JPS6438Y2 - - Google Patents

Description

[Detailed description of the invention] It is desirable that the waste straw discharged from the thresher of a combine harvester be left in an orderly manner on a mown field as far away as possible from uncut land to prevent it from being trampled by crawlers. Therefore, in a combine harvester with a knotter attached to the rear of the machine, the tied bundles of straw are transported by a conveying device such as a chain installed diagonally toward the mown field, and then released onto the mown ground. During the transfer of straw bundles, the tips and stems of the straw can hang down, causing problems with the culms, or the culms can get wrapped around the chain, which can lead to problems. There are some that support the base and tip of the plant, but with these types,
If the culm is long or short, a part of the culm will droop and the posture will be disturbed.Especially, when the culm is released from the knotter and transferred to the chain, the straw bundle will be noticeably bent due to the difference in length and weight. The transport posture of the
For example, when a bundle of straw with a long stem is transported, the stem lags behind and the angle between the stem and the chain is an acute angle (the tip side leads the chain); Since the shells are transported with their stems leading and the above angle being an obtuse angle, at the end of the chain, that is, at the discharge section, those with long stems fall first.
Short ones fall from the base of the stock first, and the falling position is not consistent, and as a result, it is not possible to reliably release them in an orderly position towards the harvested field, which obstructs the path of the combine during reaping work. There were disadvantages such as dryness and reduced efficiency in later processing of the released straw bundles.

In view of this, the present invention provides guide plates on both sides of a conveying device consisting of a chain that support the tip and the base of the straw, respectively, to support the straw bundles being transferred, thereby preventing the straw bundles from wrapping around the conveying device. This is to prevent the culm from being disturbed, and the angle between the end edge of the guide plate and the conveying device can be varied in plan view, so that it can be freely adjusted in response to changes in the conveying posture of the straw bundles. This is an attempt to solve all the shortcomings of the conventional system at once.

Hereinafter, one embodiment of the present invention will be explained with reference to the drawings. Reference numeral 1 is a threshing machine mounted on the base of a combine harvester, and behind the feed chain 2 there is a waste straw consisting of a straw removal chain 3 and a straw removal belt 4. A straw conveying device is installed, and a guide rail 5 is installed at the rear of the threshing machine 1.
The knotter 6 is attached so as to be adjustable in lateral movement. The knotter 6 has a packer 7, a knot 8, a discharge arm 9, etc. below the collecting culm, and is configured to bind a certain amount of waste straw and discharge it onto the straw bundle conveying chain 10. The straw bundle conveying chain 10 has a starting end close to the discharge arm 9, a terminal end facing the mown field, and is formed with a slightly upward slope as viewed from the rear.

Reference numeral 11 denotes a chain rail provided close to and parallel to the straw bundle conveying chain 10. Reference numeral 12 denotes a tip resistor, which provides resistance to the tip side of the straw bundle discharged from the knotter 6 and improves the posture of holding the straw bundle in the straw bundle conveying chain 10. 13 and 14 are guide plates provided on both sides of the straw bundle conveying chain 10, and the tip guide plate 13 supports the tip side of the straw bundle conveyed by the chain 10, and is formed between the chain 10 and the knotter 6. In addition, the stock head guide plate 14 is provided to support the stock head side, and the terminal ends of both guide plates 13 and 14 At the end of the chain 10, it is connected to an adjustment guide plate 15, which will be described below. 15 is both guide plates 13,1
4 is an adjustment guide plate attached to the tip of the second
As shown in the figure, two molded plates are formed so that their upper sides overlap the back surfaces of the guide plates 13 and 14, their sides hang down at almost right angles, and their bent portions match the curved line of the end of the chain 10. 15a and 15b, which are connected by a mounting bracket 15c having a mounting hole 17. Reference numeral 16 denotes a frame for supporting the straw bundle conveying chain 10 and fixing the guide plates 13 and 14, and a bolt 1 is attached to the back side of the tip end of the frame 16.
6a is provided protrudingly. and the adjustment guide plate 1
5 is attached to the frame 16 by inserting the bolt 16a into the mounting hole 17, and the bolt 16
The guide plate 15 is rotatably adjustable around a, and the angle θ between the hanging side of the guide plate 15 and the straw bundle conveying chain 10 is variable in plan view.

The present invention is constructed as described above, and the waste straw discharged from the waste straw conveying devices 3 and 4 is transported to the packer 7.
is scraped into the knotter 6, and when the amount reaches a predetermined amount, it is bundled and released by the release arm 9. The tip of the released straw bundle is connected to the tip resistor 12.
While being subjected to resistance, the stock head side makes a large turn and is held between the chains 10 and 11 in an attitude almost perpendicular to the straw bundle conveying chain 10, and the ear tip and the stock head part are respectively attached to the guide plate 13. , 14 while being transported to the end of the chain 10. At that time, if the angle θ between the hanging side of the adjustment guide plate 15 and the straw bundle conveying chain 10 is adjusted to be approximately a right angle in plan view, the straw bundles released from the end of the chain 10 can be The adjustment guide plate 15 falls smoothly without being disturbed in a posture facing the direction of the hanging side, that is, a posture perpendicular to the chain 10.

