JPH11262321A - Work vehicle grain discharger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject apparatus capable of preventing the damage by obstacles when stretching a moving cylinder by composing a transverse auger of a fixed cylinder and the moving cylinder and installing a means for detecting the obstacles in the tip part of the moving cylinder. SOLUTION: This apparatus for discharging grains for a working car is obtained by composing a transverse auger 5 of a fixed cylinder 5a and a moving cylinder 5b fitted onto the fixed cylinder 5a and movable and stretchable in the longitudinal direction and installing a means 6 for detecting obstacles in the tip part of the moving cylinder 5b in the working car equipped with a grain tank 3 for temporarily storing grains and a longitudinal auger 4 and a transverse auger 5 for discharging the grains temporarily stored in the grain tank 3 on an undercarriage 2 having a mobile device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a grain discharging device for a working vehicle or the like.

[0002]

2. Description of the Related Art In a conventional grain discharging device for a working vehicle or the like, a horizontal auger is composed of a fixed cylinder and a movable cylinder, and the movable cylinder is configured to extend and contract between an upper side and a lower side in a grain discharging direction. is there.

[0003]

The above-mentioned apparatus for discharging grain of a work vehicle has the following disadvantages. Although there is no problem when the moving cylinder is contracted, there is a drawback that when the moving cylinder is extended, the moving cylinder is damaged due to contact or collision with an obstacle. The present invention is intended to solve such a problem.

[0004]

SUMMARY OF THE INVENTION A grain discharging device for a working vehicle according to the present invention solves the above-mentioned problems and has the following configuration. That is, in the grain discharging device for a working vehicle having the above-described configuration, the horizontal auger 5 is composed of a fixed cylinder 5a and a moving cylinder 5b fitted to the fixed cylinder 5a and moved in the longitudinal direction to expand and contract. The grain discharging device is characterized in that an obstacle detecting means 6 is provided at the tip of 5b.

[0005]

1 to 3 show a combine embodying an embodiment of the present invention. In front of the undercarriage 2 having the traveling device 1, a reaper 7 and a supply and transport device 8 are provided. The cutting device 7 includes a weeding tool 9 for weeding the planted grain culm, a raising case 10 for causing the planted grain culm, a cutting blade 11 for cutting the planted grain culm, and a cutting blade 11 for cutting the planted grain culm. A stock transfer device 12 is provided for holding the grain culm and transporting it backward. Behind the stock carrier 12, there is provided a supply carrier 8 that takes over and transports the grain stems conveyed from the stock carrier 12.

The reaper 7 is supported by a reaper supporting frame 14 which moves up and down about a fulcrum above the traveling transmission device 13 at a substantially right and left intermediate portion. It is configured to move up and down together with the support frame 14. Above the undercarriage 2, a threshing device 16 having a feed chain 15 that takes over and transports the grain stalks transported from the supply and transport device 8, and a Glen that temporarily stores the grains that have been threshed and sorted by the threshing device 16. The tank 3 and an operation unit 17 for executing various operations of the combine are mounted. Behind the threshing device 16, there are provided a culm chain 18 that takes over and conveys the culm conveyed from the feed chain 15, and a cutter 19 for cutting the culm below the culm chain 18. Further, instead of the cutter 19 of this embodiment, for example, another working machine such as a knotter for binding the culm may be attached.

[0007] A vertical auger 4 and a horizontal auger 5 are provided for discharging the grains outside the machine when the grain volume in the Glen tank 3 is full. The vertical auger 4 is configured to be driven to rotate left and right by an electric motor 20. That is, the rotational force of the motor 20 is
a through the gear 21 on the vertical auger 4 side. Further, the horizontal auger 5 is lifted and lowered by the hydraulic cylinder 22. The cylinder side of the hydraulic cylinder 22 is loosely fitted to the vertical auger 4, and the piston rod 22 a side thereof is loosely connected to the base of the fixed cylinder 5 a of the horizontal auger 5.
The horizontal auger 5 rises when the hydraulic cylinder 22 is extended, and falls when the hydraulic cylinder 22 is contracted.

The horizontal auger 5 is composed of a fixed cylinder 5a and a movable cylinder 5b. The moving cylinder 5b is fitted to the fixed cylinder 5a, and is configured to expand and contract in the longitudinal direction which is the cylinder direction, that is, the upper side and the lower side in the conveying direction of the grain culm. The expansion and contraction configuration of the moving cylinder 5a will be described. An electric motor 23 is mounted behind the fixed cylinder 5a via a fixed cylinder flange 24. A screw shaft 25 is attached to an output shaft of the motor 23, and a metal 26 having a female screw to be fitted to the screw shaft 25 is fixed to the movable cylinder 5b.

