0038] The power system of the embodiment of the present invention, when the power take-off clutch device 6 is closed, can drive the power take-off shaft 8 to rotate through the internal combustion engine power device, and then drive the oil pump 10 to operate, providing the power required for the vehicle operation. At this time, the connection between the motor 14 and the transmission box 16 is disconnected through the motor clutch device 15; when the power take-off clutch device 6 is closed, the power take-off shaft 8 is disconnected from the internal combustion engine power device. At this time, the motor clutch device 15 is closed to connect the motor 14 to the transmission box 16. The running motor 14 can drive the power take-off shaft 8 to rotate, and then drive the oil pump 10 to operate, providing the power required for the vehicle operation.

[0039] The power system of the embodiment of the present invention provides stable hydraulic system pressure by controlling the opening and closing states of the motor clutch device 15 , and can protect the motor 14 by disconnecting the motor clutch device 15 when the motor 14 is overloaded.

[0040] In the embodiment of the present invention, the motor clutch device 15 can adopt the following different forms:

[0041] 1) The function is realized by the shift fork and the combination sleeve structure, and the control is realized by the action motor;

[0042] 2) The function is realized through a multi-plate clutch structure and controlled by an electromagnetic hydraulic valve;

[0043] 3) The function is realized through the electric coupler structure, and the current size and direction are controlled.

[0044] Of course, the motor clutch device 15 of the embodiment of the present invention may also adopt any other form of clutch 4. As long as the scheme can realize the opening and closing control of the connection structure between the motor 14 and the transmission box 16, it should be within the protection scope of the embodiment of the present invention.

[0045] The power system according to an embodiment of the present invention further includes a motor controller 13. The motor controller 13 is adapted to be electrically connected to an external power grid 12 or a battery, and is signal-connected to the vehicle controller 2, the motor 14, and the motor clutch device 15, respectively, so as to control the motor clutch device 15 and the motor 14 according to control instructions from the vehicle controller 2. The vehicle controller 2 generates control instructions based on information such as the operating status of the internal combustion engine power unit, the power take-off clutch device 6, and the motor clutch device 15, as well as actual operating conditions. The motor controller 13 controls the motor clutch device 15 and the motor 14 according to the control instructions, thereby ensuring a reasonable power supply and preventing equipment damage.

[0046] In some embodiments of the present invention, transmission case 16 includes a housing, and a first input member 19, an intermediate transmission member 18, and a second input member 17 rotatably disposed therein. The first input member 19 is coaxially fixed to the power take-off shaft 8, and the intermediate transmission member 18 is drivingly connected to the first input member 19 and the second input member 17, respectively. The rotating shaft of the second input member 17 is drivingly connected to the rotating shaft of the motor 14 via the motor clutch 15. When the motor clutch 15 is closed, the power of the motor 14 is sequentially transmitted through the second input member 17, the intermediate transmission member 18, and the first input member 19 to the power take-off shaft 8, providing power for the vehicle boarding operation.

[0047] The intermediate transmission member 18 and the second input member 17 as well as the intermediate transmission member 18 and the first input member 19 can be connected to each other by means of gear transmission, chain transmission, belt transmission or the like.

[0048] In some embodiments of the present invention, the first input member 19, the second input member 17, and the intermediate transmission member 18 are gear structures, and can be arranged in the following two forms:

[0049] like Figure 1 As shown, in some optional embodiments, the rotational axes of the intermediate transmission member 18 and the second input member 17 are parallel to the PTO shaft 8. Two or more second input members 17 are provided perpendicular to the PTO shaft 8, with adjacent second input members 17 meshing with each other. The intermediate transmission member 18 meshes with the first input member 19 and the adjacent second input member 17, respectively. In this arrangement, the motor shaft of the motor 14 is parallel to the PTO shaft 8, and the motor 14 can be arranged parallel to the PTO shaft 8 in a direction perpendicular to the PTO shaft 8.

