Automatic assembly alignment lifting appliance for rectangular steel slab and lifting method

Abstract

The invention discloses an automatic assembly alignment lifting appliance for a rectangular steel slab and a lifting method. The lifting appliance comprises a cross beam, wherein a lifting lug is arranged at the upper part of the cross beam, and a hydraulic clamping mechanism and a right-angle clamp are arranged at the two ends of the cross beam respectively; and a hydraulic jack is arranged on the hydraulic clamping mechanism and is in contact connection with the right-angle clamp. The automatic assembly alignment lifting appliance has the beneficial effects that firstly, the height of a sealing welding steel slab is increased, so that the weight of the weldable steel slab is increased; secondly, in a conventional mode, the alignment is manually carried out on a lifting vehicle by many people, the adjustment is carried out for multiple times, and after the lifting appliance is used, the automatic alignment can be realized after the alignment is carried out only by two persons; and finally, the production efficiency is improved, and the lifting appliance is safer.

Description

Technical field[0001]The invention relates to the field of metal construction forming sealing and welding multilayer slabs, in particular to a rectangular steel slab automatic assembly and alignment hanger.Background technique[0002]In the metal construction process, when slabs are assembled, the processed slabs need to be stacked one after another, and then the gaps of each layer of the slab circumference are completely welded in the vacuum sealing chamber. In this process, the allowable error of the amount of misalignment between the two slabs is only 2mm, which will greatly affect the welding quality, and even cause air to be mixed into the gap after the slab is sealed, and the entire sealing ingot is scrapped. When slabs with a large number of slab layers and large heights are assembled, ordinary slab spreaders use the principle of leverage, so that the upper lever occupies a long space, and the crane cannot lift the slab to the required height. The height of the sealing ingot, w...

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Problems solved by technology

[0003] The purpose of the present invention is mainly to solve the problems existing in the metal slab construction and forming process, such as high slab stacking, height limitation of ordinary hangers, high alignment difficulty, low efficiency and high risk, etc. when sealing and welding large tonnage steel slabs. shortcoming

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