Arrangement method of tools on composite cutterhead of shield tunneling machine

An arrangement method and technology of composite cutters, which are applied in earth-moving drilling, mining equipment, tunnels, etc., can solve problems such as engineering losses, and achieve the effect of reducing the number of cutter changes

Active Publication Date: 2017-02-15
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of tool change environment brings great difficulty to the tool change. A little carelessness will cause corresponding accidents and cause unnecessary losses to the project.

Method used

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  • Arrangement method of tools on composite cutterhead of shield tunneling machine
  • Arrangement method of tools on composite cutterhead of shield tunneling machine
  • Arrangement method of tools on composite cutterhead of shield tunneling machine

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Comparison scheme
Effect test

Embodiment Construction

[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments.

[0025] A method for arranging cutters of a shield machine composite cutterhead according to the present invention, the composite cutterhead adopts a panel type cutterhead, and the cutter includes n i put disc hob and n j A cutter with a disc-shaped hob in the center of the cutter head, and a mixed configuration of cutters and disc-shaped hobs on the periphery;

[0026] the n i put disc hob and n j When the cutter is at the same excavation distance, it reaches the limit wear at the same time;

[0027] the n i Distribute the disc-shaped hobs on multiple excavation trajectories, and the number of disc-shaped hobs on the same excavation track is n 1 put, and n 1 >1, the wear coefficient K of each disc hob on the excavation track n1 for

[0028]

[0029] where K 1 is the wear coefficient of the disc hob;

[0030] Since the l...

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PUM

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Abstract

The invention discloses an arrangement method of tools on a composite cutterhead of a shield tunneling machine. The composite cutterhead is a panel type cutterhead, and the arrangement method includes the arrangement method of cutters and hobs. The service lives of the cutters and the hobs are calculated equivalently through a formula, the mounting diameters of the cutters and the hobs are adjusted, and the service lives of the cutters and the service lives of the hobs are made to be the same by selecting different materials. The method for calculating the service lives of the tools of the cutterhead of the shield tunneling machine is designed, the abrasion degrees of the tools corresponding to the tunneling distances are calculated, and the tunneling distances of the tools within the service lives are further estimated; the service lives of the hobs and the service lives of the cutters are compared, and are made to be close by changing mounting diameters and increasing or decreasing the number of the cutters and the number of the hobs; and when the tools need to be replaced, the cutters and the hobs are replaced uniformly, the tool replacing frequency is reduced, safety and reliability are achieved, and the labor hour of the shield tunneling machine is guaranteed to a certain extent.

Description

technical field [0001] The invention belongs to the field of shield machine cutter head design, and in particular relates to a method for arranging cutters of a shield machine compound cutter head. Background technique [0002] With the prosperity of transportation and the construction of various large-scale projects such as tunnels and subways, the demand for shield machines is increasing, and their performance requirements are getting higher and higher, especially for the construction of composite strata. requirements are extremely strict. [0003] The selection of shield machine cutterhead cutters is determined according to different geological conditions. For composite strata, the arrangement of cutters should meet the tunneling needs of different strata such as soft land and sand, sand and pebble strata, and rock strata. Tunneling in complex ground is complex and the cutting tools must be changed. [0004] The replacement of the tool needs to fully consider the way of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08
CPCE21D9/08
Inventor 王乾廷谢万其陈鼎宁王火生陈文哲李晨宇
Owner FUJIAN UNIV OF TECH
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