Driven type particle damping shock absorber for railway vehicle

Abstract

The invention discloses a driven type particle damping shock absorber for a railway vehicle, and belongs to the technical field of vehicle shock absorption. The driven type particle damping shock absorber comprises an upper cover plate type connector, a lower cover plate type connector, a rubber spherical hinge, a pin shaft, a circular spring, a shell, shock absorption particles and the like. Column bodies are spliced and welded to form the shell. The shock absorption particles accounting for 50-70% of the size of the shell are arranged in the shell. The upper connector is fixedly connected with one end of the shell through a shock absorption piece. The lower connector is welded to the other end of the shell. The rubber spherical hinge and the pin shaft are assembled. The shock absorber and a bogie are connected together after the requirement that a framework has certain rigidity and displacement relative to an axle box is met. The circular spring has certain rigidity as the elastic element and is pressed between end plates of the upper connector and the lower connector. Vibration energy is consumed through collision and friction between the particles and between the particles and the boundary, and the driven type particle damping shock absorber is simple in structure, is basically not influenced by temperature and is high in reliability.

Description

technical field [0001] The invention relates to the field of rail vehicles, and relates to a passive particle damping shock absorber for rail vehicles. Background technique [0002] Particle damping shock absorber is a kind of shock absorber developed on the basis of particle damping technology. It has the characteristics of simple and reliable structure, light weight, low cost and remarkable damping effect. It is mainly used in the field of passive control, especially in some Industrial fields with harsh environments. [0003] The existing series of vertical damping shock absorbers for high-speed vehicles have the following disadvantages: 1. High sealing requirements, oil leakage may occur after a long time of use; 2. Not suitable for low-amplitude high-frequency or high-amplitude low-frequency vibrations Effective control, which may affect ride comfort under special circumstances; 3. The price is high, the manufacturing process is cumbersome, and the environmental polluti...

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Problems solved by technology

[0003] The existing series of vertical damping shock absorbers for high-speed vehicles have the following disadvantages: 1. High sealing requirements, oil leakage may occur after a long time of use; 2. Not suitable for low-amplitude high-frequency or high-amplitude low-frequency vibration Effective control, which may affect ride comfort under special circumstances; 3. The price is high, the manufacturing process is cumbersome, and the environmental pollution is large, which does not meet the national macro-goal of energy conservation and emission reduction; 4. The oil pressure damper depends on imports, resulting in production Rising costs and low economic benefits

5. The external temperature has a great influence on the energy consumption of the hydraulic damper. When the temperature is high, the damping effect is greatly reduced

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