Straightening machine for edge of steel box girder

Abstract

The invention relates to an engineering apparatus, in particular to a straightening machine for an overhang edge of a steel box girder, comprising a movable stand, a resisting plate, a hydraulic mechanism and a back seat plate. The end face of the movable stand is connected with the resisting plate, the bottom of the head end of the movable stand is provided with the hydraulic mechanism, the tailend of the movable stand is provided with the back seat plate; the jack mounting base of the hydraulic mechanism is connected with the bottom of the head end of the movable stand, a hydraulic jack isconnected with the jack mounting base, a hydraulic control system drives and controls the hydraulic jack; the end plate of the resisting plate is connected with the end face of the head end of the movable stand, a reinforced plate is connected with the inner side wall of the end plate; the back seat plate is hang on the tail end of the movable stand, and a hook plate is arranged at the lower end of the back seat plate. The invention utilizes the hydraulic jack to press the deformation part of the overhang plate of the steel box girder, and straighten and form the deformation part in a cold flanged manner. The device can conveniently move on the plate of the steel box girder, thereby improving the production efficiency, reducing the labor intensity, saving the energy source without waste gas and waste smoke, and meeting the requirement of environmental protection.

Description

Technical field [0001] The invention relates to an engineering construction equipment, in particular to a cantilever edge correction device for steel box beams. Background technique [0002] Steel box girder, also known as steel box girder, is a commonly used structural form of long-span bridges, and it is more and more widely used. The design grade of the welds between the outer web and the face plate of the steel box girder is a full penetration first-class weld, and the reverse side needs to be cleaned. In terms of structure, the face plate is 83~104mm out of the outer web, and the shrinkage stress caused by welding is very obvious , Resulting in different degrees of collapse deformation, the deformation angle is about 9°. The traditional correction method mainly uses artificial flame correction and the application of external force, which is time-consuming and labor-intensive, and the correction effect is not good, and the flatness is difficult to meet the standard requireme...

AI Technical Summary

Problems solved by technology

The traditional straightening method mainly uses artificial flame straightening and external force, which is time-consuming, laborious and laborious, and the straightening effect is not good, and the flatness is difficult to meet the specification requirements. In addition, a large amount of smoke is generated due to flame straightening, which pollutes the environment

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