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A cleaning screen and combine harvester

A technology for cleaning sieves and sieves, applied in the field of cleaning sieves, can solve problems such as easy failure, difficult installation, complex structure, etc., and achieve the effects of high reliability, low cost, and large cleaning volume.

Active Publication Date: 2018-06-15
XINGGUANG AGRI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High cost, heavy weight, complex structure, difficult installation, and prone to failure

Method used

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  • A cleaning screen and combine harvester
  • A cleaning screen and combine harvester
  • A cleaning screen and combine harvester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A combine harvester with features such as figure 1 , 2 A cleaning screen shown in 3 and 3 includes a screen frame 6, a screen piece 4, a draft board 5, a lower screen board 3, and a wave plate 2, and the screen piece 4 is installed between the two side walls of the screen frame 6, The lower sieve plate 3 is located at the bottom of the sieve frame 6 and below the sieve plate 4, the scraping plate 5 is installed between the two side walls of the sieve frame 6, close to the tail of the sieve plate 4, and the wave plate 2 is installed on both sides of the sieve frame 6. between the walls, near the front of the screen 4.

[0043] like Figure 4 , the longitudinal direction of the screen is parallel with a plurality of round steel wires (such as Figure 5 , 2-6mm thick, preferably 4mm) made of screen bar 41, the screen bar has a bent portion 411, the bent portion is provided with a corner 4111, the length direction of the screen bar 41 is provided with a first bent portio...

Embodiment 2

[0048] A combine harvester with features such as figure 1 , 2 A cleaning screen shown in 3 and 3 includes a screen frame 6, a screen piece 4, a draft board 5, a lower screen board 3, and a wave plate 2, and the screen piece 4 is installed between the two side walls of the screen frame 6, The lower sieve plate 3 is located at the bottom of the sieve frame 6 and below the sieve plate 4, the scraping plate 5 is installed between the two side walls of the sieve frame 6, close to the tail of the sieve plate 4, and the wave plate 2 is installed on both sides of the sieve frame 6. between the walls, near the front of the screen 4.

[0049] like Figure 4 , the longitudinal direction of the sieve piece is provided with a plurality of sieve bars 41 made of metal wire-shaped materials with a diameter of 2-6mm in the outer circle of the cross-section (such as square steel wires with a side length of 4mm). There are folded corners 4111 , the first folded portion 411a and the second fol...

Embodiment 3

[0054] A combine harvester with features such as figure 1 , 2 A cleaning screen shown in 3 and 3 includes a screen frame 6, a screen piece 4, a draft board 5, a lower screen board 3, and a wave plate 2, and the screen piece 4 is installed between the two side walls of the screen frame 6, The lower sieve plate 3 is located at the bottom of the sieve frame 6 and below the sieve plate 4, the scraping plate 5 is installed between the two side walls of the sieve frame 6, close to the tail of the sieve plate 4, and the wave plate 2 is installed on both sides of the sieve frame 6. between the walls, near the front of the screen 4.

[0055] like Figure 4 , the screen is formed by stamping and bending of steel plate. Specifically, it includes a screen bar 41 arranged in parallel in the longitudinal direction. The screen bar has a bent portion 411. The opening directions of the corners of the bent portion 411a and the second bent portion 411b are opposite to each other. like Fig...

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Abstract

The invention relates to a cleaning sieve of a combined harvester, in particular to a cleaning sieve and a combined harvester with the same. Multiple sieve bars are parallelly arranged on a sieve piece of the cleaning sieve in the longitudinal direction, each sieve bar is provided with bending portions which are each provided with a bending angle, first bending portions and second bending portions are arranged on each sieve bar in a spaced mode in the length direction, and the opening direction of the bending angle of each first bending portion is opposite to that of the bending angle of the corresponding second bending portion; the bending angles of the first bending portions are bent upwards, and a first included angle is formed between each first bending portion and the sieve piece plane; for every two adjacent sieve bars, the first bending portion of one sieve bar is overlapped with the second bending portion of the other sieve bar, and the two ends of the bending angle of the first bending portion are fixedly connected with the second bending portions respectively. The cleaning sieve has the advantages of being simple in structure, low in cost, light in weight, convenient to make and install, high in reliability, long in service life, high in cleaning capacity, good in cleaning effect and the like.

Description

technical field [0001] The invention relates to a cleaning screen of a combine harvester, in particular to a cleaning screen and a combine harvester. Background technique [0002] With the progress of society and the development of science and technology, more and more machinery and equipment are applied to agricultural production, and the combine harvester is one of them. The combine harvester can complete the harvesting, threshing, separation of stalks, removal of miscellaneous residues and other processes of cereal crops at one time, and directly obtain various corresponding finished or semi-finished crops from the field. [0003] The combine harvester usually has a cleaning device, which screens the threshed grains under the action of the fan and the vibrating screen, discharges the fine straw out of the cleaning mechanism, and selects the qualified grains and sends them to the grain unloading mechanism. The cleaning mechanism of the existing combine harvester all uses ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01F12/44A01D41/12
CPCA01D41/12A01F12/446
Inventor 章沈强冯涛李伟
Owner XINGGUANG AGRI MACHINERY
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