JP2014183800A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester that can perform clogging removal operation in a reaping part smoothly and further safely.SOLUTION: A combine harvester 1 comprises a reel 21, a cutting blade 22, a PF auger 23, an FH conveyor 24, electric motors 91a, 92a, 93a, and 94a, a control device 100 and a clogging removal operation tool 78. The control device 100 reversely rotates the PF auger 23 and the FH conveyor 24 respectively while stopping the reel 21 and the cutting blade 22 respectively by receiving a signal from the clogging removal operation tool 78.

Description

  The present invention relates to a combine.

Conventionally, a combine technique in which an electric motor is connected to each part (reel, cutting blade, PF auger, and FH conveyor) of a cutting part and the cutting part is driven by each of the electric motors is known (for example, Patent Documents). 1).
Conventionally, when clogging occurs in the cutting part, the operator checks the location where the clogging has occurred and manually removes the clogging or reversely rotates the PF auger.
When clogging occurs in the cutting part, there is a demand for smooth clogging work. There is also a demand for safer clogging work.

JP 2009-171917 A

  The present invention provides a combine that can smoothly perform clogging removal work of a cutting part and can be performed more safely.

The combine according to claim 1 is:
A reel that stirs cereals,
A reel driving device for driving the reel;
A cutting blade that cuts the cereals,
A cutting blade driving device for driving the cutting blade;
A platform auger that captures the cereals harvested by the cutting blade;
An auger drive for driving the platform auger;
A feeder house conveyor that conveys the cereal grains taken in by the platform auger to the threshing unit;
A conveyor driving device for driving the feeder house conveyor;
A controller for controlling the operations of the reel, the cutting blade, the platform auger, and the feeder house conveyor by operating the reel driving device, the cutting blade driving device, the auger driving device, and the conveyor driving device;
A clogging removal operation tool connected to the control device;
With
The control device reversely rotates the platform auger and the feeder house conveyor with the reel and the cutting blade stopped by receiving a signal from the clogging removal operation tool.

The combine according to claim 2 is:
An auger load detecting means for detecting a load of the auger drive device;
The control device stops the platform auger when the detected value of the auger load detecting means increases to a predetermined first auger load upper limit value when the platform auger is rotating forward.

In the combine according to claim 3,
The control device is configured to stop the platform auger when the detected value of the auger load detecting means increases to a predetermined second auger load upper limit value when the platform auger is reversely rotated.
The second auger load upper limit value is set larger than the first auger load upper limit value.

The combine according to claim 4 is:
Conveyor load detection means for detecting the load of the conveyor drive device,
The control device stops the feeder house conveyor when the feeder house conveyor is rotating forward and the detected value of the conveyor load detecting means increases to a predetermined first conveyor load upper limit value.

In the combine according to claim 5,
The control device is configured to stop the feeder house conveyor when the detection value of the conveyor load detecting means increases to a predetermined second conveyor load upper limit value when the feeder house conveyor is rotated in reverse.
The second conveyor load upper limit value is set larger than the first conveyor load upper limit value.

The combine according to claim 6 is:
Equipped with a battery
The auger drive device and the conveyor drive device are driven by electric power from the battery when the engine is stopped.

  According to the combine described in claim 1, since the clogging work is started when the operator operates the clogging work, the clogging work can be smoothly performed. In addition, since the platform auger and the feeder house conveyor are rotated in the reverse direction while the reel and the cutting blade are stopped, the clogging removal operation can be performed more safely.

  According to the combine described in claim 2, it is possible to prevent the auger drive device from continuing to be driven in an overload state.

  According to the combine according to claim 3, since the auger drive device can be driven with a large load when the platform auger is rotating in the reverse direction, the clogging removal capability can be improved. Is possible.

  According to the combine described in claim 4, it is possible to prevent the conveyor drive device from continuing to be driven in an overload state.

  According to the combine according to claim 5, since the conveyor drive device can be driven in a state where a large load is applied during the reverse rotation of the feeder house conveyor, the clogging removal capability is improved. Is possible.

  According to the combine described in claim 6, since the clogging removal work can be performed by the clogging removal operation tool while the engine is stopped, the energy saving effect can be enhanced.

The left view of a combine. The top view of a combine. The figure which shows a threshing part and a selection part. The figure which shows the structure of an electric motor and its peripheral device. The block diagram which showed the control structure of the combine. The flowchart at the time of a mowing work. The flowchart at the time of clogging removal work.

