JP2010081911A - Combined harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester capable of easily extending in the grain delivery direction the delivery end side of a grain discharge conveyor and, when discharging no grain from a grain tank, easily closing the opening of the delivery end side of the grain discharge conveyor. <P>SOLUTION: The combine harvester includes a grain discharge cylinder 69 rotatably supported at the discharge terminal end of the grain discharge conveyor 8 through a cylinder supporting axis 68, and a grain discharge operating device 70 moving the grain discharge cylinder 69 to be grain discharge posture and grain undischarge posture, formed a discharge hole shutter 69a with a part of the grain discharge cylinder 69, and constituted to be capable of closing the discharge hole of the discharge terminal end of the grain discharge conveyor 8 with the discharge hole shutter 69a when the grain discharge cylinder 69 is supported to be grain discharge posture. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a combine that harvests grain in a glen tank by threshing the harvested grain straw by a threshing apparatus while harvesting an uncut grain straw in a field by a harvesting device, and more specifically, a truck bed or container, etc. The present invention relates to a combine equipped with a grain discharge conveyor for discharging the grain in the grain tank.

A conventional combine harvester harvests unharvested cereals in the field with a reaping device that can be moved up and down on the front side of the traveling aircraft, threshs the harvested cereals with a threshing device, and collects the grains in the Glen tank It is configured to do. In a structure in which a grain outlet tube is provided on the tip side of the grain discharge conveyor, the grain outlet tube is arranged on the tip side of the grain discharge conveyor so that the throwing direction can be changed, and in parallel with the grain discharge conveyor. The exit tube is configured to be foldable (see Patent Document 1). A technique for rotating a grain outlet tube around a shaft support line of a grain discharge conveyor is also known (see Patent Document 2).
JP 2001-78557 A Japanese Patent Laid-Open No. 2006-14

  In the conventional combine, the delivery terminal side of the grain discharge conveyor can be easily extended in the grain delivery direction by the grain outlet tube, but when the grain is not discharged from the glen tank, the tip side of the grain discharge conveyor Since the opening is communicated to the outside via the grain outlet tube, there is a problem that the grain cannot be prevented from leaking from the outlet of the grain discharging conveyor. Moreover, there exists a problem that a mouse | mouth etc. cannot prevent entering into a grain discharge conveyor from a grain throwing-out pipe | tube in a stored state for a long period of time. Therefore, in order to close the opening on the delivery terminal side of the grain discharge conveyor, it is necessary to provide a special closing member, and there is a problem that the structure of the grain discharge conveyor or the grain outlet tube becomes complicated. In addition, when a limit switch for detecting the opening / closing position of the grain discharge cylinder is provided in a structure including an electric motor for moving the grain outlet cylinder, the control structure of the electric motor cannot be easily configured, etc. There is a problem.

  The object of the present invention is to easily extend the delivery terminal side of the grain discharge conveyor in the grain delivery direction, but when the grain is not discharged from the glen tank, the opening on the delivery terminal side of the grain discharge conveyor is opened. The present invention provides a combine that can be easily blocked.

In order to achieve the object, a combine of an invention according to claim 1 includes a traveling machine body equipped with an engine, a reaping device and a threshing device, a grain tank for storing grains from the threshing device, In a combine provided with a grain discharge conveyor for discharging the grain, a grain discharge cylinder that is rotatably supported via a cylindrical fulcrum shaft at a delivery terminal portion of the grain discharge conveyor, and the grain discharge cylinder A grain discharge operation body for moving the body to a grain discharge posture and a grain non-discharge posture, forming a discharge port shutter by a part of the grain discharge cylinder, and When the grain discharge cylinder is supported, the outlet shutter of the grain discharge conveyor can be closed by the outlet shutter .

According to a second aspect of the present invention, in the combine according to the first aspect, the cylindrical fulcrum shaft is arranged on a discharge outlet edge on a grain discharge upper side of a discharge outlet edge of the grain discharge conveyor, and the grain Of the grain receiving side opening edge of the grain discharge cylinder, the grain receiving side opening edge in the vicinity of the outlet shutter is pivotally supported by the cylinder fulcrum shaft.

  According to a third aspect of the present invention, in the combine according to the first aspect, the grain discharge operation body is formed by a grain discharge electric motor, and the grain discharge cylinder is formed according to an operation time of the grain discharge electric motor. The opening / closing operation position is set so that the grain discharging operation body can be opened and closed by the grain discharging electric motor.

