Shandong Qilide Heavy Industry Group Co., Ltd. Briefly describes the classification of cranes

The lifting machinery used in bridge construction projects can generally be divided into four categories based on their structure and performance: light and small lifting equipment, bridge type lifting machinery, boom type cranes, and cable cranes.

Light and small lifting equipment such as jacks, pneumatic hoists, electric hoists, balance hoists (also known as balance cranes), winches, etc. Bridge type lifting machinery such as beam cranes. Boom type cranes such as fixed slewing cranes, tower cranes, truck cranes, tire cranes, crawler cranes, etc. Cable cranes such as elevators.

Classified by lifting properties: mobile crane, tower crane, and mast crane.

Divided by driving method: one type is centralized driving, which uses an electric motor to drive a long transmission shaft to drive the active wheels on both sides; Another type is to drive separately, that is, each active wheel on both sides is driven by an electric motor. Small and medium-sized bridge cranes often use a "three in one" drive system that combines brakes, reducers, and motors. For ordinary bridge cranes with large lifting capacity, universal couplings are often used as the drive device for easy installation and adjustment.

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

The characteristics of light and small lifting equipment are lightweight, compact structure, simple operation, and the projection of the operating range is mainly based on points and lines. Light and small lifting equipment typically only has one lifting mechanism, which can only perform a single lifting motion on heavy objects. Those belonging to this category include: jacks, pulleys, hand-operated (pneumatic, electric) hoists, winches, etc. Electric hoists are often equipped with running carts and metal frames to expand their operating range.