JPH0361426A - Grain discharge device of combine - Google Patents

Abstract

PURPOSE:To improve operation efficiency of a grain discharge device by providing a turning control device capable of carrying out turning control from a stop position of discharge an auger to every direction among a discharge direction and housing direction even after discharge the auger during automatic turning control was stopped by a stopping switch. CONSTITUTION:A discharge auger 2 for discharging grains in grain tank 1 to the outside is subjected to a turning control from housing position to discharge position by operation of a discharge switch 3 and the discharge auger 2 put at the discharge position is controlled so as to turn to the housing position and house the auger 2. When operator feels danger during the turning control, safety is secured by immediately stopping the discharging of the auger 2 by the operation of a stopping switch 5. After discharging the auger 2 is stopped by the operation of the stopping switch 5, the discharge auger 2 is subjected to the turning control form the stopping position to either one position of the discharge position or housing position by the operation of a discharge switch 3 and housing switch 4.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention provides a discharge auger for discharging grains harvested by a combine harvester and stored in a grain tank to the outside of the machine.
The present invention relates to a grain discharge device for a combine harvester that is controlled to switch between a storage position and a discharge position.

Conventional technology A swing control device is provided that switches a rotatable discharge auger, which discharges grains from a grain tank to the outside of the machine, between a grain discharge position and a storage position by operating an automatic switch. A stop switch is provided to emergency stop the discharge auger under control, and after the discharge auger is stopped by this stop switch, the rotation is controlled only in the direction in which it is operating, either the discharge side or the storage side.

Problems to be Solved by the Invention As described above, after the discharge auger under automatic swing control is stopped by the stop switch, when the automatic switch is operated, the swing is controlled only in the direction in which the automatic swing is being controlled. It was not possible to turn in any direction, and the control configuration was limited.

Therefore, the present invention attempts to improve work efficiency by making it possible to control the discharge auger to swing in either the discharge direction or the storage direction from this stop position after the discharge auger is brought to an emergency stop during automatic swing control. be.

Means for Solving the Problems The present invention has a structure in which a rotatable discharge auger 2 for discharging grains from a grain tank 1 is housed. In a combine that controls switching operation between a device and a discharge position, a discharge switch 3 controls the discharge auger 2 to rotate from the storage position to the discharge position, and controls the discharge auger 2 to rotate and store the discharge auger 2 from the discharge position to the storage position. A stop switch 5 is provided to emergency stop the discharge auger 2 during the swing control, and after the discharge auger 2 is stopped by the stop switch 5, the discharge switch 3 and the storage switch 4 must be operated. f9., which is provided with a rotation control device 6 for controlling the rotation of the ejection auger 2 from this stop position toward either the ejection position or the storage position, whichever is specified by the operation. The structure is a lees discharge device.

Effect of the invention The grains harvested by the combine harvester are stored in the grain tank 1.
contained within. The discharge auger 2, which discharges the grains in the grain tank 1 to the outside of the machine, is swivel-controlled from the storage position to the discharge position by operating the discharge switch 3, and the discharge auger 2, which discharges the grains from the grain tank 1 to the outside of the machine, is controlled to rotate from the storage position to the discharge position by operating the storage switch 4. The auger 2 is controlled to be rotated to the storage position and stored.

If the operator feels danger during these swing controls, the discharge auger 2 is immediately turned off by operating the stop switch 5.
Stop and hold to ensure safety.

After the discharge auger 2 is stopped by operating the stop switch 5, the discharge auger 2 is directed from the stop position to the discharge position or the storage position, whichever is specified by the operation, by operating the discharge switch 3 and storage switch 4. The rotation is controlled by

Effects of the Invention The discharge auger 2 under swing control can be stopped in an emergency by operating the stop LI switch, ensuring safety.
Since it is possible to swivel toward either the ejection position or the storage position using the swivel control device 6 without unnecessary movements, work efficiency can be improved.

