Power transmission line pre-twisted vibration damper

Abstract

The invention discloses a power transmission line pre-twisted vibration damper, which comprises a wire clamp, a connecting rod, a steel strand and a damper body, the wire clamp is installed on the upper portion of the connecting rod, first connectors are arranged at the two ends of the wire clamp, a flaring cover is arranged at one end of each first connector, a plurality of second elastic pieces are arranged on the inner wall of each flaring cover, one end of the steel strand is fixedly connected with the first connectors, the steel strand is located in the middle of each second elastic piece, and the other end of the steel strand is connected with the hammer body. The first connectors are arranged at the two ends of the connecting rod, the flaring covers are arranged at one ends of the first connectors, the multiple sets of second elastic pieces are arranged on the inner walls of the flaring covers, the second elastic pieces are used for absorbing vibration when the steel strand vibrates, and vibration of the wire is relieved.

Description

technical field [0001] The invention belongs to the technical field of circuit erection, in particular to a pre-twisted anti-vibration hammer for transmission lines. Background technique [0002] The pole position of the high-voltage overhead line is relatively high, and the span is relatively large. When the wire is subjected to wind force, it will vibrate. When the conductor vibrates, the working conditions are the most unfavorable where the conductor is suspended. Due to multiple vibrations, the wire will be fatigued and damaged due to periodic bending. When the span of the overhead line is greater than 120 meters, an anti-vibration hammer is generally used for anti-vibration. The installation position of the anti-vibration hammer should be determined according to the construction requirements. After the anti-vibration hammer is installed, under the action of inertia, it can produce a motion opposite to the vibration phase of the wire, so that the vibration of the wire...

AI Technical Summary

Problems solved by technology

[0003]The existing pre-hinged anti-vibration hammer is generally composed of a heavy hammer with a certain quality, high-strength zinc-steel strands and clamps with high elasticity and high strength. The heavy hammer is suspended at both ends of the steel strand. When the conductor vibrates, the elastic steel strand absorbs part of the energy, but its absorption capacity is limited, resulting in a general anti-vibration effect of the anti-vibration hammer. When the conductor shakes a lot, The anti-vibration effect still has certain limitations

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