Sealed replacing tool and method of ordinary-pressure cutter replacement device of shield tunneling machine

Abstract

The invention relates to the technical field of tunneling machines, in particular to a sealed replacing tool and method of an ordinary-pressure cutter replacement device of a shield tunneling machine. The sealed replacing tool of the ordinary-pressure cutter replacement device of the shield tunneling machine comprises a supporting oil cylinder, a seal barrel and a supporting seat. The seal barrel comprises a barrel front cover and a barrel back support. The barrel back support is connected into a cutter replacement supporting barrel of the ordinary-pressure cutter replacement device in a sleeved manner. A supporting oil cylinder is vertically arranged at the center of the lower end of the barrel front cover. The supporting oil cylinder and the barrel front cover are fixedly connected through an arranged supporting shoe clamping block. A supporting seat is of an annular supporting structure which is formed by splicing two semicircles. The bottom of the supporting seat can be fixedly connected with a welded seat through bolts. The sealed replacing tool and method of the ordinary-pressure cutter replacement device of the shield tunneling machine solves the problem that in the construction process in a high water pressure stratum, when seal of the ordinary-pressure cutter replacement device is ineffective and needs to be replaced, in the construction process, the practical function of the ordinary pressure cutter replacement device is guaranteed, and therefore the safety of ordinary pressure cutter replacement is guaranteed when the shield tunneling machine conducts construction in the high water pressure stratum.

Description

technical field [0001] The invention relates to the technical field of tunnel boring machines, in particular to a sealed replacement tooling and method for an atmospheric pressure tool changing device of a shield machine. Background technique [0002] With the development of underground space, more and more river-crossing and sea-crossing tunnels are gradually being constructed. Muddy water shields are used as large-scale engineering machinery dedicated to the construction of these tunnels. A commonly used tool changing device is designed on the shield cutter head to realize manual replacement of worn and damaged tools for stratum excavation through the normal pressure tool changing device in the arm beam of the cutter head. The sealing performance of the normal pressure tool changing device is extremely important , requiring multiple test experiments during the design and manufacture process. [0003] The normal pressure tool change device developed by our company includes...

AI Technical Summary

Problems solved by technology

It can perfectly solve the various disadvantages of the above-mentioned tool change under pressure, but due to the use of the normal pressure tool change device, the sealing performance often declines, and the normal pressure tool change device needs to be removed regularly for replacement or maintenance.

[0004] At present, in the construction process of high water pressure strata, when the seal of the normal pressure tool change device of the shield machine fails to repair and replace, it is difficult to repair and replace, which seriously affects the construction progress, and the dismantling cost is high, and the personal safety risk of the dismantling personnel is high. Therefore, it is necessary to design a fast and convenient Safe replacement of atmospheric pressure tool changer seal replacement tooling and methods has become an urgent problem to be solved in the tunnel construction industry

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