PLANETARY GEAR MECHANISM WITH DOUBLED SATELLITES Russian patent published in 2009 - IPC F16H1/28 

FIELD: mechanics, machine engineering.

SUBSTANCE: invention relates to machine engineering and is intended for planetary gears with high transmission ratio in one stage and small dimensions. The planetary gear mechanism includes housing (18), spider formed by two rigidly connected discs (19 and 20) and doubled satellites (3). Each satellite consists of two identical crowns turned around with regard to each other (27, 28 and 29, 30) correspondingly. The crowns (27, 28) of satellites (3) are engaged into driving central wheel (1) of external gearing. The external gearing is also implemented as stepped and consists of two identical crowns turned around with regard to each other (25, 26). The crowns (25 and 26) have one profiled tooth in the shape of eccentrically offset circle. The crowns (27 and 28) of satellites (3) have cycloid profile forming eccentrically cycloid gearing, which is provided with transmission ratio increased in several times under otherwise equal conditions. The crowns (29, 30) of satellites (3) are implemented as single-toothed eccentrics. The crowns (29, 30) interact with crowns (31 and 32) of the second central wheel of inner gearing and implemented on the inner surface of housing (18).

EFFECT: eccentrically cycloid gearing in both lines of planetary mechanism allows for increasing transmission ratio to a greater extent avoiding dimensions change.

2 cl, 8 dwg