Device for online detection for stress of hobbing cutter of tunnel boring machine

A roadheader, full-section technology, applied in the direction of measuring force components, etc., can solve the problem of easy damage of the hob, achieve the effect of prolonging the service life and ensuring the driving efficiency

Active Publication Date: 2014-04-02
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result of this is that the hob is vulnerable to damage

Method used

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  • Device for online detection for stress of hobbing cutter of tunnel boring machine
  • Device for online detection for stress of hobbing cutter of tunnel boring machine
  • Device for online detection for stress of hobbing cutter of tunnel boring machine

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Embodiment Construction

[0023] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0024] see Figure 1 to Figure 10 , a plurality of hob devices 2 are installed on the cutter head 1 of the full-section hard geological roadheader. The hob blade 3 is in the shape of a flat disc, also called a cutter ring. The hob blade 3 is supported on the tool central axis 5 through a bearing 4 Above, the two ends of the central axis 5 of the tool are respectively provided with a shaft end supporting structure.

[0025] The present invention is a device for on-line detection of hob stress of a full-section hard geological roadheader, comprising a shaft end support structure of the tool central axis 5, a sensor for detecting hob stress, a signal amplifier, a transmitting antenna, a signal receiving device and Monitor computer.

[0026] Th...

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Abstract

The invention discloses a device for online detection for stress of a hobbing cutter of a tunnel boring machine. The device comprises a shaft end supporting structure of a cutter central shaft, a sensor for detecting the stress of the hobbing cutter, a signal amplifier, a transmitting antenna, a signal receiving device and a monitoring computer, wherein the shaft end supporting structure of the cutter central shaft comprises a shaft end structure of the cutter central shaft, a supporting wedge and a locking wedge, and the sensor is formed on the supporting wedge. The supporting wedge is used as an elastomer, the sensor for detecting the stress of the hobbing cutter is formed through pasting a resistance strain piece on the elastomer, and when the heading machine works, the sensor can be used for online detecting stress in three directions borne by a cutting edge of the hobbing cutter, so that the tunneling operation scheme can be adjusted according to the condition, the service life of the cutter is prolonged, and further good tunneling efficiency can be obtained. The device can also be used for identifying whether string wear occurs or not and timely grasping the working state of the hobbing cutter, and the tunneling efficiency can be ensured due to the fact that when the cutting edge is subjected to string wear, the cutter can be timely replaced.

Description

technical field [0001] The invention belongs to large-scale mechanical construction equipment, and in particular relates to a device for monitoring the force and wear of a hob used in a full-face hard rock tunneling machine. Background technique [0002] TBM is the English abbreviation of full-face hard geological tunnel boring machine, including hard rock tunnel boring machine and compound shield tunnel boring machine, etc. The former is mainly used for the construction of underground traffic projects such as tunnels and culverts in rock geological structures; the latter is mainly used for tunneling existing Earthy and rocky geology. The cutter head of the hard rock tunnel boring machine is equipped with a hob; the cutter head of the compound shield tunnel boring machine has both a scraper and a hob on the cutter head. For the convenience of description, the hard rock tunnel boring machine and the compound shield tunnel boring machine are collectively referred to as the tu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/16
Inventor 侯振德岳澄陈超亢一澜蔡宗熙
Owner TIANJIN UNIV
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