Arch center mounting device for construction of tunnel

Abstract

The invention belongs to the technical field of mounting of arch centers of tunnels and provides an arch center mounting device for construction of the tunnel, which mainly comprises a chassis (9), a large arm (7), a small arm (6) and a workpiece clamping device, wherein the large arm (7) is arranged on the chassis (9), the small arm (6) is hinged at the end part of the large arm, a cylinder bodyof a small arm oil cylinder (8) is positioned on the large arm (7) and hinged with the large arm (7), and a piston of the small arm oil cylinder (8) is hinged with the end part of the small arm (6); the arch center mounting device is provided with a four-bar linkage and an overturning oil cylinder (4) for adjusting the pitching angle of a clamped workpiece; and the workpiece clamping device mainly comprises a body, a workpiece clamp (1), a clamp rotating mechanism, a clamp swinging mechanism and a clamp opening and closing driving mechanism. By adopting the device, the artificial labor intensity can be reduced, the fast mounting can be realized and the working efficiency can be improved.

Description

technical field [0001] The invention belongs to the technical field of tunnel arch installation, and mainly relates to an arch installation device for tunnel construction. Background technique [0002] In domestic tunnel construction, when weak rock formations are encountered, arch installation and support is required to improve the stability of surrounding rock and prevent later collapse. The installation and support mostly adopts the form of an arch frame. The arch frame is generally a steel arch or a flower arch, and the steel mesh shotcrete is used to strengthen the support between them; the steel arch is generally made of No. 18 or No. 20 I-beams, H-shaped steel is used, and the flower arch is assembled and welded by rebar to form a frame shape. [0003] At present, the installation of domestic arch frames is generally carried out manually. The arch frame is placed on the edge of the rock formation by manual work, and then fixed with anchor rods, which are connected in...

AI Technical Summary

Problems solved by technology

[0003] At present, the installation of domestic arch frames is generally carried out manually. The arch frame is placed on the edge of the rock formation by manual work, and then fixed with anchor rods, which are connected in sequence to form a ring; More than kilograms, each labor operation team generally has twelve people or more; therefore, the labor intensity of manual work is quite large, the safety is poor, and the working time is often long; the arch installation equipment can realize the mechanization of the arch Operation, instead of the mode of manual work by multiple people, the heavy-duty arch can be easily grabbed and lifted to any position in the tunnel to achieve rapid installation

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