Rotatable erection crane for assembling steel box girder
A steel box girder and rotary technology, which is applied in the field of traffic engineering, can solve the problems such as the inability to apply large-tonnage steel box girder, spanning valleys and flood areas, demanding ground conditions, and poor crane stability, so as to achieve a stable lifting process. High efficiency, high adaptability, and the effect of improving construction efficiency
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[0024] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0025] refer to figure 1 A rotatable deck crane for assembling steel box girders, comprising a walking system 3, a main truss system 1, a lifting system 2 and an anchoring system 4, the main truss system 1 is set on the installed steel box girder 6, the main The bottom of the truss system 1 is the walking system 2, and the upper part of the main truss system 1 is the hoisting system 2. There is a longitudinal adjustment system between the main truss system 1 and the hoisting system 2, and a slewing spreader 2-4 is installed on the hoisting system.
[0026] refer to figure 2 , image 3 , Figure 4 , the main truss system 1 includes two pairs of diamond-shaped tru...
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