JPH06276844A - Grading unit of thresher - Google Patents

Abstract

PURPOSE:To improve the efficiency of shaking separation and wind selection work. CONSTITUTION:This invention is related to a grading unit for performing shaking separation and wind selection of threshed crops by a shaking separator and a fan mill set under a threshing chamber. This grading unit is equipped with the first grading wind passage for allowing the grading wind from a fan mill to pass and blow through a space between the first grain pan and the second grain pan and through a space between a chaff sieve and a grain sieve in the upper rear direction and with the second grading wind passage for allowing the grading wind to pass and blow through a space between the grain sieve and the first conveyor in the upper rearward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting device in a thresher.

[0002]

2. Description of the Related Art Conventionally, in this sort of sorter, a grain which has leaked through the net in the handling room is sorted by a swing sorter, and further, the wind is sorted by the sort wind from Karato while it is falling. The technology is already known.

[0003]

However, in the conventional configuration in which the wind sorting is performed when the grain is dropped from the swing sorting device, when a slightly moist grain is dropped, the chaff in front of the swing sorting device is dropped. It is easy for stagnation to occur in the parts, and when a large amount of grains fall, straws and the like are easily mixed in the first product, and the second product also increases, resulting in a decrease in processing capacity. .

An object of the present invention is to solve the problems of the prior art and improve the sorting performance. To achieve this object, the present invention takes the following technical means.

[0005]

[Means for Solving the Problems] That is, the technical means according to the present invention is provided in an oscillating sorting device arranged below the handling chamber and a sorting device for oscillating sorting and wind-selecting grains after threshing by Kara Minoh. , The first selection wind passage through which the selection wind from Kara No. blows upward and backward through the primary Glenpan and the secondary Glenpan and between the chaff sieve and the Glensieve, and between the Glensieve and the No. 1 conveyor. It is characterized in that a second sorting air passage is provided which blows upward and backward through the space.

[0006]

EXAMPLES Examples of the present invention will be described below. 1 is a handling room, 2 is a handling cylinder, 3 is a net, and 4 is a dust outlet. Handling room 1
On the lower side, there is a swing sorting device 5 that receives threshing-treated products leaking from the receiving net 3 and dust-treated products from the dust discharge port 4 and sifts and sorts them while swinging and transferring them rearward in the axial direction of the handling cylinder. It is provided.

The rocking / sorting device 5 has a primary Glen pan 6 (a stepwise transfer rack), a chaff sheave 7 and a straw rack 8 which are continuous to the rear of the primary Glen pan 6, and are arranged at the front and rear. A secondary gren pan 9 and a gren sieve 10 which is continuous behind the secondary gren pan 9 are provided below the front part of the hoop 7. Then, the processed material that has leaked from the receiving net 3 and has passed through the front side of the primary Glen pan 6 and the chaff sieve 7 is oscillated and transferred by the secondary Glen pan 9 to the rear Glen sieve 10, and then the Glen sieve. -While sorting through the leaks with bu 10,
In addition, while the wind is being selected by the sorting wind from the Karasou 11 and 12, the powder is oscillated and transferred rearward, and is dropped and discharged from the rear end.

On the other hand, the treated dust discharged from the dust outlet of the handling chamber 1 is directly received at the rear side of the chaff sheave 7, and is oscillated and transferred to the rear while sieving to remove only the straw waste to be discharged. -It is configured such that the dust is discharged from the end of the rack 8 together with the sorting wind, and the suspended dust is sucked and discharged by the suction dust discharge device 13. A No. 1 conveyor 14 and a No. 2 conveyor 15 are provided at the bottom of the sorting chamber.

The first sorting air duct 16 of the first Kara-no-mitsu 11 is
A suction / dust collecting device 13 at the rear through the lower part of the chaff sheave 7.
It is designed to blow through. That is, it is constructed so as to blow through upward between the Glen pans 6 and 9 and the chaff sheave 7 and between the chaff sheave 7 and the Glen sheave 10 to the upper rear. Further, the second selection air passage 17 of the second Karako 12 is constructed so as to pass through between the Glensive 10 and the No. 1 conveyor 14 and blow toward the suction dust removing device 13 at the upper rear side.

The first and second Karakuno 11 and the second Karakuno 12 are configured so that the relative rotational speeds of both Karato 11 and 12 can be changed by a transmission 18. 19 in the figure
Is a processing cylinder, 20 is a processing chamber, and 21 is a dust outlet of the processing chamber.
In the first selection wind passage 16 from the Kara no Mino, the selection wind passes through between the primary Glen pan 6 and the secondary Glen pan 9 and between the chaff sheave 7 and the Glen sieve 10 toward the rear upper direction, and further. , Part of which is the fin 7 of chaff sheave 7
Since it blows upward from between the a and the fin 7a, preliminary wind separation of the leaked substance falling from the receiving net 3 to the swing sorting device 5 can be performed, and the staying on the swing sorting device 5 can be eliminated.

In the second sorting air passage 17 from the Kara no ho, the main sorting air is sent, but since it passes between the Glensieve 10 and the No. 1 conveyor 14 and blows upward toward the rear, the Glensihn. It is possible to efficiently and satisfactorily select the grain that is leaked from the bur.

[0012]

Since the present invention is constructed as described above, it has the following effects. That is, a part of the sorting air is sent to the front side (starting end side) of the chaff sheave, and the sorting air flows along the swinging feed direction to promote the feeding effect of the objects to be sorted and get wet. Even grains can be sorted, and preliminary sorting can be performed before falling on the first conveyor, which can significantly improve sorting efficiency. In addition, it becomes possible to quickly discharge straw dust, dust, and the like out of the machine, reduce unprocessed materials, and enable high-speed work.

[Brief description of drawings]

1 is a cut-away side view of a thresher.

[Explanation of symbols]

 1 Handling Room 2 Handling Cylinder 3 Receiving Net 4 Dust Exit 5 Swing Sorting Device 6 Primary Glen Pan 7 Chaff Sieve 8 Straw Rack 9 Secondary Glen Pan 10 Glen Sieve 11 1st Karano 12 12 2 Karaku 13 Suction and Dust Removal System 14 No. 1 conveyor 15 No. 2 conveyor 16 1st sorting air duct 17 2nd sorting air duct

Claims (1)

[Claims] 1. In an oscillating sorting device arranged below the handling room and a sorting device for oscillating sorting and wind-selecting the grains after threshing by the Kara-miso, the sorting wind from the Kara-mitsu is divided into a primary Glen pan and a secondary Glen pan. A first sorting wind passage that blows upward and backward through the space and between the chaff sheave and the Glen sieve, and a second sorting wind passage that blows upward and backward through the gap between the Glen sieve and the No. 1 conveyor A sorting device in a threshing machine characterized by being provided.