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The Structure Of The Crane
Jan 10, 2018

Cranes mainly include hoisting mechanism, operating mechanism, luffing mechanism, rotating mechanism and metal structure. Hoisting mechanism is the basic working mechanism of cranes, mostly by hanging system and winch composition, but also through the hydraulic system lifting heavy objects. The operating mechanism is used to vertically move heavy weights or to adjust the working position of the crane, which is generally composed of motors, reducer, brakes and wheels. The luffing mechanism is only equipped on the jib crane, the amplitude of the jib is reduced, the amplitude of the tilt is increased, the balance and the unbalanced amplitude are divided. The slewing mechanism is composed of a driving device and a slewing bearing device for turning the boom. Metal structure is the skeleton of the crane, the main bearing parts such as bridge, arm and door frame can be box-shaped structure or truss structure, also can be web structure, some can be used as supporting beam.