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), a flexible external engagement gear (4) and waves generator (5). Gear (4) is equipped with first and second outer teeth (7, 8) having different number of teeth, and gap (9). Gap (9) maximum width L1 is from 0.1 to 0.3 times of the wheel (4) width L. Depth from the first outer teeth (7) tooth top to the gap (9) deepest portion (9a) is from 0.9 to 1.3 times of the first outer teeth height. Depth from the second outer teeth (8) tooth top to the gap (9) deepest portion (9a) is from 0.9 to 1.3 times of the second outer teeth height.

EFFECT: enabling increase in the loading capacity.

10 cl, 3 dwg