Extended-range hybrid power electrically-driven harvester

Abstract

The invention relates to the technical field of harvesters, in particular to an extended-range hybrid electric-driven harvester which comprises an extended-range power supply system, a power battery power supply system, a power management system and a power utilization system, the extended-range power supply system and the power battery power supply system are connected to the power management system in parallel, and the power management system is connected with the power utilization system. The two power supply systems are used as a source of energy of the whole harvester, the power management system is used for distributing electric power, and the power utilization system is used for driving all working parts of the extended-range hybrid power electric drive harvester to work. Therefore, double power supplies of extended-range power supply and power battery are adopted to provide power for the whole machine, sufficient endurance operation time is ensured, a motor type can save fuel oil, reduce carbon emission and improve operation precision, the electric power framework is a brand-new electric power framework, and a transmission path is simplified through motor direct drive, so that oil consumption and the failure rate of a transmission system are reduced, and the service life of the whole machine is prolonged. And the direct-drive response speed of the motor is high, and the speed regulation range is wide.

Description

Technical Field

[0001] The present application relates to the technical field of harvesters, and in particular to an extended-range hybrid electric-driven harvester. Background Art

[0002] At present, new energy electric-driven harvesters are easier to realize automation, autonomy and intelligence. They have the characteristics of easy operation quality detection and high level of intelligent control. They can bring many benefits such as energy conservation and emission reduction, precise operation, harvesting operation information perception and intelligent regulation, etc., which are of great significance for improving the quality and efficiency of agriculture.

[0003] Traditional harvesters are mostly driven by diesel engines, that is, the diesel engine is connected to the power output, the power output drives the intermediate shaft through a pulley connected to a belt, and then drives the harvesting table module, separation module, cleaning module, grain unloading module and other electrical working parts through pulleys, belts, gears, and chains to achieve the purpose of harvesting grains. However, the current use of a single power source not only affects the operation quality by changes in the ground forward speed and engine speed, but also has disadvantages such as high energy consumption, large pollution emissions, and poor operation accuracy. Summary of the invention

[0004] The purpose of this application is to provide an extended-range hybrid electric harvester, which to a certain extent solves the technical problems existing in the prior art that most existing harvesters use a single power source, and not only the operation quality is affected by changes in the ground forward speed and engine speed, but also has shortcomings such as high energy consumption, large pollution emissions, and poor operation accuracy.

[0005] The present application provides an extended-range hybrid electric harvester, comprising: an extended-range power supply system, a power battery power supply system, a power management system and a power consumption system; wherein the extended-range power supply system and the power battery power supply system are connected in parallel to the power management system, the power management system is also connected to the power consumption system, and the extended-range power supply system and the power battery power supply system are used as the source of energy for the entire vehicle, the power management system is used to distribute electrical power, and the power consumption system is used to drive the various working parts of the extended-range hybrid electric harvester to complete the harvesting operation.

[0006] In the above technical solution, further, the extended-range power supply system includes an engine, a generator and an AC-DC converter; wherein the engine is connected to the generator to form a range extender; the input end of the AC-DC converter is connected to the three-phase line of the generator, and the output end of the AC-DC converter is connected to the power management system.

[0007] In any of the above technical solutions, further, the power battery power supply system includes a power battery, and the positive and negative ends of the power battery are respectively connected to the power management system.

[0008] In any of the above technical solutions, further, the power battery power supply system also includes a DC-DC converter, the input end of the DC-DC converter is respectively connected to the positive and negative ends of the power battery, and the output end of the DC-DC converter is connected to the power management system.

[0009] In any of the above technical solutions, further, the power management system includes a power distribution unit PDU, the output ends of the extended-range power supply system and the power battery power supply system are connected in parallel to the input end of the power distribution unit PDU through a DC bus, and the output end of the power distribution unit PDU is connected to the power consumption system.

[0010] In any of the above technical solutions, further, the power system includes a header module drive system, and the header module drive system includes a header motor driver, a header module drive motor and a header mechanism, the header motor driver is connected to the input end of the header module drive motor, and the output end of the header module drive motor is connected to the header mechanism;

[0011] The header module driving system further includes a header module reducer, and the output end of the header module driving motor is connected to the header mechanism through the header module reducer.

