Active anti-galloping executing mechanism of overhead power transmission line

A technology of overhead transmission lines and actuators, applied in the direction of mechanical vibration attenuation devices, etc., can solve the problems of lack of control ability and limited application range of anti-dancing devices, and achieve the effect of large resistance and preventing galloping

Inactive Publication Date: 2014-04-30
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These passive anti-dance devices are limited in scope of application due to their own lack of regulation

Method used

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  • Active anti-galloping executing mechanism of overhead power transmission line
  • Active anti-galloping executing mechanism of overhead power transmission line
  • Active anti-galloping executing mechanism of overhead power transmission line

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Experimental program
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Embodiment Construction

[0021] The invention provides an active anti-dance executive mechanism for overhead power transmission lines, which will be described in detail below in conjunction with the accompanying drawings and specific examples.

[0022] The shape of the first pendulum and the second pendulum of the active anti-dancing actuator of the present invention adopts a cylindrical shape. Under the same situation of the swing arm, environmental conditions, materials and rotating speed, the cylindrical pendulum is faster than the spherical pendulum in the swing process. The air resistance encountered in the wire is greater, and it can more effectively prevent the dancing of the wire during the working process.

[0023] The structure of the active anti-dance actuator of the overhead transmission line of the present invention is as follows: figure 1 As shown, the driving gear 1 meshes with the rack 2, the rack 2 meshes with the first driven gear 5 and the second driven gear 6 on the left and right ...

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PUM

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Abstract

The invention discloses an active anti-galloping executing mechanism of an overhead power transmission line, and belongs to the technical field of power transmission line safety protection. The active anti-galloping executing mechanism of the overhead power transmission line comprises a stepping motor, a driving gear, a rack, a first driven gear, a second driven gear, a first transmission shaft, a second transmission shaft, a first pendulum bob and a second pendulum bob. Rotation motions of the driving gear are transmitted by the adoption of the rack, the design idea that one rotation motion is finally converted into two symmetrical rotation motions is realized, the conductor galloping conditions can be monitored in real time according to conductor acceleration signals when galloping of the overhead power transmission line is restrained, and the motion amplitude of the pendulum bobs can be adjusted according to the conductor galloping amplitude. The cylindrical pendulum bobs are adopted, so that in the working process, resistance is large, and therefore conductor galloping is more effectively prevented.

Description

technical field [0001] The invention relates to an active dance prevention executive mechanism for an overhead power transmission line, which belongs to the technical field of power transmission line safety protection. Background technique [0002] In freezing rain, sleet or windy weather, a layer of uneven ice is easy to form on the surface of the transmission line, resulting in a non-circular cross-section of the transmission line. When the horizontal wind blows on the transmission line, a certain Aerodynamic force, under certain conditions, induces low-frequency (0.1-3Hz) and large-amplitude (up to 10m or more) self-excited vibration of the transmission line, which is called wire galloping. Due to the low frequency, large amplitude and long duration of wire galloping, the transmission line will generate a large amount of energy when it vibrates, resulting in the risk of broken bones and wires, and may even cause the tower to collapse. At the same time, in the process of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/14
Inventor 郭泽荣黄建花吴成智芮静敏杨新龙
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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