Grain discharge device of combine

Abstract

To provide a combine provided with a grain discharge auger which achieves quick transfer work of the grains stored in a grain tank of combine to a grain tank of a truck by allowing automatic discharge preparation of the grain discharge auger regardless of a stopping position of the truck provided with the grain tank by the combine.SOLUTION: A combine grain discharge device can set a movement of a grain discharge port 18 of a grain discharge auger 3 around a machine body by lifting, lowering, and turning the grain discharge auger 3 which discharges the grains in a grain tank 2. The combine grain discharge device is provided with discharge position designation switches 39, 40 which automatically lift, lower, and turn to move by designating a discharge position of the grain discharge port 18 at a remote operation device 52.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a grain discharge device for a combine harvester that cuts culms growing in a farm field, threshes the grains, and harvests them, and that transfers the harvested grains from a grain tank that temporarily stores them to a grain tank mounted on a truck. [Background technology]

[0002] The grain tank mounted on the combine harvester temporarily stores grain harvested from the field. When it is full, the combine approaches a truck parked on the edge of the field and uses a grain discharge auger attached to the combine to transfer and discharge the grain from the grain tank into a grain tank on the truck. The combine then returns to the field to continue harvesting. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-18112 A Summary of the Invention [Problem to be solved by the invention]

[0004] The grain tank of a combine harvester is located at the rear of the machine, and the grain discharge auger, which is erected on top of this grain tank, can rotate 360 ​​degrees on the top of the machine so that the grain discharge position can be set at any position on the front, back, left or right of the combine. However, because a combine harvester has a control unit on the front right of the machine, in order to erect the grain discharge auger, which is stored to the left of the control unit, and move the grain discharge outlet to the front right of the machine, the machine must make a large turn from left to right to avoid the driver, sun visor, cabin, etc. in the control unit, and move it to the front right, which makes it time-consuming to prepare the grain discharge auger for discharge.

[0005] The objective of the present invention is to enable a combine harvester equipped with a grain discharge auger to automatically prepare the grain discharge auger for discharge regardless of the position of a truck carrying a grain tank relative to the combine harvester, thereby enabling the quick transfer of grain accumulated in the grain tank to the grain tank. [Means for solving the problem]

[0006] The above object of the present invention can be achieved by the following technical means.

[0007] The invention of claim 1 is a grain discharge device for a combine harvester that can raise and lower and rotate a grain discharge auger 3 that discharges grains from a grain tank 2 to move and set the grain discharge outlet 18 around the body of the machine, and is characterized in that the operating device 52 is provided with a plurality of discharge position designation switches 39, 40 that designate the discharge position of the grain discharge outlet 18 and that raise and lower and rotate to automatically pass above the steering unit.

[0008] The invention of claim 2 is a grain discharge device for a combine harvester as described in claim 1, characterized in that, when a first discharge position designation switch (39) is turned on, the grain discharge auger (3) turns right after raising and lowering, moves the grain discharge outlet (18) to the right side of the body, and stops at a predetermined position, and when a second discharge position designation switch (40) is turned on, the grain discharge auger (3) turns left after raising and lowering, moves the grain discharge outlet (18) to the left side of the body, and stops at a predetermined position.

[0009] The invention of claim 3 is a grain discharge device for a combine harvester as described in claim 1 or 2, characterized in that a stop / discharge switch (32) is provided in the operating device (52) for stopping the movement of the grain discharge outlet (18) midway to enable grain discharge.

[0010] The invention of claim 4 is a grain discharge device for a combine harvester as described in claim 3, characterized in that a discharge monitoring camera (45) is provided that captures the area below the grain discharge outlet (18) and the image is displayed on a monitor installed in the driver's seat. Effect of the Invention

[0011] In the invention of claim 1, the worker who operates the combine harvester to perform harvesting work automatically moves the grain discharge port 18 of the grain discharge auger 3 to the desired discharge position by simply pressing one of a plurality of discharge position designation switches 39, 40 provided on the operating device 52. This makes it easy to discharge grains because the grain discharge port 18 of the grain discharge auger 3 can be moved automatically passing above the operating unit without the need for the troublesome work of rotating and moving the grain discharge auger 3.

