JPS61170315A - Dust discharge guide apparatus of threshing machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a dust guide device for a threshing machine, and can be used for a threshing device H such as a combine harvester or a harvester.

Problems to be Solved by the Invention Among the threshed grain that is threshed by the handling drum in the threshing room, waste materials such as ears and straw waste that do not leak through the threshing net are considered to be 11.39 years old. , A part of the waste material transferred to the terminal side of the threshing room is gathered against the machine wall of the threshing room and runs along the machine wall. While the grains are being rotated, grains that have been made into single grains from ear cuts and grains that have been separated from straw waste are scattered, become stuck grains on the threshed culm that is being transferred inside the threshing chamber, and are thrown out of the machine. Since the so-called No. 4 loss occurs when the dust is taken out, the purpose is to reduce the No. 4 loss by moving the waste at the end of the threshing chamber as far away from the Ia wall side as possible and returning it to the inside.

Means for Solving the Problems The present invention has a handling cylinder (1) mounted on an internal shaft and a threshing net (
The handling barrel is located at the end of the threshing chamber (3) in which the threshing chamber (3) is installed, and is located at the dust outlet (4) that discharges straw waste etc. from the threshed grain in the threshing chamber (3). (1) in the rotation direction 'I/1
The dust guide device for the threshing machine is provided with a dust guide plate (6) that is inclined inward from the terminal wall (5) of the threshing chamber (3).

Effect of the Invention Among the threshed grains threshed by the handling drum (1) in the threshing room (3), grains leak through the threshing net (2) and are sorted and collected.

On the other hand, pieces of ears, straw waste, grains attached to branches, etc. that do not leak through the threshing net (2) are transferred to the terminal side in the threshing room (3) and are discharged from the dust outlet, but the threshing room (3) The dust transferred to the terminal machine wall (5) side is removed from the dust exhaust guide plate (6
) is guided inward from the machine wall (5) side in the rotational direction of the handling barrel (1).

Effects of the Invention The dust collected toward the end machine wall (5) of the threshing room (3) is guided inward by the dust guide plate (6) at the dust exhaust port (4) and then IJ! Since it is kept away from the wall (6), it is possible to reduce the amount of grains that stick to the threshed culm without giving excessive resistance inside the threshing room (3), thereby reducing grain loss.

Embodiment In the illustrated example, a wind selection chamber (8) equipped with a suction fan (7) on one side is installed at the rear of the threshing chamber (3) in which the handling barrel (1) is mounted on an internal shaft. is equipped with a sorting room (9).

A foot chain (10) is placed along the opening of the threshing room (3).
and a clamping rod (11), and the handling cylinder (1) has a large number of handling teeth (12) spirally arranged on the outer peripheral surface of the handling cylinder (1).
A threshing net (2) is stretched over a net frame (13) formed in an arcuate shape approximately concentrically with the handling drum (1) at the lower part of the threshing barrel (1).

A dust exhaust port (14) communicating with the wind sorting chamber (8) is provided on the upper part of the threshing net (2) at the end of the threshing chamber (3), and a Connect the side (15) to the dust outlet (14)
It is mounted on an axle looking into the sky.

The sorting room (9) includes a transfer shelf (1B) and a sorting board (17).
A swing sorting device (19) equipped with a box edge (18), etc.
is installed so that it can move up and down with back and forth movement using an eccentric cam (20) and a swing arm (not shown).

Below the swinging sorting device (19), there is a first receiving gutter (21).
, a second receiving gutter (22) and a winch (23) are installed.

A dust exhaust guide plate (6) is provided at the dust exhaust port (4) of the threshing net (2).
) has been established. This dust removal guide plate (6) is connected to the handling cylinder (1).
A bulge is formed in the direction away from the horse surface of the handling barrel (1) in the rotational direction of the threshing chamber (3), and the terminal machine wall (
5) has a shape in which a wall surface is inclined from the inner side toward the center of the dust exhaust port (14).

The husk is threshed by the handling drum (1) in the threshing room (3) while being transferred by the foot chain (lG) and the pincer (11), and the threshed grains are passed through the threshing net (2). Then, it falls onto the transfer shelf (tS) of the swing sorting device (18), is sorted while being moved swinging, leaks through the sorting plate (17), and exits the machine through the first receiving gutter (21). taken out. Threshing net (2
) Processed materials such as ear cuts and straw waste that do not leak are stored in the threshing room (
3), the materials are rotated by the handling gear (12) and transported while being processed. When the end of the threshing chamber (3) is reached, when the dust is guided by the slope of the dust guide plate (6), the dust is not moved toward the center of the dust outlet (10) by the tilting action, but instead moves along the bulge. The dust is guided to the dust outlet (10) and scraped out by the scraping side (15).
舅jinrin 21go7so/7'ltzato is discharged outside the machine, and secondary materials such as ear cuts and grains attached to the stems are sorted out by the box edge (18) and sent to the second receiving gutter (22). Drop into the threshing room (3)
It is reduced to and reprocessed. A large piece of straw is the edge of the box (1
8) is ejected from the machine due to the rocking motion.

Therefore, the processed material transferred to the end machine wall (5) side of the threshing room (3) is guided to the dust exhaust port (14) by the dust exhaust guide plate (6) at the dust exhaust port (4). The scraping effect by the scraping side (15) is improved without shifting toward the wall (5) side.

Next, in the embodiment shown in FIG.
The resistance plate (25) on the foot chain (10) side is provided so as to be inclined inward from the end Ia wall (5) side of the threshing chamber (3) in the rotational direction of the handling cylinder.

The processed material transferred to the terminal side of the threshing chamber (3) is guided inward from the terminal machine wall (5) side of the threshing chamber (3) by the dust exhaust guide plate (6) at the dust exhaust port (4). Ru. Therefore, the grains flying loosely on the end machine wall (5) side are guided to the inside of the threshing chamber (3) by the dust guide plates (6) provided at two locations, so that the fourth loss can be reduced more effectively. .

[Brief explanation of drawings]

The figures show an embodiment of the invention, and Figure 1 is a front view;
FIG. 2 is a front view of another embodiment, and FIG. 3 is an overall side view partially cut away. In the figure, (1) is the handling barrel, (2) is the threshing net, (3) is the threshing room, (4) is the dust exhaust port, (5) is the machine wall, and (6) is the dust exhaust guide plate. show.

Claims (1)

[Claims] It is located at the end of a threshing room (3) in which the handling barrel (1) is mounted on an internal shaft and a threshing net (2) is stretched below, and the straw waste is removed from the threshed grain in the threshing room (3). Dust exhaust port (4) for discharging dust etc.
a dust exhaust guide for a threshing machine, comprising: a dust exhaust guide plate (6) that is inclined inward from the terminal wall (5) side of the threshing chamber (3) in the rotational direction of the handling barrel (1); Device.