1.Overview of major hoisting machinery accidents The crane has a large operating height and a wide coverage area, and can hoist various types of construction heavy objects. However, during actual operation, safety accidents are prone to occur. Safety accidents during the hoisting process will not only cause huge economic losses to the construction unit, but also cause irreparable damage to the lives and property of the construction workers. Accidents mainly include accidents involving damage to mechanical equipment; accidents involving short heavy ropes, decoupling of heavy objects, broken hooks, and broken booms; accidents involving the impact of external factors on the environment, etc. 2.Danger area analysis a.Under high voltage wires Crane work often needs to be carried out under high-voltage power lines, which is also one of the areas most prone to electric shock accidents. High-voltage wires have a long induction range. If the crane approaches this area, an electric shock accident may occur due to excessive induced current. b.There is a safety hazard in the wire rope of the crane itself. During use, there was a slight breakage problem, and the hook was obviously deformed and loose. Heavy objects falling from high places may cause casualties and other problems. c.Overload in actual hoisting operations. It is the lifting machinery operator's lack of safety awareness and lack of in-depth understanding of the weight of the sling or the object to be transferred before the transfer operation. Overloading can damage the sling, causing the sling to loosen or fall, causing heavy objects to fall from high places and causing casualties. 3.Meassure a.Regularly check the electrical equipment of the crane to ensure that wires, plugs, etc. are in good contact, and to prevent aging and damage of wires. b.Set up safety isolation fences or signs around the bridge or gantry crane, and strictly prohibit unauthorized personnel from approaching. c.The construction contracting unit must strictly formulate a complete construction environment supervision and management mechanism, and conduct quality and safety management of the environment and lifting machinery based on the requirements of construction drawings; d.Complete hoisting machinery maintenance mechanism. Since hoisting machinery is generally constructed in an open-air operating environment, it is prone to mechanical wear, low operating speed, short service life and many other problems. For this reason, it is necessary to carry out regular maintenance on the lifting machinery and improve the maintenance mechanism of the lifting machinery. 4.Summarize In summary, Dingya Crane reminds you that during engineering construction, you must pay attention to the safety of the use of lifting machinery, take measures to prevent accidents, guide workers to gradually develop safety awareness, regularly organize workers to conduct safety knowledge and skills training, and effectively strengthen the safety awareness of workers. Safety supervision of heavy machinery and scientific and rational use of machinery and equipment.