Screening system and combine harvester

A screen frame and tail screen technology, which is applied to harvesters, cutters, agricultural machinery and tools, etc., can solve the problems of waste of resources and low screening efficiency

Pending Publication Date: 2021-04-23
JIANGSU WORLD AGRI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Therefore, the technical problem to be solved in the present invention is to overcome the low scr...

Method used

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  • Screening system and combine harvester
  • Screening system and combine harvester
  • Screening system and combine harvester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] This embodiment provides a screening system, such as figure 1 , Figure 5 , Figure 11 with Figure 12 As shown, it includes vibrating screen H, front sealing structure, grain separation structure and driving structure. The vibrating screen H has an upper screen area and a lower screen 8d area. In the upper screen area, a lifting structure is set at the end of the corrugated plate 6d to increase the drop between the corrugated plate 6d and the fish scale screen 7d, and cooperate with the tail screen 2h at the end to form two Duan Yangsheng fully shakes the agglomerated crops to loosen them, so as to avoid the entrainment of crop stalks and discharge of grains, resulting in waste. At the same time, a front sealing structure is provided at the front end of the corrugated plate 6d to prevent the grain from being thrown out by the vibrating screen H. A grain separation structure is set between the grain collection area M and the residue collection area N below the vibra...

Embodiment 2

[0111] This embodiment provides a combine harvester, including the screening system in Embodiment 1.

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Abstract

The invention provides a screening system and a combine harvester. The screening system comprises a vibrating screen, a front sealing structure, a grain separating structure and a driving structure. The vibrating screen is provided with an upper screen area and a lower screen area, a lifting structure is arranged at the tail end of a corrugated plate in the upper screen area to increase the fall between the corrugated plate and a scaly screen, two-section lifting is formed in cooperation with a tail screen at the tail end, clustered crops are fully shaken to be scattered and loosened, and waste caused by the fact that crop straw carries grains to be discharged is avoided. Meanwhile, the front sealing structure is arranged at the front end of the corrugated plate to prevent the grains from being thrown out by the vibrating screen. The grain separating structure is arranged at the position, between a grain collecting area and an impurity collecting area, below the vibrating screen, so that clean grains are effectively separated from impurities such as straw, the grains are collected more completely and cleanly, waste is avoided, and the screening efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a screening system and a combine harvester. Background technique [0002] Crawler combine harvester threshing system can be divided into crawler combine harvester threshing system can be divided into vertical axial flow threshing and cleaning system and horizontal axial flow threshing and cleaning system, these two forms of threshing and cleaning system are the most popular in the market The main structural form used above. [0003] In the screening area of ​​the existing combine harvester, the reciprocating vibration of the vibrating screen separates and screens the crop grains and stalks and other impurities. The tail end of the machine is inclined downwards to guide the movement of the crops, but the vibration component of the vibrating screen in the horizontal direction will still cause the grains to fly out from the front end of the vibrating screen. [0004...

Claims

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Application Information

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IPC IPC(8): A01F12/44A01F12/00A01D41/02A01D41/12
CPCA01F12/446A01F12/00A01F12/44A01D41/02A01D41/12
Inventor 邢立成王军王佳军
Owner JIANGSU WORLD AGRI MACHINERY
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