How many centimeters should the crane hook be replaced?
The question raised by the questioner can be understood as "how many centimeters of crane hooks should be worn"According to the above thinking, the problem of how many centimeters of the hook is not a fixed. Provide the following answers:1, the wear of dangerous section according to GBl0051.2 manufacturing hook, not greater than 5% of the original height;2, according to the standard used to manufacture the hook, should be greater than the original size of 10%.
Crane unsafe condition: the first is the design of non-standard risks, such as overload protection failure, balance shaft strength and no unhooking preventing device, sling rigging selection; followed by manufacturing defects and installation defects, such as improper material selection and processing quality is not good, so the equipment is put into use with risks.
5cm need to be replaced.The wear of the dangerous section shall be made by GBl0051.2, which shall not be greater than 5% of the original height, and the hook made by the following standard shall be larger than the original size of 10%.Floating crane is generally divided into fast and slow hook, hook. But the use of large tonnage crane hook is very small. Mainly on the use of small crane. Fast hook is generally a single strand wire rope, lifting speed, high efficiency, slow hook according to the weight of lifting, and many times need on-site return wire rope, so as to be able to lift the goods. Seen the largest is 7-8 of the magnification, mainly on the lifting of heavier goods.
