CN202840430U

CN202840430U - Ground wire vibration damper for +/-500kV lines

Info

Publication number: CN202840430U
Application number: CN 201220333345
Authority: CN
Inventors: 任成林; 鲁景星; 曹惠潮; 舒礼臣; 王银春; 孔德春; 张静华; 黄良忠; 李育兵; 朱长青; 杨伦; 刘璐
Original assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group; Super High Transmission Co of China South Electric Net Co Ltd; Jiangsu Shuanghui Power Development Co Ltd
Current assignee: Southwest Electric Power Design Institute Co Ltd of China Power Engineering Consulting Group; Super High Transmission Co of China South Electric Net Co Ltd; Jiangsu Shuanghui Power Development Co Ltd
Priority date: 2012-07-10
Filing date: 2012-07-10
Publication date: 2013-03-27
Anticipated expiration: 2022-07-10

Abstract

The utility model provides a ground wire vibration damper for +/-500kV lines. The ground wire vibration damper can be used to increase the grid force of a wire clamp on a wire and prevent hammerheads from being disconnected from a steel stranded wire. The ground wire vibration damper for +/-500kV lines comprises two hammerheads and a wire clamp, wherein a steel stranded wire is connected between the two hammerheads, the wire clamp is composed of a wire clamp body and a wire clamp cover plate, one end of the wire clamp cover plate is connected with a hinge pin of the wire clamp body, the other end of the wire clamp cover plate is connected with a bolt of the wire clamp body, a wire stranding hole is opened in the wire clamp body and is sheathed on the steel stranded wire, the steel stranded wire is riveted to the two hammerheads, and the centers of a wire clamp head between the wire clamp body and the wire clamp cover plate, the hinge pin and the wire stranding hole are collinear. The ground wire vibration damper for +/-500kV lines can be quickly and conveniently installed on a wire, is easy to produce and process and applicable to a wide range of transmission lines, and can achieve good effect in preventing the vibration of wires.

Description

± 500kV circuit property-line stockbridge damper

Technical field

The utility model relates to hinge type stockbridge damper that a kind of ± 500kV circuit uses.

Background technology

Stockbridge damper is the protective hardware that is used for preventing the wire aeolian vibration on the aerial high-voltage power transmission line.In order to prevent and to alleviate conductor vibration to its damage that causes, generally hang wire clamp near the stockbridge damper of installation some, when the wire vibration-generating, stockbridge damper also moves up and down, produce an even opposite effect power asynchronous with conductor vibration, the amplitude of wire can be reduced, even the vibration of wire can be eliminated.Existing hinge type stockbridge damper comprises two tups, between two tups, be connected with steel strand wire, in the middle part of steel strand wire, be provided with and comprise hinged wire clamp,, wire clamp increased vibration, the steel strand wire of wire but putting forth effort not enough large to holding of wire insecure with being connected of tup and cause running and hammer phenomenon into shape, therefore need to be improved existing hinge type stockbridge damper structure, with improve wire in vibration reliability.

Summary of the invention

The utility model provides a kind of ± 500kV circuit property-line stockbridge damper strengthens wire clamp and holding of wire is puted forth effort and prevent from running on the steel strand wire hammer.

For achieving the above object, the utility model is taked following technical scheme:

± 500kV circuit property-line stockbridge damper, comprise two tups and wire clamp, be connected with steel strand wire between two tups, wire clamp is comprised of wire clip body and wire clamp cover plate, and an end of wire clamp cover plate is connected with the wire clip body joint pin, and the other end of wire clamp cover plate is connected with the wire clip body bolt, be provided with the twisted wire hole at wire clip body, the twisted wire borehole jack is connected on the steel strand wire, steel strand wire and two tup riveted joints, the center conllinear in the wire clamp between wire clip body and the wire clamp cover plate, joint pin and twisted wire hole.

Above-mentioned stockbridge damper is a kind of hinge wire clamp bolt matable stockbridge damper, and wire clamp adopts the joint pin articulated structure, so that wire clip body and wire clamp cover plate need not to use any specific purpose tool can realize the installation of stockbridge damper on wire, is suitable for the work high above the ground needs.The center conllinear in wire clamp, joint pin and twisted wire hole distributes, when wire clamp is stressed, the center of wire clamp becomes a stress point of lever, bolt between wire clip body and the wire clamp cover plate connects that screwing force by bolt passes to wire clamp and joint pin comes clamping wire, thereby reaches the effect of secure wires.Two tups are fixing with the end riveted joint of steel strand wire respectively, effectively prevented from running hammer.

Quick for installation convenience, the production and processing of the utility model on wire is simple, and applicable transmission line is wide, and preferably effect has been played in the vibration that prevents wire.

Description of drawings

Fig. 1 is the front view of embodiment 1;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the front view of embodiment 2;

Fig. 4 is the A-A cutaway view of Fig. 3.

