JP2010178659A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester capable of lightening a load by a friction mechanism installed in an interlock mechanism when the unexpected load is given to a tip unloading cylinder because when a shock load is transmitted to the interlock mechanism connected to the tip unloading cylinder, a risk of damaging a pivotally supporting part and a gear meshing part of the interlock mechanism is present. <P>SOLUTION: The combine harvester is constituted as follows: the tip unloading cylinder 69 is freely turnably installed in the end terminal part of the auger cylinder of an unloading auger 14 through a spindle, and the end terminal opening part of the unloading auger 14 is opened and closed by the upper and lower turning of the tip unloading cylinder 69 by the interlock mechanism R installed between an output shaft from an electrically driven motor 70 for driving the unloading cylinder, and the tip unloading cylinder 69. A friction mechanism F is installed between turning positions in the interlock mechanism R of the tip unloading cylinder 69 to absorb the load given to the tip unloading cylinder 69 from the exterior. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention cuts uncut cereal grains in the field with a reaping device, threshs the cereal cereal with a threshing device and stores the grains in a glen tank, and discharges located above the ceiling of the fuselage and communicated with the glen tank More specifically, the present invention relates to a combine provided with a discharge auger that discharges grains in a grain tank to a truck bed or a container.

  Conventional combine harvesters harvest uncut cereals in the field by a reaping device that can be moved up and down on the front side of the traveling machine body, thresh the harvested cereals by a threshing device, and store the grains in a glen tank It is configured as follows. And it is comprised so that it may discharge | emit and take out from the body by the discharge auger connected to the Glen tank. There is a structure in which a discharge tube is provided on the tip side of the discharge auger, and the discharge tube is connected continuously so that the discharge direction of the grains can be changed, and the discharge tube can be folded in parallel with the discharge auger. There is a configured technique (see Patent Document 1). Furthermore, a technique for rotating the discharge cylinder around the axis of the discharge auger is also known (see Patent Document 2).

JP 2001-78557 A Japanese Patent Laid-Open No. 2006-14

  In such a combine, the discharge end of the discharge auger can be easily extended in the grain delivery direction by the discharge cylinder, but the opening on the front end side of the discharge auger can be passed through the discharge cylinder even when the grain is not discharged from the grain tank. Since it communicates with the outside, there is a problem that it is not possible to prevent the grain from leaking from the connecting portion between the discharge auger and the discharge tube. In addition, there is a problem that it is impossible to prevent a mouse or the like from entering the discharge auger from the discharge tube in the storage state for a long time. Therefore, in order to close the opening on the delivery terminal side of the discharge auger, it is necessary to provide a special closing member, and there is a problem that the structure of the discharge auger and the discharge cylinder becomes complicated.

  In order to solve such a problem, the discharge tube is configured to swing freely downward from the horizontal position at the tip of the discharge auger, and when it is horizontal, that is, when the discharge auger has the same axis as the axis, The tip of the discharge auger is closed so that the grain is not discharged. When the discharge tube is rotated downward, the tip of the discharge auger is opened to allow the grain to be discharged. It is conceivable that the grain discharge direction of the discharge cylinder can be adjusted by the rotation angle.

  However, when the tip discharge cylinder is configured to open and close the tip of the discharge auger in such a manner that the tip discharge cylinder can be pivoted about the support shaft, the tip discharge cylinder is inadvertently disposed during the grain discharging operation from the tip discharge cylinder. If the discharge auger or the tip discharge cylinder is inadvertently contacted with a part of the machine body and a forcible rotational load is applied to the tip discharge cylinder, There is a risk that the interlocking mechanism for carrying out a load will be damaged.

  The object of the present invention is to reduce the impact load applied to the tip discharge cylinder when the tip discharge cylinder is inadvertently abutted against an operator or a peripheral object when the tip discharge cylinder is automatically controlled or manually controlled. If it is transmitted to the interlocking mechanism connected to, the pivoting part of the interlocking mechanism and the gear meshing part may be damaged. It is intended to provide a combine that is allowed to escape by a friction mechanism.

  In order to achieve the above object, the invention described in claim 1 includes a traveling machine body, a reaping device and a threshing device, a Glen tank for storing grains threshed by the threshing device, and a stored grain communicating with the Glen tank. In a combine provided with a discharge auger that discharges the outside of the machine, a tip discharge cylinder is rotatably connected to an end of the auger cylinder of the discharge auger via a support shaft, and an electric motor for rotating the tip discharge cylinder is used. It is configured to open and close the terminal opening of the discharge auger by rotating the tip discharge cylinder up and down by an interlocking mechanism interposed between the output shaft of the tip discharge cylinder and the interlocking mechanism of the tip discharge cylinder It is characterized in that it is configured to absorb a load applied to the tip discharge tube from the outside by interposing a friction mechanism at the rotating part.

  According to a second aspect of the present invention, in the combine according to the first aspect, the friction mechanism includes an open / close gear linked to the output shaft of the electric motor, and a rod base end linked to the support shaft of the tip discharge cylinder. It is characterized by being interposed between.

  According to a third aspect of the present invention, in the combine according to the second aspect, the turning radius of the opening / closing gear meshed with the output portion is made larger than the turning radius of the output portion of the driving portion, and the output portion of the driving portion is interlocked. The connected open / close gear is configured to be rotatable via a gear support shaft, and the base end of the interlocking link is pivotally supported on the gear support shaft, and the tip of the interlocking link is interlocked with the tip discharge cylinder via the pin shaft. It is connected to the connected rod base end, and a multi-plate clutch as a friction mechanism having a gear support shaft as an axis is interposed between the open / close gear and the interlocking link.

  According to the first aspect of the present invention, since the friction mechanism is interposed at the rotating portion of the interlocking mechanism of the tip discharge cylinder, when a large load is applied to the tip discharge cylinder, the friction mechanism is The load can be absorbed, and there is an effect that it is possible to prevent damage to the interlocking mechanism connected to the tip discharge tube.

