JPH0119627Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for vertically adjusting a raking belt in a reaping section of a combine harvester.

In other words, each raking wheel and lower conveyance chain are installed above the cutting blade at the rear lower part of each slanted lifting case, and the raking wheels and lower conveyance chain are installed from above each raking wheel to the rear of the lower side of each lifting case. In the reaping section of the combine, which is constructed by extending each raking belt in a forward-inclined position, each of the raking belts can be adjusted vertically, so that, for example, when harvesting a lodging culm, the tip side of the raking belt can be pulled up to raise the case. This allows for good raking immediately after raising while approaching the rear of the grain in a superior position, and depending on the condition of the grain culm, it can be carried out effectively and reliably without any disturbance from raising to conveyance, so that it can be carried out suitably. This is what we provide.

Next, the embodiment shown in the drawings will be described.

FIG. 1 shows a side view of the front part of the combine harvester, in which a reaping part B is installed in front of a threshing part A mounted on a platform supported by crawlers 6.
In this example, both raising cases 1a and 1b having tines 8a and 8b facing each other are installed in parallel to the rear of each grass dividing board 7 installed diagonally in front, and the rear lower part of both raising cases 1a and 1b is installed diagonally in parallel. A cutting blade 2 is installed horizontally across the cutting frames 9a and 9b on both sides, and the cutting blade 2
Scraping wheels 3a and 3b that engage with each other are mounted on both sides of the upper side, and cases 1a and 1b are pulled up from above both of the scraping wheels 3a and 3b.
Scraping belts 4a and 4b each having protrusions 10a and 10b at regular intervals on the outer periphery are extended toward the rear of the lower part of the wheel in a forward-inclined position, and one of the scraping wheels 3
A lower conveyance chain 5 is extended rearward from above a,
A tip conveyor 11 is installed on the upper side thereof, and a vertical conveyance chain 12 is provided diagonally at the rear, so that the structure is similar to the conventional structure.

A shaft rod 14 that is tilted forward is extended and fixed upward from the support frame 13 at the rear of the cutting blade 2.
A sprocket 15 for encircling the lower conveying chain 5 is integrally formed on the upper part of the scraping ring 3a which is loosely fitted into the raking ring 3a. A pulley 17 that is loosely fitted to the shaft rod 14 by passing the scraping belt 4a around it.
A cylindrical metal 18 that fits into the cylindrical metal 16 is disposed in a row at the lower part of the cylindrical metal 16, and the cylindrical metal 18 is slidably axially relative to the cylindrical metal 16, and is appropriately fitted by a bolt 19 inserted from the outside. The shaft rod 14 is installed so that it can be fixed.
The belt cover 20 is installed so that it can be fixed at any position with a set bolt 21, and the shaft 22 installed below the front end side of the belt cover 20, which extends to the rear of the lower part of the lifting case 1a, is provided with the scraper. A pulley 23 around which the belt 4a is hung is mounted on a shaft, and a stay 24 supporting the lower part of the shaft 22 extends forward and laterally, and extends from the reaping frame 9a to the lower part of the lifting case 1a. A plurality of support holes 26 are formed in the support rod 25, and the tip of the stay 24 is installed so that it can be connected with a bolt nut 27 in alignment with the support hole 26, so that the scraping belt 4a can be moved up and down, and When it is moved upward, the front end side A of the scraping belt 4a is raised so as to approach the back side of the case 1a.

Note that the lower conveyance chain 5 is installed so as to be driven from the rear side as in the conventional type, and its details will be omitted.

Further, the raking wheel 3b that meshes with the raking wheel 3a is also fitted onto a shaft rod 14a that stands upright in a forward-slanted manner, and although there is no sprocket 15 as described above, a raking belt 4b and a belt cover 20a are provided as well. is installed so that it can move up and down, and can be fixed to the shaft rod 14a with a set bolt 21a, and the stay 24a extending forward is installed so that it can be adjusted up and down with respect to the support rod 25a, and can be fixed with a bolt and nut 27a. and configure.

Therefore, when working with a combine harvester, when the grain culm is pulled up by both lifting cases 1a and 1b as in the conventional case, both raking belts 4a and 4b then raking between them, and both raking belts 4a and 4b are raked between them, and while being reaped by the cutting blade 2, both culms are pulled up. The wheels 3a and 3b scrape in the grain, and the lower conveyance chain 5 conveys it rearward, and the culm side is conveyed by the vertical conveyance chain 12, and the ear side is conveyed by the ear tip conveyor 11 while being supplied to the threshing section A.

In that case, the state in which the grain culm is raised by both raising cases 1a and 1b and then raked by both raking belts 4a and 4b can be changed depending on the state of the grain culm.

That is, remove bolt 19 and bolt nut 27, loosen set bolt 21, and pulley 1.
7. Move the belt cover 20 and the stay 24 up and down to move the raking belt 4a up and down, and similarly move the other raking belt 4b up and down and fix it, as shown in FIG. The solid line state and the state shown in FIG. 3 are obtained, and at a high position, the state shown in FIG. 4 is obtained.
Then, depending on the condition of the grain culm, the raking belts 4a, 4b are moved up and down to bring them closer to or away from the hoisting cases 1a, 1b. This means that the state of the scraping can be adapted.

In particular, when reaping a lodging culm, the raking belt 4
By moving a and 4b upward to approach the back sides of the lifting cases 1a and 1b, it is possible to scrape them in well after raising them.

In this way, the present invention is equipped with each raking wheel and a lower conveyance chain above the cutting blade at the rear lower part of each slanted lifting case, and also installs each raking wheel and lower conveyance chain from above each raking wheel. In the reaping section of the combine, where each raking belt extends toward the rear of the lower part of the harvester in a forward-inclined position, the leading end of each raking belt, which rotates in unison with each raking wheel, moves upward. As the raking belt approaches the rear side of each lifting case, the raking belts are installed so that they can be moved up and down. By raising the tip side and bringing it closer to the rear side of the case, it is possible to rak it well so that it does not become disordered after raising, and by adjusting it according to the condition of the grain culm, it is possible to adapt the raking from the raising to the raking, so that it can be raked in an orderly manner. It has the feature that it can be carried out and can be carried out suitably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of the front part of the combine, Fig. 2 is a top view of the main part, Fig. 3 is a side sectional view of a part thereof, and Fig. 4 shows its operation. An explanatory diagram is shown. 1a, 1b...Lifting case, 2...Mowing blade, 3
a, 3b... raking wheel, 5... lower conveyance chain, 4
a, 4b... raking belt, a... tip side.

Claims (1)

[Scope of utility model registration request] Each raking wheel and lower conveyance chain are installed above the cutting blade at the rear lower part of each slanted lifting case, and each raking wheel and lower conveyor chain are installed from above each raking wheel toward the rear of the lower side of each lifting case. As the leading end of each raking belt, which rotates together with each raking wheel, moves upward in the reaping section of a combine harvester, which is constructed by extending the raking belt in a forward-inclined position, each raking belt rotates upward. A device for vertically adjusting a raking belt, characterized in that each raking belt is installed so as to be vertically adjustable so as to approach the rear side of a case.