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Rotatable damping-type spacer rod

A technology of rotation damping and spacer rods, which is applied in the field of power transmission lines, can solve the problems of falling, spacer rods unable to buffer the impact force of disconnection, and wire extraction, etc., to reduce the length of the drop, alleviate the tension oscillation effect of disconnection, and clear structural force transmission Effect

Pending Publication Date: 2018-03-27
SHAOXING DAMING ELECTRIC POWER DESIGN INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When using a conventional spacer, the instantaneous impact force when the wire breaks will easily cause the wire to be pulled out from the spacer, and the conventional spacer is a rigid structure, and when its two ends are fixedly connected to the wire, the spacer cannot buffer the broken wire The impact force, in serious cases, will cause the spacer bar to break and fall, which is likely to cause a major safety accident

Method used

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  • Rotatable damping-type spacer rod
  • Rotatable damping-type spacer rod
  • Rotatable damping-type spacer rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The rotatable damping spacer 2 includes duckbill-shaped end 1 21 and end 2 26 for connecting with the wire 1 and a central rod 25 connecting the end 1 21 and end 2 26 . The central pull rod 25 is a hollow cylinder with both ends closed, and an opening is arranged in the center of the end surface of its upper end, and the end one 21 extends into the center pull rod 25 through the opening and is connected with an intermediate connector 22 . The intermediate connecting piece 22 is a rod with a certain length, and its other end is connected with a blocking piece 24 , which is slightly smaller than the opening and can rotate freely in the center pull rod 25 . A compression spring 23 is arranged between the upper end surface of the blocking piece 24 and the center rod 25 . It is best to keep the blocking piece 24 parallel to the end surface, so that the compression spring 23 between the two is evenly stressed. The second end 26 is fixedly connected to the other end surface o...

Embodiment 2

[0028] The difference between the present embodiment and the first embodiment is that the second end 26 is directly fixedly connected to the end surface of the central rod 25 .

Embodiment 3

[0030] The difference between this embodiment and Embodiment 1 is that intermediate rotating parts are respectively connected between the first end 21 and the intermediate connecting piece 22, between the second end 26 and the center rod 25, and the two intermediate rotating parts The end is rotatably connected with the first end 21 or the second end 26 , the intermediate connector 22 or the central pull rod 25 .

[0031] Based on the above, the present invention provides a rotatable damping spacer 2, by extending the end 21 deep into the inside of the center rod 25, forming a stopper 24 at the end and between the stopper 24 and the end 21 The compression spring 23 is provided. When the wire 1 breaks, the spacer bar rotates, which can convert the tension on the wire 1 into elastic potential energy, thereby greatly reducing the tension oscillation effect of wire breakage. The structure is simple and easy to use.

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Abstract

The invention provides a rotatable damping-type spacer rod, and the spacer rod comprises two ends which are connected with a wire. A central pull rod is disposed between the two ends in a connected manner. The center of one end face of the central pull rod is provided with an opening, and one end stretches into the central pull rod through the opening, wherein the end part is provided with a blocking piece which is not less than the opening. A pressure spring is disposed between the blocking piece and the end face of the central pull rod. The other end can be rotatingly or fixedly connected tothe other end face of the central pull rod. The spacer rod is simple in structure, is convenient to manufacture, can effectively iron out the defects that a conventional spacer rod is too large in bending moment when the line of a fixed end of the conventional spacer rod is broken and the buffering of the tension of the broken line is not good.

Description

technical field [0001] The invention relates to the field of power transmission lines, in particular to a rotatable damping spacer. Background technique [0002] The longitudinal unbalanced force of transmission lines is an important design load, and line disconnection is one of the factors that produce longitudinal unbalanced forces. There are mainly the following reasons for line disconnection: material fatigue, lightning fusing, ice-covered dancing, foreign object collision, strong wind, hardware wear, etc. [0003] When the wire is broken, due to the sudden release of the tension of the wire, the point of the broken wire is driven to vibrate along the line, and spread rapidly along the wire to a distance. After the wire is broken, the wire is initially excited by the energy released when the wire is broken, and performs nonlinear free vibration. According to relevant experimental research conclusions, the instantaneous dynamic effect of line disconnection has an amplif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/14
CPCH02G7/14
Inventor 李攀峰冯炳卢笛吕亮张锴玮边飞挺童莹
Owner SHAOXING DAMING ELECTRIC POWER DESIGN INST