TBM hob state monitoring and fault diagnosis method and system

Abstract

The invention belongs to the technical field of safe operation of TBM hobs, and discloses a TBM hob state monitoring and fault diagnosis method and system. The system comprises a signal acquisition module, a signal transmission module and an upper computer; the signal acquisition module is installed on a cutter head of a TBM hob and is used for acquiring vibration signals of a main bearing of thecutter head and current signals of a main motor and converting the acquired signals into transmittable digital signals; the signal transmission module is used for realizing communication transmissionbetween the signal acquisition module and the upper computer so as to transmit the digital signals to the upper computer; and the upper computer is arranged in a TBM main control room and used for receiving the signals transmitted by the signal transmission module and processing and analyzing the received signals so as to obtain the current operation state and fault state of the cutter head and the TBM hob. To sum up, the real-time monitoring and diagnosis of the TBM hob can be effectively realized, and the problems of distortion of collected signals and mixed signal backgrounds are effectively avoided, so that the monitoring and diagnosis accuracy is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of safe operation of TBM hobs, and in particular relates to a TBM hob state monitoring and fault diagnosis method and system. Background technique [0002] A TBM hob is an excavation tool for breaking hard rock, its function is to cut face rock and flake the rock off the face. It is widely used in the construction of subway tunnels, railway tunnels, water diversion tunnels, underground mineral mining tunnels and urban underground pipe networks in underground space engineering. [0003] The wear state of the above-mentioned TBM hob is one of the key factors affecting the normal excavation of the TBM, and the TBM hob is a consumable part, and the cost is relatively high; specifically, during the excavation process, the loss of the TBM hob accounts for the entire One-fifth to one-fourth of the project cost, some as high as one-third, and the tool purchase cycle is relatively long. [0004] In addition, the in...

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Problems solved by technology

[0003] The wear state of the above-mentioned TBM hob is one of the key factors affecting the normal excavation of the TBM, and the TBM hob is a consumable part, and the cost is relatively high; specifically, during the excavation process, the loss of the TBM hob accounts for the entire One-fifth to one-fourth of the project cost, some as high as one-third, and the tool purchase cycle is relatively long

[0004] In addition, the inspection, maintenance and replacement of the TBM hob in the prior art are relatively complicated, and the wear state of the TBM hob cannot be accurately judged. If the tool is changed too early, resources will be wasted, and if the tool is changed too late, it will affect the project. progress, which will directly affect the cost and duration of the project

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