According to the first aspect of the present invention, a traveling machine body equipped with an engine, a reaping device and a threshing device, a grain tank for storing the grain from the threshing device, and a grain for discharging the grain in the grain tank. In a combine equipped with a grain discharge conveyor, a grain discharge cylinder that is rotatably supported via a cylindrical fulcrum shaft at a delivery terminal portion of the grain discharge conveyor, and a grain discharge attitude of the grain discharge cylinder and a grain discharge operating body for moving to the grain non discharging position, said forming the outlet shutter by some grain discharge tube body, said the grain non-discharging position grain discharge tube body support Since the discharge outlet of the grain discharge conveyor can be closed by the discharge port shutter when the discharge outlet shutter is closed, the delivery terminal side of the grain discharge conveyor is set in the grain delivery direction. Can be extended easily. Moreover, when the grain is not discharged from the Glen tank, the opening on the delivery terminal side of the grain discharge conveyor can be easily closed. For example, during the harvesting operation (when the grain is not discharged), the outlet of the grain discharge conveyor that opens downward is closed by the outlet shutter, so that the residual grain from the outlet side of the grain discharge conveyor. It can prevent the grain from leaking out. Moreover, it can prevent that a mouse | mouth etc. enter into the said grain discharge conveyor from the discharge port side of the said grain discharge conveyor in the storage state for a long period of time.

According to invention of Claim 2, the said cylinder fulcrum axis | shaft is arrange | positioned in the discharge port edge of the grain discharge upper side among the discharge port edges of the said grain discharge conveyor, and the grain of the said grain discharge cylinder Of the receiving side opening edge, the grain receiving side opening edge in the vicinity of the outlet shutter is configured to be pivotally supported by the cylindrical fulcrum shaft, so that the axis of the grain discharging conveyor The rotation range of the grain discharge cylinder in which the discharge side opening of the grain discharge cylinder rotates in the line extending direction (grain delivery direction) can be easily set to 90 degrees or more. That is, the forward release angle of the grain discharge cylinder and the backward release angle of the grain discharge cylinder can be set to a large release angle with the downward release direction of the grain as the center. It is possible to improve the grain discharge workability to a truck bed or a container.

  According to invention of Claim 3, the said grain discharge operation body is formed with a grain discharge electric motor, and the opening / closing operation position of the said grain discharge cylinder is set with the operating time of the said grain discharge electric motor. Since the grain discharge operation body is configured to be opened and closed by the grain discharge electric motor, there is no need to detect the open / close position of the grain discharge cylinder, and the open / close position of the grain discharge cylinder A limit switch, a harness, and the like that detect the above are no longer necessary, and the control structure of the grain discharge electric motor can be easily configured. Assembling workability and maintenance workability of the grain discharge electric motor and the like can be improved by reducing the number of harnesses installed.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments embodying a combine according to the present invention will be described with reference to the drawings. In the following description, the left side in the forward direction of the traveling machine body 1 is simply referred to as the left side, and the right side in the forward direction is also simply referred to as the right side. The combine of this embodiment is demonstrated with reference to FIG. 1 thru | or FIG. As shown in FIGS. 1 to 3, a traveling machine body 1 supported by a pair of left and right traveling crawlers 2 (traveling portions) is provided. At the front part of the traveling machine body 1, a four-row mowing device 3 for mowing cereals is mounted by a single-acting lifting hydraulic cylinder 4 so as to be adjustable up and down around the mowing pivot fulcrum shaft 4a. . A threshing device 5 having a feed chain 6 and a grain tank 7 for storing grain after threshing are mounted on the traveling machine body 1 side by side. In addition, the threshing apparatus 5 is arrange | positioned at the left side toward the advancing direction of the traveling body 1, and the Glen tank 7 is arrange | positioned at the right side toward the advancing direction of the traveling body 1 (refer FIG. 3).

  A grain discharge conveyor 8 for discharging the grains in the grain tank 7 from the rear to the upper side of the grain tank 7 is provided. It is comprised so that the front part of the glen tank 8 can be rotated to the body side centering on the vertical feed auger 12 of the grain discharge conveyor 8 mentioned later. A driving unit 10 is provided in front of the Glen tank 7 and on the right front of the traveling machine body 1. The driving unit 10 includes an operation device including a step 10a on which an operator gets on, a driver's seat 10b, a steering handle 10c, various operation levers, switches, and the like. An engine 20 as a power source is disposed in the traveling machine body 1 below the driver seat 10b.