However, if the culm is particularly long or the straw is heavy, when it is released by the discharging arm 9, the turning of the straw is delayed, and the straw is held in a backward position by the bundle conveying chain 10, where it remains as it is. Chain 10 in the posture of
In such a case, if the adjustment guide plate 15 is adjusted to an acute angle so that the angle θ matches the direction of the culm being transferred,
The straw bundle falls smoothly in that position. Contrary to the above, if the culm length is short or the culm is light, the culm will be held and transferred to the chain 10 in a forward position, so align the adjustment guide plate 15 in the direction of the culm and adjust θ. Just adjust it to make it an obtuse angle.

FIG. 5 shows another example, in which a focusing device is provided below the adjustment guide plate 15 to collect a certain amount of straw bundles and release it, and the focusing device is rotated integrally with the adjustment guide plate 15. In the figure, the adjustment guide plate 15 connected to the terminal ends of both guide plates 13 and 14 is connected to the support bolt 1 of the above-mentioned embodiment.
6a, a support rod 1 having a receiver 21 below
The support rod 19 is rotatably supported by a tip boss portion 18a of a support body 18 protruding outward from the bottom of the frame 16. Reference numeral 20 denotes an adjustment fixing bolt provided on the boss portion 18a. The receiver 21 is formed by arranging a plurality of spokes facing outward in a fork shape, and is located parallel to and directly below the adjustment guide plate 15, and is provided at the lower part of the support rod 19. It is pivotally supported by a pin 19b inserted through a bifurcated bracket 19a so as to be able to rise and fall in the vertical direction, and is urged upward by a spring 23. A guide rod 22 projects from the lower end of the adjustment guide plate 15 toward the base of the receiver 21 .

In this way, since the receiver 21 is adjusted integrally with the adjustment of the adjustment guide plate 15, the adjustment guide plate 15
The straw bundles falling along the hanging side are guided by the guide rod 22 and fall onto the receiver 21 without being disturbed in direction, and are concentrated there. is tilted downward, and the straw bundles are left in an orderly manner on the ground in the same posture as when they fall from the adjustment guide plate 15, making post-processing of the straw extremely efficient.

The present invention is provided with a conveying device consisting of a chain installed diagonally behind the knotter that is attached to the combine harvester in order to transport the bundled bundles to the already cut field side. In addition to providing a guide plate that supports the tip of the head and the base of the stock,
In a plan view, since the angle θ between the end edge of both guide plates and the conveying device can be varied, the tip and stock portion of the straw bundle can be supported on both sides of the straw bundle conveying chain, respectively. Regardless of the material conditions of the straw bundle, no matter what kind of culm it is, problems such as transportation disturbance due to hanging, straw catching, and wrapping will not occur. Because the direction is stable and the direction is fixed, the angle between the conveyor chain and the conveyor chain can be varied by connecting an adjustment guide plate at the end of the guide plate.
By freely adjusting this angle to the transfer posture of the straw bundles on the conveyance chain, the straw bundles can be dropped smoothly and orderly without being disturbed while maintaining the transfer posture. That is, although the conveying posture by the conveying chain differs depending on the length and weight of the grain culm, it is sufficient to freely adjust the adjustment guide plate accordingly.

In this way, the straw bundles are left in an orderly manner at a constant angle parallel to the end edge of the adjustment guide plate in plan view, so the machine running section does not step on the straw bundles during reaping work, and the combine This allows the work to be carried out smoothly from beginning to end, and has practical effects that greatly improve work efficiency, including post-processing of straw bundles.

[Brief explanation of the drawing]

The drawings show an embodiment of a combine equipped with the device of the present invention, and FIG. 1 is an overall plan view;
2 is an exploded perspective view of the main parts, FIG. 3 is a plan view of the main parts, FIG. 4 is a rear view of the main parts, and FIG. 5 is a perspective view of the main parts showing another example. 10... Straw bundle conveyance chain, 13... Ear tip guide plate, 14... Stock source guide plate, 15... Adjustment guide plate,
21...Receptor.

Claims (1)

[Scope of utility model registration request] At the rear of the knotter attached to the combine harvester, a conveying device consisting of a diagonally installed chain is installed to transport the bundle bundles to the harvested field. A bundle conveying device for a combine knotter, characterized in that a bundle conveying device for a combine knotter is provided, and the angle θ between the terminal end sides of both the guide plates and the conveying device is variable in plan view.