The details of the horizontal auger 5 will be described with reference to FIGS. A spiral 27 is fixed to a shaft 28 inside the fixed cylinder 5a. A plurality of bosses 30 are provided inside the movable cylinder 5b so as to be fitted to the shaft 29, and a spiral 31 is fixedly provided on the boss 30. An extendable spring conveyor 32 is provided between the bosses 30.

When the harvesting operation is performed by advancing such a combine, the grain stalks planted in the field scene are weeded by the weeding implement 9, raised, raised by the case 10, and cut by the cutting blade. Reaped at 11. Then, the stock transfer device 12
And transferred to the supply / conveyance device 8. The grain stalk taken over by the supply / conveyance device 8 is further conveyed backward. And the feed chain 1 of the threshing device 16
5 and the culm is threshed by the threshing device 16 while being conveyed rearward.

The grains thus threshed and sorted out are conveyed into the Glen tank 3 via the first deep-frying cylinder 33,
Stored temporarily. 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 17. 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 port 34 is moved to a position such as the bed of the truck, and the grain discharge lever 35 of the operation unit 17 is moved.
And the grains in the Glen tank 3 are discharged out of the machine.

To move the grain discharge port 34 to an arbitrary position, the horizontal auger 5 stored in the auger receiver 36 is raised by the hydraulic cylinder 22. Then, the motor 20 is driven to move the discharge port 34 of the horizontal auger 5 to an arbitrary position. To move the outlet 34 to an arbitrary position,
The moving cylinder 5b is also extended. Normally, when the horizontal auger 5 is stored in the auger receiver 36, the moving cylinder 5b is minimized as shown in FIG. 5 (see FIG. 5). 6). When the moving cylinder 5b is contracted, the bosses 30 are approaching each other and the spring conveyor 32 is contracted inside the moving cylinder 5b as shown in FIG.

When the motor 23 is driven, the screw shaft 25 rotates. Since the metal 26 fixed to the moving cylinder 5b is fitted on the screw shaft 25, the metal 26 moves toward the lower side in the grain discharging direction. Therefore,
The moving cylinder 5b extends. At this time, the interval between the bosses 30 becomes longer inside the movable cylinder 5b, so that the spring conveyor 32 extends.

When the discharge port 34 reaches a position desired by the operator, the kernel discharge lever 35 of the operation unit 17 is set to the on state, and the kernel in the Glen tank 3 is discharged. When the grain discharge lever 35 is in the on state, the lower spiral (not shown) in the Glen tank 3, the spiral in the vertical auger 4 (not shown), the spiral 27 in the fixed cylinder 5a, and the spiral in the movable cylinder 5b. 31, the spring conveyor 32 rotates. Therefore, the grains in the Glen tank 3 are discharged from the discharge port 34 to the outside of the machine.

In such a combine, the moving cylinder 5
An obstruction detecting means 6 is provided at the tip of b. When the movable cylinder 5b is contracted, the movable cylinder 5b does not come into contact with an obstacle, but when it is extended, the movable cylinder 5b may come into contact with or come into contact with the obstacle. When detecting an obstacle, the moving cylinder 5b stops extending. A specific embodiment of the obstacle detection means 6 is a contact type switch at the tip of the moving cylinder 5b. This switch is operated by a leaf spring 3 as shown in FIG.
7 supported. Thereby, the movable cylinder 5b can be prevented from contacting an obstacle and being damaged. Further, since the switch 6 is supported by the leaf spring 37, it is possible to prevent the switch 6 from being damaged. Other than the leaf spring 37, it may be supported by a damper (not shown) such as a spring. Further, as another embodiment of the obstacle detecting means 6, the distance to the obstacle may be detected by an ultrasonic sensor.
Any structure is possible as long as the moving cylinder 5b does not abut against an obstacle.

In the above-mentioned configuration, when the obstacle detecting means 6 detects an obstacle, the moving cylinder 5b is stopped from extending when the obstacle is detected. However, the moving cylinder 5b may be contracted by reversing the motor 23. . Further, the engine (not shown) of the combine may be stopped. Thereby, the moving cylinder 5b can be further prevented from contacting the obstacle, so that the moving cylinder 5b can be prevented from being damaged and the safety can be ensured.

