Multi-grade seed cotton heavy impurity clearing and separating device

Abstract

The invention relates to a multi-grade seed cotton heavy impurity clearing and separating device and belongs to the technical field of cotton machining machines. The multi-grade seed cotton heavy impurity clearing and separating device is installed at the back end of a picking platform of a mechanical cotton harvester. A seed cotton flow cluster picked by a cotton picker is conveyed by the picking platform to the multi-grade seed cotton heavy impurity clearing and separating device. The multi-grade seed cotton heavy impurity clearing and separating device is of a long-strip sequentially layered structure as a whole and comprises a first-grade heavy impurity removing mechanism, a second-grade heavy impurity recycling mechanism, a third-grade heavy impurity recycling mechanism and a pipeline enabling the first-grade heavy impurity removing mechanism, the second-grade heavy impurity recycling mechanism and the third-grade heavy impurity recycling mechanism to be connected. According to the multi-grade seed cotton heavy impurity clearing and separating device, multi-grade sequential clearing is adopted during heavy impurity clearing, the impurity clearing rate is high, the seed cotton loss is low, and secondary impurities mixed with the seed cotton in the clearing process are reduced; graded recycling of cotton bolls and branches is achieved, the phenomenon that cotton fiber is dyed in the follow-up cotton boll processing process is reduced, and the work efficiency of an onboard seed cotton pre-processing machine is improved; and a tangential flow guide grid has the functions of clearing a part of cotton leaves, dust and the like. The multi-grade seed cotton heavy impurity clearing and separating device is suitable for seed cotton heavy impurity clearing of the cotton picker, an on-site seed cotton pre-processing machine and the like.

Description

technical field [0001] The invention relates to a multi-stage seed cotton heavy impurity sorting device, which belongs to the technical field of cotton processing machinery. Background technique [0002] At present, the cotton mechanized harvesting technology representing the world's advanced level is John Deer (Deer) and Case (Case) in the United States. On the basis of digesting and absorbing foreign advanced technology, our country has demonstrated and promoted the horizontal picking cotton picker in Xinjiang Corps, which has the advantages of high production efficiency and low impurity content; but it is not suitable for high-plant, high-density cotton varieties and Planting agronomy is difficult to promote on a large scale across the country; and the unified harvesting machines represented by brush-roller cotton pickers and finger-brush cotton pickers have a wide range of applications and low production, use and maintenance costs. And the recovery rate is high, and it ...

AI Technical Summary

Problems solved by technology

However, during the picking process of the cotton picker, due to the uneven surface, sometimes the picking is too low and the soil is blocked and cannot be discharged, and the immature stiff fruit is not separated and mixed into the subsequent airborne pretreatment machine, which will cause damage to the seed cotton. Adverse effects such as dyeing, reduction of seed cotton quality and cleaning efficiency

[0006] It can be seen that the heavy and miscellaneous cleaning technology is still single and traditional. When encountering changing working conditions in the field, the expected cleaning effect cannot be achieved, resulting in problems such as blocked soil, unclean cotton bolls, and dyeing of seed cotton.

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