PLANETARY REDUCTOR Russian patent published in 2017 - IPC F16H1/48 

FIELD: machine building.

SUBSTANCE: invention relates to machine drives. The gearbox comprises a sectional body mounted therein a stepped output shaft. At the internal end of the maximum diametral stage of the output shaft made m hemispherical depressions, arranged concentrically with the pitch circle diameter D1 with steps of t₁, in which the beads with diameter d₁ are set. Mating hemispherical balls enter the recesses, formed in an amount of m+1 level in the inner satellites mounted on angled axles α to the carrier axis. Satellites have a conical shape at an angle α less than 90°. External satellite stages have n recesses, located on a pitch circle concentric with step t₂ on the outer radial surface in contact with the base body having n recesses response made by the circle of diameter D2 inner end of mentioned body base by means of balls with diameter d₂. The carrier has two sesquialteral grooves with torus diameter d₁ and d₂, mounted on the end surface of the carrier's base. They are made concentrically to the parallel carrier axis on the segmential circle diameter distance d₁ and d₂, which contact with taws mounted in the recesses of the unmoving central wheel and have the diameters d₁ and d₂, and they form doubled persistent bearing in the gaps between the satellites.

EFFECT: invention provides increased load capacity and efficiency of the gear.

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