JP2010178657A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester enabling grains to be efficiently unloaded from a tip unloading cylinder till the final stage as possible because the storing operation of the tip unloading cylinder can be started at the final stage of the storing operation of a grain-unloading auger by constituting the tip unloading cylinder so as to start the storing operation of upward turning when the unloading auger is present in a position state at a storing position in unused time and lifted from a ceiling part of a machine body. <P>SOLUTION: The combine harvester regulated so that an end terminal opening part for unloading the grains may be regulated so as to be freely turned, lifted and lowered, and positionally changed by pivotally supporting the base terminal of the unloading auger 14 by the upper part of the ceiling part 9 of the machine body so as to be freely turned, and lifted and lowered, and the unloading auger 14 may be carried and stored by the ceiling part 9 of the machine body in the unused time is constituted so that the tip unloading cylinder 69 may be installed in the terminal end part of an unloading auger cylinder 15 of the unloading auger 14 through a spindle so as to be freely turnable, and so that the tip unloading cylinder 69 may start the storing operation of the upward turning of the tip unloading cylinder 69 only when the unloading auger 14 is present at the position state of the storing position at the unused time and lifted from the ceiling part 9 of the machine body. <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 the conventional 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 is not inserted through the discharge cylinder even when the grain is not discharged from the grain tank. Therefore, there is a problem that the grain cannot be prevented 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 discharge tube can be rotated at the tip of the discharge auger around the support shaft in this way, when the discharge auger is not used, If the relationship is not controlled, if the discharge auger is housed and operated while the tip discharge cylinder is rotated downward, the tip discharge cylinder comes into contact with the ceiling of the fuselage and there is a risk of damage.

  Therefore, when shifting from the grain discharge state where the tip opening of the discharge auger is raised and rotated out of the machine to the storage state of the grain discharge auger, the tip discharge cylinder is once rotated and horizontally stored. It can be considered as a general storage procedure that the discharge auger is returned to the ceiling part of the airframe and stored after the state is set.

  However, in the grain discharging operation, it is desirable that the tip discharge cylinder is kept in a grain discharging posture, that is, in a downward rotating state as much as possible. In order to discharge all the required amount of grain from the discharge auger via the tip discharge cylinder, the tip discharge cylinder is left in the grain discharge state until the end, and the storage position of the discharge auger on the ceiling of the fuselage For the first time, it is desired that the tip discharge tube be in the upwardly rotated storage state. Furthermore, when the tip discharge cylinder is returned to the original closed state after the grain discharging operation is completed, the tip of the discharge auger is located outside the fuselage. In doing so, there is a risk of damage due to contact with an object or a human being in the vicinity, or human injury.

  The object of the present invention is to configure the storage operation of the grain discharge auger by configuring the tip discharge cylinder to start the upward rotating storage operation when the discharge auger is in the raised position within the range of the airframe ceiling. Since the storage operation of the tip discharge cylinder can be started at the final stage, it is possible to discharge the grain from the tip discharge cylinder efficiently and as much as possible to the final stage, and at the time of storage operation of the tip discharge cylinder The present invention provides a combine that can prevent physical damage caused by contact with a machine or an operator.

  In order to achieve the object, the combine of the invention according to claim 1 includes a traveling machine body, a harvesting device and a threshing device, a Glen tank that stores grains threshed by the threshing device, and a stored grain that communicates with the Glen tank. A discharge auger for discharging the grains to the outside of the machine, and pivoting the base end of the discharge auger above the fuselage ceiling so as to be able to rotate and move up and down to rotate the terminal opening for discharging the grains. In a combine that can be moved up and down and the discharge auger can be placed and stored on the ceiling of the fuselage when it is not in use, the tip discharge cylinder is connected to the end of the discharge auger cylinder of the discharge auger via a support shaft. Moreover, when the discharge auger is in the raised position within the range of the airframe ceiling, the tip discharge tube is configured to start the upward rotating storage operation.

