Adjustable double-hook rolled steel lifting appliance

Abstract

The invention relates to an adjustable double-hook rolled steel lifting appliance which is characterized by comprising an upper lifting ring, a main lifting body, upper connecting shafts, connecting plates and lifting hooks. A lifting lug is arranged at the top of the main lifting body, the lifting lug is connected to the upper lifting ring, the two ends of the main lifting body are respectively provided with a connecting hole, connecting plates are hinged to the two connecting holes respectively through the upper connecting shafts, the lower ends of the connecting plates are respectively hinged to one lifting hook is through a lower connecting shaft, the two lifting hooks are oppositely and symmetrically arranged, and hook heads of the lifting hooks are used for being inserted into rolled steel from the two ends of the rolled steel. The adjustable double-hook rolled steel lifting appliance is simple in structure, convenient to operate and high in rolled steel loading and unloading efficiency.

Description

technical field [0001] The invention relates to a steel coil sling, in particular to an adjustable double-hook coil steel sling, which belongs to the technical field of lifting and unloading equipment. Background technique [0002] With the increasingly fierce market competition, the requirements for loading and unloading efficiency of factories, ports, and wharves are getting higher and higher, and steel coils are frequently lifted goods. The coiled steel spreader is used on the single hook of the crane, gantry crane or gantry crane, so that the horizontal coiled steel can be displaced, loaded and unloaded. Existing hoisting of coiled steel mostly adopts steel wire rope double buckles or C-shaped spreader, adopts to pass through the central hole of coiled steel to hang or hold coiled steel for hoisting. Their shortcomings are as follows: 1. When hoisting with steel wire rope, the edges and corners around the inner hole of the hoisted steel coil will seriously damage the st...

AI Technical Summary

Problems solved by technology

Their disadvantages are: 1. When hoisting by wire rope, the edges and corners around the inner hole of the hoisted steel coil will seriously damage the wire rope, and the replacement frequency of the steel wire rope is too high, and the production cost is large; It belongs to line contact, and the hoisting force is too concentrated, which will wear the inner periphery of the coil and the contact point of the wire rope, resulting in damage to the coil

2. When using a C-shaped spreader, it is necessary to find a suitable position that can maintain balance before hoisting. If it is unbalanced, the position must be readjusted. The operation is slow and the efficiency is low.

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