JPH05176625A - Structure of threshing and selecting part - Google Patents

Abstract

PURPOSE:To increase selection accuracy by removing a small piece admixture from a first threshed product. CONSTITUTION:In a structure of threshing and selecting part wherein a winnower 10 of sending a selecting wind to a selecting device B set in a state of crossing above a first threshed grain recovery screw conveyor 11 laid below the selecting device B is arranged before the first threshed grain recovery screw conveyor 11, an air blast device 19 capable of sending a wind from an air duct hole 20 formed at the bottom of a first threshed grain passageway of the first threshed grain recovery screw conveyor 11 toward an upper part is installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing / sorting section structure mounted on a combine or the like, and more particularly, to a sorting machine in which the threshing / sorting machine is traversed above a first object recovery screw conveying device arranged below the sorting machine. On the other hand, the present invention relates to a threshing / sorting section structure in which Karato, which sends a sorting wind, is arranged in front of the most object recovery screw transport device.

[0002]

2. Description of the Related Art Conventionally, as this type of threshing selection structure,
For example, as disclosed in Japanese Unexamined Patent Publication No. 3-80017, the sorted first item is transferred to a Glen tank or a bag hopper for collecting bags, which is disposed on one side of the machine by the first item recovery screw conveyor. It was fed sideways and stored.

[0003]

However, in the case of the above-mentioned conventional structure, it is intended that the first product is composed of only paddy after the sorting treatment, but straw waste, twigs, etc. Often, small pieces of foreign matter are contained in the first product, and in order to remove these foreign matter, it is necessary to perform a high-level sorting process together with post-treatments such as drying and polishing. .. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a threshing selection unit structure capable of removing small-piece contaminants from the first product and improving the selection accuracy.

[0004]

In order to achieve the above-mentioned object, a threshing selection section structure according to the present invention is of the structure described at the beginning, wherein the bottom surface of the most object recovery screw conveying device is the bottom surface of the most object conveying path. A blower device capable of blowing air upward from the blower port formed in the above is provided. The actions and effects of this characteristic configuration are as follows.

[0005]

In other words, the first product receives a sorting action during its transportation by the air blown from the air outlet formed on the bottom surface of the first most product conveying path of the first product recovery screw conveyor, and has a smaller specific gravity than the paddy. Contaminants are blown upward, and in the blown state they are blown to the rear of the aircraft by the air blown from Kara Minoh.

[0006]

As described above, since the first product once sorted and collected is laterally fed, the foreign substances are removed from the first product by blowing air. Finally, only the paddy can be obtained, and it is possible to eliminate the need for a sorting process in a later separate step, and to simplify the work.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a threshing selection device 1 mounted on a combine. The threshing sorting device 1 is configured by disposing a threshing device A on the upper side, a sorting device B on the middle part, and a collecting device C on the lower side. In the threshing device A, a handling barrel 3 for handling the harvested grain culms while sandwiching and transporting it with a feed chain 2 is mounted on a handling chamber 4 and a receiving net 5 for letting the treated material leak out. The lower part of the handling cylinder 3 is stretched on the alligator. In the sorting apparatus B, a Glen pan 6 that receives the processed material leaked from the net 5, a chaff sheave 7 and a Straw rack 8 that are sequentially positioned behind the Glen pan 6, and a Glen sheave 9 that is located below the chaff sheave 7, It is erected on the left and right frame plates that are rocked back and forth, and the Karato 10 is provided below the Glen pan 6. The recovery device C is provided with a first-item recovery screw transfer device 11 which collects a leaked substance from the Glensive 9 and feeds it laterally to one side below the Glensive 9.
A second object recovery screw conveyor device 12 is provided for collecting the leaked material from the rear end of the upper part of the Glensieve 9, the chaff sheave 7, etc., and laterally sending it to one side. A screw-type lifting device 13 that lifts the best product to a grain tank (not shown) provided in parallel in the threshing / sorting device 1 is interlockingly connected to the transport end portion of the most-goods recovery screw transport device 11. On the other hand, at the conveying end of the second object recovery screw conveyor, a thrower for delivering the second object to a processing cylinder (not shown) that is rotated in conjunction with a diffusion cylinder 14 provided at the rear of the handling cylinder 3 is provided. Is provided and the processed material from the processing cylinder is returned to the handling room 4 or the sorting apparatus B. A cross-flow fan 15 for dust removal is arranged above the straw rack 8.

