TBM hob abrasion detection device

Abstract

The invention discloses a TBM (tunnel boring machine) hob abrasion detection device comprising a concave shaped shell, the inward concave side wall of which is made of a transparent material. Two ends of the concave shaped shell inward concave side wall are an optical signal emission end and a receiving end respectively. The optical signal emission end can emit a set of parallel laser beams, and the optical signal receiving end is a set of photosensitive sensors, so that a plurality of parallel optical paths can be formed, and the on-off state of the optical paths can be determined by the abrasion degree of a hob ring. The device is also provided with a cleaning structure, a power supply and a control system. The control system receives data coming from the photosensitive sensors, and transmits the data to a TBM operation room host machine. With the advantages of simple structure, convenient installation, high efficiency and reliable work, strong practicality, cheapness, portability, easy control and the like, the TBM hob abrasion detection device provided in the invention also can eliminate the optical path breakover problem probably caused by rock powder during use, and is especially suitable for hard rock tunneling TBM hobs, thus making real time dynamic abrasion detection on the hob installed on a cutterhead become possible.

Description

technical field [0001] The invention relates to a hob wear detection device, in particular to a hard rock hob dynamic wear detection device. Background technique [0002] With the widespread use of tunnel boring machines (TBM) in engineering, it has gradually been discovered that tool wear has become a key issue affecting the quality, progress and safety of the project during construction. A single tool was first damaged during work, and the adjacent parts of the tool Or the tools in the same radial direction are subject to eccentric loads, which intensifies the wear of other tools, which in turn leads to the overall eccentric load of the cutter head, and finally causes the cracking and disintegration of the entire cutter head. At present, the wear of the hob is usually estimated by construction experience or theoretical calculation, but this can only be judged qualitatively, which is very subjective, and it cannot track and monitor the working condition of a single hob in r...

AI Technical Summary

Problems solved by technology

[0002] With the widespread use of tunnel boring machines (TBM) in engineering, it has gradually been discovered that tool wear has become a key issue affecting the quality, progress and safety of the project during construction. A single tool was first damaged during work, and the adjacent parts of the tool Or the tools in the same radial direction are subjected to partial load force, which makes the wear of other tools intensified, which leads to the overall partial load of the cutter head, and finally causes the cracking and disintegration of the entire cutter head

At present, the wear of the hob is usually estimated by construction experience or theoretical calculation, but this can only be judged qualitatively, which is very subjective, and cannot track and monitor the working condition of a single hob in real time

Or modify the existing hob structure, which will undoubtedly increase the difficulty and cost of manufacturing

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