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Tunnel boring machine cutter fastening state real-time monitoring method

A real-time monitoring and roadheader technology, applied in measuring devices, earthwork drilling, force/torque/work measuring instruments, etc., can solve problems affecting construction progress and efficiency, and achieve the effect of solving the problem of real-time monitoring of tightening conditions

Active Publication Date: 2020-12-15
CENT SOUTH UNIV +2
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  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are few methods for real-time monitoring of the fastening state of the cutting tool of the roadheader at home and abroad. The method of stopping the inspection is generally used to check the fastening state of the cutting tool connection. This method seriously affects the construction progress and efficiency.

Method used

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  • Tunnel boring machine cutter fastening state real-time monitoring method
  • Tunnel boring machine cutter fastening state real-time monitoring method
  • Tunnel boring machine cutter fastening state real-time monitoring method

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Embodiment Construction

[0032] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0033] The invention provides a method for real-time monitoring of the fastening state of the cutting tool of the roadheader, aiming at the problem that the existing shutdown inspection tool fastening state affects the construction progress and efficiency.

[0034] Such as figure 1 As shown, the embodiment of the present invention provides a method for real-time monitoring of the fastening state of the cutting tool of the roadheader, including: step 1, installing the strain sensor on the connecting bolt of the cutting tool, and monitoring the pre-tightening process of the cutting tool and the tension during the running process through the strain sensor. Bolt strain; step 2, the bolt strain monitored by the strain sensor is transmitted and stored in the c...

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Abstract

The invention provides a tunnel boring machine cutter fastening state real-time monitoring method which comprises the following steps: 1, installing a strain sensor on a cutter connecting bolt, and monitoring the bolt strain in a cutter pre-tightening process and an operation process through the strain sensor; 2, transmitting the bolt strain monitored by the strain sensor to a computer and storingthe same in the computer; and 3, monitoring the tool fastening state in real time by the computer through a bolt axial tension calculation model and a bolt fastening state determination model. According to the method, the fastening state determination model is provided according to the strain and the axial tension in the pre-tightening process and the operation process, and finally the the axialtension and the connection state measured in real time is output. The axial tension change of the connecting bolt can be evaluated accurately, quantitatively and scientifically, and the problem of real-time monitoring of the tool fastening state in the tunnel boring machine operation process is solved.

Description

technical field [0001] The invention relates to the technical field of tunnel boring machines, in particular to a method for real-time monitoring of the fastening state of cutting tools of the boring machine. Background technique [0002] With the continuous deepening of modernization, my country's urbanization process has entered a rapid development mode, and the utilization and development of urban underground space is becoming the top priority of modernization and sustainable development; among them, tunnel boring machines are widely used in subway tunnel construction, and The cutter head is an important excavation part of the roadheader. During the operation of the roadheader, whether the tool connection is fastened has a great influence on the work and efficiency of the roadheader. During the operation of the roadheader, a large variable load will be generated. Since the cutter and the cutter holder are fastened and connected by bolts, the severe vibration will have a gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/20E21D9/10G01B21/32G01L5/00
CPCG06F30/17G06F30/20E21D9/10G01B21/32G01L5/00G06F2119/14
Inventor 夏毅敏邓志强吴遁薛静易杰李涛李永朝柯杰何山
Owner CENT SOUTH UNIV
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