[0012] In any of the above technical solutions, further, the power system also includes a separation module drive system, and the separation module drive system includes a separation motor driver, a separation module drive motor and a separation mechanism, the separation motor driver is connected to the input end of the separation module drive motor, and the output end of the separation module drive motor is connected to the separation mechanism;

[0013] The separation module driving system also includes a separation module reducer, and the output end of the separation module driving motor is connected to the separation mechanism through the separation module reducer.

[0014] In any of the above technical solutions, further, the power system includes a walking drive system, and the walking drive system includes three walking motor drivers, three walking module drive motors, two wheel-side reducers and a walking mechanism; wherein the three walking motor drivers are respectively connected to the input ends of the three walking module drive motors corresponding to each other;

[0015] The output ends of two of the walking module drive motors directly drive the left rear wheel and the right rear wheel of the walking mechanism through two corresponding wheel-side reducers, and the other walking module drive motor directly drives the gearbox, and the gearbox drives the front wheel of the walking mechanism through the axle.

[0016] In any of the above technical solutions, further, the power system also includes a grain unloading module driving system, and the grain unloading module driving system includes a grain unloading module driver, a grain unloading module driving motor and a grain unloading mechanism, the grain unloading module driver is connected to the input end of the grain unloading module driving motor, and the output end of the grain unloading module driving motor is connected to the grain unloading mechanism.

[0017] In any of the above technical solutions, further, the power system also includes a cleaning module drive system, and the cleaning module drive system includes a cleaning motor driver, a cleaning module drive motor and a cleaning mechanism, the cleaning motor driver is connected to the input end of the cleaning module drive motor, and the output end of the cleaning module drive motor is connected to the cleaning mechanism;

[0018] The cleaning module driving system also includes a cleaning module reducer, and the output end of the cleaning module driving motor is connected to the cleaning mechanism through the cleaning module reducer.

[0019] In any of the above technical solutions, further, the extended-range hybrid electric-driven harvester also includes a heat dissipation system, and the heat dissipation system includes a water pump, a radiator, a water tank and a water pipe, wherein other systems included in the power system are connected in series with the water pump through the water pipe, and then connected in parallel to the radiator and the water tank;

[0020] In any of the above technical solutions, further, the power consumption system also includes a DC-DC step-down system, and the DC-DC step-down system includes a DC-DC step-down module, and the input end of the DC-DC step-down module is connected to the output end of the power management system, and the output end of the DC-DC step-down module is connected to the 24V system control power of the whole machine.

[0021] Compared with the prior art, the beneficial effects of this application are:

[0022] The present application provides a new type of extended-range hybrid electric-driven harvester, which adopts a dual power source of extended-range power supply and power battery to provide power for the whole machine, ensuring sufficient endurance operating time, and the electric model can save fuel, reduce carbon emissions, and improve operating accuracy. It is a new power architecture, and the transmission path is simplified through direct motor drive, thereby reducing fuel consumption and transmission system failure rate. The direct motor drive has a fast response speed and a wide speed regulation range, and can achieve stepless speed change and automatic adjustment of the drum speed, fan speed, and reel speed as the vehicle speed and feed amount change. The direct motor drive has the ability to instantly output twice the torque, making it easier to get out of trouble and climb over ridges, and the operation transfer efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the structure of a range-extended hybrid electric-driven harvester provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the structure of the extended-range power supply system, power battery power supply system, power management system and power consumption system provided in the embodiments of the present application;

[0026] Figure 3 A schematic diagram of the structure of a heat dissipation system provided in an embodiment of the present application.

