An adjustable tool mechanism for shield machine

Abstract

An adjustable cutter mechanism for a shield tunneling machine comprises four sets of scraper assemblies and four sets of reamer assemblies which are arranged on a cutter disc. The adjustable cutter mechanism for the shield tunneling machine is characterized in that the scraper assemblies are circumferentially arranged at the edge of the cutter disc at equal intervals, and the reamer assemblies are circumferentially arranged in the middle of the cutter disc at equal intervals; each scraper assembly comprises scraper bodies and a two-way oil cylinder, wherein the middle of the two-way oil cylinder is fixed on the cutter disc through a positioning block, and the scraper bodies are arranged on the two end heads of the two-way oil cylinder; each reamer assembly comprises a reamer bit body, a speed reducer, a variable displacement motor and a sliding rail device, the reamer bit bodies are arranged in the sliding rail devices, the sliding devices are arranged in the cutter disc, the speed reducers are arranged on the back sides of the reamer bit bodies, the variable displacement motors are arranged on the back sides of the speed reducers, and the back sides of the variable displacement motors are provided with hydraulic oil pipes. According to the adjustable cutter mechanism for the shield tunneling machine, the cutter disc is adjustable, and the adaptability is stronger.

Description

technical field [0001] The invention relates to the field of cutter manufacturing, in particular to an adjustable cutter mechanism for a shield machine. Background technique [0002] With the rapid development of the economy, the population of big cities is expanding rapidly, and the traffic pressure of the whole city is also increasing day by day. After expert research and demonstration, the use of subway or light rail is the most effective way to solve the urban traffic pressure. In the construction of subway and light rail , our most commonly used construction machinery equipment is the shield machine. The shield machine tool is the key component of the shield rock-breaking excavation. It is easy to be damaged during the excavation and needs to be replaced frequently. It is related to the opening of the cutterhead, the arrangement of the cutters and the correct selection and maintenance of the cutters. Contents of the invention [0003] The technical problem to be solv...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method to solve the adjustment requirement of the shield machine shield body on the change of the hole cross-sectional area, which can adjust the diameter of the cross-sectional area of ​​the side scraper, so as to realize the tunnel cross-sectional diameter of the tunnel. The size can be adjusted, and at the same time, it can solve the excavation and crushing of large-diameter pumice, boulders and local hard rocks in shield tunneling. The adjustable cutter mechanism for shield machines

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