  As shown in FIGS. 1 and 2, left and right track frames 21 are arranged on the lower surface side of the traveling machine body 1. The track frame 21 includes a drive sprocket 22 that transmits the power of the engine 20 to the traveling crawler 2, a tension roller 23 that maintains the tension of the traveling crawler 2, and a plurality of track rollers that hold the ground side of the traveling crawler 2 in a grounded state. 24. The driving sprocket 22 supports the front side of the traveling crawler 2, the tension roller 23 supports the rear side of the traveling crawler 2, and the track roller 24 supports the grounding side of the traveling crawler 2.

  As shown in FIG. 1 to FIG. 3, the reaping device 3 includes a four-row culm pulling device 31 that causes uncut cereals in the field and a clipper-type cutting device that cuts the stock of uncut cereals in the field. A cutting blade device 32 and a culm transporting device 33 for transporting the chopped culm from the culm pulling device 31 to the front end (feed start end side) of the feed chain 6 are provided. An uncut grain culm in the field is pulled up by the grain culling pulling device 31, a stock source of the uncut grain culm is cut by the cutting blade device 32, and the harvested corn straw is conveyed to the front end portion of the feed chain 6 by the grain culling pulling device 31. Is done.

  The threshing device 5 includes a handling cylinder 51 for threshing threshing, an oscillating sorting board 52 as an oscillating sorting mechanism for sorting threshing material falling below the handling cylinder 51, and a sorting wind on the oscillating sorting board 52. , A processing fan 54 for reprocessing threshing waste taken out from the rear part of the handling cylinder 51, and a dust exhausting fan 61 for discharging dust at the rear part of the swing sorter 52 to the outside of the machine. It has.

  As shown in FIGS. 1 and 2, an exhaust chain 62 is disposed on the rear end side (feed end side) of the feed chain 6. The waste passed through the feed chain 6 from the rear end side of the feed chain 6 (the grain from which the grain has been threshed) is discharged to the rear of the traveling machine body 1 in a long state, or the rear side of the threshing device 5 After being cut to a suitable length by the waste cutter 63 provided at the front, the paper is discharged to the lower rear of the traveling machine body 1. Also, on the lower side of the rocking sorter 52, a first conveyor 55 for taking out the grain (the first sort) selected by the rocking sorter 52, and a grain with grain, swarf, and branch branch A second conveyor 56 is provided for taking out a second selected product mixed with the like. In addition, from the front side of the traveling direction of the traveling machine body 1, the first conveyor 55 and the second conveyor 56 are arranged on the upper surface side of the traveling machine body 1 above the rear part of the traveling crawler 2 in a side view.

  The swing sorting board 52 is configured to swing-sort (specific gravity sort) the cereal grains that have fallen below the handling cylinder 51. Grains that fall from the oscillating sorter 52 (the first sort) are removed from the grain by the sorter wind from the tang fan 53 and fall first onto the conveyor 55. A first cereal cylinder 57 extending in the vertical direction is connected to a terminal portion of the first conveyor 55 that protrudes outward from one side wall (right side wall in the embodiment) of the threshing device 5 near the grain tank 7. Yes. The grain taken out from the first conveyor 55 is carried into the Glen tank 7 by a first cereal conveyor (not shown) provided in the first cereal cylinder 57 and collected in the Glen tank 7.

  Oscillating sorter 52 performs second sorting such as grain with branches and branches (reduction-reprocessed product for re-sorting mixed grain and swarf) by swing sorting (specific gravity sorting). 56 is configured to be dropped. The second sorting product taken out by the second conveyor 56 is returned to the upper surface side of the swing sorting board 52 through the second reduction cylinder 58 and the second processing unit 59 and is re-sorted. Further, the dust and dust in the crushed material from the handling drum 51 are discharged from the rear portion of the traveling machine body 1 toward the field by the sorting air from the tang fan 53 and the dust suction and discharge action of the dust fan 61. .

