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Self-adaptive vibration damper

An anti-vibration hammer and self-adaptive technology, applied in the direction of mechanical vibration damping device, etc., can solve the problem of fatigue failure of the outlet of the wire clamp, and achieve the effect of eliminating wire vibration, solving the problem of wire galloping, and simple device structure.

Active Publication Date: 2020-09-08
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Interphase spacers are installed between different phase wires at unequal distances, which can effectively reduce the galloping of the wires, but fatigue damage often occurs at the outlet of the clamp

Method used

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  • Self-adaptive vibration damper
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  • Self-adaptive vibration damper

Examples

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as any limitation of the application, its application or uses. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0031] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, a...

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Abstract

The invention relates to a self-adaptive vibration damper, which comprises an inner cylinder, a tower side handle installed at one end of the inner cylinder, a pull rod arranged in the inner cylinder,a pull rod pulling disc installed at the top end of the pull rod, a line side handle installed at the bottom end of the pull rod, a reset spring used for resetting the pull rod, and a pull rod checkblock which is arranged on the inner wall of the inner cylinder and used for generating friction with the pull rod pulling disc, wherein a check block spring for resetting the pull rod check block isarranged on the pull rod check block. According to the invention, a hammering release method is adopted to eliminate vibration of a wire, the critical value of hammering is controlled by setting the angle of the friction surface of the pull rod check block structure, and the device does not frequently act when the tension of the wire is small.

Description

technical field [0001] The invention relates to an anti-galling (vibration) technology of a transmission wire, in particular to an adaptive anti-vibration hammer. Background technique [0002] Galloping of transmission wires is a ubiquitous natural phenomenon, which brings great damage to the safe operation of transmission lines. Although there are many anti-dancing measures that have played a certain role, galloping of wires occurs from time to time. [0003] The anti-vibration hammer is usually hung on the end of the wire to protect the tension clamp and the wire breakage at the exit of the suspension clamp. It is one of the protective fittings to prevent the wire from vibrating in the breeze. The test found that the anti-vibration hammer cannot meet the vibration suppression requirements of low-frequency vibration (below 30Hz). When the natural vibration frequency of the wire is close to the vibration frequency, the accumulation of low-frequency vibration energy will form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/14
CPCH02G7/14
Inventor 冯砚厅曾四鸣李文彬王勇吴国强李国维董国振
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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