FIELD: railway transport.
SUBSTANCE: invention relates to rail vehicles, particularly, to bogie axle-box spring suspension. Springs 15 of axle-box spring suspension are made with support coil in form of extreme working coils. Support devices are made over complete circumference of spring coils in form of grooves or semigrooves, with stepless increasing clearances determined at nonleaded state of spring between support surfaces of said supports and support coils of spring to values equal to ▵=(0.5-0.8)*tc.st where tc.st is sag of one working coil of spring under static load. According to second designed version, support devices 16 are made either partially or completely from elastic material with modulus of elasticity from 5 to 100 mPa.
EFFECT: reduced overall dimensions of springs, their metal usage, provision of uniform distribution of loads in springs and wheels, improved reliability and increased service life of spring suspension.
4 cl, 7 dwg
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