  As shown in FIG. 2, the grain discharge conveyor 8 includes a lateral feed auger 11 disposed at the bottom of the Glen tank 7, a vertical feed auger 12 and a vertical feed auger cylinder 13 erected outside the rear part of the Glen tank 7. And a discharge auger 14 and a discharge auger cylinder 15 connected to the upper end side of the longitudinal feed auger 12. An auger turning electric motor 16 for turning the distal end side of the discharge auger tube 15 about a substantially vertical auger axis (vertical axis) of the longitudinal feed auger 12, and a discharge auger tube with the proximal end side of the discharge auger tube 15 as a fulcrum. And an auger lifting / lowering hydraulic cylinder 17 that lifts and lowers the tip end side of 15. The auger turning electric motor 16 or the auger raising / lowering hydraulic cylinder 17 is operated to turn or raise or lower the distal end side of the discharge auger cylinder 15 to an arbitrary position.

  As shown in FIGS. 1 to 3, the lateral feed auger 11 is extended in the front-rear direction in the Glen tank 7, and the grains in the Glen tank 7 are moved by the lateral feed auger 11 from the front part to the rear part of the Glen tank 7. The vertical feed auger 12 is erected on the upper surface side of the traveling machine body 1, and the grains in the grain tank 7 are transferred from the feed end side of the lateral feed auger 11 at the rear of the grain tank 7 to the feed start end on the lower end side of the vertical feed auger 12. Move. The discharge auger 14 is horizontally mounted on the upper surface side of the reaping device 3 and the threshing device 5, and the grain is moved from the feed end side on the upper end side of the vertical feed auger 12 to the feed start end on the rear end side of the discharge auger 14. . The rotational force of the engine 20 is transmitted from the lateral feed auger 11 to the discharge auger 14 via the vertical feed auger 12.

  As shown in FIGS. 1 to 3, an auger stand 18 is provided on the upper surface side of the threshing device 5, and the discharge auger tube 15 is supported via the auger stand 18 at a storage position (non-discharge position). The discharge auger 14 and the discharge auger tube 15 include a front discharge auger 14a and a front discharge auger tube 15a, and a rear discharge auger 14b and a rear discharge auger tube 15b. During the harvesting operation, the front discharge auger tube 15a is connected to the rear discharge auger tube 15b via the lock lever 19, and the discharge auger tube 15 is supported in an extended state from the right rear part to the left front part of the combine machine body. Is done. On the other hand, during non-harvesting operations such as transporting the combine in a truck or storing the combine in a barn, the lock lever 19 is disconnected and the front discharge auger cylinder 15a is placed on the left side of the rear discharge auger cylinder 15b. It folds in half, and the front discharge auger tube 15a is stored compactly on the upper surface side of the threshing device 5.

  Next, with reference to FIG. 4 thru | or FIG. 6, the grain discharge structure of the grain discharge conveyor 8 is demonstrated. As shown in FIGS. 4 to 6, the outlet body 66 is disposed at the front end portion of the front discharge auger tube 15 a that is the sending end portion of the grain discharge conveyor 8. An inlet opening 66a on one end side of the outlet body 66 is integrally fixed to the distal end portion of the front discharge auger tube 15a. The outlet 66b on the other end side of the outlet body 66 is formed in a shape opening downward. The tip of the auger shaft of the front discharge auger 14a is rotatably supported on a front outlet side wall 66c of the outlet body 66 via a bearing bearing 67. The outlet body 66 is formed in a shape in which a square tube is bent into an L shape, and the inlet opening 66a and the outlet 66b are communicated with each other by an L-shaped passage 66d.

  As shown in FIG. 4 to FIG. 6, a square cylinder-shaped grain discharge cylinder 69 that is rotatably supported by a delivery terminal portion of the grain discharge conveyor 8 via a cylindrical fulcrum shaft 68, and a grain discharge cylinder A grain discharging electric motor 70 is provided as a grain discharging operation body for moving 69 to a grain discharging attitude and a grain non-discharging attitude. A bearing hook 66f is formed on the outer side of the rear outlet side wall 66e of the outlet body 66 by an extended portion on the lower end side of the edge of the inlet opening 66a. A retaining arm 72 is fastened to the rear outlet side wall 66e by a bolt 71, and the cylindrical fulcrum shaft 68 is rotatably supported by the bearing hook 66f via the retaining arm 72.

As shown in FIGS. 4 to 6, a discharge port shutter 69 a is formed by a part of the grain discharge cylinder 69. When the grain discharge cylinder 69 is supported in the grain non-discharge posture, the outlet 66 b that is the outlet of the sending terminal end of the grain discharge conveyor 8 can be closed by the outlet shutter 69 a. Yes. That is, the rear surface side of the grain discharge cylinder 69 located on the lower side in the closed posture and positioned on the upper side of the grain discharge in the grain discharge attitude among the four side walls of the rectangular cylinder of the grain discharge cylinder 69 A discharge port shutter 69a is formed by the side wall.

