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Tunneling machine and overbreak knife thereof

A technology of super excavator and roadheader, which is applied in mining equipment, earthwork drilling, tunnels, etc., can solve the problems of low construction efficiency, affecting construction progress, and high operation risk, so as to improve construction safety, reduce construction costs, The effect of improving replacement efficiency

Pending Publication Date: 2018-11-16
CHINA RAILWAY CONSTR HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of operation requires the cooperation of various types of work such as manual excavation and welding in the hole. The operation process is cumbersome and dangerous, and the construction efficiency is low, which seriously affects the construction progress.

Method used

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  • Tunneling machine and overbreak knife thereof
  • Tunneling machine and overbreak knife thereof
  • Tunneling machine and overbreak knife thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] The core of the present invention is to provide a super digging cutter for a roadheader. The side of the cutter head is provided with a mounting port, and each component can be disassembled and replaced through the mounting port, which not only satisfies the function of super digging, but also realizes safety and convenience in a limited and harsh environment. replace. Another core of the present invention is to provide a boring machine including the above-mentioned super digging cutter.

[0025] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Please refer to Figure 1 to Figure 5 , figure 1 It is a schematic front view of a specific embodiment of the super digging knife provided by the present invention; figure 2 A cross-sectional view of a specific embodiment of the ...

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Abstract

The invention discloses an overbreak knife of a tunneling machine. The overbreak knife of the tunneling machine includes a hollow cutterhead and a driver, and the driver is installed in the cutterhead. A base plate is arranged at one end of the cutterhead, and a guide rail sleeve is coaxially installed at the other end of the cutter, wherein both ends of the guide rail sleeve are open. The base plate is detachably connected to one end of the driver, and a knife rod is detachably connected to the other end of the driver, wherein the knife rod is matched with the guide rail sleeve. The knife rodstretches into the guide rail sleeve and can extend and retract in the extension direction of the guide rail sleeve under the drive of the driver. A cutting tool is detachably installed on the kniferod, and an installation opening is arranged on the side surface of the cutterhead for the driver, the knife rod and the cutting tool in and out. The replacement of the overbreak knife can be quicklyrealized, the replacement efficiency of the overbreak knife is improved, the construction cost is reduced, and the construction safety is improved. The invention further discloses a tunneling machineincluding the overbreak knife.

Description

technical field [0001] The invention relates to the field of excavation equipment, in particular to a super excavation knife of an excavation machine. In addition, the present invention also relates to a boring machine comprising the above-mentioned super digging cutter. Background technique [0002] The roadheader is the main tool used in today's underground tunnel engineering, and has been widely used in infrastructure projects such as urban subways, water conservancy and hydropower, railways, and highways. Usually, the roadheader needs to use the over-excavation cutter to radially expand the tunnel when turning, correcting the deviation or before replacing the outermost hob. It can be seen that the super digging knife is one of the important tools equipped with the compound cutter head. Once the over-excavation knife is severely worn or damaged, it will have a great impact on the expansion capacity and construction efficiency of the roadheader. [0003] When replacing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10
CPCE21D9/10
Inventor 刘飞香程永亮暨智勇阳旭柯威邓汝群罗丹
Owner CHINA RAILWAY CONSTR HEAVY IND
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