[0027] Reference numerals:

[0028] 1-engine, 2-generator, 3-AC-DC converter, 4-power battery, 5-DC-DC converter, 6-power distribution unit PDU, 7-cutting table motor driver, 8-cutting table module drive motor, 9-cutting table module reducer, 10-bridge drive shaft, 11-cutter, 12-feeding auger, 13-reel wheel, 14-cleaning motor driver, 15-cleaning module drive motor, 16-cleaning module reducer, 17-cleaning transition wheel, 18-fan, 19-grain elevator, 20-screen box , 21-miscellaneous elevator, 22-travel motor driver, 23-travel module drive motor, 24-wheel side reducer, 25-grain unloading module driver, 26-grain unloading module drive motor, 27-grain unloading intermediate transmission shaft, 28-output sprocket, 29-grain box bottom auger, 30-grain unloading drum, 31-separation motor driver, 32-separation module drive motor, 33-separation module reducer, 34-drum, 35-water pump, 36-radiator, 37-water tank, 38-water pipe, 39-DC-DC step-down module. DETAILED DESCRIPTION

[0029] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0030] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0031] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0032] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] Refer to the following Figures 1 to 3 An extended-range hybrid electric harvester is described according to some embodiments of the present application.

[0035] See also Figure 1 As shown, an embodiment of the present application provides an extended-range hybrid electric harvester, comprising: an extended-range power supply system, a power battery power supply system, a power management system and a power consumption system; wherein, the extended-range power supply system and the power battery power supply system are connected in parallel to the power management system, the power management system is also connected to the power consumption system, and the extended-range power supply system and the power battery power supply system are used as the source of energy for the entire vehicle, the power management system is used to distribute electrical power, and the power consumption system is used to drive the various working parts of the extended-range hybrid electric harvester to work so as to complete the harvesting operation.

[0036] According to the structure described above, the present application provides a new type of extended-range hybrid electric-driven harvester, which adopts extended-range power supply and power battery dual power supply to provide power for the whole machine, ensuring sufficient endurance operating time. In addition, the electric model can save fuel, reduce carbon emissions, and improve operating accuracy. It is a brand-new power architecture.

[0037] In this embodiment, preferably, Figure 1 As shown, the extended-range power supply system includes an engine 1, a generator 2 and an AC-DC converter 3; wherein the engine 1 is connected to the generator 2 to form a range extender; the input end of the AC-DC converter 3 is connected to the three-phase line of the generator 2, and the output end of the AC-DC converter 3 is connected to the power management system.

[0038] According to the structure described above, the output end of the engine 1 and the rotating shaft of the generator 2 can be connected by a spline, a coupling or an adapter flange to form a range extender, which is installed on the base bracket of the range extender. The three-phase line of the generator 2 is electrically connected to the AC input end of the AC-DC converter 3. The output end of the AC-DC converter 3 is positive and negative two-phase DC power. The engine 1 drives the generator 2 to rotate and generate electricity in a speed mode. The AC-DC converter 3 is used to control the power output of the generator 2 and convert the AC power generated by the generator 2 into DC power, which is output to the DC bus of the power system of the harvester. The DC bus is connected to the power distribution unit PDU6 described below, and when the power battery 4 is low in power, the electric energy output by the range-extended power supply system will also be stored in the power battery 4 described below.

[0039] Furthermore, preferably, the engine 1 is a diesel engine, but is not limited thereto and may be selected according to actual needs, such as a gas engine, a fuel cell engine, etc.

[0040] In this embodiment, preferably, Figure 2 As shown, the power battery power supply system includes a power battery 4, and the positive and negative ends of the power battery 4 are respectively connected to the power management system.

[0041] Further, preferably, Figure 2 As shown, the power battery power supply system also includes a DC-DC converter 5, the input end of the DC-DC converter 5 is respectively connected to the positive and negative ends of the power battery 4, and the output end of the DC-DC converter 5 is connected to the power management system.

[0042] According to the structure described above, the positive and negative ends of the power battery 4 are connected to the input end of the DC-DC converter 5, and the output end of the DC-DC converter 5 is also connected to the DC bus. The power battery 4 outputs electric energy to the DC-DC converter 5. The DC-DC converter 5 boosts the electric energy output by the power battery 4 and outputs it to the DC bus of the power system of this harvester. The power battery 4 needs to be externally connected to a nine-hole DC fast charging port and a seven-hole AC slow charging port. When this harvester is idle, the power battery 4 needs to be charged regularly to prevent the power battery 4 from being damaged.

