JP2004242558A - Self-propelled agricultural work machine - Google Patents

Abstract

To provide a hybrid agricultural working machine capable of effectively using the driving force of an engine and storing electric power converted from the driving force of the engine in a battery without waste.
A power generator (25) that generates power by driving an internal combustion engine (23), a battery (27) that stores electric power generated by the power generator (25) for driving an electric motor (24), and is operated by the electric motor (24) and / or the internal combustion engine (23). One or more working devices (e.g., a mowing device 6, a threshing device 15, a working machine 33, etc.), a charging mode for storing power generated by a generator 25 by the driving force of an internal combustion engine 23 in a battery 27, and a charging mode for storing the power in the battery 27. An agricultural work machine provided with a controller 29 for selecting any one of the assist modes for controlling the output of the working device (6, 15, 33) as part or all of the power source of the working device (6, 15, 33) and controlling the output. is there. Even if the engine drive output is reduced, the electric motor 24 can supplement the engine output, reduce the amount of combustion exhaust gas emitted, and reduce the vibration of the engine 23, thereby reducing the vibration of the body.
[Selection diagram] FIG.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an agricultural work machine such as a combine, and more particularly to a hybrid self-propelled agricultural work machine equipped with an internal combustion engine (electric engine) and an electric motor as power sources.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an agricultural work machine of an internal combustion engine type that uses an engine as a power source, transmits a driving force of the engine to a traveling transmission, and drives the front and rear wheels at an appropriate rotation speed by the traveling transmission. .
[0003]
However, in recent years, with the mood for saving fossil fuel as an energy source and the momentum to prevent the environmental air from burning exhaust gas from fossil fuel as much as possible, passenger-type vehicles have adopted hybrid systems equipped with an engine and an electric motor. Cars have been developed and commercialized.
[0004]
In the field of agricultural working machines, hybrid farming machines equipped with an engine and an electric motor as power sources are known from the following patent documents and the like.
In other words, the invention described in Japanese Patent Application Laid-Open No. 2001-320805 operates the engine constantly near the maximum output when operating the agricultural work machine near the maximum output of the engine. Since the engine output often has a margin at the maximum output value, when the engine power is used for such work, control is performed such that the engine margin output is stored in a battery via a charger. Things.
[0005]
Further, the invention described in Japanese Patent Application Laid-Open No. 2001-161104 discloses a driving system having a configuration in which a driving force of only an engine is used for both a traveling driving system and a working power system such as a rotary work machine. Since the transmission gear unit and the like for both the system and the working power system are arranged, and the number of parts in the transmission case increases, it is to solve the problem, and the working power system is an electric motor. By driving the transmission case, the number of components such as the transmission gears in the transmission case is reduced.
[0006]
[Patent Document 1]
JP 2001-320805 A
[Patent Document 2]
Japanese Patent Application Laid-Open No. 2001-161104
[Problems to be solved by the invention]
However, the above-mentioned conventional hybrid farming machine has the following problems.
That is, the invention described in Japanese Patent Application Laid-Open No. 2001-320805 is an excellent invention in which it is necessary to always operate the agricultural work machine near the maximum output of the engine, and the combustion efficiency is high. However, the fuel is wasted, and the combustion efficiency may be reduced.
[0009]
Also, the invention described in Japanese Patent Application Laid-Open No. 2001-161104 can be evaluated to reduce the number of parts in the transmission case as compared with the conventional product. However, since only the working power system is driven by the electric motor, the engine Can not be stored in the equipped battery.
[0010]
An object of the present invention is to provide a hybrid agricultural working machine that can effectively use the driving force of an engine and can store power converted from the driving force of the engine without waste in a battery.
[0011]
[Means for Solving the Problems]
The above object of the present invention is solved by the following technical means.
The invention described in claim 1 includes a traveling frame 2, a traveling transmission 21 provided on the traveling frame 2, an internal combustion engine 23 that transmits power to the traveling transmission 21, and an electric motor 24. In the traveling agricultural machine, a generator 25 that generates electric power by driving the internal combustion engine 23, a battery 27 that stores the electric power generated by the electric generator 25 for driving the electric motor 24, and the electric motor 24 and / or the internal combustion engine 23. And at least one work device (6, 15, 33) operated by the above, a charging mode for storing the electric power generated by the generator 25 by the driving force of the internal combustion engine 23 in the battery 27, and the electric power stored in the battery 27 A controller 29 for selecting any one of the assist modes in which the power source is used as part or all of the power source of the working device (6, 15, 33), and controlling the output. It is an agricultural machine.
