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System for fixing cutting tool and tunnel boring machine comprising same

A technology for tunnel boring machines and cutting tools, which is applied in tunnels, mining equipment, earthwork drilling and mining, etc. It can solve problems such as complex methods, and achieve the effect of quick and easy operation, quick and easy disassembly and reassembly

Inactive Publication Date: 2017-10-24
NFM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method therefore requires several special operations, in particular to pivot the engaging pin, which complicates the method

Method used

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  • System for fixing cutting tool and tunnel boring machine comprising same
  • System for fixing cutting tool and tunnel boring machine comprising same
  • System for fixing cutting tool and tunnel boring machine comprising same

Examples

Experimental program
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Embodiment Construction

[0026] figure 1 Shown is a fastening system 100 for a cutting tool, formed in this example by a disc cutter 1 , on a cutting head (also not shown) of a tunnel boring machine (not shown). The fixation system 100 comprises a hollow housing 3 fixedly fastened to the cutting head and into which the disc cutter 1 is inserted. The housing 3 has a front face 30 from which the disc cutter 1 protrudes and which is designed to be opposite the rock wall to be hollowed out. The housing 3 comprises a rear face 32 through which an operator has access to the securing system 100 in order to disassemble the disc cutter 1 so that said disc cutter can be replaced by a new one. An axis perpendicular to the front face 30 and the rear face 32 defines a longitudinal direction X-X' of the fixation system 100 . Hereinafter, the terms “front” and “rear” are used to denote the front 30 and rear 32 .

[0027] The disc cutter 1 comprises two flanges 5 and 6 between which the rotating part of the disc c...

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PUM

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Abstract

The invention relates to a system (100) for fixing a cutting tool (1) on a cutting head of a tunnel boring machine, comprising a housing (3) fastened to the cutting head, into which the cutting tool is inserted and Comprising two flanges (5, 6) between which the active part (70) is mounted, the fixing system also includes a retractable a locking element (15, 16), the locking element is movable relative to the flange between a first position and a second position, in the first position, the locking element engages in the housing to lock the cutting tool in the housing, In the second position, the locking element disengages the housing and allows removal of the cutting tool from the housing, the system comprising means (8, 11, 13) for jointly moving the cutting tools, adapted to cause the locking element in its first Translation between a first position and a second position, and these moving means are adapted to be actuated in a single operation.

Description

technical field [0001] The invention relates to a system for fastening a cutting tool to a cutting head of a tunnel boring machine. The invention also relates to a tunnel boring machine comprising a cutting head comprising a cutting tool fixed in the cutting head using such a fixing system. Background technique [0002] Tunnel boring machines generally comprise a cutting head provided with a disc cutter, which is a circular cutting tool which rotates about an axis and which makes it possible to drill the rock in the form of a graduated plate. Tunnel boring machines can also include scraping tools called "rippers". The cutting head thus comprises a plurality of disc-shaped cutters regularly distributed over its surface. Each disc cutter is secured to a housing on the cutting head, most commonly by a set of screws, wedges and nuts. Such fastening systems, manufactured in particular by Robbins, usually consist of several detachable elements that make it possible to lock the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/10
CPCE21D9/10
Inventor 萨拉姆·穆巴拉克托马斯·加缪
Owner NFM TECH
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