[0043] Among them, preferably, Figure 1 As shown, the power battery power supply system is equipped with a supporting mechanism, which includes an iron frame and an iron plate. The iron frame of the supporting mechanism is used to support two iron plates, which are divided into an upper and lower layer. The upper iron plate is mainly used to place the power battery 4, and the lower iron plate is mainly used to place the DC-DC booster. The supporting mechanism is placed at the lower left side of the range extender base bracket, that is, located in the middle position of the left side of the vehicle.

[0044] In this embodiment, preferably, Figure 2As shown, the power management system includes a power distribution unit PDU6, the output ends of the extended-range power supply system and the power battery power supply system are connected in parallel to the input end of the power distribution unit PDU6 through a DC bus, and the output end of the power distribution unit PDU6 is connected to the power consumption system.

[0045] According to the structure described above, the input end of the power distribution unit PDU6 is electrically connected to the DC bus of the DC output end of the AC-DC converter 3 of the extended-range power supply system and the DC bus of the output end of the power battery power supply system, and the output end is electrically connected to the drivers and motors of each drive system part of the power consumption system, and the power distribution unit PDU6 is used to distribute the power consumption of each drive system, and preferably, the power distribution unit is placed on the iron plate of the support mechanism on the same layer as the DC-DC converter 5.

[0046] In this embodiment, preferably, Figure 1 and Figure 2 As shown, the power system includes a header module drive system, and the header module drive system includes a header motor driver 7, a header module drive motor 8 and a header mechanism, the header motor driver 7 is connected to the input end of the header module drive motor 8, and the output end of the header module drive motor 8 is connected to the header mechanism;

[0047] The cutting platform module driving system includes a cutting platform module reducer 9, and the output end of the cutting platform module driving motor 8 is connected to the cutting platform mechanism through the cutting platform module reducer 9.

[0048] According to the structure described above, the existing harvesting platform mechanism generally includes components such as a bridge driving shaft 10, a cutter 11, a feeding auger 12 and a reel 13. The output shaft of the harvesting platform module driving motor 8 is mechanically connected to the harvesting platform module reducer 9 and the left side of the bridge driving shaft 10. The rotation of the motor drives the bridge driving shaft 10 to rotate, and further drives the cutter 11, the feeding auger 12 and the reel 13 to work through components such as a belt pulley and a chain gear. Among them, the reel 13 rotates to push the grain backward to the cutter 11. After the cutter 11 cuts the crop, it is knocked down onto the harvesting platform by the reel 13. The spiral blades on both sides of the feeding auger 12 push the cut grain to the feeding inlet in the middle of the harvesting platform. The retractable teeth of the auger push the grain to the bridge, and the grain is sent to the longitudinal axial flow roller 34 through the chain rake for threshing and separation. The above-mentioned harvesting platform mechanism and its working process belong to the prior art and will not be described in detail here.

[0049] Among them, the cutting table motor driver 7, the cutting table module drive motor 8 and the cutting table module reducer 9 need to be installed on the supporting structure, and the supporting structure is installed on the left side of the bridge. The cutting table module drive motor 8 can also be directly connected to the left side of the bridge driving shaft 10 through a coupling to realize direct motor drive. Furthermore, if the stepless speed regulation of the reel 13 and the bridge reversal function are realized, two small-power motor drives can be added.

[0050] It can be seen that the transmission path is simplified by direct motor drive, thereby reducing fuel consumption and transmission system failure rate, and the direct motor drive has a fast response speed and a wide speed regulation range, which can achieve stepless speed change and automatic adjustment of the speed of the reel 13 as the vehicle speed and feed amount change.

