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Rectangle hard rock shield cutter head

A cutter head, hard rock technology, applied in mining equipment, earth-moving, tunnels, etc., can solve the problems of cumbersome preparation work, low work efficiency, large impact force, etc., and achieves convenient operation, simple structure, and low impact and vibration. Effect

Pending Publication Date: 2018-05-22
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the above-mentioned background technology, the present invention proposes a rectangular hard rock shield cutting cutter head, which solves the problem that the cutter head used in rectangular tunnel construction in the prior art has complex structure, cumbersome preparation work, large impact force, and difficult work. Low efficiency and other issues

Method used

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  • Rectangle hard rock shield cutter head
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  • Rectangle hard rock shield cutter head

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Embodiment 2

[0018] Embodiment 2, a rectangular hard rock shield cutting cutter head, the cutter 4 is connected with the drum cutter head 2 through the cutter seat 10, the cutter 4 is arranged on the cutter seat 10 in a strip shape, and the cutter uses a screw Fastened on the cutter seat, the cutter seat 10 is arranged on the drum cutter head 2 in the axial direction, and the cutter 4 is arranged in parallel with the drum cutter head 2 for peeling off floating rocks and taking away the peeled rocks. The height of the cutter 4 protruding from the drum cutter head 2 is lower than the height of the side hob 6 and the front hob 7 extending out of the drum cutter head 2, and the height of the cutter 4 extending out of the drum cutter head 2 is higher than the extension of the telescopic cutter 5 Out of the height of the drum cutter head 2, the hob distance of the side hob and the hob distance of the front hob are relatively small, which can effectively protect the cutter head from the impact of ...

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Abstract

The invention discloses a rectangular hard rock shield cutter head. The cutter head solves the problems that in the prior art, cutter heads applied to rectangular tunnel construction are complex in structure, complicated in preparation work, large in impact force and the like. According to the technical scheme, the rectangular hard rock shield cutter head comprises a supporting frame, a roller cutter head body and a cutter set, the roller cutter head body is connected with a deceleration device mounted on the supporting frame, and the cutter set is mounted on the roller wall of the roller cutter head body; the cutter set comprises a hobbing cutter, a cutter and retractable cutters, the hobbing cutter is circumferentially arranged on the roller wall of the roller cutter head body, the cutter is radially arranged on the roller wall of the roller cutter head body, and the retractable cutters are symmetrically arranged on the roller wall of the roller cutter head body. According to the rectangular hard rock shield cutter head, the propulsion force and the cutting rotation power are relatively low, the fluctuation angle of the cutting force is small, and impact and vibration on equipment are weak. By adjusting the axial length of the cutting equipment and the supporting mode of a bracket, the cutter head can adapt to tunneling of partial sections and a whole section.

Description

technical field [0001] The invention relates to the technical field of rectangular tunnel construction equipment, in particular to a rectangular hard rock shield cutting cutter head. Background technique [0002] Compared with traditional tunnels with circular sections, rectangular tunnels can save a lot of underground space. At present, with the increasing number of urban underground space development, the application of rectangular sections is increasing. However, my country has a large population, densely populated cities, and limited ground and underground space. Rectangular section tunnels will be a good choice. During the excavation process, for medium-hard rock formations, the cantilever roadheader or rectangular shield machine is currently used for construction. The cutting device of the shield machine adopts a composite cutter head, which has a complex structure and cumbersome preparation work; the cutting mechanism of the cantilever roadheader mostly uses The cut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/08E21D9/087
CPCE21D9/08E21D9/0874E21D9/0879
Inventor 宋丹高立君贾连辉邢泊王锴江帅
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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