A high-efficiency and low-loss seed cotton cleaning peach conveying device

Abstract

The invention relates to a high-efficiency low-loss seed cotton boll removal conveying device, and belongs to the technical field of agricultural machinery. The device comprises a conveying pipeline, wherein the conveying pipeline inclines to the output end from the input end from low to high; two or more levels of adjacent opening rollers which are composed of rollers and spiked nails which are distributed in the circumferential direction and extend in the radial direction are arranged between the input end of the conveying pipeline and the middle of the conveying pipeline, a circular-arc-shaped lattice bar grid is arranged below the opening rollers, a gap between every two adjacent lattice bars of the lattice bar grid ranges from 7 mm to 8 mm, a vertical boll discharge pipe which is led to a boll collection box from a closed air valve is arranged on the portion, behind the output end of the last-level opening roller, of the lower side of the conveying pipeline, a wind power jet pipe is arranged on the portion, behind the output end of the last-level opening roller, above the conveying pipe, and the lower end of the wind power jet pipe penetrates into the conveying pipeline and crookedly extends out of a jet nozzle in the conveying direction of the conveying pipeline. According to the high-efficiency low-loss seed cotton boll removal conveying device, it can be guaranteed that seed cotton output by the lattice bar grid can be conveyed to a high position continuously through positive pressure air separation, the seed cotton can be reliably prevented from entering the boll collection box along with cotton bolls, and the loss of the seed cotton is reduced significantly.

Description

technical field [0001] The invention relates to a supporting part of a cotton harvester, in particular to a high-efficiency and low-loss seed cotton cleaning and conveying device, which belongs to the technical field of agricultural machinery. Background technique [0002] Cotton harvesters are divided into unified harvesting models for one harvest and selective harvesting models for batch harvesting. In the cotton harvesting process, the unified harvesting machines represented by the comb-tooth type, double-finger rod type and brush-roller type harvest cotton bolls, boll shells and seed cotton together, and then complete the airborne peach and boll cleaning processing. The principle of seed cotton impurity cleaning is usually "clear the large impurities first, and then remove the small impurities", so cotton boll cleaning is the most important first process of seed cotton cleaning. [0003] According to the applicant's understanding, the existing unified collection cotton ...

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Problems solved by technology

But when the amount of cotton bolls is large, a positive pressure drainage wind is easily formed at the peach outlet, and as a result, some seed cotton is directly sent out from the peach outlet, resulting in the loss of seed cotton

[0005] In a word, the applicant found in practice that in the prior art, the positive pressure wind is used to convey the seed cotton, and it is easy to send the seed cotton directly from the peach discharge port, resulting in the loss of the seed cotton

[0006] In addition, the applicant has found in long-term practice that the specific gravity of cotton bolls in different regions is different due to the influence of geographical environment, and all the above-mentioned existing technologies cannot adjust the airflow parameters according to the specific gravity of cotton bolls, so it is difficult to maintain a stable and reliable Conveying capacity, thus affecting the cleaning effect of seed cotton

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