A Downhole Auxiliary Cutting System for Tunneling Machine

Abstract

The invention discloses an underground auxiliary cutting system for a heading machine. The underground auxiliary cutting system comprises a cutting expansion displacement sensor, a cutting rotation angle sensor, a body pitching angle sensor, a cutting pitching angle sensor, a photography instrument, a display operation terminal and an electric control cabinet, wherein the cutting expansion displacement sensor is installed on a cutting arm of the heading machine and used for detecting the expansion displacement of the cutting arm, the cutting rotation angle sensor is installed on a rotation base of the cutting arm and used for detecting the rotation angle of the cutting arm. The body pitching angle sensor is installed on a heading machine body and used for detecting the slant angle of the heading machine body relative to a slant angle. The cutting pitching angle sensor is installed on the cutting arm of the heading machine and used for detecting the pitching angle of the cutting arm relative to the heading machine body. The photography instrument is installed on the rotation base of the cutting arm. The display operation terminal is installed in a driving cab of the heading machine. The electric control cabinet is installed on the heading machine body. The underground auxiliary cutting system can be used for assisting the heading machine in underground operation, and excessive excavation and under-excavation are avoided.

Description

technical field [0001] The invention relates to the technical field of roadheaders, in particular to an auxiliary underground cutting system for roadheaders. Background technique [0002] Roadheader is a machine used to excavate underground tunnels. With the rapid development of comprehensive coal mining mechanization, coal mine operations have higher and higher requirements for tunneling speed. On the basis of ensuring the tunneling speed, over-excavation and The occurrence of under-excavation phenomenon plays an important role in improving the forming quality of roadway excavation to ensure safe production and improve economic benefits. The roadheader auxiliary system can assist in controlling the cutting track and the shape of the cutting section during the working process of the roadheader. The existing roadheader auxiliary system uses the method of real-time comparison of the cutting head running track and the pre-stored section shape, and has achieved good results. Ho...

AI Technical Summary

Problems solved by technology

The roadheader auxiliary system can assist in controlling the cutting track and the shape of the cutting section during the working process of the roadheader. The existing roadheader auxiliary system uses the method of real-time comparison of the cutting head running track and the pre-stored section shape, and has achieved good results. However, because the downhole positioning problem is not considered, the cutting error is generally too large, which easily leads to the occurrence of overbreak or underbreak

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