Cutting part of heading machine

Abstract

The invention discloses a cutting part of a heading machine, and is suitable for a mine workings heading machine. The cutting part comprises a cutting speed reducer, a cutting arm and a cutting head, wherein the cutting speed reducer is fixedly connected with the cutting arm through a bolt; an output shaft of the cutting speed reducer is connected with a main shaft of the cutting arm through a spline; the cutting head consists of three rock crushing drill bits uniformly distributed by 120 degrees, a cutting head frame outer cover, a cutting head frame, a rotating seal, a bearing base, an inner gear ring, a cutting head main shaft, a planetary wheel component, a small gear pin shaft, three sets of six small gears uniformly distributed by 120 degrees, small gear output shafts, a bearing through cover and a bearing stifle; in work, a motor transfers power to the main shaft of the cutting arm and the cutting head main shaft in sequence through the cutting speed reducer; and then, the power is synchronously transferred to a cutting head planetary gear transmission mechanism and the three sets of small gears uniformly distributed by 120 degrees to respectively drive the cutting head frame and the cutting head output shaft to rotate to realize the revolving and the rotation of the three rock crushing drill bits, so that the driving speed of mine workings is largely increased. The cutting part is compact in structure and small in volume, and reduces specific energy consumption.

Description

Technical field [0001] The invention relates to a coal mine tunnel excavation technology, in particular to a roadheader cutting part suitable for high-efficiency excavation of mine tunnels. Background technique [0002] Roadheaders are the key equipment for rapid excavation of modern mine roadways. With the continuous development of tunneling technology in coal mines, the speed of roadheaders continues to increase, but they still cannot meet production needs, which severely restricts the efficient and high-yield operation of mines in my country. Therefore, there is an urgent need to carry out research on improving the speed of mine roadway excavation, especially the development of a new and efficient roadheader cutting part. Summary of the invention [0003] Technical problem: The purpose of the present invention is to provide a cutting part of a roadheader with compact structure, high working efficiency, and capable of rapidly digging mine tunnels in view of the problems existing...

AI Technical Summary

Problems solved by technology

[0002] The roadheader is the key equipment for rapid tunneling of modern mine roadways. With the continuous development of tunneling technology in coal mines, the speed of the roadheader continues to increase, but it still cannot meet the production demand, which seriously restricts the efficient and high-yield operation of mines in my country.

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