  Below, the normal type combine 1 is demonstrated.

  As shown in FIGS. 1 and 2, the combine 1 includes a traveling unit 10, a reaping unit 20, a threshing unit 30, a sorting unit 40, a grain storage unit 50, a waste processing unit 60, and a control unit. 70, an engine 80, and a generator 81.

  The traveling unit 10 is provided in the lower part of the body 2. The traveling unit 10 includes a crawler type traveling device 11 having a pair of left and right crawlers, and is configured such that the body 2 can travel in the forward or backward direction by the crawler type traveling device 11.

The cutting unit 20 is provided in front of the machine body 2 and is supported so as to be movable up and down with respect to the machine body 2. The cutting unit 20 includes a reel 21, a cutting blade 22, a platform auger (PF auger) 23, and a feeder house conveyor (FH conveyor) 24. The reel 21, the cutting blade 22, and the PF auger 23 are supported by a cutting frame 25. A feeder house 26 is provided between the cutting frame 25 and the machine body 2, and an FH conveyor 24 is provided in the feeder house 26.
Further, the cutting unit 20 is provided with electric motors 91 a, 92 a, 93 a, and 94 a for driving the reel 21, the cutting blade 22, the PF auger 23, and the FH conveyor 24.

  The reaping unit 20 scrapes the cereal with the reel 21, cuts the stock of the culm after squeezing with the cutting blade 22, and gathers the harvested cereal with the PF auger 23 before feeding it to the FH conveyor 24. It is configured so that it can be delivered to the threshing unit 30 by the FH conveyor 24.

The threshing unit 30 is provided on the upper left side of the machine body 2 and is disposed behind the reaping unit 20.
As shown in FIG. 3, the threshing unit 30 includes a handling drum 31 and a concave 32. The threshing unit 30 is configured to thresh while sending the cereals conveyed from the cutting unit 20 to the rear by the handling barrel 31 and the concave 32, and to leak the threshing.

The sorting unit 40 is provided in the lower left part of the machine body 2 and is disposed below the threshing unit 30.
As shown in FIG. 3, the sorting unit 40 includes a swing sorting device 41, a wind sorting device 42, a grain transport device 43, and a second reduction device 44. The sorting unit 40 swings and sorts the cereals falling from the threshing unit 30 by the swing sorting device 41 into grains and swarf, and further uses the wind sorting device 42 to further remove the grains and sawdust. And the like, and the grain transport device 43 is configured so that the grain after sorting can be transported to the grain storage unit 50 side.

  The swing sorting device 41 includes a first chaff sheave 41a, a second chaff sheave 41b, and a sieving member 41c. The swing sorting device 41 is disposed below the handling cylinder 31. The swing sorting device 41 is provided with a swing mechanism 41d. The swing mechanism 41d swings the first chaff sheave 41a, the second chaff sheave 41b, and the sieving member 41c with respect to the machine body 2.

  The first chaff sheave 41a and the second chaff sheave 41b have a plurality of chaff fins that are horizontally mounted at equal intervals in the left-right direction. Each of the chaff fins is configured such that the angle thereof can be changed, and each chaff fin is juxtaposed in the front-rear direction in a state where each of the chaff fins is slightly inclined to a front low and a high rear. The sieving member 41c is composed of a comb-like member, and is provided at the rear end portion of the first chaff sheave 41a with the tooth portion facing rearward, and is positioned above the front portion of the second chaff sheave 41b.

  The swing sorter 41 swings the first chaff sheave 41a, the second chaff sheave 41b, and the sieving member 41c to roughly sort the grain from the cereal falling from the threshing section 30, and after the coarse sorting Things can be made to leak to the wind sorting device 42. The amount of leakage at this time is adjusted by changing the angles of the plurality of chaff fins in the first chaff sheave 41a and the second chaff sheave 41b.

The wind sorting device 42 includes a tang 42a, a first conveyor 42b, and a second conveyor 42c. The tang 42a is rotatably supported and is disposed near the front end on the left side of the body 2. The first conveyer 42b and the second conveyer 42c are respectively disposed behind the tang 42a, and are juxtaposed in the front-rear direction.
The wind sorting device 42 is provided with a red pepper electric motor 95a for rotationally driving the red pepper 42a.

