Normally closed quickly installed damping clamp

Abstract

The invention discloses a normally closed quickly installed damping clamp, which comprises a main clamp body, wherein one end of the main clamp body is hinged with a gland, and a locking pin is connected between the main clamp body and the other end of the gland; matched clamp plastic tiles are respectively arranged on the gland and the main clamp body, and corresponding semi-circular grooves are respectively arranged on the two clamp plastic tiles; the two semi-circular grooves are matched to clamp a lead, and a pawl is hinged onto the main clamp body through a torsion spring; and the front end of the pawl is buckled at the inner side of the back end of the gland, and the back end of the pawl tilts up. The damping clamp provided by the invention can be applied to damping spacers matched with bundle conductors in all voltage levels in domestic AC and DC transmission lines because of standard versatility, the clamp does not need to be disassembled when the spacers are installed, and a braking device can be used for automatically positioning. The damping clamp is accurate, safe and reliable.

Description

technical field [0001] The invention relates to the field of large-capacity, long-distance high-voltage transmission lines using more than two or four split conductors per phase conductor, and specifically belongs to a normally closed fast-installation damping clamp. Background technique [0002] Large-capacity, long-distance high-voltage transmission lines use more than two or four split wires per phase, and ultra-high voltage and ultra-high voltage transmission lines above 500kV use six or eight split wires per phase. In order to ensure the split wires, the wire spacing remains unchanged to meet the electrical performance, reduce the surface potential gradient and in the case of short circuit, the electromagnetic force will not be generated between the wire bundles to cause mutual attraction and collision; therefore, spacers are installed at a certain distance in the span to reduce Hazards to conductors caused by breeze vibration and sub-gap vibration. [0003] At present...

AI Technical Summary

Problems solved by technology

[0004] (1) The installation efficiency is low. The installation of the spacer is a high-altitude operation (the average height of the wire is 14m~24m), and the working environment is limited. low work efficiency

[0005] (2) The construction cost is high. When the spacer is installed, each clamp is repeatedly disassembled and installed twice, and the accessories are easy to fall off (closed pins, flat washers, pin shafts), and the loss of accessories is more than 5%.

[0006] Low installation efficiency, long construction period and increased construction costs

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