JP3589155B2 - Work vehicle grain discharger - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a grain discharging device such as a combine or a working vehicle.
[0002]
[Prior art]
2. Description of the Related Art In a conventional grain discharge device such as a combine or a working vehicle, there is a structure in which a lid is provided at a grain discharge port of a horizontal auger.
[0003]
[Problems to be solved by the invention]
The above-described work vehicle grain discharging device has the following disadvantages.
When discharging the grains in the Glen tank, the lid provided at the grain discharge port of the horizontal auger had to be opened.
[0004]
The present invention is intended to solve such a problem.
[0005]
[Means for Solving the Problems]
A grain discharging device for a work vehicle according to the present invention solves the above-described problem, and has the following configuration.
[0006]
Sunawa Chi, on the chassis 2 having a run line apparatus 1, the grain tank 3 for temporarily reserving the grain, the vertical auger 4 and the horizontal auger 5 for discharging the grain which has been temporarily reserving at the grain tank 3 A work vehicle provided with a grain discharging device 6 comprising: a spiral portion 5b in the horizontal auger 5; a rubber portion 31 is attached to a spiral near the grain discharging port 7 of the horizontal auger 5; The rubber portion 31 is configured to be in contact with the inner peripheral surface of the horizontal auger 5 to provide a grain discharging device for a working vehicle.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
1 and 2 show a combine which is an agricultural machine embodying an embodiment of the present invention.
In front of the chassis 2 having the traveling device 1, a reaper 9 and a supply and transport device 10 are provided. The cutting device 9 includes a weeding tool 11 for weeding the planted grain culm, a raising case 12 for causing the planted grain culm, a cutting blade 13 for cutting the planted grain culm, and a cutting blade 13 for cutting. There is provided a stock transfer device 14 for holding the harvested culm and transporting it backward.
Behind the stock carrier 14, there is provided a supply carrier 10 for taking over and transporting the grain stems conveyed from the stock carrier 14.
[0008]
The reaper 9 is supported by a reaper supporting frame 16 that moves up and down about a fulcrum above the traveling transmission device 15 at a substantially left and right intermediate portion. It moves up and down together with.
Above the undercarriage 2, a threshing device 18 having a feed chain 17 for taking over and transporting the grain culm conveyed from the supply and transport device 10, and a Glen for temporarily storing the kernels threshed and sorted by the threshing device 18. The tank 3 and an operation unit 19 for performing various operations of the combine are mounted. Behind the threshing device 18, there are provided a culm chain 20 for taking over and carrying the culm conveyed from the feed chain 17, and a cutter device 21 for cutting the culm below the culm chain 20. . Further, instead of the cutter device 21 of this embodiment, for example, another working machine such as a knotter for binding the culm may be attached.
[0009]
When the amount of grains in the Glen tank 3 becomes full, the grains are discharged from the grain discharge device 6 to the outside of the machine. The grain discharging device 6 includes a vertical auger 4 and a horizontal auger 5. A gear 22 is fixed to the base of the vertical auger 4, and a pinion 23 meshing with the gear 22 and a motor 24 for rotating the pinion 23 are fixed to the machine body. When the motor 24 is rotated, the vertical auger 4 turns left and right.
[0010]
The horizontal auger 5 is provided with a hydraulic cylinder 25 for raising and lowering the horizontal auger 5 between the horizontal auger 5 and the vertical auger 4. The configuration is such that the horizontal auger 5 moves up and down by driving the hydraulic cylinder 25. The vertical auger 4 is configured to be fitted and supported by a transfer cylinder 27 that transfers and transports the grains transported from the lower spiral 26 in the Glen tank 3.
[0011]
When the harvesting operation is performed by moving such a combine forward, the grain stalks planted in the field scene are weeded by the weeding tool 11, raised by the case 12 and raised by the cutting blade 13. Reaped. After that, the paper is conveyed by the stock carrier 14 and taken over by the supply / conveyance apparatus 10. The grain culm that has been taken over by the supply and transport device 10 is further transported backward. Then, the culm is transferred to the feed chain 17 of the threshing device 18 and conveyed rearward, and the culm is threshed and sorted by the threshing device 18.
