Rotary overhead line stabilizer

Abstract

The invention discloses a rotary overhead line autostabilizer, relates to an overhead line autostabilizer capable of automatically improving the stability of an overhead line according to the wind velocity, and aims at overcoming the problem of poor vibration absorption effect due to the fact that an existing antivibrator absorbs vibration energy of a lead in a damping vibration manner. A housing of the rotary overhead line autostabilizer is a hollow cylinder; a blow-off nozzle is left in the side surface of the cylinder; a wire clamp is in a semi-cylindrical structure; the wire clamp is connected with the housing through a connecting sheet; an inertia wheel is a disk with a center hole; a rotating shaft is located at the center of the inertia wheel; the inertia wheel rotates around the rotating shaft; two ends of the rotating shaft are fixed at the circle centers of two ends of the housing respectively; a plurality of blades are rectangular sheets and are evenly distributed and fixed at the outer side of the inertial wheel; and two rotary overhead line autostabilizer bodies are respectively fixed at the left part and right part or the upper part and the lower part of the overhead line respectively when used. According to the rotary overhead line autostabilizer, the anti-differential vibration capacity of the overhead line can be improved under the action of the same wind speed.

Description

technical field [0001] The invention relates to an overhead line stabilizer which can automatically improve the stability of the overhead line according to the wind speed. Background technique [0002] Breeze vibrations of transmission lines and wind vibrations of transmission towers often cause extremely harmful faults such as broken strands and broken wires of transmission lines, node connection damage of poles and towers, and many times caused serious large-scale power outages. There are three forms of wind-induced conductor vibration of overhead transmission lines: breeze vibration, sub-gap vibration and galloping, among which the breeze vibration of conductors occurs most frequently and has the greatest impact. The breeze vibration of the wire is due to the periodic "Karman vortex" excitation behind the wire when the wind blows through the wire vertically, which generates a force on the wire perpendicular to the wire and the wind direction, causing the wire to generate ...

AI Technical Summary

Problems solved by technology

[0027] In order to overcome the defect that the existing anti-vibration device absorbs the vibration energy of the wire by damping vibration and cannot achieve a good vibration absorption effect, the present invention proposes a rotary overhead wire that increases the inertia of the overhead wire and reduces the self-resonant frequency to reduce the vibration amplitude of the wire. line stabilizer

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