TBM hobbing cutter stress online real-time monitoring apparatus and monitoring method

A real-time monitoring, hob technology, applied in measuring devices, force/torque/work measuring instruments, instruments, etc., to solve problems such as unequal forces

Active Publication Date: 2017-02-01
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current monitoring method for hob force is mainly to obtain the force of a single hob by dividing the total thrust of the cutterhead by the number of hobs, but this method obtains the average force, but in fact the unevenness of the rock mass Due to the qualitative characteristics, the force on each hob is not equal

Method used

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  • TBM hobbing cutter stress online real-time monitoring apparatus and monitoring method
  • TBM hobbing cutter stress online real-time monitoring apparatus and monitoring method
  • TBM hobbing cutter stress online real-time monitoring apparatus and monitoring method

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

[0035]The online real-time monitoring device for TBM hob force shown in the figure includes support pad 2, upper pressing block 3, lower pressing block 4, strain gauge 5, strain gauge 6, wireless transmitting module 7, wireless receiving module 8 And monitoring computer 9, described support cushion block 2 is fixed on the knife case 11 by small bolt 10, and upper pressing block 3 is fixed on the knife box 11 by large bolt 12, and support cushion block 2 is provided with two, is used for supporting At both ends of the cutter shaft 1, the upper pressing block 3 is used to compress the cutter shaft 1 so that no displacement occurs between the cutter shaft 1 and the support pad 2, and the strain gauge 5 is installed in the support pad 2 to obtain the support pad Block strain data, strain gauge 5 is connected with strain gauge 6 by wire, and wir...

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Abstract

The invention discloses a TBM hobbing cutter stress online real-time monitoring apparatus and monitoring method. The apparatus comprises a support cushion block, an upper compaction block, a strain gauge, a strain instrument, a wireless emission module, a wireless receiving module and a monitoring computer. According to the monitoring method, by use of strain data of the support cushion block, obtained by the apparatus, through the monitoring computer, by use of a hobbing cutter system vibration differential equation established through a hobbing cutter vertical and swing-direction coupling vibration mechanical model, stress of a hobbing cutter during work is calculated, such that work personnel can monitor the stress condition of the hobbing cutter in real time and adjust driving parameters based thereon, damage is reduced, vibration is mitigated, and the driving efficiency is improved.

Description

technical field [0001] The invention relates to equipment detection technology in the industry of full-section hard rock roadheaders, in particular to an online real-time monitoring device and a monitoring method for the stress of a TBM hob. [0002] technical background [0003] Full-face hard rock roadheaders are mainly used for excavating tunnels in rock formations. Dozens of disc-shaped hobs are arranged on the cutter head that is in direct contact with the rock. Under the thrust of the oil cylinder, the disc-shaped hob exerts a load on the rock, and at the same time rolls with the rotation of the cutter head. Rolling rock breaks the rock into pieces, and the hob is exposed to vertical forces, lateral forces and rolling resistance in the process. When the force on the hob is too large, its structural parts will be damaged and unable to work, such as broken bearings, eccentric wear, slipping, and cracking of the knife ring. The knife fell off. Therefore, real-time monit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
CPCG01L5/0061
Inventor 刘泉声张晓波张晓平黄兴张建明
Owner WUHAN UNIV
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