[0012]
The kernels thus threshed and sorted are conveyed into the Glen tank 3 via the first deep-frying cylinder 28, where they are temporarily stored. When the amount of grains stored in the Glen tank 3 becomes full, the operator is notified by the notification means of the operation unit 19. Then, the operator interrupts the harvesting operation and starts the operation of discharging the grains in the Glen tank 3 to the outside of the machine. The combine is moved to an arbitrary position (position near the truck), the grain discharge device 6 is detached from the auger receiver 6a, and the grain discharge port 7 is moved to a position such as a truck bed. Then, the grain discharge lever 29 of the operation unit 19 is turned on, and the grains in the Glen tank 3 are discharged out of the machine. When the grain discharge in the Glen tank 3 is completed, the grain discharge device 6 is stored again in the auger receiver 6a.
[0013]
Since the grains remain in the horizontal auger 5, when the grain discharging device 6 vibrates due to the traveling of the combine or the like, the grains are spilled from the grain discharging port 7 onto a field or a traveling path. Therefore, the opening and closing means 8 is provided at the grain discharge port 7. Moreover, the opening / closing means 8 is configured to open in connection with the discharge of the grain in the Glen tank 3.
[0014]
Thereby, it is possible to prevent the grains remaining in the horizontal auger 5 from spilling out from the grain discharge port 7. Furthermore, since the opening / closing means 8 is configured to be opened in association with the discharge of grains in the Glen tank 3, the operation of opening the opening / closing means 8 can be omitted, and the operation can be performed efficiently.
[0015]
The opening / closing means 8 includes a plate 8a that moves downward in the grain transport direction due to the transport force of the grains, and a compression spring 8b that is compressed by moving the plate 8a downward. . The plate 8a is provided at the end (point A) of the horizontal auger 5, and a compression spring 8b is provided between the plate 8a and the end surface 5a of the horizontal auger 5 on the lower side of the plate 8a. .
[0016]
When the grain in the Glen tank 3 is conveyed, it comes into contact with the plate 8a. When the conveying force of the kernel overcomes the urging force of the compression spring 8b, the plate 8a moves from the point A to the point B (the point B is slightly different depending on the conveying force), and the kernel is discharged from the kernel outlet 7 to the outside of the machine. Is discharged to As described above, since the opening / closing means 8 includes only the plate 8a and the compression spring 8b, the number of parts is small and the opening / closing means 8 can be inexpensively configured.
[0017]
Next, another embodiment of FIG. 4 will be described.
In the diameter of the spiral 5b in the horizontal auger 5, the spiral diameter D near the grain discharge port 7 is configured to be larger than the spiral diameter d on the better side. That is, the distance of the gap C between the inner surface of the horizontal auger 5 near the grain discharge port 7 and the outer peripheral portion of the spiral 5b is made as close as possible. Specifically, it is configured to have a length (about 2 mm) or less in which a grain cannot pass. Since the vicinity of the grain discharge port 7 of the spiral 5b is close to the bearing portion 30 receiving the spiral 5b, it can be configured because there is little run-out due to rotation of the spiral 5b.
[0018]
Thereby, even if the grain remaining in the horizontal auger 8 is vibrated due to the traveling of the combine or the like, it is possible to prevent the grain from spilling out of the machine.
Next, another embodiment of FIG. 5 will be described.
In the spiral 5 b in the horizontal auger 5, a rubber portion 31 is provided on the spiral near the grain discharge port 7, and the rubber portion 31 is configured to abut on the inner peripheral surface of the horizontal auger 5. The rubber part 31 may be fixed with a screw 32 and a nut 33, or may be attached with an adhesive.
[0019]
Accordingly, it is possible to prevent the grains remaining in the horizontal auger 5 from spilling out of the machine.
Next, another embodiment of FIG. 6 will be described.
At the end of the horizontal auger 5, a grain spill prevention bar 34 is provided. That is, the grain spill prevention bar 34 is provided at a predetermined distance h from the inner peripheral surface of the horizontal auger 5. The predetermined distance h is set to a height at which the grains do not get over even if the grains discharging device 6 vibrates due to running of the combine or the like. Further, the range of the grain spill prevention bar 34 may be within the predetermined range angle θ.
[0020]
Accordingly, it is possible to prevent the grains remaining in the horizontal auger 5 from spilling out of the machine.
