Mass-adjustable integrated multi-dynamic vibration absorber for restraining rail vehicle from shaking

Abstract

The invention relates to a mass-adjustable integrated multi-dynamic vibration absorber for restraining rail vehicle shaking. The vibration absorber comprises a bearing frame fixedly connected with an edge beam at the bottom of a vehicle body and a mass-adjustable integrated vibration reduction structure transversely arranged in the bearing frame. The mass-adjustable integrated vibration reduction structure comprises two oppositely-arranged mounting shafts of which the one ends are fixed to the left inner side wall and the right inner side wall of the bearing frame, an adjustable inertia mass unit which is arranged between the left mounting shaft and the right mounting shaft, and a rubber springs which are arranged on the mounting shafts in a sleeving mode and provide rigidity and damping for transverse movement of the adjustable inertia mass unit. Compared with the prior art, the vibration absorber has the advantages that: the installation is convenient and flexible, the assembly is easy, the damping effect is stable, vehicle shaking is effectively restrained, and vehicle running stability and riding comfort are improved.

Description

technical field [0001] The invention relates to the technical field of rail transit equipment vibration reduction, in particular to a quality-adjustable integrated multiple dynamic shock absorber for suppressing rail vehicle shaking. Background technique [0002] In recent years, with the rapid increase of my country's comprehensive national strength, it is moving towards the grand goal of building a transportation power. Among the goals of building a transportation power, the construction of the rail transit industry is the top priority. Rail transit has become one of the most important modes of transportation because of its safety and convenience. At the same time, rail transit has played an important role in promoting my country's regional connections and economic development, and has become an important manifestation of my country's comprehensive national strength. [0003] With the rapid development of my country's rail transit industry, especially the continuous breakt...

AI Technical Summary

Problems solved by technology

However, due to factors such as the increase in the actual operating speed of rail vehicles, the increase in operating mileage, and the increase in passenger volume, the force of the wheels and rails has increased, and the suspension components of the vehicle have aging failures, which further lead to various vibration problems of the vehicle. As it intensifies, the car body shaking phenomenon is one of the most typical problems, and there is no unified conclusion on the cause of the car shaking, but because the shaking frequency is relatively close to the sensitive area of ​​the human body, it greatly deteriorates the ride comfort of passengers. Passenger ride experience and even operational safety pose a serious threat

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