Bridge swivel system with pulley structures

Abstract

The invention relates to a bridge swivel system with pulley structures. The bridge swivel system with the pulley structure comprises a lower bearing platform structure, a rotary table used for supporting a bridge to be rotated and a swivel traction device used for driving the rotary table to rotate on the lower bearing platform structure, the swivel traction device comprises at least one tractioncable coiled on the rotary table, each traction cable is connected with a traction mechanism, the traction mechanisms comprise pulley structures connected with the corresponding traction cables and traction power units connected with the free ends of traction ropes of the pulley structures, and each pulley structure comprises at least one movable pulley. According to the bridge swivel system, dueto the arrangement of the pulley structures, the traction force required by traction power units can be obviously reduced on the basis of the characteristics of the movable pulleys in the pulley structures, the swivel traction equipment can be correspondingly miniaturized so as to be convenient to arrange on the lower bearing platform structure, and then the design and the construction of a bridgeswivel are facilitated.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a bridge swivel system provided with a pulley structure. Background technique [0002] In recent years, with the speed-up of existing railways and a large number of new high-speed railways put into operation, the railway department has higher and higher requirements for the safety of cross-rail bridge construction, and the situation of bridge swivel construction is becoming more and more common. It is not uncommon for bridges with a capacity of more than 30,000 tons to rotate to create a world record. [0003] As the tonnage of the swivel bridge increases, the traction force of the corresponding swivel required is also increasing, and the swivel traction equipment configured is also becoming larger and larger, which brings a lot of inconvenience to the design and construction. Contents of the invention [0004] The embodiment of the present invention re...

AI Technical Summary

Problems solved by technology

[0003] With the increasing tonnage of swivel bridges, the required swivel traction force is also increasing, and the swivel traction equipment is also becoming larger and larger, which brings a lot of inconvenience to the design and construction.

Images