JP2884615B2 - Combine grain discharger - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a combine grain discharging device.

2. Related Art and Problems to be Solved by the Invention After turning the left and right and up and down rotatable discharge augers for discharging grains in the grain tank from the grain discharge position to the storage position by turning on the storage switch, In the storage control device for controlling to lower and store, in the storage position where the discharge auger is locked to the auger receiver, a lowering switch is provided in the auger receiver, and the lowering switch is operated to stop the lowering of the discharge auger. In such a configuration, the down switch may be damaged by vibration of the discharge auger during traveling.

Therefore, the present invention is intended to prevent the descent switch from being damaged and to securely store the discharged auger in the auger receiver.

Means for Solving the Problems According to the present invention, a discharge auger 2 that can rotate left and right and up and down freely to discharge grains in a grain tank 1 is turned on by a storage switch 3.
The storage auger 2 is controlled so that it is turned to a storage position by operation and then lowered and stored.
Is provided with a lower limit switch 4 for detecting that the discharge auger 2 has been lowered to the lower limit position of the vertical rotation range, and after the lower limit switch 4 is turned on, the discharge auger 2 is controlled to be lowered and stored in the storage position for a certain time. The configuration of the combine grain discharging device is as follows.

The discharge auger 2 is rotated right and left and up and down to a discharge position, and the discharge auger 2 transfers the grains in the grain tank 1 to another container or the like.

When the storage switch 3 is turned on after the grain discharging operation is completed, the discharge auger 2 is turned to the storage position and stopped, and is turned downward, and when the lower limit switch 4 is turned on, a descending output is output for a certain period of time. The discharge auger 2 is stored at the storage position.

As described above, after the lower limit switch 4 is turned on, the discharge auger 2 is lowered for a certain period of time and is stored in the storage position. Therefore, the lowering switch is moved to the storage position of the discharge auger 2 as in the prior art. There is no need to provide such a switch, so that the down switch is not damaged by the vibration of the discharge auger 2, and the discharge auger 2 can be reliably stored in the storage position.

In the example shown in the drawings, a combine is provided on a vehicle body having a left and right traveling device 7 on a cutting device 8 for cutting grain culms, and a rear portion for inheriting and threshing grain culms cut and transferred by the cutting device 8. A threshing device 9 is provided, and a grain tank 1 and the like for accommodating and storing the grains threshed by the threshing device 9 by a fryer or the like.

The grain tank 1 is provided at the rear end of the vehicle body, and a grain discharging tube 10 extending vertically is attached to the rear end of the grain discharging gutter facing rearward along the bottom. A discharge auger 2 is provided at the upper end of the fryer 10 so as to be freely rotatable up and down, and the discharge auger 2 is configured to be rotatable and vertically rotatable with respect to the machine body.

The fryer 10 is configured to rotate left and right through gears by expansion and contraction of the rotation cylinder 11. The discharge auger 2 is configured to be vertically rotated with respect to the fryer 10 by the expansion and contraction of the upper and lower cylinders 12 by the hydraulic pressure.

An upper limit switch 13 and a lower limit switch 4 for detecting the vertical rotation range of the discharge auger 2 and stopping the rotation are provided. The lower limit switch 4 is attached to the upper end of the frying cylinder 10,
When the discharge auger 2 is turned downward, the discharge auger 2 comes into contact with the auger suspension 5 and is turned ON.

A left turn switch 6 is provided to detect that the discharge auger 2 has turned counterclockwise to the discharge position and stop turning.
Further, a right turning switch 14 is provided for detecting that the discharge auger 2 has turned clockwise to the storage position and stopping the turning.

A discharge switch 16 and a storage switch 3 for switching the discharge auger 2 between a storage position where the discharge auger 2 is locked to the auger 2 receiver 15 on the upper surface of the threshing device 9 and a discharge position that is turned from this storage position.
And a stop switch 17 for performing an emergency stop during the automatic turning is provided.

Operation and detection of the discharge switch 16, the storage switch 3, the stop switch 17, the upper limit switch 13, the lower limit switch 4, the left turning switch 6, and the right turning switch 14 for the auger control device 23 having the storage control device. When the information is input, a control signal is output from the auger control device 23 to the ascending solenoid 18, the descending solenoid 19, the left turning solenoid 20, the right turning solenoid 21, and the timer 22 based on the information. It is configured to be controlled as follows.

When a control signal is output from the auger control device 23 to the ascending solenoid 18 and the descending solenoid 19, the upper and lower cylinders 12 are expanded and contracted, and the discharge auger 2 is vertically rotated. or,
When a control signal is output from the auger control device 23 to the left turning solenoid 20 and the right turning solenoid 21, the rotation cylinder 11 expands and contracts, and the discharge auger 2 turns left and right.

