JPH0122435Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a culm collecting device for a combine harvester, in which a culm guide plate rotates in the direction of the ear tip in conjunction with the downward rotation of the culm collecting receiver when discharging the culm. .

In recent years, the use of straw has increased, and the use of culm collecting devices (droppers) to collect threshed culms without cutting has increased, but conventional culm collecting devices generally lack precision. It was common for the culms to be stepped on by wheels when reaping the next row (falling in the wrong position), or for the culms to be collected in poor alignment, requiring a great deal of effort.

In order to solve this problem, conventionally, as shown in FIG. There is also a model that is designed to be received on the collecting culm receiving plate while moving toward the mowed land side), but with only such a fixed stock guide plate, the height of the machine and the distance to the collecting culm receiving plate are limited. Due to the above reasons, there is a limit to the inclination angle θ of the guide plate RO, and not only is it not possible to fully exert the effect of bringing it closer to the mown field, but the base of the shed culm is always in sliding contact with the guide plate RO as it flows down. As a result, the tip side falls first and is caught obliquely on the culm receiving plate 2, causing variations in the weight sensing (oscillation) of the culm receiving plate 2, and even when released, the tip side falls from the field side. As the culms become disordered and the roots become poorly aligned,
A new inconvenience has arisen in that the culm begins to flow out and the culm receiving plate does not return properly.

The present invention was developed based on the above-mentioned circumstances, and its purpose is to release the culm and simultaneously release the culm into the mowed field by linking the culm collection receiver and the plant guide plate. It is possible to fully exert the action of pushing the culm toward the side of the mowed field, and it is also possible to set the inclination angle of the culm guide plate to a larger value, increasing the flow rate of the culm and mowing the culm. can be neatly received on the culm receiver in a nearly horizontal state,
The object of the present invention is to provide a culm collecting device for a combine harvester that further improves culm collecting performance.

The structure of the present invention will be described with reference to an embodiment shown in the drawings. Reference numeral 1 denotes a threshing section mounted on the rear part of a combine harvester, and a cutter section 2 is connected to the rear of the threshing section 1. 3 is the exit of the culm, and the threshing part 1
A culm conveyor 4 is spanned from the terminal end of a feed chain (not shown) to the culm outlet 3. 4' is a pinch rail. Reference numeral 5 denotes a switching plate, which is pivotally supported on the machine frame 2' of the cutter section 2 so that it can be raised and lowered, and the culm can be removed from the culm supply port 2'' by raising the switching plate 5 as necessary. By supplying it to the section 2, shredding it, and inverting it, it can be discharged uncut from the culm outlet 3 to the outside of the machine.

Reference numeral 6 denotes a collecting culm receiver, which is disposed below the culm outlet 3, and the collecting culm receiving plate 6 is rotated on the cutter machine frame 2' via holders 7, 7'. It is fixed to a freely supported rotating shaft 8, and is normally held in a substantially horizontal state by a tension spring 9. When a predetermined weight of waste culm is accumulated on the culm collection receiving plate 6, the spring 9 It is designed to resist and tilt downward.

Reference numeral 10 denotes a plant head guide plate, which is located on the plant head side in the culm falling path from the waste culm outlet 3 to the collecting culm receiving plate 6, and is arranged so as to be tilted downward toward the tip. As shown in the figure, the guide plate 10 is curved in an arc toward the tip side, and its lower end faces below one side of the culm receiving plate 6.
Further, the rear edges of both plates 10 and 6 are aligned as shown in FIG.

11 is a hexagonal shaft fixed to the machine frame 2' via holders 12, 12', and a collar 14 having a metal 13 orthogonally fixed to the upper surface of the hexagonal shaft 11 is attached so as to be slidable only in the axial direction. A rotating shaft 10' integral with the stock guide plate 10 is rotatably inserted through the metal 13 in a manner that is substantially perpendicular to the rotating shaft 8 of the collecting culm receiving plate 6 in a stepped manner. ing. 15 is a presser bolt for positioning, and 15' is a screw hole for screwing the presser bolt provided in the collar 14. By loosening the presser bolt 15 and sliding the collar 14 in the axial direction of the hexagonal shaft 11, the stock The guide plate 10 can be freely moved and adjusted in the culm direction in accordance with the culm length.

On the other hand, the stock side of the rotating shaft 8 of the collecting culm receiving plate 6 is also configured as a hexagonal shaft 8', and an arm 16 is slidably attached to the hexagonal shaft 8'. The arm 17 fixed to the rotating shaft 10' of the guide plate 10 is connected by a link 18, and these arms 1617 and the link 18 constitute a link mechanism M, and this link mechanism M allows the stock guide plate 10 to move. It is adapted to swing in the direction of the culm in conjunction with the vertical movement of the culm receiving plate 6.

