Harvesting Machine

Abstract

To provide a harvester improved in battery installation configuration to ensure stability of the machine's progress and allow appropriate harvesting work, which solves the situation of a combine that has multiple batteries installed below a threshing section to supply electricity to an electric motor that drives the machine, where the multiple batteries are installed on one side of the machine in lateral deviation, thus lateral weight balance of the machine is deviated, and as a result, stability of the machine's progress during harvesting is poor, which causes problem in carrying out appropriate harvesting work.SOLUTION: A battery mounting section 9 is provided on a machine frame 1, in which multiple batteries 40 that supply electric power to an electric motor are mounted. One or more partitions 9a, 9b separating the front and back / or the left and right from each other are provided in the battery mounting section 9, and at least two or more compartments 9c in which the batteries 40 are placed are configured. When the batteries 40 are mounted in at least one or more of the compartments 9c, electric power is supplied to an electric motor 8.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a harvester for carrying out harvesting operations in a farm field. [Background technology]

[0002] There is a combine harvester in which multiple batteries that supply electricity to the electric motor that drives the machine are attached by being inserted from the side of the machine below the threshing section (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-055223 A Summary of the Invention [Problem to be solved by the invention]

[0004] Because multiple batteries are mounted on one side of the aircraft, the left and right weight balance is off, making the aircraft less stable when harvesting, and creating challenges in carrying out proper harvesting operations.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a harvester in which the battery mounting configuration is improved to stabilize the movement of the machine body and enable appropriate harvesting work to be performed. [Means for solving the problem]

[0006] The first aspect of the present invention is In a harvester having a traveling device (2), harvesting parts (3, 4), and an electric motor (8) serving as a drive source provided on a machine frame (1), a battery mounting part (9) is provided on the machine frame (1) for mounting a plurality of batteries (40) for supplying electricity to the electric motor (8), at least one partition (9a, 9b) is provided on the battery mounting part (9) for separating the battery mounting part (9) into front and rear and / or left and right to form at least two or more partition frames (9c) for mounting the batteries (40), and electricity is supplied to the electric motor (8) when a battery (40) is mounted in at least one of the partition frames (9c), This harvester is characterized in that a partition (9a) is arranged in the front-to-rear direction at the center of the left and right of the battery mounting section (9) to form partition frames (9c) on the left and right of the partition (9a), and a weight sensor is provided to detect a weight difference between the left and right sides of the battery mounting section (9).When the weight difference between the left and right sides of the battery mounting section (9) is a predetermined value or more, no current is applied to the electric motor (8), but when only one battery (40) is mounted on the battery mounting section (9), current is applied to the electric motor (8). The second aspect of the present invention is In a harvester having a traveling device (2), harvesting parts (3, 4), and an electric motor (8) serving as a drive source provided on a machine frame (1), a battery mounting part (9) is provided on the machine frame (1) for mounting a plurality of batteries (40) for supplying electricity to the electric motor (8), at least one partition (9a, 9b) is provided on the battery mounting part (9) for separating the battery mounting part (9) into front and rear and / or left and right to form at least two or more partition frames (9c) for mounting the batteries (40), and electricity is supplied to the electric motor (8) when a battery (40) is mounted in at least one of the partition frames (9c), This harvester is characterized in that a partition (9b) is arranged in the left-right direction at the center of the front-to-rear of the battery mounting section (9) to form partition frames (9c) at the front and rear of the partition (9b), and a weight sensor is provided to detect a weight difference between the front and rear of the battery mounting section (9).When the weight difference between the front and rear of the battery mounting section (9) is a predetermined value or more, no current is applied to the electric motor (8), but when only one battery (40) is mounted on the battery mounting section (9), current is applied to the electric motor (8). The third aspect of the present invention is This is a first or second harvester of the present invention, characterized in that the battery mounting section (9) is configured with a partition (9c) made up of a front-to-rear partition (9a) and a left-to-right partition (9b), and one of the front-to-rear partitions (9a) and the left-to-right partitions (9b) is one more than the other, so that the partition frame (9c) is an even number. The fourth aspect of the present invention is The harvester according to the first or second aspect of the present invention is characterized in that it is provided with a range extender (50) consisting of a generator (50a) and a generator engine (50b), and a battery monitoring device, and when the remaining charge in the battery (40) falls below a set value, when the scheduled work time has arrived, or when a work clutch that turns the drive of the harvesting parts (3, 4) on and off is turned on, the range extender (50) is operated to replenish power to the battery (40). The first invention related to the present invention is a harvester having a traveling device 2, harvesting sections 3 and 4, and an electric motor 8 as a drive source mounted on a body frame 1, a battery mounting section 9 for mounting a plurality of batteries 40 that supply electricity to the electric motor 8 is provided on the body frame 1, and the battery mounting section 9 is provided with at least one partition 9a, 9b separating the battery mounting section 9 from the front and rear and / or left and right to form at least two or more section frames 9c for mounting the batteries 40, and electricity is supplied to the electric motor 8 when a battery 40 is mounted in at least one of the partition frames 9c.

