An opening and closing device for the front gate of the shield machine screw machine

Abstract

The invention relates to an opening and closing device for the front gate of a shield machine screw machine. The opening and closing device is arranged on the soil bin wall of the shield machine, and includes a left gate plate and a right gate plate. The opening and closing device also includes Including the first left power cylinder, the first right power cylinder, the second left power cylinder, the second right power cylinder and the hydraulic control unit, the first left power cylinder and the second left power cylinder The arm is hinged with the left gate plate, and the first right power cylinder and the second right power cylinder are hinged with the right gate plate through the right rocker arm. Compared with the prior art, the present invention has simple structure, compact structure and strong practicability, can realize 90° rotation of the front gate of the screw machine, can effectively reduce the occupied space of the front gate of the screw machine, and can be adjusted only through the hydraulic control unit, The operation is more convenient, the application range is wide, and it is safer and more reliable, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of shield machines, and relates to an opening and closing device, in particular to an opening and closing device for a front gate of a shield machine screw machine. Background technique [0002] Shield machine, the full name is shield tunnel boring machine, is a kind of special engineering machinery for tunnel boring. Modern shield boring machine integrates light, machinery, electricity, hydraulic, sensing and information technology, and has the ability to excavate and cut soil. body, transportation of soil muck, assembly of tunnel lining, measurement guidance and deviation correction and other functions, involving geology, civil engineering, machinery, mechanics, hydraulics, electricity, control, measurement and other disciplines and technologies, and "tailor-made" according to different geology Designed and manufactured with extremely high reliability requirements. Shield machines are now widely used in s...

AI Technical Summary

Problems solved by technology

The opening and closing angle of the front gate of the traditional screw machine is between 50-70°, but limited by the opening and closing angle of the front gate, the screw machine cannot successfully complete the required actions in a relatively small space, which will affect the normal engineering operations, and even cause certain safety hazards

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