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Tunnel boring machine hob ring, hob and boring machine comprising hob

A technology of tunnel boring machine and cutter ring, which is applied in tunnels, mining equipment, earth-moving drilling, etc., can solve the problems of low rock-breaking efficiency, insufficient cracking efficiency, and rapid wear of cutter ring of tunnel boring machine.

Pending Publication Date: 2021-09-03
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the arrangement of the cemented carbide cutter teeth installed on the cutter ring of the traditional tunnel boring machine has problems such as insufficient cracking efficiency and insufficient crack development, and fails to give full play to the advantages of the cemented carbide cutter teeth, which makes the cutter ring wear faster , which lowers the rock-breaking efficiency produced by the tunnel boring machine

Method used

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  • Tunnel boring machine hob ring, hob and boring machine comprising hob
  • Tunnel boring machine hob ring, hob and boring machine comprising hob
  • Tunnel boring machine hob ring, hob and boring machine comprising hob

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Embodiment Construction

[0021] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0022] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the invention clearly states otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, their Indicate the presence of features, steps, operations, means, components and / or combinations thereof;

[0023] 2. As described in the background technology section, the hob cutter ring design of the tunnel...

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PUM

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Abstract

The invention provides a tunnel boring machine hob ring, a hob and a boring machine comprising the hob. The hob ring is installed on the tunnel boring machine hob, cylindrical hard alloy hob teeth are installed on the hob ring on the outermost circumferential surface of the tunnel boring machine hob, and the cylindrical hard alloy hob teeth are installed on an installation groove formed in the hob ring and fixed through welding; the cylindrical hard alloy hob teeth installed in the installation groove are higher than the surface of the hob ring; and the cylindrical hard alloy hob teeth are distributed on the hob ring in the circumferential direction of the hob, the top ends of the cylindrical hard alloy hob teeth are rectangular edge strips, and the hard alloy hob teeth with the left-leaning rectangular edge strips and the hard alloy hob teeth with the right-leaning rectangular edge strips are alternately distributed.

Description

technical field [0001] The invention relates to the technical field of tunnel boring machines, in particular to a tunnel boring machine hob cutter ring, a hob including the cutter ring, and a roadheader including the hob. Background technique [0002] With the rapid development of the national economy in the 21st century, my country's urbanization process is accelerating, and the underground space development market is vast. Domestic urban construction requires a large number of tunnel boring machines. The working principle of the tunnel boring machine is to use the rotating hob to roll along the excavation surface and at the same time penetrate into the excavation surface under the action of pushing. These two movements will produce shearing and extrusion effects, thereby forming a tunnel section and achieving the effect of breaking rock. [0003] However, the arrangement of the cemented carbide cutter teeth installed on the cutter ring of the traditional tunnel boring mac...

Claims

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Application Information

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IPC IPC(8): E21D9/10
CPCE21D9/10E21D9/1006
Inventor 朱洪涛吕浩伟刘广源张锟黄传真刘盾姚鹏
Owner SHANDONG UNIV
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