[0007] The first invention related to the present invention According to this, a battery mounting section 9 for mounting a plurality of batteries 40 that supply electricity to an electric motor 8 is provided on a body frame 1, and at least one partition 9a, 9b that separates the battery mounting section 9 into front and rear and / or left and right sections is provided in the battery mounting section 9 to form at least two or more section frames 9c for mounting the batteries 40. Electricity is supplied to the electric motor 8 when a battery is mounted in at least one or more of the section frames 9c. Therefore, the number of batteries 40 to be mounted can be selected according to the size of the field, without unnecessarily increasing the weight of the machine, and costs can be reduced.

[0008] The second invention related to the present invention The partition 9a is disposed in the front-rear direction at the center of the left and right of the battery mounting section 9, and a partition frame 9c is formed on the left and right of the partition 9a. A weight sensor is provided to detect the difference in weight between the left and right of the battery mounting section 9, and when the difference in weight between the left and right of the battery mounting section 9 is equal to or greater than a predetermined value, no current is applied to the electric motor 8. However, when only one battery 40 is mounted on the battery mounting section 9, current is applied to the electric motor 8. The first invention related to the present invention It is a harvesting machine.

[0009] The second invention related to the present invention According to this, the partition 9a is arranged in the front-to-rear direction at the center of the left and right of the battery mounting section 9, and partition frames 9c are formed on the left and right of the partition 9a, and a weight sensor is provided to detect the weight difference between the left and right sides of the battery mounting section 9.When the weight difference between the left and right sides of the battery mounting section 9 is equal to or greater than a predetermined value, no current is applied to the electric motor 8. This prevents harvesting work from being performed in a state where the left and right weight balance is off, and prevents problems during harvesting work from occurring.

[0010] Furthermore, when only one battery 40 is mounted on the battery mounting section 9, electricity is applied to the electric motor 8. Therefore, by mounting only one battery 40 according to the size of the field, the weight of the machine is not unnecessarily increased and costs can be reduced.

[0011] The third invention related to the present invention The partition 9b is disposed in the left-right direction at the center of the front-rear of the battery mounting section 9 to form partition frames 9c at the front and rear of the partition 9b, and a weight sensor is provided to detect the difference in weight between the front and rear of the battery mounting section 9, so that when the difference in weight between the front and rear of the battery mounting section 9 is equal to or greater than a predetermined value, no current is applied to the electric motor 8, but when only one battery 40 is placed on the battery mounting section 9, current is applied to the electric motor 8. The first invention related to the present invention It is a harvesting machine.

[0012] The third invention related to the present invention According to this, the partition 9b is arranged in the left-right direction at the center of the front-to-rear of the battery mounting section 9 to form partition frames 9c at the front and rear of the partition 9b, and a weight sensor is provided to detect the difference in weight between the front and rear of the battery mounting section 9. When the weight difference between the front and rear of the battery mounting section 9 is equal to or greater than a predetermined value, no current is applied to the electric motor 8. This prevents harvesting work from being performed with an unbalanced front-to-rear weight balance, and prevents problems during harvesting work from occurring.