  According to the invention of claim 2, since it is interposed between the open / close gear connected to the output portion of the driving portion and the load proximal end linked to the support shaft of the tip discharge cylinder, it is applied to the tip discharge cylinder in the interlocking mechanism. The load can be easily relieved at the place where the load is most easily absorbed, and the entire rotating mechanism of the tip discharge cylinder is protected without affecting the interlocking mechanism other than the interlocking part between the open / close gear and the rod base end. Has a useful effect.

  According to the invention of claim 3, in the interlocking mechanism connected to the rod from the opening and closing gear, the support shaft of the opening and closing gear is used as the pivotal support portion of the interlocking link base end connected to the rod, and the multi-plate clutch about the gear supporting shaft is opened and closed. Since it is interposed between the gear and the interlocking link, the multi-plate clutch between the open / close gear and the interlocking link can absorb loads such as impact on the tip discharge cylinder. If an inadvertent load is generated while transmitting a large amount of power, the load can be released. Especially, the load is released in the lower part of the electric motor. This structure has a structure in which no load is applied to the portion, and has an effect of helping to protect the output shaft of the electric motor serving as a power generation source.

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 a top view which shows the structure of an auger clutch. It is sectional drawing which shows the cross-section in the XX line of FIG. It is an expanded sectional view of a grain discharge conveyor and a tip discharge pipe. It is operation | movement explanatory drawing of a front-end | tip discharge | emission pipe | tube. It is an expanded sectional view of a discharge outlet body and a tip discharge cylinder. It is a top view which shows the structure of a friction mechanism. It is a figure which shows arrangement | positioning of the various operation switches in an operation panel. It is a control circuit diagram of the discharge cylinder driving electric motor.

Hereinafter, the combine which concerns on this invention is demonstrated based on drawing.
[1. About the overall structure of the combine 100]
As shown in FIGS. 1 to 3, the combine 100 includes a traveling machine body 1 that is supported by a pair of left and right traveling crawlers 2 (traveling parts), and the front part of the traveling machine body 1 cuts grain cereal 4. A trimming device 3 for trimming is mounted so that it can be moved up and down around a cutting rotation fulcrum shaft 4a by a single-acting lifting hydraulic cylinder (not shown). A threshing device 5 and a Glen tank 7 for storing grain after threshing are mounted in parallel. In addition, the threshing apparatus 5 is arrange | positioned on the left side toward the advancing direction of the traveling body 1, and the glen tank 7 is arrange | positioned on the right side in the advancing direction of the traveling body 1 (refer FIG. 3).

  A drainage auger 14 in the grain discharge conveyor 8 is rotatably disposed along the machine body ceiling 9 in order to discharge the grain in the grain tank 7 to the outside of the machine body behind the grain tank 7. A driving unit 10 is provided in front of the Glen tank 7 at the front right side of the traveling machine body 1, and an engine 20 as a power source is disposed in the traveling machine body 1 below the driving unit 10.

  As shown in FIGS. 1 and 2, left and right traveling frames 21 are arranged on the lower surface side of the traveling machine body 1, and the traveling crawler 2 is provided on the traveling frame 21. In addition, the front side of the traveling crawler 2 is supported by the drive sprocket 22, the rear side of the traveling crawler 2 is supported by the tension roller 23, and the grounding side of the traveling crawler 2 is supported by the track roller 24.

  As shown in FIGS. 1 to 3, the reaping device 3 is a hair clipper type that cuts the culm pulling device 31 for four ridges that cause uncut cereals in the field and the stock of uncut cereals in the field. And a culm transporting device 33 for transporting the chopped culm from the cereal pulling device 31 to the front end (feed start end side) of the feed chain 6. Accordingly, the grain-cutting device 31 raises the uncut grain culm in the field, the cutting blade device 32 cuts the stock of the uncut grain culm, and the grain-powder raising device 31 cuts the chopped grain cake at the front end of the feed chain 6. Is transported.

  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, a waste chain 62 is disposed on the rear end side (feed end side) of the feed chain 6. The waste handed over from the rear end side of the feed chain 6 to the waste chain 62 is discharged to the rear of the traveling machine body 1 in a long state or by a waste cutter 63 provided on the rear side of the threshing device 5. After being cut to a suitable short length, it 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.

  The oscillating sorter 52 is configured to oscillate and sort the cereals that have fallen below the handling cylinder 51, and the grain that has fallen from the oscillating sorter 52 (the first sort) is contained in the grain. The dust is removed by the sorting air from the Kara fan 53 and falls first onto the conveyor 55. The end portion of the first conveyor 55 is connected in communication with a first cereal cylinder 57 extending in the vertical direction, and the grain taken out from the first conveyor 55 is provided in the first cereal cylinder 57. It is carried into the Glen tank 7 from a blasting conveyor (not shown) and stored 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. .

[2. About the grain discharge conveyor 8]
As shown in FIG. 2, the grain discharge conveyor 8 includes a lateral feed auger 11 disposed at the bottom of the grain tank 7, a vertical feed auger 12 and a vertical feed auger cylinder 13 erected outside the rear part of the grain tank 7. And a discharge auger 14 and a discharge auger cylinder 15 which are connected to the upper end side of the longitudinal feed auger 12 and placed on the machine body ceiling 9. Around the upper end of the substantially vertical auger axis of the longitudinal auger 12, an auger turning electric motor 16 for turning the distal end around the proximal end side of the discharge auger tube 15 and a proximal end side of the discharge auger tube 15 are provided. An auger lifting / lowering hydraulic cylinder 17 that lifts and lowers the distal end side of the discharge auger cylinder 15 is provided at the fulcrum. Therefore, the distal end side of the discharge auger cylinder 15 can be swung or lifted to an arbitrary position via the auger turning electric motor 16 or the auger lifting hydraulic cylinder 17. In order to perform the pivoting and raising / lowering operations on the base end side of the discharge auger tube 15, the base end side of the discharge auger tube 15 and the upper end side of the longitudinal feed auger tube 13 are interlocked and connected via a pivot portion m. Yes.