As shown in FIGS. 4 to 6, the cylindrical fulcrum shaft 68 is disposed on the discharge port edge (the discharge port 66 b edge) on the grain discharge upper side of the discharge body 66 among the discharge port edges of the grain discharge conveyor 8. Is done. Of the grain receiving side opening 69b edge of the grain discharging cylinder 69, the grain receiving side opening 69b edge in the vicinity of the discharging port shutter 69a is pivotable to the outlet body 66 via the cylinder fulcrum shaft 68. It is configured to be supported. Further, when the outlet 66b is closed by the outlet shutter 69a, the edge of the grain discharge side opening 69c of the grain outlet cylinder 69 protrudes from the outlet body 66 in the grain discharge direction of the grain discharge conveyor 8. It is configured to do. A soft resin cylindrical body 74 is connected to the edge of the grain discharge side opening 69c via a fastening band 73.

  As shown in FIG. 5, in a shape extending in the circumferential direction centering on the cylindrical fulcrum shaft 68, the throwing face facing the rear outlet side wall 66e on which the cylindrical fulcrum shaft 68 is installed, of the side walls of the outlet body 66. An upper corner portion 66g of the outlet front side wall 66c is formed. As a result, it is possible to reduce the interval between the upper outlet side wall 66 h and the side wall of the grain discharge cylinder 69 among the side walls of the outlet body 66. In addition, the front side wall 69d of the grain discharge cylinder 69 facing the front outlet side wall 66c of the side walls of the grain discharge cylinder 69 is formed in a shape extending in the circumferential direction around the cylinder fulcrum shaft 68. Forming. As a result, the interval between the grain receiving side opening 69b edge of the grain discharge cylinder 69 and the upper surface of the front discharge auger cylinder 15a or the front outlet side wall 66c can be reduced.

As shown in FIGS. 4 and 6, in a state where a part or all of the outlet body 66 is fitted, the grain discharge cylinder 69 is disposed in the extending direction of the grain discharge conveyor 8 on which the outlet body 66 is arranged. The grain discharge side opening 69c is configured to be movable. That is, when the grain discharge cylinder 69 is supported in a grain non-discharge posture, in other words, when the outlet 66b is closed by the outlet shutter 69a, the entire outlet body 66 discharges the grain. It is enclosed in the cylinder 69 (refer FIG. 4). As a result, when the grain discharge cylinder 69 is supported in the grain non-discharge posture, the length of the grain discharge cylinder 69 protruding in the extending direction of the grain discharge conveyor 8 can be formed short.

On the other hand, when the grain discharge cylinder 69 is supported in the grain discharge posture, in other words, when the discharge port shutter 69a moves backward from the closing position of the outlet 66b and the outlet 66b is opened. The grain receiving side opening 69b edge of the grain discharge cylinder 69 is fitted to a part (edge of the outlet 66b) of the outlet body 66 (see FIG. 6). As a result, when the grain discharge cylinder 69 is supported in the grain discharge posture, the length of the grain discharge cylinder 69 protruding below the outlet body 66 can be increased.

As shown in FIG. 1 thru | or FIG. 6, the traveling body 1 which mounted the engine 20, the reaping device 3, the threshing device 4, the Glen tank 7 which stores the grain from the threshing device 4, and the grain in the Glen tank 7 are shown. In a combine comprising a grain discharge conveyor 8 for discharging, a grain discharge cylinder 69 that is rotatably supported by a delivery terminal portion of the grain discharge conveyor 8 via a cylindrical fulcrum shaft 68, and a grain discharge cylinder And a grain discharge electric motor 70 as a grain discharge operation body for moving 69 to a grain discharge posture and a grain non-discharge posture, and a discharge port shutter 69a is formed by a part of the grain discharge cylinder 69. When the grain discharge cylinder 69 is supported in the grain non-discharge posture, the discharge outlet shutter 69a is configured to be able to close the discharge port at the sending end portion of the grain discharge conveyor 8. Therefore, the delivery terminal side of the grain discharge conveyor 8 can be easily extended in the grain delivery direction. Moreover, when the grain is not discharged from the glen tank 7, the opening on the delivery terminal side of the grain discharge conveyor 8 can be easily closed. For example, during the harvesting operation (when the grain is not discharged), the discharge port of the grain discharge conveyor 8 that opens downward is blocked by the discharge port shutter 69a, thereby remaining from the discharge port side of the grain discharge conveyor 8. It can prevent the kernel from leaking out. Moreover, it can prevent that a mouse | mouth etc. enter into the grain discharge conveyor 8 from the discharge port side of the grain discharge conveyor 8 in the storage state for a long period of time.