[0013] Furthermore, when only one battery 40 is mounted on the battery mounting section 9, electricity is applied to the electric motor 8. Therefore, by mounting only one battery 40 according to the size of the field, the weight of the machine is not unnecessarily increased and costs can be reduced.

[0014] The fourth invention related to the present invention The battery mounting section 9 is configured to have a partition 9c formed by a partition 9a in the front-rear direction and a partition 9b in the left-right direction, and one of the partitions 9a in the front-rear direction and the partitions 9b in the left-right direction is one more than the other, so that the partitions 9c are an even number. The first invention related to the present invention It is a harvesting machine.

[0015] The fourth invention related to the present inventionAccording to the above, the battery mounting section 9 is configured with a partition 9c made up of a front-to-rear partition 9a and a left-to-right partition 9b, and one of the front-to-rear partitions 9a and the left-to-right partitions 9b is one more than the other, so that there is an even number of partitions 9c.As a result, the maximum number of batteries 40 that can be mounted is an even number, and when the maximum number of batteries 40 is mounted, the weight balance is good, allowing appropriate harvesting work to be performed.

[0016] Fifth Invention Related to the Present Invention The system is provided with a range extender 50 consisting of a generator 50a and a generator engine 50b, and a battery monitoring device, and operates the range extender 50 to replenish power to the battery 40 when the remaining charge of the battery 40 falls below a set value, when the scheduled work time arrives, or when the work clutch that turns on and off the drive of the harvesting units 3 and 4 is turned on. A harvester according to any one of the first to fourth inventions related to the present invention.

[0017] Fifth Invention Related to the Present Invention According to the invention, a range extender 50 consisting of a generator 50a and a generator engine 50b and a battery monitoring device are provided, and when the remaining charge in the battery 40 falls below a set value, when the scheduled work time has arrived, or when a work clutch that turns the drive of the harvesting units 3 and 4 on and off is turned on, the range extender 50 is operated to replenish power to the battery 40, thereby extending the continuous work time.

[0018] Furthermore, the range extender 50 operates when the capacity of the battery 40 falls below a predetermined value and when the scheduled operation time arrives, thereby reducing noise.

[0019] In addition, when the harvesting units 3 and 4 are driven and the working noise is loud, if the range extender 50 is operated to supplement power, the engine noise of the range extender 50 is not bothersome. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a side view of a combine harvester according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a plan view of the main parts of the harvesting device. [Diagram 3]FIG. [Figure 4] FIG. [Diagram 5] FIG. 11 is a plan view of a main part of a second embodiment of the present invention. [Figure 6] FIG. 13 is a plan view of a main part of a third embodiment of the present invention. [Figure 7] FIG. 11 is a control flow diagram of a third embodiment of the present invention. [Figure 8] FIG. 11 is a control flow diagram of a third embodiment of the present invention. [Figure 9] FIG. 11 is a control flow diagram of a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, a combine harvester, which is an example of a harvester according to an embodiment of the present invention, will be described in detail with reference to the drawings.

[0022] For ease of understanding, the following description will refer to the front as the front side, the rear as the rear side, the right hand side as the right side, and the left hand side as the left side, as viewed from the pilot's perspective; however, the present invention is not limited to these terms.

[0023] <Overall composition> As shown in Fig. 1, the combine harvester has a traveling device 2 consisting of a pair of left and right crawlers for traveling in a field, provided below the machine frame 1, a threshing device 3 for threshing and sorting is provided on the upper left side of the machine frame 1, and a reaping device 4 for harvesting grain stalks in the field is provided in front of the threshing device 3. In this embodiment, the threshing device 3 and the reaping device 4 are collectively referred to as the harvesting section.

