JPH081634Y2 - Screw thresher - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention relates to a screw type thresher.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 58-15501 discloses one in which a throwing barrel is used to throw grain to be shredded and a screw tooth and a radial handle tooth are used during axial movement.
It is known from Japanese Patent Laid-Open No. 6-58 and Japanese Patent Laid-Open No. 58-16712.

[0003]

[Problems to be Solved by the Invention] In the conventional device as described above, the rotor cover and the cone cave are not separated from each other, and therefore the handling room is not fully opened, so maintenance and cleaning of the inside are easy. I can't.
Further, no consideration has been given to the means for efficiently transporting the object to be processed and the sorting accuracy of the corn cave. Therefore, the object of the present invention is to obtain a screw type thresher capable of maintaining and cleaning the inside of the handling chamber, efficiently performing threshing processing, and having high corn cave sorting accuracy.

[0004]

In order to achieve the above objects, the present invention provides the following screw type thresher. In other words, the screw thresher of the present invention is designed so that the dividing surface between the cone cover and the rotor cover, which is formed in a U shape and covers the lower half of the rotor evenly without the feed chain, is located above the rotor axis. The rotor cover can be freely opened to the entire concave surface, and the inner side of the rotor cover facing the rotor is formed on the upper surface and the inclined surfaces on both sides of the inner surface, and the descending surfaces on both sides following it. The cover is formed so that the inner surface thereof approaches the rotor.

[0005]

[Function] Since both upper corners of the rotor cover are formed in an inclined shape so as to approach the rotor, and subsequently both sides are formed as descending surfaces, the object to be processed is conveyed backward without staying, Further, since the dividing surface of the corn cape and the rotor cover is located above the rotor axis, the area of the corn cave is formed large and the upper side of the handling chamber can be opened entirely.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in the drawings will be described below.
First, the entire combine including a screw type thresher will be described. In FIG. 2, the crop scraped by the scraping reel (1) and cut by the cutting blade (2) is transferred from the scraping auger (3) to the handling room (6) by the chain conveyor (5) of the feeder house (4). Carried and threshed in the rotor (7). The threshed ones are dropped from the corn cave (8) onto the rocking sorting disc (9) to be sorted. This rocking sorter (9)
The threshed ones that have fallen on the top are sorted here, and only the long straws are carried to the rear in the direction of No. 3 (15). In addition, the sorted products on the swing sorting board (9) are sorted by the sorting wind by Kara (10), and the sorted grain is the first gutter (11).
Then, the second gutter fell to the second gutter (12) and the first gutter (11)
Grains that fell to the grain were transported to the paddy tank through the fried cylinder, and
The second one dropped on the guard gutter (12) is the second reduction auger (1
In step 3), it is returned to the rocking sorting board (9). In addition, (14) is a discharge vane facing the exhaust culvert (16) at the end of the rotor, and (17), (18) and (19) are plates, chaff sheaves, and Glensieves in the rocking sorter (9), which are shown in the figure. A cross flow fan (21) is provided just below the end of the cone cave (8). (22)
Is a ceiling casing thereof, and (23) is a guide plate provided between the cross flow fan (21) and the chaff sheave (19). Further, (24) is a pre-cleaning fan provided on the side of the starting end of the rocking sorting board (9).

The present invention is an improvement to improve the threshing performance and the sorting accuracy of the screw thresher in the combine as described above. That is, with the feed chain not provided, the dividing surface between the cone cover and the rotor cover, which is formed in a U shape and covers the lower half of the rotor evenly on the left and right, is positioned above the rotor axis, and the rotor cover is attached to the concave. The inner surface of the rotor cover facing the rotor is formed on the upper surface and the inclined surfaces on both sides of the device and the descending surfaces on both sides following the upper surface so that the rotor cover approaches the rotor on its inner surface. It is a screw type thresher formed as described above.

In FIG. 1, the rotor cover (25) is integrally formed so as to cover the entire width of the upper part of the machine body without the feed chain, and is rotated with a hinge (26) on one side of the machine body as a fulcrum to open and close. It can be fixed with clasps (27) and (28), and when opened, the entire width of the fuselage is opened. And the corn cave (8)
And the dividing surface (29) of the rotor cover (25) is above the rotor axis (0), and the cone cave (8)
Is formed in a U-shape that evenly covers the lower half of the rotor (7) on the left and right. Both corners (31) (31) of the rotor cover (25) are formed in an inclined shape so as to approach the rotor (7), and the descending surfaces (30) (30) are formed on the inclined surfaces.
Are connected. In addition, (32) in FIG. 1 is a dust delivery valve. As described above, since the dividing surface (29) of the cone cave (8) and the rotor cover (25) is located above the rotor axis (0), the area of the cone cave (8) is wide and the sorting accuracy is high. Is improved. Further, both corners (31), (31) of the rotor cover (25) are the rotor (7).
Slope to approach, followed by descending surface (30),
Since the (30) is connected to the dividing surface (29), the object to be processed is smoothly conveyed while threshing backward without staying. Also, since the rotor cover (25) can be opened from the dividing surface (29) with the cone cave (8),
The handling room (6) can be easily maintained and cleaned.

[0009]

EFFECTS OF THE INVENTION According to the present invention, not only can the area of the cone cave be increased to improve the sorting accuracy, but also the objects to be treated at both corners of the rotor cover can be prevented from accumulating and smoothly conveyed backward. Since the threshing efficiency is improved and the rotor cover can be released from the dividing surface with the corn cave, maintenance and cleaning of the handling room are easy.

[Brief description of drawings]

FIG. 1 is a sectional view of a screw thresher of the present invention.

FIG. 2 is an overall view of a combine equipped with a screw type thresher.

[Explanation of symbols]

 6 Handling Room 7 Rotor 8 Cone Cave 25 Rotor Cover 29 Dividing Surface 0 Rotor Shaft Core

Claims (1)

[Scope of utility model registration request] 1. A cone cover formed by arranging a U-shaped cone cave which covers the lower half of the rotor evenly without a feed chain and a dividing surface between the rotor cover and the rotor cover so as to be located above the rotor axis. The rotor cover can be freely opened, and the inner side of the rotor cover facing the rotor is a top surface and inclined surfaces on both sides.
By forming on the descending surface on both sides following
A screw threshing machine, characterized in that the bar is formed on its inner surface so as to approach the rotor .