[0012] In the invention of claim 2, when the first discharge position designation switch (39) is turned on, the grain discharge auger (3) turns right after raising and lowering, moves the grain discharge port (18) to the right side of the machine body, and stops at a predetermined position. As a result, the grain discharge auger (3) automatically avoids the control section and passes above the control section, so that the grain discharge port (18) can be moved safely to the right side of the machine body in a short time, improving work efficiency.

[0013] When the second discharge position designation switch (40) is turned on, the grain discharge auger (3) turns left after raising and lowering, moves the grain discharge port (18) to the left side of the machine body, and stops at a specified position. The movement of the grain discharge port (18) to the left side of the machine body is completed in a short time, improving the work efficiency.

[0014] In the invention of claim 3, if an operator notices that the grain discharge outlet (18) has moved too early to the location where the grain should be discharged, such as the bed of a truck or a grain tank, even while the grain discharge outlet 18 is moving, the operator can press the stop / discharge switch 32 to stop the grain discharge outlet 18 at the optimal position and discharge the grain, thereby transferring the grain to the grain tank without spilling it.

[0015] With the invention of claim 4, the operator can check the monitor installed near the driver's seat to make sure that the grain tank is located directly below the grain discharge outlet 18 before starting to transfer the grain, thereby preventing operational errors. [Brief description of the drawings]

[0016] [Figure 1]FIG. 2 is a right side view of the combine harvester according to the embodiment of the present invention. [Diagram 2] FIG. 2 is a side view of the grain tank and grain discharge auger of the combine harvester. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. 2 is a control block diagram of a remote control device for the combine harvester. [Figure 6] The discharge position designation lever of the combine harvester (A) indicates the storage position of the grain discharge auger, and (B) indicates the left side discharge of the grain discharge auger. [Figure 7] This is a plan view of the combine harvester, showing (A) the grain discharge auger in the retracted position and (B) the grain discharge auger in the left-side discharge position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the description of the embodiment, the left and right directions facing the forward movement of the aircraft are referred to as left and right, respectively, and the forward movement direction is referred to as front and the backward movement direction is referred to as rear, but this does not limit the configuration of the present invention.

[0018] As shown in Fig. 1, the combine harvester 1 has a threshing device 10 mounted on a traveling vehicle body 9 equipped with a traveling device composed of crawlers 8 molded from rubber, and a pre-harvest processing device 11 mounted in front of the threshing device 10. A grain tank (storage device) 2 is mounted on the side of the threshing device 10, and a cabin 7 with a control section is mounted in front of the grain tank 2. The control section may be covered with a sun visor to provide shade.

[0019] The planted culms are raked in by the reel 11a and cut by the cutting blade 11b. The cut culms are moved to the left by the auger drum 11c, transported by the elevator 11d, and fed into the threshing device 10 for threshing and sorting.

[0020] The grain tank 2 is configured to store the threshed and sorted grains transported from the threshing device 10 via the first grain lifting device. The discharge spiral 12 is mounted on the bottom of the grain tank 2 as shown in Fig. 2, and the starting end of this discharge spiral 12 is connected to a transmission shaft 13 on the engine E side via an electric spiral clutch 14, and the terminal end is extended to the bottom of the grain lifting tube 15 and connected to the lower end of the grain lifting spiral 16 installed inside.

[0021] 2, the grain discharge auger device 3 is equipped with a first auger tube 3a and a second auger tube 3b, and is provided with a telescopic drive device 51 that extends and retracts the second auger tube 3b by driving a telescopic motor 50, the base of the first auger tube 3a is connected to the top of the grain lifting tube 15 so that it can rotate and rise and fall in the vertical direction, and a grain discharge outlet 18 is opened at the tip of the second auger tube 3b. The grain discharge auger device 3 is configured so that a conveying spiral 19, the start end of which is drivably connected to the grain lifting spiral 16, is installed inside the first auger tube 3a and the second auger tube 3b, and the grains received from the grain lifting tube 15 are conveyed to the grain discharge outlet 18 and discharged to the outside.