As shown in FIGS. 4 to 6, a cylinder fulcrum shaft 68 is disposed on the discharge outlet edge of the grain discharge conveyor 8 on the grain discharge upper edge side, and the grain receiving side of the grain discharge cylinder 69 is arranged. Among the opening edges, the grain receiving side opening edge in the vicinity of the discharge port shutter 69 a is configured to be pivotally supported by a cylindrical fulcrum shaft 68. Therefore, the rotation range of the grain discharge cylinder 69 in which the discharge side opening of the grain discharge cylinder 69 rotates in the extending direction of the axis of the grain discharge conveyor 8 (the grain delivery direction) is 90 degrees or more. Easy to set. That is, the forward release angle of the grain discharge cylinder 69 and the backward release angle of the grain discharge cylinder 69 can be set to a large release angle centering on the downward grain release direction. It is possible to improve the grain discharge workability to a truck bed or a container.

  As shown in FIG. 4 to FIG. 6, a shape (polygonal, arcuate) extending in the circumferential direction with a cylindrical fulcrum shaft 68 as a center is provided at the delivery terminal portion of the grain discharge conveyor 8. In addition, an upper corner portion 66g of the front outlet side wall 66c facing the rear outlet side wall 66e where the cylindrical fulcrum shaft 68 is installed is formed in the side wall of the outlet body 66, and the cylindrical fulcrum shaft 68 is the center. A discharge cylinder front side wall 69d of the grain discharge cylinder 69 facing the outlet front side wall 66c is formed in a shape (polygon or arc) extending in the circumferential direction. Therefore, when the grain discharge cylinder 69 is stored in the extending direction of the grain discharge conveyor 8, the outlet (the outlet body 66) of the grain discharge conveyor 8 is compactly included in the grain discharge cylinder 69. it can. The grain discharge cylinder 69 can be accommodated in the extending direction of the grain discharge conveyor 8 without projecting greatly in the vertical direction or the left-right direction of the grain discharge conveyor 8.

As shown in FIG. 4 to FIG. 6, a discharge outlet body 66 is provided at the delivery terminal end of the grain discharge conveyor 8, and a cylindrical fulcrum shaft is provided at the discharge outlet edge of the grain discharge upper side among the discharge outlet edges of the outlet outlet body 66. 68, and the grain receiving side opening edge 69b in the vicinity of the outlet shutter 69a of the grain receiving side opening edge 69b of the grain discharging cylinder 69 is pivotally supported by the cylinder fulcrum shaft 68, In a state where a part or all of the outlet body 66 is fitted, the grain discharge side opening 69c of the grain discharge cylinder 69 can be moved in the extending direction of the grain discharge conveyor 8 on which the outlet body 66 is arranged. It is configured. Therefore, the grain discharge cylinder 69 can be stored compactly in the extending direction of the grain discharge conveyor 8 (the grain sending direction). The folded vertical width dimension of the grain discharge cylinder 69, that is, the dimension in which the lower surface side of the grain discharge cylinder 69 protrudes on the lower face side of the grain discharge conveyor 8 in the storage state of the grain discharge cylinder 69 can be formed. It is possible to prevent the lower surface side of the grain discharge cylinder 69 from contacting the upper surface side cover or the like of the threshing device 5. The grain discharge conveyor 8 can be brought close to and stored in the upper surface side cover or the like of the threshing device 5. Since the vertical width dimension of the combine machine can be formed compactly, it is possible to improve transport workability and storage workability.

