JPH0530601Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a rake-up and conveyance device from the reaping section to the threshing section of a DC combine harvester that integrally feeds grain culms and ears into the threshing section. It is something.

(b) Prior Art Conventionally, in order to prevent the grain culm A from getting caught in the raking slats in the feeder house of a DC combine harvester, the number of raking slats has been increased and each raking slat has been A known technique is to prevent the feeder chain from getting caught by configuring the tip and rear ends of the raising slats to overlap, thereby preventing the completely sealed raising slats from entering the inside of the feeder chain. .

For example, see Utility Model Application Publication No. 16332/1983.

In addition, other conventional techniques include those shown in FIGS. 7 to 10.

Figure 7 is a side sectional view of a conventional scraping conveyance device;
Figure 8 is a front view of the conventional raking slat,
FIG. 9 is a perspective view, and FIG. 10 is a side view.

This conventional structure differs from the technique described in the above-mentioned Japanese Utility Model Application No. 59-16332, in that the distance between the raking slats is wide.
In the structure of the bent portion of the raking slat, only the conveying bending portion for sandwiching and conveying the grain culm between the bottom plate of the feeder house has a chain rotation locus on the rear side of the raking slat in the raking direction. It protrudes toward the outside.

In this case, since there was no bent part at the tip of the raking slat 1, it became a sharp part, and the structure was such that the grain culm A could easily wrap around this part.

(c) Problems to be solved by the invention In the case of the prior art as described in the above-mentioned Japanese Utility Model Publication No. 16332/1983, a raising slat is fixed to every other link of the feeder chain. Therefore, in total, a large number of raking slats had to be installed, which increased the weight and caused problems such as increased costs.

Further, in the prior art shown in FIGS. 7 to 10, there was a problem in that the grain culm A was tightly wrapped around the raking slat 1, and the transfer to the threshing section B was not smooth.

The purpose of the present invention is to eliminate this conventional problem, and to prevent the number of raking slats from increasing, and to prevent grain culms from entering inside the chain rotation locus, the threshing section The structure is such that there is no occurrence of grain culms that are not transported.

(d) Means for solving the problem The purpose of the present invention is as described above, and next, the configuration for achieving the purpose will be explained.

In a conveying device for raking grain culms from the reaping section to the threshing section in the feeder house of a DC combine harvester, a raking slat is installed between the left and right feeder chains, and at the rear of the raking slat,
An outward bending part is provided to sandwich the grain culm between the bottom plate of the feeder house, and the front part of the raking slat is
A bent part with a height h2 that protrudes to the inside of the feeder chain link is installed inward, and the front and rear raking slats are placed at intervals that do not overlap every few links of the feeder chain. be.

(e) Effect of invention The effect of the above configuration will be explained.

As the drive sprocket 5 rotates, the feeder chains 2L and 2R move toward the feeder house bottom plate 3.
Rotate in the direction of raising the grain culm A above a,
Grain culm A is raked up from the reaping section C to the threshing section between the raking slat 1 installed between the links of the feeder chains 2L and 2R and the feeder house bottom plate 3a.

Grain culm A is mainly sandwiched and transported between an outwardly bent portion 1b for transport formed at the rear end of the raking slat 1 in the direction of chain movement and a feeder house bottom plate 3a.

Conventionally, as shown in Fig. 10, the tip of the raking slat 1 in the direction of chain movement was left uncut, so the grain culm A was easily caught in this part. There was a problem that the grain culm A was not passed on to the threshing section B and was carried around, and the grain culm A got inside the rotation locus of the chain and could not come out.
This problem could be solved by a.

(F) Embodiment The purpose, structure, and operation of the present invention are as described above. Next, the structure of the embodiment shown in the attached drawings will be explained.

Fig. 1 is a side sectional view of the raking and conveying device of the present invention, Fig. 2 is a perspective view of the raking slat 1 of the present invention, Fig. 3 is a front view, and Figs. 4, 5, and 6. 11 is a side view showing the shape of another embodiment of the bent portions 1a and 1b of the raking slat 1, and FIG. 11 is a plan view of the DC type combine harvester.

Referring to FIG. 11, the overall configuration of the DC type combine harvester will be described.

A platform that can be raised and lowered is placed at the front, and a reaping section C is formed on the platform.

The reaping section C is composed of a pulling reel 8 at the front end, a next cutting blade 9, and a raking spiral 7 at the rear thereof.

First, the lodging grain culm is raised and the reel 8 is used to raise the grain, while the cutting blade 9 is used to cut the stock base.

In the case of a DC type combine harvester, the raking spiral 7
The water is collected at the front of the feeder house 3.

The main part of the present invention is that the grain culms A collected in one place by the raking spiral 7 are collected in a feeder house 3, which is a slanted cylinder, by a raking and conveying device installed in the feeder house 3. The present invention relates to the structure of a raking slat 1 of a raking conveyance device which conveys the inside of the grain to a threshing section B constituted by a screw handling cylinder 4.

The feeder house 3 is formed into a rectangular tube by a feeder house bottom plate 3a, a feeder house top plate 3b, etc., and sprockets 6, 6 are arranged at the front inside the rectangular tube, and sprockets 6 are arranged at the rear as well. Arrange the sprockets 5, 5, wind them around both sprockets 5, 6, and connect the feeder chains 2L, 2.
It is rotating R.

