Brief description of crane classification

Shandong Hongfu Technology Co., Ltd. briefly introduces the classification of cranes

The lifting machinery used in bridge construction projects can be generally divided into four categories: light and small lifting equipment, bridge type lifting machinery, boom type crane and cable crane according to their different structures and performances.

Light and small lifting equipment such as Jack, pneumatic hoist, electric hoist, balance hoist (also known as balance crane), winch, etc. Bridge type lifting machinery, such as beam crane, etc. Jib type cranes such as fixed slewing cranes, tower cranes, truck cranes, tire cranes, crawler cranes, etc. Cable crane, such as elevator, etc.

According to the lifting nature: mobile crane, tower crane, mast crane.

According to the driving mode, one is centralized driving, that is, a motor drives the long transmission shaft to drive the driving wheels on both sides; The other is driven separately, that is, the driving wheels on both sides are driven by a motor. Medium and small bridge cranes mostly adopt the "three in one" driving mode of combining brake, reducer and motor. In order to facilitate installation and adjustment, the driving device of ordinary bridge cranes with large lifting capacity often adopts universal coupling.

According to the structural form, cranes are mainly divided into light and small lifting equipment, bridge type (bridge type, gantry crane), boom type (self-propelled, tower type, portal type, railway type, floating ship type, mast crane), cable type.

Light and small lifting equipment is characterized by portability, compact structure, simple action, and the projection of the operation range is mainly based on points and lines. Light and small lifting equipment generally has only one lifting mechanism, which can only make the heavy object make a single lifting movement. Those in this category include jacks, pulleys, hand (pneumatic, electric) hoists, winches, etc. Electric hoists are often equipped with trolley and metal frame to expand the scope of operation.