Built-in particle damping shock absorber type wheel for railway vehicle

Abstract

The invention discloses a built-in particle damping shock absorber type wheel for a railway vehicle, and belongs to the technical field of vehicle shock absorption. The wheel comprises a rigid wheel body, a wear-resistant rubber partition layer, shock absorption particles, a sealing plate and the like. The rigid wheel body adopts an existing wheel structure and is only internally provided with a plurality of grooves and the wear-resistant rubber partition layer, a certain number of shock absorption particles and a small volume of lubricating oil are arranged in the wear-resistant rubber partition layer, and then the rigid wheel body is welded and sealed. The existing wheel structure is fully used, a shock absorber simple in structure is arranged in the wheel while the rigidity and strength of the wheel are ensured, and the wheel has the advantages of being low in cost, good in shock absorption effect, high in reliability and the like.

Description

technical field [0001] The invention relates to the field of rail vehicle vibration reduction, and relates to a wheel with a built-in particle damping shock absorber for rail vehicles. Background technique [0002] Particle damping technology is the latest micro particle damping and vibration reduction technology in the field of vibration control in the 1990s. It mainly fills the limited closed space of the vibrating body with small particles, and utilizes the space between the small particles and between the particles and the damper. The friction and collision between the walls consume the vibration energy of the system to achieve the purpose of vibration reduction. Its structure is simple, with low cost, maintenance-free, obvious damping effect, and strong adaptability to harsh environments. It is used in various fields of national economic construction, mainly in the field of passive control, especially in some fields with harsh working conditions, such as aviation Aeros...

AI Technical Summary

Problems solved by technology

[0003] In the existing rigid wheels, the noise and high-frequency vibration caused by the rolling of the tire on the track will be strengthened by the action of the wheel center diaphragm, and will be transmitted to the car body in the form of body noise, which will affect the ride comfort. The vibration frequency of the wheel is wide, the range is large, and the time is long, which may cause increased wear and shortened life of the wheel set

However, due to the joint action of centrifugal force and dynamic load, it is difficult to ensure the stability of its internal rubber under the existing conditions. Therefore, it is rarely used in high-speed EMUs.

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