Tunneling machine using laser for rock breaking

A roadheader and rock-breaking technology, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve problems such as hob wear and replacement frequency, abnormal damage of metal tools, and reduced efficiency of shield tunneling, so as to reduce excavation costs, The effect of improving rock breaking efficiency, saving tool cost and risk of tool change

Inactive Publication Date: 2018-09-21
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, tunneling is aimed at rock formations, mainly relying on disc-shaped hobs to squeeze rocks to achieve the purpose of breaking rock mass. It mainly overcomes the compressive strength of rocks. For rock formations with general strength (within 100MPA), its rock-breaking efficiency It is acceptable, but with the increase of rock strength, the efficiency of hob crushing and breaking rock gradually decreases, and the abnormal wear and replacement frequency of hob increases, which leads to the decrease of shield tunneling efficiency and the increase of tunneling cost
At the same time, when excavating severely uneven ground such as soft top and hard bottom, traditional metal tools are prone to abnormal damage

Method used

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  • Tunneling machine using laser for rock breaking
  • Tunneling machine using laser for rock breaking
  • Tunneling machine using laser for rock breaking

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: as Figure 1-5 Said a kind of roadheader that utilizes laser to break rocks includes a roadheader host and a water and electricity output system 8 that matches with the body of the roadheader host. A cutter head system 3 is provided at the front of the roadheader host. 3, several laser generators 2 are uniformly arranged on the cutterhead 301, and the laser generators are arranged on the cutterhead 301, so that the movement track of the laser generators 2 covers the entire excavation surface, and the laser generators 2 follow the rotation of the cutterhead. This enables full-face excavation. The emitting end of the laser generating device 2 has an inclination angle with the face rock 1 at the excavation site, and the laser rays emitted from the emitting end of the laser generating device 2 act on the face rock 1. There is an inclination angle between the launch end and the excavation surface, so the formed laser ray is non-perpendicular to the excavation ...

Embodiment 2

[0027] Embodiment 2: A tunneling machine that utilizes laser to break rock, the cutter head 301 is conical, and the inside of the cutter head 301 is provided with a porous passage that matches the water cooler 202 and the laser generating device box 203, and the porous passage of the cutter head 301 An electric slip ring 402 is provided at the general entrance, and the electric slip ring 402 is connected with a transmission and distribution pipe 403 through a hydraulic rotary joint 401 . Other structures and working principles are the same as in Embodiment 1.

Embodiment 3

[0028] Embodiment 3: A tunneling machine using laser to break rock, the best angle for the laser emitter 201 to incline radially outward along the center of the cutterhead 301 is between 15° and 25°. Other structures and working principles are the same as in Embodiment 2.

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PUM

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Abstract

The invention discloses a tunneling machine using laser for rock breaking. The tunneling machine structurally comprises a tunneling machine host and a water and electricity output system matched withthe tunneling machine host, wherein a cutter head system is arranged at the front part of the tunneling machine host; a plurality of laser generators are uniformly arranged on a cutterhead of the cutterhead system along the movement track; the emitting ends of the laser generators form an inclined angle with the tunnel face rock in the digging position; the laser generators are connected with thewater and electricity output system through a conveying and distribution pipe of a water and electricity conveying and distribution system; the conveying and distribution pipe is a porous pipeline integrating a water pipe and an electric wire pipe; the middle part of the tunneling machine host is provided with a driving system for driving the cutterhead system; a slag discharging system matched with the cutterhead system is arranged inside the tunneling machine host; a step system is arranged on the tunneling machine host. A laser ray system is used for solving the problem that the abnormal damage can easily occur during the rock cutting by a metal cutter; the suspension cutting rock breaking is used, so that the digging efficiency is improved; the digging cost is reduced.

Description

technical field [0001] The invention relates to the field of tunnel boring machinery, in particular to a tunnel boring machine using laser to break rock. Background technique [0002] At present, tunneling is aimed at the rock formation, mainly relying on the disc-shaped hob to squeeze the rock to break the rock mass. It mainly overcomes the compressive strength of the rock, and its rock-breaking efficiency is aimed at the rock formation with general strength (within 100MPA). It is acceptable, but with the increase of rock strength, the efficiency of hob crushing and breaking rock gradually decreases, and the abnormal wear and replacement frequency of hob increases, which leads to the decrease of shield tunneling efficiency and the increase of tunneling cost. At the same time, when excavating severely uneven geology such as soft top and hard bottom, traditional metal tools are prone to abnormal damage. [0003] The principle of laser technology is to destroy rock mass by ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10
CPCE21D9/1006E21D9/1066E21D9/1073
Inventor 卓兴建李建斌张家年杨洋贾连辉欧阳凯
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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