DUAL HARMONIC GEAR DRIVE Russian patent published in 2018 - IPC F16H1/32 F16H55/16 

FIELD: machine building.

SUBSTANCE: invention relates to harmonic gear drives. Harmonic gear drive (1) contains two rigid internal engagement gears (2, 3), flexible external engagement gear (4) and waves generator (5). Gear (1) wheel (4) is equipped with first and second outer teeth (7, 8). Number of teeth (7) and (8) does not match. First and second outer teeth (7, 8) are bent by the waves generator for the same amount of bending with the ellipsoidal shape production. Tooth profile (70) tooth height (h1) of the first outer teeth (7) having a smaller number of teeth is lower than the tooth profile (80) tooth height (h2) of the second outer teeth (8) having larger number of teeth.

EFFECT: enabling improvement in the engagement between the gear wheels.

11 cl, 8 dwg