Combine harvester

Abstract

To provide a combine harvester capable of easily and appropriately adjusting a rotational position and a vertical height of an unloading auger in order to solve the problem such that it is not easy for an operation device to appropriately adjust a rotational position and a vertical height of an unloading auger, in a combine harvester which is provided with sensors for detecting an amount of rotation and an amount of vertical movement of the unloading auger for unloading grains stored in a grain tank to the exterior and can grasp an operative position of the unloading auger.SOLUTION: In a combine harvester including a reaping device, a thresher, a grain tank and an unloading auger in a machine body provided with a travel device, a rotation dial 85 for performing a rotation operation of the unloading auger and a vertical movement dial for performing a vertical moving operation are provided, a mark 85b is provided on the rotation dial 85 and the vertical movement dial, and the unloading auger is rotated and vertically according to a position in which the mark 85b is directed, by operations of the rotation dial 85 and the vertical movement dial.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a combine harvester equipped with a grain tank for storing harvested grain. [Background technology]

[0002] There is a combine harvester that is provided with sensors that detect the amount of rotation and the amount of vertical movement of a discharge auger, which discharges grain stored in a grain tank to the outside, and that can grasp the operating position of the discharge auger (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-223160 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, it has not been easy to appropriately adjust the rotational position or vertical height of the discharge auger using an operating device such as a switch or dial.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a combine harvester in which the rotational position and vertical height of the discharge auger can be easily and appropriately adjusted. [Means for solving the problem]

[0006] The invention described in claim 1 is a combine harvester equipped with a harvesting device 5, a threshing device 10, a grain tank 8 and a discharge auger 81 on a body provided with a traveling device 4, which is provided with a rotary dial 85 for rotating the discharge auger 81 and an up-down movement dial 87 for moving it up and down, and marks 85b, 87b are provided on the rotary dial 85 and the up-down movement dial 87, so that the discharge auger 81 is rotated and moved up and down by operating the rotary dial 85 and the up-down movement dial 87 in accordance with the position of the marks 85b, 87b.

[0007] According to the invention described in claim 1, a rotation dial 85 for rotating the discharge auger 81 and a vertical movement dial 87 for moving it up and down are provided, and marks 85b, 87b are provided on the rotation dial 85 and the vertical movement dial 87. By operating the rotation dial 85 and the vertical movement dial 87, the discharge auger 81 rotates and moves up and down according to the positions of the marks 85b, 87b. Therefore, the rotation position and vertical height of the discharge auger 81 can be easily adjusted.

[0008] The invention described in claim 2 is a combine described in claim 1 in which the rotating dial 85 and the up-down moving dial 87 are arranged superimposed on the combine pictograms 85a, 87a, and the arrangement position corresponds to the mounting position of the discharge auger 81 on the body of the machine.

[0009] According to the invention described in claim 2, the rotating dial 85 and the up-down movement dial 87 are arranged superimposed on the combine pictograms 85a, 87a, and their arrangement positions correspond to the mounting position of the discharge auger 81 on the machine body. This allows the user to intuitively imagine the positional relationship between the discharge auger 81 and the machine body and operate it, and further makes it easy to adjust the position.

[0010] The invention described in claim 3 is a combine harvester as described in claim 1 or 2, which is provided with a rotary dial operation position detector and a vertical movement dial operation position detector for detecting the operating positions of the rotary dial 85 and the vertical movement dial 87, and a rotary dial rotation actuator and a vertical movement dial rotation actuator for operating the rotary dial 85 and the vertical movement dial 87, and when one of the rotary dial 85 or the vertical movement dial 87 is operated to rotate or move up and down the discharge auger 81, operating the other interrupts and stops the rotary movement or vertical movement of the discharge auger 81, and operates the discharge auger 81 by giving priority to the command of the other operated later, and sets the rotary dial 85 or the vertical movement dial 87 operated earlier to an operating position corresponding to the position where the rotary movement or vertical movement of the discharge auger 81 is interrupted and stopped by the rotary dial rotation actuator or the vertical movement dial rotation actuator.

