JPS6345866Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is based on a binding machine of a grain culm harvesting machine such as a combine harvester that discharges bound grain culms bound through a binding machine installed in a grain culm harvesting machine to the outside of the machine. It relates to a release device.

Conventionally, in the case of a machine in which the harvested grain culms were tied in a predetermined amount using a binding machine and discharged outside the machine, the grain culms that were harvested at the front side of the machine and transported to the rear were tied up with a binding machine. It is known that the grain is discharged outside the machine while maintaining the bundling posture, but in this type, the stalk side is bulkier than the tip side, so the stalk side is not connected to the stalk side of the subsequent grain culm. It had the disadvantage that it was easy to connect and that it was not possible to release the bound grain culm smoothly. Therefore, it has been proposed that immediately after tying, the stem side of the tied grain culm is rotated using the tip side as a fulcrum to separate the stem sides that tend to overlap before being discharged outside the machine. When grain culms made of long culms or wet wood are tied together and then released by rotating the stem side using the ear tip as a fulcrum, there is a large inertial force on the stem side due to the rotation. A new drawback arises in that the grain culm may work and rotate too much beyond a predetermined limit, or the bundled grain culm may slip out of the clamping part, making it difficult to smoothly transfer the grain to the discharge side.

This invention was devised in order to eliminate these drawbacks in view of the actual situation described above, and its purpose is to bind together by rotating the tip side as a fulcrum like long culm or wet wood. Even if a large inertial force is applied to the grain culm, the grain can be transferred smoothly to the release side by restricting the rotation of the stock side, preventing it from rotating too much or slipping out of the clamping part. It is an object of the present invention to provide a binding grain culm discharge device for a binding machine in a culm harvesting machine.

The configuration of the present invention will be described with reference to an embodiment shown in the drawings. 1 is a threshing machine mounted on the combine harvester, 2 is a grain conveying chain that transports the threshed grain culm to the rear of the machine, and 3 is a tying machine installed at the rear of the machine. The grain culms that have been threshed in the grain culm conveying chain 2 (not shown) are collected in the convergence section 4 of the tying machine 3, and are bound by the tying section 5 into predetermined amounts. There is. Reference numeral 6 denotes a throwing rod provided in the binding machine 3;
The bundled grain culm A is thrown toward the rear. Reference numeral 7 denotes a conveyance chain on the ear end side of the bundled grain culm A, and the conveyance chain 7 has a conveyance start end located near the ear tip side of the bundling part 5, a conveyance end end behind the start end on the cut field side, and It is installed diagonally so that it is located upwards. Above the conveyor chain 7 is a clamping rod 8.
The starting end side of the holding rod 8 is curved toward the front and upper part of the machine body, and the tip side of the bundled grain culm A thrown by the throwing rod 6 is connected to the curved part 8a of the holding rod 8 and the conveying chain 7. The bundled grain culm A is received and clamped between the grain culm A and the conveyance start end of the grain culm A, and is configured such that the stock end side of the bundled grain culm A serves as a rotation fulcrum for the ear tip side that rotates toward the rear of the machine body.

Reference numeral 9 denotes a receiving guide for supporting the stock end of the bundled grain culm A, and one end of the receiving guide 9 is located closer to the stock end than the bundling part 5, and supports the bundled grain culm A thrown out from the bundling machine 3. It is fixed to the body side so as to support the base side of the transport chain 7, and the other end is fixed to the terminal end of the conveyance chain 7. In the intermediate part of the receiving guide 9, located behind the starting end of the conveyance chain 7 in the longitudinal direction, the receiving guide 9 is bent into an inclined step shape so that the upper conveying side of the receiving guide 9 is lower and the lower conveying side thereof is higher. A restriction body 10 is configured, which limits the amount of rotation of the bundled grain culm A by coming into contact with the stock side of the bundled grain culm A which is in a rotating state due to being thrown by the throwing rod 6. ing.