  Next, the open / close structure of the grain discharge cylinder 69 and the opening / closing control of the grain discharge cylinder 69 using the grain discharge electric motor 70 will be described with reference to FIGS. As shown in FIG. 5, the grain discharge electric motor 70 is fastened to the right outer surface of the front discharge auger tube 15 a with a bolt 81. A fan-shaped opening / closing gear 82 is pivotally supported on the right outer side surface of the front discharge auger cylinder 15 a via a gear support shaft 83. The open / close gear 82 is engaged with the output shaft 84 of the grain discharging electric motor 70 via the output gear 85. One end of a rod 86 with a turnbuckle that can be adjusted in length is connected to the open / close gear 82 by a pin shaft 87. The other end side of the rod 86 with the turnbuckle is connected to an opening / closing link 88 provided on the cylindrical fulcrum shaft 68. The grain discharge cylinder 69 is configured to open and close by forward / reverse operation of the grain discharge electric motor 70.

  As shown in FIGS. 2, 3, and 7, an operation side opening / closing switch 91, a timer setting unit 92, and a mode changeover switch 93 provided in the operation unit 10, and a tip side opening / closing switch 94 provided at the sending terminal end of the grain discharge conveyor 8 And a grain discharge controller 95 formed by a computer. The grain discharge controller 95 is connected to the operation side opening / closing switch 91, the timer setting unit 92, the mode switching switch 93 and the tip side opening / closing switch 94. The grain discharge controller 95 is connected to the grain discharge electric motor 70 for output. The grain discharging electric motor 70 is rotated forward or backward by the operation of the driving side opening / closing switch 91 or the operation of the front end side opening / closing switch 94. The grain discharging electric motor 70 operates forward or reverse for the time set by the timer setter 92. By operating the mode changeover switch 93, the grain discharge electric motor 70 is rotated forward or reversely and the grain discharge cylinder 69 is stopped at a predetermined position in a predetermined posture, or the grain discharge electric motor 70 is repeatedly rotated forward or backward. The reverse operation is performed so that the grain discharge cylinder 69 swings back and forth (swings) within a predetermined range (within the grain discharge range).

As shown in FIG. 8, the grain discharge control of the grain discharge electric motor 70 is executed. That is, the timer set value of the timer setter 92 is read when the timer set value of the timer setter 92 is read, and the operator opening / closing switch 91 is turned on by the operator of the operating unit 10 and the grain discharging electric motor 70 is opened. Based on the above, the grain discharging electric motor 70 is opened for a set time. As a result, as shown in FIG. 6, the grain discharge cylinder 69 moves from the closed position A to the diagonally forward position B, and forwards diagonally forward in the grain feed direction of the grain discharge conveyor 8. Kernels are discharged from Incidentally, the grain discharge control of the grain discharge electric motor 70, have name is to say that which is executed in a state supporting the grain discharge tube 69 above the loading platform or container of the track not shown.

  Further, when the grain discharge electric motor 70 is opened again by turning on the operation side opening / closing switch 91, the grain discharge electric motor 70 is further opened for a set time based on the timer set value of the timer setting unit 92, The grain discharge cylinder 69 moves from the diagonally forward position B to the downward position C, and the grain is discharged from the grain discharge cylinder 69 in the downward direction orthogonal to the grain feeding direction of the grain discharge conveyor 8.

  Furthermore, when the grain discharge electric motor 70 is opened again by turning on the operation side opening / closing switch 91, the grain discharge electric motor 70 is further opened for a set time based on the timer set value of the timer setter 92, The grain discharge cylinder 69 moves from the downward position C to the oblique rear position D, and the grain is discharged from the grain discharge cylinder 69 in the grain feed direction of the grain discharge conveyor 8 toward the oblique rear.

  That is, the grain discharge cylinder 69 is shifted from the closed position A to the diagonally forward position B and from the diagonally forward position B to the downward position C according to the number of ON operations of the driving side opening / closing switch 91 that the grain discharging electric motor 70 is opened. , And the grain is discharged from the grain discharge cylinder 69 so as to be dispersed in a wide range by moving from the downward position C to the oblique rear position D.

  On the other hand, when the grain discharge electric motor 70 is closed by turning on the operation side opening / closing switch 91, the grain discharge electric motor 70 is closed for a set time based on the timer set value of the timer setting device 92, and the grain is discharged. The grain discharge cylinder 69 moves from the oblique rear position D to the downward position C. Further, when the grain discharge electric motor 70 is closed again by turning on the operation side opening / closing switch 91, the grain discharge electric motor 70 is further closed for a set time based on the timer set value of the timer setter 92. The grain discharge cylinder 69 moves from the downward position C to the diagonally forward position B. Further, when the grain discharge electric motor 70 is closed again by turning on the operation side opening / closing switch 91, the grain discharge electric motor 70 is closed again for a set time based on the timer set value of the timer setter 92. The grain discharge cylinder 69 moves from the diagonally forward position B to the closed position A, and the grain discharging operation is completed.

