JPH01228412A - Second reducing part of thresher - Google Patents

Abstract

PURPOSE:To carry out proper rethreshing of threshed grain stems and to discharge rethresed grain stems to a conveyor by lengthening distance from the center to the peripheral end of throwing blades as the position reaches the end of a second screw. CONSTITUTION:Throwing blades 15 lengthen distance from the center P to the peripheral end as the position reaches the end of a second screw 14a and when threshed grain stems sent to a treating case 17 are fed to the interior, high treating ability is exhibited. The threshed grain stems are hit by the throwing blades 15, further made into single grains, brought in the direction going away from an outlet, rotated, discharged from the outlet through a connecting case to the starting end of a second vertically sending conveyor 20. Consequently, the rethreshed grain stems are efficiently discharged.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a processing rotating body consisting of processing teeth and release blades at the terminal end of the second screw, and this processing rotating body is installed internally. This invention relates to a second reducing section of a thresher in which a discharge port of a processing case is communicated with a starting end of a second vertical conveyor.

[Conventional technology]

The second reducing section of this type of threshing device re-threshes the second material transported into the processing case by the second screw using the processing rotary body, and transfers the processed material to the starting end of the second vertical conveyor. It has been proposed that the material is supplied, sent upward on this second vertical conveyor, and returned to the sorting section. Conventionally, the processing rotor that is provided in the second reduction section has several releasing blades made of rectangular plates arranged at equal intervals in the circumferential direction at the end of the second screw, and each of these releasing blades It was constructed by fixing a plurality of treated teeth at equal intervals in the axial direction of the No. 2 screw.

[Problem to be solved by the invention]

In the processing rotating body configured in this way, the processing teeth and release blades act approximately equally on the second piece no matter where the second piece is located along the axial direction of the second screw. It turns out.

Therefore, the second grain fed into the processing case by the second screw will be re-thrested even more if it reaches the depths of the processing case and stays longer. As a result, the second grains that are sent into the processing case at an early stage are not re-thrested and are discharged, and the second grains that are excessively re-threshed but tend to remain in the processing case. This occurred frequently, and reprocessing was uneven.

The present invention has focused on such a situation and aims to equalize the re-threshing within the processing case and to efficiently discharge the re-threshed second grains.

[Means to solve the problem]

The characteristic configuration of the present invention is that the distance from the axis of the releasing blade to the peripheral end is determined by the length of the terminal end of the second screw, and its functions and effects are as follows.

[For production]

In other words, as the distance from the shaft center to the circumferential end of the release blade increases, the rotation locus of the release blade becomes larger and the release capacity increases, so the release capacity at the terminal end of the second screw increases. Therefore, since the discharge capacity is relatively low in the first stage when it is fed into the processing case, the second grains that are not sufficiently re-threshed and are released from the processing case are reduced.

In addition, when the second grains in the processing case are sent to the back and continue to receive re-threshing, the discharge capacity increases accordingly, so the number of second grains that tend to get stuck even though they receive excessive re-threshing decreases. .

〔Effect of the invention〕

According to the present invention, it has become possible to perform appropriate re-threshing on the second grains sent into the processing case, and it has also become possible to efficiently discharge the second grains that have been re-thrested to the second longitudinal conveying container. .

〔Example〕

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

Figure 4 shows the threshing section (A), the sorting section (B), and the collecting section (C).
A thresher is shown consisting of.

The threshing section (A) has a handling drum (2) mounted on a shaft in a handling room (1), and a receiving net (3) stretched along the lower side of the handling drum (2). The culm, which has been conveyed by the chain (4), is handled and processed by the handling cylinder (2),
The processed material is leaked and supplied onto the sorting section (B).

The sorting section (B) consists of a swinging sorting device (5) and a winnow (6) that sends sorting air to the swinging sorting device (5). The oscillating sorting device (5) is provided with a grain pan (8) and a grain sieve (9) in a series in front and back on both sides of a frame body (7) which can be freely oscillated. - It is constructed by providing racks (10) and (11) at the front and rear. Then, the treated material leaking from the receiving net (3) is stopped by the grain pan (8), and is oscillatedly transferred to the rear grain sieve (9) while being sorted by the difference in specific gravity.
The grain sieve (9) is used to screen out leakage while it is oscillated and transferred to the rear, and is released from the rear end. On the other hand, the treated material discharged from the dust inlet (1a) of the handling chamber (1) is stopped by the upper straw rack (10), and is oscillated rearward while being screened for leakage and sent to the lower straw rack. It is discharged to the rack (11), is leak-screened again in the lower straw rack (11), and is discharged out of the machine from the rear end. Note that (12) is a dust exhaust fan for discharging straw waste to the outside of the machine along with the sorting air.

