LOCOMOTIVE THREE-AXLE BOGIE Russian patent published in 2002 - IPC

FIELD: railway transport. SUBSTANCE: invention relates to devices designed for provision of radial setting of wheelset axles at negotiating curved sections of track. Proposed device has wheelset axle boxes furnished with brackets passed through frame sides. Upper ends of these brackets are connected with brackets installed on upper sheets of frame sides by means of links with tensioning devices. Longitudinal and transverse rigidity of axle box springs of extreme wheelsets arranged at their outer side is equal to 0. -0.6 of rigidity of axle box springs arranged at inner side of these axle boxes. Transverse rigidity of set of axle box springs of middle wheelset is 0.5- 1.0 of transverse rigidity of set of axle box springs of extreme wheelset. Traction motors of extreme wheelset are connected with bogies frame by means of traction links arranged along longitudinal axis of bogie in horizontal plane passing through axles of wheelsets. EFFECT: automatic setting of bogie wheelsets to suit radius of track curve when negotiating curved tracks. 4 cl, 3 dwg