JPS61128818A - Full straw throwing type threshing apparatus - 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] [Industrial Application Field] The present invention provides a rotary handling cylinder with a handling blade, and a plurality of receiving blades along the outer circumference of the rotating handling cylinder in the axial direction of the handling cylinder. A large number of receiving blades are arranged side by side to form leakage slits between adjacent blades, and a large number of receiving blades are erected on this receiving blade stand, and the reaped grain culm supplied to the handling chamber by the handling blades and receiving blades is This invention relates to a whole-culm input type threshing device for threshing grains.

[Prior art]

In the conventional whole culm input type threshing device, as shown in Fig. 4, the tip trajectory of the handling blade (to) of the rotating handling cylinder (5) and the blade receiving stand (
There is a gap of about 5 to 20 mm (hereinafter referred to as concape clearance) between the upper surface (goods) of the receiving blade (211
tfii (2G) whose front edge (support) is above the blade rest (2)
The blade stand α8) K was erected so that it was almost perpendicular to the blade.

[Problem that the invention seeks to solve]

With such a conventional structure, straw wraps around the concoup clearance part of the receiving blade, and this wrapped straw grows and clogs the leakage slit, making it difficult to properly leak out the threshed material. There was a drawback that it was impossible to do so.

An object of the present invention is to provide a threshing device that can perform good threshing without clogging the leakage slit by simply improving the shape of the receiving blade. ,,
・, [Means for solving the problem] The feature of the whole culm input type thresher according to the present invention is that the leading edge of the base of the receiving blade in the handling chamber is positioned so that the front edge of the base of the receiving blade in the handling chamber is positioned closer to the center of the handling cylinder as It is located at a point constructed on the sloping leading edge approaching .

[Effect]

The harvested grain culm supplied to the handling room is threshed by the rotation of the handling drum, and the handling blade attached to the handling drum cooperates with the receiving blade installed on the fixed stand. When the straw that is being deflated gets caught in the receiving blade part between the concoup clearances, the straw becomes
It moves along the inclined front edge of the blade base to the tip side of the blade, that is, within the action area of the blade, due to the drag action of other broken culms passing between the blades or the rotating wind of the handling barrel, It is peeled off from the receiving blade under the direct action of the handling blade.

〔Effect of the invention〕

Even if straw gets caught in the receiving blade part between the concoup clearances, the straw will move along the inclined front edge of the receiving blade into the action area of the handling blade and be threshed, so there will be no leakage formed between the receiving blades. The lower slit is not blocked and clogged, and through extremely simple improvements, it has become possible to perform good threshing processing.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Fig. 3, the reaping section (2) is mounted in the forward position on a machine body equipped with a crawler type traveling device t1), and a whole culm input type threshing device (3) is mounted on the machine body. A DC type combine harvester is constructed.

The threshing device (3) has a grain culm input port (4) on the front side, and a handling chamber (6) equipped with a handling cylinder (5) that can be driven and rotated around a horizontal axis in the left and right direction. and a concoup (7) provided along the lower outer periphery of the handling cylinder (5).
) through the handling room (6) and the handling room (6).
A sorting room (9) is provided for sorting the scraped material from the handling room (6) through a beater (8) provided at the rear while sending it to the rear.
In addition, a winnowing machine (lO) for generating a sorting airflow, a first sorting material collecting section αυ, a second sorting material collecting section (2), and a waste straw cutter αυ are provided.

As shown in Figs. 1 and 2, the handling cylinder (5) has a frame plate α that is integrally rotated with the handling cylinder axis α→, and has an uneven cross-sectional shape. A plurality of handling blades (B) are planted on the outer surface at appropriate intervals in the longitudinal direction. They are installed in a protruding position at appropriate intervals in the circumferential direction.

The concoup (7) has two rows of blade rests (2) and congape crosspieces αS and O91 arranged alternately in two rows along the lower outer circumference of the handling cylinder (5) in the axial direction of the handling cylinder. , juxtaposed to form slits (a) and (a) for leakage of the threshed material between adjacent ones, and the blade rests (to) are placed at appropriate intervals in the longitudinal direction, A large number of receiving blades (■)... are erected, and 1 congeve crosspiece 0 groan, 2 moe are made into a pair, and both ends are connected by 4 plates to form a conrepe crosspiece unit m.
A frame □□ comprising the plate body of the blade stand (to), side and concoup crosspiece unit (to) attached to the machine wall.
It is configured by being fixed to □.

The handling blade tip trajectory device of the rotating handling cylinder (6) and the blade rest (to the wall)
A concoup clearance distance of about 5 to 20 cm is formed between the concoup clearance fL1 and the concoup clearance , the front edge of the base on the outside of the trajectory (C) of the receiving blade QJ) is configured to be an inclined leading edge that approaches the center of rotation of the handling cylinder as it goes downstream in the direction of rotation of the handling cylinder. It is configured to guide and lift the straw caught on the edge to the cutting area.

The angle of elevation of the inclined front edge of the base end of the receiving blade with respect to the upper surface I26) of the receiving blade base O → (to) is best about 10 to 30 degrees, but it is sufficient to lift the stuck straw to the cutting area. If available, the elevation angle may be set to a value greater than the above. However, the front edge of the receiving blade may be curved so that the width becomes narrower toward the tip.

[Another example]

As shown in FIG. 5, the proximal end of the leading edge of the receiving blade may be extended along the upper side wall in the direction of rotation of the handling cylinder (5) of the receiving blade stand (to). In this way, the receiver/cutting holder (2), (
Straw will not get caught between the upper surface (mark 2 and the receiving blade (21)...

[Brief explanation of drawings]

The drawings show an embodiment of the whole culm input type threshing device according to the present invention, FIG. 1 is an enlarged longitudinal sectional side view of the main part of the handling chamber, FIG. 2 is an enlarged cross-sectional plan view of the main part of the handling chamber, and FIG. FIG. 4 is an enlarged vertical side view of the main part of the handling room of the conventional structure, and FIG. 5 is a side view of the main part of another embodiment. (5)... Rotating handling cylinder, (6)... Handling room, ni)... Handling blade, (to)... Blade holder, holder,
...Leakage slit, el) ...Blade,
(5)...The front edge of the base of the receiving blade.

Claims (1)

[Claims] In addition to attaching a handling blade (16) to the rotating handling cylinder (5),
A plurality of blade rests (1) are arranged along the outer periphery of the rotating handling cylinder (5).
8) and (18) are placed side by side in the axial direction of the handling cylinder so as to form leakage slits (20) and (20) between them, and the blade rests (18) and (18) are Many Ukeblade (21
)... are installed upright, and the handling blade (16)... and the receiving blade (21) are installed.
In the whole culm input type threshing device for threshing the harvested grain culm supplied to the handling room (6) by the receiving blade (21).
- A full culm input type threshing device characterized in that the front edge (27) of the base is configured to be an inclined front edge that approaches the center of the handling barrel as the lower side in the rotational direction of the handling barrel approaches the center side of the handling barrel.