A protective overturning device and overturning method for super-large h-shaped steel members

Abstract

The invention discloses a protective turnover device for an oversized H-shaped steel component and a turnover method of the protective turnover device. The protective turnover device is characterized in that the turnover device is composed of arc-shaped plate assemblies arranged at the two ends of the H-shaped steel component and a hanging bracket assembly on the middle portion, the hanging bracket assembly is a frame component with U-shaped shackles arranged at the four corners correspondingly, and fastening pieces composed of fastening plates and tight ejection bolts are arranged in a frame; the number of the fastening pieces composed of the fastening plates and the tight ejection bolts is three, and the fastening pieces are arranged at the inner corners of the frame correspondingly; and the arc-shaped plate assemblies are C-shaped turnover slide plate components, and clamping and fixing pieces composed of clamping plates and bolts are symmetrically arranged on a port of each arc-shaped plate assembly. Compared with the prior art, the protective turnover device and the turnover method are simple in structure and convenient to use, the turnover work is conducted on an assembling jig frame, the hoisting load of a traveling crane is effectively decreased, safety of the turnover process is ensured, it is ensured that the steel component does not deform, and the protective turnover device and the turnover method are particularly suitable for conducting the protective turnover work on the oversized H-shaped steel component with the dead weight of the component larger than the hoisting capacity of the traveling crane.

Description

technical field [0001] The invention relates to the technical field of hoisting of steel components, in particular to a device and a turning method for protectively turning over a super-large H-shaped steel component when the crane capacity of the factory is insufficient. Background technique [0002] With the vigorous development of the construction steel structure industry, more and more super-large and super-heavy steel structures can be hoisted directly on site, so the components added to the steel structure will develop in the direction of super-heavy and super-large. However, during the production and transportation of steel structural members, it is necessary to turn over the steel members repeatedly. In order to reduce the damage to the members by the spreader and to perform more safe turning operations, the members are usually turned over or turned over with a frame set on the members. lift. [0003] The prior art has the following problems for turning over some su...

AI Technical Summary

Problems solved by technology

[0004] (1) The self-weight and external dimensions of super-large components are relatively large, and the lifting capacity of the conventional crane in the factory is less than the self-weight of the steel component, so the crane cannot meet the turning operation of the steel component in the air;

[0005] (2) Due to the thick plate of the super-large H-shaped steel member, in order to ensure its processing quality, it is generally not allowed to weld temporary parts on the base metal of the member, so the fixing method of the turning device and the steel member cannot be welded;

[0006] (3) When the steel components of the factory are turned over for the first time, the main weld of the components has not been completed, so it is difficult to control the deformation of the components during the turning process;

Images