Coal cutter cutting part with differential speed separation roller

Abstract

The invention discloses a coal cutter cutting part with a differential speed separation roller. A motor driving part comprises a left cutting motor and a right cutting motor, both the left cutting motor and the right cutting motor are arranged in a cutting part box, and transmission connection of the left cutting motor as well as the right cutting motor and a roller output part is achieved througha gear transmission part; and the roller output part comprises a high-speed output shaft, a low-speed output shaft, a middle supporting frame, a high-speed roller, a far-end supporting frame and a low-speed roller, a cutting roller is separated into two coaxially-rotated parts, and differential speed rotating of the two parts of the roller can be achieved. The front end low-speed roller is low inrotating speed, so that cut coal briquettes have good axial mobility, and the coal briquettes can be better conveyed into a revolving area of a wheel rotating blade of the high-speed roller, the rotating speed of the high-speed roller is far higher than that of the low-speed roller, therefore, the coal briquettes can obtain the higher tangential speed and axial speed through action of the high-speed roller so that coal can cross the distance from the tail end of the high-speed roller to a middle groove of a scraper machine, and the roller conveying and coal loading processes are better finished.

Description

technical field [0001] The invention relates to the technical field of coal mine machinery, in particular to a cutting part of a thin coal seam shearer with a differential speed separation drum. Background technique [0002] In recent years, my country's coal mining industry has developed rapidly, and the demand for various functions of mining machinery has also changed rapidly. The coal mining machine is one of the important equipment for the mechanization and automation of coal mine production. In thin coal seam mining, in order to increase production, the cutting depth of the thin coal seam double-drum shearer used in the fully mechanized coal mining face is generally above 600mm. With the increase of the cutting depth, the coal cutting volume also gradually increases. Theoretical analysis shows that the low speed of the drum is beneficial to the axial flow of coal, but the lower speed results in a lower coal throwing speed of the drum, and the coal loading effect of the ...

AI Technical Summary

Problems solved by technology

Theoretical analysis shows that the low speed of the drum is beneficial to the axial flow of coal, but the lower speed results in a lower coal throwing speed of the drum, and the coal loading effect of the shearer is not good, so that the mining height in the thin coal seam is small Under the circumstances, the cut coal blocks are piled up in the goaf, resulting in serious floating coal, affecting the walking of the shearer, and affecting the movement of the support

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