Embedded cutting device of thin coal seam shearer and cutting coal mining method

Abstract

The invention discloses an embedded cutting device of a thin coal seam shearer and a cutting coal mining method. The embedded cutting device comprises a non-powered rocker arm and a double-motor traction part, the double-motor traction part comprises a traction shell body, a traction motor and a cutting motor, the traction shell body is provided with a push-pull oil cylinder and a walking wheel, the non-powered rocker arm comprises a rocker arm shell body, a cutting roller and a rocker arm transmission mechanism, and the rocker arm transmission mechanism comprises a coupling assembly, a firstcutting rocker arm transmission component and a second cutting rocker arm transmission component; the cutting coal mining method comprises the following steps of step one, moving the embedded cuttingdevice of the thin coal seam shearer; step two, cutting the thin coal seam; and step three, repeating the step one and the step two several times until mining of the whole coal face is completed. According to the embedded cutting device, the design is reasonable, the cutting motor is arranged in the traction shell body and does not swing with the rocker arm, impact load on the cutting motor is reduced, the reliability of a cutting system is improved, and the coal mining efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of coal mining machines, and in particular relates to an embedded cutting device for a thin coal seam coal mining machine and a cutting coal mining method. Background technique [0002] A thin coal seam shearer refers to a machine that mines coal in a coal seam with a maximum mineable thickness of less than 1.3m, usually in a coal seam of 0.8-1.3m. As one of the two major development trends of coal mining machines in the future, the thin coal seam shearer has a broad market space. However, due to the small mining space in the thin coal seam working face, there are many gangue and faults, the contradiction between the high power density and small size of the thin coal seam shearer has always restricted the development of the thin coal seam shearer. At present, the thin coal seam shearer is a longwall thin coal seam shearer, and the motor layout of the cutting system in the rocker arm is a single motor or a d...

AI Technical Summary

Problems solved by technology

Due to the limited size of the single motor structure, the size of the cutting motor cannot be too large, and the power increase of the cutting motor is limited, which affects the cutting efficiency of the shearer; the double motor structure has the problems of asynchronous cutting motors and different loads, and the vibration The outer dimensions of the arm are lengthened, the rocker body bears a large impact load, and the reliability is reduced

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