  On the other hand, similarly to the ON operation of the driving side opening / closing switch 91, the ON operation of the leading end opening / closing switch 94 opens the grain discharging electric motor 70, and the kernel discharging is performed for a set time based on the timer set value of the timer setting unit 92. When the electric motor 70 is opened, the grain discharge cylinder 69 moves from the closed position A to the diagonally forward position B, transitions from the diagonally forward position B to the downward position C, or diagonally backward from the downward position C. It moves to D and is discharged | emitted so that a grain may be scattered from the grain discharge cylinder 69 in a wide range. In addition, when the grain discharge electric motor 70 is closed and the grain discharge electric motor 70 is closed for a set time based on the timer set value of the timer setting device 92, the grain discharge cylindrical body 69 is positioned at an oblique rear position D. From the downward position C to the diagonally forward position B, or from the diagonally forward position B to the closed position A, and the grain discharging operation is completed.

  Further, when the operation side opening / closing switch 91 and the mode changeover switch 93 are turned on, the operation of opening and closing the grain discharging electric motor 70 is continuously repeated. That is, the grain discharge cylinder 69 swings so as to reciprocate between the diagonally forward position B and the diagonally backward position D, and the grain discharge cylinder 69 enters the interior of a truck bed or a container (not shown). It is discharged so that the grains are scattered over a wide area.

As shown in FIGS. 6 to 8, the grain discharge operation body is formed by the grain discharge electric motor 70, the opening / closing operation position of the grain discharge cylinder 69 is set according to the operation time of the grain discharge electric motor 70, and the grain The grain discharge cylinder 69 is configured to be openable and closable by the grain discharge electric motor 70. Therefore, it is not necessary to detect the opening / closing position of the grain discharge cylinder 69, and a limit switch, a harness and the like for detecting the opening / closing position of the grain discharge cylinder 69 become unnecessary, and the control structure of the grain discharge electric motor 70 is eliminated. Can be configured easily. Assembling workability and maintenance workability of the grain discharging electric motor 70 can be improved by reducing the number of harnesses installed.

It is a left view of the combine for 4 thread cutting of this invention. It is a right view of a combine. It is a top view of a combine. It is an expanded sectional view of a grain discharge conveyor and a grain discharge cylinder. It is an expanded sectional view of a spout body and a grain discharge cylinder. It is operation | movement explanatory drawing of a grain discharge cylinder. It is a control circuit diagram of a grain discharging electric motor. It is a flowchart of grain discharge control.

1 traveling machine body 3 reaping device 5 threshing device 7 grain tank 8 grain discharge conveyor 20 engine 66 outlet body 68 cylinder fulcrum shaft 69 grain discharge cylinder 69a outlet shutter 70 grain discharge electric motor (grain discharge operation body )

Claims (3)

In a combine equipped with a traveling machine equipped with an engine, a reaping device and a threshing device, a grain tank for storing the grain from the threshing device, and a grain discharge conveyor for discharging the grain in the grain tank,
A grain discharge cylinder that is rotatably supported via a cylinder fulcrum shaft at the delivery terminal of the grain discharge conveyor, and the grain discharge cylinder is moved between a grain discharge posture and a non-grain discharge posture. A kernel discharging operation body
A discharge outlet shutter is formed by a part of the grain discharge cylinder, and when the grain discharge cylinder is supported in a grain non-discharge posture, the discharge outlet shutter sends the grain discharge conveyor. A combine characterized in that the discharge port at the end can be closed.   The cylindrical fulcrum shaft is arranged at the discharge outlet edge on the grain discharge upper side of the discharge outlet edge of the grain discharge conveyor, and the vicinity of the discharge outlet shutter among the grain receiving side opening edges of the grain discharge cylinder The combine according to claim 1, wherein the grain receiving side opening edge is rotatably supported by the cylindrical fulcrum shaft. The grain discharge operation body is formed by a grain discharge electric motor, an opening / closing operation position of the grain discharge cylinder is set according to an operation time of the grain discharge electric motor, and the grain discharge electric motor sets the grain The combine according to claim 1, wherein the discharge operation body is configured to be openable and closable.

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