A pre-twisted anti-galling damping spacer

Abstract

The invention relates to a pre-twisted anti-slip anti-dancing damping spacer. It includes a bracket and a wire clip, the wire clip is arranged at the end corner of the bracket for connecting the split wire, and the wire clip also includes a pre-twisted wire; the head end of the wire clip used to connect the split wire is hook-shaped, The back of the hook is provided with a positioning structure for positioning the pre-twisted wire; the tail end of the clamp is connected to the end corner of the bracket through a damping and limiting device; the lower part of the middle of the bracket is fixed Connect the herringbone pendulum device; the herringbone pendulum device includes a herringbone frame plate and a spherical pendulum, the top of the herringbone frame plate is fixedly connected to the lower frame in the middle of the bracket, the spherical The pendulum is fixedly connected to the ends of the two feet of the herringbone frame plate. The method of connecting the split wires of the present invention is improved to a pre-twisted wire connection method with a limit structure, which can be installed by hand, is convenient to install, has good reliability, and is easy to control the installation quality.

Description

technical field [0001] The invention relates to a spacer bar for ultra-high voltage and extra-high voltage transmission lines, in particular to a pre-twisted anti-skid and anti-galling damping spacer bar. Background technique [0002] For long-distance and large-capacity EHV and UHV transmission lines, two, three, four, six, eight or more split sub-conductors are used for each phase conductor. In order to meet the electrical performance, reduce the surface potential gradient, and in the case of a short circuit, the electromagnetic force will not be generated between the wire harnesses to cause mutual attraction, collision, whipping, or cause instantaneous relative movement, but the design distance can be restored after the accident is eliminated. , it is necessary to ensure that the spacing between the sub-conductors of the split wire harness remains unchanged. For this reason, spacers of appropriate specifications and quantities are installed at appropriate positions in the...

AI Technical Summary

Problems solved by technology

[0009] At present, there are many kinds of anti-dancing devices used at home and abroad, including anti-vibration hammers, spoilers, interphase spacers, detuned pendulum dampers, double pendulum anti-swing devices, etc., but due to structural reasons, their anti-swing The dancing effect has not reached the level of making the line safe, so it can be said that the effect is not ideal

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