  As shown in FIGS. 1 to 3, the transverse feed auger 11 is laid in the front-rear direction of the inner bottom portion of the Glen tank 7, and is configured to move the grains in the Glen tank 7 from the front portion to the rear portion of the Glen tank 7. A vertical feed auger 12 is erected from the grain tank 7 to the machine body ceiling 9 of the traveling machine body 1, and the feed end side of the horizontal feed auger 11 at the bottom of the grain tank 7 and the lower end of the vertical feed auger 12. The feed start end on the side is connected so as to be able to deliver the grain, and the grain in the Glen tank 7 is configured to be transportable in the direction of the machine body ceiling 9. Reference numeral 26 denotes a connection gear portion in which the rear end portion of the lateral feed auger 11 and the start end portion of the vertical feed auger 12 are interlocked and connected in a perpendicular direction, and is configured by interposing a gear such as a bevel gear. A discharge auger 14 is horizontally mounted on the upper surface side of the reaping device 3 and the threshing device 5, that is, on the machine body ceiling portion 9. The start end is connected so that the grain can be delivered, and the grain is conveyed from the grain tank 7 to the end of the discharge auger 14.

  Power from the engine 20 is transmitted to the grain discharge conveyor 8 that collectively refers to each auger via a power transmission mechanism, and power is intermittently connected to the grain discharge conveyor 8 in the middle of the power transmission mechanism. An auger clutch 25 for performing the above is provided. That is, a clutch mechanism as an auger clutch 25 is provided at a portion where power is transmitted from the engine 20 to the lateral feed auger 11 in the Glen tank 7, for example, as shown in FIG. By the intermittent operation of the auger clutch 25, the grain discharge operation of the discharge auger 14 which is the lower side auger in the grain discharge conveyor 8 can be turned on and off.

  The clutch mechanism as the auger clutch 25 is a friction clutch disc (not shown) between an output shaft (not shown) located at the end of the power transmission mechanism from the engine 20 and the auger shaft 11a start end of the lateral feed auger 11. And the clutch mechanism can be intermittently connected by pressing and separating the clutch disc. In addition, the intermittent operation of the clutch mechanism is performed by manual operation or automatic operation, and is related to the operation of the tip discharge cylinder 69 in a certain rotation range as will be described later.

  That is, the clutch mechanism as the auger clutch 25 is configured as follows, as shown in FIGS. That is, a driving pulley 20-2 is provided at the tip of the laterally projecting output shaft 20-1 of the engine 20, and the driving pulley 20-2 is configured to transmit power to the interlocking pulley 20-4 via the belt 20-3. The interlocking shaft 20-5 of the interlocking pulley 20-4 extends in the lateral direction of the traveling machine body 1, and the tip of the interlocking shaft 20-5 transmits the power in a right angle direction via the bevel gear 20-6. The auger drive pulley 20-7 is connected to the front end in the perpendicular direction, and the auger belt 20- is provided between the auger drive pulley 20-7 and the auger passive pulley 20-8 provided on the starting end shaft of the lateral feed auger 11. 9 is suspended. In addition, the tension pulley 20-10 can be pressed in the middle of the auger belt 20-9.

  The auger clutch 25 is mainly composed of an auger drive pulley 20-7, an auger passive pulley 20-8, an auger belt 20-9, and a tension pulley 20-10 that can be press-contacted freely. Is performed by operating an auger clutch switch Y14 provided on an operation panel Y or the like of the operating unit 10.

  That is, the base end of the support arm 20-11 of the tension pulley 20-10 is pivotally supported by an interlocking case 20-12 that casings an interlocking mechanism from the engine 20 to the auger drive pulley 20-7. Is equipped with an auger clutch motor 20-13 so that the tension pulley 20-10 can be pressed or separated via the support arm 20-11 by the ON / OFF operation of the auger clutch motor 20-13. is doing. In FIG. 4, reference numeral 20-14 denotes a tension pulley that can be pressed against the belt 20-3 that is substantially suspended between the output shaft 20-1 of the engine 20 and the interlocking pulley 20-4.

  As described above, the intermittent operation of the auger clutch 25 is performed by the auger clutch switch Y14 of the operation panel Y of the operation panel Y which will be described later or the operation panel Y which is disposed near the terminal end of the grain discharge conveyor 8 or is portable. .

  As shown in FIGS. 1 to 3, an auger stand 18 is erected on the upper surface side of the threshing device 5, that is, on the machine body ceiling portion 9, and is discharged to the storage position (non-discharge position) via the auger stand 18. The cylinder 15 is supported. The discharge auger 14 and the discharge auger cylinder 15 are composed of a front discharge auger 14a, a front discharge auger cylinder 15a, a rear discharge auger 14b, and a rear discharge auger cylinder 15b. The front discharge auger tube 15a is connected in a straight line to the tube 15b via the lock lever 19, and the discharge auger tube 15 is supported in an extended posture from the right rear portion of the combine 100 toward the left front portion. On the other hand, during non-harvesting work, for example, when transporting a combine by a truck or storing it in a barn, the lock lever 19 is disconnected and the front discharge auger cylinder 15a is folded in half to the left side of the rear discharge auger cylinder 15b. The front discharge auger tube 15a is compactly stored together with the rear discharge auger tube 15b on the upper surface of the threshing device 5.