[0051] In this embodiment, preferably, Figure 1 and Figure 2 As shown, the power system also includes a separation module driving system, and the separation module driving system includes a separation motor driver 31, a separation module driving motor 32 and a separation mechanism, the separation motor driver 31 is connected to the input end of the separation module driving motor 32, and the output end of the separation module driving motor 32 is connected to the separation mechanism;

[0052] The separation module driving system further includes a separation module reducer 33 , and the output end of the separation module driving motor 32 is connected to the separation mechanism through the separation module reducer 33 .

[0053] According to the structure described above, the existing de-separating mechanism generally includes a roller 34, a belt and a chopper, etc. The de-separating motor driver 31 is electrically connected to the de-separating module driving motor 32, and the output shaft of the de-separating module driving motor 32 is mechanically connected to the de-separating module reducer 33 and the grass discharge wheel on the right side of the vehicle. The rotation of the motor drives the grass discharge wheel and the rotating shaft of the roller 34 to rotate. Furthermore, the left side of the rotating shaft of the roller 34 is connected to the main pulley of the chopper through a belt. The threshed grains, together with the husks, broken ears and scraps, fall onto the shaking plate through the grid sieve holes of the concave plate, and the long stems move to the tail of the longitudinal flow roller 34 and are discharged from the machine body, or are discharged after being cut by the chopper. The above-mentioned de-separating mechanism and its working process belong to the prior art and will not be described in detail here.

[0054] Among them, the separation motor driver 31, the separation module drive motor 32 and the separation module reducer 33 need to be installed on the support structure, and the support structure is installed on the right side of the grass discharge wheel (drum 34 shaft). The separation module drive motor 32 can also be directly connected to the right side of the grass discharge wheel shaft through a coupling to realize motor direct drive. Furthermore, if the speed regulation function of the drum 34 is to be realized, a motor can be selected to drive the drum 34 alone, and another low-power motor can be selected to drive the chopper alone, or the chopper can be omitted.

[0055] It can be seen that the transmission path is simplified by direct motor drive, thereby reducing fuel consumption and transmission system failure rate, and the direct motor drive has a fast response speed and a wide speed regulation range, and can achieve stepless speed change and automatic adjustment of the rotation speed of the drum 34.

[0056] In this embodiment, preferably, Figure 1 and Figure 2 As shown, the power system includes a walking drive system, which includes three walking motor drivers 22, three walking module drive motors 23, two wheel-side reducers 24 and a walking mechanism; wherein the three walking motor drivers 22 are respectively connected to the input ends of the three walking module drive motors 23 corresponding to each other;

[0057] The output ends of two walking module drive motors 23 directly drive the left rear wheel and the right rear wheel of the walking mechanism through two corresponding wheel-side reducers 24, and the other walking module drive motor 23 directly drives the gearbox, and the gearbox drives the front wheel of the walking mechanism through the axle.

[0058] According to the structure described above, the walking mechanism generally includes structures such as a front axle gearbox, an axle, a rear wheel and a front wheel. The walking motor driver 22 and the walking module drive motor 23 are electrically connected. The output shaft of one walking module drive motor 23 is mechanically connected to the front axle gearbox and the axle to drive the front wheels of the harvester. The walking module drive motor 23 of the gearbox axle is installed on the motor shield. The output shafts of the other two walking module drive motors 23 are mechanically connected to the wheel-side reducer 24 and the left and right wheels of the rear axle of the harvester to drive the rear wheels of the harvester. That is, the rear wheel adopts a wheel-side drive or hub drive solution, and the walking module drive motor 23 replaces the original walking motor. The above-mentioned walking mechanism and its working process belong to the prior art and will not be described in detail here.

[0059] It can be seen that the direct drive of the motor simplifies the transmission path, thereby reducing fuel consumption. The direct drive of the motor has a fast response speed and a wide speed regulation range. The direct drive of the motor has an instantaneous torque output capacity of twice, which makes it easier to get out of the trap and climb over ridges, and the operation transfer efficiency is high.

[0060] In this embodiment, preferably, Figure 1 and Figure 2 As shown, the power system also includes a grain unloading module driving system, and the grain unloading module driving system includes a grain unloading module driver 25, a grain unloading module driving motor 26 and a grain unloading mechanism, the grain unloading module driver 25 is connected to the input end of the grain unloading module driving motor 26, and the output end of the grain unloading module driving motor 26 is connected to the grain unloading mechanism.

