JPH06253648A - Cutting section structure of all stem-feeding type combine - Google Patents

Abstract

PURPOSE:To cut stems in good states in correspondence to the length of the stems by disposing two cutting devices for cutting the lover parts of the stems than their grain-having parts in correspondence to the length of the stems and covering the upper cutting device when the short stems are cut. CONSTITUTION:A cutting device 13 is disposed between the longitudinal direction positions and the vertical direction positions of a cutting device 9 for cutting the foot parts of planted stems and a cutting device 10 for cutting the lover parts of the stems than their grain-having parts. When short stems are cut, the lower parts of the stems than the grain-having parts are cut with the cutting device 13 in a state that a cover 15 is mounted on the cutting device 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting part structure of a whole culm throwing type combine, in which only a graining part is sent to a threshing device by a multistage cutting structure, and more specifically, it is good even if stem lengths are different. It is related to the structure for mowing.

[0002]

2. Description of the Related Art As this type of combine,
No. 9521 gazette is known. First, the first cutting device on the lower side cuts the stem culm from the root, and immediately after that, the second cutting device on the upper side cuts the bottom of the granulation part. by doing,
Only the required tip portion is sent to the threshing device. Then, the stalks are sent to the second cutting device while being conveyed backward in a sandwiching state by the sandwiching and conveying device so that the stalks can be surely cut below the granulation portion.

[0003]

In the combine having the above-mentioned structure, it is desirable to set the cutting position of the second cutting device directly below the granulation part in order to improve the threshing efficiency. However, if the height position of the second cutting device is adjusted to the long culm, the grain cutting part is cut in the short culm. Conversely, if the cutting position is adjusted to the short culm, it is not necessary in the long culm. The original part was also sent to the threshing device, and there was a difficulty in adapting to the culm length. Therefore, it is conceivable to adjust the height position of the second cutting device up and down to eliminate the above-mentioned inconvenience. However, in this case, the driving force can be transmitted while vertically moving the wide cutting device in parallel. The required structure is complicated and expensive, and it is difficult to realize. In addition, in the cutting of long culm when this vertical adjustment structure is adopted, the remaining culm length of the plant base part by the first and second cutting devices becomes considerably long, and it is difficult to skid when cultivating later. Therefore, there is also a problem that in the case of a long culm, it cannot actually be cut at the upper position. An object of the present invention is to provide a reaping unit capable of reaping satisfactorily in response to a difference in culm length while avoiding an adverse effect on post-processing of a stump during long culm cutting by devising a structure of a cutting device portion. In point.

[0004]

To achieve the above object, the present invention provides a first cutting device for cutting a root of a planting stem culm,
A first conveying device for sandwiching and transferring the stem culm cut by the first cutting device rearward in an upright posture, and a second cutting device for cutting the lower side of the granules of the stem culm sandwiched and conveyed by the first conveying device. A cutting device and a second transfer device for transferring the graining portion cut by the second cutting device to the threshing device are provided, and both the front-rear direction position and the vertical position are both the first cutting device and the second cutting device. It is characterized in that it is provided with a third cutting device set between the device and a detachable cover for covering the second cutting device from above.

[0005]

In the above characteristic construction, when the culm to be cut is short culm, the cutting work is performed with the cover attached to the second cutting device, and the cutting device is arranged at a position lower than the second cutting device. With the third cutting device, it is possible to cut below the granulation portion, and it is possible to avoid the disadvantage of cutting at the granulation portion. When the culm to be cut is a long culm, the mowing work is performed with the cover of the second cutting device removed, and the second cutting device with a high arrangement height does not leave much unnecessary plant part. It can be cut just below the grain. Further, since the third cutting device further divides the stump portion into upper and lower parts, the length of the stump sown in the field can be shortened, and post-processing such as easy slipping and recovery can be easily performed. or,
At the time of short culm cutting, when the graining portion cut by the third cutting device is conveyed backward, the tip end leading state due to the resistance caused by the lower end portion slidingly contacting the cover, that is,
It shows the behavior of being transferred backward in the state of falling backward.
This is because the transverse feed auger that is usually arranged after the second cutting device is composed of the rotating screw teeth around the horizontal axis, and therefore the granulation portion in the backward tilted state is in a posture that is easily caught by the screw. , The action which promotes the reliable lateral feeding function occurs. When the third cutting device is newly provided, the vertical movement structure is not required, and the transmission structure may be simply added with the input section, and the structure can be simplified as compared with the above-described vertical movement structure.