[3. About the discharge auger 14 and the tip discharge cylinder 69]
Next, with reference to FIGS. 6-8, the grain discharge structure of the discharge auger 14 in the grain discharge conveyor 8 is demonstrated. As shown in FIGS. 6 to 8, a guide cylinder 66 is continuously provided at the front end of the front discharge auger cylinder 15a, which is a delivery terminal part of the discharge auger 14, and is provided at the front end opening of the front discharge auger cylinder 15a. A proximal end opening 66a on the proximal end side of the guide cylinder 66 is formed in a communicating state. A lower opening 66b formed on the lower end side of the guide cylinder 66 opens downward, and the front auger shaft tip of the front discharge auger 14a is freely rotatable via a bearing bearing 67 on the closed front side wall 66c of the guide cylinder 66. Is pivotally supported. The guide cylinder 66 is formed in a shape obtained by bending a square cylinder into an L shape, and the base end opening 66a and the lower opening 66b are communicated with each other by an L-shaped passage 66d.

  As shown in FIGS. 6 to 8, a rectangular tube-shaped tip discharge tube 69 is rotatably connected to a delivery terminal portion of the discharge auger 14 in the grain discharge conveyor 8 via a support shaft 68. At the end of the discharge auger 14, an electric motor 70 for driving the discharge cylinder as a grain discharge operation body (displacement of the tip discharge cylinder 69 times) as a grain discharge operation body for displacing the tip discharge cylinder 69 between the grain discharge attitude and the grain non-discharge attitude. A moving electric motor 70) is provided. A bearing hook 66f is formed on the outer side of the shielding wall 66e erected on the inner bottom surface of the guide cylindrical body 66 by an extended portion on the lower end side of the base end opening 66a, and the support shaft 68 can be rotated on the bearing hook 66f. I support it.

  As shown in FIGS. 6 to 8, the tip discharge cylinder 69 has an axis substantially the same as the axis of the discharge auger 14 in the horizontal state, and forms a discharge port shutter 69 a of the discharge auger 14 in the horizontal state. That is, when the tip discharge cylinder 69 is displaced to the grain non-discharge posture, it functions as a discharge port shutter 69 a and closes the lower opening 66 b that is a discharge port at the delivery terminal end of the grain discharge conveyor 8.

  Among the discharge port edges of the discharge auger 14 in the grain discharge conveyor 8, the discharge port edge (lower opening 66 b edge) on the upper side of the grain discharge of the guide cylinder 66 is as shown in FIGS. 6 to 8. A support shaft 68 is installed. Of the grain receiving side opening 69 b edge of the tip discharge cylinder 69, the grain receiving side opening 69 b edge in the vicinity of the discharge shutter 69 a is pivotable to the guide cylinder 66 via the support shaft 68. It is supported. When the lower opening 66b is closed by the outlet shutter 69a, the edge of the grain discharge opening 69c of the tip discharge cylinder 69 from the guide cylinder 66 in the grain discharge direction of the discharge auger 14 of the grain discharge conveyor 8 is shown. Is configured to protrude. A soft resin cylindrical body 74 is connected to the edge of the grain release opening 69 c via a fastening band 73.

  Further, as described above, the shielding wall 66e is suspended from the lower end of the rear end of the side wall of the guide cylinder 66, and the pre-occlusion side wall 66c is provided at the front end of the guide cylinder 66. The upper end corner of the side wall 66c is cut into an inclined shape to form an inclined receiving plate 66g. Further, the upper side wall of the rear end opening of the tip discharge cylinder 69 is inclined downward to form an inclined wall 69d, and when the guide cylinder 66 is rotated downward about the support shaft 68, it is not closed. The upper end corner of the side wall 66c is in contact with the inclined receiving plate 66g to restrict the rotation range of the guide cylinder 66.

  Accordingly, as shown in FIGS. 6 and 8, in the extending direction of the discharge auger 14 disposed in the guide cylinder 66 with a part or all of the guide cylinder 66 fitted in the tip discharge cylinder 69. The grain discharge opening 69c of the tip discharge cylinder 69 is configured to be displaceable. That is, when the tip discharge cylinder 69 is supported in the grain non-discharge posture, in other words, when the lower opening 66b is closed by the discharge port shutter 69a, the entire guide cylinder 66 is attached to the tip discharge cylinder 69. It is included (see FIG. 6). As a result, when the tip discharge cylinder 69 is supported in the grain non-discharge posture, the length of the tip discharge cylinder 69 protruding in the extending direction of the discharge auger 14 can be formed short.

  On the other hand, when the tip discharge cylinder 69 is supported in the grain discharge posture, in other words, when the discharge port shutter 69a moves backward from the closed position of the lower opening 66b and the lower opening 66b is opened, The grain receiving side opening 69b edge of the tip discharge cylinder 69 is fitted to a part of the guide cylinder 66 (lower opening 66b edge) (see FIG. 8). As a result, when the tip discharge cylinder 69 is supported in the grain discharge posture, the length of the tip discharge cylinder 69 protruding downward from the guide cylinder 66 can be formed.

  Since the relationship between the opening and closing of the discharge auger 14 tip and the tip discharge cylinder 69 is configured as described above, the delivery terminal side of the discharge auger 14 of the grain discharge conveyor 8 can be easily extended in the grain delivery direction, Further, when the grain is not discharged from the grain tank 7, the opening on the delivery auger 14 delivery end side of the grain discharge conveyor 8 can be easily closed, for example, opened downward during the harvesting operation (when the grain is not discharged). By closing the lower opening 66b outlet of the guide cylinder 66 with the outlet shutter 69a, residual grain can be prevented from leaking from the outlet auger 14 outlet of the grain outlet conveyor 8. It is possible to prevent mice and the like from entering the discharge auger 14 from the discharge port side of the discharge auger 14 of the grain discharge conveyor 8 in the storage state for a long time.

