CN220875140U - Hybrid power system and hybrid power combine harvester - Google Patents

Abstract

The application provides a hybrid power system and a hybrid power combine harvester, and relates to the technical field of agricultural machinery. The hybrid power system comprises a power battery pack, a generator and an engine, wherein the generator and the power battery pack which are connected with the engine jointly output electric energy outwards, and kinetic energy is directly connected between the engine and a power output shaft PTO through a clutch to be output outwards. The power output shaft PTO is connected with a cutting table system, a cleaning system and a grass breaking system in a transmission manner, a power distribution device is respectively connected with a walking motor, a roller motor, a fan motor and a reel motor, and a control system is used for controlling the work of a power battery pack, an engine and a generator in a coordinated manner. The transmission system is simplified, the operation efficiency is high, the response speed is high, the overload capacity is high, the labor intensity is reduced, and the energy is saved.

Description

Hybrid power system and hybrid power combine harvester

Technical Field

The application relates to the technical field of agricultural machinery, in particular to a hybrid power system and a hybrid power combine harvester.

Background

Agricultural machinery equipment is an important foundation for modern agriculture. Along with the development of novel production status and novel production mode of modern agriculture, the requirements on production efficiency, environmental protection, green energy conservation and the like are increasingly raised. The traditional combine harvester adopts a diesel engine and mechanical transmission mode, and the power transmission device is in a mode that the engine output passes through multi-stage transmission, so that the traditional combine harvester has the advantages of more components, long path, low transmission efficiency and high failure rate; under different working conditions, the operation parameters cannot be accurately adjusted in real time, so that the operation performance of the machine is unstable, the energy utilization rate is low, and the fuel consumption and carbon emission of the whole machine are greatly increased.

In the prior art, a series-type hybrid electric power combine harvester is provided, wherein power of an engine is respectively input into a power output shaft PTO and a power generator through a transfer case, and a clutch is arranged between the power generator and the transfer case. The power of the driving generator is cut off through the clutch, and all power of the engine is transmitted into the power output shaft PTO to drive the roller of the threshing system and the fan of the cleaning system to work. Without this clutch, the efficiency of the blower driving the drum of the threshing system and the cleaning system would be affected. However, the generator is connected with the power take-off shaft PTO through a transfer case, a clutch is arranged between the generator and the transfer case, the structure is complex, and efficiency loss exists in the added transfer case.

Disclosure of utility model

The application aims to provide a hybrid power system and a hybrid power combine harvester, which are used for solving the problems of complex structure or efficiency loss of a power transmission system of a series-type oil-electricity hybrid power combine harvester in the prior art.

To achieve the above object, in a first aspect, the present application provides a hybrid system comprising:

a power battery pack;

a generator connected with the power battery pack, and the generator and the power battery pack together provide electric energy to the outside; and

The engine is connected with the generator through a power take-off port and is in transmission connection with a power output shaft PTO through a clutch, and the power output shaft PTO is used for outputting kinetic energy outwards.

In one possible embodiment, the hybrid power system further comprises a power distribution device for connecting to a motor in the working system;

The power distribution device is connected with the generator and the power battery pack respectively and is used for distributing electric energy provided by the generator and the power battery pack.

In order to achieve the above object, in a second aspect, the present application further provides a hybrid combine harvester, including a frame, a header system, a cleaning system, a threshing system, a traveling system, a control system, and a hybrid system provided according to the first aspect;

wherein, the power take-off shaft PTO is respectively connected with the header system and the cleaning system in a transmission way;

The power distribution device is respectively connected with a walking motor in the walking system, a roller motor in the threshing system for driving the threshing roller to run, a fan motor in the cleaning system and a reel motor in the header system;

The control system is used for coordinating and controlling the work of the power battery pack, the engine and the generator.

As a further improvement of the above technical scheme:

In one possible embodiment, the control system comprises:

the motor controller is respectively connected with the power distribution device, the generator and the power battery pack;

The whole vehicle controller is connected with the engine, the power battery pack and the motor controller; and

The sensor is used for detecting the rotating speed of the power output shaft PTO and feeding back rotating speed signals to the motor controller and the whole vehicle controller, and the motor controller and the whole vehicle controller are used for controlling the corresponding power generator, the corresponding engine and the corresponding power battery pack to carry out power compensation according to the rotating speed signals so as to adjust the torque and the rotating speed of the walking motor, the roller motor, the fan motor and the reel motor.