  According to a second aspect of the present invention, in the combine according to the first aspect, when the discharge auger is in a position raised from the storage position when not in use within the range of the fuselage ceiling, the tip discharge tube is rotated upward. It is configured to start a moving storage operation.

  According to a third aspect of the present invention, in the combine according to the first aspect, the tip discharge tube is located above the ceiling of the fuselage and starts the upward rotating storage operation, and at the same time, the discharge auger is in the storage position when not in use. Returning to the above, a return descent operation that descends from a rising position from the airframe ceiling is started.

  According to a fourth aspect of the present invention, in the combine according to any one of the first to third aspects, the terminal opening of the discharge auger is opened by rotating the tip discharge cylinder downward, and the grain It is configured to be capable of discharging, and is configured to store the tip discharge tube by closing the tip discharge tube and to close the terminal opening of the discharge auger.

  According to the first aspect of the present invention, the distal end discharge tube is rotatably connected to the end portion of the discharge auger tube of the discharge auger via the support shaft, and the discharge auger is raised from the ceiling of the machine body. When the discharge auger is in a raised position within the range of the ceiling of the fuselage, the tip discharge cylinder is rotated downward. In order to start the storing operation by rotating the tip discharge cylinder upward in the discharge port open state, it is necessary that the discharge auger is still above the fuselage ceiling and in the raised position. Therefore, unless the discharge auger is positioned above the ceiling of the fuselage, it is impossible to rotate the tip discharge cylinder upward at the grain discharge operation position, and contact with equipment or workers in the vicinity of the position as the rotation is performed. Therefore, it is possible to safely store the tip discharge tube at a position above the ceiling of the fuselage. That is, when the tip discharge cylinder is stored, the discharge auger is positioned on the fuselage ceiling, so that contact between the tip discharge cylinder and the fuselage is prevented during rotation, and damage to the tip discharge cylinder is avoided. There is an effect that can.

  According to the second aspect of the present invention, when the discharge auger is in the position raised from the storage position when not in use within the range of the airframe ceiling, the tip discharge tube starts the upward rotating storage operation. Therefore, it is possible to reliably perform the upward rotation storing operation of the tip discharge tube at the raised position of the discharge auger, especially when the discharge auger is in the raised position from the storage position when not in use. Since the storage operation of the tube is started, the storage operation of the discharge auger and the storage operation of the tip discharge tube can be performed at a recent timing, and there is an effect that the operation can be simplified and the time can be shortened.

  According to the third aspect of the present invention, at the same time as the leading end discharge cylinder is above the fuselage ceiling and starts the upward rotating storage operation, the discharge auger returns to the storage position when not in use and Since it is configured to start the return descent operation that descends from the raised position, the discharge auger returns to the storage position when not in use and starts the return descent operation in time with the storage operation of the tip discharge cylinder Therefore, if the tip discharge cylinder is operated, the discharge auger can also automatically start the storage operation, and the storage operation is simplified within a short time, and the tip discharge cylinder is rotated upward. When the storage unit is stowed, the discharge auger returns and starts the lowering operation above the ceiling of the fuselage, so that the tip discharge cylinder does not come into contact with an object outside the fuselage and the safety of the storage operation of the tip discharge cylinder is secured. There is an effect that can.

  According to the fourth aspect of the present invention, the end opening of the discharge auger is opened by turning the tip discharge cylinder downward to enable grain discharge, and the discharge auger is closed by turning the tip discharge cylinder upward. In addition, since the tip discharge cylinder is also stored, the opening and closing operation of the grain discharge from the discharge auger and the storage operation can be performed simultaneously only by rotating the tip discharge cylinder. In addition, the storage timing of the tip discharge cylinder can be controlled in conjunction with the storage operation with the discharge auger, so that the danger of the tip discharge cylinder projecting downward and coming into contact with the fuselage is prevented as much as possible. It is possible to protect the tip discharge tube, protect the equipment, and ensure the safety of the worker.

