The brake is an essential and important component on a crane, and its braking performance directly affects the correctness of the operation and safety of each mechanism. Especially, the braking performance of the brake of the lifting mechanism and the luffing mechanism must be as reliable as possible. The brakes of the lifting mechanism and the luffing mechanism must be normally closed. For lifting hot metal, flammable, explosive and other dangerous goods, as well as lifting mechanisms that may cause significant danger or loss in the event of accidents during lifting, each set of driving device should be equipped with two sets of brakes.
At present, there are three types of brakes commonly used in cranes, namely belt brake, block brake and disc brake. Common brakes for cranes and their characteristics