JPH02273118A - Grain-discharging device in combine - Google Patents

Abstract

PURPOSE:To simplify moving work of discharging auger, shorten the time of grain discharging work and improve work efficiency by providing a revolution control device controlling the discharging auger to switch to storing position and grain discharging position. CONSTITUTION:A discharging auger 2 discharging grain in a grain tank is controlled so as to revolve from storing position to a fixed discharging position by 'on' operation of a discharging switch 4 and the discharging auger 2 in discharging position is controlled to revolve to storing position and to be stored by 'on' operation of a storing switch 5. Besides, a discharging auger 2 in automatic revolution is stopped in emergency by 'on' operation of a stopping switch 6. Thus, operation of the device is simplified and efficiency of grain discharging work is improved as switching operation of the discharging auger 2 to storing position and discharging position is performed by operations of discharging switch 4 and storing switch 5. Furthermore, safety is also improved as the discharging auger 2 in automatic revolution is stopped in emergency by stopping switch 6.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a grain discharge device for a combine harvester equipped with a discharge auger for discharging grains harvested by a combine harvester and stored in a grain tank to the outside of the machine. .

Conventional technology In large combine harvesters, harvested grain is temporarily stored in a grain tank, and when the grain in the grain tank reaches an appropriate amount, the discharge auger is rotated and the grain is transferred to a transport vehicle, etc. Drain the grains.

This discharge auger has a length that extends almost in the longitudinal direction of the machine, and is configured so that it can rotate and move up and down relative to the machine, and is stored on the top of the machine during reaping work or while driving. When discharging grains, the machine pivots to the discharging position to discharge the grains, and when the discharging operation is completed, it pivots to the storing position to store the grains.

In this way, a motor and a hydraulic cylinder are provided to rotate and move the discharge auger up and down, and an operating lever is provided to operate these motors and hydraulic cylinders. The operation of the discharge auger is controlled to rotate the discharge auger to a predetermined position.

Problems to be Solved by the Invention However, it is difficult to rotate the discharge auger using the operating lever.
In the configuration in which the vertical movement operation is performed, the operator has to operate the discharge auger while visually confirming the movement state of the discharge auger, and this movement operation of the discharge auger is complicated. Further, there are problems in that the discharge auger may go too far when stopped at a predetermined discharge position, and the grain discharge operation may take a long time.

Therefore, the present invention provides a swing control device that controls the discharge auger to switch between the storage position and the grain discharge position, thereby simplifying the work of moving the discharge auger and shortening the time required for grain discharge. The aim is to improve efficiency.

Means for Solving the Problems The present invention provides a swing control device that controls a swingable discharge auger (2) for discharging grains in a grain tank (1) to switch between a storage position and a discharge position. In (3),
A discharge switch (4) that controls the discharge auger (2) to rotate from the storage position to the discharge position, and a storage switch (5) that controls the discharge auger (2) to rotate and store the discharge auger (2) from the discharge position to the storage position.
) and a stop switch (6) that makes an emergency stop of the discharge auger (2) during these swing controls.

Operation and effect of the invention Discharge auger (2) for discharging grains in the grain tank (1)
The ejection switch (4) is controlled by the swing control device (3).
When the storage switch (5) is turned on, the discharge auger (2) in the discharge position is controlled to be rotated and stored in the storage position when the storage switch (5) is turned on. Further, when the stop switch (6) is turned on, the discharge auger (2) which is automatically turning is stopped in an emergency.

In this way, the switching operation between the storage position and the discharge position of the discharge auger (2) is performed using the discharge switch (4) and the storage switch (5).
This can be done by simple operation, which simplifies the operation and improves the efficiency of grain discharge work. Moreover, since the discharge auger (2) can be brought to an emergency stop by the stop switch (6) during this automatic turning, safety can be improved.

Example: On the farm side, the combine harvester is equipped with a left and right running device (7)
A reaping device (9) for reaping the culms is mounted on a chassis (8) having a
, a rear threshing device (10) that inherits and threshes the grain culm harvested and transferred by this reaping device (9), and the grains threshed by this threshing device (10) are fried by a grain frying machine or the like. A grain tank (1) is provided to store and store the grains.

The grain tank (1) is provided at the rear end of the chassis (8), and at the rear end of the grain discharge gutter that runs rearward along the bottom of the tank,
A grain lifting cylinder (11) is provided vertically and rotatably around the grain lifting cylinder axis, and a discharge auger (2) is provided at the upper end of this grain lifting cylinder (11) so as to be freely movable up and down. , the discharge auger (
2) is configured to be able to rotate and move up and down relative to the aircraft.

