Novel coal cutter

Abstract

The invention discloses a novel coal cutter; the coal cutter comprises a cutter body, a first cutting device connected with the cutter body and a second cutting device; the first cutting device comprises a first power mechanism, a first driving mechanism and a first roller, wherein the first power mechanism drives the first roller by the first driving mechanism; the first power mechanism is capable of providing at least two types of power, so that the first cutting device has at least two cutting gear speeds; power of the first power mechanism can be chosen according to requirement of the exploited geology. The provided novel coal cutter uses an adjustable rotating speed mode of the coal cutter roller to solve the problem of hard rock stratum cut by a pick of the coal cutter roller, simultaneously solve the problems of normal exploitation of coal, soft rock and the like by the coal cutter. The novel coal cutter employs different cutting gear speeds according to different geologies, and is capable of effectively raising the coal mining efficiency and minimizing the loss of equipment during the exploitation process.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment, and relates to a coal shearer, in particular to a novel rock-cutting coal shearer. Background technique [0002] The geological conditions of my country's coal seams are complex, especially the thin coal seams in my country, which are widely distributed across the country, with complex geological structures, difficult selection of mining equipment, and slow mining speed. With the gradual mining of medium-thick and above coal seams, thinner coal seams and thin coal seams have become the main mining coal seams in my country. Effective mining of thin coal seams has become an urgent need. There are two main reasons for the urgent need to mine thin coal seams: 1. It can greatly improve the resource recovery rate and avoid waste of resources; 2. As the need for mining in the liberated seam, it avoids gas and other safety needs that affect the mining of other coal seams. [0003] The geol...

AI Technical Summary

Problems solved by technology

[0005] Some (extremely) thin coal seams cannot be effectively mined, which affects the survival of coal mining enterprises

At present, there is no coal mining equipment in our country that can satisfy both high-efficiency coal mining and hard rock formation mining. In view of the complexity of coal seam conditions in our country, especially the mining of thin and extremely thin coal seams in our country, it is urgent to develop a new type of coal mining equipment. The rock-cutting coal shearer solves the mining problem of the coal shearer passing through the hard rock formation and gangue on the working face

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