TRANSMISSION WITH FREE CAGE Russian patent published in 2008 - IPC F16H1/00 F16H25/06 

FIELD: mechanics.

SUBSTANCE: invention relates to precise machine making, in particular to gear transmissions to impart rotational motion and may be used in the drives decreasing and increasing the output shafts of high-precision machines and mechanisms. The transmission incorporates coaxial high-speed (1) and low-speed (2) shafts. High-speed shaft (1) incorporates eccentric (3) shifted relative to the central axis by value e. The eccentric has two rolling bearings (4, 5). Bearing outer race (5) carries cage (8) with intermediate roller links (7). Bearing (4) runs in contacts with intermediate roller links (7). The intermediate roller links are in simultaneous contact with the inner profile of central gear wheel (9), outer race of bearing (4) and the profile of cam (10) rigidly fitted onto low-speed shaft (2). Such an arrangement allows a higher reliability of transmission by ruling out the friction between the cage and the bearing outer race and the cage getting under the intermediate link.

EFFECT: higher reliability of gear transmission.

1 dwg