In one possible embodiment, the cutting table system further comprises a reel, a cutter, a cutting table auger and a conveying belt, wherein the reel is connected with the reel motor, and the cutter, the cutting table auger and the conveying belt are all connected with the power output shaft PTO.

In one possible embodiment, the cleaning system further comprises a fan, a cleaning screen, a surplus auger and a seed auger, wherein the fan is connected with the fan motor, and the cleaning screen, the surplus auger and the seed auger are all connected with the power output shaft PTO.

In one possible embodiment, the cleaning screen includes a shaking plate, and an upper screen, a lower screen, and a tail screen sequentially disposed on the shaking plate, and the shaking plate is connected to the power take-off shaft PTO.

In one possible embodiment, the hybrid combine further comprises a grass chopping system in driving connection with the power take-off shaft PTO.

In one possible embodiment, the running system further comprises a running gear, a left driving wheel and a right driving wheel, wherein the running gear is connected with the running motor, and the running gear is in transmission connection with the left driving wheel and the right driving wheel.

In one possible embodiment, the hybrid combine further comprises a grain tank provided on the frame.

Compared with the prior art, the application has the beneficial effects that:

The application provides a hybrid power system and a hybrid power combine harvester, wherein the hybrid power system outputs electric energy outwards through a generator and a power battery pack which are connected to an engine, and kinetic energy is directly output between the engine and a power output shaft PTO through a clutch. The power transmission device is applied to a hybrid power combine harvester, electric energy output by a generator and a power battery pack directly drives a corresponding walking motor, a roller motor, a fan motor and a reel motor to work, the engine is directly connected with a power output shaft PTO through a clutch, a transfer case structure is omitted, the structure is simpler, a transmission system is simplified, the operation efficiency and the response speed are improved, and the whole energy consumption is reduced.

In addition, the engine is directly connected with the generator, the middle part of the engine is free of a clutch, the engine can be directly started by the reverse towing of the generator, the power output of the engine is realized by controlling the torque of the generator, the structure is simplified, the cost is reduced, and the starting speed of the engine is faster and smoother.

After a travelling motor, a roller motor, a fan motor and a reel motor in the hybrid combine harvester are started, the real-time output power of the roller motor can be monitored, and the rotating speed and torque of the travelling motor, the fan motor and the reel motor can be adjusted, so that the blocking of a grain roller in a threshing system is avoided, the operation efficiency is improved, and the failure rate is reduced; meanwhile, the running speed is adjusted in real time along with the power of the threshing cylinder motor, so that an operator does not need to control the speed in the operation process, and the manual labor intensity is greatly reduced.

The power of the roller motor, the fan motor, the reel motor and the walking motor are cooperatively controlled, the torque of the generator and the rotating speed of the engine are controlled, the output current of the power battery pack is regulated, the engine can work in a high-efficiency interval for a long time, the problem that the specific oil consumption of the engine is high under different working conditions of harvesting (crop states such as drying, semi-drying, green, wet and the like), grain unloading, transferring and the like of the combine harvester is solved, and the comprehensive operation energy consumption of the combine harvester is reduced.

Additional features and advantages of the application will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate only certain embodiments of the application and, therefore, should not be considered as limiting the scope, since it is possible to obtain other related drawings from the drawings without inventive step by those of ordinary skill in the art. In the drawings:

FIG. 1 shows a schematic diagram of a hybrid combine provided by an embodiment of the present application;

FIG. 2 illustrates a front view of a hybrid combine provided by an embodiment of the present application;

FIG. 3 shows a top view of a hybrid combine provided by an embodiment of the application;

FIG. 4 illustrates a rear view of a hybrid combine provided by an embodiment of the application;

FIG. 5 illustrates a partial view of a hybrid combine provided by an embodiment of the application;

FIG. 6 shows a control logic diagram of a hybrid combine generator reverse-towed engine start control scheme provided by an embodiment of the present application;

FIG. 7 shows a control logic diagram of a hybrid combine roller anti-jam control scheme provided by an embodiment of the application;

Fig. 8 shows a control logic diagram of a hybrid combine coordinated control and energy consumption optimal control manner according to an embodiment of the present application.