[0022] As shown in Figure 2, the lifting control cylinder 20 has its base pivotally attached to the top of the grain lifting tube 15 and its tip attached to a rotating support frame 21 connected to the rotation center of the first auger tube 3a.The lifting control cylinder 20 is configured so that the tip side (grain discharge outlet 18 side) of the grain discharge auger device 3 can be adjusted to rotate up and down by extending and retracting.

[0023] As shown in Fig. 2, the grain lifting tube 15 is rotatably fitted and supported on the upper part of a support tube 22 fixed to the lower part of the grain tank 2, and is configured to be able to rotate integrally with the grain discharge auger device 3 connected to the upper part. The turning control motor 4 and the electromagnetic brake 5 are mounted on a support base 23 as shown in Fig. 2, and are configured to be able to transmit the rotational driving force and the braking force to a drive gear 24 provided on the lower side. The turning gear 25 is fixed to the grain lifting tube 15 on the side of the drive gear 24, and is constantly engaged with the drive gear 24 to transmit the rotational driving force of the turning control motor 4 and the braking force of the electromagnetic brake 5 from the grain lifting tube 15 to the grain discharge auger device 3.

[0024] Next, as shown in Fig. 4, the operation device 52 has the stop lamp 30, discharge / stop switch 26, operation stop switch 31, automatic extension switch 32, automatic auger storage switch 37, left / right / up / down auger manual switch 33, auger extension / retraction manual switch 27, left / right swing manual switch 38, discharge port up / down switch 25', auger right front extension switch 39, auger left front extension switch 40, left front extension position lamp 41, and right front extension position lamp 42 arranged on one side, and sends a control signal from a transmitter 57 to a receiver 58 of the machine control device 49 as shown in Fig. 5. The operation device 52 may be configured in any of the following ways: fixed to the body of the combine harvester, detachable from the body and connected to the body by wire, or detachable from the body and communicating with the machine wirelessly.

[0025] FIG. 3 shows a plan view of the combine harvester. References P0, P1, P2, and P3 indicate the main stopping positions (grain discharge positions) of the grain discharge auger 3. The stopping position P0 indicates the position where the grain discharge auger 3 is stored in the auger receiver 3c, and grain discharge work is not usually performed at this position. Reference P1 is the standard stopping position and the standard grain discharge position. When the automatic extension switch is turned on, it rotates counterclockwise from the stored position P0 to the standard discharge position P1. In the conventional automatic turning, grain is discharged only at the standard discharge position P1, and moreover, it is configured to move to the discharge position by turning left. Furthermore, even when the grain discharge auger 3 is manually turned to the discharge position, it is restricted from turning on the operating unit side.

[0026] In this configuration, a second discharge position P2 and a third discharge position P3 for automatic extension are newly added. In this case, if the device rotates counterclockwise, it takes time to rotate to the second discharge position P2 in particular. Therefore, the device is configured to rotate counterclockwise up to 180 degrees (discharge position PX) and then rotate clockwise up to 180 degrees (discharge position PX). The device may rotate to the discharge position PX either counterclockwise or clockwise, but the counterclockwise rotation does not detour around the cabin, etc., and therefore takes less time to reach the position. If the device detours around the cabin, the device may be configured to rotate faster.

[0027] When the first discharge position designation switch (39) is turned on, the grain discharge auger (3) is raised and lowered from the storage position P0, then rotates to the right (clockwise), so that the grain discharge outlet (18) moves to the right side of the machine body and stops at the second discharge position P2.

[0028] When the second discharge position designation switch (40) is turned on, the grain discharge auger (3) is raised and lowered from the storage position P0 and then rotates left (counterclockwise), so that the grain discharge outlet (18) moves to the left side of the machine body and stops at the third discharge position P3.

[0029] This allows the grain discharge auger 3 to rotate to the target grain discharge position in a short time, improving work efficiency.