[0011] According to the invention described in claim 3, the previously operated rotating dial 85 or vertical movement dial 87 is brought to an operating position corresponding to the position where the discharge auger 81 is stopped and its rotating or vertical movement is interrupted by the rotating dial rotating actuator or the vertical movement dial rotating actuator, so that there is no need to correct the position when operating the next rotating dial 85 or vertical movement dial 87, improving work efficiency.

[0012] The invention described in claim 4 is a combine harvester as described in claim 1 or claim 2, in which a figure and a center point of the figure are provided at the bottom of the recovered grain tank at a position visible in a planar view from the grain receiving port, a camera is provided at the grain discharge port 81c of the discharge auger 81 to take pictures downward, and a monitor 90 is provided which displays the image captured by the camera and also displays the same figure and its center point as the figure provided at the bottom of the tank, and when an automatic position adjustment switch 89 is operated, the discharge auger 81 is rotated so that the center point displayed on the monitor 90 coincides with the center point of the image captured by the camera, and the discharge auger 81 is moved up and down so that the figure displayed on the monitor 90 coincides with the figure in the image captured by the camera, thereby controlling the grain discharge port 81c of the discharge auger 81 to be in an appropriate position relative to the grain receiving port of the recovered grain tank.

[0013] According to the invention described in claim 4, the grain discharge port 81c of the discharge auger 81 is controlled so as to be in an appropriate position relative to the grain receiving port of the recovered grain tank, so that grains can be reliably collected and labor and time can be reduced.

[0014] The invention described in claim 5 is a combine harvester as described in claim 4, in which a position information receiving device such as a GNSS antenna is provided on the body of the machine, a rotational position detector is provided to detect the rotational position of the discharge auger 81, a vertical movement position detector is provided to detect the vertical movement position of the discharge auger 81, and an extension position detector is provided to detect the extension position of the discharge auger 81, and the control device calculates and stores the position of the grain discharge outlet 81c from the position information of the machine, information from the rotational position detector, information from the vertical movement position detector, and information from the extension position detector when the center point and figure displayed on the monitor 90 match the center point and figure of the image captured by the camera, and when the camera cannot capture the figure and center point of the bottom of the collected grain tank, when the automatic position adjustment switch 89 is operated, the discharge auger 81 is moved to match the stored position of the grain discharge outlet 81c.

[0015] According to the invention described in claim 5, even when the camera cannot capture the image of the shape and center point of the bottom of the recovered grain tank, the grain discharge port 81c of the discharge auger 81 can be moved to an appropriate discharge position.

[0016] The invention described in claim 6 is a combine harvester as described in claim 1 or claim 2, which is equipped with a left-right tilting mechanism and a front-back tilting mechanism for the body, and is provided with an up-down movement position detector for detecting the up-down movement position of the discharge auger 81, and when the up-down movement dial 87 is operated downward when the discharge auger 81 is in the lowest position, the left-right tilting mechanism and the front-back tilting mechanism are activated to tilt the body forward / backward and left-right, thereby lowering the grain discharge outlet 81c of the discharge auger 81.

[0017] According to the invention described in claim 6, by operating the left / right tilting mechanism and the front / rear tilting mechanism of the vehicle body to tilt the vehicle body forward / backward and left / right, the grain discharge outlet 81c of the discharge auger 81 can be set to a low position, thereby preventing contact with electric wires, etc. during grain discharge work. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is a side view of a combine harvester according to an embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 2 is a plan view for explaining the operation of the combine harvester. [Diagram 5] FIG. [Figure 6] FIG. 2 is a side view for explaining the operation of the combine harvester. [Figure 7] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, a combine harvester as one embodiment of a harvesting machine of the present invention will be described in detail with reference to the drawings.

[0020] 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.

[0021] As shown in Figures 1 and 2, the combine harvester 1 includes a body frame 2, an engine 3 as a driving force source, left and right traveling devices 4, 4, a harvesting device 5, a threshing device 10 equipped with a feed chain drive mechanism 9, and a grain tank 8.

[0022] The vehicle frame 2 forms a frame-shaped structural member of the vehicle body of the combine harvester 1.

[0023] The engine 3 is mounted on the aircraft frame 2 at the front side in the longitudinal direction, below a control section 22 which has an operator's seat 21 mounted thereon.

