RAILWAY EIGHT-AXLE TRACTION VEHICLE Russian patent published in 2006 - IPC B61F5/02 B61F5/18 B61F5/48 B61F3/06 

FIELD: railway transport.

SUBSTANCE: invention relates to eight-axle traction vehicles, namely, to design of running gears, traction force transmitting and wheelset axle radial setting mechanisms. Traction vehicle has body, frame 2 with automatic couplers and two four-axle bogies 8. Each four-axle bogie consists of two two-axle frameless bogies 10 interconnected by beam 9 resting on their axle-box suspension 11, and frame of body rests on said beams through bolster suspension 7. Frame of body has one central traction bracket 5 with pivot for each four-axle bogie arranged on longitudinal axle between its two-axle bogies with crossmember 19 secured on said bracket for rotation relative to vertical axis and connected by axle-box links 15 or tie-rods with axle boxes or their brackets of nearest wheelsets. Axle-boxes or their brackets of external wheelsets of each bogie are connected with corresponding axle boxes or their brackets of corresponding internal wheelset by axle-box or tie-rods provided with hinge joints filled with grease or liquid lubricant or with rubber-metal joints (silent blocks).

EFFECT: reduced overall dimensions of bogies and traction vehicles, dynamic loads when negotiating curved sections of track, angle of turning and shift of bogies relative to body, reduced cross displacements and loads on springs of spring suspension in curved sections of track; provision of radial setting of wheelset axles, reduced wear of wheel tires.

5 cl, 8 dwg