A combine harvester screen

A technology for combine harvesters and sieves, which is applied to harvesters, cutters, agricultural machinery and implements, etc. It can solve problems such as difficult installation, easy failure, and complex structure, and achieve low cost, high reliability, and clear The effect of large selection

Active Publication Date: 2018-08-24
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 combine harvester screen
  • A combine harvester screen
  • A combine harvester screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A combine harvester having such figure 1 , 2 A kind of cleaning screen shown in , 3, comprises screen frame 6, screen sheet 4, draft plate 5, lower screen plate 3 and wave plate 2, and screen sheet 4 is installed between the two sidewalls of screen frame 6, The lower sieve plate 3 is located at the bottom of the sieve frame 6 and below the sieve sheet 4, the draft board 5 is installed between the two side walls of the sieve frame 6 and close to the tail of the sieve sheet 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.

[0034] like Figure 4 , a plurality of round steel wires (such as Figure 5 , 2-6mm thick, preferably 4mm) made of sieve bar 41, the sieve bar has a bent part 411, the bent part is provided with a knuckle 4111, and the length direction of the sieve bar 41 is provided with a first bent part 411a and a second bent part 411a at intervals. The opening directions of the corners of...

Embodiment 2

[0039] A combine harvester having such figure 1 , 2 A kind of cleaning screen shown in , 3, comprises screen frame 6, screen sheet 4, draft plate 5, lower screen plate 3 and wave plate 2, and screen sheet 4 is installed between the two sidewalls of screen frame 6, The lower sieve plate 3 is located at the bottom of the sieve frame 6 and below the sieve sheet 4, the draft board 5 is installed between the two side walls of the sieve frame 6 and close to the tail of the sieve sheet 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.

[0040] like Figure 4, the longitudinal direction of the sieve sheet is provided with a plurality of sieve bars 41 made of metal wire-shaped materials (such as square steel wires with a side length of 4mm) with a cross-section outer circle diameter of 2-6mm. The sieve bars have a bending part 411, and the bending part There is a knuckle 4111, and the lengthwise direction of th...

Embodiment 3

[0045] A combine harvester having such figure 1 , 2 A kind of cleaning screen shown in , 3, comprises screen frame 6, screen sheet 4, draft plate 5, lower screen plate 3 and wave plate 2, and screen sheet 4 is installed between the two sidewalls of screen frame 6, The lower sieve plate 3 is located at the bottom of the sieve frame 6 and below the sieve sheet 4, the draft board 5 is installed between the two side walls of the sieve frame 6 and close to the tail of the sieve sheet 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.

[0046] like Figure 4 , The sieve is formed by stamping and bending steel plates. In particular, it includes a screen bar 41 arranged in parallel in the longitudinal direction. The screen bar has a bent portion 411, and the bent portion is provided with a knuckle 4111. The length direction of the screen bar 41 is provided with a first bent portion 411a and a second bent portio...

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PUM

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Abstract

The invention relates to a screen piece, in particular to a screen piece of a combinational harvester. The screen piece of the combinational harvester is characterized in that a plurality of screen strips are arranged in parallel in the longitudinal direction; each screen strip is provided with a bent portion, the bent portion is provided with a folded corner, a first bent portion and a second bent portion are arranged at intervals in the length direction of each screen strip, and the folded corners of the first bent portion and the second bent portion are opposite in opening directions; the folded corner of the first bent portion is folded upwards to form a first angle with the plane of the screen piece; and the first bent portion of one of two adjacent screen strips is overlapped with the bent portion of the other one of the two adjacent screen strips, and two end portions of the fold corner of the first bent portion are respectively fixedly connected with the second bent portion. The screen piece of the combinational harvester has the advantages of simple structure, low cost, light weight, convenience in production and installation, high reliability, long service life, high cleaning capacity, good cleaning effect and the like.

Description

technical field [0001] The invention relates to a sieve, in particular to a combine harvester sieve. 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 debris 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 uses a plate-shaped sieve group to screen the crops. Under the action of t...

Claims

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Application Information

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