Embodiment On the farm side, the combine harvester is mounted on a chassis 8 having a left and right traveling device 7, a reaping device 9 for reaping grain culms, and a rear part for inheriting and threshing the husks that are harvested and transferred by this reaping device 9. A threshing device 10 and a grain tank 1 for storing the grain threshed by the threshing device 10 are provided.

The grain tank 1 is provided at the rear end of the chassis 8, and the grain lifting cylinder 11 is attached vertically to the rear end of a grain discharge gutter that extends rearward along the bottom of the tank 1. A discharge auger 2 is provided at the upper end of the fried grain WJ 1.1 so as to be freely movable up and down. There is. The grain lifting cylinder 11 has an interlocking configuration in which it is rotated left and right through a gear by the forward and reverse rotation of the motor 12. The discharge auger 2 is configured to be moved by rJ times by expansion and contraction due to the hydraulic pressure of the hydraulic cylinder 13, and is provided with a height switch 25 that detects when the discharge auger 2 reaches a predetermined elevation angle. The motor 12 and the hydraulic cylinder 13 can be operated by a control lever 15 provided on the control platform 23 above the rear of the control seat 24.

The operating lever 15 is configured to be able to freely tilt forward and backward and left and right from the neutral position, and when tilted forward or backward, it turns on the lowering switch 26 or the raising switch 27 and switches the switching valve of the hydraulic cylinder 13. solenoid 16
Alternatively, the hydraulic cylinder 1 can be controlled in conjunction with the rising solenoid 17.
3, and when the operating lever 15 is tilted to the left or right, the left switch 28 or the right switch 2
9 is turned on, the left rotation relay 14 or the right rotation relay 18 of the motor 12 is controlled and interlocked to rotate the motor 2 in forward and reverse directions. This allows left and right turns.

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 lowers the discharge auger 2 to the storage position where it is locked to the locking tool 20 on the top surface of the threshing device IO. A locking switch 21 is provided to detect the presence of the locking switch. Further, a positioning switch 2 detects that the discharge auger 2 has rotated to a predetermined discharge position and stops the rotation.
2 are provided. Further, a stop switch 5 is provided for making an emergency stop while the discharge auger 2 is turning.

A swing control device 6 is provided to control the discharge auger 2 to switch between a storage position and a discharge position for discharging grains.

The swing control device 6 has a CPU, a memo, and an input/output circuit. Operation information of the storage switch 4 and stop switch 5, which control the storage switch 4 to be rotated and stored from the storage position to the storage position, and detection information of the rotation stop switch 19, the height switch 25, the locking switch 21, and the positioning switch 22 are input, respectively. Based on this information, the rotation control device 6 sends the right rotation relay 18 and left rotation relay 1 of the motor 2.
4, and the ascending solenoid 17 and descending solenoid 16 which operate the switching valves of the hydraulic cylinder 13, respectively, so that control signals are outputted thereto.

The discharge auger 2 stored in the storage position is operated in the order of rising and turning to the left when the discharge switch 3 is turned on, stops turning when the positioning switch 22 is turned on, and is controlled to swing to a predetermined discharge position. The discharge auger 2 in this discharge position operates in the order of rising and turning to the right when the storage switch 4 is turned on, and when the rotation is stopped by turning on the rotation stop switch 19, it descends and automatically engages the locking tool 20. This is a control configuration that is housed. During automatic turning by turning on the discharge switch 3 and storage switch 4, turning on the stop switch 5 interrupts the automatic rotation and stops the discharge auger 2, and then turning on the discharge switch 3 or storage switch 4. When operated, the discharge auger 2 is controlled to rotate from this stop position toward either the discharge position or the storage position, whichever is designated by the operation.

Furthermore, when the discharge switch 3 and storage switch 4 start the rotation control of the discharge auger 2, if the discharge auger 2 is lower than a predetermined elevation angle and the height switch 25 is not turned on, the discharge auger 2 is rotated upward. When it is detected that the height switch 25 is turned on, turning is started.