[0024] The left and right traveling devices 4,4 are provided vertically below the machine body frame 2. The left and right traveling devices 4,4 move the entire combine harvester 1 by driving force from the engine 3. The left and right traveling devices 4,4 each have left and right crawlers 41,41. The left and right crawlers 41,41 are provided as a pair on the left and right sides with a gap in the vehicle width direction vertically below the machine body frame 2. The left and right traveling devices 4,4 move the entire combine harvester 1 forward in the fore-and-aft direction by driving the left and right crawlers 41,41 by driving force transmitted from the engine 3.

[0025] The harvesting device 5 is provided at the front of the body frame 2 and is equipped with a dividing body 51 that divides the culms growing in the field, a raising device 52 that raises the culms, a cutting blade 53 that cuts the lower part of the culms, and a transport device 56 that transports the harvested culms.It is driven by the driving force from the engine 3 to harvest the culms and transport the harvested culms to the threshing device 10.

[0026] The conveying device 56 is equipped with a base of the stalk conveying device 56a and a tip of the stalk conveying device 56b, and conveys the stalks from the harvesting device 5 to the threshing device 10, and then hands them over to the feed chain drive mechanism 9.

[0027] The threshing device 10 is provided behind the reaping device 5 and to the side of the grain tank 8 (on the left side of the machine frame 2), and has an upper threshing section and a lower sorting section.

[0028] The threshing and sorting sections are located above the machine frame 2 and behind the conveying device 56 of the reaping device 5.

[0029] The threshing unit threshes the culms transported by the driving force from the engine 3. That is, the threshing unit is a device that separates grains from the culms harvested by the harvesting device 5.

[0030] The threshing device 10 is covered on the left outer side by front and rear belt covers 11, 12, a chain cover 13 and a cutter cover 14.

[0031] The sorting section is a device that separates impurities such as straw from the culms threshed by the threshing section and the grains using the driving force from the engine 3.

[0032] The grain tank 8 is provided to the side of the threshing device 10 and stores the grains collected by the sorting section of the threshing device 10.

[0033] A discharge auger 81 is connected to the grain tank 8. The discharge auger 81 transports grains in the grain tank 8 by the driving force from the engine 3 and discharges the grains to the outside of the grain tank 8.

[0034] The feed chain drive mechanism 9 rotates and drives the feed chain 96 to take over the stalks harvested by the harvesting device 5 and transport them by the transport device 56 of the harvesting device 5 to the threshing section of the threshing device 10.

[0035] The feed chain drive mechanism 9 is arranged on the side opposite to the side on which the grain tank 8 of the threshing device 10 is arranged, i.e., on the left side.

[0036] A radiator is provided on the outer right side of the engine 3, which is located below the steering section 22 in which the operator's seat 21 is located. To facilitate maintenance of the radiator, a radiator cover 70 is provided on the outer right side of the radiator, which is pivoted at either the front or rear so as to be able to be opened and closed freely.

[0037] Next, a detailed configuration will be described for recovering grains in the grain tank 8 into a recovery grain tank or the like mounted on a truck waiting on an external road by rotating, moving up and down, and extending and retracting the discharge auger 81.

[0038] That is, the discharge auger 81 is composed of a cylindrical vertical discharge device 81a equipped with a discharge drive spiral provided at the rear of the grain tank 8, and a cylindrical horizontal discharge device 81b equipped with an extendable discharge drive spiral whose base is connected to the upper end of the vertical discharge device 81a, and a grain discharge outlet 81c is provided at the tip of the horizontal discharge device 81b.

[0039] A bottom discharge device with a discharge drive spiral built in is provided at the bottom of the grain tank 8, and the vertical discharge device 81a has a base that is rotatably connected to the end of the bottom discharge device that protrudes rearward from the grain tank 8, with the tip facing up and down in an L-shape, and is rotated by a rotation drive mechanism.

[0040] Therefore, the grain discharge outlet 81c provided at the tip of the horizontal discharge device 81b, the base of which is connected to the upper end of the vertical discharge device 81a of the discharge auger 81, can freely rotate around the entire circumference of the body by rotating the vertical discharge device 81a using the rotary drive mechanism.

