Pulley group in the lifting equipment
Pulley group is composed of a number of fixed pulleys and moving pulleys, can achieve the purpose of both save the effort and change the direction of force. In use, the pulley use effect depends on the amount of labor-saving and method of rope winding. Pulley group is widely used in cranes, winches, lifts platform and lifting other machinery, the chain hoists commonly used in the factory are also the pulley block.
