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Heading machine and center hobbing cutter axial locking device thereof

A technology of axial locking and center cutter, which is applied in mining equipment, earthwork drilling, tunnels, etc., and can solve problems affecting the service life of center hob and cutter holder

Pending Publication Date: 2019-05-17
CHINA RAILWAY CONSTR HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a central hob axial locking device, which can solve the problem of affecting the service life of the central hob and the tool seat due to the axial serial movement of the central hob

Method used

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  • Heading machine and center hobbing cutter axial locking device thereof
  • Heading machine and center hobbing cutter axial locking device thereof
  • Heading machine and center hobbing cutter axial locking device thereof

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Embodiment Construction

[0024] 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.

[0025] The core of the present invention is to provide an axial locking device for the central hob, which can solve the problem of affecting the service life of the central hob and the tool seat due to the axial serial movement of the central hob. The device axially locks the center hob, thereby improving the stability and reliability of the installation of the center hob, thereby reducing abnormal wear and damage of the center hob, and improving the service li...

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Abstract

The invention discloses a center hobbing cutter axial locking device. The center hobbing cutter axial locking device comprises a first pressing block and also comprises a second pressing block, wherein the first pressing block is used for being fixedly connected with a center hobbing cutter; and the second pressing block is used for extruding the first pressing block to tightly press the center hobbing cutter along the axial direction of the center hobbing cutter as well as tightly press the center hobbing cutter on a center knife holder for mounting the center hobbing cutter. The invention discloses a heading machine comprising the center hobbing cutter axial locking device. The center hobbing cutter axial locking device tightly presses the center hobbing cutter along the axial directionso as to improve the mounting stability and reliability of the center hobbing cutter, reduce abnormal abrasion and damage to the center hobbing cutter and prolong the service life of the center hobbing cutter.

Description

technical field [0001] The invention relates to the technical field of cutter assembly, in particular to an axial locking device for a central hob. The invention also relates to a boring machine with the central hob axial locking device. Background technique [0002] The roadheader is a special engineering machine for tunnels, and has been widely used in tunnel projects such as subways, municipalities, railways, and highways. The center hob is installed in the center of the cutter head of the hard rock tunnel boring machine and is the main tool for breaking the rock formation in the center of the tunnel face. [0003] In hard rock formations, the center hob has a large load and vibration, and the working environment is harsh. If the installation stability is poor, it is easy to wear or loosen during the excavation process, which will affect the service life of the center hob. The center hob in the prior art is limited by the geometrical space of the center position of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10
Inventor 刘飞香程永亮彭正阳暨智勇阳旭任勇柯威李建芳
Owner CHINA RAILWAY CONSTR HEAVY IND
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