The recovery section (C) includes a top recovery section (13) that recovers the paddy that has leaked from the grain sieve (9), and a straw rank (10
), and a second collection section (14) that collects the paddy grains leaked from (11). Ichibanmono Collection Department (13
) has a first screw (13a) for transporting the collected first item to the side, and a second item collecting section (14) has a first screw for transporting the collected second item to the side. A No. 2 screw (14a) is provided for this purpose.

Next, the second material reducing section of the threshing device will be explained.

A bottom case (14b) having a valley shape and a circular bottom is provided across the left and right vertical walls (22) of the threshing device, and a No. 2 screw (14a) is installed horizontally at the bottom of this bottom case (14b). constitutes a second object collection section (14), and a first object collection section (14).
As shown in the figure, the discharge port (2
3), and the terminal end of the No. 2 screw (14a) is made to protrude from this discharge port (23). Then, the collected second items are transported laterally and supplied from the discharge port (23) to the processing case (17).

At the terminal end of the No. 2 screw (14a), as shown in FIGS. 1 and 2, four freeing blades (15) facing in the circumferential direction are provided at 90 degree intervals. Six processed teeth (16) are attached to each of the release blades (15) at equal intervals in the axial direction, and these release blades (15)
and the processing teeth (16) constitute a processing rotating body (D).

The processing tooth (16) is in the shape of a hatchet blade, and handles and processes the second material sent by the second screw (14a) to form a single grain. In addition, the number of blades (15
), the distance from the shaft center (P) to the peripheral end is extremely long on the terminal side of the second screw (14a), and when the second item sent into the processing case (17) reaches the back, ,
It is designed to exhibit high processing power. This releasing blade (15) hits the second material to further make it into single grains, and after being carried and rotated in a direction away from the ejection port (17a), it is released from the ejection port (17a), It passes through the connection case (18) and is discharged to the starting end of the second vertical screw conveyor (20), which is an example of the second vertical conveyor.

A processing case (17) housing the processing rotating body (D)
) is connected to the connecting case (18), and the starting end of the second vertical screw conveyor (20) is connected to the connecting case (18).

The processing case (17) has an arc shape along the tip trajectory of the processing teeth (16), and has a shape that intersects the second vertical screw conveyor (20) at right angles when the upper surface is extended, A cleaning opening (21) is formed on the peripheral surface of the front part. And a lid body (24) that closes this cleaning port (21)
The inner surface is provided with receiving teeth (24a) for assisting the processing of the processing teeth (16).

The connection case (18) transfers the re-thrested second grains that have been driven out of the processing case (17) by the release blades (15) and processing teeth (16) to the second vertical screw conveyor (20). It guides you to the starting end. The width of the discharge port (17a) of the processing case (17) and the connection case (18) are narrowed as shown in FIG. 3 to prevent the second product from getting stuck.

The second vertical screw conveyor (20) has a vertical screw (26) inside the vertical tube (25), and a discharge blade (27) provided at the upper end of the vertical screw (26) is connected to the vertical tube (25). 25) No. 2 reduction port (25a) on the side of the upper end
As shown in Figure 4, after the second product sent through the connection case (18) is lifted up, it is sorted from the second return port (25a) by the discharge hole fl (27). Part (B) is reduced to above.

[Another example]

To carry out the present invention, as shown in FIG.
15) It is also good to increase the distance from the axis (P) to the peripheral end in three or more steps.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the second reduction part of the threshing device according to the present invention, in which Fig. 1 is a cross-sectional plan view of the processing case, Fig. 2 is a longitudinal sectional side view thereof, and Fig. 3 is the processing case and the second longitudinal feed. FIG. 4 is a plan view showing the connecting portion of the conveyor, FIG. 4 is an overall longitudinal sectional side view of the threshing device, and FIG. 5 is a lateral plan view of a processing case of another embodiment. (14a)...Second screw, (15)...
・・・・Release blade, (16)・・・・Processed tooth, (
17)... Processing case, (17a)...
・Discharge port, (20)...Second vertical feeding conhair,
(D)... Processing rotating body, (P)... Axis core.

Claims (1)

[Claims] At the terminal end of the second screw (14a), there is a treated tooth (16).
A processing case (D) is provided with a processing rotating body (D) consisting of a and a releasing blade (15), and a processing case (D) in which this processing rotating body (D) is installed is provided.
17) discharge port (17a) to the second vertical feed conveyor (20
) of the threshing device, which is connected to the starting end of the threshing device, and the distance from the axis (P) of the releasing blade (15) to the peripheral end is the same as the distance from the end of the second screw (14a). The second reduction part of the threshing device is made longer.