[0041] In addition, a potentiometer for detecting a rotational position is provided as a rotational position detector for detecting the rotational position of the vertical discharge device 81a. The control device recognizes the rotational position of the vertical discharge device 81a based on information from the potentiometer for detecting a rotational position, and recognizes at what position around the entire circumference of the machine body the grain discharge outlet 81c is located.

[0042] The horizontal discharge device 81b has a base rotatably connected to an L-shaped upper end of the vertical discharge device 81a with the tip facing horizontally, and is vertically actuated by a vertical actuation actuator.

[0043] Therefore, the grain discharge port 81c provided at the tip of the lateral discharge device 81b of the discharge auger 81 can be freely moved up and down by operating the lateral discharge device 81b up and down using the vertical movement actuator.

[0044] In addition, a potentiometer for detecting vertical movement is provided as a vertical movement position detector for detecting the vertical movement position of the lateral discharge device 81b, and the control device recognizes the vertical movement position of the lateral discharge device 81b based on information from the potentiometer for detecting vertical movement, and thereby recognizes the vertical movement position of the grain discharge outlet 81c.

[0045] Furthermore, the lateral discharge device 81b is divided into a tip lateral discharge device 81b2 that can be freely advanced and retracted relative to a base lateral discharge device 81b1 whose base is connected to the upper end of the vertical discharge device 81a, and the length can be freely adjusted by advancing and retracting the tip lateral discharge device 81b2 relative to the base lateral discharge device 81b1 using an extension actuator.

[0046] Therefore, the grain discharge port 81c provided at the tip of the discharge auger 81 can freely adjust the protruding distance from the machine body by extending and retracting the lateral discharge device 81b with the telescopic actuator.

[0047] In addition, a potentiometer for detecting the extension / retraction position is provided as an extension / retraction position detector for detecting the extension / retraction position of the lateral discharge device 81b. The control device recognizes the extension / retraction position of the lateral discharge device 81b based on information from the potentiometer for detecting the extension / retraction position, and thereby recognizes the protruding position of the grain discharge port 81c from the body of the machine.

[0048] The operation panel 22a of the control unit 22 is provided with a rotation dial 85 that operates the rotation drive mechanism to rotate the grain discharge outlet 81c at the tip of the discharge auger 81 around the body of the machine, an up-down movement dial 87 that operates the up-down movement actuator to move the grain discharge outlet 81c at the tip of the discharge auger 81 up and down, and an extension switch 88 that operates the extension actuator to adjust the distance that the grain discharge outlet 81c at the tip of the discharge auger 81 protrudes from the body of the machine.

[0049] As shown in Figure 3, the rotary dial 85 is located at the rear right end of the combine pictogram 85a in a planar view on the operation panel 22a, and is positioned in the same position as the vertical discharge device 81a, which is the rotation center of the discharge auger 81 of the combine 1.

[0050] The rotating dial 85 is provided with a linear mark 85b extending from the center to the outer periphery on its upper surface, and is provided with a rotating dial operation position detection potentiometer as a rotating dial operation position detector that detects the rotating position of the rotating dial 85, and a rotating dial rotation actuator that rotates the rotating dial 85 in response to a command from a control device.

[0051] The control device controls the operation of the rotary drive mechanism so that the discharge auger 81 (lateral discharge device 81b) rotates and stops in the direction in which the mark 85b of the rotary dial 85 faces the pictogram 85a of the combine harvester.

[0052] In other words, when the operator operates the rotary dial 85 so that the mark 85b faces toward the outer right T of the combine pictogram 85a as shown in Figure 3, the control device recognizes the operating position T using a potentiometer for detecting the rotary dial operating position, and controls the operation of the rotary drive mechanism to rotate the discharge auger 81 (lateral discharge device 81b) to a position facing the outer right T of the combine 1 as shown in Figure 4 and stop it (naturally, the grain discharge outlet 81c also stops at the outer right T position of the combine 1).

