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A lifting hook, also known as a lifting pulley, is a hook and pulley set connected by a wire rope to the crane. It consists of a wire rope that goes around several pulleys at a time.

The basic structural form of the lifting hook is mainly composed of straight handle double hooks, insurance clamps, hook beams, thrust spherical roller bearings, hook nuts, pulleys, pulley shafts, deep groove ball bearings, pulley covers, shaft baffles, pull plates, oil cups and other components. The sling is hung in a double hook with a straight handle. The sling is connected to the object to be hoisted. The wire rope is output from the crane and connected to the pulley block. The purpose of hoisting is achieved by controlling the lifting and translation functions of the crane. The double hook form can ensure overall stability.

The lifting hook can achieve passive rotation through the thrust spherical roller bearing on the hook beam. But it must be based on external forces. The hoisted object will rotate only when the worker exerts lateral rotation force on the hoisted object. For some products that are large and heavy, workers must exert a lot of force to rotate, and sometimes multiple workers are even required to rotate together. Due to the effect of inertia, the expected rotation effect is often not achieved, the work efficiency is low, and the labor intensity of the staff is increased. The shaking and inertia during rotation cannot guarantee the personal safety of workers.

A lifting hook, also known as a lifting pulley, is a hook and pulley set connected by a wire rope to the crane. It consists of a wire rope that goes around several pulleys at a time.

The basic structural form of the lifting hook is mainly composed of straight handle double hooks, insurance clamps, hook beams, thrust spherical roller bearings, hook nuts, pulleys, pulley shafts, deep groove ball bearings, pulley covers, shaft baffles, pull plates, oil cups and other components. The sling is hung in a double hook with a straight handle. The sling is connected to the object to be hoisted. The wire rope is output from the crane and connected to the pulley block. The purpose of hoisting is achieved by controlling the lifting and translation functions of the crane. The double hook form can ensure overall stability.

The lifting hook can achieve passive rotation through the thrust spherical roller bearing on the hook beam. But it must be based on external forces. The hoisted object will rotate only when the worker exerts lateral rotation force on the hoisted object. For some products that are large and heavy, workers must exert a lot of force to rotate, and sometimes multiple workers are even required to rotate together. Due to the effect of inertia, the expected rotation effect is often not achieved, the work efficiency is low, and the labor intensity of the staff is increased. The shaking and inertia during rotation cannot guarantee the personal safety of workers.