Spherical-surface journal spring

Abstract

Disclosed is a spherical journal spring, comprising a core shaft, a rubber piece and a pedestal. The upper part and the lower part of the rubber piece are vulcanized and integrated respectively with the core shaft and the pedestal. The rubber-metal composite journal spring is a spherical journal spring and the rubber piece is in the shape of the combination of a sphere and a column; wherein the lower part of the rubber piece resembles a sphere and the side face of the rubber piece resembles a column, and the spherical part and the columnar part are smoothly connected. The core shaft is also in the shape of the combination of a sphere and a column, which matches the internal face of the rubber piece; the lower part of the core shaft is spherical and the side face of the core shaft is columnar, and the spherical part and the columnar part are in smoothly connected. The internal hole of the pedestal is in the shape of the combination of a column and a sphere, which matches the external spherical face and the columnar part of the rubber piece, and the bottom of the internal hole of the pedestal is spherical and the side face of the internal hole is columnar. The core shaft and the pedestal are made of light aluminium alloy. Elastic absorption of vibration is taken by the spherical rubber piece which is integrally vulcanized with the light aluminium alloy component parts.

Description

Technical field [0001] The invention relates to a vehicle vibration damping component, in particular to an axle box spring vibration damping component for a rail vehicle bogie. The axle box spring damping component is mainly used for the primary vibration damping of the vehicle bogie, providing flexible support and positioning for the vertical and lateral directions of the frame, and transmitting traction and braking force during operation. Background technique [0002] The axle box spring on the rail vehicle bogie and ten bogie primary damping springs are set up to ensure the smooth and safe operation of the vehicle. It is installed between the axle box and the frame. Now the axle box springs generally use rubber-metal composite axle box springs. For bogies with a rocker structure, the axle box springs distributed at both ends of the axle box, the axle box spring at one end (swing end) should have larger vertical deflection and smaller longitudinal and lateral stiffness, and the...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a relatively small vertical deflection and relatively large Rubber-metal composite axle box spring with vertical stiffness (small displacement under heavy load) and large longitudinal and transverse stiffness

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