DUPLICATED WAVE DRIVE Russian patent published in 2001 - IPC

FIELD: machine elements; aviation and rocketry. SUBSTANCE: drive has housing 1 with wave gear train mounted inside it and provided with fixed flexible wheel 3, two coaxial electric motors 11 and 12 whose shafts are directed towards each other and output shaft 5. Electric motor 12 is located inside output shaft 5. Circular bracket 9 with flange 10 at its free end is located inside flexible wheel. Electric motors 11 and 12 are secured on opposite butt ends of flange 10. Wave generator 13 is mounted in bearings 14 on outer surface of bracket 9. Gears 15 and 16 having similar parameters of gear rims are secured on shafts of electric motors 11 and 12. Internal gear wheel 17 is fixed on wave generator 13. Flange 10 is provided with n (n=1, 2, etc) cuts 18 where n is satellites 20 are mounted respectively on axles; satellites 20 are thrown into engagement with both gears 15 and 16 and with gear wheel 17. Passage 21 for cable 22 of electric motor 12 is made in flange 10. EFFECT: increased angle of turn of output shaft; increased service life of drive. 2 cl, 1 dwg