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 a figure which shows arrangement | positioning of the various operation switches in an operation panel. It is a flowchart of the 1st relevant control of grain discharge. It is a flowchart of the 2nd relevant control of grain discharge | emission. It is a flowchart of the 3rd relevant control of grain discharge. It is a block diagram which shows the circuit structure of a grain discharge | emission. It is a flowchart of grain discharge control.

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). The threshing device 5 and the grain tank 7 for storing the grain after threshing are mounted in parallel. The threshing device 5 is arranged on the left side in the forward direction of the traveling machine body 1, and the Glen tank is arranged on the right side in the forward direction of the traveling machine body 1 (see 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. . The relationship between the rotation of the tip discharge cylinder 69 and the intermittent operation of the auger clutch 25 described in the section “6” described later is controlled so as to be linked under certain conditions. It is characterized by an interlocking control between the operation of the cylinder 69 in a certain rotation range and the intermittent operation of the auger clutch 25.

  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, the grain discharge structure of the discharge auger 14 in the grain discharge conveyor 8 will be described with reference to FIGS. As shown in FIGS. 6 to 7, 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 7, 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. The discharge auger 14 is provided with an electric motor 70 for driving the discharge cylinder 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 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 7, 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) of the guide cylinder 66 on the upper side of the grain discharge is as shown in FIGS. 6 to 7. 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 7, 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 rearward from the closed position of the lower opening 66b and the lower opening 66b is opened, The edge of the grain receiving side opening 69b of the tip discharge cylinder 69 is fitted on a part of the guide cylinder 66 (the edge of the lower opening 66b) (see FIG. 7). 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 7, 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 FIG. 12, as devices for operating the discharge auger 14 and the tip discharge cylinder 69, an operation side opening / closing switch 91, a timer setting unit 92, a mode changeover switch 93 provided in the operation unit 10, a grain discharge The front end side opening / closing switch 94 provided in the delivery terminal part of the conveyor 8 and the grain discharge controller 95 formed by the 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. About the operation panel Y]
The operation panel Y of the operation unit 10 and the operation panel Y arranged near the terminal end of the grain discharge conveyor 8 or made portable are shown in FIG. 8 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. 8, 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. 8, in the middle of the middle section, as shown in FIG. 8, the upper switch Y <b> 21 (“up” display button) is located at the upper position, the left turn switch Y <b> 22 (“left” display button) and the right turn switch Y <b> 23 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. 8, 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.

  And 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 100, that is, the discharge position, By pushing the open switch Y31 for operating the rotation of the tip discharge cylinder 69, the tip discharge cylinder 69 is rotated and displaced to the position directly below, that is, the 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. However, the operation panel Y is operated by a remote controller (FIG. 8). 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 discharge cylinder driving electric motor 70 can be turned on and off.

[6. Regarding storage control of the discharge auger 14 and the tip discharge cylinder 69]
The grain discharge and storage structure of the discharge auger 14 and the grain discharge and storage structure of the tip discharge cylinder 69 are configured as described above. Therefore, the discharge auger 14 operates the auger turning electric motor 16 after operating the auger raising / lowering hydraulic cylinder 17 and raising the tip obliquely upward at the pivot portion m at the base end when discharging the grain. The tip discharge cylinder 69 that rotates and is continuously provided at the tip is displaced upward such as a truck bed outside the machine body. Thereafter, the tip discharge cylinder 69 is rotated downward to a predetermined angle facing downward, and the grain is discharged.

  When the grain discharge is completed and the discharge auger 14 is placed and stored above the fuselage ceiling portion 9, first, the base of the discharge auger 14 is rotated in the downward rotation state while the tip discharge cylinder 69 is being discharged. The auger turning electric motor 16 is actuated from the pivot portion m at the end to be rotated to the original storage position of the airframe ceiling portion 9. In this state, the tip of the discharge auger 14, that is, the tip discharge cylinder 69 is at an upper position of the fuselage ceiling 9, and the tip discharge cylinder 69 is still in the downward rotation state.

