Buffer and damping device for high-speed railway contact line

Abstract

The invention discloses a high-speed rail contact line buffer and damping device, comprising a left pin head, a first left end cover, a left spring, a left nut, a second left end cover, a left piston rod, a piston, a right piston rod, and a second right end cover , connecting body, right spring, right nut, retaining ring, right pin head, cylinder barrel, shell and connecting pipe. Through the innovative structural design of the present invention, on the one hand, when the high-speed rail contact line vibrates or dances, in a high-speed rail contact line buffer and damping device, the working oil in the left and right working chambers realizes relative flow through the annular flow channel, On the other hand, when the high-speed rail contact line is subjected to an impact load, the left and right pins of a high-speed rail contact line buffer and shock absorber will reduce the peak value of the impact load by stretching or compressing the spring. Improve the stress condition of the high-speed rail contact line. The invention can greatly improve the cushioning and damping performance of the high-speed rail contact line, fully guarantee the product quality, improve the reliability of the product, and have wide application prospects.

Description

technical field [0001] The invention relates to a buffer and shock absorbing device, in particular to a high-speed rail contact line buffer and shock absorbing device, which belongs to the technical field of buffer, shock absorbing and electromechanical. Background technique [0002] With the rapid development of my country's high-speed rail, higher requirements have been put forward for the reliability of high-speed rail operation. We know that high-speed rail receives power from the power grid through the high-speed rail contact wire and pantograph to drive high-speed rail operation. The high-speed rail contact line has a certain sag in actual installation. When the high-speed rail is running, the pantograph will lift the high-speed rail contact line, causing the high-speed rail contact line on the front side of the pantograph to be impacted and the high-speed rail contact line on the rear side to vibrate On the one hand, this kind of shock and vibration will reduce the re...

AI Technical Summary

Problems solved by technology

The high-speed rail contact line has a certain sag in actual installation. When the high-speed rail is running, the pantograph will lift the high-speed rail contact line, causing the high-speed rail contact line on the front side of the pantograph to be impacted and the high-speed rail contact line on the rear side to vibrate On the one hand, this kind of shock and vibration will reduce the reliability of the contact between the high-speed rail contact wire and the pantograph, and increase the risk of power failure of the high-speed rail; on the other hand, this shock and vibration will also reduce the The service life of the conductive slider

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