LOCOMOTIVE FOUR-AXLE BOGIE WITH RADIAL ALIGNMENT OF EXTREME WHEELSETS Russian patent published in 2003 - IPC

FIELD: railway transport. SUBSTANCE: invention relates to design of four-axle bogie of locomotive in which radial alignment of wheelsets when negotiating curvilinear sections of track is provided. Proposed four-axle bogie of locomotive with radial alignment of extreme wheelsets contains frame with sides, end and cross beams, and four wheel-motor units with wheelsets, installed in frame traction motors, spring-suspension and axle boxes. Wheelset axle boxes of extreme wheel-motor units are connected with frame by articulated leverage. Axles of wheelsets of middle wheel-motor units are installed in axle boxes with increased runouts, as compared with axles of wheelsets of extreme wheel-motor units, and they are furnished with resilient axial stops in axle boxes. Each traction motor of extreme wheel-motor units is installed opposite to adjacent motor and is coupled with the latter by cross articulated rod and is hinge-connected with cross beam of bogie frame. Second and third wheelsets of middle wheel-motor units are arranged at minimum possible distance relative to each other and are connected by cross articulated rod. EFFECT: improved performance characteristics of locomotive. 3 cl, 3 dwg