A vibration-absorbing structure for under-vehicle equipment of railway vehicles

Abstract

The invention relates to a vibration absorption structure for railway vehicle bottom suspension equipment. The vibration absorption structure comprises a vibration absorption box fixedly covering theouter surface of the body of the bottom suspension equipment; the vibration absorption box comprises an inner metal layer, a rubber damping layer and an outer counterweight metal layer connected intoa whole inside out sequentially; hanging elements penetrating the rubber damping layer and the outer counterweight metal layer are mounted on the inner metal layer, and used for hanging the bottom suspension equipment on the body of the railway vehicle. Compared with the prior art, the vibration absorption structure has the advantages that, with the vibration absorption box mounted on the outer side of the bottom suspension equipment, vibration transmitted to the vehicle floor from the bottom suspension equipment can be reduced effectively, and meanwhile, vibration energy of the bottom suspension equipment can also be absorbed, so that running comfort level of the vehicle can be improved, fault probability within the service cycle caused by concentration of the vibration energy of the bottom suspension equipment can be reduced greatly, and running safety of the vehicle can be improved greatly.

Description

technical field [0001] The invention belongs to the technical field of vibration control of railway vehicles, and relates to a vibration-absorbing structure for equipment under the railway vehicles. Background technique [0002] In recent years, power dispersion technology has been widely used in high-speed trains. Compared with power-concentrated high-speed trains, power dispersion technology can achieve high-power traction of trains, reduce the impact of vehicles on the line and reduce wheel-rail noise. Power dispersion technology also means that more traction, braking and other off-vehicle equipment need to be installed on the vehicle body, such as auxiliary converters, traction converters, etc. Motivation source. In order to reduce the vibration energy transmitted from the under-car equipment to the car body, most of the under-car equipment of high-speed trains adopt elastic vibration-isolation components made of rubber parts. [0003] The vibration of equipment under ...

AI Technical Summary

Problems solved by technology

Most of the research in the past has been carried out around the vibration suppression of the car body. These studies have effectively reduced the local structural vibration of the car body, but at the same time, the vibration of the equipment is intensified, and the concentration of vibration energy of the equipment under the car will greatly increase the failure probability during the service period, seriously affecting the railway. Vehicle Operational Safety

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