[0024] The grains threshed and sorted by the threshing device 3 are stored in a grain tank 5 provided on the right side of the threshing device 3, and the stored grains are discharged to the outside through a discharge pipe 7.

[0025] In addition, a control unit 6 on which the operator sits is provided on the upper right side of the body frame 1, and an electric motor 8 that serves as the drive source for the running device 2 and the harvesting unit is mounted below the control unit 6, and a battery mounting unit 9 is provided on the entire upper surface of the body frame 1 below the threshing device 3 and the grain tank 5.

[0026] <Reaping device 4> As shown in Figures 1 and 2, the harvesting device 4 is attached to a harvesting frame 30, which serves as the main frame, formed by a post-harvesting frame 28, a harvesting transmission case 29 arranged horizontally in the left-right direction at the tip of the post-harvesting frame 28, and a connecting frame 29A arranged vertically upward from the harvesting transmission case 29.

[0027] The base of the post-cutting frame 28 is attached to a horizontal shaft that is rotatably supported on the upper part of a pair of left and right suspension bases that are erected on the machine frame 1.

[0028] The harvesting device 4 is equipped with a grass dividing rod 31 located at the front lower part for dividing the planted culms, a plurality of lifting devices 32 located behind the grass dividing rod 31 for raising up fallen planted culms, a cutting blade device 33 located at the lower rear part of the lifting device 32 for cutting the base of the planted culms, and a transport device 34 located behind the lifting device 32 and the cutting blade device 33 for transporting the harvested culms toward the threshing section transport device 12 located on one side of the threshing device 3.

[0029] The transport device 34 is composed of a stalk base transport device 34A that transports the stalk base side of the harvested culm, and a tip transport device 34B that transports the tip side.

[0030] Of the multiple lifting devices 32, the right-most lifting device 32 has a mowing electric motor 35, a mowing battery 36, and a control device (MDU) 37 mounted within the lifting case 32a, and the right-most lifting device 32 is driven by the mowing electric motor 35. The driving force of the mowing electric motor 35 is transmitted to the other lifting devices 32 and the cutting blade device 33 via the mowing transmission case 29, thereby driving the other lifting devices 32 and the cutting blade device 33 as well.

[0031] Therefore, the electric mowing motor 35, the mowing battery 36 and the MDU 37 are arranged in a concentrated manner inside the lifting case 32a of the lifting device 32 at the right end, which allows easy access during maintenance and improves the ease of maintenance work.

[0032] If the reaping device 4 moves left and right during maintenance, the electric reaping motor 35, reaping battery 36, and MDU 37 will necessarily move left and right as well.

[0033] In addition, since the post-cutting frame 28 is a frame that does not have a transmission mechanism inside, when removing the cutting device 4, removing the cutting transmission case 29 from the post-cutting frame 28 allows the cutting device 4 to be easily removed.

[0034] In addition, because the lifting case 32a is long in the vertical direction, the electric mowing motor 35, the mowing battery 36, and the MDU 37 can be arranged compactly by vertically arranging them within the lifting case 32a.

[0035] In addition, the MDU 37 controls the electric mowing motor 35 in accordance with vehicle speed information from a vehicle speed sensor mounted on the machine body to synchronize the motor with the vehicle speed, thereby enabling proper mowing work to be performed without clogging.

[0036] The MDU 37 is also provided with a sensor that detects the operating position of the main shift lever 16, which will be described later, and when it detects that the main shift lever 16 has been operated to reverse, it stops the electric mowing motor 35 and stops driving the mowing device 4.

[0037] In the above example, the electric mowing motor 35, the mowing battery 36, and the MDU 37 are provided as the drive source for the mowing device 4. However, the mowing device 4 may be driven by the electric motor 8.

[0038] <Threshing Machine 3> The threshing device 3 has a threshing chamber at the upper front side for threshing the stalks, and a sorting chamber below the threshing chamber for sorting the threshed grains.