Reference numerals illustrate:

10. A header system; 11. cutting table auger; 12. a cutting knife; 13. a conveyor belt; 14. reel wheel; 14a, reel motor;

20. A cleaning system; 21. a surplus auger; 22. a seed auger; 23. cleaning and screening; 23a, shaking plate; 23b, screening; 23c, screening; 23d, a tail screen; 24. a blower; 24a, a fan motor;

30. An engine; 31. a clutch; 32. a power take-off PTO; 33. a generator; 34. a power battery pack;

40. A control system; 41. a vehicle controller; 42. a sensor; 43. a motor controller;

50. A threshing system; 51. a threshing cylinder; 51a, a roller motor;

60. a walking system; 61a, a walking motor; 61b, a walking transmission; 61c, left drive wheel; 61d, right driving wheel;

70. a grass chopping system; 71. a chopper drum;

81. And a grain storage tank.

Detailed Description

The following describes the detailed implementation of the embodiments of the present application with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the application, are not intended to limit the application.

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.

In the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The application will be described in detail below with reference to the drawings in connection with exemplary embodiments.

Examples

Referring to fig. 1, the present embodiment provides a hybrid combine harvester. The hybrid combine harvester comprises a frame, a hybrid power system arranged on the frame, a header system 10, a cleaning system 20, a threshing system 50, a traveling system 60 and a control system 40.

The hybrid system includes a power battery pack 34, an engine 30, a clutch 31, and a generator 33. The engine 30 and the power battery 34 are energy sources of the whole machine, and the hybrid power system of the whole machine is formed by combining the components of the clutch 31, the power takeoff, the generator 33, the power take-off shaft PTO32 and the like. It will be appreciated that in the present embodiment, the power of the engine 30 is respectively input to the PTO32 via the clutch 31 and output to the generator 33 and the power battery pack 34 via the power take-off port, thereby forming a hybrid system for a combine harvester.

The engine 30 is connected to the generator 33 through a power take-off port and to the power take-off shaft PTO32 through the clutch 31, whereby power output from the engine 30 can be selectively transmitted to the power take-off shaft PTO32 through the clutch 31. Wherein the power take-off shaft PTO32 is in driving connection with the header system 10 and the cleaning system 20, respectively, via a transmission. In this embodiment, the power take-off shaft PTO32 is not connected to the reel 14 in the header system 10 and the fan 24 in the cleaning system 20.

The generator 33 is connected with the power battery pack 34, the power battery pack 34 can be charged through the generator 33, and the power battery pack 34 can also be charged through an external power supply. Further, the generator 33 and the power battery 34 are respectively connected with the walking motor 61a in the walking system 60, the roller motor 51a in the threshing system 50, the fan motor 24a in the cleaning system 20 and the reel motor 14a in the header system 10 through power distribution devices, and the power distribution devices are used for distributing the electric energy provided by the generator 33 and the power battery 34 as required so as to drive the corresponding walking motor 61a, the roller motor 51a, the fan motor 24a and the reel motor 14a to work. The control system 40 is used to control the operation of the power battery pack 34, the engine 30, and the generator 33.

The control system 40 includes a motor controller 43, a vehicle controller 41, and a sensor 42. The motor controller 43 is connected to the power distribution device, the generator 33, and the power battery pack 34, respectively. The vehicle controller 41 is connected to the engine 30. The sensor 42 is used for detecting the rotation speed of the power take-off shaft PTO32 and feeding back rotation speed signals to the motor controller 43 and the whole vehicle controller 41, and the motor controller 43 and the whole vehicle controller 41 are used for controlling the corresponding generator 33, the engine 30 and the power battery 34 to perform power compensation according to the rotation speed signals.

Referring to fig. 2, 3, 4 and 5, the header system 10 further includes a reel 14, a cutter 12, a header auger 11 and a conveyor belt 13. The reel 14 is connected with a reel motor 14a, and the reel motor 14a drives the reel 14 to work. The cutting knife 12, the cutting table auger 11 and the conveying belt 13 are connected with a power output shaft PTO32, and the cutting knife 12, the cutting table auger 11 and the conveying belt 13 are driven to work through the power output shaft PTO 32.

The above-described cleaning system 20 also includes a blower 24, a cleaning screen 23, a trash auger 21, and a kernel auger 22. The fan 24 is connected with a fan motor 24a, and the fan motor 24a drives the fan 24 to work. The cleaning sieve 23, the impurity auger 21 and the seed auger 22 are connected with a power output shaft PTO32, and the cleaning sieve 23, the impurity auger 21 and the seed auger 22 are driven to work through the power output shaft PTO 32.

Further, in the present embodiment, the cleaning screen 23 includes a shaking plate 23a, and an upper screen 23b, a lower screen 23c and a tail screen 23d sequentially disposed on the shaking plate 23a, where the shaking plate 23a is connected to the power take-off shaft PTO32, and the power take-off shaft PTO32 can drive the shaking plate 23a to vibrate at a preset frequency.

