Steering device and fall prevention method for tension setting-out construction

Abstract

The invention relates to a steering device for tension pay-off construction. The device comprises a truss and a pulley frame positioned in the truss, the truss is composed of four inclined supportingfeet and four fixing plates fixed to the upper ends of the inclined supporting feet. The other ends of the four fixing plates are fixed with each other; the middle part of the tackle frame is rotationally connected with a tackle; an adjusting mechanism for adjusting the angle of the pulley frame is arranged at the upper end of the pulley frame; an anti-falling mechanism is arranged below the pulley frame; the anti-falling mechanism comprises a bearing assembly used for bearing the tackle frame and a fixing assembly used for fixing the tackle frame to the bearing assembly. The bearing assemblycomprises four sliding plates connected to the four different inclined supporting feet in a sliding mode in the length direction of the inclined supporting feet and a bearing plate connected with thefour sliding plates in a sliding mode at the same time. The steering device has the effects of improving the safety factor, protecting the cable from being broken easily, and automatically generatingan early warning when the cable is damaged.

Description

technical field [0001] The invention relates to the technical field of tension setting-out construction, in particular to a steering device and a fall prevention method for tension setting-out construction. Background technique [0002] Most of the large hydropower stations in Southwest China are located in deep mountains and canyons. Correspondingly, more and more bookstore lines are built in high mountains. During the whole process of wire erection during tension pay-off, the erection construction method is to keep the deployed wire at a certain tension and leave the ground in an overhead state. As the most important process in the traditional construction method of overhead transmission line construction, tension setting-out construction often encounters restrictions due to conditions such as terrain height, length of the line-setting section, and number of times the wire passes over the trolley. It is very difficult to select the tension field along the line. Difficulty...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: Although the position of the connection point between the second rope and the truss is adjusted, the heading angle of the tackle is adjusted on the basis of adjusting the pitch angle of the tackle, so that the angle between the chute and the cable decreases rapidly. It is as small as the safe range, avoiding the damage of the leading rope and the tackle, and eliminating potential safety hazards, but the first rope and the second rope are at high altitude, exposed to the wind and the sun, and the first rope and the second rope are the main load-bearing objects of the tackle, so For a long time, the first rope and the second rope may break, and when the pulley falls downward, it is easy to injure passers-by. At the same time, it drives the cable to slide downward. lower

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