In the figure, 19 is the R pin, and a is the culm.

Next, the operation of the present invention will be explained. If the waste culm is to be discharged from the machine without being cut, the switching plate 5 is laid down as shown in the figure to close the waste culm supply port 2'' to the cutter portion 2.

The threshed culm a, which has been transferred diagonally to the rear of the machine by the culm transporter 4, falls slightly downward from the culm exit 3, and then the culm head slides on the culm head guide plate 10 and is sequentially moved to the harvested land side. It flows down and is caught on the culm receiving plate 6.

At this time, the guide plate 10 is curved in an arc shape toward the tip side (already cut field side), so that the flow angle increases gradually, and is approximately vertical at the terminal end, so that the flow of the shed culm is also smooth and orderly. At the same time, the flow velocity on the stock side becomes faster as it goes downward, so the receiving plate 6
The received culm receiving posture is improved, and the roots are received on the collecting culm receiving plate 6 in an extremely well-aligned state and in a substantially horizontal position.

When the waste culms accumulated on the culm collecting plate 6 as described above reach a certain weight, the receiving plate 6 rotates downward against the spring 9 and is released into the field. The rotation shaft 8 of the stock guide plate 10 and the rotation axis 10' of the stock guide plate 10 are interlocked and connected via the link mechanism M, so the guide plate 10 moves toward the mowed field in response to the downward rotation of the receiving plate 6. Rotate only towards the end (see Figure 5). Due to this rotation of the guide plate 10, the guide plate 10 pushes out the culm a by the dimension L when releasing the culm, and due to this pushing action, the base of the culm a is further aligned and further It will fall in an orderly manner closer to the mowed field.

After the discharge of the discharged culm, the receiving plate 6 is quickly rotated back by the spring 9, and the guide plate 10 is also returned to its original position in conjunction with this.

As described above, the present invention allows the waste culms that have fallen from the terminal end of the waste culm carrier to be collected on the culm collecting receiver, and then to be released into the field by rotating the culm collecting receiver downward. In this case, on the plant head side of the culm falling route leading to the culm collecting body, a plant guide plate tilted downward toward the tip is provided with a turn that is substantially perpendicular to the rotating axis of the culm collecting body in a staggered manner. It is rotatably mounted via a moving shaft, and the culm collection receiver and the stock guide plate are interlocked and connected,
The culm guide plate is configured to rotate in the direction of the tip in conjunction with the downward rotation of the culm collection receiver, so when releasing the culm, the culm guide plate aligns the culm base to align the roots. In addition to further improving the performance, the discharge culm can be further pushed out toward the mown field side to fully exert its pulling action toward the mown field side, eliminating inconveniences such as trampling the discharged culm with wheels during the next reaping process. By improving the root alignment function and the function of moving the mowed land toward the mown side, the inclination angle of the stock head guide plate can be set larger than the conventional one, and the flow rate on the stock head side can be reduced. The culm can be received on the culm receiver in an orderly manner in a substantially horizontal state, and the culm collecting performance can be further improved and the labor required for collecting the culm can be reduced.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of the present invention, Fig. 2 is an exploded perspective view, Figs. 3 and 4 are a plan view and rear view, respectively, Fig. 5 is an explanatory view of the operation, and Fig. 6 is an operation of the conventional example. It is an explanatory diagram. In the figure, 4 is a discharging culm conveyor, 6 is a culm collecting plate, 8 is a rotating shaft, 10 is a stock guide plate, 10' is a rotating shaft, and a is a discharging culm.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) After accumulating the waste culms that have fallen from the end of the waste culm carrier on the culm collecting receiver, the culm collecting receiver can be rotated downward and released into the field. In this structure, on the plant head side of the culm falling path leading to the culm collecting body, there is a plant base guide plate tilted downward toward the ear tip, which is roughly at a different level from the rotation axis of the culm collecting body. It is rotatably mounted via orthogonal rotation axes, and the culm collection receiver and the plant head guide plate are interlocked and connected, and the plant head guide plate moves to the tip of the ear in conjunction with the downward rotation of the culm collector receiver. A culm collection device for a combine harvester, characterized in that it is configured to rotate in a direction. (2) The culm gathering device for a combine harvester according to claim 1, wherein the culm guide plate is configured to be movable and fixed in the culm direction in accordance with the culm length. (3) The culm collecting device for a combine harvester according to claim 1 of the utility model registration claim, characterized in that the stock guide plate is curved in an arc shape toward the tip side.