Single-air-duct cotton picking head with high picking net rate

Abstract

The invention belongs to the technical field of cotton picking machines, and relates to a single-air-duct cotton picking head with a high picking net rate. The single-air-duct cotton picking head comprises a machine shell, a feeding port and a feeding channel are formed in one side of the machine shell, and a discharging port and a discharging air duct are formed in the same horizontal plane of the other side of the machine shell. A first roller and a second roller are arranged in the machine shell in the horizontal direction, a plurality of first picking spindles are evenly distributed on the first roller, and a plurality of second picking spindles are evenly distributed on the second roller. The first roller and the second roller are horizontally distributed on the same straight line; a first doffing disc is arranged on one side of the first roller, and a second doffing disc is arranged on one side of the second roller; and the discharging air duct comprises a connecting pipe, a transition pipe, a straight tail pipe and an arc-shaped material pipe which are sequentially connected, and a negative pressure pump communicating opening is formed in the outer part of the connecting pipe. The two in-line aligned cotton picking rollers are adopted for picking cotton, the picked cotton can be conveyed only through a single air duct, and blockage is avoided; and cotton fibers are kept intact during cotton picking, the net picking rate reaches 97%, and the slag content is low.

Description

technical field [0001] The invention belongs to the technical field of cotton pickers, and in particular relates to a cotton picking head with a high harvesting rate and a single air duct. Background technique [0002] Cotton is a major economic crop in Xinjiang, my country. With the development of science and technology, agricultural production is gradually becoming mechanized; manual picking of cotton is time-consuming and laborious, and does not meet the requirements of mechanized production. With the development of agricultural machinery, cotton pickers have appeared on the market one after another. Electric cotton pickers can effectively increase the speed of manual cotton picking. [0003] In the prior art, in order to improve the cleaning rate of the cotton picking head of the cotton picking machine, the Starlight 4MZ-3 cotton picking machine and the American Case adopt a unique front and rear double-drum opposite arrangement, such as figure 1 As shown; when the cott...

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Problems solved by technology

[0003] In the prior art, in order to improve the yield of the cotton picking head of the cotton picker, the Starlight 4MZ-3 cotton picker and the American Case use a unique pair of front and rear double drums. arrangement, as shown in Figure 1; this kind of dislocation When the cotton picking drum is set up for picking, although the picking rate of the cotton picking machine is as high as 95%, impurities such as leaves and stems are also picked in at the same time, and the slag content rate is high; during the picking process, the cotton fibers are severely damaged ; and because the cotton picking drum is misplaced, the cotton picking head needs to be provided with an air duct on both sides of the drum respectively, a total of two air ducts, the cotton picking head has a complex structure and a high spontaneous combustion rate; in addition, due to the current cotton picking Due to the very harsh working environment of the cotton picker, it is easy to cause blockage of the air duct, reduce the life of other related components, and affect the normal operation, maintenance, and cleaning of the cotton picker.

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