[0012]
Since the power source of the combine 1 uses the electric motor 24 in addition to the engine 23 and the generator 23 is operated by the engine 23 to charge the electric motor 24, the electric motor 24 is charged even if the engine drive output is reduced. 24 can supplement the engine output, reduce the amount of combustion exhaust gas emitted from the engine 23, and reduce the vibration of the engine 23 because the vibration of the engine 23 is relatively small.
[0013]
As means for switching between the charging mode and the assist mode of the electric motor 24, for example, an "on" or "off" means of the threshing clutch 32 or an "on" or "off" means of the grain sensor 34 is used.
[0014]
According to a second aspect of the present invention, when the driving force load on the internal combustion engine 23 by the working device (6, 15, 33) operated by the internal combustion engine 23 is small, the controller 29 controls the working device (6 The self-propelled agricultural work machine according to claim 1, further comprising a configuration for activating a charging mode for charging the battery 27 even during the operation of (15, 33).
[0015]
In the operation of the combine 1, for example, when the planted grain culm is not cut, the engine 23 needs only the running power, and there is a margin. When such an engine 23 has extra power, the extra power of the engine 23 can be stored in the battery 27, and wasteful consumption of energy can be avoided.
[0016]
The invention according to claim 3 is the self-propelled agricultural working machine according to claim 1 or 2, wherein a solar cell 42 is provided as a power generation source to be stored in the battery 27, instead of the generator 25 or together with the generator 25. is there.
[0017]
By employing a configuration in which the solar battery 42 is used instead of or together with the generator 25 as a charging means of the electric motor battery 27, it is not possible to work on a rainy day and use the apparatus in a state with insolation. It is possible to adopt a usage method that matches the characteristics of the work of the agricultural work machine, which is large.
[0018]
According to a fourth aspect of the present invention, the self-propelled agricultural working machine according to the third aspect is provided with a cutting device 6 for cutting the planted grain culm supported by the traveling frame 2, a threshing device 15 for threshing the cut grain culm, and threshing. A self-propelled agricultural work machine having a Glen tank 30 for temporarily storing collected kernels and a driver's cockpit 20, and a solar cell on at least one ceiling surface of the threshing device 15, the Glen tank 30 and the cockpit 20. 42 is a self-propelled agricultural work machine.
[0019]
Since the upper surface of the threshing device 15 of the combine 1, the upper surface of the Glen tank 30, the upper surface of the cockpit 20, and the like have wide flat surfaces, the solar battery 42 can be used as a charging unit for the battery 27 of the electric motor 24. It is valid.
[0020]
【The invention's effect】
According to the first aspect of the present invention, even if the engine drive output is reduced, the electric motor 24 can supplement the engine output and reduce the amount of combustion exhaust gas discharged from the engine 23, thereby preventing pollution. Further, since the vibration and noise of the engine 23 are relatively small, the agricultural work machine has a good riding comfort.
[0021]
According to the second aspect of the present invention, in addition to the effect of the first aspect, when there is a surplus in the output of the engine 23, the surplus of the output of the engine 23 can be stored in the battery 27. Power consumption can be avoided, and the drive system can be operated by the output from the battery 27 when necessary, so that the agricultural work machine can be used efficiently and its operating cost is reduced when only the engine power source is used. Can be lowered in comparison.
[0022]
According to the third aspect of the present invention, in addition to the effects of the first and second aspects, it is possible to work on a rainy day, and to conform to the characteristics of the work of the agricultural working machine that it is often used in a state of insolation. The battery 27 can be charged if the sunshine is good even when the engine load is high.
[0023]
According to the fourth aspect of the invention, the fact that the combine 1 has a structure in which the ceiling surface is flat in many cases can be effectively used for power generation of the solar cell 42.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
FIG. 1 is a left side view of a combine for harvesting cereals according to an embodiment of the present invention, FIG. 2 is a front elevation view of the combine, FIG. 3 is a plan view of the combine, and FIG. 1 shows a schematic side view of the internal structure of the device.
