Hanger with steel-reel damage-proof function

Abstract

The invention relates to a cargo sling with damage preventing function for steel coil, wherein the inside of a clamp arm of the cargo sling is provided with a vertical shaft capable of moving along the radial direction of the clamp arm and an elastic component arranged at the inside of the vertical shaft; the vertical shaft is also provided with a spring and a sliding piece pushed by the spring with the external surface protruding above the internal side face of the clamp arm. The sliding piece can gradually increase the acting force generated between the clamp arm and the end face of the steel coil so as to exert the gradually increasing acting force on the scraggly end face of the steel coil; moreover, the sliding piece flattens the scraggly end face of the steel coil through gradually extruding, thereby maintaining flatness of the end face without causing any damage on the end face.

Description

Technical field: [0001] The invention relates to a hoist with the function of preventing damage to steel coils which can be hung on the hook of a crane or an elevator, the hoist comprises a suspension element and a clamp arm installed in the lower area of ​​the suspension element. Background technique: [0002] Spreaders for handling steel coils in the prior art generally comprise a suspension element connectable to a hook of a crane or an elevator and a clamp arm installed in the lower area of ​​the suspension element, wherein the suspension element has an internally mounted The rectangular part of the electric component, and the clamp arm is composed of two rods with opposite ends bent respectively, and the upper bent part is installed in the lower area of ​​the suspension element, and the lower bent part forms a hole that can be inserted into the hollow of the steel coil hook. The electric part in the suspension element is used to control the action of the clamp arm, whi...

AI Technical Summary

Problems solved by technology

[0003] However, since the clamp arm is made of a rigid material such as cast iron or steel, and the weight of the steel coil itself can reach tens to tens of tons, it is difficult to carry the steel coil with a spreader of this structure. When the operator is in the process of centering, the first problem that comes out is that the hook or jaw of the spreader sometimes touches the end face of the steel coil, and then damages or scratches it; secondly, when lifting the steel coil During the process, the inner sides of the two clamp arms must be tightly attached to the two sides of the steel coil to prevent the steel coil from loosening. Contact will also cause relative movement due to the excessive mass of the steel coil, which will cause damage to the edges and end faces of the steel coil; Restricted by various aspects, there are often uneven or tower-like phenomena on both sides of the steel coil that gradually become convex from the outer to the middle of the steel coil. Install the buffer device, that is, directly clamp the steel coil to lift it, and the strong force of the clamp arm will directly cause the protruding part of the steel coil to bend or break, causing great economic losses to the production enterprise, and also waste of resources

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