An operation box 38 is provided at a position near the grain discharge port 34 of the movable cylinder 5b. The operation box 38 will be described. The operation box 38 includes the moving cylinder 5
b, is installed at a position near the grain discharge port 34 of the movable cylinder 5b, and various switches are provided. As shown in FIG. 6, the various switches are switches 3 for raising, lowering, turning left, and turning right the lateral auger 5.
9, 40, 41, 42 and the horizontal auger 5 in the auger receiver 36
A switch 43 for automatically storing therein, a grain discharge switch 44 for discharging the grain from the grain discharge port 34, and switches 45 and 46 for extending and contracting the movable cylinder 5b.

When the grain is discharged to a truck bed or the like,
Gradually, it may be in a heaping state, approaching the outlet 34, and the outlet 34 may be clogged with grains. Therefore, at the time of discharging the grain, another worker waits near the moving cylinder 5b and operates the various switches of the operation box 38,
The horizontal auger 5 and the vertical auger 4 are driven to change the position of the grain discharge port 34. Thereby, clogging of the grain at the grain discharge port 34 can be prevented. Further, the grains can be uniformly discharged to a truck bed or the like.

The various switches provided on the operation box 38 of the moving cylinder 5b are also provided on the operation unit 17 (not shown). At this time, when the extension / reduction switches 45, 46 provided on the operation box 38 are operated with the switches 45, 46 for extending / reducing the movable cylinder 5b, the extension / reduction switches 45, 46 provided on the operation unit 17 are operated. The moving speed is configured to be slower than when the user operates the key 46. Specifically, the moving speed is reduced by increasing the width of the pulse output to the motor 23 or reducing the current value. This decelerated speed is, for example,
It is preferable that the contact with the worker does not affect the worker such as injury.

With this arrangement, when the extension / reduction switches 45 and 46 are carelessly operated, the moving speed is slow, so that safety can be ensured. , Can prevent scattering of grains. Further, when the extension / reduction switches 45 and 46 provided on the operation unit 17 are operated, the moving cylinder 5b moves quickly, so that the work efficiency is improved.

Another embodiment in which the extension / reduction switches 45 and 46 of the movable barrel 5b provided on the operation unit 17 are operated will be described. As described above, the extension / reduction switches 45 and 46 provided in the operation box 38 of the movable barrel 5b.
Is operated, it is dangerous if the moving cylinder 5b moves at a high speed. Therefore, when the extension / reduction switches 45 and 46 are operated, a single operation is performed to move only a predetermined amount. Further, when it is desired to move the moving cylinder 5b, the extension / reduction switches 45 and 46 are once released and then operated again to enter the on state, thereby moving the moving cylinder 5b by a predetermined amount. As described above, it is better that the moving speed of the moving cylinder 5b is low when the moving distance of the predetermined amount is short (the range where the contact with the worker is not affected). May be. Thus, there is no effect even if the worker comes in contact with the worker.

[0022]

As described above, according to the present invention, the horizontal auger 5 comprises a fixed cylinder 5a and a movable cylinder 5b fitted to the fixed cylinder 5a and movable in the longitudinal direction to extend and contract. Since the obstacle detection means 6 is provided in the portion, damage to the moving cylinder 5b can be prevented.

[Brief description of the drawings]

FIG. 1 is a left side view of the combine.

FIG. 2 is a plan view of the combine.

FIG. 3 is a rear view of the combine.

FIG. 4 is a right side view of the horizontal auger.

FIG. 5 is a plan view of a part of the horizontal auger.

FIG. 6 is a detailed view of a telescopic mechanism.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Traveling device, 2 ... chassis, 3 ... Glen tank, 4 ... Vertical auger, 5 ... Horizontal auger, 5a ... Fixed cylinder, 5b ... Moving cylinder, 6
... Obstacle detection means.

Claims (1)

[Claims] 1. A grain tank (3) for temporarily storing grains, and a vertical auger (4) and a horizontal auger (5) for discharging grains temporarily stored in the grain tank (3) on a chassis (2) having a traveling device (1). A working vehicle provided with the horizontal auger 5 being a fixed cylinder 5a
And a movable cylinder 5b that fits into the fixed cylinder 5a and moves in the longitudinal direction and extends and contracts.
A grain discharging device provided with an obstacle detecting means 6.