FIELD: double-girder crane.
SUBSTANCE: invention refers to a double-girder crane with a number of supports. The crane contains main girders, a lifting mechanism, a traveling gear and an electric control system. The main girders are represented by the upper and the lower girder. Each of them has different sections and is a high narrow built-up girder that is formed by three box girders, and the lifting mechanism contains a number of lift units. Each of these units is connected to a number of supports that are put simultaneously in motion with the help of the electric control system. The device for cable arrangement is installed on the lift units. This device contains an integrated connection multi-layer rerolling system. The traveling gear of the main gird is represented by a bidirectional self-moving mechanism that is situated at both ends of the base plate of the lower main girder.
EFFECT: augmentation of the crane capacity.
5 cl, 16 dwg
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