Cutter of shield tunneling machine, and shield tunneling machine

Abstract

The invention provides a cutter of a shield tunneling machine, and the shield tunneling machine. The cutter of the shield tunneling machine comprises a cutter body, a center installation body and a long-diameter spoke, wherein the center installation body is disposed on the cutter body in a raised manner and located at the center of the cutter body; the long-diameter spoke is connected to the center installation body, a jet hole is formed in the long-diameter spoke and located in the outer wall face of the side, turning the back to the cutter body, of the long-diameter spoke; the shield tunneling machine comprises a shield body, the cutter and a supply mechanism, and the cutter is disposed on the shield body in a rotatable manner; and the supply mechanism is disposed on the shield body, and the supply mechanism comprises a liquid storage tank, a supply pipeline and a conveying pump. The cutter of the shield tunneling machine, and the shield tunneling machine provided by the invention have the beneficial effects that the problems in the prior art that jet hole configuration on the cutter of the shield tunneling machine is irrational, so a muck modifier jetted by the jet hole cannotget full contact with a cut excavation face, muck improvement effects cannot be realized then, and thus cutter abrasion losses are large, shield construction cost is increased and shield constructionefficiency is reduced can be solved.

Description

Technical field [0001] The invention relates to the technical field of shield tunneling, in particular to a structural improvement of a cutter head of a shield tunneling machine. Background technique [0002] During the construction of subway tunnels, the shield method is widely used due to its high degree of mechanization, construction safety and good adaptability. [0003] In the prior art, in order to reduce the wear of the shield cutter head and the screw machine by the soil of the cutting excavation surface, spray holes for spraying the muck modifier to the cutting excavation surface are usually provided on the shield cutter head. The muck is improved. However, the existing spray holes are unreasonably set. The cutter head is always rotating relative to the shield body during cutting, and the muck modifier sprayed by the spray holes cannot fully contact the cutting excavation surface. The muck on the cutting excavation surface cannot be improved, resulting in a large amount o...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a cutterhead of a shield machine and a shield machine, to solve the unreasonable setting of the spray holes on the cutter head of the shield machine in the prior art, so that the slag modifier sprayed from the spray holes It cannot fully contact with the cutting excavation surface, so that the slag cannot achieve the improvement effect, which will cause a large amount of tool wear, increase the cost of shield construction, and reduce the efficiency of shield construction

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