[0039] In the threshing chamber, a threshing drum having a plurality of threshing teeth is supported by a threshing drum shaft journalled on the front and rear walls.

[0040] A straw supply port 26A is opened in the lower left part of the front wall of the threshing chamber, a threshing port 26B is opened in the lower left part of the left wall along the threshing body, and a straw discharge port 26C is opened in the lower left part of the rear wall.

[0041] In addition, a threshing section transport device 12 is installed parallel to the left side of the handling chamber, which clamps the base of the grain stalks along the threshing mouth 26B and transports them rearward.The straw-removed grain stalks that have been threshed and transported by the threshing section transport device 12 are handed over to a straw removal transport device installed behind the threshing section transport device 12 and transported further rearward, after which they are cut by a pair of straw removal cutters and discharged to the outside.

[0042] A oscillating sorting device is provided at the top of the sorting chamber, and a first winnower that blows air to the front sieve of the oscillating sorting device, a first receiving trough that collects grains that drop from the oscillating sorting device, a second winnower that blows air to the rear sieve of the oscillating sorting device, and a second receiving trough that collects second grains, which are grains with stalks and the like attached that drop from the oscillating sorting device, are installed in this order from the front to the bottom of the sorting chamber. The grains collected in the first receiving trough are transferred to the grain tank 5 by the first transfer spiral installed in the first receiving trough, and the grains etc. collected in the second receiving trough are transferred to the second processing chamber by the second transfer spiral installed in the second receiving trough.

[0043] The right rear of the handling chamber is connected to the dust treatment chamber, inside which a dust treatment drum with a screw blade body on its outer periphery is journalled in the front-to-back direction, and at the front of the dust treatment chamber is a second treatment chamber for treating and returning the second-class grains. A second treatment drum with intermittent spiral blades on its outer periphery is journalled inside the second treatment chamber. In addition, a dust treatment fan is located at the rear upper side of the oscillating sorting shelf to suck in straw dust and other debris generated during threshing and sorting and discharge it outside the machine.

[0044] <Control Unit 6> The control section 6 is provided with a cockpit 17, and on the left side of it is provided a main speed change lever 16 which operates the electric motor 8 to increase / decrease speed and reverse direction to change the vehicle's traveling speed and switch between forward and backward movement, and behind the main speed change lever 16 is provided a sub-speed change lever which operates a stepped sub-speed change device provided in the transmission mechanism within the transmission depending on the lying state of the planted grain stalks, and a reaping / cutting lever which switches the drive of working parts such as the threshing device 3 and the reaping device 4 on and off.

[0045] <Battery mounting section 9> As shown in Figures 3 and 4, a battery mounting section 9 is provided over substantially the entire surface of the upper part of the machine frame 1 below the threshing device 3 and the grain tank 5.

[0046] The battery mounting section 9 consists of a housing made of metal such as stainless steel or iron, or made of synthetic resin or FRP to protect the battery 40, and the interior is divided equally by a vertical wall 9a acting as a partition at the center of the left and right sides of the body and two horizontal walls 9b acting as partitions, allowing a battery 40 to be placed in each compartment 9c. Furthermore, by dividing the interior equally by the vertical wall 9a at the center of the left and right sides of the body and two horizontal walls 9b, strength can be ensured.

[0047] The left and right side walls of the battery mounting section 9 are provided with doors that can be opened and closed freely, and the batteries 40 are inserted and placed in the respective compartments 9c through the doors.

[0048] Each section frame 9c is provided with an input terminal to be connected to the terminal of the battery 40, and the terminal of the battery 40 placed on each section frame 9c is connected to the input terminal of each section frame 9c.

[0049] In the illustrated example, one battery 40 is placed in each of the compartment frames 9c, but a configuration in which a plurality of batteries 40 are placed in each of the compartment frames 9c may also be used.

[0050] In addition, one horizontal wall 9b may be provided at the center position of the front and rear of the aircraft body to provide four section frames 9c, or three or more horizontal frames 9b may be provided to provide eight or more section frames 9c.