Next, the operation of the present invention constructed as described above will be explained. After being threshed by the threshing machine 1, the grain culm is transported by the grain culm conveying chain 2. The grain culms are collected by the convergence unit 4 of the tying machine 3, and are bundled by the tying unit 5 into predetermined amounts. At this time, the tip side of the bundled grain culm A immediately passes through the curved part 8a of the clamping rod 8 and the conveying chain 7.
The stock head side rotates to the rear of the machine centering on the clamped ear tip side due to the inertia force at the time of release, and the stock head part moves to the rear of the grain culm that follows. It is separated from the stock capital. Therefore, the bulky stock side of the bound grain culm A does not overlap with the stock base of the following grain culm.

During such a series of rotations of the tied grain culms A, the stock side of the tied grain culms A in the rotating state is moved to the conveyor chain 7.
When reaching the rear of the conveyance start end of , that is, the rear of the receiving and clamping position formed by the curved portion 8a of the clamping rod 8 and the conveyance start end of the conveyance chain 7, there is a step-like restriction where the upper side of the conveyance of the receiving guide 9 is lower than the lower side of conveyance. Since rotation is restricted by contacting the body 10, even if the grain is heavy and rotation generates a large inertial force, such as when long culms or grain culms made of wet wood are tied together. , the rotation can be reliably restricted by the restriction body 10, and it is possible to prevent the bundled grain culm A from being disturbed in its conveying posture or falling off from the conveying chain 7 due to excessive rotation;
The tied grain culm A can be transferred to the conveyance chain 7 in an appropriate posture and discharged to the mown field side. Moreover, since the restricting body 10 is sloped such that the upper side is lower and the lower side is higher, even if the restricting body 10 restricts rotation, the stock end side of the bundled grain culm A will be pulled by the restricting body 10. Without this, the transfer from the restricting body 10 to the downstream side becomes smooth.

In summary, the present invention uses a bundled grain culm discharging device installed at the rear of the binding machine, the tip side of the bundled grain culm is held and conveyed by a conveyance chain, and one end of the bundled grain culm is conveyed by a receiving guide located closer to the plant base than the binding part. The stem side of the bundled grain culm supported by the grain culm is configured to be rotated using the ear end side as a fulcrum and released to the mown field side, and the receiving guide has a structure at the rear of the conveying clamping position of the bundled grain culm. A restriction body is provided to restrict the rotation of the tied grain culm on the stock side, and the restriction body is formed in a stepped shape where the upper side of the grain culm is lower than the lower side of the grain culm. Although the base side can be rotated to separate the bulky stock side from the stock side of the following grain culm, the step-shaped restriction body located behind the conveying clamp position of the bundled grain culm is By restricting the rotation of the stock side, even if the inertial force is large, such as when tying long culms or grain culms made of wet wood, it is possible to prevent them from rotating too much or falling out of the clamping parts. It can be prevented and discharged to the mowed field side in an appropriate posture.

[Brief explanation of the drawing]

The drawings show an embodiment of a bundled grain discharge device of a binding machine in a grain culm harvester according to the present invention, and FIG. 1 is an overall plan view, and FIG. 2 is a rear view thereof. In the figure, 1... binding machine, 5... binding section, 7... conveyance chain, 9... receiving guide, 10... limiting body.

Claims (1)

[Scope of utility model registration request] The bundled grain discharge device installed at the rear of the binding machine is
The tip side of the tied grain culm is held and conveyed by a conveying chain, and the stem side of the tied grain culm, which is supported by a receiving guide whose one end is located closer to the stem side than the bundling part, is rotated using the tip side as a fulcrum. The receiving guide is provided with a restriction body located behind the conveyance clamping position of the bundled grain culm and restricting the rotation of the bundled grain culm on the side of the stock, A bundled grain culm discharge device of a binding machine in a grain culm harvester, characterized in that the restricting body is formed in a stepped shape where the upper side of the conveyance is lower than the lower side of the conveyance.