Hull culms harvested by a reaping device 9 during combine harvesting operation are transferred to a threshing device 10 for threshing, stored in a grain tank 1, and discharged outside the machine by a discharge auger 2 when necessary. .

When taking out grains from the grain tank 1, when the discharge switch 3 is turned on, a rise control signal is output to the rise solenoid 17, the hydraulic cylinder 13 is extended, the discharge auger 2 is rotated upward, and the locking tool 20 The height switch 25 is turned on and stopped after a predetermined time. Next, a left rotation control signal is output to the left rotation relay 14 to control the rotation of the motor 12, causing the discharge auger 2 to rotate to the left. When the rotation stop switch 19 is turned on, the discharge auger 2 is rotated to a predetermined discharge position. and stop.

The discharge auger 2 in this discharge position is moved up and down and turned left and right by operating the operating lever 15, and adjustments such as alignment of grain discharge are performed.

To store the discharge auger 2 after grain discharge is complete, turn on the storage switch 4 and turn the height switch 25 to O.
The N state is detected, and if it is OFF, a rise control signal is output to the rise solenoid 17, and when the hydraulic cylinder 13 is extended and the height switch 25 is turned on, the upward rotation of the discharge auger 2 is stopped. Next, the right rotation control signal is output to the right rotation relay 18, which controls the rotation of the motor 12, causing the discharge auger 2 to rotate to the right, and positioning switch 22.
When turned ON, the rotation will be stopped. Next, a descending control signal is output to the descending solenoid 16 to contract the hydraulic cylinder 13, and when the discharge auger 2 is rotated downward and is engaged with the retaining tool 20, the retaining switch 21 is turned on. The discharge auger 2 is stored in the storage position. In this way, the discharge auger 2 is controlled to switch between the storage position and the discharge position.

While the discharge switch 3 and storage switch 4 are controlling the rotation of the discharge auger 2, when the stop switch 5 is turned on, the discharge auger 2 stops rotating. After the discharge auger 2 is stopped by the stop switch 5, the discharge auger 2 is controlled to swing from this stop position to the discharge position by turning on the discharge switch 3, and the discharge auger 2 is rotated from this stop position to the storage position by turning on the storage switch 4. The rotation is controlled to In this way, the discharge auger 2 can be stopped in an emergency by operating the stop switch 5 during the swing control of the discharge auger 2, so safety can be ensured. By operating the storage switch 4, the rotation is controlled from this stop position toward either the discharge position or the storage position, whichever is designated by the operation, thereby eliminating unnecessary movement and improving work efficiency. Furthermore, at the start of this automatic rotation control, when the discharge auger 2 is below a predetermined elevation angle, it is rotated upward to this elevation angle and then rotated, and when it is above a predetermined elevation angle, it is rotated as it is without being rotated upward. Since it is a fixed type, it is possible to improve work efficiency by eliminating unnecessary movements and to ensure safety.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention, in which FIG. 1 is a control circuit diagram, FIG. 2 is a plan view of a combine harvester, and FIG. 3 is a side view thereof. In the figure, the reference numeral "" indicates a grain tank, 2 indicates a discharge auger, 3 indicates a discharge switch, 4 indicates a storage switch, 5 indicates a stop switch, and 6 indicates a rotation control device.

Claims (1)

[Claims] In a combine harvester that controls a rotatable 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 is controlled to rotate from a storage position to a discharge position. a discharge switch 3 to control;
A storage switch 4 that controls the rotational storage from the discharge position to the storage position, and a stop switch 5 that emergency stops the discharge auger 2 during these swing controls are provided, and after the discharge auger 2 is stopped by the stop switch 5. The grain machine is equipped with a rotation control device 6 that controls the rotation of the discharge auger 2 from the stop position toward the discharge position or the storage position, whichever is designated by the operation, by operating the discharge switch 3 and the storage switch 4. Grain ejector.