[0025]
The lower part of the traveling frame 2 of the combine 1 shown in FIGS. 1 to 4 has a pair of left and right crawlers 4 formed of a flexible material such as rubber in an endless band shape, and can be used not only in dry fields but also in wet fields. The crawler 4 is provided with a traveling device 3 that can travel freely just by slightly sinking, a reaper 6 is mounted on a front portion of the traveling frame 2, and an engine 23 (FIG. 5) and threshing are provided on an upper portion of the traveling frame 2. The device 15, the cockpit 20 and the Glen tank 30 are mounted.
[0026]
The mowing device 6 is configured so that the entire mowing device 6 can be moved up and down by the expansion and contraction action of a mowing lift cylinder (not shown) to mow cereal vegetation on a field at a predetermined height. A weeding tool 7 is arranged below the front end of the mowing device 6, a grain stem raising device 8 having an inclined shape behind it, and a mowing blade (not shown) is arranged at the rear bottom portion. Between the cutting blade and the starting end of the feed chain 14 of the threshing device 15, a not-shown front conveying device, a handling depth adjusting device, a feeding conveying device, and the like are successively transferred and transferred to the grain culm and adjusting the handling depth. It is arranged to be able to.
[0027]
Although the power of the combine according to the embodiment of the present invention is basically an engine, it is characterized in that an electric motor is used as a power source in addition to the engine as shown in FIG. In order to facilitate understanding, the functions of the respective working means of the combine 1 will be briefly described below using the engine 23 as a power source.
[0028]
The operation of the harvester 6 of the combine 1 is performed as follows. First, the engine 23 is started and operating levers for shifting, steering and the like are operated so that the combine 1 moves forward, and a mowing / threshing clutch (not shown) provided in the traveling transmission 21 (see FIG. 5). When the traveling frame 2 is moved forward while transmitting the rotating parts of the fuselage by operating the cutting machine, harvesting and threshing work are started. Grain culm to be planted in the field is subjected to weeding by the weeding tool 7 at the lower front end of the cutting device 6, and then raised by the culm raising device 8 to an upright state if it is in a lying state. The stem of the culm reaches the cutting blade and is harvested, scraped by the front conveyor, conveyed to the rear, transferred to the handling depth adjusting device, and supplied and conveyed, and successively continuously in the upper part of the rear. Transported to
[0029]
The cereal culm is passed from the supply and transport device to the start end of the feed chain 14, and is supplied to the threshing device 15 shown in FIG. The threshing device 15 arranges a handling room 66 on which a handling drum 69 is mounted on the upper side, and a sorting unit 50 is integrally provided below the handling room 66 to thresh and sort the supplied harvested grain culm.
[0030]
The grain culm supplied to the threshing device 15 is inserted into a handling chamber 66 that is a main threshing unit, and is transported by a large number of teeth 69a of a handling drum 69 that rotates around the handling chamber 66 and the feed chain 14. And threshing by the interaction with the handling net 74, and the object to be treated (grain or straw waste) is received by the swinging shelf 51 of the sorting unit 50 in the threshing device 15, and swings up and down and back and forth. While moving on the shelves 51, the wind from Karino 79 is blown and sorted by wind. Grains having a high specific gravity pass through the sieve 53 and the sorting net 63, and from the first spiral 65, a transport spiral (not shown) is formed. It is conveyed to the Glen tank 30 through the built-in first-grained grain cylinder 16, and is temporarily stored in the Glen tank 30. As shown in FIG. 1, a paddy discharge port 311a of the tank main body 31a and a paddy discharge port 311b of the auxiliary tank 31b are provided on the longitudinal axis of the first graining cylinder 16.
[0031]
The remaining threshed grain culm that has reached the end of the handling chamber 66 of the threshing device 15 and is still long is transported by being sandwiched between a straw chain and a spike chain (not shown), and is provided at the rear of the threshing device 15. Into a straw cutter, and cut into a field.
[0032]
A grain tank spiral (not shown) for grain transfer is provided at the bottom of the Glen tank 30, and a discharge auger comprising a vertical auger 18 and a horizontal auger 19 is provided on a spiral drive shaft (not shown) for driving the Glen tank spiral. The grains stored in the Glen tank 30 are discharged to the outside of the combine 1 from the discharge auger discharge port. The Glen tank spiral, the vertical auger spiral (not shown), and the horizontal auger spiral (not shown) are driven to rotate by receiving the power of the engine 23, and transport the stored grains by the screw conveyor action of the respective spiral blades. I do.
