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Adjustable concave plate screen structure and combine harvester

A technology for adjusting the structure and concave screen, which is applied in the direction of harvesters, cutters, agricultural machinery and implements, etc., can solve the problems of crop loss, short screening path of concave screen, etc., achieve good effect, prolong threshing separation and screening time, The effect of extending the transmission path

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

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the short screening path of the concave plate screen corresponding to the drum in the prior art, which is easy to cause crop loss

Method used

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  • Adjustable concave plate screen structure and combine harvester
  • Adjustable concave plate screen structure and combine harvester
  • Adjustable concave plate screen structure and combine harvester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This embodiment provides an adjustable concave sieve structure, including two concave sieves, respectively the first concave sieve 2b with the feed opening 21b and the first concave sieve 2b adjacent to the crop conveying direction. The length of the second concave screen 3b, the first concave screen 2b and the second concave screen 3b are the same, that is, the length of the screening area is the same. The inner screen surface of each concave screen is arc-shaped, and the axes of the two concave screens are parallel to each other, and are fixed on the frame 1 at intervals along the horizontal direction.

[0052] Such as figure 1As shown, each concave screen includes two side guard plates 4b, two connecting beams 5b, multiple grid bars 51b, multiple steel wires 41b and several reinforcing ribs 8b. The two side guard plates 4b are arc-shaped respectively. The side guard plates 4b are coaxial and oppositely arranged. The two ends of the two side guard plates 4b are welde...

Embodiment 2

[0061] This embodiment provides a combine harvester, including the adjustable concave screen structure described in Embodiment 1.

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Abstract

The invention provides an adjustable concave plate screen structure and a combine harvester. A limit adjusting structure is arranged at a notch formed between the outer screen surfaces of two concave plate screens and a transition screen plate, and the limit adjusting structure is detachably fixed on the concave plate screens at the two sides. When the limit adjusting structure is not arranged, part of crops only pass through the first concave plate screen and then fall into a vibrating screen at the lower portion from the notch to directly enter the subsequent process, and when the limit adjusting structure is arranged, the crops enter the second concave plate screen from the first concave plate screen through the transition plate screen and pass through the complete n-shaped trend, a conveying path is longer, and the threshing and screening effect is better.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to an adjustable concave screen structure and a combine harvester. Background technique [0002] The crawler combine harvester threshing system can be divided into longitudinal axial flow threshing and cleaning system and horizontal axial flow threshing and cleaning system. These two types of threshing and cleaning systems are the main structural forms currently used in the market. [0003] The existing transverse axial flow threshing and cleaning system is divided into a single-drum transverse axial flow threshing and cleaning system and a 1.5-drum transverse axial flow threshing and cleaning system. Single drum is threshing through one drum, and the trip of crops is only the length of one drum. 1. In the 5-drum system, a feeding drum with half the length is added in front of the single drum, that is, the added half drum only plays the role of continuously feeding t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01F12/44A01D41/02A01D41/12
CPCA01F12/446A01F12/448A01D41/02A01D41/12
Inventor 王军王佳军王馨瑶
Owner JIANGSU WORLD AGRI MACHINERY
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