A steel plate lifting device

Abstract

The invention discloses a steel plate hoisting device. A hoisting hook is connected above the middle point in the length direction of a main beam; two end parts of the main beam are each provided with a primary fixed pulley; a primary hoisting rope is arranged below the main beam; the primary hoisting rope sequentially laps the upper parts of the outer periphery surfaces of the two primary fixed pulleys; two ends of the primary hoisting ropes are each connected with a secondary fixed pulley; the upper parts of the outer peripheral surfaces of the two secondary fixed pulleys are each lapped by a secondary hoisting rope, and the two end parts of each secondary hoisting rope are respectively provided with a fixing device matched with steel plates. The steel plate hoisting device enables the steel plates to be stressed uniformly during the hoisting process, and enables the hoisting process to be stable and reliable.

Description

technical field [0001] The invention relates to the technical field of construction machinery equipment, in particular to a steel plate lifting device. Background technique [0002] In general, during the welding process of the box girder structure in construction machinery, it is necessary to splice and weld the steel plates purchased on the market, so that the overall specifications of the processed steel plates meet the corresponding design requirements, and in the welding process Among them, double-sided groove welding is usually used, that is, the steel plate needs to be turned 180° horizontally after the welding work on one side is completed, and then the welding work on the other side is performed. [0003] At present, in the current steel plate splicing and welding process, the steel plate is usually lifted by the magnetic lifting equipment and the corresponding flip operation is carried out. When the steel plate is turned over, the absorbed part of the steel plate ...

AI Technical Summary

Problems solved by technology

[0003] At present, in the current steel plate splicing and welding process, the steel plate is usually lifted by the magnetic lifting equipment and the corresponding flip operation is carried out. When the steel plate is turned over, the absorbed part of the steel plate is lifted first. At this time, the steel plate is easily deformed under the dual action of its own gravity and the force of the magnetic lifting equipment, and even causes the steel plate to break at the seam of welding and splicing, causing damage to related production. Machining operations adversely affect

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