[0033]
The power source of the combine 1 according to the present embodiment is basically the engine 23, but the generator 23 is operated by the engine 23 using the electric motor 24 in addition to the engine 23 as shown in FIG. It is configured to switch between a charging mode for charging the electric motor 24 and an assist mode for assisting the engine 23 with the electric motor 24. Then, only when the load on the engine 23 is small, the battery 25 for driving the electric motor 24 is charged via the charger 26 using the generator 25.
[0034]
When the engine 23 is driven, the generator 25 also operates, and the electric power generated by the generator 25 is stored in the battery 27 from the charger 26. The electric power stored in the battery 27 is supplied from the controller 29 to the electric motor 24 via the inverter 28, and is used for the operation of the reaper 6, the threshing device 15, and other working machines 33. Even if the engine drive output is reduced in this way, the electric motor 24 can supplement the engine output, so that the amount of exhausted combustion exhaust gas from the engine 23 can be reduced, and the vibration of the engine 23 is relatively small. The vibration of the body is reduced.
[0035]
Although the single line in FIG. 5 is the charging mode and the double line is the assist mode, as a means for switching between the charging mode and the assist mode of the electric motor 24, the "on" of the threshing clutch 32 shown in the control system diagram of FIG. , "Off" means, or the "on", "off" means of the grain stalk sensor 34.
[0036]
Only when the load of the engine 23 is small in the combine 1 on which the engine 23 and the generator 25 are mounted, the driving battery 27 of the electric motor 24 is charged by the generator 25. The load of the engine 23 is detected by an engine load sensor 35, and the rotation speed of the engine 23 is measured by an engine rotation sensor 36. As shown in FIGS. 5 and 6, the charging solenoid 38 is always on while the engine 23 is operating, and when the electric motor 24 enters the assist mode, the motor power transmission solenoid 39 is turned on.
[0037]
The engine transmission solenoid 40 is used for turning the engine transmission “on” and “off”, and operates when the operation is set only in the assist mode.
[0038]
In the operation of the combine 1, when the planted cereal culm such as rice in the field is not cut, the engine 23 has enough power only with the horsepower required for traveling. For this reason, the "on" and "off" operations of the threshing clutch 32 or the cereal culm sensor 34, which is a means for judging a state where the planted cereal culm such as rice is not mowed, are switched between the charging mode and the assist mode of the electric motor 24. It is effective to use the switching condition.
[0039]
Further, in working states such as cutting and threshing, the engine output is assisted by the electric motor 24 to secure necessary horsepower, so that the horsepower of the engine 23 can be reduced, which is effective in reducing fuel consumption and suppressing exhaust gas.
[0040]
The load of the engine 23 may be determined based on the rack position of the electronic governor engine and the rotation speed of the mechanical governor engine. In this way, the outputs of the electric motor 24 and the engine 23 are properly maintained without excess or deficiency.
[0041]
At that time, in the electronic governor engine, the engine load state can be determined based on the load ratio calculated from the engine speed and the rack position. In the case of a mechanical governor engine, since the detection of the amount of movement of a cable or the like is unstable, it is better to determine the horsepower based on a decrease in the engine speed. It is also effective to determine the load based on the exhaust temperature of the engine 23.
[0042]
Further, the combine 1 on which the engine 23 and the electric motor 24 are mounted may be configured such that only the drive system of the threshing device 15 is driven by the electric motor 24.
[0043]
The threshing device 15 is a large device that consumes the horsepower of the engine 23 together with the traveling device 3. By driving this portion with the electric motor 24, the horsepower of the engine 23 can be reduced by almost half, the fuel consumption is reduced, and the effect of reducing air pollution by exhaust gas is great.
[0044]
Further, the motor battery 27 can be charged by the engine-driven generator 25 in a state in which the threshing device 15 is not driven (during paddy discharge, movement between fields, etc.). Therefore, the life of the battery can be prolonged in the normal operation mode.
[0045]
As shown in the conceptual diagram of FIG. 7, a configuration in which the electric motor 24 is disposed in the handling cylinder 69 may be employed. The handling cylinder 69 which is arranged in the threshing device 15 and separates grains from grain culm is a relatively large cylindrical shape, but conventionally, a large space in the handling cylinder 69 has not been utilized so far.
[0046]
By arranging the electric motor 24 for power assist of the engine 23 inside the handling drum 69, the space wasted up to now can be effectively utilized. Further, it is also possible to use the electric motor 24 as a drive source of the handling cylinder 69.
