JP2504616Y2 - Combine harvester - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a sorting fan structure of a large threshing device for mounting on a normal combine or the like.

(B) Conventional technology In the conventional threshing device mounted on a normal combine harvester, it is well known that a sorting fan provided below the tip of the spiral rotor is arranged in two stages vertically.

For example, it is like the technique described in Japanese Utility Model Publication No. 62-1552.

(C) Problems to be solved by the invention However, in the case of the prior art, a passage is formed between the upper selection fan and the lower selection fan. It was configured to feed the sorting fan. Therefore, the sorting wind of the upper sorting fan was constant, and only the sorting wind of the lower sorting fan could be adjusted.

The present invention solves the problems of the prior art as described above. By arranging the lower sorting fan and the upper sorting fan so that the casings are substantially close to each other, both casings are configured to overlap each other. An opening / closing valve is provided so as to communicate with each other, and the opening / closing valve is adjusted to be opened / closed so that the sorting wind force can be adjusted over a wide vertical width from the lower sorting fan to the upper sorting fan.

(D) Means for Solving the Problems The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

Below the front end of the spiral rotor R of the threshing device,
In a configuration in which two sets of sorting fans for sending sorting air to the swing sorting device are arranged, an upper sorting fan B and a lower sorting fan A, a casing 13 of the upper sorting fan B and a casing 6 of the lower sorting fan A are opened and closed. It communicates through the valve 3, and by adjusting the opening / closing valve 3, it is possible to adjust the sorting wind over and under.

(E) Embodiment The problems to be solved and the means for solving the present invention are as described above. Next, the structure of the embodiment shown in the accompanying drawings will be described.

FIG. 1 is an overall side view of an ordinary combine harvester of the present invention, FIG. 2 is a side sectional view of an on-board threshing device, FIG. 3 is an enlarged side view of a sorting fan portion, and FIG. FIG. 5 is a side sectional view showing the fan blade 1 of the lower sorting fan A.
Fig. 6 is a side sectional view showing the shape of Fig. 6, Fig. 6 is an enlarged side sectional view of the same, and Fig. 7 is a side view showing the mounting configuration of the lower sorting fan casing 6a, the first conveyor case 9, and the second conveyor case 10, FIG. 8 and FIG. 9 are front sectional views showing a mounting state of the cleaning covers 5 and 7 for cleaning the inside of the swing selecting device.

In FIG. 1, a threshing device is mounted on top of a crawler type traveling device 31, and a feeder house 30 is provided in front of the threshing device.
And the platform 28 is projected at the tip of the feeder house 30. At the tip of the platform 28, a shunt plate and a raising reel 26 are arranged. The grain culm raised by the raising reel 26 is cut by a cutting blade, collected in the center by an auger mechanism 27 on a platform 28, and supplied to the tip of the spiral rotor R by a feeder chain 29 in a feeder house 30. To do.

In the spiral rotor R, the whole grain culm is threshed, and the grain falls from the crimp net onto the swing sorting device. A lower sorting fan A and an upper sorting fan B, which form an essential part of the present invention, are vertically arranged at the front end of the swing sorting device.

The present invention relates to a casing for the lower sorting fan A and the upper sorting fan B.

 Next, referring to FIG.

A crimp net is formed below the spiral rotor R, and among the grains falling through the crimp net, the grain falling at the first part of the spiral rotor R is an upper swing sorting device. Grains that have fallen to the bottom of the spiral rotor R and have passed through the crimp net at the rear of the spiral rotor R fall onto the return conveyor 20. The return conveyor 20 is rotating in the direction of the arrow, and the grains are
Is rotated and tilted to be transported onto the upper swing sorting device, and straw, straw debris, etc. are transported backward by the sorting wind from the upper sorting fan B regardless of the rotation direction of the return conveyor 20. It is discharged to the outside.

The upper swing sorting device is configured by a feed pan 16, a sieve line 22, a chaff sheave 23, and the like, and the grains dropped on the feed pan 16 are placed on the shed plate 7 that is part of the casing of the upper sorting fan B. It drops, passes through the sorting air from the upper sorting fan B and the lower sorting fan A, and falls on the first conveyor 11 of the first conveyor case 9.

Grains that have fallen from the sieve line 22 and the chaff sheave 23 fall to the grain sieve 24 and chaff sheave 25 of the lower swing sorting device,
Fine grains fall to the first conveyor 11 and second grains fall to the second conveyor 12.

Reference numeral 21 is a dust removing fan for sucking dust and straw on the lower swing sorting device.

2 and 7, below the placement frame F of the threshing device, the lower sorting fan casing 6a of the lower sorting fan A, the first conveyor case 9 of the first conveyor 11, and the second conveyor case 9. The second conveyor case 10 of the conveyor 12 is attached from below.

In this way, the lower sorting fan casing 6a, the first conveyor case 9 and the second conveyor case 10 are mounted on the mounting frame F.
By attaching from below the mounting frame F, only these can be detached from the mounting frame F, and in this detaching operation, it is not necessary to remove the parts above the mounting frame F, so cleaning is most necessary. It was possible to easily attach and detach the part.

Next, referring to FIGS. 3 and 4, a configuration in which the casing 6 of the lower sorting fan A and the casing 13 of the upper sorting fan B are communicated with each other and the opening / closing valve 3 is arranged will be described.

