How to judge the quality of the electric wire rope hoist hook
Electric wire rope hoist is a kind of lifting equipment, are operating personnel following the device to operate, so the safety of the electric hoist must check. As one of the important parts of electric hoist hook, mainly used for hoisting weights, the hook to buy more is the priority among priorities!
Hook selection should pay attention to what? How we choose to good quality hook! Become the choice of electric hoist is an important basis for the!
The quality of electric wire rope hoist hook judgment methods are as follows:
1, the hook hook should be greater than 360 degrees to 180 degrees in the horizontal plane and vertical direction within the flexible rotation.
2, the hook surface should be smooth, no peeling, acute, burr, crack, wrinkle and other defects.
3, hook and its affiliated parts in any of the following circumstances, should be scrapped:
4, the dangerous section of wear up to 10% of the original size;
5, the opening degree than the original size increased 15%;
6, the torsional deformation of more than 10 degrees;
7, the dangerous section or hook neck plastic deformation;
8, a nut and a crane hook crossbeam any crack and deformation.