JPH0638622A - Threshing cylinder with split screw threshing teeth - Google Patents

Abstract

PURPOSE:To improve the threshing function of a fully charging type axial flow combine harvester by changing the shapes of its threshing teeth. CONSTITUTION:Threshing teeth implanted on the peripheral surface of the threshing cylinder (10) of a fully charging type axial flow combine harvester are arranged at an angle (alpha) to the rotation direction (P) of the threshing cylinder so as to give a transfer action to materials to be threshed from the charging side toward the discharging side, and split in the circumferential direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screw threshing tooth having a transfer function of a full-supply type axial combine.

[0002]

2. Description of the Related Art Conventionally, a handle tooth which is planted on the peripheral surface of a handle cylinder of a full feed type axial combine has at least one tooth around the handle cylinder from the supply side to the discharge side so as to impart a transfer action to the grains to be debris.
A continuous screw-shaped handle tooth having a transfer angle with respect to the rotation direction is planted on the line drawn in a spiral shape of the above number.

[0003]

Since the above-mentioned prior art handling cylinder handling tooth form is a continuous screw-shaped handling tooth, the threshing treatment is performed while transferring the grains to be shredded fed into the handling chamber to the discharge side. However, there was a case that the grain could not be completely threshed and the grain was discharged out of the machine along with the culm.

[0004]

[Means for Solving the Problems] Therefore, a separate member is not newly added to the conventional continuous screw handling teeth, but a split type is adopted so that not only the grain removal can be transferred to the discharge side. The structure is such that threshing action can be achieved while rotating the threshing grain in the circumferential direction of the handling cylinder as well.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a side view of the whole supply type axial flow combine.

First, the combine shown in FIG. 1 will be described. The grain culm is scraped by the scraping reel (1), cut by the cutting blade (2), and the cut grain culm is fed from the scraping auger (3). It is lifted to the supply side (X) of the handling chamber (6) by the chain conveyor (5) of the house (4) and threshed by the screw handling tooth (A) described later in the present invention.

The grains, the culm pieces, and the fine dust generated by the threshing process leak from the net (7), fall on the rocking sorting section (8), and move toward the end side thereof. In the process of this movement, the grain and fine culm are leaked downward from the rocking sorting section (8), and only the long culm pieces are carried to the discharge side (Y).
What has leaked from the rocking sorting part (8) is the blower fan (1
2) and a suction fan (1) that can be attached to the end of the body (10)
Grain fell into the first gutter (13) and second grain into the second gutter (14) by the sorting wind and blower fan (12) according to 1), and the grain dropped into the first gutter was lifted. Grain conveyor (1
5) is stored in a predetermined container, and the second one is a lower cylinder (1
After 6), it is returned to the swing selection section (8) and re-sorted.

Next, the essential part of the present invention will be described. At least one handle tooth (A) is provided on the peripheral surface of the handle body (10).
A transfer angle (α) was given to the rotation direction (P) in order to give a transfer action to the grain removal from the supply side (X) to the discharge (Y) on the line drawn in a spiral shape above the book. Although a screw-shaped handle tooth is planted, it does not exert a threshing action while simply transferring the culm to the discharge side in a substantially straight line,
The grain culm is divided in the circumferential direction in order to scrape the grain culm in the circumferential direction of the handling cylinder (10) and to move it around the handling cylinder and move it while threshing with the receiving net (7).

[0009]

As is apparent from the above embodiments, according to the present invention, the treating teeth to be planted on the peripheral surface of the treating cylinder (10) of the full-flow type axial combine are transferred from the supply side (X) to the discharge side (Y). Since the screw handling tooth has a transfer angle (α) with respect to the rotation direction (P) in order to give a transfer action to the grain-removing direction and is divided in the circumferential direction, it is discharged from the supply side. Compared to the conventional one that has threshing action while moving to the side, the moving direction of threshing in the threshing chamber becomes a spiral direction in the circumferential direction, and the threshing distance, that is, the subject to undergo threshing treatment As the distance becomes longer and the handle teeth are divided, the thresher is intermittently beaten by the ends of the handle teeth, so that a higher threshing performance can be obtained while having a transfer action. Since other members are not added to the Are those that can be achieved even if the man-hour reduction Te.

[Brief description of drawings]

FIG. 1 is an overall side view of a full supply axial flow combine.

[Explanation of symbols]

 (A) Handle teeth (X) Supply side (Y) Discharge side (P) Rotation direction (α) Transfer angle

Claims (1)

[Claims] 1. A handling cylinder (10) for an all-supply type axial-flow combine.
The handling tooth to be planted on the peripheral surface is directed from the supply side (X) to the discharge (Y) so as to have a transfer angle (α) with respect to the rotation direction (P) so as to give a transfer action to the grain removal, and a circle. A handle cylinder characterized by having screw handle teeth divided in the circumferential direction.