As shown in FIG. 1 and FIG. 2, the first item recovery screw conveying device 11 is a bottom case 1 of the threshing sorting device 1.
6 is provided with a conveying path for the screw 17 in which a conveying path bottom wall 16A is formed in a groove shape. A large number of vertically elongated long holes 18 ... Penetrating in the front-rear direction are bored in parallel in the transport path bottom wall 16A at the transport end portion of the first object recovery screw transport device 11, and the transport path is provided. Below the bottom wall 16A, as shown in FIG. 3, a second Karasu fan 19 as a blower for blowing air upward from the vertical through-holes 18 is provided so as to be driven. Each of the vertical through-holes 18 is provided with a valve member 21 made of polyurethane resin, in which a blower port 20 having a large opening for blowing air from below and a small opening for preventing paddy from leaking when the blowing air is weak is formed.

Further, the second object recovery screw conveying device 1
2, the bottom case 16 of the threshing selection device 1 is provided with a conveying path of a screw 22 in which a second conveying path bottom wall 16B is formed in a groove shape. Then, an opening 23 is formed in the second article conveying path bottom wall 16B at the conveying end portion of the second article collecting screw conveying device 12, and crimping is performed in the opening 23 in a state in which leakage of paddy or the like is regulated. A net 24 is stretched, and a third Karako fan 25 is drivably mounted below the crimp net 24 so as to blow air upward through the crimp net 24.

With the above-mentioned structure, the foreign matters such as straw waste mixed in the first thing conveyed by the first thing collecting screw conveying device 11 are vertically penetrated by the second Karako fan 19 to the upper and lower through holes 1.
The air is blown upward by the air blown upward through the air blowing port 20 of 8, and the blown-up foreign matter is sent to the rear of the fuselage by the Karafu breeze from the Kararu 10, and is removed. Further, also in the second material collecting screw conveying device 12, foreign matters such as straw waste mixed in the second material are blown up by the air blown upward through the mesh of the crimp net 24 by the third Karako fan 25. And the foreign matters blown up are the above-mentioned Kara no 1
In response to the Karafu from 0, it will be sent to the rear of the aircraft and eliminated.

The present invention may be implemented as follows. (A) As shown in FIG. 4, an opening 28 is formed in the bottom wall 16A of the conveying path of the first object recovery screw conveying device 11,
A crimping net 29 is stretched over the opening 28, and a blower 30 as a blowing device that blows upward through the mesh of the crimping net 29 as a blowing port is provided below the crimping net 29. (B) As shown in FIG. 5, a large number of upper and lower through holes 26 ... Formed by punching the conveying path bottom wall 16A of the first object recovery screw conveying device 11 are formed as blow ports, and the upper and lower through holes 26 are formed. Provide a blower 27 as an air blower below the formation part of. (C) The blower port should not be provided only at the end of the conveyor of the most object recovery screw conveyor, but should be provided almost all over. (D) The air blower and the air blower are connected by an air blow passage such as a duct, and the air blower is not provided at the lower side of the air blow mouth but at a place apart from the air blow mouth.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing the entire structure of a threshing selection unit.

FIG. 2 is a rear view in vertical section showing a threshing selection unit.

FIG. 3 is a vertical cross-sectional rear view showing the blower.

FIG. 4 is a rear view in vertical section showing an air blower of another embodiment.

FIG. 5 is a rear view in vertical section showing an air blower of another embodiment.

[Explanation of symbols]

 10 Karin 11 11 First-item collection screw conveyor 19 Blower 20 Blower B Sorter

Claims (1)

[Claims] 1. A Karako (1) which sends a sorting wind to the sorting device (B) in a state of traversing above the first object recovery screw conveying device (11) arranged below the sorting device (B).
No. 0) is arranged in front of the most object recovery screw carrier device (11), and in the threshing sorting section structure, a blower port formed on the bottom surface of the most object recovery screw carrier device (11) in the most object path. (20) A threshing selection section structure provided with a blower device (19) capable of blowing air upward.