[0050] Furthermore, the same second input member 17 is simultaneously connected to two symmetrically arranged motors 14 through two motor clutch devices 15. The two motors 14 can operate independently to provide power for the second input member 17, or can operate simultaneously to provide power for the second input member 17.

[0051] like Figure 3As shown, in other optional embodiments, the rotation axis of the intermediate transmission member 18 is parallel to the PTO shaft 8, the rotation axis of the second input member 17 is perpendicular to the PTO shaft 8, and two or more second input members 17 are provided in a direction parallel to the PTO shaft 8. Adjacent second input members 17 mesh with each other, and the intermediate transmission member 18 meshes with the first input member 19 and is connected to adjacent second input members 17 through a bevel gear set. Specifically, a first bevel gear 23 is coaxially fixed to the intermediate transmission member 18, and a second bevel gear 24 is coaxially fixed to the second input member 17. The first bevel gear 23 meshes with the second bevel gear 24. In this arrangement, the motor shaft of the motor 14 is perpendicular to the PTO shaft 8, and the motor 14 can be arranged parallel to the direction perpendicular to the PTO shaft 8.

[0052] Furthermore, the motor 14 and the motor clutch device 15 may be arranged on a side of the transmission case 16 facing away from the power take-off shaft 8 .

[0053] In some embodiments of the present invention, the housing includes a first housing 20 and a second housing 21. The first input member 19 and the intermediate transmission member 18 are located within the first housing 20, and the second input member 17 is located within the second housing 21. The second housing 21 is rotatably connected to the first housing 20 and fixed at an angle by a positioning member 22. By rotating the second housing 21 relative to the first housing 20, the housing shape can be changed and the positions of the motor 14 and the motor clutch device 15 can be adjusted to accommodate different installation environments, thereby making the power system more compact and more rationally arranged.

[0054] Optionally, the positioning members 22 are bolts, with multiple positioning members 22 arranged at equal angles around the transition axis of the second housing 21. Multiple threaded holes are provided on the first and second housings 20, 21 corresponding to the positioning members 22, through which the positioning members 22 are threadedly connected to the first and second housings 20, 21, respectively. The angle of the second housing 21 can be adjusted by changing the correspondence between the threaded holes on the first and second housings 20, 21. For example, there are 18 positioning members 22 arranged at equal angles around the transition axis of the second housing 21, with 18 threaded holes provided on the first and second housings 20, 21, respectively. Each adjustment of the position of a positioning member 22 results in a 20° rotation of the second housing 21.

[0055] Optionally, the rotating shaft of the intermediate transmission member 18 serves as the connecting shaft between the first box body 20 and the second box body 21, and there is no need to set up an additional connecting shaft between the first box body 20 and the second box body 21, and when adjusting the angle of the second box body 21, there is no need to change the transmission structure.

[0056] According to the power system of an embodiment of the present invention, the internal combustion engine power unit includes an engine 3, a clutch 4, and a transmission 5. The engine 3 is connected to the input end of the transmission 5 via the clutch 4. The output end of the transmission 5 is provided with a main drive shaft 7, which is connected to the driving axle 9. The power take-off clutch device 6 is connected to the output end of the transmission 5.

[0057] An embodiment of the present invention further provides a working machine comprising a travel drive axle 9, an oil pump 10, and a hydraulic actuator 11. The travel drive axle 9 is connected to the output of the internal combustion engine power unit, specifically to the main drive shaft 7. The input of the oil pump 10 is connected to the power take-off shaft 8. The internal combustion engine power unit or an electric motor 14 can drive the oil pump 10 through the power take-off shaft 8. The output of the oil pump 10 is connected to the hydraulic actuator 11 to provide power to the hydraulic actuator 11.

