TWO-SPEED AUTOMATIC PLANETARY TRANSMISSION Russian patent published in 2018 - IPC F16H3/44 F16H59/14 

FIELD: machine building.

SUBSTANCE: invention relates to planetary gearing. Two-speed automatic planetary gear contains a body, a planetary series, a friction clutch that connects the central wheels of the planetary gear. It is equipped with a rotary bushing, which interacts with one end with the brake disc installed in the body, and the other through two-sided chamfered face teeth and rolling elements with reciprocating teeth on the crown gear, which interacts simultaneously through the rolling elements with the other end of the body. Crown gear is rotatably mounted on the pressure plate of the friction clutch. Radial cams of the driven coupling half of the friction clutch are located in the end grooves of the rotary sleeve and ring gear with the possibility of interacting with them, an installation gap is provided between the rolling elements and the end face of the ring gear, and the angle of inclination of the two-sided tapered face teeth of the rotary sleeve and ring gear is less than the reduced friction angle between the pivoting sleeve and the brake disc.

EFFECT: simplified design and expansion of functional capabilities are achieved.

1 cl, 7 dwg