SUPER-FINISHING OF LARGE PLANETARY GEARS Russian patent published in 2009 - IPC F16H55/06 

FIELD: machine building.

SUBSTANCE: invention refers to improvement of input planetary stage for large gear box designed for turbine wind-electric generator of 500 kW power and more. The planetary gear box of the input stage for the generator of the large wind turbine consists of a circular tooth gear, two or more satellites and of a sun gear. One or more teeth, preferably all, of planetary tooth gears of the gear box are super-finished by means of chemically accelerated vibration finish treatment to the value of micro-asperity of surface profile, approximately 0.25 mcm or less.

EFFECT: invention increases service life of bearings, reduces wear and noise caused by vibration and friction, reduces surface fatigue, increases resistance to corrosion-mechanical wear, simplifies run-in and increases operation life and efficiency of gear box.

33 cl, 8 dwg