Balancing arrangement method on cutterhead for positive hobbing cutter and transition hobbing cutter

A layout method and transition rolling technology, applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problem of difficult determination of position parameters, and achieve the effects of improving reliability and operating life, improving operating environment, and reducing vibration and noise.

Inactive Publication Date: 2009-06-17
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims at the technical problem that the position parameters of the front knife and the transitional disc hob of the disc-shaped hob are not easy to determine on the cutter head, and provides a method for balanced arrangement of the front hob and the transitional hob on the cutter head. It is characterized in that it comprises the following steps:

Method used

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  • Balancing arrangement method on cutterhead for positive hobbing cutter and transition hobbing cutter
  • Balancing arrangement method on cutterhead for positive hobbing cutter and transition hobbing cutter
  • Balancing arrangement method on cutterhead for positive hobbing cutter and transition hobbing cutter

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Experimental program
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Effect test

Embodiment 1

[0037] The maximum cutter spacing S of the disc-shaped hob on the tunnel boring machine cutter head determined according to a specific operation object max =90mm, a total of 62 positive hobs and transitional disc hobs are installed on this cutter head, S 1 ~S 10 70mm, S 11 ~S 51 65mm, S 52 =63mm, S 53 =61mm, S 54 =62mm, S 55 =59mm, S 56 =57mm, S 57 =55mm, S 58 =52mm, S 59 =50mm, S 60 = 44mm, S 61 =39mm,S 62 =31mm, the installation radius of the outermost center knife is 462mm, then ρ i = 462 + Σ i = 1 i S i .

[0038] Take l=4, μ=π / 3, and establish the auxiliary equation: R = 462 + π 3 ( θ - k ...

Embodiment 2

[0040] set auxiliary equation R = R 0 + μ ( θ - k · π l ) Among μ=2π / 3, all the other parameters are identical with embodiment 1, and the arrangement of disc-shaped hob on the cutter head is as attached Figure 4 shown.

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Abstract

The invention belongs to the technical field of designing a cutterhead of a fullface tunneling machine (or a fullface rock ripper or a tunnel shield), in particular relates to a method for the balanced arrangement of a positive rolling cutter and a transition rolling cutter on the cutterhead. The method draws a spiral line by establishing an auxiliary equation, and installs disk-shaped rolling cutters on the preformed locus circular crossing points of the spiral line and each disk-shaped rolling cutter according to a certain order. The arrangement method of the invention can lower the overturning moment of the cutterhead of a tunneling machine by 70 percent and the lateral unbalanced force by 50 percent, thereby effectively reducing the vibration and noise generated during the working of the fullface tunneling machine, improving the operational environment of construction personnel and improving the working reliability and the operation service life of the fullface tunneling machine.

Description

technical field [0001] The invention belongs to the technical field of cutterhead design for full-section tunnel boring machines (full-section rock boring machines and shield tunneling machines), and in particular relates to a balanced arrangement method for positive hobs and transition hobs on the cutter head. Background technique [0002] Generally, tens or even hundreds of disc hobs (positive hobs and transition hobs) or cutting knives are arranged on the cutter head of a full-face tunnel boring machine. The arrangement of disc hobs on the cutter head should follow the mechanical principles It is: 1) The overturning moment generated by the action force of each tool on the cutter head is zero; 2) The resultant force of the component force of the force of all the tools on the cutter head on the coordinate plane parallel to the cutter head surface is zero. That is, formulas (1) and (2) need to be satisfied, and the above mechanical principles can be written as: [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/087E21D9/11
Inventor 张照煌乔永立孙飞王磊刘吉洋刘瑞华
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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