[0053] Similarly, when the operator operates the rotary dial 85 so that the mark 85b faces one of the other operating positions G, A, B, L, R, O, etc. of the combine pictogram 85a, the control device recognizes the operating position G, A, B, L, R, O, etc. using the rotary dial operating position detection potentiometer, and operates and controls the rotary drive mechanism to rotate the discharge auger 81 (lateral discharge device 81b) to a position facing the corresponding G, A, B, L, R, O, etc. of the combine 1 shown in Figure 4, and stops it.

[0054] Therefore, since the discharge auger 81 (lateral discharge device 81b) rotates and stops at the position where the mark 85b of the rotating dial 85 faces, the rotational position of the discharge auger 81 can be easily adjusted by the rotating dial 85.

[0055] Furthermore, since the discharge auger 81 (lateral discharge device 81b) rotates and stops in the direction in which the mark 85b of the rotating dial 85 faces the combine pictogram 85a, the positional relationship between the discharge auger 81 and the combine 1 can be intuitively (imagined) and the rotation position can be easily adjusted.

[0056] As shown in Figure 5, the up-down movement dial 87 is located above the combine pictogram 87a in side view on the operation panel 22a, and is located in the same position as the upper end of the vertical discharge device 81a, which is the rotation center for the up-down movement of the lateral discharge device 81b of the discharge auger 81 of the combine 1.

[0057] The vertical movement dial 87 is provided with a linear mark 87b extending from the center to the outer periphery on its upper surface, and is provided with a vertical movement dial operation position detection potentiometer as a vertical movement dial operation position detector for detecting the rotational operation position of the vertical movement dial 87, and a vertical movement dial rotation actuator for rotating the vertical movement dial 87 in response to commands from a control device.

[0058] The control device controls the operation of the vertical movement actuator so that the lateral discharge device 81b of the discharge auger 81 moves up and down in the direction in which the mark 87b of the vertical movement dial 87 faces the combine harvester pictogram 87a, and then stops.

[0059] In other words, when the operator operates the up / down movement dial 87 so that the mark 87b faces the front and upper Uh of the combine pictogram 87a as shown in Figure 5, the control device recognizes the operating position Uh using a potentiometer for detecting the rotating dial operating position, and controls the operation of the up / down movement actuator to rotate the lateral discharge device 81b of the discharge auger 81 to a position facing the front and upper Uh of the combine 1 as shown in Figure 6, and stops it (naturally, the grain discharge outlet 81c also stops at the front and upper Uh position of the combine 1).

[0060] Similarly, when the operator operates the up / down movement dial 87 so that the mark 87b faces one of the other operating positions Ah, Gh, Rh, Bh, Dh, etc. of the combine pictogram 87a, the control device recognizes the operating position Ah, Gh, Rh, Bh, Dh, etc. using the potentiometer for detecting the rotating dial operating position, and controls the operation of the rotating drive mechanism to rotate the lateral discharge device 81b of the discharge auger 81 to a position facing the corresponding Ah, Gh, Rh, Bh, Dh, etc. of the combine 1 shown in Figure 6, and stops it.

[0061] Therefore, the lateral discharge device 81b of the discharge auger 81 moves up and down and stops at the position where the mark 87b of the vertical movement dial 87 faces, so that the vertical operating position of the lateral discharge device 81b of the discharge auger 81 can be easily adjusted by the vertical movement dial 87.

[0062] Furthermore, since the lateral discharge device 81b of the discharge auger 81 moves up and down and stops in the direction in which the mark 87b of the up-down movement dial 87 is facing the combine harvester pictogram 87a, the positional relationship between the lateral discharge device 81b of the discharge auger 81 and the combine harvester 1 can be intuitively (imagined) operated, and the up-down operating position can be easily adjusted.

[0063] In summary, the discharge auger 81 (lateral discharge device 81b) rotates and stops in the position indicated by the mark 85b on the rotating dial 85, and the lateral discharge device 81b of the discharge auger 81 moves up and down and stops in the position indicated by the mark 87b on the vertically movable dial 87, so that the position of the discharge auger 81 can be easily adjusted.

[0064] The discharge auger 81 (lateral discharge device 81b) rotates and stops in the direction in which the mark 85b of the rotating dial 85 faces the combine pictogram 85a, and the lateral discharge device 81b of the discharge auger 81 moves up and down and stops in the direction in which the mark 87b of the up-down movement dial 87 faces the combine pictogram 87a, so that the positional relationship between the discharge auger 81 and the combine 1 can be intuitively (imagined) operated and the position can be easily adjusted.

