PLANETARY GEAR Russian patent published in 2013 - IPC F16H1/32 

FIELD: machine building.

SUBSTANCE: planetary gear includes an assembled drive eccentric shaft, two satellites (7), fixed central gear wheel (9), disks (10, 11, 12) rigidly attached to each other, rollers (13) freely installed in holes of satellites and disks. Drive eccentric shaft consists of cylindrical shaft (1) with diametrically opposite located flats at installation points of bearings of satellites, segments (2) with cylindrical surface corresponding to surface of inner bearing ring of satellite, wedges (3) located on the shaft flats, and adjusting nuts.

EFFECT: reduction of free play is provided through reduction of gaps in engagements owing to making an assembled drive shaft, and wedges offsetting satellites in radial direction.

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