The QD type general overhead crane is one of the commonly used equipment for cargo lifting and handling. Different from other conventional equipment, the overhead crane is mainly installed overhead at construction sites and can operate in three-dimensional spaces including forward and backward, left and right, as well as up and down directions.
To ensure the safe and stable operation of the equipment, all potential safety hazards must be eliminated, among which hook sway is a typical hidden danger.
Hook sway of overhead cranes is mostly caused by improper operation by construction personnel, and it will lead to serious consequences. It will not only cause severe damage to slings and rigging due to violent swinging and adversely affect the metal structure, resulting in loosening, fracture and other failures, but also leave hidden track gnawing risks for the equipment.
In addition, the hook sway of QD type general overhead cranes poses a threat to surrounding personnel and equipment. It is likely to cause collisions and safety accidents, and adversely affect the construction progress.
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