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Variable thickness full section rock heading machine cutterhead

A full-section, variable-thickness technology, used in mining equipment, earth-moving drilling, tunnels, etc., can solve the problem of poor uniformity of cutter head deformation, and achieve the effects of improving utilization, reducing vibration and uniform force

Active Publication Date: 2018-04-13
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a variable-thickness full-section rock boring machine cutter head to solve the technical problem of poor deformation uniformity of the cutter head existing in the prior art during the full-section rock heading machine tunneling operation

Method used

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  • Variable thickness full section rock heading machine cutterhead
  • Variable thickness full section rock heading machine cutterhead
  • Variable thickness full section rock heading machine cutterhead

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0067] The variable-thickness full-section rock boring machine cutter provided in this embodiment is applied to the full-section rock boring machine.

[0068] In the prior art, dozens or even hundreds of disc-shaped hobs are generally arranged on the TBM cutter head (also known as the full-face rock boring machine cutter head), and the thrust acting on each disc-shaped hob can be as high as 30 tons Left and right, wherein, the thrust acting on each disc-shaped hob is, for example, the force perpendicular to the rock-breaking surface and the tunnel surface. In order to avoid the overturning moment of the cutter head during operation, the disc-shaped hobs are generally evenly arranged on the cutter head, that is, the force on the cutter head can be considered to be axisymmetric.

[0069] figure 1 Shown is the TBM cutterhead unit and the forces acting on it, figure 2 shown as figure 1 The unit block of the TBM cutter head unit and the force acting on it, wherein the radial fo...

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PUM

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Abstract

The invention relates to the technical field of a full section rock heading machine, in particular to a variable thickness full section rock heading machine cutterhead. The variable thickness full section rock heading machine cutterhead adopts edge supporting, when the center deflection of the cutterhead is 0, and t0 is obtained according to the relationship between the cutterhead center thicknesst0 and the thickness t1 of the cutterhead supported position; and t1 is determined by an existing determination method for the thickness of a cutterhead of a constant thickness full section rock heading machine or determined according to a cutterhead strength theory. The variable thickness full section rock heading machine cutterhead aims to solve the technical problem of poor deformation uniformity of the cutterhead when the full section rock heading machine carries out heading operation in the prior art.

Description

technical field [0001] The invention relates to the technical field of full-section rock boring machines, in particular to a variable-thickness full-section rock boring machine cutter head. Background technique [0002] Full-face rock tunnel boring machine (abbreviated as TBM) is a large-scale underground construction equipment integrating machinery, electricity and hydraulics with high technology intensity. It is mainly used for railways, highways, water conservancy and hydropower diversion tunnels, subways and underground engineering tunnels Excavation building construction. The full-face rock boring machine can alternately complete the excavation and stepping work, and can realize the continuous operation of excavation and ballasting, and deliver the excavated ballast to the belt conveyor through the head of the cutterhead, and transport it out of the tunnel. [0003] At present, cutterheads of equal thickness are used on full-face rock tunneling machines, and the front ...

Claims

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Application Information

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IPC IPC(8): E21D9/087
CPCE21D9/0879
Inventor 张照煌王磊高青风
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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