JPH0636675Y2 - Grain tank discharging device in combine harvester - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a grain tank discharging device in a combine for loading grains packed in a grain tank into a vehicle parked on a road.

(B) Conventional technology Conventionally, in a grain tank discharge device in a combine, a swing range of a horizontally swingable discharge cylinder is set in advance, and the transported grain is loaded into a carrier, and It is already known that a sensor for detecting grain swelling is provided in the vicinity of the discharge portion of a swivel discharge tube, and the discharge tube is swung according to the detection result.

(C) Problems to be solved by the invention Generally, since the grain tanks of combine harvesters cannot be increased in capacity, work is frequently interrupted and the grains in the grain tanks are parked on the road. Where it is necessary to load on a certain transport vehicle, in the known combine, the former is because the distance between the vehicles when the combine is brought close to the transport vehicle and the relative position between the front and the rear always fluctuates, so Even if is constant, the swing angle of the discharge cylinder and the swing start position and end position are different.
The driver must set the discharge condition before discharging the grain, and at that time, it is set by the driver's feeling, so that the grain may flow out of the loading platform on the one hand or the loading amount on the other by the wrong setting. There is a problem such as shortage, or the tip of the discharge cylinder collides with the operator's cab, and in the latter case, when grain discharge is started with the discharge port of the discharge cylinder facing the center of the cargo bed, When the position reaches a predetermined swell and sequentially turns to one of the discharge tubes, when the end of the loading platform is reached, the sensor detects the outside of the loading platform as a loading insufficient portion, so the grain is outside the loading platform. Since it cannot be detected that the discharge tube has flown out and the other end is unloaded than the middle part in a state in which the discharge cylinder is swung from the middle part to the one end, it cannot be loaded evenly. Further, when the exhaust pipe turns to the driver's seat side, the space between the loading platform and the operator's cab is detected as an unloaded portion, so there is a risk that the exhaust pipe collides with the cab.

(D) Means for Solving Problems The present invention provides a threshing device and a grain tank on the machine base,
It is a combine in which a discharge device capable of undulating and horizontally swinging is mounted on the grain tank, and the discharge device is connected to an undulating drive device and a rotation drive device, and the discharge device is provided with a vertical position sensor and a rotation position sensor. Then, the detection value of the turning limit of the turning position sensor is stored in the control device as a turning angle, and the control unit stores the turning drive device so as to swing the discharge cylinder of the discharging device within the range of the turning angle. A swing switch for instructing through the control device is provided to set the swing range of the discharge tube of the discharge device at the start of grain loading, and the discharge tube can be swung within the range of the loading platform by simply pressing the swing switch. The above problems were solved by loading grains.

(E) Action If the grain tank becomes full during the mowing and threshing work, the combiner is brought close to the transport vehicle parked on the road, the discharge cylinder is tilted up and tilted, and then the discharge device is operated by the turning drive means. When the discharge port is swung to face the one end of the loading platform and the memory switch is pressed, the control device stores the angles detected by the vertical position sensor and the swivel position sensor.

Then, the ejection device is swung to the other end so as to face the other side of the loading platform and the memory switch is pressed, and both position sensors detect the position. Then, press the memory switch to store the detected value in the control device, and when the discharge clutch is turned on and the swing switch is pressed, the discharge device pumps the grains in the grain tank and swings and swings the discharge cylinder approximately evenly. Discharge to the carrier bed.

When the discharge is finished, store the discharge cylinder.

At the next grain discharge, move the combine to the side of the carrier so that the discharge part of the discharge device faces the approximately predetermined position of the carrier bed of the carrier, or correct the position and turn on the swing switch. The discharge cylinder can automatically reciprocate in the range set in advance, and the grains can be lifted and loaded substantially evenly on the entire surface of the bed.

(F) Embodiments An embodiment of the present invention will be described with reference to the drawings. 1 is a threshing device mounted on one side of a machine base 3 having a traveling device 2, and the other side is a control panel in order from the front. , The cockpit 4, the grain tank 5, the engine, etc. are arranged, and the discharge spiral provided at the bottom of the grain tank 5 projects rearward through the bottom of the engine room 6 and stands upright on this projecting portion. A swivel cylinder 9 is attached to the upper part of the pumping cylinder 7 in which the auger is installed, and a discharge cylinder 8 in which the auger is installed is pivotally supported by the swivel cylinder 9 and is a hydraulic cylinder operated by a solenoid valve. It rises and falls by 10, and the revolving cylinder 9 is horizontally rotated by a motor 11.

A vertical position sensor PV consisting of a potentiometer is attached to the base of the discharge cylinder 8, a turning position sensor PM is attached to the shaft of the motor 11, and a memory switch S1 is attached to the upper surface of the grain tank 5 on the pilot seat side. , S2, swing switch S3, up / down switch S4, left / right switch S5, storage switch S6 and set switch S7 (however, S4 and S5 are momentary switches), the sensors PV, PM and each switch S
The detection results and operation results of 1, S2, S3, S4, S5, S6, S7 are input to the microcomputer 12, which is a control device, as shown in FIG.
The microcomputer 12 outputs to the electromagnetic valve of the motor 11 and the hydraulic cylinder 10 according to the detection result and the operation result to control the up and down tilting and the left and right of the discharge cylinder 8.