The grain lifting cylinder (11) is configured to be rotated via a gear by forward and reverse rotation of a motor (12).

The discharge auger (2) is configured to be moved up and down by expansion and contraction due to the hydraulic pressure of a hydraulic cylinder (13), and this hydraulic cylinder (13) is provided with a solenoid valve (14). These motors (12) and hydraulic cylinders (13) are operated by operating levers (15) provided on a cockpit (24) and a cockpit (23) that is tilted sideways.

The operating lever (15) is configured to be able to tilt forward and backward and left and right from the neutral position, and when tilted forward or backward,
The hydraulic cylinder (13) is controlled in conjunction with the lower solenoid (16) or the higher solenoid (17) of the solenoid valve (14).
In addition, the operation lever (15) is moved to the left,
Or, when the motor (12) is tilted to the right, the forward/reverse device (18) of the motor (12) is controlled and interlocked to rotate the motor (12) in the forward or reverse direction. This allows the auger (2) to turn left and right and move up and down.

A rotation stop switch (19) is provided that detects that the discharge auger (2) has rotated to the storage position and stops the rotation, and the discharge auger (2) is lowered and the locking device (19) on the top of the threshing device (10) A locking switch (21) is provided to detect that the discharge auger (20) is in the locked storage position.It also detects that the discharge auger (2) has rotated to a predetermined discharge position and stops the rotation. A positioning switch (22) is provided.A stop switch (6) is also provided for making an emergency stop while the discharge auger (2) is turning.

A swing control device (3) that controls the discharge auger (2) to switch between a storage position and a discharge position for discharging grains.
has been established.

The swing control device (3) has a CPU, a memory, and an input/output circuit. Operation information of the switch (4), the storage switch (5) that controls the rotation storage from the ejection position to the storage position, and the stop switch (6), the rotation stop switch (1)
9) When the detection information of the , locking switch (21), and positioning switch (22) is input, the rotation control device (3) controls the forward/reverse rotation device (of the motor (12)) based on these information. 18), and the raising solenoid (17) or lowering solenoid (16) of the hydraulic cylinder (13)
The configuration is such that control is performed so that the output is output to each of the following.

The storage switch (5), the ejection switch (4), and the stop switch (6) are installed in the cockpit (24) and the cockpit (23) that is tilted sideways.
) are arranged in a concentrated manner near the operating lever (15).

Grain harvested by the combine operation is stored in a grain tank (1). When the grain in the grain tank (1) reaches an appropriate amount, the combine harvester operation is interrupted and the grain is transferred to a transport vehicle or other container waiting on a farm road or the like.

When the discharge switch (4) is turned on and operated, the rotation control device (
The hydraulic cylinder (13) is extended by the rising signal from the motor (3), the discharge auger (2) is rotated upward from the locking tool (20), a rotation signal in the set direction is output, and the motor (
12), the discharge auger (2) rotates, and when the positioning switch (22) is actuated, the rotation is stopped. In this way, the discharge auger (2) is controlled to swing from the storage position to the discharge position by turning on the discharge switch (4). The discharge auger (2) in this discharge position can be rotated left and right and moved up and down using the operating lever (15) to align the discharge position.

When the storage switch (5) is turned on after the grain discharge operation is completed, the grain is rotated in the opposite direction to the direction of rotation to the discharge position, and when the rotation stop switch (19) is activated, the rotation is stopped and rotated downward. and is locked by the locking tool (20). In this way, the discharge auger (2) is activated by the storage switch (5).
) is controlled to swing and store from the ejection position to the storage position.

When the stop switch (6) is turned on and operated, the discharge auger (2) under swing control can be brought to an emergency stop by a stop signal from the swing control device (3).

In this way, it is possible to switch between the storing position and the discharging position by operating the switch, which makes it easy to operate and enables accurate switching control, improving operability and improving the efficiency of grain discharging work. sell.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a partially enlarged plan view, Fig. 2 is a control block diagram, Fig. 3 is an overall plan view of the combine harvester, and Fig. 4 is an overall side view. It is. In the figure, (1) is the grain tank, (2) is the discharge auger, (3) is the swing control device, (4) is the discharge switch,
(5) shows the storage switch, and (6) shows the stop switch.

Claims (1)

[Claims] In a swing control device (3) that controls a swingable discharge auger (2) for discharging grains in a grain tank (1) to switch between a storage position and a discharge position, the discharge auger (2) an ejection switch (4) that controls the auger to rotate from the storage position to the ejection position; a storage switch (5) that controls the auger to rotate and store the auger from the ejection position to the storage position; ) A stop switch (6) for making an emergency stop.