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Partition rod with damping

A spacer and damping technology, which is used in the installation of cables, devices for maintaining the distance between parallel conductors, electrical components, etc., can solve the problems of long occurrence time, difficult energy conversion and utilization of resonance structures, and large differences in frequency domain characteristics. , to achieve the effect of improving self-damping, improving wind resistance and anti-vibration ability, and increasing the dancing threshold.

Pending Publication Date: 2020-04-17
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the breeze vibration and ice-covered galloping generally have obvious vertical vibration characteristics, especially the breeze vibration, which occurs for a long time, but because it belongs to mechanical energy, and the frequency domain characteristics of the two are quite different, it is difficult for general resonance structures to transform their energy. and use

Method used

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Experimental program
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Embodiment 1

[0029] Partical damping technology uses the friction and collision of tiny particles in a closed space to consume the mechanical energy of system vibration and convert it into heat energy inside the particles or energy in other forms. As passive damping, particle damping technology can effectively increase structural damping performance, and has very good reliability, environmental adaptability, fatigue characteristics, high temperature resistance and economy, and the additional mass to the main structure is small, and it is more convenient to use. At present, the particle damping technology is widely used in mechanical, aerospace and civil structural engineering, but the application in transmission lines is still less, so there is a large room for expansion in the research and application of collision damping technology with particle vibration reduction.

[0030] Depend on Figure 1 to Figure 3 It can be seen that through reasonable design, the vibration-damping structure can...

Embodiment 2

[0033] This embodiment takes the four-split spacer as an example, other forms of spacer, such as 2, 3, 6, 8, etc., can refer to this design case.

[0034] The four-split spacer includes: a wire clamp 1 for clamping a wire 2 , a connecting rod 3 , a frame body 4 , a particle damping filling cavity 5 , a twist limiting hole 6 , a connecting bolt 7 and filling particles 8 .

[0035] The wire clamp 1 is fixedly connected with the frame body 4 through the connecting rod 3 . The frame body 4 is provided with a particle damping filling cavity 5 , and the filling particles 8 are located in the particle damping filling cavity 5 and do not fill the particle damping filling cavity. The material of the filling particles 8 is a rigid material, and the size, quantity and filling rate of the filling particles are set according to the vibration-absorbing frequency. The selection of the size and filling rate of the filling particles 8 is adapted to the cavity size of the particle damping fill...

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Abstract

The invention provides a partition rod with damping. The partition rod comprises a conducting wire clamp for clamping a conducting wire, a frame body and filling particles, wherein the conducting wireclamp is fixedly connected with the frame body, the frame body is provided with a hollow particle damping filling cavity, and the filling particles are located in the particle damping filling cavityand do not fill the particle damping filling cavity. According to the invention, by introducing a particle damping technology, the damping of a conducting wire-shock absorber system is increased, thevibration mechanical energy of a conducting wire is fully consumed, and the conducting wire and auxiliary fittings are protected.

Description

technical field [0001] The invention relates to the field of disaster prevention and mitigation of power grids, in particular to a spacer bar with damping. Background technique [0002] Wind-induced vibration of transmission lines is one of the common phenomena of overhead conductors, mainly including breeze vibration (5-120 Hz), sub-gap oscillation (1-3 Hz), ice galloping (0.1-3 Hz) and wind deflection. Among them, the breeze vibration and ice-covered galloping generally have obvious vertical vibration characteristics, especially the breeze vibration, which occurs for a long time, but because it belongs to mechanical energy, and the frequency domain characteristics of the two are quite different, it is difficult for general resonance structures to transform their energy. and exploit. Contents of the invention [0003] In order to overcome the defects of the prior art, a spacer bar with damping is provided. [0004] The purpose of the present invention is achieved throug...

Claims

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Application Information

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IPC IPC(8): H02G7/12H02G7/14
CPCH02G7/125H02G7/14
Inventor 杨知赵彬张立春费香泽严波操松元夏令志彭江彭波刘敬华王剑杨加伦
Owner CHINA ELECTRIC POWER RES INST
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