A method and system for state monitoring and fault diagnosis of tbm hob

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 includes a signal acquisition module, a signal transmission module and a host computer; the signal acquisition module is installed on the TBM hob On the cutter head, it is used to collect the vibration signal of the main bearing of the cutter head and the current signal of the main motor, and convert the collected signal into a digital signal that can be transmitted; the signal transmission module is used to realize the communication between the signal acquisition module and the host computer Transmission to transmit digital signals to the host computer; the host computer is set up in the TBM main control room to receive the signal transmitted by the signal transmission module, and process and analyze the received signal to obtain the current operating status of the cutterhead and TBM hob and fault status; in summary, it can effectively realize the real-time monitoring and diagnosis of the TBM hob, and also effectively avoid the problems of acquisition signal distortion and mixed signal background, thus greatly improving the accuracy of monitoring and diagnosis.

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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