  Further, as shown in FIGS. 6 to 8, a support shaft 68 is installed on the discharge port edge of the guide cylinder 66 among the discharge port edges of the grain discharge conveyor 8, and the grain discharge at the tip of the tip discharge tube 69 is performed. The opening 69c is configured to rotate about the support shaft 68, and in the extending direction of the axis of the discharge auger 14 of the grain discharge conveyor 8 (grain delivery direction), the rotation range of the tip discharge cylinder 69 is as follows. Can be set in the range of 0 degrees to 125 degrees. That is, a large discharge angle can be set between the forward discharge angle of the tip discharge tube 69 and the backward discharge angle of the tip discharge tube 69 around the release direction of the kernel of 90 degrees directly downward. It makes it possible to improve the grain discharge workability to the loading platform or container.

[4. (Opening / closing structure of tip discharge tube 69)
Next, with reference to FIGS. 6 and 7, an opening / closing structure in which the tip discharge cylinder 69 rotates around the support shaft 68 to open and close the tip of the discharge auger 14 will be described. That is, as shown in FIG. 6, the discharge cylinder driving electric motor 70 is fastened to the right outer surface of the front discharge auger cylinder 15a by the bolt 81, and the right outer surface of the front discharge auger cylinder 15a is fan-shaped. The open / close gear 82 is rotatably supported via a gear support shaft 83, and the open / close gear 82 is engaged with the output shaft 84 of the discharge cylinder driving electric motor 70 via an 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 a turnbuckle is connected to an opening / closing link 88 provided on the support shaft 68. The tip discharge cylinder 69 is configured to open and close by forward / reverse operation of the discharge cylinder driving electric motor 70.

  As described above, the interlock between the tip discharge cylinder 69 and the discharge cylinder driving electric motor 70 includes various components such as the output shaft 84, the output gear 85, the opening / closing gear 82, the rod 86 with the turnbuckle, and the opening / closing link 88. A mechanism R is interposed.

  As shown in FIGS. 7 and 11, as devices for operating the discharge auger 14 and the tip discharge cylinder 69, a driving side opening / closing switch 91, a timer setting device 92, a mode switching switch 93 provided in the driving unit 10, A front end side opening / closing switch 94 provided at the sending end portion of the grain discharge conveyor 8 and a grain discharge controller 95 formed by a computer are provided. The grain discharge controller 95 is connected to the operation side opening / closing switch 91, the timer setting device 92, the mode changeover switch 93, and the tip side opening / closing switch 94, and the grain discharge controller 95 is driven to discharge cylinders. The output electric motor 70 is output-connected, and the discharge cylinder driving electric motor 70 is rotated forward or backward by the operation of the operation side opening / closing switch 91 or the front end side opening / closing switch 94. In other words, the discharge tube driving electric motor 70 is rotated forward or backward for the time set by the timer setting unit 92. As described above, by operating the mode changeover switch 93, the discharge cylinder driving electric motor 70 is rotated forward or backward to stop the leading end discharge cylinder 69 at a predetermined position in a predetermined posture, or the discharge cylinder driving electric motor 70 is operated. The tip discharge cylinder 69 is configured to reciprocate (oscillate) within a predetermined range (within the grain discharge range) through repeated forward or reverse rotation.

  Since the tip discharge cylinder 69 in the embodiment of the present invention is configured as described above, the tip discharge cylinder 69 can be stored compactly in the extending direction of the grain discharge conveyor 8 (the grain delivery direction), and the tip discharge can be performed. The folding vertical dimension of the cylinder 69, that is, the dimension in which the lower surface side of the tip discharge cylinder 69 protrudes on the lower surface side of the discharge auger 14 serving as the grain discharge conveyor 8 in the accommodated state of the tip discharge cylinder 69 can be formed small. 5 can prevent the lower surface side of the tip discharge cylinder 69 from coming into contact with the upper surface side cover, etc., and the upper surface side cover of the threshing device 5 can be stored close to the discharge auger 14 of the grain discharge conveyor 8, and further combined. Since the vertical dimension of 100 can be formed compactly, the workability and the storage workability can be improved.

[5. Friction mechanism F in interlocking mechanism R]
As described above, the interlocking mechanism R made up of various constituent members is interposed between the leading end discharge cylinder 69 and the discharge cylinder driving electric motor 70. The motor 70 is configured to transmit opening / closing power to the tip discharge cylinder 69 via an output gear 85, an opening / closing gear 82, a rod 86 with a turnbuckle, an opening / closing link 88, and a support shaft 68.

  The feature of the present invention is that a friction mechanism F is interposed between the open / close gear 82 and the rod 86 with a turnbuckle in the power transmission process of the interlocking mechanism R.

  That is, the friction mechanism F is composed of a multi-plate clutch. Specifically, the distal end of the long plate-like interlocking link 82 ′ is connected to the base end of the rod 86 via the pin shaft 87, and By pivotally supporting the rear end of the interlock link 82 ′ on the gear support shaft 83 of the open / close gear 82, the interlock link 82 ′ is interposed between the pin shaft 87 and the gear support shaft 83.

  Further, the open / close gear 82 is configured to be rotatable about the gear support shaft 83, and the support shaft portion around the gear support shaft 83 of the interlocking link 82 ′ and the support shaft around the gear support shaft 83 of the open / close gear 82. A friction mechanism F is interposed between the portions.

  As shown in FIG. 9, the friction mechanism F uses the gear support shaft 83 as a support mechanism to abut the two friction plates 801 against the open / close gear 82, and holds the interlocking link 82 ′ between the two friction plates 801. The two pressing plates 802 are disposed outside the friction plate 801 in contact with the interlocking link 82 ′, and a disc spring 803 is interposed between the two pressing plates 802, so that the outermost pressing plate 802 is disposed. On the outside, a nut 804 is screwed onto the end of the gear support shaft 83.

  When the nut 804 is screwed, the biasing force of the disc spring 803 brings the open / close gear 82 and the interlocking link 82 ′ into a pressure-bonded state via the friction plate 801. Accordingly, the open / close gear 82 that receives the rotational power from the output shaft 84 of the discharge cylinder driving electric motor 70 transmits the rotational force to the interlocking link 82 ′ via the frictional resistance of the friction plate 801 in the crimped state, and the interlocking link 82. Rotational power is transmitted from 'to the tip discharge cylinder 69 via the interlocking mechanism R.

