Magnetorheological damper and power transmission line anti-vibration device and anti-vibration method using same

Abstract

The invention discloses a socket clevis magnetorheological damper. The socket clevis magnetorheological damper comprises a cylinder body and a socket seat A connected above the cylinder body. A coil and a piston are arranged in the cylinder body. The space among the coil, the cylinder body and the piston is full of magnetorheological fluid. A shielding cover is arranged outside the cylinder body. When the magnetorheological damper is applied to a power transmission line anti-vibration device, the problems that an existing damper is simplex in anti-vibration frequency and not variable in damping are solved. The invention further discloses the power transmission line anti-vibration device using the socket clevis magnetorheological damper. The power transmission line anti-vibration device comprises a wire vibration collecting unit, a socket clevis magnetorheological damper adjustment unit and the socket clevis magnetorheological damper which are connected in sequence. The invention further discloses a power transmission line anti-vibration method. The power transmission line anti-vibration method specially includes the steps that a device system is initialized; the wire vibration collecting unit collects the vibration amplitude value and the frequency value and sends the data; a magnetorheological damper controller receives the wire vibration amplitude value and the frequency value and enables a current control circuit to work; and the adjustment function is realized, and therefore vibration is prevented.

Description

technical field [0001] The invention belongs to the field of state monitoring of power transmission and transformation equipment, and relates to a magneto-rheological damper, in particular to a magnetorheological damper for a bowl head hanging plate, and the invention also relates to anti-vibration of transmission lines using the magnetorheological damper The invention also relates to an anti-vibration method for a transmission line using the anti-vibration device for a transmission line. Background technique [0002] Under the action of the field wind, the transmission line will generate breeze vibration, and the long-term breeze vibration will seriously reduce the life of the wire, causing hardware to fall off, wire fatigue and broken strands, etc., which will endanger the normal operation of the power system. In order to weaken and eliminate the periodic vibration of the transmission line conductor under the action of breeze, the usual practice is to install an anti-vibra...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a magneto-rheological damper for a bowl-head hanging plate, which can be used in the anti-vibration device of the power transmission line, and solves the problem that the anti-vibration hammer has a single anti-vibration frequency and the damping is not variable

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