Roadheader and construction method thereof

A technology of roadheader and propulsion mechanism, which is applied in the direction of earthwork drilling, mining equipment, tunnels, etc. It can solve the problems of low excavation efficiency in small turns, achieve reasonable equipment layout, improve tunneling efficiency, and improve the construction environment.

Inactive Publication Date: 2020-08-11
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a roadheader and a construction method, which solves the problem of low excavation efficiency in the small turn of the roadheader in the prior art

Method used

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  • Roadheader and construction method thereof
  • Roadheader and construction method thereof
  • Roadheader and construction method thereof

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Embodiment 3

[0036] Embodiment 3, the construction method of the boring machine described in embodiment 2, steps are as follows:

[0037] S1: When the roadheader is excavating: first, the propulsion cylinder 4 is in the retracted state, and the shoe mechanism 6 is braced against the cave wall at high pressure, relying on the friction between the right shoe 601 and the left shoe 603 and the wall, to provide a driving force for the excavation. The machine provides the propulsion support reaction force during excavation; then the upper front shield 201 is braced tightly on the cave wall at low pressure to reduce the vibration of the host machine generated during the excavation process; the drive system 3 works to drive the cutter head 1 to rotate; then, the propulsion cylinder 4 stretches out at high pressure , to push the split front shield 2 and the cutter head 1 to dig forward; the rock cut by the cutter head 1 is transported to the tail of the boring machine by the belt conveyor 7, and the...

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Abstract

The invention discloses a roadheader and a construction method thereof. The problem of low excavation efficiency of the roadheader in small turns in the prior art is solved. The roadheader main machine comprises a driving system, a split front shield and a support shield. A propulsion mechanism with a direction adjustment function is arranged between the split front shield and the support shield.The propulsion mechanism is a propulsion cylinder. The driving system is arranged in the split front shield. The front part of the drive system is provided with a cutter head, and the rear part of thedriving system or the split front shield is connected with the support shield through the propulsion cylinder. The support shield is provided with a jacking shoe mechanism. Compared with an existingfull-section roadheader, the roadheader can be used for tunnel construction with an ultra-small turning radius. The whole machine structure is simple, equipment arrangement is reasonable, and adaptability of the full-section roadheader is enhanced.

Description

technical field [0001] The invention relates to the technical field of roadheaders, in particular to a roadheader and a construction method. Background technique [0002] Full-face boring machine (TBM) is a large-scale tunnel boring equipment integrating mechanical, electronic, hydraulic, laser and other technologies. It has the advantages of economy, safety and environmental protection in tunnel construction. At present, full-face boring machine has been widely used in Construction of tunnels in traffic engineering, water conservancy engineering, and civil air defense engineering. Due to the large equipment and insufficient turning ability of the traditional full-face tunnel boring machine, it is difficult to promote it in tunnel projects with short distances and small turning radius such as mines and energy storage power stations. At present, the drilling and blasting method is the main method for tunnel excavation in mines and energy storage power stations, which has a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/087E21D9/093E21D9/12
CPCE21D9/087E21D9/12E21D9/093
Inventor 谭顺辉陈宝宗贾连辉贺飞宁向可崔利卫陈威明潘守辰张喜冬陈卓
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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