  The wind sorting device 42 drives the Kara 42a to rotate, thereby causing the sorting wind to be sent to the rear, hitting the sorting wind against the grains and swarf falling from the oscillating sorting device 41, and sorting these specific gravity. To do. Of these, the one with the higher specific gravity falls to the first conveyor 42b without being affected by the sorting wind, whereas the one with the lower specific gravity is carried rearward by the sorting wind, and the second conveyor 42c. And lighter dust etc. are discharged to the rear.

  In addition, the wind sorting device 42 drives the first conveyor 42b, so that what has fallen on the first conveyor 42b is sent to the right side as the first thing and delivered to the grain conveying device 43. The grain conveying device 43 conveys this first thing to the grain storage unit 50 side.

  Further, the wind sorting device 42 drives the second conveyor 42c, so that what has fallen on the second conveyor 42c is sent to the right side as a second thing and is delivered to the second transport device 44a of the second reduction device 44. .

  The second reduction device 44 includes a second transport device 44a and a second processing device 44b. The second transport device 44a extends in the front-rear direction on the right side of the swing sorting device 41 and the wind sorting device 42, and is disposed in a state of being inclined to the front height and the rear. The second processing device 44b is disposed so as to be located above the front end portion of the swing sorting device 41, and is connected to the second transport device 44a.

  The second reduction device 44 sends the second product received by the second transport device 44a to the second processing device 44b, and the second processing device 44b performs processing such as removing branching of the second thing. After that, it can be dropped and returned to the swing sorting device 41. In this way, the second product that has passed through the swing sorting device 41 and the wind sorting device 42 is repeatedly sorted.

  As shown in FIGS. 1 and 2, the grain storage unit 50 is provided in the front-rear central portion on the right side of the machine body 2 and is disposed on the right side of the threshing unit 30 and the sorting unit 40. The grain storage unit 50 includes a grain tank 51 and a grain discharging device 52. The grain storage part 50 stores the grain conveyed from the selection part 40 in the grain tank 51, conveys the stored grain in an arbitrary direction by the grain discharging device 52, and then discharges it to the outside. Configured to be able to.

  The waste disposal unit 60 is provided on the left rear upper side of the machine body 2 and is disposed behind the threshing unit 30 and the sorting unit 40. The waste processing unit 60 is configured to discharge the threshed culm from the threshing unit 30 to the outside as waste, and to discharge the swarf and dust from the sorting unit 40 to the outside. .

  The control unit 70 is provided so as to protrude forward from the right front end of the airframe 2, and is disposed in front of the grain storage unit 50. The control unit 70 includes a reel operating tool 71 for operating the reel 21, a cutting blade operating tool 72 for operating the cutting blade 22, an auger operating tool 73 for operating the PF auger 23, , A conveyor operating tool 74 for operating the FH conveyor 24 and a carp operation tool 75 for operating the carp 42a are provided. Moreover, the clogging removal operation tool 78 is provided in the control part 70 (refer FIG. 5). Detailed description of the clogging removal operation tool 78 will be described later. The control unit 70 is provided with various operating tools including a steering handle 76 and a shift lever, a control seat, and a cabin 77.

As shown in FIG. 2, the engine 80 is provided at the right front end of the airframe 2 and is disposed below the control unit 70. A generator 81 is provided on the left side of the engine 80. The generator 81 is connected to the engine 80 and is driven by the rotation of the engine 80 being transmitted.
A battery 82 is provided at the right rear end of the machine body 2. The battery 82 is electrically connected to the generator 81 and can store the electric power generated by the generator 81.

Below, the power transmission of the combine 1 is demonstrated.
The combine 1 supplies the power of the engine 80 to the traveling unit 10, the threshing unit 30, the sorting unit 40 (excluding the red pepper 42a), the grain storage unit 50, and the waste processing unit 60 via a power transmission system including a transmission. These parts are driven by the power of the engine 80.
Moreover, the combine 1 is the electric motor (three-phase alternating current motor) 91a and 92a regarding each part (the reel 21, the cutting blade 22, the PF auger 23, and the FH conveyor 24) of the cutting part 20, and the Karatsu 42a of the selection part 40. • Driven by the power of 93a, 94a, and 95a (see FIG. 5).

  Next, the configuration of the electric motors 91a, 92a, 93a, 94a, 95a and peripheral devices will be described.