  In this way, when the discharge auger 14 is in a position raised from the fuselage ceiling 9 in the storage position when not in use, the storage operation can be performed by turning the tip discharge cylinder 69 upward by operating the operation panel Y. it can. Alternatively, in the automatic operation, the leading end discharge cylinder 69 performs the storage operation by rotating upward only when the discharge auger 14 comes to the raised position at the storage position.

  As described above, the gist of the present invention is to perform related control between the displacement operation of the discharge auger 14 and the storage operation of the tip discharge tube 69. That is, when the tip discharge cylinder 69 performs the storage operation, the discharge auger 14 is basically located within the range of the airframe ceiling 9 and the tip discharge cylinder 69 is stored in the horizontal state. By controlling in this way, it is possible to prevent the tip discharge cylinder 69 from coming into contact with objects and workers outside the range of the ceiling part 9 and prevent damage to the objects and workers. Or preventing the failure or damage of the tip discharge cylinder 69 itself.

  Hereinafter, based on the flowcharts shown in FIGS. 9 to 11, related control between the displacement operation of the discharge auger 14 and the storage operation of the tip discharge tube 69 will be described.

(1) First related control When the discharge auger 14 is in the raised position within the range of the fuselage ceiling portion 9, the tip discharge cylinder 69 starts an upward rotating storage operation. That is, it is a condition that the discharge auger 14 is located within the range of the airframe ceiling portion 9 as a condition for the front discharge cylinder 69 to start the storing operation.

  Therefore, when the grain discharge is finished and the tip discharge cylinder 69 is stored, the discharge is usually performed by turning on the operation side opening / closing switch 91, that is, by operating the close switch Y32 in the lower part of the operation panel Y. The cylinder driving electric motor 70 is reversely rotated to displace the tip discharge cylinder 69 to the closed position, that is, the storage position.

  However, in this related control, the discharge auger 14 is first operated. That is, on the operation panel Y of the operation unit 10, the left turn switch Y22 among the operation switches arranged in the middle part of the operation panel Y is operated (S1).

  By operating the left turn switch Y22, the auger turning electric motor 16 is operated, and the discharge auger 14 that has been performing the grain discharging work outside the range of the machine body ceiling portion 9 is turned left to turn the machine body ceiling portion 9 It is displaced within the range (S2).

  Then, a potentiometer 96 connected to the auger turning electric motor 16 detects the amount of rotation of the auger turning electric motor 16 and turns the leading end discharge cylinder 69 with a detection signal for detecting the displacement state of the discharge auger 14. This is transmitted to the closed switch Y32 of the discharge cylinder driving electric motor 70 to be executed (S3).

  That is, a detection signal for detecting the displacement state of the discharge auger 14 is sent to the closed switch Y32 for reversing the discharge cylinder driving electric motor 70 for rotating the tip discharge cylinder 69, and the closed switch Y32 can be effectively operated. I am doing so.

  When the closing switch Y32 is operated, the leading end discharge cylinder 69 is stored (S4). Thereafter, by operating the lowering switch Y24 (S5), the discharge auger 14 is lowered onto the fuselage ceiling 9 and stored. (S6).

  Thus, the closing switch Y32 on the operation panel Y for rotating the tip discharge cylinder 69 does not operate unless the displacement state of the tip discharge cylinder 69 on the body ceiling portion 9 is detected. In other words, the closing switch Y32 on the operation panel Y is configured not to drive the discharge cylinder driving electric motor 70 to be closed unless a displacement state of the front discharge cylinder 69 on the airframe ceiling 9 is detected.

