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Cranes primarily comprise lifting mechanisms, traveling mechanisms, luffing mechanisms, slewing mechanisms, and metal structures.


Release date:

2024-01-18

Cranes primarily consist of a hoisting mechanism, a traveling mechanism, a luffing mechanism, a slewing mechanism, and a metal structure. The hoisting mechanism is the crane’s fundamental working component; it typically comprises a suspension system and a winch, though some cranes use hydraulic systems to lift and lower loads. The traveling mechanism enables the longitudinal horizontal movement of loads or the adjustment of the crane’s operating position and generally includes an electric motor, a reducer, a brake, and wheels. The luffing mechanism is found only on boom-type cranes: as the boom is raised, the radius decreases, and as it is lowered, the radius increases; luffing mechanisms are classified as either balanced or unbalanced. The slewing mechanism facilitates the rotation of the boom and consists of a drive unit and a slewing bearing. The metal structure serves as the crane’s skeletal framework; its principal load-bearing members—such as the bridge, boom, and gantry—may be box‑type, truss‑type, or web‑type structures, with some employing structural steel sections as supporting beams.

Cranes primarily consist of a hoisting mechanism, a traveling mechanism, a luffing mechanism, a slewing mechanism, and a metal structure. The hoisting mechanism is the crane’s fundamental working component; it typically comprises a suspension system and a winch, though some cranes use hydraulic systems to lift and lower loads. The traveling mechanism enables the longitudinal horizontal movement of loads or the adjustment of the crane’s operating position and generally includes an electric motor, a reducer, a brake, and wheels. The luffing mechanism is found only on boom-type cranes: as the boom is raised, the radius decreases, and as it is lowered, the radius increases; luffing mechanisms are classified as either balanced or unbalanced. The slewing mechanism facilitates the rotation of the boom and consists of a drive unit and a slewing bearing. The metal structure serves as the crane’s skeletal framework; its principal load-bearing members—such as the bridge, boom, and gantry—may be box‑type, truss‑type, or web‑type structures, with some employing structural steel sections as supporting beams.