Overhead traveling crane lifting appliance for steel tube pickling

Abstract

The invention discloses an overhead traveling crane lifting appliance for steel tube pickling. The overhead traveling crane lifting appliance comprises a balance device, a cross beam and a plurality of lifting hooks, wherein the balance device comprises two first balance plates and two second balance plates; a first rotating shaft is arranged at the upper end of each first balance plate; the lower end of each first balance plate is hinged with the upper end of the second balance plate through a second rotating shaft; angles are formed between the first balance plates and the second balance plates; the lower end of each second balance plate is hinged with the top of the cross beam through a third rotating shaft; a plurality of hooks are arranged at the bottom of the cross beam; and each hook hangs one lifting hook. The overhead traveling crane lifting appliance has a simple structure; by the overhead traveling crane lifting appliance, swinging of a steel tube and sputtering of acid liquor are avoided, and waste of the acid liquor and pollution to the environment are reduced; and furthermore, automatic unhooking and automatic hooking of the steel tube when the steel tube is fed intoa slot and discharged from the slot can be realized, so the utilization rate of an overhead traveling crane is increased and the steel tube pickling efficiency is improved. When the inclination degree of the cross beam is adjusted through a steel wire rope, the steel tube can be kept steady and made to be inclined.

Description

technical field [0001] The invention belongs to the field of steel pipe production, especially steel pipe pickling, and in particular relates to a crane spreader for steel pipe pickling. Background technique [0002] The current stainless steel pipes must be pickled before and after cold rolling to remove the scale and grease on the surface of the steel pipe. In addition, pickling may be used to remove the scale on the surface during the production of hot-rolled pipes. [0003] The current pickling of steel pipes mostly adopts multi-tank pickling, which requires that the cranes and spreaders used for pickling steel pipes should meet the process requirements and efficiency requirements of pickling. [0004] During the operation of the crane, the suspended steel pipe should be kept stable. When entering the pickling tank and when leaving the pickling tank, especially when pouring the acid in the steel pipe after leaving the pickling tank, the steel pipe should be kept stable t...

AI Technical Summary

Problems solved by technology

[0005] Multi-tank pickling can realize continuous pickling and increase the efficiency of pickling. This requires that the crane can smoothly pick up a group of steel pipes in the next pickling tank after putting the steel pipes into the tank. Uncoupling and hooking, and most steel pipe factories currently use manual methods to achieve decoupling and hooking, which not only increases the danger of employees, but also reduces production efficiency

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