[0030] Then, control signals are output from the machine control device 49 to the lifting / lowering control cylinder 20, the swivel control motor 4, the extension motor 50, and the electric spiral clutch 14, and position information of the grain discharge auger device 3 is input to the machine control device 49 from the swivel angle sensor 34, the lifting / lowering angle sensor 35, and the extension sensor 36.

[0031] The automatic extension switch 32 is a switch that automatically controls the lift control cylinder 20, the turning control motor 4, and the telescopic motor 50. When the auger right front extension switch 39 is pressed, the grain discharge port 18 automatically moves to the right front of the machine body to discharge grain into the grain tank of the truck, and when the auger left front extension switch 40 is pressed, the grain discharge port 18 automatically moves to the left front of the machine body to discharge grain into the grain tank of the truck. The auger automatic storage switch 37 operates to automatically return the grain discharge port 18 from the discharge position to the storage position.

[0032] Pressing the operation stop switch 31 while the grain discharge auger 3 is operating cancels automatic control and stops the auger, allowing grain to be discharged from the grain discharge port 18 at that position. The auger extension / retraction manual switch 27, swing manual switch 38, or auger manual switch 33 also allow the operator to move the grain discharge port 18 to a desired discharge position.

[0033] The stop lamp 30 is turned on when the automatic control is stopped, and even if any of the switches are touched accidentally, the grain discharge auger device 3 will not move. The left front extension position lamp 41 and the right front extension position lamp 42 are turned on while the grain discharge port 18 is moving to the target position.

[0034] To discharge the grain, the combine harvester 1 is stopped near a truck stopped on a footpath, and an operator standing near the truck operates the switches of the remote control device 52 to raise, lower, rotate and extend the grain discharge auger device 3, positioning the grain discharge outlet 18 above the grain tank of the truck and discharging the grain.

[0035] Figure 6 shows a grain discharge auger movement command lever 43 provided on a remote control device 52 in place of the auger right front extension switch 39, the auger left front extension switch 40, and the auger automatic storage switch 37, where (A) is a storage command, which results in the (A) state in Figure 6, and (B) is a left side discharge command, which results in the (B) state in Figure 7.

[0036] Although not shown in the figures, if the storage position of the grain discharge auger 3 is indicated on the top surface of the grain tank 2 or if a position indicator pin is provided on the cylindrical surface of the grain discharge auger 3, the position of the grain discharge auger 3 can be easily grasped, and if a flexible protective material is attached to the peripheral surface of the grain discharge auger 3, damage to the grain discharge auger 3 when it rotates can be prevented. [Explanation of symbols]

[0037] 2. Glentank 3 Grain discharge auger 18 Grain outlet 32 Stop / eject switch 39 Auger right front extension switch (discharge position designation switch) 40 Auger left front extension switch (discharge position designation switch) 45 Emissions Monitoring Camera 52 Operation device (remote control device)

Claims

1. A grain discharge device for a combine harvester that can move and set a grain discharge outlet (18) around the body of the machine by raising and rotating a grain discharge auger (3) that discharges grains from a grain tank (2), and is characterized in that the device is provided with a plurality of discharge position designation switches (39, 40) that designate the discharge position of the grain discharge outlet (18) on an operating device (52) and that move by raising and rotating automatically so as to pass above a steering section.

2. The grain discharge device for a combine harvester as described in claim 1, characterized in that, when a first discharge position designation switch (39) is operated to be ON, the grain discharge auger (3) turns right after raising and lowering, moves the grain discharge outlet (18) to the right side of the body of the machine, and stops at a predetermined position, and when a second discharge position designation switch (40) is operated to be ON, the grain discharge auger (3) turns left after raising and lowering, moves the grain discharge outlet (18) to the left side of the body of the machine, and stops at a predetermined position.

3. The grain discharge device of a combine harvester as described in claim 1 or 2, characterized in that a stop / discharge switch (32) is provided on the operating device (52) for stopping the movement of the grain discharge port (18) midway through its movement to enable grain discharge.

4. 4. The grain discharge device of a combine harvester according to claim 3, further comprising a discharge monitoring camera (45) for capturing an image below the grain discharge port (18) and displaying the image on a monitor provided in the driver's seat.

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