When the discharge switch 16 is turned on, an ascending control signal is output from the auger control device 23 and the discharge auger 2 is set to the upper limit switch 13.
Is turned upward until is turned on. This upper limit switch 13
When turned on, a left turn control signal is output, and the discharge auger 2 turns left. When the discharge auger 2 is turned to the discharge position, the left turn switch 6 is turned on to stop turning. In this way, the discharge auger 2 is controlled to rotate from the storage position to the discharge position.

When storing the discharge auger 2 at this discharge position,
The storage switch 3 is turned ON. When this operation information is input to the auger control device 23, an ascending control signal is output and the discharge auger 2 is rotated upward, and stops when the upper limit switch 13 is turned on. When the upper limit switch 13 is turned on, a right turn control signal is output, and the discharge auger 2 turns right. When the discharge auger 2 turns to the storage position, the right turn switch 14 turns on and the turn stops. When the right turn switch 14 is turned on, a lowering control signal is output and the discharge auger 2 is rotated downward, and when the lower limit switch 4 is turned on, the timer 22 is operated. This timer 22
During a certain period of operation, the descending solenoid 19 is excited, a descending output is output, and the discharge auger 2 is rotated downward, received by the auger receiver 15, and stored.

The discharge auger 2 swiveled to the storage position in this manner is lowered, lowered for a certain period of time after the lowering switch 4 is turned on, received by the auger receiver 15, and stored, so that it is securely moved to the storage position. Can be stored.

FIG. 4 is a plan view of another embodiment of the present invention. The discharge switch 24 on the fuselage side, which is activated when the discharge auger 26 turns to the discharge position A and stops turning, comes into contact with the discharge switch 24 to operate the switch. The cam body 25 is provided between the discharge position A and the turning limit position B of the discharge auger 26.

The discharge auger is discharged by turning on the automatic discharge switch in a configuration in which the discharge auger is provided with a swivel control device that controls the discharge auger between the storage position and the discharge position so that the discharge auger can be rotated left and right by manual operation. In a mode in which a discharge switch is provided which is activated when turning to the position to stop turning, the discharging position is changed by manually turning the discharge auger left and right during the discharging operation. The position where the auger changed the automatic discharge position,
That is, when the discharge switch is not operated and the automatic discharge switch is turned ON, the discharge auger is turned to the turning limit position and the turning output is still output.

In order to prevent this malfunction, the discharge auger is prevented from automatically turning between the discharge position and the turning limit position even if the automatic discharge switch is turned ON.

At the rear of the grain tank 27, a fryer cylinder 28 for frying the grains in the grain tank 27 is provided rotatably around the axis of the fryer cylinder, and is discharged to the upper end of the fryer cylinder 28. The auger 26 is provided so as to be vertically rotatable.

A turning control device is provided to control the discharge auger 26 from the storage position C to the discharge position A so that the discharge auger 26 turns when the automatic discharge switch is turned ON, and when the discharge auger 26 turns to the discharge position A, the discharge switch 24 operates. To stop turning.

The discharge switch 24 is mounted on the machine body side, and a cam body 25 for contacting the discharge switch 24 and operating the switch is provided on the outer peripheral portion of the hoisting cylinder 28, and the cam body 25 is positioned at a discharge position of the discharge auger 26. From the turning limit position.

When the automatic discharge switch is turned ON, the discharge auger 26 is turned by the turning control device. When the discharge auger 26 is turned to the discharge position A, the cam 25 comes into contact with the discharge switch 24, the switch is operated, and the turning is stopped. Between the discharge position A of the discharge auger 26 and the turning limit position B, the discharge switch 24 is in contact with the cam body 25, so that the discharge switch 24 is kept in the operating state. Therefore, even if the automatic discharge switch is turned ON, the discharge auger
It is possible to prevent the erroneous operation of turning 26.

[Brief description of the drawings]

1 shows an embodiment of the present invention. FIG. 1 is a control circuit diagram, FIG. 2 is a partially enlarged side view, FIG. 3 is an overall side view of a combine, and FIG. It is a top view. In the drawing, reference numeral 1 denotes a grain tank, 2 denotes a discharge auger, 3 denotes a storage switch, 4 denotes a lower limit switch, and 23 denotes an auger control device.

Claims (1)

(57) [Claims] A control is made such that a left / right and up / down rotatable discharge auger for discharging grains in a grain tank is turned down to a storage position by ON operation of a storage switch, and then lowered and stored. The storage control device is provided with a lower limit switch 4 for detecting that the discharge auger 2 has dropped to the lower limit position of the vertical rotation range. After the lower limit switch 4 is turned on, the discharge auger 2 is lowered for a certain period of time to the storage position. A combine grain discharging device characterized by being controlled to be stored.