Spring vibration attenuation damping device and bogie applying with the same

Abstract

The invention discloses a spring vibration attenuation damping device used for a bogie. The spring vibration attenuation damping device used for the bogie comprises wide friction inclined wedges (1), friction inclined wedge pockets (201), damper springs (3) and vertical side frame upright wearing plates (2), wherein the friction inclined wedge pockets are arranged at two transverse end portions of a swing bolster (20), the damper springs (3) are arranged below the wide friction inclined wedges (1) and the vertical side frame upright wearing plates (2) are in consolidation with two side frame uprights (4) of a side frame (50). An auxiliary friction surface (11) of each wide friction inclined wedge (1) gradually protrudes toward the middle along transversal of the bogie from two ends to the center. An auxiliary friction pair of the spring vibration attenuation damping device is formed by the combination of the auxiliary friction surfaces (11) and an auxiliary friction surface recessing toward the inner side of the swing bolster (20). The spring vibration attenuation damping device is capable of enhancing centring property of the wide friction inclined wedge relative to the swing bolster, strengthening frictional damping function, and guaranteeing stability of the bogie spring vibration attenuation damping device. The invention further discloses the bogie including the spring vibration attenuation damping device.

Description

technical field [0001] The invention relates to the technical field of railway transportation equipment, in particular to a spring damping and damping device for a wide friction wedge of a bogie. The present invention also relates to a bogie using the above-mentioned spring damping device. Background technique [0002] The bogie is one of the most important components in the structure of a railway vehicle. Its main function is to increase the load, length and volume of the vehicle, increase the speed of the train, and under the specified track conditions, the vehicles of the empty and heavy trains When running at low speed and high speed, it should have good running quality to protect vehicles and goods and meet the needs of railway transportation development. According to the load transfer mode between the car body and the bogie, the bogies can be divided into frame bogies, quasi-frame bogies and three-piece bogies. [0003] Chinese patent No. ZL94220969.9 patent "Railway...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned spring damping and damping device of the bogie needs to improve the vibration damping and damping effect due to the small lateral width of the main friction pair; and the poor alignment of the secondary friction pair leads to eccentric wear of the friction wedge, which reduces the spring damping to a certain extent. The role of the vibration damper

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