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Concave grate structure and combine harvester

A technology of concave screen and frame, 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 compact layout, improve mobility and threshing effect Effect

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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  • Concave grate structure and combine harvester
  • Concave grate structure and combine harvester
  • Concave grate structure and combine harvester

Examples

Experimental program
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Effect test

Embodiment 1

[0045] This embodiment provides a concave sieve structure, including two concave sieves, respectively a first concave sieve 2b with a feed opening 21b and a second concave sieve adjacent to the first concave sieve 2b in the crop conveying direction. The concave screen 3b, the first concave screen 2b and the second concave screen 3b have the same length, that is, the screening area has the same length. 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.

[0046] Such as figure 1 As 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 welded and fi...

Embodiment 2

[0053] This embodiment provides a combine harvester, including the concave screen structure described in Embodiment 1.

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Abstract

The invention provides a concave grate structure and a combine harvester. The concave grate structure comprises two concave grates including the first concave grate provided with a feeding port and the second concave grate adjacent to the first concave grate in the crop conveying direction, the inner screen surface of each concave grate is arc-shaped, and the axes of the two concave grates are parallel to each other; and the two concave grates are fixed on a rack at an interval in the horizontal direction. Transition openings are formed in the two concave grates respectively, the two concave grates are communicated with each other through the transition openings, a transition plate sieve is laid between the two transition openings, the feeding port is formed in the side, opposite to the transition openings in direction and away from the transition openings, of the first concave grate, and a conveying path of crops entering the concave grates from the feeding port is in an n shape. According to the structural design, the two concave grates are more compactly arranged on the harvester rack, meanwhile, the threshing and screening path of the crops passing through the concave grates can be prolonged, and the overall maneuverability and threshing effect of the harvester are greatly improved.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a 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 the crops, an...

Claims

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Application Information

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IPC IPC(8): A01F12/44A01D41/02A01D41/12
CPCA01F12/446A01D41/02A01D41/12
Inventor 王军吴江伟邹杨昊
Owner JIANGSU WORLD AGRI MACHINERY
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