The raking slat 1 is installed between the left and right feeder chains 2L and 2R.

Next, the configurations shown in FIGS. 1 to 6 will be explained.

The raking slats 1 of the present invention are not arranged in a high density arrangement, such as being arranged at every other link of the feeder chain 2, but sparsely arranged, with one slat being arranged at every seventh link.

Fastening holes 1d for fixing to the links of the feeder chains 2L and 2R are opened at the left and right ends, and the end of the raking slat 1 on the rear end side in the direction of movement of the chain is folded for transportation. The grain culm A is held between the bent portion 1b for transportation and the feeder house bottom plate 3a of the feeder house 3, and is moved upward inside the inclined feeder house 3. It is being transported.

As shown in Japanese Utility Model Application No. 59-16332, the front end of the raking slat 1 in the chain traveling direction is bent between the feeder chains 2L and 2R to overlap the rear end of the other raking slat 1 in front. However, in the present invention, instead of using a bent part to overlap with other raking slats 1, a raking slat 1 is used to eliminate sharp parts that could get caught in the grain culm A. In order to increase the height h2 of the front end of the raising slat 1, an inward bending part 1 is made between the feeder chains 2L and 2R as a bending part.
It constitutes a.

Therefore, the protruding width of the snagging prevention bent portion 1a is slightly smaller than that of the feeder chains 2L and 2R as in the conventional case.
The bent portion 1a is not long enough to fit between the feeder chains 2L and 2R, but has a large bent portion 1a with a height h2 such that the tip of the bent portion 1a protrudes beyond the inner edge of the links of the feeder chains 2L and 2R. It is.

Since the feeder house 3 and the platform part of the feeder house 3 rotate up and down about the axis of the sprocket 5 at the upper end thereof, the feeder house bottom plate 3a An elastic body 10 is interposed between the threshing section B and the threshing section B.

In FIG. 2, the notch 1c provided in the portion of the conveying bend 1b allows the grain culm A, which tends to be biased toward either the left or right corner of the feeder house 3, to be moved as much as possible once by the slat 1. This is a notch provided for complete scraping.

FIG. 4 shows an embodiment in which the snag-preventing bent portion 1a and the conveying bent portion 1b of the raking slat 1 are bent at right angles.

FIG. 5 shows an embodiment in which the bent portion 1b is inclined.

FIG. 6 shows an embodiment in which the bent portion 1a is inclined.

(g) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, a bent part 1a is provided inwardly at the tip of the raking slat 1 in the chain traveling direction, and a bent part 1b is formed outwardly at the rear end. By increasing the thickness of the slat 1 from the conventional tip thickness h1 shown in Fig. 10 to the height h2 of the tip of the present invention shown in Fig. 4, the grain culm A
The coefficient of friction at the tip of the raking slat 1, which is a major factor in getting caught, can be reduced, and the grain culm A that tries to get caught in this part also slips and escapes.

As a result, the grain culm A is gradually moved to the raking slat 1.
This eliminates the problem of grain culm getting stuck inside the chain and reducing the grain conveying capacity, and also eliminates the problem of grain culm getting stuck inside the chain. This could have been prevented from worsening.

Second, the section modulus of the raking slat 1 can be increased by forming the front part of the raking slat 1 with a height h2 higher than the height of the feeder chain 2 and a bent portion 1b that is largely bent. By increasing the strength of the raking slat 1 made of sheet metal installed between the left and right feeder chains 2L and 2R, the raking slat 1 does not deform even when the grain culm A is transported in a large amount. It was possible to do this.

Thirdly, as in the prior art technique described in Japanese Utility Model Application Publication No. 59-16332, in order to prevent grain culms from entering the inside of the raking slats, the raking slats are overlapped and linked to each other. Since there was no need to attach it to the camera, the overall weight could be reduced.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of the raking and conveying device of the present invention, Fig. 2 is a perspective view of the raking slat 1 of the present invention, Fig. 3 is a front view, and Figs. 4, 5, and 6. 1 is a side view showing the shape of another embodiment of the bent portions 1a and 1b of the raking slat 1, FIG. 7 is a side sectional view of a conventional raking and conveying device, and FIG. 9 is a perspective view, FIG. 10 is a side view, and FIG. 11 is a plan view of the DC combine harvester. 1... Raising slat, 1a... Conveyance bending part, 1b... Catch prevention bending part, 2L, 2
R...Feeder chain, 3...Feeder house, 3a...Feeder house bottom plate, 3b...
Feeder house top plate, A... Grain culm, B... Threshing section, C... Reaping section.

Claims (1)

[Scope of utility model registration request] In a conveying device for raking grain culms from the reaping section to the threshing section in the feeder house of a DC combine harvester, a raking slat is installed between the left and right feeder chains, and at the rear of the raking slat,
An outward bending part is provided to sandwich the grain culm between the bottom plate of the feeder house, and the front part of the raking slat is
A bent part with a height h2 that protrudes to the inside of the link of the feeder chain is installed inward, and the front and rear raking slats are placed at intervals that do not overlap every few links of the feeder chain. Characteristics of the DC combine harvester transport device.