JPH1033048A - Threshing machine sorting wind control device - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to open and close the intake port of Karino surely by Karino shutter or to change from fully closed to fully open in any state of wheat and rice. [Structure] A hood 6 is attached to one of the intake port 5 of Karino 3 and the Karano shutter so as not to form a gap between them, and a hood 6 approaching the other side is provided. The chaff sheave angle adjusting operation system and the Karamin shutter 4 opening / closing adjustment operation system are provided in two systems so that the shutter changes from fully closed to fully opened, and each system is interlocked and connected to the straw discharging unit 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for adjusting the wind force of a threshing machine such as a combine, which is provided below a rocking and sorting body and can adjust the wind power of the sorting wind by Karino.

[0002]

2. Description of the Related Art Conventionally, in a threshing machine which is equipped with a Karamin wind force provided below a rocking sorter having a chief sheave capable of adjusting an angle, a chief sheave angle adjustment operation and a Karamin air volume adjustment are performed. The operation was one system.

[0003]

Therefore, in the above-mentioned prior art, in the state of rice, the Karamin shutter is opened up to the point A as shown in FIG. 8, so that the combine is strong even when turning in the field. Sorting wind is generated and sorting loss occurs frequently, when the threshing processing amount is small, the third loss is large, and further, in the state of wheat, Karamin wind is not strong enough and sorting is poor, The problem was presented.

[0004]

SUMMARY OF THE INVENTION The invention of the present application has been devised so as to solve such a problem and to implement the invention suitably. For this reason, in a threshing machine equipped with a freely adjustable wind turbine 3 provided below the rocking sorter 2 having a chief sheave 1 whose angle can be adjusted, the larger the angle of the chaff sheave, the larger the amount of Karino wind. In addition, the maximum airflow of Karamin is approximately the same regardless of crop conditions such as wheat and rice.

[0005]

Therefore, even if the chaff sheave angle switching operation is performed in accordance with rice and wheat, the maximum airflow of the Karamin wind changes substantially the same in both the rice and wheat states, and the wind power is adjusted.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A threshing machine A mounted on a combine has a swing sorter 2 extending from a lower part of a handling room in which a handling drum 8 is installed to a dust extraction side, and the swing sorter 2 has an adjustable angle. A chaff sheave 1 is provided, and an impeller 3a is provided below a starting end side of the swing sorting body 2.
Karino shutters 4 and 4 which can be rotated around a fulcrum 9 and can be opened and closed are provided on the outer sides of lower portions of suction ports 5 and 5 provided on both sides of the Karino 3 respectively. Although it is provided with the same structure as the conventional structure, as shown in FIG. A hood 6 approaching to the intake port 5 is attached, or as shown in FIG. Hood 6 approaching the outer surface of the lower peripheral part of the hood
Attach and configure.

An operation wire 10 for adjusting the angle of the chief sheave 1 is extended from the chief sheave 1, and its distal end is linked to one end of a bell-crank type rotating arm 11 via a spring 12. Rotating arm 11
An inner wire 13a extending from the other end of the arm 16 is linked to the rice-wheat switching operation lever 14 in an interlocking manner, and a wire receiver 17 provided at the tip of an arm 16 extending from a fulcrum shaft 15 rotatably mounted on the inner wire 13a. The inner wire 13a is inserted and an outer wire 13b is interposed between the wire receiver 17 and the other end of the rotating arm 11, and the arm 16
The lower end 19a of a supporting rod 19 which is vertically installed below the straw unit 7 and moves up and down in accordance with the amount of straw is brought into contact with the abutment 18 fixed to the base of the fulcrum shaft 15. At the tip of the fixed arm 20, an operation wire 21 for opening and closing the Karino shutter 4 is linked and connected via a spring 22 so that the Karino shutter is fully closed from fully closed in any state of wheat and rice. The angle adjusting operation system of the chaff sheave 1 and the opening / closing adjustment operation system of the Karamin shutter 4 are changed to two systems, and each system is linked to the straw section 7 so as to be changed.

Therefore, when the Karamin shutter 4 is closed, a gap is formed between the Karamin 3 and the suction port 5 by the interposition of the hood 6 as shown in FIGS. Therefore, even if the angle of the chaff sheave 1 is switched by the switching lever 14 in accordance with rice and wheat, the opening / closing adjustment operation system of the Karamino shutter 4 becomes a separate system. Therefore, when adjusted in conjunction with the straw section 7, in either the rice or wheat state, the Karino shutter 4 changes from fully closed to fully open as shown in FIG. In a state in which the amount of materials to be sorted is small when the combine turns on the headland side in the field, the sorted wind power can be reliably reduced. Although the present embodiment shows a mechanical interlocking mechanism,
Of course, it may be configured as an electric interlocking mechanism.

[0009]

As described above, even when the angle of the chaff sheave 1 is switched in accordance with rice and wheat, the maximum wind power of the Karamin wind is substantially the same in both the rice and wheat states, and the wind power is adjusted. As described above, according to the invention of the present application, the angle of the chaff sheave suitable for the crop condition can be selected, and the Karin wind force suitable for the crop condition and the chaff sheave can be automatically adjusted. In other words, the third loss when the threshing amount is small can be reduced as much as possible, and the sorting accuracy can be further improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a part of Karamin;

FIG. 3 is a side view showing a part of FIG. 1 and a straw discharging unit.

FIG. 4 is an explanatory diagram showing an operation system.

FIG. 5 is a sectional view showing another example of FIG. 2;

FIG. 6 is a graph showing the open / closed state of the Karamino shutter.

FIG. 7 is a sectional view showing a conventional example.

FIG. 8 is a graph showing a shutter open / closed state in a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Shaft sieve 2 Swing sorting body 3 Karamine 4 Karamino shutter 5 Inlet 6 Food 7 Straw

Claims (1)

[Claims] 1. In a threshing machine equipped with a karamino 3 provided below an oscillating sorter 2 having an angle-adjustable chief sheave 1 so as to be wind adjustable, the larger the angle of the chaff sheave, the greater the amount of karino air. A wind power control device for a threshing machine, characterized in that it is configured to be larger and that the maximum air volume of the Karino wind is approximately the same regardless of crop conditions such as wheat and rice.