Cold-drawing forming device for transition section of tunnel profile steel arch

Abstract

The invention discloses a cold-drawing forming device for a transition section of a tunnel profile steel arch. The cold-drawing forming device comprises a base, a pushing mechanism, an arc-shaped template mechanism and a hydraulic mechanism, wherein the pushing mechanism and the arc-shaped template mechanism are oppositely arranged on the base; profile steel to be machined is arranged between the pushing mechanism and the arc-shaped template mechanism; and the hydraulic mechanism is arranged on one side of the base, and connected with the pushing mechanism. The cold-drawing forming device is reasonable in design structure, stable in performance, high in safety performance, easy in operation, low in noise, more energy-saving and environment-friendly, and the profile steel is formed in one step during bending; the radian can be adjusted according to requirements, and the bending speed is high; the stability performance is high, and the number of workers is small during construction operation; the working efficiency is greatly improved, and the quality requirement is met; and a bending device for the transition section of the tunnel profile steel meets the safety requirements.

Description

technical field [0001] The invention belongs to the technical field of one-time bending forming of a section steel arch frame with two different radii for initial support in the tunnel excavation construction process, and in particular relates to a cold drawing forming device for a transition section of a tunnel section steel arch frame. Background technique [0002] In recent years, construction projects have higher requirements for construction tooling equipment and mechanical equipment, and more stringent requirements for energy conservation and environmental protection have increased the cost of construction companies. Construction companies have also proposed refined management. To seek benefits from management is to seek efficiency from management. , to reduce the labor intensity of construction personnel, improve operating efficiency, and improve the requirements for high-quality development of construction. It is also required to reduce environmental pollution during ...

AI Technical Summary

Problems solved by technology

[0004] At present, the bending of the transition section of the shaped steel arch frame is performed by a rotary cold bender. During the bending operation of the shaped steel arch frame transition section, the telescopic length of the center wheel and the length of the compression wheel must be adjusted each time. height, and there is a straight section at the arc-shaped end of the transition section, and the section that cannot be bent must be cut off so that it can be smoothly connected with the arc-shaped angle of the shaped steel arch in the middle, which will waste a section of shaped steel, and the operation of the construction personnel is also more troublesome. The accuracy of the work is not well controlled, which has a serious impact on the quality of the production process, and the construction efficiency is relatively low, and it must be operated by professionals, which will directly affect the construction quality and construction progress, and increase the construction cost of the enterprise.

[0005] At present, there is no easy-to-operate, fast and efficient bending device for tunnel steel transition section in the market

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