  As shown in FIG. 4, during normal travel (when the engine 80 is rotating), the generator 81 is driven by the engine 80 to generate AC power. This AC power is converted into DC power by the inverter 83. The DC power is converted into AC power by inverters 192, 193, and 194 and supplied to the electric motors 92a, 93a, and 94a, respectively. Further, the DC power is adjusted in voltage by the DC-DC converter 84, converted into AC power by the inverters 191 and 195, and supplied to the electric motors 91a and 95a, respectively. Therefore, when the power consumption is less than the generated power, the reel 21, the cutting blade 22, the PF auger 23, the FH conveyor 24, and the red pepper 42 a are driven by the power from the generator 81, and surplus power is stored in the battery 82. Further, when the power consumption is greater than the generated power, the battery 82 also supplies power.

  When the engine 80 is stopped, the electric power stored in the battery 82 is supplied to the electric motors 91a, 92a, 93a, 94a, and 95a via the inverters 191, 192, 193, 194, and 195, respectively. Therefore, when the engine 80 is stopped, the reel 21, the cutting blade 22, the PF auger 23, the FH conveyor 24, and the red pepper 42 a are driven by the electric power from the battery 82.

As shown in FIG. 5, operating tools 71, 72, 73, 74, 75, and 78 and inverters 191, 192, 193, 194, and 195 are connected to the control device 100.
The control device 100 receives the signals from the operation tools 71, 72, 73, 74, 75, and 78, thereby controlling the inverters 191, 192, 193, 194, and 195 to control the electric motors 91a, 92a, 93a, and 94a. -Operate the rotation of 95a. Thereby, the control apparatus 100 controls operation | movement of the reel 21, the cutting blade 22, the PF auger 23, the FH conveyor 24, and the Kara 42a.

Conventionally, the power of the engine has been configured to be transmitted to each part of the cutting unit and the tang through a plurality of transmission belts and pulleys.
On the other hand, the combine 1 according to the present embodiment includes the electric motors 91 a, 92 a, and the electric motors 91 a, 92 a, and the parts of the cutting unit 20 (the reel 21, the cutting blade 22, the PF auger 23, and the FH conveyor 24) and the Kara 42 a of the sorting unit 40. 93a, 94a and 95a are connected to each other, and each part of the cutting unit 20 and the carp 42a are individually driven by the power of the electric motors 91a, 92a, 93a, 94a and 95a. Thereby, parts for connecting to the engine, such as a conventionally used transmission belt and transmission pulley, can be deleted, and a power transmission system to the cutting unit 20 and the tang 42a can be simplified. Further, regarding each part of the cutting unit 20 (reel 21, cutting blade 22, PF auger 23, and FH conveyor 24) and the tang 42a of the sorting unit 40, the power transmission system is different from the power transmission system with the engine 80. Therefore, regardless of the engine 80, the output shafts of the electric motors 91a, 92a, 93a, 94a, and 95a can be rotated to facilitate maintenance and adjustment.

  In addition, the combine 1 has a power source (electric motors 91a, 92a, 93a, 94a, and 95a) for the parts that should be adjusted in rotation speed according to the work situation (each part of the cutting unit 20 and the tang 42a). By providing this, each rotational speed is configured to be adjustable. And about the site | part (threshing part 30 and the generator 81) which require a fixed rotational speed, the engine 80 is used as a power source. Thus, the combine 1 is improving workability | operativity by providing multiple types of power sources in consideration of the characteristic of each part.

  As shown in FIG. 2, the combine 1 is provided with electric motors 91 a, 92 a, 93 a, and 94 a in the cutting unit 20, and a battery 82 at the rear end of the machine body 2 (behind the grain storage unit 50). This is because the center of gravity of the combine 1 is biased forward by providing the electric motors 91 a, 92 a, 93 a, and 94 a in the cutting unit 20, but the weight balance before and after the combine 1 is provided by providing the battery 82 at the rear end of the machine body 2. This is to suppress the deviation of the center of gravity. Thereby, the posture of the combine 1 can be stabilized.

  Hereinafter, the clogging removal operation tool 78 will be described.

  The clogging removal operation tool 78 is an operation tool for removing clogging of the cutting unit 20 and is disposed in the control unit 9. The clogging removal operation tool 78 is a single operation tool, and includes, for example, a switch and a lever.

As shown in FIG. 5, the clogging removal operation tool 78 is connected to the control device 100. When the clogging removal operation tool 78 is operated, a signal is transmitted to the control device 100.
The control device 100 receives the signal from the clogging removal operation tool 78 and rotates the PF auger 23 and the FH conveyor 24 in the reverse direction with the reel 21 and the cutting blade 22 stopped. Thereby, the clogging of the cutting part 20 can be removed.

