PLANETARY GEAR Russian patent published in 2016 - IPC F16H1/32 

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to high-speed gear transmissions with limited radial size. Planetary gear includes eccentric carrier (1) made with four eccentricities equal to inter-axial distance in planetary gear and directed in pairs to diametrically opposite directions, two extreme satellites (2), two middle satellites (3), fixed central wheel (4), two extreme disks (5, 6), middle disk (7), braces (8), connecting extreme disks (5, 6) and middle disk (7). Longer rollers (9) are made with groove in their middle part and are located inside rollers of smaller length (10), which are made hollow and with inner surface diameter exceeding diameter of longer rollers (9) in their middle part by more than two inter-axial distances of planetary gear. Longer rollers (9) are coupled with extreme satellites (2) and extreme disks (5, 6), and rollers of smaller length (10) are coupled with middle satellites (3) and middle disk (7).

EFFECT: thereby higher strength and rigidity of planetary gear is achieved.

1 cl, 2 dwg