(2) Second related control The discharge auger 14 is displaced by the auger turning electric motor 16 to the storage position when it is not used within the range of the ceiling 9 of the machine body. When in the raised position from the storage position, the leading end discharge tube 69 starts the storage operation. In the previous section, the storage operation of the leading end discharge cylinder 69 can be started no matter where the discharge auger 14 is displaced within the range of the airframe ceiling 9. However, in this section, as shown in FIG. Further, when the auger 14 is in the storage position when not in use and is in the raised position (S12), the storage operation of the leading end discharge cylinder 69 is started (S14).

  Accordingly, the left turn switch Y22 of the discharge auger 14 is operated (S11), the amount of rotation of the electric motor 16 for turning the auger is measured by the potentiometer 96, and the discharge auger 14 is displaced to the storage position when not in use on the fuselage ceiling 9. When it is detected (S12), the detection signal is transmitted to the discharge cylinder driving electric motor 70 for rotating the tip discharge cylinder 69, that is, the closing switch Y32 for closing the discharge cylinder driving electric motor 70. To do.

  When a signal indicating the displacement state of the discharge auger 14 is transmitted to the close switch Y32, the close switch Y32 can be effectively operated. By the operation of the close switch Y32 (S13), the leading end discharge tube 69 is rotated horizontally to be in the stored state ( After that, the lowering switch Y24 of the discharge auger 14 is operated (S15), and the discharge auger 14 is lowered and stored (S16).

(3) Third related control Simultaneously with the start of operation of the tip discharge cylinder 69, the discharge auger 14 automatically returns to the storage position when not in use, and at that time, the tip discharge cylinder 69 performs a storage operation, and then discharges. The auger 14 is controlled to descend. When the operation of the close switch Y32 on the operation panel Y is started so as to rotate the tip discharge cylinder 69 to the horizontal state, that is, the storage position state via the discharge cylinder driving electric motor 70 (S21), At the same time, the discharge auger 14 starts to turn to the storage position when not in use by the auger turning electric motor 16 (S22) and reaches the storage position when not in use (S23). At this time, the leading end discharge tube 69 starts the storing operation and rotates horizontally to complete the storing operation (S24). Thereafter, the auger lifting / lowering hydraulic cylinder 17 performs a lowering operation, and the auger lifting / lowering hydraulic cylinder 17 is housed on the machine body ceiling 9 (S25).

  That is, when the closing switch Y32 is operated (S21), a switch operation start signal is transmitted to the left turning switch Y22 of the auger turning electric motor 16 and the lowering switch Y24 of the auger lifting hydraulic cylinder 17, and the switch is turned on and discharged. The auger 14 starts to turn up to the storage position above the range of the machine body ceiling 9 (S22), and is lowered to enter the storage state (S25).

  Since the discharge auger 14 is swung (S22) and lowered (S25) simultaneously with the storing operation start operation (S21) of the front discharge cylinder 69, at least the front discharge cylinder 69 is stored after the discharge auger 14 is turned. When the operation is started and the discharge auger 14 comes to the upper position of the storage position (S23), the storage of the tip discharge cylinder 69 is started and the storage is completed (S24).

[7. About grain emission control)
As shown in FIG. 13, the grain discharge control of the discharge cylinder driving electric motor 70 is executed as follows. That is, the timer set value of the timer setter 92 is read (S41), the operation side opening / closing switch 91 of the operation panel Y is turned on by the operator of the operation unit 10 (S42), and the discharge cylinder driving electric motor 70 is rotated forward. When this is done, the discharge cylinder driving electric motor 70 rotates forward for a set time based on the timer set value of the timer setter 92. As a result, as shown in FIG. It moves to the front position B, and 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 is rotated forward again by turning on the operation side opening / closing switch 91 (S43), the discharge cylinder driving electric motor 70 is set for a set time based on the timer set value of the timer setting unit 92. Is further rotated forward, 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. The