[0061] According to the structure described above, the grain unloading mechanism generally includes structures such as the grain unloading intermediate transmission shaft 27, the output sprocket 28, the grain box bottom auger 29 and the grain unloading barrel 30. The grain unloading motor driver is electrically connected to the grain unloading module drive motor 26. The output shaft of the grain unloading module drive motor 26 is mechanically connected to the left side of the grain unloading intermediate transmission shaft 27 through a coupling. The grain unloading module drive motor 26 rotates to drive the grain unloading intermediate transmission shaft 27 to rotate. Further, it is connected to the grain box bottom auger 29 and the auger in the grain unloading barrel 30 to rotate through components such as chain gears. Among them, the grain unloading motor driver and the grain unloading module drive motor 26 are installed on the support frame of the grain unloading intermediate shaft at the left rear of the grain box to realize motor direct drive. It should be noted that the grain unloading mechanism is an existing structure and will not be described in detail here.

[0062] It can be seen that the transmission path is simplified by direct motor drive, thereby reducing fuel consumption and transmission system failure rate, and the direct motor drive has a fast response speed and a wide speed regulation range, which can realize stepless speed change and automatic adjustment of the rotation speed and feed amount of the auger 29 at the bottom of the grain box and the auger in the grain unloading barrel 30.

[0063] In this embodiment, preferably, Figure 1 and Figure 2 As shown, the power system also includes a cleaning module drive system, and the cleaning module drive system includes a cleaning motor driver 14, a cleaning module drive motor 15 and a cleaning mechanism, the cleaning motor driver 14 is connected to the input end of the cleaning module drive motor 15, and the output end of the cleaning module drive motor 15 is connected to the cleaning mechanism;

[0064] The cleaning module driving system further includes a cleaning module reducer 16 , and the output end of the cleaning module driving motor 15 is connected to the cleaning mechanism through the cleaning module reducer 16 .

[0065] According to the structure described above, the cleaning mechanism generally includes a cleaning transition wheel 17, a fan 18, a grain elevator 19, a screen box 20 and a debris elevator 21. The cleaning motor driver 14 is electrically connected to the cleaning module drive motor 15. The output shaft of the cleaning module drive motor 15 is mechanically connected to the cleaning module reducer 16 and the fan 18 shaft of the cleaning transition pulley. The cleaning module drive motor 15 rotates to drive the cleaning transition pulley and the fan 18 shaft to rotate. Further, the grain elevator 19, the screen box 20 and the debris elevator 21 are driven to work through components such as pulleys and chain gears. The mixture of de-separated grains, miscellaneous ears, husks and short-stem drafts jumps from front to back on the shaking plate. In the process of backward shaking and conveying, the grains and husk debris are gradually separated. Due to different specific gravities, the grains are located below the husk fragments.

[0066] When the logistics moves to the bars at the tail of the shaking plate, the grains and small aggregates of husks fall from the gaps of the bars to form a material curtain. Under the action of the airflow of the fan 18, they fall into different parts of the screen box 20 after air selection, while the broken stems and stalks are supported by the bars, further separated and fall to the upper and lower screens, and are discharged from the machine body through the tail screen. After the initial separation material enters the cleaning chamber, it is blown out of the machine by the airflow of the fan, and the light husks and broken drafts are blown out of the machine. The clean grains fall on the grain slide through the sieve holes, enter the grain auger, are pushed right by the grain auger, and are sent to the grain box through the grain elevator 19 and the top auger. The unremoved debris and broken ear heads fall on the debris slide through the sieve holes of the tail sieve, enter the debris auger, and are pushed to the right end debris elevator 21, which is transported back to the threshing drum 34 for secondary threshing and separation. It should be noted that the cleaning mechanism is an existing structure, so its structure and working process are not described in detail.

