SPRING SUSPENSION OF RAILWAY VEHICLE BOGIE FRAME Russian patent published in 2004 - IPC

FIELD: railway transport; transport engineering. SUBSTANCE: invention relative to vibration protection systems of rail vehicle and it can be used to improved dynamic characteristics of electric locomotives. Proposed spring suspension consists of main flexible member 1 and additional flexible member. Main flexible member consists of two springs installed between brackets of axle-box and side beam of bogie frame, and additional flexible member consists of two torsion bars 4 and vertical rod 8 provided with stop consisting of two plates one of which is compensating plate 5, and the other is friction plate 7. Torsion installed on side beam of bogie frame and twisted through angle and engaging through rollers 2 and friction sliders 6 with profiled plates of rod vertically secured on axle box, form optimum power characteristic of vehicle vibration protection system. EFFECT: improved efficiency of protection of vehicle from dynamic vibrations appearing when negotiating irregularities of track, improved manufacturability of structure. 2 cl, 4 dwg