[0047]
Further, as shown in FIG. 7, a configuration may be adopted in which the solar battery 42 is used instead of the generator 25 or as a charging means (including auxiliary means) of the electric motor battery 27, together with the generator 25.
[0048]
The combine 1 cannot be operated on a rainy day due to the characteristics of the operation, and is often used in a state of insolation. The upper surface of the threshing device 15 of the combine 1, the upper surface of the Glen tank 30, the upper surface of the cockpit 20, and the like have wide flat surfaces. From these facts, it is effective to use the solar cell 42 as the charging means of the battery 27 of the electric motor 24.
[0049]
As shown in FIG. 8, when the drive system of the mowing device 6 is driven by the electric motor 24, the driving control of the mowing device 6 can be performed at a continuously variable speed in accordance with the mowing work conditions.
[0050]
This is because the mowing device 6 is driven at a required horsepower of about 10 horsepower, and the drive system of the combine 1 can be made compact by using the electric motor 24 and the battery 27 that match this driving force. Further, the output of the engine 23 can be reduced by the driving force of the mowing device 6, which is effective in suppressing the fuel consumption and the exhaust gas.
[0051]
Also, the cutting speed of the cutting device 6 often changes according to the vehicle speed as shown in FIG. 9, and frequently changes particularly in the high cutting speed mode. Therefore, by driving the mowing device 6 with the electric motor 24 and the battery 27, the speed of the mowing device 6 can be changed without using the clutch. For example, in order to appropriately cause partial lodging of the planted grain culm, it is possible to easily shift the speed of any reaping device 6. In addition, when the electric motor 24 is used, the control of the shift speed of the traveling device 3 becomes extremely easy, so that the speed of the reaper 6 can be changed without stopping the traveling of the combine 1, thereby improving the reaping work efficiency.
[0052]
At this time, since the rate-determining stage of the harvesting operation is an operation for causing the planted cereal culm such as the laid-down planted cereal culm, a raising device (not shown) for operating the raising lug (not shown) of the cutting device 6 or the like. ) May be changed by the electric motor 24.
[0053]
Although a cooling fan is provided as an air cooling device for the engine 23, in this embodiment, the cooling fan 43 may be driven by the electric motor 24 as shown in FIG.
[0054]
Here, since the required horsepower of the cooling fan 43 is relatively small, the size of the electric motor 24 can be reduced, and the size of the battery 27 can be reduced.
[0055]
In addition, by rotating the electric motor 24 in the forward and reverse directions, the rotation direction of the cooling fan 43 can also be in the forward and reverse directions. Therefore, as shown in FIG. 11, it is effective in removing dust adhering to the net 45 installed on the front of the radiator 44.
[0056]
Further, in the conventional configuration in which the cooling fan 43 is operated using only the engine power, in order to take out the power from the engine 23 to the rotating shaft of the cooling fan 43, the cooling fan 43 and the fan 43 are inevitably provided near the engine 23. Although it was necessary to arrange the radiator 44 to be used and cooled by air, in the present embodiment, although not shown, the cooling fan 43 driven and controlled by the electric motor 24 may be arranged anywhere. There are no restrictions on position. Therefore, the constituent radiator 44 of the present embodiment can be arranged at an arbitrary place with little dust.
[0057]
Further, in the conventional configuration in which the cooling fan 43 is operated using only the engine power, the cooling fan 43 operates the output of the engine 23 by the belt transmission mechanism, but it is difficult to maintain the belt. However, since the cooling fan 43 is driven by the electric motor 24, there is no need to use a belt, and maintenance of the belt transmission mechanism is not required.
[0058]
Further, as shown in FIG. 12, a hydraulic pump 46 for driving a working machine such as a rolling cylinder or a pitching cylinder for rolling and pitching the traveling frame 2 or a compressor 47 of an air conditioner in the cockpit 20 as shown in FIG. May be driven by the electric motor 24 of the present embodiment.
[0059]
Conventionally, since the hydraulic pump 46 is driven by the engine 23, the hydraulic pump 46 has to be disposed in a limited place in or around the engine body. In this case, the position of the hydraulic pump 46 is away from the valve, the oil tank, and the like, so that a long hydraulic hose is required or complicated piping is routed.