  In particular, the diameter of the output gear 85 provided on the output shaft 84 from the discharge cylinder driving electric motor 70 is made smaller than the diameter of the open / close gear 82 meshed therewith, so the difference in rotational stress between the two gears 85, 82. The output gear 85 is small, and the open / close gear 82 is large.

  That is, the output gear 85 from the discharge cylinder driving electric motor 70 can rotate the opening / closing gear 82 with a small rotational force f1 and transmit the rotational force to the interlocking link 82 'via the friction mechanism F.

  On the other hand, the power transmitted from the opposite direction, that is, the power transmitted from the interlocking link 82 ′ to the open / close gear 82 via the friction mechanism F and transmitted from the open / close gear 82 to the output gear 85 requires a large rotational force f 2. .

  That is, by making the frictional stress f of the friction mechanism F larger than f1 and smaller than f2, the power from the output gear 85 to the open / close gear 82, the friction mechanism F, and the interlocking link 82 'is small rotational force. But it is communicated well. On the other hand, when an impulsive stress greater than or equal to f2 from the tip discharge cylinder 69 is applied to the interlock link 82 ', the friction mechanism F causes the friction plate 801 to slide because the friction stress f is smaller than f2. Thus, power transmission between the interlocking link 82 ′ and the opening / closing gear 82 is cut off.

  Accordingly, even if an object or cereal is brought into contact with the tip discharge cylinder 69 and an inadvertent load is applied to the tip discharge cylinder 69, this load is absorbed by the friction mechanism F interposed in the middle of the interlocking mechanism R and output. Transmission from the gear 85 and the output shaft 84 to the discharge cylinder driving electric motor 70 is prevented, and abnormal load transmission to the discharge cylinder driving electric motor 70 can be prevented, and the safety of the interlocking mechanism can be improved. .

  When the tip discharge cylinder 69 is temporarily deformed and rotated by an impact, the rotational power is absorbed by the friction mechanism F as described above, but the deformed and rotated tip discharge cylinder 69 is manually restored by the operator. By restoring to the position, the subsequent automatic operation control and manual operation control will not be hindered.

[6. About the operation panel Y]
The operation panel Y of the operation unit 10 and the operation panel Y disposed near the terminal end of the grain discharge conveyor 8 or made portable are shown in FIG. 10 in three stages: an upper stage, a middle stage, and a lower stage. They are divided, and switches are appropriately arranged for each.

  The upper part of each operation panel has operation switches for auto-set and auto-return of the discharge auger 14, that is, automatic operation. As shown in FIG. 10, the automatic storage switch Y11 (“front” display button) is arranged at the upper level of the upper stage, and the automatic right turn switch Y12 (“right” display button) is located in the upper stage. The automatic rear turning switch Y13 ("rear" display button) is arranged in the lower part of the upper stage. At the lowest position, an auger clutch switch Y14 ("clutch" display button) for operating the auger clutch 25 to be engaged is provided.

  The middle part of each operation panel has operation switches related to turning or raising / lowering by manual operation of the discharge auger 14. As shown in FIG. 10, at the center of the middle stage, as shown in FIG. 10, the upper switch Y21 (“up” display button) is located at the upper position, the left turn switch Y22 (“left” display button) and the right turn switch Y23 are located at the middle position. ("Right" display button), a lower switch Y24 ("Down" display button) is disposed below.

  The lower part of each operation panel has operation switches for opening and closing the tip discharge cylinder 69. As shown in FIG. 10, an open switch Y31 (“set” display button) is arranged on the left side, and a close switch Y32 (“return” display button) is arranged on the right side, as shown in FIG.

  Here, first, the operation of the discharge auger 14 and the tip discharge cylinder 69 by manual operation will be described.

  First, the manual displacement of the discharge auger 14 and the tip discharge cylinder 69 to the grain discharge position will be described. By pushing the raising switch Y21, the discharge auger 14 rises from the auger stand 18 of the machine body ceiling portion 9 to an angle of 45 ° elevation.

  Next, for example, when the right turn switch Y <b> 23 is pressed, the discharge auger 14 that has risen to an angle of elevation of 45 degrees turns right and is displaced to the right side of the traveling machine body 1.

  Then, after confirming that the discharge auger 14 has been displaced above the truck bed or container placed on the right side of the traveling machine body 1 in order to catch the grains discharged from the grain tank 7 of the combine, that is, at the discharge position, By pushing the open switch Y31 for operating the rotation of the discharge tube 69, the tip discharge tube 69 is rotated and is displaced downward, that is, to a position where the inclination angle is 90 degrees. While the tip discharge cylinder 69 is rotating between 0 and 90 degrees, pressing the close switch Y32 for operating the rotation of the tip discharge cylinder 69 causes the tip discharge cylinder 69 to move from the inclination angle of 0 degrees. It can be stopped at a desired position between 90 degrees.

  In order to further adjust the displacement position of the tip discharge cylinder 69, the tip discharge cylinder 69 is further rotated to a desired tilt angle by pressing the open switch Y31 again or pressing the close switch Y32. For example, by pressing the open switch Y31 when the tip discharge cylinder 69 is at a tilt angle of 90 degrees, the tip discharge cylinder 69 can be displaced between a tilt angle of 90 degrees and 125 degrees. Conversely, by pressing the close switch Y32 when the tip discharge tube 69 is at a tilt angle of 90 degrees, the tip discharge tube 69 can be displaced to a desired position between a tilt angle of 65 degrees and 90 degrees. .

  Note that the auger clutch switch Y14 cannot be turned on when the tip discharge cylinder 69 is at a position between the tilt angle of 0 to 65 degrees or exceeding the tilt angle of 125 degrees. Therefore, the auger clutch 25 interlocked with the discharge auger 14 is not connected.

