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Method for monitoring hob state of TBM

A hob, state technology, used in measuring devices, testing wear resistance, instruments, etc., can solve the problem that the TBM hob cannot continue to work normally

Active Publication Date: 2018-09-14
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no monitoring method at home and abroad that uses the geometric axis method in the inventive method of this patent to monitor the sudden damage of the TBM hob during the working process so that it cannot continue to work normally.

Method used

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  • Method for monitoring hob state of TBM
  • Method for monitoring hob state of TBM
  • Method for monitoring hob state of TBM

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] combine Figure 1 to Figure 4 , the present invention is a kind of TBM hob condition monitoring method, comprises the following steps:

[0032] Step 1: Select n high-precision position sensors, and select the position sensor with the recommended value n=11, as shown in the attached picture " figure 1 ", arrange the selected position sensor in the direction parallel to the installation axis of the TBM hob, the distance from the installation axis of the TBM hob is L, and symmetrically distribute on the shaft section passing half of the width of the TBM hob, The numbers are i=1~n (recommended value is n=11).

[0033] Step 2: Set the coordinate system as shown in the attached picture " figure 1 ", establish the xoy coordinate system on the plane where the two straight lines where the position sensor is located and the installati...

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Abstract

The invention provides a method for monitoring the hob state of a TBM, and aims to provide a method for monitoring the hob state of a TBM. The method comprises determining the geometric axis of a wornand damaged TBM hob by a high-precision position sensor and an established corresponding coordinate system; monitoring the fluctuation of the circumferential force, the axial force and the radial force of a bearing during the working process of the TBM hob by a strain gauge and an acceleration sensor; and in combination with the geometrical axis and the fluctuation of the force, accurately determining whether the TBM hob can continue operating normally.

Description

technical field [0001] The invention relates to a method for monitoring the state of a TBM hob, which belongs to the technical field of on-line measurement detection and life prediction of the hob in TBM tunneling construction. 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. Its working environment is extremely harsh, manual maintenance is difficult, and it is easy to be damaged suddenly during the work process and cause it to fail to work normally. Therefore, it is necessary to monitor and judge whether the working TBM hob can continue to work normally. At present, there is no monitoring method at home and abroad that uses the geometric axis method in the inventive meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/00G01N3/56G01D21/02
CPCG01B21/00G01D21/02G01N3/56
Inventor 张忠林常盛周辉朱勇吴志强付彬李惠
Owner HARBIN ENG UNIV
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