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The Crane Is Divided Into The Main Girder Structure
Jan 10, 2018

(a) Gantry crane

Gantry Crane has the advantages of simple structure, convenient manufacture and installation, small quality of its own, and the main Liangdo is the eccentric rail box-frame structure. Compared with the double main girder gantry crane, the overall stiffness is weaker. Therefore, when the weight q≤50t, span s≤35m, this form can be used. Single main door girder crane door legs have L-type and C-type two forms. L-type manufacturing and installation is convenient, the force of the situation is good, the quality of small, but the cargo through the leg of the space is relatively small. The C-shaped foot is made into an oblique or curved shape, with the aim of having a larger transverse space to allow the goods to pass through the foot smoothly.

(b) Double girder bridge crane

The double girder bridge crane is composed of straight rail, crane main girder, lifting trolley, power transmission system and electrical control system, especially suitable for large suspension and large weight plane range material conveying.

Double girder bridge Crane has the advantages of strong bearing capacity, large span, good overall stability and many varieties, but its quality is larger than that of single girder gantry crane with the same weight and the cost is higher. According to the main girder structure, can be divided into box girder and truss two forms. Generally use box-shaped structure.


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