The hybrid combine further comprises a chopper system 70, wherein the chopper system 70 comprises a chopper drum 71, the chopper drum 71 being in driving connection with the power take-off shaft PTO32 via a transmission, whereby the chopper drum 71 is indirectly provided directly by the engine 30.

The threshing system 50 further comprises a threshing cylinder 51, the threshing cylinder 51 is connected with a cylinder motor 51a, and the threshing cylinder 51 is driven by the cylinder motor 51a to work.

The traveling system 60 further includes a traveling transmission 61b, a left driving wheel 61c, and a right driving wheel 61d, wherein the traveling transmission 61b is connected to the traveling motor 61a, and the traveling transmission 61b is in driving connection with the left driving wheel 61c and the right driving wheel 61d. Thus, the power output from the traveling motor 61a is transmitted to the traveling transmission 61b, and then the traveling transmission 61b drives the left and right driving wheels 61c and 61d to rotate synchronously, so as to drive the hybrid combine harvester to travel.

In this embodiment, the hybrid combine further includes a grain storage tank 81 disposed on the frame, and the grain storage tank 81 is used for collecting grains processed by the threshing system 50.

The embodiment also provides a hybrid power system. The hybrid power system is described in detail above, and will not be described again.

Furthermore, the embodiment also provides a control method of the hybrid combine harvester, and the hybrid combine harvester is applied. The control method of the hybrid combine harvester comprises the following steps:

engine 30 is turned on by reverse pulling of generator 33;

The power output by the engine 30 is used for driving the header system 10, the cleaning system 20 and the grass breaking system 70 to work through the power output shaft PTO 32;

the power output by the power battery pack 34 and the generator 33 is distributed as required through a power distribution device to drive the corresponding running motor 61a, the roller motor 51a, the fan motor 24a and the reel motor 14a to work;

The torque and rotation speed of the running motor 61a, the drum motor 51a, the fan motor 24a and the reel motor 14a are monitored, the rotation speed and torque output from the generator 33 are controlled to control the amount of electricity of the power battery pack 34 within a preset range, and the engine 30 is controlled to maintain a high-efficiency operation interval according to the charge and discharge of the power battery pack 34.

Referring to fig. 6, the control logic for "start engine 30 by reverse-towing of generator 33" described above is as follows: after the whole vehicle controller 41 detects the key power-on signal, each system (the hybrid power system, the header system 10, the cleaning system 20, the threshing system 50, the traveling system 60, the grass breaking system 70 and the control system 40) starts self-checking, and after no faults, the whole vehicle controller 41 issues a high-voltage command to the power battery pack 34, and the power battery pack 34 finishes high-voltage. After detecting the key start signal, the whole vehicle controller 41 requests the torque mode of the generator 33, the target rotating speed is 450rpm, timing is started, the generator 33 drives the engine 30 to rotate, oil injection is started when the rotating speed of the engine 30 is greater than 400rpm, the engine 30 is started successfully when the rotating speed of the engine 30 is greater than 700rpm, the whole vehicle controller 41 requests the generator 33 to remove torque, the generator 33 exits from the rotating speed mode and rotates along with the engine 30, and at the moment, the engine 30 drives the generator 33 to generate electricity.

Further, the control method of the hybrid combine harvester further comprises the following steps:

According to the torque and the rotation speed of the roller motor 51a, the current consumed power of the roller motor 51a is calculated, and under the condition that the power of the roller motor 51a is larger than a preset value, the rotation speed and the torque of the walking motor 61a are reduced, and meanwhile, the torque and the rotation speed of the fan motor 24a and the reel motor 14a are adjusted to be matched.

Referring to fig. 7, specifically, the vehicle controller 41 collects the rotation speed and torque of the current drum motor 51a in real time, so that the power of the current drum motor 51a can be calculated, the current drum motor 51a power is compared with the preset power, and when the drum motor 51a power is within the preset value range, the vehicle controller 41 requests the running motor 61a, the reel motor 14a and the fan motor 24a to keep running at the current rotation speed. When the power of the drum motor 51a is smaller than the preset value, the whole vehicle controller 41 requests the traveling motor 61a, the reel motor 14a and the fan motor 24a to increase the rotation speed and increase the feeding amount. When the power of the drum motor 51a is greater than the preset value, the whole vehicle controller 41 requests the traveling motor 61a, the reel motor 14a and the fan motor 24a to reduce the rotation speed and the feeding amount. The clogging of the threshing cylinder 51 can be prevented by the above control means.