Note that the reverse rotation of the PF auger 23 (FH conveyor 24) means that the PF auger 23 (FH conveyor 24) is rotated in a direction opposite to the rotation direction during the cutting operation.
In addition, the normal rotation of the PF auger 23 (FH conveyor 24) means that the PF auger 23 (FH conveyor 24) is rotated in the same direction as the rotation direction during the mowing operation.

By providing the clogging removal operation tool 78, it is not necessary for the operator to look into the cutting unit 20 to find a clogged portion and to manually remove the clogging, and the clogging removal work can be performed smoothly. is there.
Further, when the operator operates the clogging removal operation tool 78, each part (the reel 21, the cutting blade 22, the PF auger 23, and the FH conveyor 24) of the cutting unit 20 performs the predetermined movement described above, and the clogging removal work is performed. Be started. Therefore, it is possible to smoothly perform the clogging removing operation of the cutting unit 20.
Further, since the reel 21 and the cutting blade 22 are stopped when the clogging operation is performed by the clogging removal operation tool 78, it is possible to perform the clogging removal operation more safely.

  As shown in FIG. 5, the auger load detecting means 113 for detecting the load (torque) of the auger electric motor 93 a is connected to the control device 100. The auger load detection means 113 detects the torque of the auger electric motor 93a based on the value of the current flowing through the auger electric motor 93a. The control device 100 can receive information on the torque of the auger electric motor 93a from the auger load detection means 113.

  As shown in FIG. 5, the control device 100 is connected to a conveyor load detecting means 114 for detecting a load (torque) of the electric motor 94a for conveyor. The conveyor load detecting means 114 detects the torque of the conveyor electric motor 94a based on the value of the current flowing through the conveyor electric motor 94a. The control device 100 can receive information on the torque of the electric motor 94a for conveyor from the conveyor load detecting means 114.

As shown in FIG. 6, during the mowing operation, the control device 100 detects that the detected torque X of the auger load detecting means 113 is smaller than the predetermined first auger load upper limit value X1 (S101, No) and detects the conveyor load. When the detected torque Y of the means 114 is smaller than the predetermined first conveyor load upper limit value Y1 (S102, No), the electric motors 91a, 92a, 93a, and 94a are continuously rotated, the reel 21, the cutting blade 22, and the PF auger 23 and the FH conveyor 24 continue to be driven. Thereby, the mowing operation is continued.
On the other hand, during the mowing operation, the control device 100 determines whether the detected torque X of the auger load detecting means 113 is equal to or higher than a predetermined first auger load upper limit value X1 (S101, Yes) or / and conveyor load detection. When the detected torque Y of the means 114 becomes equal to or higher than the predetermined first conveyor load upper limit value Y1 (S102, Yes), the electric motors 91a, 92a, 93a, 94a are stopped, and the reel 21, cutting blade 22, PF auger are stopped. 23 and the FH conveyor 24 are stopped (S103). Thereby, the cutting operation is interrupted.

As shown in FIG. 7, during the clogging operation (when the clogging removal operation tool 78 is operated), the control device 100 determines that the detected torque X of the auger load detecting means 113 is greater than a predetermined second auger load upper limit value X2. If it is small (S201, No) and the detected torque Y of the conveyor load detecting means 114 is smaller than the predetermined second conveyor load upper limit Y2 (S202, No), the electric motors 93a and 94a are kept rotating, and PF The auger 23 and the FH conveyor 24 are continuously driven (reversely rotated). Thereby, the clogging removal operation is continued.
On the other hand, during the clogging operation, the control device 100 determines whether the detected torque X of the auger load detecting means 113 is equal to or greater than a predetermined second auger load upper limit value X2 (S201, Yes) or / and the conveyor load. When the detected torque Y of the detecting means 114 becomes equal to or greater than the predetermined second conveyor load upper limit value Y2 (S202, Yes), the electric motors 93a and 94a are stopped and the PF auger 23 and the FH conveyor 24 are stopped ( S203). Thereby, the clogging work is interrupted.

The first auger load upper limit value X1 and the second auger load upper limit value X2 described above are values that are appropriately determined by experiments or the like.
The second auger load upper limit value X2 is set larger than the first auger load upper limit value X1 (X2> X1).

