DOUBLE-ROTOR ELECTRIC DRIVE Russian patent published in 1997 - IPC

FIELD: mechanical engineering drives. SUBSTANCE: bearing 6 mounts internal rotor and bearing 7, external one coupled with output shaft which carries slip rings 8 applying AC current to winding of external rotor 2. Internal rotor 10 has squirrel-cage winding. Internal rotor is coupled on other end to driving roll 11 mounted on bearing 12 on drive axis. Driving roll comes in contact with coupled cones 13 installed in yoke 14 on bearings 15 and shafts 16 inclined through certain angle to drive axis equal to half the angle at cone top. Opposing cones come in contact with embracing ring 17 which transmits torque to ring 18 on external rotor 9. Gear ratio automatic control mechanism has compressing spring 19 and screw pair built up of bushing 20 and ring 14. Bushing has slots on its ends receiving needle bearings mounted on shafts 21, four on each side. EFFECT: improved design. 3 cl, 5 dwg