[0060]
Since the required horsepower of the hydraulic pump 46 is relatively small, the life of the battery 27 for the electric motor can be extended, and the capacity of the electric motor 24 can be reduced, so that the arrangement of the hydraulic pump 46 is facilitated. In addition, the hydraulic pump 46 can be arranged at any suitable location, and the hydraulic piping and the like to the hydraulic pump 46 can be made compact.
[Brief description of the drawings]
FIG. 1 is a left side view of a combine harvester for harvesting cereals according to an embodiment of the present invention.
FIG. 2 is a front elevation view of the combine of FIG. 1;
FIG. 3 is a plan view of the combine shown in FIG. 1;
FIG. 4 is a schematic side view of the internal structure of the combine threshing apparatus of FIG. 1;
FIG. 5 is an example of a drive system diagram using an engine and an electric motor of the combine in FIG. 1;
FIG. 6 is a main control system diagram of the combine shown in FIG. 1;
FIG. 7 is an example of a drive system diagram using an engine and an electric motor of the combine of FIG. 1;
FIG. 8 is an example of a drive system diagram using an engine and an electric motor of the combine in FIG. 1;
9 is a diagram showing the relationship between the cutting speed and the vehicle speed in the drive system diagram of FIG.
FIG. 10 is an example of a drive system diagram using an engine and an electric motor of the combine in FIG. 1;
11 is an example of an arrangement diagram of an electric motor that drives an engine and a cooling fan of the combine in FIG. 10;
FIG. 12 is an example of a drive system diagram using an engine and an electric motor of the combine of FIG. 1;
FIG. 13 is an example of a drive system diagram using an engine and an electric motor of the combine in FIG. 1;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Combine 2 Traveling frame 3 Traveling device 4 Crawler 6 Harvesting device 7 Weeding device 8 Grain culm raising device 14 Feed chain 15 Threshing device 16 First-most grained cylinder 18 Vertical auger 19 Horizontal auger 20 Cockpit 21 Traveling transmission device 23 Engine (Internal combustion engine) 24 Electric motor 25 Generator 26 Charger 27 Battery 28 Inverter 29 Controller 30 Glen tank 31a Tank body 31b Auxiliary tank 32 Threshing clutch 33 Work implement 34 Grain culm sensor 35 Engine load sensor 36 Engine rotation sensor 38 Charging solenoid 39 Motor power transmission solenoid 40 Engine transmission solenoid 42 Solar cell 43 Cooling fan 44 Radiator 45 Net 46 Hydraulic pump 47 Compressor 50 Sorting unit 51 Rocking shelf 53 Sheave 63 Sorting net 65 First spiral 66 Handling room 9 threshing drum 69a 扱歯 74 扱網 79 winnowing fan 311a rice discharge port 311b rice outlet

Claims (4)

In a self-propelled agricultural working machine including a traveling frame 2, a traveling transmission 21 provided on the traveling frame 2, an internal combustion engine 23 that transmits power to the traveling transmission 21, and an electric motor 24,
A generator 25 that generates power by driving the internal combustion engine 23;
A battery 27 for storing electric power generated by the generator 25 for driving the electric motor 24;
One or more working devices (6, 15, 33) operated by the electric motor 24 and / or the internal combustion engine 23;
A charging mode in which the electric power generated by the generator 25 by the driving force of the internal combustion engine 23 is stored in the battery 27, and a part or all of the power source of the working device (6, 15, 33) using the electric power stored in the battery 27 Controller 29 for selecting any one of the assist modes to be used as the output mode and controlling the output
An agricultural working machine comprising: When the driving force load on the internal combustion engine 23 by the working device (6, 15, 33) operated by the internal combustion engine 23 is small, the controller 29 is operating the working device (6, 15, 33). The self-propelled agricultural working machine according to claim 1, further comprising a configuration for activating a charging mode for charging the battery (27). The self-propelled agricultural work machine according to claim 1 or 2, wherein a solar cell (42) is provided as a power generation source to be stored in the battery (27), instead of the generator (25) or together with the generator (25). The self-propelled agricultural work machine according to claim 3, a cutting device 6 for cutting the planted grain culm supported by the traveling frame 2, a threshing device 15 for threshing the cut culm, and temporarily storing the threshed grain. A self-propelled agricultural working machine including a Glen tank 30 and a driver's cockpit 20;
A self-propelled agricultural work machine, wherein a solar cell 42 is attached to at least one ceiling surface of the threshing device 15, the Glen tank 30, and the cockpit 20.

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