JPS6331550Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a threshing culm transfer device of a threshing machine, and more specifically, a straw attached to the side of the feed chain of the threshing culm transfer device so as to face the feed chain. This invention relates to a straw pushing up device in a threshing culm transfer device which is formed to be vertically movable by interposing a link mechanism in the lower part of the pushing up device.

Conventionally, the straw lifting device installed in threshing machines is fixed to the machine body with screws, etc., and is configured so that it cannot move up and down. As the grain culm becomes longer, the force used to clamp the grain culm tends to become uneven, and as this clamping force cannot be adjusted, the grain culm falls out of the clamping rod and is rolled into the threshing machine, making threshing impossible and reducing the threshing process. This was a cause of reduced efficiency.

In this invention, a pinning rod is elastically biased on a base rod, and this base rod is supported and fixed in a vertically movable manner by two link mechanisms, and is used as a feed chain of a threshing machine.
During threshing, by adjusting the clamping force between the straw lifting device and the clamping rod installed at the lower side of the straw,
To provide a straw pushing device in a threshing culm device for preventing grain culms from being drawn into a threshing machine and improving threshing efficiency.

The embodiment of this invention will be explained in detail based on the drawings.
The combine harvester is equipped with a reaping device 14 consisting of a grass cutting body 11, a grain culm pulling device 12, a cutting blade 13, etc. at the front of the machine, and a threshing machine 15 at the center of the machine. The opening 19 of this threshing machine 15
A feed chain 16 is rotatably attached to the feed chain 16, and a clamping rod 1 is placed directly below the feed chain 16 in contact with the feed chain 16. In addition, a straw lifting device B is attached to the lower side of the feed chain 16 of the threshing machine 15, and the straw grain culm cut by the above-mentioned reaping device 14 is transferred to the feed chain 16 and the straw lifting device B. The grain is formed so that it can be threshed while being held in place. The above-mentioned reaping device 14 and threshing machine 15 are connected to the traveling roller 1.
It is placed on 8.

The straw lifting device B described above elastically biases the pinning rod 1 on the upper part of the base rod 2 via springs 3, 3, 3, and fixing the support rod 4 to the lower end of the pinning rod 1 to push the lower end. It is inserted into the base rod 2 so that it can move up and down, and the above-mentioned springs 3, 3,
3 is inserted.

Furthermore, this straw lifting device B, the base rod 2 that constitutes
One end of a short link 5 and one end of a long link 6 are pivoted 5' and 6', respectively, at both ends of the link 5, and the other end of the link 5 is pivoted 10 to a part 20 of the fuselage of the combine A. It forms a fulcrum. On the other hand, the link 6 is pivotally connected at its center to a fulcrum 7 fixed to a part 20 of the fuselage. The lower half 6b of the link 6 is pivotally connected 6'' to the tip of the adjustment bolt 8.
Support points 10 and 7 fixed to a part 20 of the machine body are located at the rear of the pivoting parts 5 and 6 of the links 5 and 6 to the base rod 2 with respect to the straw transfer direction. This adjustment bolt 8 is inserted into a support frame 21 which is erected and fixed to the body 20 of the combine harvester A, and is configured to be tightened and fixed from both sides with nuts 9, 9'.
Incidentally, the upper halves 6a of the links 5 and 6 are shown as parallel links in FIG.

Loosen nuts 9, 9' and adjust bolt 8 as described above.
When pushed forward, the link 6 rotates counterclockwise via the fulcrum 7, allowing the base rod 2 to be lowered to the position of the imaginary line. At this time, the other end of the base rod 2 is pivoted 5'
The link 5 also rotates counterclockwise about the fulcrum 10.

Furthermore, when the adjusting bolt 8 is pulled toward the user, the link 6 rotates clockwise about the fulcrum 7, thereby allowing the base rod 2 to be pushed upward.

By adjusting the nuts 9, 9' and moving the adjusting bolt back and forth in this way, the base rod 2 can be easily adjusted.
As a result, the clamping rod 1, which is elastically biased onto the base rod 2, also moves up and down.

In this invention, a dustproof cover 2 is provided approximately parallel to the feed chain 16 and above the conveying grain culm 23 and outside the upper end of the feed chain cover 24.
2 is extended, and this dustproof cover 22 is formed upward and fixed.

Therefore, even if a strong wind hits the straw being transported through the feed chain 16, the dust cover 22 blocks the strong wind, so that the straw hakama will fly over the top surface of the threshing machine 15 and toward the driver's seat 25. This makes it easier to operate Combine A.

In addition, since the wind is once applied to the dustproof cover 22, the wind blowing on the upper surface of the straw during transportation is weakened to prevent the scattering of the straw.

As mentioned above, the embodiment of this invention has been described, but this invention is not limited to the above-mentioned embodiment. 6'', as shown in FIG. The half part 6b can be configured to be moved left and right and rotated using the link 6 as the fulcrum 7.Also, as shown in FIG. 29... is abutted on the support plate 26 having a hole therein, and the connecting pin 30 is inserted between the lower end 6'' of the lower half 6b of the link 6 and the support plate 26, and the stop pin 31 is attached to one end of the connecting pin 30. A base rod 2 that is penetrated and changes the position of the link 6 to the left and right to elastically bias the pinion rod 1.
It can also be moved up and down.

According to this invention, one ends of the two links 5 and 6 are pivotally connected to the lower part of the straw lifting device B, one end of the adjustment bolt 8 is pivotally connected to one link 6, and the link 6 is rotated around the fulcrum 7. The lower half 6b of the link 6 can be moved from side to side by rotating it or by screwing one end 6'' of the lower half 6b of the link 6 onto the support plate 26 having a long hole 25' or a mounting hole 29. Since the straw lifting device B can be moved up and down by the operation of , and the grain culm will no longer fall out from the ram.
In particular, since the fixed fulcrums 10 and 7 of each link 5 and 6 are provided at the rear of the pivot points 5' and 6' of the links 5 and 6 to the base rod 2 in the direction of straw transfer, The straw transfer resistance applied to the rod 1 acts as a force that presses the base rod 1 in the direction of the straw.

Therefore, the pivot parts 5', 6' and the fulcrums 10, 7
Even if there is play in the structure or the links 5 and 6 are bent, the force pushing up the straw is prevented from decreasing.

As a result, threshing performance can be improved,
Harvesting workability was significantly improved.

[Brief description of the drawings]

Fig. 1 is a side view of a combine harvester showing an embodiment of this invention, Fig. 2 is an enlarged view of the main parts of the straw pushing device, Fig. 3 is an enlarged cross-sectional view of Fig. 2, and Figs. FIG. 6 is a side view showing an embodiment of the link mechanism of this invention, FIG. 6 is a front view showing a state in which the dustproof cover is attached, and FIG. 7 is a side view of the same. 1: Anchor rod, 2: Base rod, 3: Spring, 5,
6: link, 7, 10: fulcrum, 8: adjustment bolt,
22: Dust cover, 26: Support plate for link 6.

Claims (1)

[Scope of utility model registration request] A straw pushing-up device in a straw transport device for a thresher, comprising: a clamping rod 1 elastically biased to the upper part of a base rod 2; upper ends of links 5 and 6 pivotally attached 5', 6' to both ends of the base rod 2; lower ends of the links 5 and 6 pivotally attached to fulcrums 10 and 7 fixedly provided rearward of the pivotal attachment parts 5', 6' in the straw transport direction; one of the links extending downward from the fulcrum, and a fixing mechanism for attaching this extension to the thresher 15 so as to be freely movable in position.