[0051] In addition, each section frame 9c of the battery mounting section 9 is configured symmetrically, and by mounting the batteries 40 symmetrically, the left and right balance of the machine body can be prevented from being lost, the direction of travel of the machine body is stabilized, and appropriate harvesting work can be performed.

[0052] In addition, by adding one more wall on one side, i.e., one vertical wall 9a and two horizontal walls 9b, the number of section frames 9c is an even number, and the maximum number of batteries 40 that can be mounted and connected is an even number. Therefore, when the maximum number of batteries 40 are mounted and connected, the weight balance is good, and appropriate harvesting work can be performed.

[0053] In addition, the battery mounting section 9 is provided with left and right weight sensors and front and rear weight sensors, and the detection information thereof is inputted to a battery monitoring system (BMS).

[0054] The battery monitoring device is disposed in the vicinity of the battery mounting unit 9, recognizes the batteries 40 mounted and connected to each compartment 9c of the battery mounting unit 9, and controls them as follows.

[0055] When at least one battery 40 is mounted and connected to the battery mounting section 9, power is supplied to the electric motor 8 to operate the aircraft.

[0056] Therefore, the number of batteries 40 to be mounted can be selected according to the size of the farm field, without unnecessarily increasing the weight of the machine, and costs can be reduced.

[0057] In addition, even if there is a section frame 9c in which a battery 40 is not mounted among the section frames 9c in which a battery 40 is mounted and connected, power is supplied to the electric motor 8 to operate the machine, so that a well-balanced arrangement can be easily achieved when not mounting the maximum number of batteries 40.

[0058] Furthermore, when the left and right weight difference of the battery mounting portion 9 is equal to or greater than a predetermined value based on information from the left and right weight sensors of the battery mounting portion 9, power is not supplied to the electric motor 8. Alternatively, when the batteries 40 are not mounted and connected symmetrically on the left and right sides of the battery mounting portion 9, power is not supplied to the electric motor 8.

[0059] Therefore, when information from the left and right weight sensors of the battery mounting unit 9 indicates that the left and right weight difference of the battery mounting unit 9 is greater than a predetermined value, or when the batteries 40 are not mounted and connected to the battery mounting unit 9 symmetrically on the left and right, power is not supplied to the electric motor 8, thereby preventing harvesting work from being performed in a state where the left and right weight balance is unbalanced, and preventing problems such as leaving stalks uncut.

[0060] However, when there is one battery 40 mounted on the battery mounting section 9, even if information from the left and right weight sensors of the battery mounting section 9 indicates that the left and right weight difference of the battery mounting section 9 is greater than a predetermined value, and even if the batteries 40 are not mounted and connected symmetrically on the battery mounting section 9, power is supplied to the electric motor 8 to operate the aircraft.

[0061] Therefore, when one battery 40 is mounted on the battery mounting section 9, power is supplied to the electric motor 8 to operate the machine regardless of the arrangement of the battery 40, so that only one battery 40 can be mounted and connected according to the size of the field, thereby preventing an unnecessary increase in the machine weight and reducing costs.

[0062] Furthermore, when the information from the front and rear weight sensors of the battery mounting unit 9 indicates that the front and rear weight difference of the battery mounting unit 9 is equal to or greater than a predetermined value, power is not supplied to the electric motor 8. Alternatively, when the batteries 40 are not mounted and connected symmetrically in the front and rear directions on the battery mounting unit 9, power is not supplied to the electric motor 8.

[0063] Therefore, if information from the front and rear weight sensors of the battery mounting unit 9 indicates that the front and rear weight difference of the battery mounting unit 9 is greater than a predetermined value, or if the batteries 40 are not mounted and connected to the battery mounting unit 9 symmetrically in the front and rear, no power is supplied to the electric motor 8, thereby preventing harvesting work from being performed in a state where the front and rear weight balance is off, and preventing problems during harvesting work.