[0006]

Therefore, even if the third cutting device is additionally set and relatively simple modification, even if the culm length is long or short, it is possible to obtain a state in which the threshing efficiency of only the granulation part is excellent and the long cutting length is long. It was possible to provide a reaping section that facilitates post-treatment of residual culm even during culm harvesting.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 shows an all culm input type combine, 1 is a mowing unit, 2 is a threshing device, 3 is a control unit, 4 is a crawler traveling device, 5 is an unloader, and 6 is a traveling machine body. Mowing part 1
Is a vertical turning type weeding device 7, a raising device 8, first and second cutting devices 9 and 10 having a clipper structure, a pinching and conveying device (corresponding to a first conveying device) 11, a lateral feeding auger 12, and a first feeding device. Three
The head part A provided with the cutting device 13 and the base part B provided with the rear transfer device (corresponding to the second transfer device) 14 are detachably connected to each other, and the base part B is arranged around the horizontal axis P. It is attached to the traveling machine body 6 so that it can be raised and lowered.

As shown in FIG. 1, the third cutting device 13 is
Both the front-rear direction position and the up-down direction position are of a clipper type set between the first cutting device 9 and the second cutting device 10, and a cover 15 for covering the second cutting device 10 from above is provided. It is detachably equipped. The front end of the cover 15 in the mounted state extends obliquely downward and is set to reach the rear portion of the third cutting device 13.

The general operation of the reaper 1 will be described. The planting culm sown by the weeding device 7 is raised and the standing posture is set by the device 8, and the laterally squeezing nipping and conveying device 11 is used. It feeds backward while supporting the middle part of the body. In that state, first, the first cutting device 9 on the lower side cuts from the stock source, and then cuts on the lower side of the graining portion.

In the case of long culm When the planted stem culm is long, the cover 15 is removed beforehand as shown in FIG. Then, the stem culm that is conveyed by the sandwiching and conveying device 11 in a state of being cut at the stock source by the first cutting device 9 is then cut off by the third cutting device 13 at the lower part of the stock source, and then the second cutting device. The cutting device cuts just below the graining part, and unnecessary unnecessary culms on the plant side are divided into short pieces before falling to the field. Since the third cutting device 13 and the nipping / conveying device 11 are vertically separated from each other, the nipping / conveying device 11
An auxiliary transporting device 16 (having the same structure as the sandwiching transporting device 11) having a short front-rear length that is simultaneously driven with is attached to a position directly above the third cutting device 13 so that cutting can be performed satisfactorily.

In the case of short culm When the planted stem culm is short, as shown in FIG.
Be installed in advance. Then, the stem culms cut at the root of the plant and conveyed by the sandwiching and conveying device 11 are cut by the third cutting device 13 under the granulating portion while being supported by the auxiliary conveying device 16, and the residual culm is Fall to the field. And
The tip side stem culm conveyed by the sandwiching and conveying device 11 comes to be conveyed to the lateral feed auger 12 in a backward tip tip posture by sliding the lower end thereof into contact with the cover 15. Therefore, the granulation portion can be fed in a posture orthogonal to the screw teeth 12a of the lateral feed auger 12, and a reliable and favorable lateral feed function can be expected.

[Other Embodiment] The cover 15 may be shaped so as to cover only the second cutting device 10 as shown in FIG. Further, as the third cutting device, a large number of disc type rotary blades may be arranged in parallel.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view of a head portion when cutting a short culm.

FIG. 2 is a side view of a head portion when mowing a long culm.

[Fig. 3] Side view of all culm throw type combine

FIG. 4 is a side view showing another shape of the cover.

[Explanation of symbols]

 2 Threshing device 9 1st cutting device 10 2nd cutting device 11 1st conveying device 13 3rd cutting device 14 2nd conveying device 15 Cover

Claims (1)

[Claims] 1. A first cutting device (9) for cutting a plant base of a planted stem culm, and a first conveyance for sandwiching and transferring the stem culm cut by the first cutting device (9) rearward in an upright posture. Equipment (11)
A second cutting device (10) for cutting the lower part of the granulation part of the stem culms sandwiched and conveyed by the first conveyance device (11); and the granulation cut by the second cutting device (10). A second transport device (14) for transferring the parts to the threshing device (2), and both the front-back direction position and the vertical position are both the first cutting device (9) and the second cutting device (10). And a cover (15) for covering the second cutting device (10) from above.
All culm throw type combine harvester structure with removable attachment.