Brush roll cotton picker

Abstract

The invention relates to a brush roll cotton picker and belongs to the technical field of agricultural machinery. The brush roll cotton picker comprises a picking table, an air conveying device, a cotton boll separating device, an impurity cleaning device and a cotton collecting box which are arranged on a self-walking chassis, the impurity cleaning device comprises primary, secondary and tertiary tooth rollers, one side of the primary tooth roller is provided with an upper brush, one side of the secondary tooth roller is provided with a middle brush, one side of the tertiary tooth roller is provided with a lower brush, sides of the primary, secondary and tertiary tooth rollers are provided with interval arranged beating rods respectively, an upper brush roller is arranged below the primary tooth roller, a lower brush roller with bristles which simultaneously contact with outer circles of the secondary and tertiary tooth rollers is arranged below the secondary tooth roller, an arc barrier is mounted on the lower side of the tertiary tooth roller, one side in a casing, which is far from the beating rods, is provided with a cotton collecting flow channel which conveys air flow from bottom to top, and the cotton collecting flow channel is provided with upper and lower flow suction openings. The bottom of the cotton collecting flow channel is connected with an air outlet of a cotton conveying fan. By means of the brush roll cotton picker, cotton fiber damages can be remarkably reduced, the impurity cleaning effect is improved, the impurity content rate is lower than 10%, meanwhile, the recycling effect is enhanced, and the unginned cotton loss can be greatly reduced.

Description

technical field [0001] The invention relates to a cotton harvesting machine, in particular to a brush roller type cotton picking machine, which belongs to the technical field of agricultural machinery. Background technique [0002] Cotton harvesters can be divided into two types according to the harvesting method: one is a selective harvester, and the other is a unified harvester. Harvesters are further divided into large spindle picking and small air suction. The air-suction type is only suitable for a family of small-area growers, and the promotion value is not high, and almost no one uses it. Due to the high cost of large-scale picking spindles, the high cost of use and maintenance limits its application range. It is only used when economic conditions permit. The Xinjiang Corps with a large cotton planting area is widely used, and the local use is less. The unified harvester has the advantages of simple structure, low cost and good agronomic adaptability. But its bigge...

AI Technical Summary

Problems solved by technology

[0006] Practice has proved that the device is effective in solving incomplete separation of seed cotton, clogging of the miscellaneous outlet and improving the cleaning efficiency. However, it is difficult to reduce the impurity rate, and the loss rate of the impurity removal is too high; the impurity removal process has to be repeated, so it is easy to damage the cotton fiber

In addition, there are also problems such as poor cleaning effect of cotton stalks, easy to cause blockage and affect normal operation, and discharge of micro impurities into the air, which can easily cause secondary pollution of seed cotton

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