[0064] However, when there is one battery 40 mounted on the battery mounting section 9, even if information from the front and rear weight sensors of the battery mounting section 9 indicates that the front and rear weight difference of the battery mounting section 9 is greater than a predetermined value, and even if the batteries 40 are not mounted and connected symmetrically on the battery mounting section 9 in the front and rear, power is supplied to the electric motor 8 to operate the aircraft.

[0065] Therefore, when one battery 40 is mounted on the battery mounting section 9, power is supplied to the electric motor 8 to operate the machine regardless of the arrangement of the battery 40, so that only one battery 40 can be mounted and connected according to the size of the field, thereby preventing an unnecessary increase in the machine weight and reducing costs.

[0066] In summary, since the drive system is implemented using electric motors 8, 35, the drive system for each part (transmission gears and hydraulic parts) is simplified, assembly is simplified, and costs are reduced. In addition, there is less vibration and noise compared to engine drive, which helps reduce fatigue during long harvesting work.

[0067] <Other embodiments>

[0068] (1) FIG. 5 shows a second embodiment in which a spare battery 41 is provided.

[0069] The spare battery 41 is provided on the rear end of the vehicle frame 1 .

[0070] Therefore, the spare battery 41 can be easily accessed from the rear of the aircraft, and replacement and maintenance work can be easily and efficiently performed.

[0071] When the charging rate of a battery 40 (hereinafter referred to as the main battery 40) mounted on the battery mounting section 9 falls below a specified line, the battery monitoring device starts charging the spare battery 41 from the main battery 40, in preparation for the main battery 40 running out of charge.

[0072] Therefore, it is possible to cope with unexpected situations such as being unable to leave the field due to the main battery 40 running out of charge.

[0073] If the charge rate of the spare battery 41 greatly exceeds 50% when charging from the main battery 40 to the spare battery 41 begins, the battery monitoring device transfers power from the spare battery 41 to the main battery 40 and supplies the power of the spare battery 41 to the electric motor 8 to operate the aircraft.

[0074] The charge rate of the spare battery 41 is kept at around 50% to prevent deterioration.

[0075] (2) FIGS. 6 to 9 show a third embodiment in which a range extender 50 is mounted.

[0076] The range extender 50 is comprised of a generator 50 a and a generator engine 50 b , and is provided on the rear end of the aircraft frame 1 .

[0077] The battery monitoring device controls the range extender 50 according to the control flow shown in FIG.

[0078] That is, the battery monitoring device controls the range extender 50 to operate and supply power to the battery 40 when the capacity of the battery 40 mounted and connected to the battery mounting section 9 falls below a predetermined value and when the planned work time is reached (when the battery charging start time predicted from the conditions of the planned work field arrives).

[0079] Therefore, the range extender 50 replenishes power to the battery 40, so that the operation can continue for a longer period of time.

[0080] Furthermore, the range extender 50 operates when the capacity of the battery 40 falls below a predetermined value and when the scheduled operation time arrives, thereby reducing noise.

[0081] In addition, when the work clutch that turns on and off the drive of the reaping device 4 or the threshing device 3 is turned on, the range extender 50 is operated to replenish the battery 40 with power.

[0082] Therefore, when the reaping device 4 or the threshing device 3 is being driven and making a loud operating noise, if the range extender 50 is operated to supplement power, the engine noise of the range extender 50 will not be bothersome.

[0083] In addition, a return switch is provided in the control unit 6, and when the operator operates the return switch when finishing work in the field and returning to the storage location of the combine, the battery monitoring device controls the range extender 50 according to the control flow shown in Figure 8.

[0084] That is, normally, the range extender 50 is operated when the capacity of the battery 40 falls below a predetermined value of 30%, but when the return switch is operated, the range extender 50 is operated to supply power to the battery 40 when the capacity of the battery 40 falls below 50%, which is more than the predetermined value, and the battery 40 is charged during the return to prepare for the next task.

