JPH08168316A - Thresher - Google Patents

Abstract

PURPOSE: To obtain a thresher having improved selection efficiency by placing plural longitudinally slender slit-like openings directly let fall treated materials attained a final end of an upper part grain pan into a ripen grains-recovering part passing through a wind-selection route at right and left of a rear end part of the upper grain pan. CONSTITUTION: An upper part grain pan 7 placed at inlet side of a threshing chamber 1, a roughly selecting means 8 placed in rear of the upper part grain pan 7 and a grain sieve 10 placed below the roughly selecting means 8 are installed in a shaking and selecting case 5 placed below a receiving net 3 of the threshing chamber 1, a wind-selection route is formed below the shaking and selecting case 5, a ripen grains-recovering part 12 and an unripe grains- recovering part 13 in rear of the ripen grains-recovering part are placed below the wind-selection route. Plural openings 14, having a longitudinally slender shape, directly let fall treated materials attained a final end of the upper grain pan 7 into the ripen grains-recovering part 12 passing through the wind-selection route at right and left of a rear end of the upper grain pan 7 to obtain the objective thresher.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thresher mounted on a combine.

[0002]

2. Description of the Related Art Conventionally, as a threshing device mounted on a combine, as shown in, for example, Japanese Patent Laid-Open No. 6-141659, an upper grain pan receives an object to be treated which has leaked from the front part of a receiving net in a handling room. It is known that the rear end is oscillated and transferred, and from the end thereof, it is sent to the Glen Sieve for fine selection through the lower Glen Pan, and the grain is collected in the No. 1 collecting section by performing sieving and wind sorting. There is.

[0003]

Generally, most of the grain shattering process from grain culm is performed in the first half of the handling room, and most of the processed substance leaking from the front part of the receiving net to the upper gren pan is the grain. It is a grain. Therefore, if all the processed products from the upper Glen pan are sent to the lower Glen pan and the Glen sieve, a part of the grain that can be collected as the No. 1 grain reaches the end of the Glen sieve and is sent to the No. 2 grain collection section side unnecessarily. There was a possibility that the re-processing would reduce the sorting efficiency. In particular, the larger the amount of the processed product, the more the grains reaching the end of the grain sieve tend to increase, which is one of the factors that hinder the improvement of the selection efficiency. An object of the present invention is to efficiently send the grain that can be collected as the first product from the grain pan on the inlet side of the handling room to the first product recovery unit so as to improve the selection efficiency, and moreover, to select the means therefor. There is a point to devise something that has almost no adverse effect on.

[0004]

A feature of the present invention is that a swinging and sorting case arranged below a receiving net of a handling room has an upper gren pan located on the inlet side of the handling room and a rear part of the upper gren pan. Equipped with a rough sorting means located and a grain sieve located below the rough sorting means, a wind sorting path is formed below the swing sorting case, and a first object collecting section and two behind it are provided.
A number collecting part is provided below the wind selecting passage, and a long and narrow slit shape is formed before and after the processed product reaching the end of the upper Glenpan is dropped directly to the first collecting part through the wind selecting passage. A plurality of openings are arranged side by side at the rear end of the upper Glen pan.

[0005]

According to the above construction, the processed material that reaches the rear end of the upper Glen pan passes through the parallel openings to form a plurality of layered flows and passes through the wind selection channel, during which fine dust contained in the processed material is sorted out. Most of the processed materials that were blown back by the wind and dropped only the grain directly into the No. 1 picking section, leaked from the front of the net and received by the upper Glen pan. It is possible to efficiently send the occupying grains to the No. 1 product recovery unit, and it is possible to sufficiently improve the selection efficiency without unnecessarily retaining the No. 1 product in the selection unit. Moreover, since a plurality of elongated slit-shaped openings are arranged side by side on the left and right to drop the processed material in layers, the sorting wind smoothly flows backwards between the processing objects that fall in layers. However, the processed product that leaks through the Glensieve can be properly air-sorted.

[0006]

As a result, in the sorting performance, the grain that can be collected as the first product from the upper grain pan can be efficiently sent to the first product collecting section to improve the sorting efficiency, and the wind sorting function can be maintained well. It has become possible to provide an excellent threshing device.

