FIELD: machine building.
SUBSTANCE: planetary gear reducer includes three peripheral shafts (6, 7, 8) with cylindrical gears kinematically connected to input shaft (24), a combined internal gear (14) and differential gear. The differential gear is placed inside the combined gear (14), one rim (12) of which forms internal engagement with cylindrical gears (9, 10, 11) of the peripheral shafts and the other rim (13) forms internal engagement with the differential gear satellites. Axes of the peripheral shafts are parallel to the axis of the central output shaft and are equally distanced from it. Gears (15, 16, 17) of the peripheral shafts are engaged with a cylindrical gear wheel (18) having a common hub with the cylindrical wheel (19) of the differential gear.
EFFECT: invention provides for eliminating of centrifugal forces, obtaining of any value of the reducer gear ratio and diminishing of reducer dimensions.
2 dwg
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