design method for vibration damping of a TBM cutter head

A design method and technology of cutter head, applied in the direction of design optimization/simulation, calculation, mining equipment, etc., can solve the problem of strong cutter head and vibration, and achieve the effect of reducing damage, reducing cost, and enriching vibration reduction methods.

Active Publication Date: 2019-03-26
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is based on solving the problem of strong vibration of the cutter head during the excavation process of the full-face tunnel boring machine

Method used

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  • design method for vibration damping of a TBM cutter head
  • design method for vibration damping of a TBM cutter head
  • design method for vibration damping of a TBM cutter head

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Embodiment Construction

[0020] The specific implementation manner of the present invention will be described in detail below in conjunction with the drawings and technical solutions of the present invention.

[0021] 1. Divide the TBM cutter head into different areas and number them.

[0022] Take the center of the cutterhead as the center, make a circle with the maximum distance between the center hob and the center of the cutterhead, and the minimum distance between the side hob and the center of the cutterhead as the radius, and divide the cutterhead into three areas in the radial direction. From the inside to the outside are the center hob area 3-1, the positive hob area 3-2 and the side hob area 3-3. Take the horizontal line passing through the center of the cutter head as the first thin plate, and take the first thin plate as the reference, divide the cutter head into several areas in the circumferential direction according to a certain angle value (this model takes 30° as an example), and divi...

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Abstract

The invention provides a design method for vibration damping of a TBM cutter head, belonging to the vibration damping design field of a full-face tunnel boring machine. TBM crushes rock in extremely complex geological environment, under long-term bad working conditions, it frequently bears impact load and vibrates violently. Aimed at the problem of violent vibration of TBM cutter caused by the strong interaction between hob and rock in the process of rock breaking of TBM, this paper tries to reduce the vibration near hob from the point of view of replacing the material of parts and components.The material of wedge block connected with hob is replaced by damping alloy, and the vibration is reduced by the internal friction of damping alloy. In addition, through the simulation analysis of different structure cutter disks under different working conditions, the area with severe vibration on the cutter disks is found, and the material of hob connecting wedge block in this area is replacedby damping alloy, so as to reduce the cost of vibration damping, so as to achieve the purpose of replacing part of hob connecting wedge block material with damping alloy to damp vibration.

Description

technical field [0001] The invention belongs to the technical field of full-section tunnel boring machine design. On the basis of the hob-knife holder connection structure of the traditional full-section tunnel boring machine, a design is made to replace part of the hob connecting wedge-shaped block material with a damping alloy. TBM cutterhead vibration reduction solution. Background technique [0002] In recent years, with the rapid development of the economy, the advancement of science and technology, and the rapid growth of the population has led to the increasingly scarce land resources, countries around the world have gradually begun to strengthen the development of underground space. As a large-scale high-end equipment in the field of tunnel construction, the full-face tunnel boring machine (TBM) is more and more widely used. At present, full-face tunnel boring machines are widely used in fields such as water conservancy, electric power, railways, coal mines, transpo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50E21D9/087
CPCE21D9/087G06F30/17G06F30/20
Inventor 霍军周季文博徐兆辉孟智超
Owner DALIAN UNIV OF TECH
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