Semi-active air pressure inerter-hydraulic damping combined type anti-galloping energy consumption device

Abstract

The invention discloses a semi-active air pressure inerter-hydraulic damping combined type anti-galloping energy consumption device which comprises an outer cylinder, an inner cylinder arranged in the outer cylinder and spacer bushes fixedly installed at the two ends in the inner cylinder, the spacer bushes divide the inner cylinder into a functional cavity and a middle cavity, and the functional cavity and the middle cavity are filled with compressed gas; a first baffle is arranged on one side of the first baffle, a second baffle is arranged on the other side of the first baffle, a flow blocking cavity is formed between the first baffle and the second baffle and filled with flow blocking liquid, a plurality of impellers are arranged between the first baffle and the second baffle, a second piston is arranged on the other side of the first baffle, a plurality of ball nuts are arranged on the second piston, and the second piston, the ball nuts and the rotating rod form a ball screw pair structure. Through combination of the air pressure inerter and the liquid damping, semi-active control is realized, and conductor galloping is efficiently inhibited. Compressed air circulation gaps in the functional cavity and the middle cavity are communicated with each other, the effect of an inerter damper is achieved, the weight of the whole device is greatly reduced, the design is reasonable, installation is convenient, and the effect is obvious.

Description

technical field [0001] The invention belongs to the technical field of cable dancing, and in particular relates to a semi-active air pressure inertial-hydraulic damping compound anti-galling energy-consuming device. Background technique [0002] With the rapid development of the economy, my country's demand for energy is increasing day by day, and my country has entered the peak period of power construction. Therefore, it is of great significance to maintain the stable and safe operation of transmission lines and ensure the normal supply of power energy. The transmission wire will gallop due to factors such as icing, wind excitation, and the structural parameters of the wire itself, which generally last for a long time, resulting in fatigue damage to the wire and fittings, wire whipping, wear, broken strands, breakage, shedding, etc., and sometimes even cause Vicious events such as power outage tripping of transmission lines and tilting or collapse of towers seriously threat...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a semi-active air pressure inertial capacity-hydraulic damping compound anti-galling energy-consuming device, and solve the constraints on the vibration of the existing power transmission wires by passive anti-galling under the action of environmental excitation The problem of limited capacity

Images