DOUBLE MAIN GIRDER AND MULTI HANGING POINT CRANE

摘要

A double girder and multi hanging point crane comprises main girders, a lifting mechanism, a translating mechanism (4) and an electric control system, characterized in that said main girders are double main girders (1,2) highly and lowly arranged, each main girder having variable sections and being high and narrow compound girders composed of three-box-typed main girders; the lifting mechanism is composed of multi sets of hoisting systems (3), each set of hoisting systems (3) respectively connected to and controlling multi hanging points and synchronously driving above all hanging points through the electric control system; a rope arranging mechanism is arranged at the hoisting systems (3), and a mono-connecting and multiplayer twisting rope system is adopted; the translating mechanism (4) is main girder bidirectionally self-translating mechanism arranged at the two ends of the lower main girder; the electric control system is an electric control system of multi hanging point crane hyperstatic system.