JPS6113765B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention automatically moves a waste straw binding device provided at the rear of a threshing device in the direction of its culm based on the culm length detection result of a culm length detection sensor provided in front of the threshing device. This invention relates to a combine harvester equipped with a mechanism for changing the position of the harvester.

In such a combine harvester with a waste straw binding device, by providing the culm length detection sensor at a position sufficiently in front of the waste straw binding device, it is possible to cause a delay in the position change operation of the waste straw binding device based on the culm length detection result. This allows the bundling operation to be carried out reliably and accurately at the appropriate position according to the culm length, but on the other hand, since the length of the transport path from the culm length detection position to the waste straw binding device is long, it is difficult to change the straw removal posture during transport. There was a problem in that the disorder was likely to occur, and due to the disordered posture, poor bundling was likely to occur, such as the waste straw being discharged without being tied.

In view of this, an object of the present invention is to provide a culm length detection sensor at the front of the threshing device, and to prevent bundling defects caused by disturbances in the straw removal posture during transportation.

The combine harvester with a waste straw binding device according to the present invention has the following features:
In the device described at the beginning, a sensor is provided at a position close to the front of the waste straw binding device to detect when the attitude of the waste straw has changed beyond a certain level, and when this sensor performs a detection operation, the The present invention is characterized in that it is configured to change the position of the waste straw binding device with priority given to the culm length detection result.

That is, a sensor close to the waste straw tying device detects a change in the posture of the waste straw that exceeds a certain level, and the device displaces the waste straw tying device to a position where it can bind the waste straw whose posture has changed, regardless of the culm length detection result. As a result, even though a culm length detection sensor is installed in front of the threshing device to ensure that the bundling action is performed at the appropriate position according to the culm length, it is possible to prevent poor results due to disordered straw removal posture. Ivy. For post-processing such as drying of the bundled waste straw, it is advantageous to use the tip standard of tying the straw at a certain distance from the tip, but it is advantageous to use a sensor that detects changes in posture as described above and its detection. Due to the priority of the operation, it is now possible to bundle the waste straw based on the tip even if the posture is disturbed during conveyance. In addition, since the culm length detection sensor is provided in front of the threshing device, this culm length detection sensor can easily be used as a sensor for automatic handling depth adjustment provided in front of the threshing device, simplifying the overall structure. It also has side effects.

Hereinafter, embodiments of the present invention will be described based on the drawings.
A sensor that detects the culm length by checking whether or not three contactors 3a attached to the lifting device 6A at intervals in the longitudinal direction of the grain culm are in contact with the tip of the raised grain culm. 3, the waste straw sent out from the threshing device 1 in a sideways position is bundled and released in a certain amount in that sideside position, and
The main body 2A of the waste straw binding device 2 is configured to be movable in the direction of the waste straw culm length with respect to the frame 2B for mounting on the machine.
A mechanism 4 for moving B in the above-mentioned direction is provided, and the mechanism 4 is automatically operated based on the culm length detection result by the sensor 3, thereby moving the waste straw in the culm length direction according to the culm length. It is configured to be tied at an appropriate position, and
Based on the culm length detection result, a vertical conveyance device 7 transports the harvested grain culm in an upright position to the starting end of the feed chain 1a of the threshing device 1 in a horizontal position.
In a combine harvester configured to automatically adjust the handling depth by moving the handle in the culm length direction,
It is structured as follows.

That is, at the front of the waste straw binding device 2, at a position close to this, that is, at the end of the waste straw feeding path A with the forced feeding device B from the threshing device 1 to the waste straw binding device 2, there is a The contact body 5a releases contact with the tip of the removed straw when the position of the tip of the removed straw shifts toward the plant base in the culm length direction due to a change of more than a certain level, and the A contact body 5b that releases contact with the discarded straw stock base when the straw stock base position is displaced toward the tip side in the culm length direction.
A sensor 5, that is, a contact body 5a, 5 having
A sensor 5 is provided to detect that the straw removal posture has changed beyond a certain level by the contact release operation of b, and when this sensor 5 performs the detection operation, the mechanism 4 The binding device body 2A is configured to be repositioned to an appropriate position between the contact bodies 5a and 5b.

The mechanism 4 includes a feed screw 4A positioned along the culm length direction, and an electric motor 4B that rotationally drives the feed screw 4A based on the culm length detection result and attitude detection result.

Note that the contact body 5a of the attitude detection sensor 5,
5b, in order to respond to changes in the length of the removed straw culm,
It is configured so that its position can be changed and fixed freely in the length direction of the waste straw culm.

Further, in the present invention, the contact bodies 5a and 5b of the attitude detection sensor 5 may be configured to move automatically based on the culm length detection result, and furthermore, a large number of contact bodies may be arranged in the direction of the length of the removed straw culm. Installed in parallel,
It may be configured to selectively use these contacting bodies based on the culm length detection results.

[Brief explanation of the drawing]

The drawings show an embodiment of a combine harvester with a waste straw binding device according to the present invention, and FIG. 1 is an overall side view, and FIG.
3 and 3 are schematic plan views of the main parts, respectively. 1... threshing device, 2... straw binding device, 3...
...Culm length detection sensor, 4...mechanism, 5...sensor.

Claims (1)

[Claims] 1. Discarded straw binding device 2 provided at the rear of the threshing device 1
A combine harvester is provided with a mechanism 4 for automatically changing the position in the direction of the culm based on the culm length detection result of a culm length detection sensor 3 provided in front of the threshing device 1, A sensor 5 is provided at a position close to the front of the device 2 to detect that the posture of the removed straw has changed beyond a certain level, and when this sensor 5 performs a detection operation, the removed straw binding device 2 A combine harvester with a waste straw binding device, characterized in that the combine harvester is configured to change the position of the culm with priority given to the culm length detection result. 2. The combine harvester with a waste straw binding device according to claim 1, wherein the culm length detection sensor 3 also serves as a sensor for automatically adjusting the handling depth in the threshing device 1 according to the culm length.