Horizontal-moving device for mounting cable saddle

Abstract

The invention relates to a method or equipment for erecting or assembling a bridge, in particular to a horizontal-moving device for mounting a cable saddle. The horizontal-moving device is erected ontwo portal frames of a cable tower and comprises a cross beam and an electric hoist, and the electric hoist is connected to the lower portion of the cross beam. The horizontal-moving device is characterized in that guiding grooves are fixedly formed in the upper portions of the two portal frames and are mutually parallel, sliding blocks are fixedly connected to the lower portions of the two ends of the cross beam correspondingly, and the two sliding blocks are in sliding fit with the guiding grooves; and traction mechanisms used for pulling the cross beam to slide along the guiding grooves arefixedly arranged on the two portal frames correspondingly. According to the horizontal-moving device for mounting the cable saddle, the sliding form between the cross beam and the portal frames is changed from rolling friction into sliding friction, thus the friction force between the cross beam and the portal frames is increased, the influence of inertia during moving of the cross beam is reduced, and the effect that the mounting position of the cable saddle is positioned simply and precisely is achieved; and meanwhile, the structure of the cross beam is simplified, and the cost and mountingdifficulty of the cross beam are reduced.

Description

technical field [0001] The invention relates to a method or equipment for erecting or assembling a bridge, in particular to a translation device installed on a cable saddle. Background technique [0002] The suspension bridge consists of suspension cables, cable towers, anchorages, suspenders and bridge deck systems. There are cable saddles fixed on the top of the cable towers. The cable saddles are specially designed for the suspension cables to bypass the tower top and make the main cable smooth to change the direction of the structure. [0003] Before hoisting the cable saddle, it is first necessary to erect two door frames on both sides of the cable tower, and fix the two door frames to the cable tower, and then install the translation device installed on the cable saddle on the two door frames. The existing cable saddle installation and translation device generally adopts a crane, including a beam and an electric hoist. The electric hoist is fixed below the beam. Rail...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above-mentioned prior art is that in the process of driving the crossbeam by the motor, due to the small friction between the pulley and the guide rail, the braking time is long when affected by the inertia, and the precise positioning of the cable saddle often needs to be adjusted. It takes a long time to ensure that the cable saddle stops at a position convenient for installation several times

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