[0067] Among them, the cleaning motor driver 14, the cleaning module drive motor 15 and the cleaning module reducer 16 need to be installed on the supporting structure, and the supporting structure is installed on the right side of the cleaning transition wheel 17 (fan 18 shaft). The cleaning module drive motor 15 can also be directly connected to the right side of the fan 18 shaft through a coupling to realize motor direct drive. Furthermore, if the fan 18 speed regulation function is to be realized, a small power motor can be selected separately to drive the fan 18, and other cleaning working parts use the above-mentioned cleaning module drive motor 15 drive solution.

[0068] It can be seen that the direct drive of the motor simplifies the transmission path, thereby reducing fuel consumption and the failure rate of the transmission system. In addition, the direct drive of the motor has a fast response speed and a wide speed regulation range, which can achieve stepless speed change and automatic adjustment during cleaning and screening.

[0069] In this embodiment, preferably, Figure 1 and Figure 3 As shown, the extended-range hybrid electric harvester also includes a cooling system, and the cooling system includes a water pump 35, a radiator 36, a water tank 37 and a water pipe 38, wherein other systems included in the electrical system are connected in series with the water pump 35 through the water pipe 38, and then connected in parallel to the radiator 36 and the water tank 37.

[0070] According to the structure described above, the motor drivers and motors in the above-mentioned module drive systems are connected to the low-power water pump 35 through the water pipe 38, and then connected in parallel to a radiator 36 and a water tank 37 for circulation to achieve the purpose of heat dissipation. The motor drivers and motors in the above-mentioned module drive systems can also be connected through the water pipe 38, and then connected in parallel to a high-power water pump 35 and a water tank 37 for circulation.

[0071] In this embodiment, preferably, Figure 1 and Figure 2As shown, the power consumption system also includes a DC-DC step-down system, and the DC-DC step-down system includes a DC-DC step-down module 39, and the input end of the DC-DC step-down module 39 is connected to the output end of the power management system, and the output end of the DC-DC step-down module 39 is connected to the 24V system control power of the whole machine.

[0072] According to the structure described above, the input end of the DC-DC step-down module 39 is electrically connected to the output end of the power distribution unit PDU6, and the output end of the DC-DC step-down module 39 is connected to the 24V system control power of the whole machine, which is used to power the low-voltage controller, BCM, headlights, sensors, display screens and other low-voltage electrical components of the harvester.

[0073] In summary, the present application provides an extended-range hybrid electric-drive harvester, which includes an extended-range power supply system, a power battery power supply system, a power management system, a harvesting table module drive system, a separation module drive system, a walking drive system, a grain unloading module drive system, a cleaning module drive system, a heat dissipation system, and a DC-DC step-down system, etc., wherein the extended-range power supply system and the power battery power supply system are the energy sources of the entire vehicle, the drive system is used to drive the various working parts of the harvester to complete the harvesting operation, the heat dissipation system is used for heat dissipation of the motor and the driver, and the DC-DC step-down system is used to power the low-voltage 24V electrical components of the entire machine.

[0074] It can be seen that the use of extended-range power supply and power battery dual power supply for the whole machine eliminates range anxiety, can save fuel, and reduce carbon emissions. The direct drive of the motor simplifies the transmission path, thereby reducing fuel consumption and transmission system failure rate. The direct drive of the motor has a fast response speed and a wide speed regulation range, and can achieve stepless speed change and automatic adjustment of the speed of the drum 34, the speed of the fan 18, and the speed of the reel 13 as the vehicle speed and feed amount change. The direct drive of the motor has an instantaneous torque output capacity of twice, which makes it easier to get out of the trap and climb over the ridge, and the operation transfer efficiency is high.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application 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 replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An extended-range hybrid electric drive harvester, characterized in that: include: An extended-range power supply system, a power battery power supply system, a power management system and a power consumption system; wherein the extended-range power supply system and the power battery power supply system are connected in parallel to the power management system, the power management system is also connected to the power consumption system, and the extended-range power supply system and the power battery power supply system are used as the energy source of the entire vehicle, the power management system is used to distribute electrical power, and the power consumption system is used to drive the various working parts of the extended-range hybrid electric harvester to complete the harvesting operation.