Referring to fig. 8, the current working condition of the whole machine is determined by the on-off state of the clutch 31 between the engine 30 and the PTO 32:

Clutch 31 is closed, indicating that the hybrid combine is operating at harvest; the clutch 31 is disengaged, indicating that the hybrid combine is in a dumping or transferring condition. In the harvesting operation, the engine 30 is required to run at a fixed 2200rpm under the rotation speed requirement of the parts such as the seed auger 22 and the chopper drum 71, an operator sets the operation speed through an operating device, the whole vehicle controller 41 controls the running motor 61a to run according to the set target speed, and simultaneously controls the rotation speeds of the reel motor 14a and the fan motor 24a to be in a linear proportion relation with the rotation speed of the running motor 61a, so that when the operation speed is low, the rotation speeds of the reel motor 14a and the fan motor 24a are also reduced, and high energy consumption caused by high rotation speeds when the feeding amount is low is avoided. In the operation process, along with the different states of dry, semi-dry, green, wet and the like of crops and the different operation vehicle speeds, the rotating speed and the torque of the roller motor 51a can have larger fluctuation, the whole vehicle controller 41 monitors the rotating speed and the torque of the roller motor 51a in real time, calculates the power of the roller motor 51a to be compared with the preset power, and when the real-time power of the roller motor 51a is within the preset range value (the power range set between the maximum and the minimum), the whole vehicle controller 41 controls the running motor 61a to keep the current rotating speed unchanged; when the power of the drum motor 51a is smaller than the preset value, the whole vehicle controller 41 requests the traveling motor 61a, the reel motor 14a and the fan motor 24a to increase the rotation speed and increase the feeding amount. When the power of the drum motor 51a is greater than the preset value, the whole vehicle controller 41 requests the traveling motor 61a, the reel motor 14a and the fan motor 24a to reduce the rotation speed and the feeding amount. The clogging of the threshing cylinder 51 can be prevented by the above control means. The constant maximum feeding amount of the hybrid combine harvester is maintained by adjusting the rotating speed of the traveling motor 61 a.

When the hybrid combine is in a grain unloading or transferring operation, the clutch 31 is in a disconnected state, and at the moment, the rotating speed of the engine 30 is in an adjustable mode. In the unloading and transferring mode of operation, the overall vehicle controller 41 controls the output power of the generator 33 by calculating the current load demand power, and thus can control the engine 30 to operate at a lower rotational speed because the unloading and rotational speed demand power is less than the rated power of the engine 30.

The whole vehicle controller 41 calculates the power of the current running motor 61a, reel motor 14a, roller motor 51a and fan motor 24a, and by combining the current SOC value of the power battery pack 34 and the opening and closing state of the clutch 31, looks up a universal characteristic curve table (MAP) of the engine 30, and determines the optimal fuel consumption operation interval of the engine 30. When the SOC of the power battery pack 34 is higher than the preset SOC value, the output power of the generator 33 is reduced by the vehicle controller 41; when the SOC of the power battery pack 34 is lower than the preset SOC value, the output power of the generator 33 is increased by the whole-vehicle controller 41, so that the engine 30 works in the working range with the lowest specific fuel consumption under the current required power, and the whole-vehicle energy consumption of the hybrid combine is reduced.

Compared with the prior art, in the hybrid combine provided by the embodiment, the engine 30 can be directly towed by the generator 33 for starting, so that the engine 30 has quicker starting response and lower cost. The threshing system 50, the travelling system 60, the fan 24 and the reel 14 are all driven by motors. In the operation mode, the output torque (power) of the drum motor 51a is automatically adjusted according to the dry, semi-dry, green, wet and other state changes of crops, while the running speed, the reel 14 and the fan 24 are automatically adjusted along with the power changes of the drum motor 51a, the harvesting speed under different operation working conditions is more reasonable to select, the threshing drum 51 is prevented from being blocked, and the maximum power of the engine 30 can be exerted.

Further, a power distribution device is arranged between the generator 33 and the power battery pack 34, the generator 33 is directly connected with the motors (the walking motor 61a, the roller motor 51a, the fan motor 24a and the reel motor 14 a) of part systems and sub-components through the power distribution device, and is always engaged in working with the power battery pack 34 according to power requirements, and the reasonable and effective distribution of energy from multiple power sources to multiple target loads is realized through the charge and discharge of the power battery pack 34, namely, under different working conditions, the engine 30 works in the lowest specific fuel consumption region of the current load requirements, the power of the engine 30 is maximally exerted, and the working efficiency is improved.