Thus, the combine 1 is provided with the upper limit value X1 (X2) of the torque of the auger electric motor 93a, so that the torque of the auger electric motor 93a is higher than the upper limit value X1 (at the time of clogging work). When the load of the auger electric motor 93a increases, the auger electric motor 93a is stopped. Thereby, it is possible to prevent the auger electric motor 93a from being damaged in an attempt to continue to be driven in an overload state.
Further, by setting the second auger load upper limit value X2 to be larger than the first auger load upper limit value X1, the load of the auger electric motor 93a is larger during reverse rotation than during normal rotation of the PF auger 23. Since it can be driven in the state where it is applied, it is possible to improve the clogging removal capability.

Moreover, the above-described first conveyor load upper limit value Y1 and second conveyor load upper limit value Y2 are values appropriately determined by experiments or the like.
The second conveyor load upper limit value Y2 is set larger than the first conveyor load upper limit value Y1.

As described above, the combine 1 is provided with the upper limit value Y1 (Y2) of the torque of the electric motor 94a for the conveyor, and the torque of the electric motor 94a for the conveyor is the upper limit value Y1 (at the time of the clogging operation). When the load of the electric motor 94a for the conveyor is increased to Y2), the electric motor 94a for the conveyor is stopped. Thereby, it is possible to prevent the conveyor electric motor 94a from being damaged in an attempt to continue to be driven in an overload state.
Further, by setting the second conveyor load upper limit value Y2 to be larger than the first conveyor load upper limit value Y1, the load of the conveyor electric motor 94a is larger when the FH conveyor 24 is rotating in the reverse direction than when the FH conveyor 24 is rotating in the reverse direction. Since it can be driven in the state where it is applied, it is possible to improve the clogging removal capability.

As described above, the auger electric motor 93 a and the conveyor electric motor 94 a are connected to the battery 82. When the engine 80 is stopped, the PF auger 23 and the FH conveyor 24 can be driven by the electric power from the battery 82.
As a result, the operator can perform the clogging removal operation by operating the clogging removal operation tool 78 with the engine 80 stopped. Thereby, it is possible to enhance the energy saving effect.

  Note that the engine 80 may be forcibly stopped when the clogging removal operation tool 78 is operated. Thereby, it is possible to prevent other devices (such as the traveling unit 10 and the lifting device) from operating unintentionally due to an erroneous operation when the operator is performing the clogging removal operation.

DESCRIPTION OF SYMBOLS 1 Combine 21 Reel 22 Cutting blade 23 PF auger 24 FH conveyor 78 Clogging removal operation tool 91a * 92a * 93a * 94a Electric motor 100 Control apparatus

Claims (6)

A reel that stirs cereals,
A reel driving device for driving the reel;
A cutting blade that cuts the cereals,
A cutting blade driving device for driving the cutting blade;
A platform auger that captures the cereals harvested by the cutting blade;
An auger drive for driving the platform auger;
A feeder house conveyor that conveys the cereal grains taken in by the platform auger to the threshing unit;
A conveyor driving device for driving the feeder house conveyor;
A controller for controlling the operations of the reel, the cutting blade, the platform auger, and the feeder house conveyor by operating the reel driving device, the cutting blade driving device, the auger driving device, and the conveyor driving device;
A clogging removal operation tool connected to the control device;
With
The control device receives the signal from the clogging removal operation tool, and reversely rotates the platform auger and the feeder house conveyor in a state where the reel and the cutting blade are stopped, respectively. ,
Combine. An auger load detecting means for detecting a load of the auger drive device;
The control device is configured to stop the platform auger when the detected value of the auger load detecting means increases to a predetermined first auger load upper limit value when the platform auger is normally rotated. To
The combine according to claim 1. The control device is configured to stop the platform auger when the detected value of the auger load detecting means increases to a predetermined second auger load upper limit value when the platform auger is reversely rotated.
The second auger load upper limit value is set larger than the first auger load upper limit value,
The combine according to claim 2. Conveyor load detection means for detecting the load of the conveyor drive device,
The controller is configured to stop the feeder house conveyor when the feeder house conveyor is rotating forward and the detected value of the conveyor load detecting means increases to a predetermined first conveyor load upper limit value. Features
The combine according to claim 1. The control device is configured to stop the feeder house conveyor when the detection value of the conveyor load detecting means increases to a predetermined second conveyor load upper limit value when the feeder house conveyor is rotated in reverse.
The second conveyor load upper limit value is set larger than the first conveyor load upper limit value,
The combine according to claim 4. Equipped with a battery
The auger drive device and the conveyor drive device are driven by electric power from the battery when the engine is stopped.
The combine as described in any one of Claims 1-5.

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