The grain discharging operation in the above-mentioned combine will be described with reference to the flowchart of FIG. 5. When the grain threshing work is performed and the grain tank 5 becomes full, the combine or the trailer of a truck or the like having the combine parked on the road. Carrier
13, when the up / down switch S4 is turned up, the hydraulic cylinder 10 raises and tilts the discharge cylinder 8 up and down, and when it is tilted up to an appropriate height, the hand is released to release the up / down switch. Turn off S4, then left / right switch
When S5 is put in the left side, for example, the discharge cylinder 8 turns left by the motor 11, so that its discharge port 8a is shown in FIG.
Set to OFF at the position facing position (a) of 13.

When memory switch S1 is pressed in this state, the vertical position sensor
The detection values of PV and the turning position sensor PM are stored in the microcomputer 12 as PM1 and PM2.

Next, the left / right switch S5 is put on the right side to turn the discharge cylinder 8 rightward to the (a) position and stop it, and the other memory switch S2 is pushed to store the (a) position in the microcomputer 12. As a result, the swing range is set to (A) to (A).

The order of setting the swing range may be reversed.

Therefore, when the discharge clutch is put in, the shutter is opened, and the swing switch S3 is turned on, the motor 11 rotates in the forward and reverse directions and the discharge cylinder 8 swings in the above range, so that the grains in the grain tank 5 are lifted. It is sent and discharged, and is put into the carrier of the carrier 13 substantially uniformly.

When grain discharge is completed or the loading platform is full, turn the swing switch S3 to OFF and the motor returns to the start
When 1 is stopped and the storage switch S6 is continuously pressed after the completion of charging, the discharge cylinder 8 is automatically located at a portion extending from the grain tank 5 to the front portion of the threshing device 1 without operating the up / down switch S4 and the left / right switch S5. Are stored in the memory.

Following this, when the grain threshing work is performed and the grain tank 5 is full, the discharge cylinder 8 is automatically tilted and raised by simply pressing the set switch S7 after the combine is moved to the transport vehicle. When it turns horizontally, its discharge port faces the position (a) of the carrier, and when the swing switch S3 is turned on, the swing is performed as described above.

Usually, the stop position of the combine with respect to the transport vehicle 13 is substantially constant, but if the stop position is greatly deviated, the stop position of the combine is corrected or finely adjusted in the same manner as the above-described swing range setting. A re-memorization operation is performed with.

(G) Effect of the Invention In the invention, the threshing device 1 and the grain tank 5 are provided side by side on the machine base, and the grain tank 5 is provided with a discharge device which is undulated and horizontally rotatable. A combine of an undulation driving device and a turning driving device, wherein a vertical position sensor PV and a turning position sensor PM are attached to the discharging device, and a detected value of a turning limit of the turning position sensor PM is used as a turning angle in a control device. A swing switch S3 is provided in the control section for instructing via the control device that the swing drive device swings the discharge cylinder 8 of the discharge device within the swing angle range. When the swing range is first set in the state of being brought close to the carrier and the swing switch S3 is turned on, the discharge cylinder 8 of the discharge device automatically repeats swing within the set range, Almost all the grains to be loaded on the carrier It is possible to reliably prevent the swinging of the swinging machine from excessively grabbing while the grain leaks from the cargo bed, and the discharge part from colliding with an obstacle and being damaged, and performing a troublesome operation such as a manual operation. No need.

Further, once the turning range is set, from the next time, the combine is moved to a substantially constant position with respect to the transport vehicle, the discharging device is faced to the loading platform, and the swing switch S3 is pushed without requiring any special operation. The lifted grains can be loaded almost uniformly on the loading platform.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view showing a grain loading state, FIG. 2 is a plan view of the same as above, FIG. FIG. 5 is a control circuit diagram, and FIG. 5 is a flow chart diagram. 5 ... Grain tank, 8 ... Discharge cylinder, 10 ... Hydraulic cylinder, 11 ... Motor, PV ... Vertical position sensor, PM ... Swiveling position sensor, S1, S2 ... Memory switch, S3 ... Swing switch, S4 ... up / down switch, S5 ... left / right switch, S6 ...
… Storing switch, S7 …… Set switch

Claims (1)

[Scope of utility model registration request] 1. A threshing device 1 and a grain tank 5 are provided side by side on a machine stand, and a discharging device capable of hoisting and horizontally swiveling is mounted on the grain tank 5, and the hoisting drive device and swiveling are provided on the discharging device. A combine of driving devices, wherein the discharge device is provided with a vertical position sensor PV and a turning position sensor PM, and a detected value of a turning limit of the turning position sensor PM is stored in a control device as a turning angle, and a control unit In the grain tank in the combine, the swing drive device is provided with a swing switch S3 for instructing via the control device to swing the discharge cylinder of the discharge device within the range of the swing angle. Discharge device.