The large tup of description of reference numerals: 1-; The little tup of 2-; The 3-wire clamp; The 31-wire clip body; 32-wire clamp cover plate; The 33-joint pin; 34-twisted wire hole; The 35-wire clamp; 4-the first spacing; 5-the second spacing; The 6-steel strand wire; The 7-bolt connects; The 71-hex nut; The 72-spring washer; The 73-plain washer; The 74-hex bolts; 8-high-strength aluminum alloy pin; The 9-aluminium hydraulic pressed connecting pipe.

Embodiment

Below in conjunction with drawings and Examples the utility model content is described further.

Embodiment 1

As shown in Figure 1, 2, the present embodiment is ± 500kV circuit FRJ-1318 stockbridge damper to be applicable to LBGJ-100-20AC and LBGJ-120-20AC ground wire that external diameter is respectively 13.0mm and 14.25mm.The present embodiment comprises large tup 1, hand hammer head 2 and wire clamp 3, and the width of wire clamp 3 is 50mm, and large tup 1 and hand hammer head 2 first spacings 4 are 429mm, and wire clamp 3 center lines are 240mm with large tup 1 second spacing 5.Be connected with steel strand wire 6 between large tup 1 and the hand hammer head 2, steel strand wire 6 are 1X19-11.0-1570-A-YB/T 4165-2007, and length is 381mm.Large tup 1 and hand hammer head 2 are made by HT150 material, hot dip galvanizing process.Wire clamp 3 is comprised of wire clip body 31 and wire clamp cover plate 32, wire clip body 31 and wire clamp cover plate 32 all adopt the metal pattern gravitational casting to form, one end of wire clamp cover plate 32 and wire clip body 31 are hinged by the joint pin 33 of 1Cr18Ni9 material, and joint pin 33 is 70mm with the centre-to-centre spacing of steel strand wire 6; The other end of wire clamp cover plate 32 is connected 7 with wire clip body 31 by the bolt that M12 hex nut 71, φ 12 spring washers 72, φ 12 plain washers 73 and M12X15 hex bolts 74 make up; Be provided with twisted wire hole 34 at wire clip body 31, twisted wire hole 34 and steel strand wire 6 socket and rivetings, form the center collinear structure in wire clamp 35, joint pin 33 and twisted wire hole 34, the screwing force of bolt connection 7 passes to wire clamp 35 under leverage and joint pin 33 comes clamping wire, thereby reaches the effect of secure wires.The riveting riveted joint is turned over by φ 6.3X48 high-strength aluminum alloy pin 8 respectively in the two ends of steel strand wire 6, neither damages steel strand wire 6, can satisfy again holding of wire clamp 3 and put forth effort requirement.Steel strand wire 6 two ends put aluminium hydraulic pressed connecting pipe 9, are compacted into hexagon, and large tup 1 and hand hammer head 2 inner chambers are inserted in the end of aluminium hydraulic pressed connecting pipe 9, fix with anchorage style.

When stockbridge damper and ground wire are installed, unclamp bolt and connect 7, wire clamp cover plate 32 rotates relative to wire clip body 31 along joint pin 33, wire clamp 35 opens, ground wire is fit in the wire clamp 35, wire clamp cover plate 32 turned to wire clip body 31 snap together, be bolted again 7 wire clip body 31 and wire clamp cover plate 32 is fastening.

Embodiment 2

Shown in Fig. 3,4, the present embodiment is with the difference of embodiment 1: the opening direction of wire clamp is opposite.

Claims

1. ± 500kV circuit property-line stockbridge damper, comprise two tups and wire clamp, be connected with steel strand wire between two tups, wire clamp is comprised of wire clip body and wire clamp cover plate, one end of wire clamp cover plate is connected with the wire clip body joint pin, the other end of wire clamp cover plate is connected with the wire clip body bolt, be provided with the twisted wire hole at wire clip body, the twisted wire borehole jack is connected on the steel strand wire, it is characterized in that: described steel strand wire and two tup riveted joints, the center conllinear in the wire clamp between described wire clip body and the wire clamp cover plate, joint pin and twisted wire hole.

2. as claimed in claim 1 ± 500kV circuit property-line stockbridge damper is characterized in that: the riveting riveted joint is turned over by high-strength aluminum alloy pin and two tups respectively in the two ends of described steel strand wire.

3. as claimed in claim 1 ± 500kV circuit property-line stockbridge damper, it is characterized in that: the two ends of described steel strand wire are socketed with respectively aluminium hydraulic pressed connecting pipe, and aluminium hydraulic pressed connecting pipe is pegged graft into two tups; Aluminium hydraulic pressed connecting pipe and steel strand wire are that the hexagon crimping is fixed, and aluminium hydraulic pressed connecting pipe and two tups are anchoring.

As claim 1-3 arbitrary described ± 500kV circuit property-line stockbridge damper, it is characterized in that: described wire clip body and wire clamp cover plate all adopt the metal pattern gravitational casting to form.