LOCOMOTIVE FOUR-AXLE BOGIE Russian patent published in 2005 - IPC

FIELD: railway transport.

SUBSTANCE: invention relates to bogie to bogies of locomotive running gear with three and more driving axles. Proposed bogie contains rigid frame 1 with sides 2 and cross beams 3, 4, one-side shoe brake 25, four wheel motor units including extreme wheels 5 and middle wheelsets 6 with link axle boxes 9, 10 arranged symmetrically relative to bogie transverse symmetry plane, frame-suspended traction motors 12 and nose-suspended axle-hung traction reduction gears 13. Frame 1 rests on link axle boxes 9, 10 through spring suspension 11. Middle wheelsets 6 have only process axial clearances in conjugation with link axle boxes 9, being arranged at a distance from each other to provide stable movement of bogie at maximum speed. Extreme wheelsets 5 have axial play in conjugation with link axle boxes 10. Distance between extreme wheelsets 5 and adjoining middle wheelsets 6 is determined by limitation of relative touch in members of wheel-motor units of said wheelsets. Cross beams 3, 4 are arranged over axles 7, 8 of each wheelset 5, 6. Cross beams contain fastening units of brackets 28, 29 of traction motors 12. Ends of cross beams 3, 4 are brought to level of flanges of tires of wheelsets 5, 6. Traction motors 12 are connected with traction reduction 13 by cardan shafts 14 arranged in hollow shafts of traction electric motors and by means of flexible cardan clutches 19 and toothed cardan clutches. Brake shoes 26 are installed from outer sides of extreme wheelsets 5 and middle wheelsets 6. Bogie is provided additionally with disk brakes 27.

EFFECT: reduced forces of interaction of wheels and rails when negotiating straight and curvilinear sections of track, reduced mass and length of bogie.

3 cl, 6 dwg