[0085] In addition, if the combine is equipped with a GPS receiver and recognizes that the vicinity of the work field is a residential area from the map data recorded in the control device (or the map data recorded in the main server that supports the combine), the battery monitoring device controls the range extender 50 according to the control flow shown in Figure 9.

[0086] That is, normally, the range extender 50 is activated when the capacity of the battery 40 falls below a predetermined value of 30%, but if it is recognized that the vicinity of the work field is a residential area, the range extender 50 is changed to be activated to supply power to the battery 40 when the capacity of the battery 40 falls below 20%, which is less than the predetermined value, thereby reducing noise in the vicinity of the residential area.

[0087] In addition, a mobile terminal such as a smartphone or tablet may be used to communicate with the combine harvester and manually operate the range extender 50 to supply power to the battery 40. [Explanation of symbols]

[0088] 1 Aircraft frame 2 Running gear 3 Harvesting section (threshing equipment) 4. Harvesting section (harvesting device) 8 Electric motor 9 Battery compartment 9a Partition (vertical wall) 9b Partition (side wall) 9c District 40 Battery 50 Range Extender 50a generator 50b Generator engine

Claims

1. In a harvester having a traveling device (2), harvesting parts (3, 4), and an electric motor (8) serving as a drive source provided on a machine frame (1), a battery mounting part (9) is provided on the machine frame (1) for mounting a plurality of batteries (40) for supplying electricity to the electric motor (8), at least one partition (9a, 9b) is provided on the battery mounting part (9) for separating the battery (40) from the front and rear and / or the left and right to form at least two or more partition frames (9c) for mounting the batteries (40), and electricity is supplied to the electric motor (8) when a battery (40) is mounted in at least one or more of the partition frames (9c), A harvester characterized in that a partition (9a) is arranged in the front-to-rear direction at the left-to-right center of the battery mounting section (9) to form partition frames (9c) on the left and right of the partition (9a), and a weight sensor is provided to detect a weight difference between the left and right sides of the battery mounting section (9), so that when the weight difference between the left and right sides of the battery mounting section (9) is a predetermined value or more, no current is passed through the electric motor (8), but when there is only one battery (40) mounted on the battery mounting section (9), current is passed through the electric motor (8).

2. A harvesting machine having a running gear (2), harvesting parts (3, 4), and an electric motor (8) serving as a drive source mounted on a machine frame (1), a battery mounting part (9) is provided on the machine frame (1) for mounting a plurality of batteries (40) which supply electricity to the electric motor (8), at least one partition (9a, 9b) is provided in the battery mounting part (9) to separate the battery mounting part (9) into front and rear and / or left and right to form at least two or more section frames (9c) for mounting the batteries (40), and electricity is supplied to the electric motor (8) when a battery (40) is mounted in at least one place on the section frame (9c), A harvester characterized in that a partition (9b) is arranged in the left-right direction at the center of the front and rear of the battery mounting section (9) to form a partition frame (9c) at the front and rear of the partition (9b), and a weight sensor is provided to detect a weight difference between the front and rear of the battery mounting section (9) so that when the weight difference between the front and rear of the battery mounting section (9) is a predetermined value or more, no current is applied to the electric motor (8), but when there is only one battery (40) mounted on the battery mounting section (9), current is applied to the electric motor (8).

3. A harvester as described in claim 1 or 2, characterized in that the battery mounting section (9) is configured with a partition (9c) in the front-to-rear direction and a partition (9a) in the left-to-right direction, and one of the partitions (9a) in the front-to-rear direction and the partition (9b) in the left-to-right direction is one more than the other, thereby configuring the partition frame (9c) in an even number.

4. The harvester according to claim 1 or 2, further comprising a range extender (50) consisting of a generator (50a) and a generator engine (50b) and a battery monitoring device, and the range extender (50) is operated to replenish power to the battery (40) when the remaining charge in the battery (40) falls below a set value, when the scheduled work time is reached, or when a work clutch that turns the drive of the harvesting parts (3, 4) on and off is turned on.

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