PLANETARY GEAR Russian patent published in 2012 - IPC F16H1/32 

FIELD: machine building.

SUBSTANCE: planetary gear comprises a master eccentric carrier (1), four satellites (2) with external teeth and holes, installed onto spherical rolling bearings (3), a central wheel (4) with internal teeth, a disc (5) with holes, rigidly connected with a master shaft (7), and installed in holes of satellites (2) and the disc (5) freely, movably short and long rollers (8, 9). Rolls (8, 9) in the form of their coupling with satellites (2) are arranged with surfaces in the form of a hyperboloid of rotation, and in areas of coupling with the disc (5) - in the form of a truncated ellipsoid. Satellites (2) and the disc (5) are arranged with surfaces corresponding to surfaces of rollers (8, 9). Short rollers (8) are coupled with two middle satellites (2), and long rollers (9) - with two extreme satellites (2).

EFFECT: invention makes it possible to increase loading capacity of a planetary gear.

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