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A planetary wheel type profiling excavation device for tunnel construction with rectangular section

A technology of tunnel construction and rectangular section, applied in tunnels, mining equipment, earth-moving drilling, etc., can solve the problems of poor section adaptability, poor soil cutting effect, large excavation blind area, etc., to achieve good economy, good section The effect of adaptability and good soil cutting effect

Active Publication Date: 2019-05-24
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the technical problems of existing excavation devices such as large excavation blind area, poor soil cutting effect, complex structure, and poor cross-section adaptability, the present invention proposes a planetary wheel-type profiling excavation for tunnel construction with rectangular cross-section device

Method used

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  • A planetary wheel type profiling excavation device for tunnel construction with rectangular section
  • A planetary wheel type profiling excavation device for tunnel construction with rectangular section
  • A planetary wheel type profiling excavation device for tunnel construction with rectangular section

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0025] Such as Figure 1-5 As shown, a planetary wheel type profiling excavation device used for the construction of a rectangular section tunnel includes a cutter head 1, a planet wheel 4, a planet wheel shaft 3, a planet carrier 5, a large ring gear 6 and a shield body 2. The shape of the cutter head 1 is a drop shape, and the rear part of the cutter head 1 meshes with the planetary shaft 3. The cutter head 1 is connected to the front...

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Abstract

The invention provides a planet wheel type profiling excavation device for construction of a rectangular-cross-section tunnel which is used for solving the problems that an excavation bland area is large, a cutting effect of soil mass is poor, the structure is complex, the adaptability of the cross section is poor existing in an existing excavation device. The plant wheel type profiling excavationdevice comprises a cutter disc, a planet wheel, a planet wheel shaft, a planet carrier, a large gear ring and a shield body. The cutter disc is in a water-drop shape, and the rear portion of the cutter disc is engaged with the planet wheel shaft. The planet wheel shaft is connected with the planet carrier through a bearing, and the rear portion of the planet carrier is connected with an externaldriving device. The planet wheel is arranged on the planet wheel shaft, the planet wheel is arranged in the large gear ring, the planet wheel is engaged with the large gear ring, and the outer side ofthe large gear ring is fixed to the shield body. The planet wheel type profiling excavation device ensures full-section excavation, different excavation sections can be formed, excavation of rectangular-cross-section tunnels in various specifications can be achieved, and the good economical efficiency, adaptability and reliability are achieved. Meanwhile, the planet wheel type profiling excavation device has a good soil mass cutting effect and good cross section adaptability.

Description

Technical field [0001] The invention relates to the technical field of underground space construction, in particular to a planetary wheel type profiling excavation device used for the construction of a rectangular section tunnel. Background technique [0002] Rectangular roadheaders have high overall excavation space utilization, less excavation, and little interference to the surrounding environment. They are especially suitable for rectangular cross-section municipal projects such as street tunnels, subway entrances and exits, comprehensive pipe corridors, and underground parking lots. At present, the rectangular section excavation device has a central shaft type and an eccentric shaft type according to the form of the drive shaft, and according to the shape of the cutter head, there are circular, rectangular and single cutter disc profiling. However, this kind of excavation device has the problems of large excavation blind area, poor soil cutting effect, complex structure, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/087E21D9/00
CPCE21D9/03E21D9/0879
Inventor 蒋鹏鹏郑霄峰龚廷民范磊董艳萍谢瑞颖
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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