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Hob-free hard rock tunneling machine for breaking rocks by utilizing laser and high-pressure blast jet flow

A hard rock roadheader and high-pressure air technology, applied in mining equipment, earthwork drilling, tunnels, etc., can solve problems such as low energy utilization rate and poor slag discharge effect, achieve light weight, save costs, and improve excavation efficiency Effect

Active Publication Date: 2021-01-08
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the above-mentioned background technology, the present invention proposes a hobless hard rock tunneling machine that uses laser and high-pressure wind jet to break rock, which solves the problem of low energy utilization rate and rock breaking and slag discharge when the tunneling machine uses laser to break rock alone. Poor Technical Issues

Method used

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  • Hob-free hard rock tunneling machine for breaking rocks by utilizing laser and high-pressure blast jet flow
  • Hob-free hard rock tunneling machine for breaking rocks by utilizing laser and high-pressure blast jet flow
  • Hob-free hard rock tunneling machine for breaking rocks by utilizing laser and high-pressure blast jet flow

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Effect test

Embodiment 1

[0021] Embodiment 1, a kind of hard rock tunneling machine without hob that utilizes laser and high-pressure air jet to break rock, such as figure 1 As shown, the shield body 8 is included, and the shield body 8 is provided with a central main driving unit 2 connected to the hob-free cutterhead 1, and the central main driving unit 2 drives the non-hob cutterhead 1 to rotate in a circumferential direction. A segment assembly machine 10 and a screw conveyor 12 are arranged inside the shield body 8 , and the feeding end of the screw conveyor 12 is located at the rear side adjacent to the hobless cutter head 1 . Because there is no hob, not only the cost of the hob is saved up to several million, but also because there is no hob and other tools, the weight of the front panel of the roadheader is reduced by 2 / 3, so the main drive only needs to use 1 / 3 of the previous configuration. , which saves at least millions of dollars.

[0022] Since the hobless cutterhead 1 is driven by the...

Embodiment 2

[0026]Embodiment 2, a hobless hard rock tunneling machine using laser and high-pressure wind jet to break rock, the laser emitting end 32 of the laser transmitter 3 is directed perpendicular to the front tunneling surface, which can ensure the application efficiency of laser energy reach the highest.

[0027] Other structures of this embodiment are the same as those of Embodiment 1.

Embodiment 3

[0028] Embodiment 3, a kind of hard rock tunneling machine without hob that utilizes laser and high-pressure wind jet to break rock, such as image 3 As shown, the laser transmitter 3 is connected with an angle monitoring device 31 and an angle adjusting device, and the angle monitoring device 31 and the angle adjusting device are connected with the control center. The control center can monitor the direction of the laser emitting end 32 of the laser transmitter 3 in real time through the angle monitoring device 31, and correct the deviation by controlling the angle adjustment device after exceeding the error range, so as to achieve the highest rock-breaking efficiency and avoid burns to the equipment .

[0029] Other structures of this embodiment are the same as Embodiment 1 or 2.

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Abstract

The invention discloses a hob-free hard rock tunneling machine for breaking rocks by utilizing laser and high-pressure blast jet flow. The hob-free hard rock tunneling machine comprises a central maindriving unit connected with a hob-free cutterhead, a laser emitter is arranged on the hob-free cutterhead, a dust removal unit is arranged on the laser emitter, a high-pressure blast nozzle is arranged on the hob-free cutterhead, a high-pressure blast nozzle is connected with a high-pressure blast system through a high-pressure blast pipe, and the laser emitter and the high-pressure blast nozzleare both connected with a control center. A laser and high-pressure blast jet flow coupled rock breaking system is adopted, a conventional cutter rock breaking technology is thoroughly abandoned, theproblem that abnormal damage is extremely prone to occurring when a metal cutter of the tunneling machine cuts rocks is solved, and millions of the hob cost is saved; due to the fact that no cutter isarranged, the weight of a front panel of the tunneling machine is reduced by 2 / 3, a main drive only needs 1 / 3 of the original configuration, and at least millions of expenses are saved; and in addition, the excavation efficiency is improved, the excavation cost is reduced, and the machine can adapt to tunneling of various stratums.

Description

technical field [0001] The invention relates to the technical field of the fifth-generation tunnel boring machine, in particular to a hob-less hard rock boring machine which utilizes laser and high-pressure wind jet to break rock. Background technique [0002] At present, tunnel excavation for rock formations mainly relies on disc-shaped hobs to squeeze rocks to achieve the purpose of breaking rock mass. Yes, but in harder rock formations the hob method is poorly economical. Therefore, need subversive invention a kind of novel roadheader and rock-breaking work method. [0003] After retrieval, the existing Chinese utility model patent with an application date of 2018.12.29 and an application number of CN201822256047.0 discloses a roadheader that uses lasers to break rocks, including a main body of the roadheader, and a cutter head is installed on the main body of the roadheader. The above-mentioned cutter head is provided with a laser generating device. Although this util...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06E21D9/087
CPCE21D9/0642E21D9/087E21D9/1066E21D9/1073
Inventor 李建斌朱英龙伟漾万钦马靖源于庆增
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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