  Further, when the leading end discharge cylinder 69 is at a tilt angle of 65 degrees to 125 degrees, the auger clutch switch Y14 can be turned on. By pushing the auger clutch switch Y14, the auger clutch 25 is engaged, The grain discharge conveyor 8 is operated, and the grains stored in the glen tank 7 are discharged to a truck bed, a container or the like outside the machine body. By pushing the auger clutch switch Y14 again after the grain is discharged, the auger clutch 25 is disconnected and the operation of the grain discharging conveyor 8 is stopped.

  Next, the displacement to the storage position of the discharge auger 14 and the tip discharge cylinder 69 by manual operation will be described. For example, when the discharge auger 14 is on the right side of the traveling machine body 1, pressing the left turn switch Y22 causes the discharge auger 14 to turn left to the position above the position of the auger stand 18 provided on the machine body ceiling 9. Displace. At this time, the angle of elevation of the discharge auger 14 and the inclination angle of the tip discharge cylinder 69 remain unchanged during the grain discharge operation.

  By confirming that the discharge auger 14 has been displaced to the upper position of the auger stand 18, that is, the storage position, and pressing the close switch Y32, the inclination angle is displaced to any position between 65 degrees and 125 degrees. The leading end discharge tube 69 is returned to a horizontal state in which the axis line is the same as that of the discharge auger 14, that is, a position at an inclination angle of 0 degrees.

  Further, when the lowering switch Y24 is pressed, the discharge auger 14 is lowered and placed on the auger stand 18.

  Next, the operation of the discharge auger 14 and the tip discharge cylinder 69 by the automatic setting and the automatic return, that is, the automatic operation operation will be described.

  First, autoset will be described. For example, when the automatic right turn switch Y12 is pressed, the discharge auger 14 automatically rises from the auger stand 18 of the airframe ceiling 9 to an angle of 45 degrees and by turning right, Displace to the right. When the automatic rear turning switch Y13 is pressed, the discharge auger 14 is displaced to the rear side of the traveling machine body 1.

  Then, the tip discharge cylinder 69 is automatically rotated and is displaced downward, that is, displaced to a position where the inclination angle is 90 degrees. It should be noted that the inclination angle can be stopped at a desired position between 65 degrees and 90 degrees by pressing the close switch Y32.

  Then, by pushing the auger clutch switch Y14, the auger clutch 25 is engaged to operate the grain discharge conveyor 8, and the grain stored in the glen tank 7 is discharged to a truck bed, a container or the like outside the machine body. By pushing the auger clutch switch Y14 again after the grain is discharged, the auger clutch 25 is disconnected and the operation of the grain discharging conveyor 8 is stopped.

  Next, auto return will be described. After the grain has been discharged, when the automatic storage switch Y11 provided on the upper stage of the operation panel Y is pressed, the discharge auger 14 is automatically displaced to a position with an elevation angle of 45 degrees, and the right side of the traveling machine body 1 It is automatically turned and displaced from the rear displacement position to the position above the position of the auger stand 18 provided on the airframe ceiling portion 9, that is, the storage position. At this time, the inclination angle of the tip discharge cylinder 69 remains unchanged during the grain discharging operation.

  When the automatic storage switch Y11 is pressed without pressing the auger clutch switch Y14 again, that is, when the automatic storage switch Y11 is pressed while the auger clutch 25 is operating, the auger clutch 25 is automatically turned on. After being cut, the discharge auger 14 is automatically displaced to a position with an elevation angle of 45 degrees, and is stored above the position of the auger stand 18 provided on the ceiling 9 of the aircraft body from the displacement position on the right side or the rear side of the traveling body 1. Automatically swivel to position.

  After the discharge auger 14 returns to the storage position, the tip discharge cylinder 69 automatically rotates and is displaced to a horizontal state in which the axis line is the same as the discharge auger 14, that is, a position with an inclination angle of 0 degrees. Then, after the tip discharge cylinder 69 returns to the horizontal position, the discharge auger 14 descends and is placed and stored on the auger stand 18.

As described above, the operation panel Y is configured as described above, and various operations of the tip discharge cylinder 69 and the discharge auger 14 by the operation panel Y are as described above.

  The operation panel Y is fixed to the driver's seat 29 and connected to various actuators via wiring so that the operator can operate from the driver's seat 29. It may be used as

  In other words, various actuators can be operated from the operation panel Y via radio.

  Such a remote controller type operation panel Y is installed at a predetermined position of the driver's seat 29, or is carried by an operator as needed to perform the vertical rotation operation of the tip discharge cylinder 69 especially at the grain discharge site. It is composed.

  The remote controller type operation panel Y has an infrared transmitter, and receives infrared rays from the transmitter by operating the various operation switches by a receiver provided on the operation switch of the discharge cylinder driving electric motor 70. Thus, the operation switch of the electric motor can be turned on and off.

[7. About grain emission control)
The grain discharge control of the discharge cylinder driving electric motor 70 (see FIG. 11) is executed as follows. That is, when the timer set value of the timer setting unit 92 is read, the operation side opening / closing switch 91 of the operation panel Y is turned on by the operator of the operation unit 10, and the timer setting is performed when the discharge tube driving electric motor 70 rotates forward. The discharge cylinder driving electric motor 70 rotates forward for a set time based on the timer set value of the container 92. As a result, the tip discharge cylinder 69 moves from the closed position A to the diagonally forward position B as shown in FIG. The grain is discharged from the tip discharge cylinder 69 toward the front obliquely in the grain feeding direction of the grain discharge conveyor 8. The grain discharge control of the discharge cylinder driving electric motor 70 is executed in a state where the tip discharge cylinder 69 is supported above a truck bed or a container (not shown).

