TBM hobbing cutter wear online real-time monitoring device and monitoring method

A real-time monitoring and hob technology, applied in measuring devices, electrical devices, instruments, etc., can solve problems such as hob wear monitoring, achieve strong wear resistance, ensure measurement accuracy, and ensure stable and reliable electromagnetic signal sensitivity.

Active Publication Date: 2016-02-24
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, for the monitoring of TBM hob wear, there are not yet mature equipment and methods that can be widely used. It is urgent to develop a n

Method used

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  • TBM hobbing cutter wear online real-time monitoring device and monitoring method
  • TBM hobbing cutter wear online real-time monitoring device and monitoring method
  • TBM hobbing cutter wear online real-time monitoring device and monitoring method

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Embodiment Construction

[0022] Among them, hob 1, knife holder 2, sensor base 3, tetrafluoroethylene protective shell 4, magnetic sensitive Z element 5, permanent magnet 6, wire 7, bolt 8, AB glue 9, A power supply 10, A switch 11, fixed Value resistor 12, B power supply 13, B switch 14, single-chip processor 15, wireless transmitting module 16, wireless receiving module 17, computer 18, tetrafluoroethylene protection box 19

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as Figure 1 to Figure 2 A TBM hob wear online real-time monitoring device is shown, comprising a tool seat 2, a hob 1 located on the tool seat 2, a data acquisition module and a data processing module, and the data acquisition module includes a permanent magnet 6, a magneto-sensitive Z The element 5 and the data collector, a detachably connected sensor base 3 is provided in the position facing the hob 1 in the knife seat 2, and a s...

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Abstract

The present invention discloses a TBM hobbing cutter wear online real-time monitoring device and a monitoring method. The device comprises a cutter seat, a hobbing cutter arranged on the cutter seat, a data collection module and a computer. The data collection module comprises a magnetic-sensing Z element and a permanent magnet arranged in the cutter seat and also comprises a fixed value resistor and a single chip microcomputer processor. A data collection loop is formed by the magnetic-sensing Z element, the fixed value resistor and the single chip microcomputer processor. When the magnetic field of the permanent magnet is changed due to hobbing cutter wear, the resistance change of the magnetic-sensing Z element is caused, and two end voltages of the fixed value resistor are changed too. The single chip microcomputer processor measures the two end voltages of the fixed value resistor and sends the voltages to the computer through a wireless transmitting module, and the computer calculates a hobbing cutter wear amount according to the corresponding relation formular of voltage and wear. According to the device and the method, the monitoring of hobbing cutter wear can be realized, the precision is high, a monitoring scale is large, the vibration interference resistance and waterproof abilities are strong, and the device can be conveniently disassembled and has strong application performance.

Description

technical field [0001] The invention belongs to the field of underground engineering and tunnel TBM excavation construction, relates to functional material combinations and the application of sensors, in particular to an online real-time monitoring device and monitoring method for TBM hob wear. Background technique [0002] At present, TBM has been widely used in the construction of underground projects such as tunnels and diversion tunnels. Due to the hard rock and the heterogeneity of the stratum, the hob is easily damaged by wear and tear during TBM excavation. According to statistics, the use consumption caused by tool wear and damage accounts for about 30% of the TBM machine price, and the time consumption caused by tool inspection and tool replacement accounts for about 1 / 3 of the TBM tunneling time. It is generally believed that when the hob wear amount reaches 20mm, it will affect the normal excavation efficiency. The damage of a single hob will cause partial wear ...

Claims

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Application Information

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IPC IPC(8): G01B7/00
CPCG01B7/00
Inventor 刘泉声张建明张晓平黄兴张晓波徐晓瑜
Owner WUHAN UNIV
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