A hard rock tunnel boring machine and its cutter head

A technology for tunneling and machine tooling, which is applied in tunnels, mining equipment, and earth-moving drilling, etc., can solve the problems of complex cutter head structure, increased maintenance cost, and increased difficulty in cutter head maintenance.

Active Publication Date: 2021-09-10
CHINA RAILWAY CONSTR HEAVY IND
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] However, in order to meet the large cutting area of ​​the cutter head, the existing cutter head has multiple microwave emission ports, and each microwave emission port is correspondingly equipped with a high-energy thermal beam assembly. On the other hand, too many high-energy thermal beam components complicate the structure of the cutter head, making it more difficult to overhaul the cutter head, resulting in higher maintenance costs

Method used

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  • A hard rock tunnel boring machine and its cutter head
  • A hard rock tunnel boring machine and its cutter head
  • A hard rock tunnel boring machine and its cutter head

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] 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.

[0048] Please refer to Figure 1 to Figure 3 , figure 1 A cross-sectional structure diagram of a hard rock tunnel boring machine cutter head provided by a specific embodiment of the present invention; figure 2 fo...

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Abstract

The invention discloses a hard rock tunnel boring machine cutterhead, which comprises a cutterhead body provided with a plurality of firing holes, a set of high-energy thermal beam components and a clamping component. When the hardness of the rock formation is high, the clamping component drives the high-energy thermal beam component to insert into any firing hole, and the high-energy thermal beam component heats the rock formation through the firing hole, reducing the point load strength and tensile strength of the rock formation, thereby reducing the cutterhead body. Rock breaking difficulty. Due to the arrangement of the clamping components, a set of high-energy thermal beam components can be selectively inserted into all the emission holes, avoiding adding multiple sets of high-energy thermal beam components to the cutter head body, and the structure of the cutter head body is simplified. The high-energy thermal beam assembly is located on the side of the cutter body away from the rock formation to prevent the high-energy thermal beam assembly from being scratched by the rock mass, prolong the service life of the high-energy thermal beam assembly, and thus help reduce costs. The invention also discloses a hard rock tunnel boring machine comprising the hard rock tunnel boring machine cutter head.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a hard rock tunnel boring machine cutter head. The present invention also relates to a hard rock tunnel boring machine comprising the above-mentioned hard rock tunnel boring only cutter head. Background technique [0002] Generally, the construction of infrastructure such as the opening of tunnels through mountains and the construction of urban subways are inseparable from tunnel boring machines, especially hard rock tunnel boring machines suitable for excavating hard ground. As a key component of the hard rock tunnel boring machine, the cutterhead directly affects the efficiency of the tunnel boring machine and the stress state of the machine body. Therefore, it is particularly necessary to optimize the structure of the hard rock tunnel boring machine cutterhead. [0003] In order to prolong the service life of the hard rock tunnel boring machine cutter head, the ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/087E21D9/06
CPCE21D9/087E21D9/0642
Inventor 刘飞香廖金军李胜祝爽蒋海华易达云徐震陈望伍容
Owner CHINA RAILWAY CONSTR HEAVY IND
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