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

  Further, when the discharge cylinder driving electric motor 70 is rotated forward again by the ON operation of the operation side opening / closing switch 91, the discharge cylinder driving electric motor 70 is further corrected for the set time based on the timer set value of the timer setting unit 92. The tip discharge cylinder 69 moves from the downward position C to the diagonally backward position D, and the grain is discharged from the tip discharge cylinder 69 in the grain feeding direction of the grain discharge conveyor 8 toward the diagonally backward direction.

  That is, the leading end discharge cylinder 69 shifts from the closed position A to the diagonally forward position B and from the diagonally forward position B to the downward position C depending on the number of times the operation side opening / closing switch 91 is turned on to open the discharge cylinder driving electric motor 70. By shifting and moving from the downward position C to the oblique rear position D, the grain is discharged from the tip discharge cylinder 69 so as to be dispersed in a wide range.

  On the other hand, when the discharge cylinder driving electric motor 70 rotates reversely by turning on the driving side opening / closing switch 91, the discharge cylinder driving electric motor 70 performs reverse rotation operation for a set time based on the timer set value of the timer setting unit 92. Then, the tip discharge cylinder 69 moves from the oblique rear position D to the downward position C. Further, when the discharge cylinder driving electric motor 70 rotates reversely again by turning on the operation side opening / closing switch 91, the discharge cylinder driving electric motor 70 is further reversed by the set time based on the timer set value of the timer setting unit 92. The tip discharge cylinder 69 moves from the downward position C to the oblique front position B by rotating. Further, when the discharge cylinder driving electric motor 70 rotates reversely again by turning on the operation side opening / closing switch 91, the discharge cylinder driving electric motor 70 reverses again for a set time based on the timer set value of the timer setting unit 92. It rotates, the tip 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 operation side open / close switch 91, the ON operation of the distal end side open / close switch 94 causes the discharge cylinder driving electric motor 70 to rotate forward and discharge for a set time based on the timer set value of the timer setter 92. When the cylinder driving electric motor 70 rotates forward, the tip discharge cylinder 69 moves from the closed position A to the diagonally forward position B, shifts from the diagonally forward position B to the downward position C, or diagonally from the downward position C. After moving to the rear position D, the grain is discharged from the tip discharge cylinder 69 so as to be dispersed in a wide range. In addition, when the discharge cylinder driving electric motor 70 rotates in the reverse direction and the discharge cylinder driving electric motor 70 rotates in the reverse direction for a set time based on the timer setting value of the timer setting unit 92, the leading end discharge cylinder 69 is positioned obliquely backward. From D to the downward position C, from the downward position C to the diagonally forward position B, or from the diagonally forward position B to the closed position A, the grain discharging operation is completed.

  Further, when the driving side opening / closing switch 91 and the mode changeover switch 93 are turned on, the forward rotation and the reverse rotation of the discharge tube driving electric motor 70 are continuously repeated. That is, the tip discharge cylinder 69 swings so as to reciprocate between the diagonally forward position B and the diagonally backward position D, and the grains from the distal discharge cylinder 69 are spread over a wide range inside a truck bed or container (not shown). It is discharged so as to be separated.

  As shown in FIGS. 6 to 8, the grain discharge operating body is formed by the discharge cylinder driving electric motor 70, and the opening / closing operation position of the tip discharge cylinder 69 is set according to the operation time of the discharge cylinder driving electric motor 70, The tip discharge cylinder 69 is configured to be openable and closable by the discharge cylinder driving electric motor 70. By controlling the opening / closing angle of the tip discharge cylinder 69 according to the timer set value in this way, it is not necessary to detect the opening / closing position of the tip discharge cylinder 69 to detect the rotation angle of the tip discharge cylinder 69, and the tip discharge A limit switch for detecting the open / close position of the cylinder 69 and a harness as a switch wiring facility are not required, and the control structure of the discharge cylinder driving electric motor 70 for controlling the rotational position of the tip discharge cylinder 69 can be simplified. Further, the number of installed harnesses and the like can be reduced, and the assembly workability and maintenance workability of the discharge tube driving electric motor 70 can be improved.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims. It can be changed.

DESCRIPTION OF SYMBOLS 1 Traveling machine body 3 Cutting device 5 Threshing device 7 Glen tank 8 Grain discharge conveyor 9 Machine body ceiling part 14 Discharge auger 20 Engine 25 Auger clutch 66 Guide cylinder 68 Support shaft 69 Tip discharge cylinder 69a Discharge port shutter 70 Electric drive for discharge cylinder drive motor

Claims (3)

Traveling aircraft,
Reaping device and threshing device;
A Glen tank for storing the grains threshed by the threshing device;
In the combine equipped with a discharge auger that communicates with the Glen tank and discharges the stored grains to the outside of the machine,
A tip discharge tube is rotatably connected to the end portion of the auger tube of the discharge auger via a support shaft, and is interlocked between the output shaft from the electric motor for rotating the tip discharge tube and the tip discharge tube. It is configured to open and close the end opening of the discharge auger by rotating the tip discharge cylinder up and down by the mechanism, and by inserting a friction mechanism at the rotating part in the interlocking mechanism of the tip discharge cylinder, The combine is characterized in that it is configured to absorb the load on the tip discharge cylinder from the top.   The combiner according to claim 1, wherein the friction mechanism is interposed between an open / close gear linked to the output shaft of the electric motor and a rod base end linked to the support shaft of the tip discharge cylinder. .   The opening and closing gear interlocked with the output portion of the driving portion and the opening and closing gear meshing with the output portion is configured to be rotatable via a gear support shaft, with the rotating radius of the opening and closing gear meshing with the output portion larger than the rotating radius of the output portion of the driving portion. The base end of the interlocking link is pivotally supported on the gear support shaft, and the tip of the interlocking link is connected to the rod base end interlockingly connected to the tip discharge cylinder via the pin shaft. The combine according to claim 2, wherein a multi-plate clutch as a friction mechanism with a gear support shaft as an axis is interposed therebetween.

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