2. The extended-range hybrid electric harvester according to claim 1, characterized in that: The extended-range power supply system includes an engine, a generator and an AC-DC converter; wherein the engine is connected to the generator to form a range extender; the input end of the AC-DC converter is connected to the three-phase line of the generator, and the output end of the AC-DC converter is connected to the power management system.

3. The extended-range hybrid electric harvester according to claim 1, characterized in that: The power battery power supply system includes a power battery, and the positive and negative ends of the power battery are respectively connected to the power management system.

4. The extended-range hybrid electric harvester according to claim 3, characterized in that: The power battery power supply system also includes a DC-DC converter, the input end of the DC-DC converter is connected to the positive and negative ends of the power battery respectively, and the output end of the DC-DC converter is connected to the power management system.

5. The extended-range hybrid electric harvester according to claim 1, characterized in that: The power management system includes a power distribution unit PDU. The output ends of the extended-range power supply system and the power battery power supply system are connected in parallel to the input end of the power distribution unit PDU through a DC bus, and the output end of the power distribution unit PDU is connected to the power consumption system.

6. The extended-range hybrid electric harvester according to claim 1, characterized in that: The power system includes a header module drive system, and the header module drive system includes a header motor driver, a header module drive motor and a header mechanism, the header motor driver is connected to the input end of the header module drive motor, and the output end of the header module drive motor is connected to the header mechanism; The header module driving system further includes a header module reducer, and the output end of the header module driving motor is connected to the header mechanism through the header module reducer.

7. The extended-range hybrid electric harvester according to claim 1, characterized in that: The power system also includes a separation module drive system, and the separation module drive system includes a separation motor driver, a separation module drive motor and a separation mechanism, the separation motor driver is connected to the input end of the separation module drive motor, and the output end of the separation module drive motor is connected to the separation mechanism; The separation module driving system also includes a separation module reducer, and the output end of the separation module driving motor is connected to the separation mechanism through the separation module reducer.

8. The extended-range hybrid electric harvester according to claim 1, characterized in that: The power system includes a walking drive system, which includes three walking motor drivers, three walking module drive motors, two wheel-side reducers and a walking mechanism; wherein the three walking motor drivers are respectively connected to the input ends of the three walking module drive motors corresponding to each other; The output ends of two of the walking module drive motors directly drive the left rear wheel and the right rear wheel of the walking mechanism through two corresponding wheel-side reducers, and the other walking module drive motor directly drives the gearbox, and the gearbox drives the front wheel of the walking mechanism through the axle.

9. The extended-range hybrid electric harvester according to claim 1, characterized in that: The power system also includes a grain unloading module driving system, and the grain unloading module driving system includes a grain unloading module driver, a grain unloading module driving motor and a grain unloading mechanism, the grain unloading module driver is connected to the input end of the grain unloading module driving motor, and the output end of the grain unloading module driving motor is connected to the grain unloading mechanism.

10. The extended-range hybrid electric harvester according to any one of claims 1 to 9, characterized in that: The power system also includes a cleaning module drive system, and the cleaning module drive system includes a cleaning motor driver, a cleaning module drive motor and a cleaning mechanism, the cleaning motor driver is connected to the input end of the cleaning module drive motor, and the output end of the cleaning module drive motor is connected to the cleaning mechanism; The cleaning module driving system further comprises a cleaning module reducer, and the output end of the cleaning module driving motor is connected to the cleaning mechanism via the cleaning module reducer; and / or The extended-range hybrid electric-driven harvester also includes a heat dissipation system, and the heat dissipation system includes a water pump, a radiator, a water tank and a water pipe, wherein other systems included in the power system are connected in series with the water pump through the water pipe, and then connected in parallel to the radiator and the water tank; The power consumption system also includes a DC-DC step-down system, and the DC-DC step-down system includes a DC-DC step-down module, and the input end of the DC-DC step-down module is connected to the output end of the power management system, and the output end of the DC-DC step-down module is connected to the 24V system control power of the whole machine.

Images