WIDE-GEAR-RATIO PLANETARY GEARBOX Russian patent published in 2015 - IPC F16H37/04 F16H3/44 

FIELD: transport.

SUBSTANCE: invention relates to planetary gearboxes. Gearbox comprises drive shaft and two planetary rows: driven and auxiliary. Every planetary row comprises three links: sun gear, carrier with pinions and epicycle, one drive link, one driven link and one auxiliary link. At least two links of driven and auxiliary rows run in one direction. Auxiliary planetary row driven link transmits torque to auxiliary row auxiliary link via two clutches and two gears with different gear ratio. Auxiliary planetary row driven link transmits torque to driven planetary row auxiliary link. Gearbox can throw in only one clutch.

EFFECT: simplified design.

4 cl, 2 dwg