TBM hob full-state real-time on-line monitoring system and measurement method thereof

Abstract

The invention discloses a TBM hob full-state real-time on-line monitoring system and a measurement method thereof. The system comprises an inductive sensor, a Hall component, a strain gauge and a sensor base. The inductive sensor and the Hall component are arranged in the sensor base. The inductive sensor corresponds to a cutter ring of a TBM hob. The TBM hob is provided with a magnetic block which is opposite to the Hall component. A shaft hole of the TBM hob is provided with a support wedge block and a tensioning wedge block. The strain gauge is arranged in the support wedge block. A signalprocessing unit is arranged in the sensor base. The inductive sensor, the Hall component and the strain gauge are connected to the signal processing unit. The signal processing unit is connected to aTBM upper computer through a wireless communication module. In the invention, four index parameters of an abrasion loss of the TBM hob, a rotation speed of the TBM hob, a stress of the TBM hob and a working temperature of the TBM hob can be monitored; and through real-time monitoring, a working state of the TBM hob can be timely controlled and a damaged condition of the TBM hob can be timely knownso that the TBM hob can be timely repaired or replaced.

Description

technical field [0001] The invention relates to the field of TBM hob monitoring, in particular to a TBM hob full-state real-time on-line monitoring system and a measurement method thereof. Background technique [0002] As a large-scale construction machinery, TBM has a harsh working environment and a complex and huge system. Any problem in any part may cause the system to shut down, resulting in a greatly reduced construction efficiency. The TBM tool is the direct implementer of the TBM's forward tunneling, and it is extremely easy to wear and tear. The amount of tool wear directly affects the construction efficiency and indirectly increases the construction cost. According to the past construction situation, in the time-consuming work of TBM, the inspection and excessive wear of the tool lead to unexpected downtime of the equipment, the replacement and maintenance of the time and cost are about 30% of the overall project. Therefore, it is necessary to monitor the overall ...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of unreliable monitoring data of the existing TBM hob wear detection device and method, the present invention discloses a TBM hob full-state real-time on-line monitoring system and its measurement method

Set up inductive sensors, Hall elements, and strain gauges to monitor the wear of the TBM hob, the speed of the TBM hob and the force of the TBM hob in real time. Through real-time monitoring of multiple indicators, the error can be reduced to less than 2 %, through data communication with the TBM host computer, it can ensure timely shutdown and maintenance when the TBM hob is seriously damaged or other TBMs are unwell and continue to excavate, which solves the problem of unreliable monitoring data in the existing technology

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