[0065] In addition, when one of the rotating dial 85 and the vertical movement dial 87 is operated to rotate or move up and down the discharge auger 81, operating the other one stops the rotating or vertical movement of the discharge auger 81, and the command of the other one operated later takes priority and operates the discharge auger 81.

[0066] Since the discharge auger 81 has stopped midway through its rotational or up-down movement due to the earlier operation, the control device recognizes the rotational position of the discharge auger 81 (vertical discharge device 81a) from information from the rotational position detection potentiometer, or recognizes the up-down movement position of the discharge auger 81 (horizontal discharge device 81b) from information from the up-down movement position detection potentiometer, and operates the rotation dial rotation actuator or the up-down movement dial rotation actuator to set the rotation dial 85 or the up-down movement dial 87 to the operating position corresponding to its operating position.

[0067] For example, when the discharge auger 81 is rotating by operating the rotation dial 85, if the up-down movement dial 87 is operated, the rotation of the discharge auger 81 stops, and the operation of the up-down movement dial 87 operated later takes priority and the discharge auger 81 is moved up and down.

[0068] Then, since the discharge auger 81 has stopped midway through its rotational movement due to the operation of the rotary dial 85 previously operated, the control device recognizes the rotational position of the discharge auger 81 (vertical discharge device 81a) from information from the potentiometer for detecting the rotational position, and operates the rotary dial rotation actuator to set the rotary dial 85 to the operating position corresponding to its operating position.

[0069] Therefore, the control device recognizes the rotational position of the discharge auger 81 (vertical discharge device 81a) from information from the rotational position detection potentiometer, or the up-down movement position of the discharge auger 81 (horizontal discharge device 81b) from information from the up-down movement position detection potentiometer, and operates the rotary dial rotation actuator or the up-down movement dial rotation actuator to set the rotary dial 85 or the up-down movement dial 87 to an operating position corresponding to the operating position of the discharge auger 81 that stopped halfway through when it was interrupted, so there is no need to correct the position the next time the rotary dial 85 or the up-down movement dial 87 is operated, improving work efficiency.

[0070] Next, the discharge auger 81 has a unique configuration in which the grain discharge outlet 81c of the discharge auger 81 is aligned with the grain receiving port of the recovered grain tank when the discharge auger 81 rotates, moves up and down, and extends and retracts to recover the grain in the grain tank 8 into a recovered grain tank mounted on a truck waiting on an external road, and a detailed configuration will be described below.

[0071] That is, a circle and its center point are drawn on the bottom of the recovered grain tank at the center position as seen in a plan view from the grain receiving port (the circle and its center point may be engraved or may be formed by a convex protrusion).

[0072] A camera for photographing the area below is provided at the tip (grain discharge port 81c) of the lateral discharge device 81b of the discharge auger 81.

[0073] The operation panel 22a is provided with a rotary dial 85, a vertical movement dial 87, and an extension switch 88, as well as an automatic position adjustment switch 89 and a monitor 90 that displays a circle and its center point.

[0074] The operator drives the combine 1 to the side of the recovered grain tank mounted on a truck waiting on the road, and operates the rotation dial 85, the up-down movement dial 87 and the telescopic switch 88 to rotate, move up and down and telescopically operate the discharge auger 81 to manually align the grain discharge outlet 81c with the grain receiving port of the recovered grain tank.

[0075] The monitor 90 displays a center point aligned with the center of the grain discharge outlet 81c and a circle as a figure centered on that center point, as well as a center point and circle drawn at the center of the inside bottom of the collected grain tank photographed by the camera.

[0076] Then, when the operator turns on the automatic position adjustment switch 89, as shown in the control flow diagram of Figure 7, the control device operates the rotation drive mechanism to rotate the discharge auger 81 (and, if necessary, operate the telescopic actuator) so that the center point displayed on the monitor 90 coincides with the center point drawn on the center of the bottom of the tank photographed by the camera, thereby positioning the grain discharge outlet 81c at the center of the grain receiving port of the recovered grain tank.

