Slings

Abstract

The invention relates to a hanger. A vertical shaft is arranged in a gripper arm of the hanger and provided with a spring and a slide element which is pushed by the spring and has an outer surface protruding outside the inner side surface of the gripper arm. When hanging a coil of strip, the end surface of the coil of strip can be effectively avoided from scuffing through direct contact between the slide element on the gripper arm and the coil of strip; while the guide wheels arranged at the two sides of a supporting hook of the gripper arm can roll on the end surface of the coil of strip to lead the slide friction between the two into a rolling friction; consequently the coil of strip can not be scuffed during the falling process of the hanger.

Description

Technical field: [0001] The invention relates to a spreader for handling steel coils which can be suspended on the hook of a crane or hoist, the spreader comprising a suspension element and a clamp arm mounted 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, which can make the two clamp...

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, resulting in damage to the edges and end faces of the steel coil, which not only causes great economic losses to the production enterprise, but also causes a serious waste of resources

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