Superposition arm three-roller large-mining-height coal mining machine

Abstract

The invention relates to a superposition arm three-roller large-mining-height coal mining machine. The machine mainly comprises a rectangular machine body assembly, a rocker arm device, coal cutting rollers, a traction part, an electrical control system, a hydraulic control system, a rotary part, a development machine type cutting part, a top coal cutting roller and the like, wherein the rotary part is arranged on the top of the machine body assembly; the development machine type cutting part is arranged on the rotary part; the top coal cutting roller is connected to the tail end of the development machine type cutting part in a rotating mode; left and right coal cutting rollers are used for cutting coal bodies below the rotary part together under the driving action of the rocker arm device; the top coal cutting roller is used for cutting partial coal bodies above the rotary part in a lifting and lowering mode through the development machine type cutting part by controlling the extension and the retraction of an up-regulated oil cylinder; and the motion track of the top coal cutting roller is a camber line. Three coal cutting rollers are used for cutting coal layers with the same thickness and have small diameters, so that the machine has a simple manufacturing process and low production cost, and the adaptability of the machine to the variation of the coal layers is improved.

Description

technical field [0001] The invention belongs to the technical field of mining machinery, in particular to a shearer with superimposed arms and three drums for large mining height used for longwall working face mining. Background technique [0002] At present, the traditional double-drum shearer used for longwall mining includes a traveling part, a fuselage part and a cutting part hinged on the fuselage part. Above-mentioned cutting part further comprises the rocker arm that one end is hinged on fuselage part, and can rotate around its hinged shaft with fuselage part, and the other end of rocker arm is equipped with coal-cutting drum, and coal-cutting drum can rotate on rocker arm, And the outer periphery of the coal cutting drum is provided with several cutting teeth. One end of the height-adjusting oil cylinder is hinged on the fuselage part, and the other end is hinged on the cutting part. During the coal cutting process of the coal shearer, the height of the coal cuttin...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a method for longwall working face mining, which can be used in longwall working face mining, in view of the disadvantages of difficult manufacturing process, bulky volume, high energy consumption, high cost and poor adaptability of the existing double-drum shearer with large coal mining height. Under the premise of diameter and low power consumption, the superimposed arm three-drum large mining height shearer adapts to a relatively high coal mining height range

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