[0058] The working machine of this embodiment of the present invention also includes a vehicle controller 2, which is connected to a low-voltage power supply 1 and supplied with electrical energy. The vehicle controller 2 processes information such as the operating status of the engine 3, power take-off signals, and load data. It also coordinates control with the motor control system to achieve multi-motor input, significantly reducing the power and torque requirements for motor selection and significantly reducing the motor space required, allowing for flexible machine layout. The vehicle controller 2 is also connected to the controller of the engine 3 to control its operation.

[0059] The control principle of the power system of the embodiment of the present invention is as follows:

[0060] S1. Execute the following control steps in response to the working mode selection signal and the status detection signal:

[0061] S11. When the working mode is the driving mode, if it is determined according to the status detection signal that the external power grid 12 is disconnected and the clutch 4 of the internal combustion engine power unit is disconnected, the engine 3 is started and the motor clutch device 15 is controlled to be disconnected. If it is determined according to the status detection signal that the external power grid 12 is not disconnected or the clutch 4 of the internal combustion engine power unit is closed, a reminder signal is issued.

[0062] It is understood that when the external power grid 12 is disconnected and the clutch 4 of the internal combustion engine power system is disengaged, the engine 3 starting conditions are met and the engine 3 can be started. At this time, the motor clutch device 15 needs to be controlled to disengage to prevent the internal combustion engine power system from dragging the motor 14. When the external power grid 12 is disconnected and the clutch 4 of the internal combustion engine power system is disengaged, the engine 3 starting conditions are no longer met and a warning signal needs to be issued to remind the driver to make adjustments.

[0063] S12. When the working mode is the motor operation mode, if it is determined according to the status detection signal that the power take-off clutch device 6 is in the disconnected state and the external power grid 12 is connected, the motor clutch device 15 is controlled to close and the motor 14 is controlled to start; if it is determined according to the status detection signal that the power take-off clutch device 6 is in the closed state or the external power grid 12 is disconnected, a reminder signal is issued.

[0064] It is understood that when the power take-off clutch 6 is closed, the power take-off shaft 8 is connected to the internal combustion engine power unit, and the starting motor 14 will be hindered by the internal combustion engine power unit. Not only will it be unable to provide sufficient power to the oil pump 10, but it will also easily cause the motor 14 to overload and be damaged. Therefore, the conditions for motor operation are not met. When the external power grid 12 is not connected, the motor 14 has no power supply and is also not qualified for motor operation. In both of the above situations, a reminder signal needs to be issued to remind the driver to make adjustments. When the conditions for motor operation are met, the motor clutch 15 is controlled to close and the motor 14 is controlled to start, which can drive the power take-off shaft 8 to rotate and provide power for the vehicle operation.

[0065] S13: When the operating mode is engine 3 operation mode, the motor clutch 15 is controlled to disengage and the internal combustion engine power unit is started. In this step, after the motor clutch 15 is disengaged, the engine 3 runs and transmits power to the power take-off shaft 8, which drives the oil pump 10 to provide power for boarding the vehicle. Disengaging the motor clutch 15 prevents the power take-off shaft 8 from dragging the motor 14, protecting the motor 14 and reducing fuel consumption.

[0066] It is understood that if the initial state is driving mode, at this time, the motor clutch device 15 and the external power grid 12 are both in the disconnected state. If the vehicle speed is determined to be zero, the gear is correct, and the power take-off clutch device 6 is in the closed state, the engine 3 can be directly started to switch the operating mode to the engine 3 operation mode. If the initial mode is motor operation mode, at this time, the motor clutch device 15 is in the closed state and the external power grid 12 is connected, the motor clutch device 15 needs to be adjusted to the disconnected state, the external power grid 12 needs to be disconnected, and the power take-off clutch device 6 needs to be switched to the closed state before the engine 3 can be started to switch the operating mode to the engine 3 operation mode.

[0067] In the embodiment of the present invention, the driver can select the working mode by pressing buttons on the operation panel, and the vehicle controller 2 selects the control strategy according to the working mode selected by the driver.