In this way, the purpose of arranging the lower sorting fan A and the upper sorting fan B vertically is to cut the entire grain culm and thresh, and in a normal combine harvester that sorts only the grain, the threshing device becomes large, Since the oscillating sorting device is also arranged in the upper and lower two stages, the sorting wind is required over a wide range in the upper and lower parts. Therefore, it is necessary to provide the two-stage sorting fan.

And by the lower sorting fan A and the upper sorting fan B,
It is not required that the sorting air blown over a wide range in the top and bottom is all uniform, but depending on the type of grain to be cut, in the case of paddy, soybean, and buckwheat,
In the case of wheat, etc., a slightly different distribution of the sorting wind is required.

In the present invention, the casing 13 of the upper sorting fan B is provided in order to facilitate the difference in the upper and lower strengths of the sorting wind.
And a casing between the casings 6 of the lower sorting fan A are integrated, a communication hole is opened in this portion, and the opening / closing valve 3 is arranged in this portion.

As shown in FIG. 4, the on-off valve 3 is interlocked with the adjustment target adjusting lever 4 by the wire 43, and the inclination direction and the inclination angle of the on-off valve 3 are set by the paddy, buckwheat, soybean, wheat, etc. is there.

In FIG. 3, the casing 6 of the lower sorting fan A is
The lower selection fan casings 6a and 6b are configured to be separable, and the lower selection fan casing 6a is attached below the mounting frame F so that it can be detached.

Further, as shown in FIG. 3, a paddy drainage gap a is formed between the flow straightening plates 14 and 15 below the upper sorting fan B, so that the paddy and water which flow back into the casing 13 are It is constructed so that it can be drained from the paddy drainage gap a.

 18 and 19 are also straightening vanes.

In FIGS. 5 and 6, the shapes of the fan blades 1 and the yagi 2 of the lower selection fan A will be described.

The fan blade 1 is composed of a spring plate, and is a yagi 2
It is fixed at the tip of. Further, by providing the tip of the fan blade 1 with a receding angle α, the sorting wind generated by the fan blade 1 becomes a sorting wind flow along the outer periphery of the casing 6, and the sorting wind easily flows along the straightening vanes. It is configured to be the wind.

Further, since the yagi 2 has a symmetrical shape made of band steel and has a structure that is tightened and fixed to the fan shaft, the yaki 2 has a simple structure that does not require metal or stepped portions. Can be done.

FIG. 8 and FIG. 9 are front sectional views showing the shape of the cleaning cover of the swing selecting device.

The technique of merely providing the cleaning cover 5 on the side plate 8 of the threshing device has been conventionally known, but if the cleaning cover 5 is simply removed, only the space between the rocking sorting device and the side plate 8 can be handled. It was impossible to take out the wet material, soil, etc. that had accumulated inside the rocking sorting device because it did not enter.

In the present invention, the cleaning cover 7 is similarly opened on the side plate 39 of the swing selecting device corresponding to the cleaning cover 5.

This makes it possible to take out the wet material and soil accumulated on the bottom plate 38 of the rocking / sorting device.

(F) Effect of the Invention Since the present invention is configured as described above, it has the following effects.

That is, the casing 6 of the lower sorting fan A and the casing 13 of the upper sorting fan B are communicated with each other, and the opening / closing valve 3 is arranged in the communication hole, so that the sorting air can flow between the sorting fans. As a result, it is possible to have a large adjustment range for the upper and lower sorting winds.

As a result, it was possible to widen the range of adjusting the sorting wind among crops such as paddy, soybean, buckwheat and wheat.

[Brief description of drawings]

FIG. 1 is an overall side view of an ordinary combine harvester of the present invention, and FIG.
FIG. 3 is a side sectional view of the onboard threshing device, FIG. 3 is an enlarged side view of a sorting fan portion, FIG. 4 is a side sectional view showing an adjusting mechanism of the on-off valve 3, and FIG. 5 is a fan blade 1 of a lower sorting fan A. Fig. 6 is a side sectional view showing the shape of Fig. 6, Fig. 6 is an enlarged side sectional view of the same, and Fig. 7 is a side view showing the mounting configuration of the lower sorting fan casing 6a, the first conveyor case 9, and the second conveyor case 10, FIG. 8 and FIG. 9 are front sectional views showing a mounting state of the cleaning covers 5 and 7 for cleaning the inside of the swing selecting device. A: Lower sorting fan B: Upper sorting fan 1 ... Fan blades 3 ... Open / close valve 4 ... Selection target adjustment lever 6 ... Lower sorting fan casing 13 ... Upper sorting fan casing

Continuation of the front page (72) Inventor Takamasa Nakamura 428 Enami, Okayama City, Okayama Prefecture Seirei Industrial Co., Ltd. (56) Bibliography Sho 62-1552 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. An upper sorting fan B comprising a pair of sorting fans, an upper sorting fan B and a lower sorting fan A, which are arranged below the front end of a spiral rotor R of a threshing device and which send sorting air to an oscillating sorting device. The casing 13 of the lower sorting fan A is communicated with the casing 6 of the lower sorting fan A through the opening / closing valve 3, and the sorting wind can be adjusted up and down by adjusting the opening / closing valve 3. .