[0077] Next, the control device operates the up / down actuator to raise and lower the discharge auger 81 (lateral discharge device 81b) so that the circle displayed on the monitor 90 matches the circle drawn at the center of the bottom of the tank photographed by the camera, and positions the grain discharge outlet 81c at a height appropriate for grain discharge from the grain receiving port of the recovered grain tank.

[0078] Therefore, when the automatic position adjustment switch 89 is turned ON, the control device operates the rotation drive mechanism to rotate the discharge auger 81 (and, if necessary, operate the telescopic actuator) so that the grain discharge outlet 81c is positioned at the center of the grain receiving port of the recovered grain tank, and operates the up and down actuator to move the discharge auger 81 (horizontal discharge device 81b) up and down, so that the grain discharge outlet 81c is automatically adjusted to a position at an appropriate height for grain discharge from the grain receiving port of the recovered grain tank, thereby ensuring reliable collection of grains while reducing labor and time.

[0079] Furthermore, the body of the combine 1 is equipped with a GNSS antenna, which is a device for receiving position information, and the control device calculates the position of the combine 1 when it stops to discharge grains into the recovered grain tank mounted on the truck, and calculates and stores the position of the grain discharge outlet 81c when the grain discharge outlet 81c is automatically adjusted to a height appropriate for grain discharge at the center position of the grain receiving port of the recovered grain tank from information from the rotation position detection potentiometer, information from the up and down position detection potentiometer, and information from the extension and retraction position detection potentiometer.

[0080] Then, after the initial discharge of grains into the recovered grain tank mounted on the truck as described above, when harvesting operations are resumed and the grain tank 8 becomes full, the combine 1 is again moved close to the recovered grain tank mounted on the truck and the grain discharge operation is performed using the discharge auger 81. However, since grains are stored in the recovered grain tank during the second discharge, the center point and circle drawn at the center of the bottom of the tank cannot be photographed by the camera.

[0081] Therefore, based on the stored position information of the grain discharge outlet 81c when it is automatically adjusted to a height appropriate for grain discharge at the center position of the grain receiving port of the recovered grain tank, the control device operates the rotation drive mechanism to rotate the discharge auger 81 (and, if necessary, operates the telescopic actuator) to position the grain discharge outlet 81c at the center of the grain receiving port of the recovered grain tank, and operates the up and down operation actuator to move the discharge auger 81 (lateral discharge device 81b) up and down, automatically adjusting the grain discharge outlet 81c to a position at a height appropriate for grain discharge from the grain receiving port of the recovered grain tank.

[0082] In addition, when the combine harvester 1 is moved close to the collected grain tank mounted on the truck and stopped to perform grain discharge work using the discharge auger 81, there may be low electric wires or the like on the road adjacent to the field, and even if the up / down movement dial 87 is operated to activate the up / down actuator to lower the discharge auger 81 (lateral discharge device 81b) to the lowest position, the discharge auger 81 (lateral discharge device 81b) may come into contact with the electric wires and be unable to pass under them and rotate to above the collected grain tank mounted on the truck.

[0083] Therefore, the combine harvester 1 is equipped with a left / right tilt mechanism and a front / back tilt mechanism (vehicle horizontal control mechanism) of the body which changes the height of the left and right traveling devices 4,4 using left and right actuators, respectively. Therefore, by operating the up / down movement dial 87 to operate the up / down movement actuator to lower the discharge auger 81 (lateral discharge device 81b) to the lowest position (after the up / down movement position detection potentiometer which detects the up / down movement position of the lateral discharge device 81b has detected the lowest position), if the up / down movement dial 87 is further operated downward, the vehicle horizontal control mechanism will be operated to tilt the vehicle forward / backward and left / right, thereby lowering the grain discharge outlet 81c of the lateral discharge device 81b of the discharge auger 81.