[0068] In some embodiments of the present invention, the status detection signal may include the power take-off signal of the power take-off clutch device 6, the status detection signal of the motor clutch device 15, the status detection signal of the motor 14, the connection status detection signal of the external power grid 12, the vehicle speed signal, the gear signal and the working status detection signal of the hydraulic actuator 11, etc. The vehicle controller 2 analyzes and processes the status detection signal to realize automatic control of the power system.

[0069] In some embodiments of the present invention, the motor 14 and the motor clutch device 15 are provided in plurality. In step S12, controlling the motor clutch device 15 to close and controlling the motor 14 to start specifically includes:

[0070] According to the equipment working condition, a matching number of motor clutch devices 15 are controlled to close and a matching number of motors 14 are controlled to start.

[0071] When the equipment load is light, the vehicle controller 2 collects load data and automatically adjusts the number of connected motors 14 to reduce energy consumption while meeting the load requirements. If a motor 14 fails, the vehicle controller 2 can disconnect it, allowing the equipment to continue operating at a reduced power level, and simultaneously issue a warning signal.

[0072] The warning signal can be issued through instrument interface display, voice broadcast or light reminder to remind the driver to take timely action.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A power system, characterized in that: include: Internal combustion engine power unit; A power take-off clutch device, wherein the input end of the power take-off clutch device is transmission-connected to the output end of the internal combustion engine power device, and the output end of the power take-off clutch device is provided with a power take-off shaft; At least two motors; a transmission box, the transmission box being connected to the power take-off shaft and each of the motors simultaneously to realize transmission between each of the motors and the power take-off shaft; At least two motor clutch devices are provided corresponding to the motors, and each motor is connected to the transmission box through the corresponding motor clutch device; The transmission box includes a box body and a first input member, an intermediate transmission member and a second input member rotatably arranged in the box body, the first input member is coaxially fixed with the power take-off shaft, the intermediate transmission member is respectively transmission-connected to the first input member and the second input member, and the rotating shaft of the second input member is transmission-connected to the rotating shaft of the motor through the motor clutch device; the rotating shafts of the intermediate transmission member and the second input member are parallel to the power take-off shaft, and more than two second input members are provided in a direction perpendicular to the power take-off shaft, and adjacent second input members are meshed with each other, and the intermediate transmission member is respectively meshed with the first input member and the adjacent second input member; the box body includes a first box body and a second box body, the first input member and the intermediate transmission member are located in the first box body, the second input member is located in the second box body, the second box body is rotationally connected to the first box body, and is fixed at an angle by a positioning member.

2. The power system according to claim 1, characterized in that: The positioning member is a bolt, and a plurality of the positioning members are arranged at equal angles around the switching axis of the second box body. The positioning members are respectively threadedly connected to the first box body and the second box body.

3. The power system according to claim 1 or 2, characterized in that: The rotating shaft of the intermediate transmission member serves as a connecting shaft between the first housing and the second housing.

4. The power system according to claim 1 or 2, characterized in that: The first input member, the second input member and the intermediate transmission member are respectively gear structures.

5. The power system according to claim 4, characterized in that: The rotating shaft of the intermediate transmission member is parallel to the power take-off shaft, the rotating shaft of the second input member is perpendicular to the power take-off shaft, and more than two second input members are provided in a direction parallel to the power take-off shaft, and adjacent second input members are meshed with each other. The intermediate transmission member is meshed with the first input member and is connected to the adjacent second input member through a bevel gear set.

6. The power system according to claim 1, characterized in that: It also includes a motor controller, which is respectively connected to the vehicle controller, the motor and the motor clutch device by signal, so as to be suitable for controlling the motor clutch device and the motor according to the control instructions of the vehicle controller.

7. A working machine, characterized in that: It includes a driving axle, an oil pump, a hydraulic actuator and a power system as described in any one of claims 1 to 6, wherein the driving axle is connected to the output end of the internal combustion engine power device, the input end of the oil pump is connected to the power take-off shaft, and the hydraulic actuator is connected to the output end of the oil pump.

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