It should be noted that the above-described transmission is a common mechanical transmission, including but not limited to gear transmission, sprocket transmission, pulley tradition, etc.

The foregoing details of the optional implementation of the embodiment of the present application have been described in conjunction with the accompanying drawings, but the embodiment of the present application is not limited to the specific details of the foregoing implementation, and various simple modifications may be made to the technical solution of the embodiment of the present application within the scope of the technical concept of the embodiment of the present application, where all the simple modifications belong to the protection scope of the embodiment of the present application.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

In addition, any combination of various embodiments of the present application may be performed, so long as the concept of the embodiments of the present application is not violated, and the disclosure of the embodiments of the present application should also be considered.

Claims (10)

1. A hybrid system, comprising:

A power battery pack (34);

A generator (33) connected to the power battery (34), and the generator (33) and the power battery (34) together supply electric energy to the outside; and

The engine (30) is connected with the generator (33) through a power take-off port and is in transmission connection with the power take-off shaft PTO (32) through a clutch (31), and the power take-off shaft PTO (32) is used for outputting kinetic energy outwards.

2. The hybrid system of claim 1, further comprising a power distribution device for an electric motor in an external work system;

Wherein the power distribution device is respectively connected with the generator (33) and the power battery pack (34), and is used for distributing electric energy provided by the generator (33) and the power battery pack (34).

3. Hybrid combine harvester characterized by comprising a frame and a header system (10), a cleaning system (20), a threshing system (50), a travelling system (60), a control system (40) and a hybrid system according to claim 1 or 2 arranged on the frame;

Wherein the power take-off shaft PTO (32) is respectively in transmission connection with the header system (10) and the cleaning system (20);

The power distribution device is respectively connected with a traveling motor (61 a) in the traveling system (60), a roller motor (51 a) in the threshing system (50) for driving the threshing roller (51) to operate, a fan motor (24 a) in the cleaning system (20) and a reel motor (14 a) in the header system (10);

The control system (40) is used for coordinating and controlling the operation of the power battery pack (34), the engine (30) and the generator (33).

4. A hybrid combine harvester according to claim 3, characterized in that the control system (40) comprises:

a motor controller (43) connected to the power distribution device, the generator (33), and the power battery pack (34), respectively;

A vehicle control unit (41) connected to the engine (30), the power battery pack (34), and the motor control unit (43); and

The sensor (42) is used for detecting the rotating speed of the power output shaft PTO (32) and feeding back rotating speed signals to the motor controller (43) and the whole vehicle controller (41), and the motor controller (43) and the whole vehicle controller (41) are used for controlling the corresponding power generator (33), the engine (30) and the power battery pack (34) to carry out power compensation according to the rotating speed signals so as to adjust the torque and the rotating speed of the walking motor (61 a), the roller motor (51 a), the fan motor (24 a) and the reel motor (14 a).

5. A hybrid combine harvester according to claim 3, characterized in that the header system (10) further comprises a reel (14), a cutter (12), a header auger (11) and a conveyor belt (13), the reel (14) being connected with the reel motor (14 a), the cutter (12), the header auger (11) and the conveyor belt (13) being connected with the power take-off shaft PTO (32).

6. A hybrid combine harvester according to claim 3, characterized in that the cleaning system (20) further comprises a fan (24), a cleaning screen (23), a surplus auger (21) and a grain auger (22), the fan (24) being connected with the fan motor (24 a), the cleaning screen (23), the surplus auger (21), the grain auger (22) being connected with the power take-off shaft PTO (32).

7. The hybrid combine according to claim 6, characterized in that the cleaning screen (23) comprises a shaking plate (23 a) and an upper screen (23 b), a lower screen (23 c) and a tail screen (23 d) arranged on the shaking plate (23 a) in sequence, the shaking plate (23 a) being connected with the power take-off shaft PTO (32).

8. A hybrid combine as claimed in claim 3, further comprising a grass chopping system (70), the grass chopping system (70) being in driving connection with the power take-off shaft PTO (32).

9. A hybrid combine according to claim 3, characterized in that the travelling system (60) further comprises a travelling transmission (61 b), a left drive wheel (61 c) and a right drive wheel (61 d), the travelling transmission (61 b) being connected to the travelling motor (61 a), the travelling transmission (61 b) being drivingly connected to the left drive wheel (61 c) and the right drive wheel (61 d).

10. Hybrid combine according to any one of claims 3-9, characterized in that it further comprises a grain tank (81) provided on the frame.