[0084] Therefore, by operating the vehicle body horizontal control mechanism to tilt the vehicle body forward / backward and left / right, the grain discharge port 81c of the discharge auger 81 can be set to a low position, preventing contact with electric wires, etc. during grain discharge work. [Explanation of symbols]

[0085] 4 Running gear 5 Reaping device 8. Glentank 10 Threshing Equipment 81 Discharge Auger 81c Grain outlet 85 Rotating Dial 85a Pictogram 85b Mark 87 Vertical movement dial 87a Pictogram 87b Mark 89 Automatic position adjustment switch 90 Monitor

Claims

1. This combine harvester is provided with a harvesting device (5), a threshing device (10), a grain tank (8) and a discharge auger (81) on a body having a traveling device (4), and is characterized in that a rotary dial (85) for rotating the discharge auger (81) and a vertical movement dial (87) for moving it up and down are provided, and marks (85b, 87b) are provided on the rotary dial (85) and the vertical movement dial (87), so that the discharge auger (81) is rotated and moved up and down according to the position of the marks (85b, 87b) by operating the rotary dial (85) and the vertical movement dial (87).

2. The combine harvester according to claim 1, characterized in that the rotation dial (85) and the up-down movement dial (87) are arranged superimposed on the combine harvester pictogram (85a, 87a), and the arrangement position corresponds to the mounting position of the discharge auger (81) of the machine body.

3. 3. The combine harvester according to claim 1 or 2, further comprising a rotary dial operation position detector and a vertical movement dial operation position detector for detecting the operation positions of the rotary dial (85) and the vertical movement dial (87), a rotary dial rotation actuator and a vertical movement dial rotation actuator for operating the rotary dial (85) and the vertical movement dial (87), and wherein when one of the rotary dial (85) and the vertical movement dial (87) is operated to rotate or vertically move the discharge auger (81), operating the other interrupts and stops the rotary movement or vertical movement of the discharge auger (81), and the command of the other operated later is given priority to operate the discharge auger (81), and the rotary dial rotation actuator or the vertical movement dial rotation actuator sets the one of the rotary dial (85) or the vertical movement dial (87) operated earlier to an operating position corresponding to the position where the rotary movement or vertical movement of the discharge auger (81) is interrupted and stopped.

4. 3. A combine harvester as claimed in claim 1 or 2, characterized in that a figure and a centre point of the figure are provided at the bottom of the recovered grain tank at a position visible in a plan view from the grain receiving port, a camera for photographing downward is provided at the grain discharge port (81c) of the discharge auger (81), and a monitor (90) is provided which displays the image captured by the camera and also displays the same figure and its centre point as the figure provided at the bottom of the tank, and when an automatic position adjustment switch (89) is operated, the discharge auger (81) is rotated so that the centre point displayed on the monitor (90) coincides with the centre point of the image captured by the camera, and the discharge auger (81) is moved up and down so that the figure displayed on the monitor (90) coincides with the figure in the image captured by the camera, thereby controlling so that the grain discharge port (81c) of the discharge auger (81) is in an appropriate position relative to the grain receiving port of the recovered grain tank.

5. The combine harvester according to claim 4, further comprising: a position information receiving device such as a GNSS antenna on the machine body; a rotational position detector that detects the rotational position of the discharge auger (81); a vertical movement position detector that detects the vertical movement position of the discharge auger (81); and an extension / retraction position detector that detects the extension / retraction position of the discharge auger (81); and a control device that calculates and stores the position of the grain discharge outlet (81c) from the machine body position information, information from the rotational position detector, information from the vertical movement position detector, and information from the extension / retraction position detector when the center point and figure displayed on the monitor (90) match the center point and figure of the image captured by the camera; and when the camera cannot capture the figure and center point of the bottom of the recovered grain tank, an automatic position adjustment switch (89) is operated to move the discharge auger (81) to match the stored position of the grain discharge outlet (81c).

6. 3. A combine harvester as claimed in claim 1 or 2, characterized in that the combine harvester is equipped with a left / right tilting mechanism and a front / rear tilting mechanism for the vehicle body, and is provided with a vertical movement position detector for detecting the vertical movement position of the discharge auger (81), and when the vertical movement dial (87) is operated to be lowered when the discharge auger (81) is in the lowest position, the left / right tilting mechanism and the front / rear tilting mechanism are activated to tilt the vehicle body fore / aft and left / right, thereby lowering the grain discharge outlet (81c) of the discharge auger (81).

Images