[0007]

EXAMPLE As shown in FIG. 1, in constructing a threshing device to be mounted on a self-removing combine, a handling cylinder 2 is driven and rotated in a handling room 1 into which a grain culm sandwiched and conveyed by a feed chain 6 is inserted. A shaft 3 is freely supported and a receiving net 3 is provided for leaking the processed material from the handling chamber 1, and a dust inlet 4 for discharging the processed product not leaked through the receiving net 3 is provided at the rear end of the handling chamber 1. There is.

A swing selection case 5 arranged below the receiving net 3.
In addition, the upper grain pan 7 that receives the processed material (mostly grains) that has leaked from the front side of the receiving net 3 and swings and transfers it backward,
Coarse sorting means 8 such as a chaff sieve, which receives the processed material leaked from the latter half of the receiving net 3 and swings and transfers it backward, and receives the processed material discharged from the dust sending port 4 to the rear side. Equipped with a straw rack 9 for sieving and selecting a second product from straws while sending it, and a grain sieve 10 for fine selection for sieving and selecting the treated product leaked from the rough selecting means 8.

Below the rocking sorting case 5, the wind picking tray 11
To form a wind-selecting path, and a screw conveyor-type first object collecting section 12 and a screw-conveyor-type second object collecting section 13 behind the screw-conveying-type second object collecting section 12 are provided below the wind-selecting path to leak from the rocking sorting case 5. The processed material supplied below is subjected to a wind separation treatment, and the grain is 1
Sending the poorly sorted second product from the second product recovery unit 12 to the Glen tank and from the second product recovery unit 13 to the front part of the rough selection means 8 in the swing selection case 5 using a reduction device (not shown). Is configured.

As shown in FIGS. 2 and 3, the upper grain pan 7 is formed on the grain post-feeding rack portion 7a, and the rear end portion 7b of the upper grain pan 7 is formed in a corrugated shape in the left-right direction. Elongated slit-shaped opening 14
Are formed in the respective valleys of the rear end 7b of the Glen pan, and the openings 14
It is configured to directly supply the processed product falling from the No. 1 product recovery unit 12 of the air selection path. That is, the handling room 1
The grains that can be collected as the first product leaked from the upper grain pan 7 to the upper Glen pan 7 are efficiently sent to the first product recovery unit 12 without being supplied to the Glen sieve 10, and the first product is unnecessarily retained in the selection unit. It is configured so that selection can be performed efficiently without any problems. In addition, the processed material is dropped in a thin layer in the transverse direction of the wind selection path from a plurality of openings 14 arranged in parallel on the left and right, and the selected wind is favorably flowed backward by passing between the layered processed objects, It is configured such that the air sorting of the processed material that leaks through the rough sorting means 8 and the wind sorting of the processed material that leaks through the grain sieve 10 can be performed well.

[Other Embodiment] The shape of the rear end portion 7b of the upper gren pan forming the opening 14 can be appropriately changed, and the arrangement, number, shape, etc. of the openings 14 can be changed as appropriate. It suffices that a plurality of openings 14 through which the processed material is dropped directly into the first article recovery section 12 of the road are formed in a slit shape elongated in the front-rear direction and are arranged side by side at the Glen pan rear end portion 7b. .

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

[Brief description of drawings]

1 is a vertical side view of the threshing device.

FIG. 2 is a perspective view showing a front portion of a swing selection case.

FIG. 3 is a vertical sectional front view of the rear end of the upper Glen pan.

[Explanation of symbols]

 1 Handling Room 3 Receiving Net 5 Swing Sorting Case 7 Upper Glen Pan 8 Coarse Sorting Means 10 Glen Sieve 12 1st Item Collection Section 13 2nd Item Collection Section 14 Opening

Claims (1)

[Claims] 1. An upper Glen pan (7) located on the inlet side of the handling chamber (1) and an upper part of the swing sorting case (5) arranged below the receiving net (3) of the handling chamber (1). The coarse sorting means (8) located behind the Glen pan (7) and the grain sieve (10) located below the rough sorting means (8) are equipped, and the wind sorting path is provided below the swing sorting case (5). And a second object recovery section (13) and a second object recovery section (13) behind the first object recovery section (12) are provided below the wind selection passage, and the processed product reaching the end of the upper Glen pan (7) is A plurality of elongated slit-shaped openings (14) are arranged side by side at the rear end of the upper Glen pan (7) before and after passing through the wind selection path and being dropped directly onto the No. 1 object recovery section (12). A threshing device characterized by being installed.