Next, another embodiment of FIG. 7 will be described.
The diameter 35 of the inner peripheral surface of the horizontal auger 5 is configured to be reduced to the diameter 36 at the end of the horizontal auger 5. Therefore, at the end of the horizontal auger 5, a height of a predetermined distance h1 from the inner peripheral surface of the horizontal auger 5 is secured. Of course, the predetermined distance h1 is set to a height at which the grains do not climb over even if the grains discharging device 6 vibrates due to the traveling of the combine or the like.
[0021]
Accordingly, it is possible to prevent the grains remaining in the horizontal auger 5 from spilling out of the machine.
Next, another embodiment of FIG. 8 will be described.
A resin tubular member 37 is provided from the end of the horizontal auger 5 to the upper side in the grain transport direction. The distance 38 between the inner peripheral surface of the resinous tubular member 37 and the outer peripheral surface of the spiral 5b is configured to be as close as possible. The distance 38 is a distance at which a grain cannot pass. Further, since the cylindrical member 37 is made of resin, the length of the distance 38 may be substantially zero. Even if the outer peripheral surface of the spiral 5b comes into contact with the resin-made cylindrical member 37, there is no problem since almost no sound is generated.
[0022]
Accordingly, it is possible to prevent the grains remaining in the horizontal auger 5 from spilling out of the machine.
Next, another embodiment of the combine having the above-described configuration will be described with reference to FIG.
[0023]
FIG. 9 shows a plan view of the combine. The P position is a position where the grain discharge device 6 is stored in the auger receiver 6a, and indicates a limit position where the left turn is not executed from the P position. The R position indicates a limit position at which a right turn is not executed from this position. In addition, a safe area is shown between the Q position and the R position. That is, during this time, even if the position of the horizontal auger 5 of the grain discharging device 6 is below the upper limit position, the vertical auger 4 is configured to be able to turn. During this time, there is no problem even if the horizontal auger 5 is lowered, because there is nothing below.
[0024]
A dangerous area is shown between the P position and the Q position. That is, during this time, if the position of the horizontal auger 5 of the grain discharging device 6 is below the upper limit position, the vertical auger 4 is configured not to turn. That is, the vertical auger 4 is configured to be rotatable only when the horizontal auger 5 is at the upper limit position. In the meantime, since the operating section of the combine (the roof of the cabin if equipped with a cabin) and workers are present, such restrictions are provided. Thereby, the horizontal auger 5 can be turned safely.
[0025]
Further, since the upper limit position, the P position, the Q position, and the R position of the lateral auger 5 are detected by a limit switch without using a position sensor, the configuration can be simple and inexpensive.
[0026]
【The invention's effect】
The present invention than was the above structure, grain remaining in the horizontal auger 5 can be prevented from spilling from the grain discharge port 7. At this time, since the rubber portion 31 is in contact with the inner peripheral surface of the horizontal auger 5, it is possible to more reliably prevent spilling of grains.
[Brief description of the drawings]
FIG. 1 is a left side view of a combine. FIG. 2 is a right side view of a combine. FIG. 3 is a sectional view. FIG. 4 is a sectional view. FIG. 5 is a sectional view. FIG. 6 is a sectional view. 8 Cross-sectional view [Fig. 9] Plan view of combine [Explanation of reference numerals]
DESCRIPTION OF SYMBOLS 1 ... Traveling device, 2 ... Undercarriage, 3 ... Glen tank, 4 ... Vertical auger, 5 ... Horizontal auger,
5b: spiral diameter, 6: grain discharging device, 7: grain discharging port, 8: opening / closing means, 8a: plate, 8a: compression spring, 31: rubber portion.

Claims (1)

A grain tank comprising a grain tank 3 for temporarily storing grains on a chassis 2 having a traveling device 1, and a vertical auger 4 and a horizontal auger 5 for discharging grains temporarily stored in the Glen tank 3. In the working vehicle provided with the device 6, a rubber portion 31 is attached to the spiral near the grain discharge port 7 of the horizontal auger 5 in the spiral 5b in the horizontal auger 5, and the rubber portion 31 is A grain discharging device for a working vehicle, wherein the device is configured to abut against an inner peripheral surface of the auger 5.

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