Composition and structure of bridge crane

Bridge crane is a kind of hoisting machinery with simple structure and wide application. It is mostly used in machinery manufacturing, assembly workshop, warehouse and other places. It is mainly composed of bridge, crane operating mechanism, trolley, electrical equipment, etc.

Components of bridge crane:

Bridge crane is generally composed of mechanical, electrical and metal structures. The external image of the bridge crane is a single span flat slab bridge with two ends supported on two parallel overhead rails.

1.  Mechanical part: it is divided into three mechanisms, namely lifting mechanism, trolley running mechanism and crane running mechanism. The lifting mechanism is used to vertically lift articles, and the trolley running mechanism is used to move laterally with load; The crane running mechanism is used to move the lifting trolley and articles longitudinally to achieve the purpose of handling and loading and unloading goods in three-dimensional space.
2.  Metal structure: it is composed of bridge and trolley frame.
3.  Electrical part: it is composed of electrical equipment and electrical circuits

Mechanical structure of bridge crane:

1.  Bridge: it is composed of two main beams, two end beams, walking platform, guardrail and other parts. There are two structural forms: box and truss.
2.  Crane operating mechanism: it is composed of motor, brake, reducer, coupling, transmission shaft, angular bearing box, wheel and other parts.
3.  Lifting trolley: it is composed of trolley frame, lifting mechanism and trolley running mechanism.
4.  The hoisting mechanism is composed of motor, brake, transmission shaft, coupling, reducer, drum, fixed pulley block, steel wire rope and other parts. It is divided into single brake and double brake.
5.  Cab: the place where the crane operator works. It is equipped with control equipment (linkage table or cam controller), power distribution protection box, signal device and lighting equipment. After the hatch is closed, the crane can start. This can avoid personal accidents caused by people working on the vehicle or driving before entering the cab.

Share on Facebook

Tweet

Follow us

Save