Cantilever type electric traction coal cutter

Abstract

The invention discloses a cantilever type electric traction coal cutter, belonging to the field of coal mining machinery. The coal cutter comprises a coal cutter body, a cutting part, a hydraulic device and a towing device, wherein the coal cutter body is in three-section type horizontal arrangement and consists of an electric cabinet, a traction box and a traveling part; the coal cutter body is of a forward-extending type for reducing the height of the coal cutter, and the main parts of the cutting part and the coal cutter body extend to the outer side of a scraper conveyor; and a cutting motor and a traction motor are both horizontally arranged and assembled and disassembled from a coal wall side so as to be disassembled and replaced conveniently. According to the cantilever type electric traction coal cutter, as the main part of the coal cutter body extends to the outer side of the scraper conveyor and goes deep into a coal bed, the height of the coal butter is effectively reduced, and the coal cutter can be used for mining an extremely thin coal bed or thin coal bed which is 0.75-1.3m thick; and travelling wheels of the travelling part reciprocate on pin tracks on the conveyor, so that the coal cutter is driven to reciprocate for coal mining, and the whole coal cutter operates stably with low fault rate.

Description

technical field [0001] The invention relates to a coal shearer, in particular to a cantilever type electric traction coal shearer, which belongs to the field of coal mining machinery. Background technique [0002] my country's coal reserves are large and diverse. Among them, the recoverable reserves of thin and extremely thin coal seams are about 6 billion tons, accounting for about 19% of the country's total coal reserves, while the output accounts for only 10.4% of the total output, which is far lower than Due to the proportion of reserves, and the proportion of production has a further downward trend, the problem of thin coal seam mining is becoming more and more prominent, which is an unavoidable practical problem. The current long-arm fully mechanized mining equipment for coal mine workers, the main body of the shearer and the main transmission part of the cutting part are located on the conveyor, and the pin rail on the conveyor is used as the running track, and the she...

AI Technical Summary

Problems solved by technology

The current long-arm fully mechanized mining equipment for coal mine workers, the main body of the shearer and the main transmission part of the cutting part are located on the conveyor, and the pin rail on the conveyor is used as the running track, and the shearer adopts chainless electric traction. , the walking wheels mesh with the pin rails on the conveyor to advance, and the height of the machine surface is large, which is not suitable for mining thin or extremely thin coal seams; Poor structural stability, high failure rate and other disadvantages

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