  Further, when the discharge cylinder driving electric motor 70 rotates forward again by turning on the operation side opening / closing switch 91 (S43), the discharge cylinder driving electric motor 70 is set for a set time based on the timer set value of the timer setting unit 92. Further forwardly rotates, the tip discharge cylinder 69 moves from the downward position C to the oblique rear 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 rearward direction. The

  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 operation side opening / closing switch 91 (S45), the discharge cylinder driving electric motor 70 is set for a set time based on the timer set value of the timer setting unit 92. Reverse rotation operation | movement is carried out and the front-end | tip discharge | emission pipe | tube 69 transfers to the downward position C from the diagonal back position D. As shown in FIG. 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 (S46), 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 driving side opening / closing switch 91, the ON operation of the leading end side opening / closing switch 94 (S49) causes the discharge tube driving electric motor 70 to rotate forward (S50), and the timer set value of the timer setting unit 92 is set. When the discharge cylinder driving electric motor 70 is rotated forward for a set time based on (S51), the tip discharge cylinder 69 moves from the closed position A to the diagonally forward position B, or from the diagonally forward position B to the downward position C. It shifts or shifts from the downward position C to the oblique rear position D, and the grain is discharged from the tip discharge cylinder 69 so as to be dispersed in a wide range. Further, when the discharge cylinder driving electric motor 70 rotates reversely (S52) and the discharge cylinder driving electric motor 70 rotates reversely for a set time based on the timer set value of the timer setter 92 (S53), the tip discharge cylinder 69 shifts from the diagonally rear position D to the downward position C, shifts from the downward position C to the diagonally forward position B, shifts from the diagonally forward position B to the closed position A, and finishes the grain discharging operation.

  Further, when the operation side opening / closing switch 91 and the mode changeover switch 93 are turned on (S47), the forward rotation and the reverse rotation of the discharge cylinder 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.

  Then, the grain discharge cylinder controller 95 detects whether or not the inclination angle due to the rotation of the tip discharge cylinder 69 is other than the allowable inclination angle α (S54). When the inclination angle due to the rotation of the tip discharge cylinder 69 is other than the allowable inclination angle α, the auger clutch 25 is prevented from being connected even if the auger clutch switch Y14 is operated (S55). In this way, the discharged grain of the grain is prevented from scattering in an unscheduled direction.

  As shown in FIGS. 7 and 12 to 13, the grain discharge operation body is formed by the discharge cylinder driving electric motor 70, and the opening / closing operation position of the tip discharge cylinder 69 is determined by 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 (4)

Traveling aircraft,
Reaping device and threshing device;
Glen tank for storing the grains threshed by the threshing device;
It has a discharge auger that communicates with the Glen tank and discharges the stored grains to the outside of the machine, and discharges the grains by pivotally supporting the base end of the discharge auger above the fuselage ceiling so that it can be rotated and raised and lowered. In a combine that allows the end opening to rotate and move up and down freely, and the discharge auger when not in use can be placed and stored on the ceiling of the fuselage,
The tip discharge tube is connected to the end portion of the discharge auger tube via the support shaft so as to be freely rotatable, and the discharge auger is in the raised position within the range of the ceiling of the fuselage. Is configured to start an upwardly rotating storage operation.   2. The front discharge tube is configured to start an upward rotating storage operation when the discharge auger is in a position raised from the storage position when not in use within the range of the ceiling of the fuselage. Combine as described in.   At the same time as the tip discharge tube is above the fuselage ceiling and starts the upward pivoting storage operation, the discharge auger returns to the storage position when not in use and starts the return lowering operation that descends from the rising position from the ceiling The combine according to claim 1, which is configured as described above.   The end opening of the discharge auger tube is opened by turning the tip discharge tube downward to allow the grain to be discharged, and the tip discharge tube is stored by turning the tip discharge tube upward, The combine according to any one of claims 1 to 3, wherein the combiner is configured to close an end opening of the discharge auger tube.

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