RUNNING GEAR OF RAIL VEHICLE Russian patent published in 2007 - IPC B61F3/04 B61F5/16 B61F5/50 B61C9/50 

FIELD: rail vehicles.

SUBSTANCE: proposed running gear includes traction drive and wheel bogie with frame 4 and two wheel pairs 5. Frame has central lowered cage with lemniscate mechanism 18 and arched end sections of longitudinal beams 15 projecting above it and above wheels; end sections are supported by axle boxes of wheel pairs through shock absorbers of axle box suspension. Frame is provided with systems of cantilever-type resilient supports 26 which are spaced in axisymmetrical direction and are provided with dampers. This system forms four-stage cushioning system of rail vehicle body together with circular shock absorbers of wheel hubs, shock absorbers of axle box suspension and lemniscate mechanism. This system also provides for cushioning of traction drive part at different levels. Traction drive includes traction motor, propulsor in form of contact part of wheel bandage which is kinematically linked with traction motor through hub and wheel pair axle; reduction gear 45 is mounted on axle partially resting against it; its other part is supported by arched end section of frame and partially by reduction gear by means of transmission kinematically linked with traction motor.

EFFECT: smooth running at minimum radii of curves; reduction of dynamic loads and noise; increased distance run between overhauls; enhanced reliability and maintainability; increased service life.

18 cl, 12 dwg