PLANETARY GEAR TRAIN FOR A WIND POWER PLANT AND METHOD

摘要

The invention concerns a planetary gear train for a wind power plant. The gear train comprises: a planetary stage rotating in a gear train housing (4); a spur gear stage downstream of the planetary stage; a sun wheel shaft (327) which is non-rotatably connected to a sun wheel of the planetary gear stage; and a hollow shaft (400) which is coaxially surrounded by a spur gear (32) of the spur gear stage and is non-rotatably connected to said spur gear. The sun wheel shaft (327) and the hollow shaft (400) are non-rotatably connected to each other by a toothed coupling (ZK2), outer toothing of the sun wheel shaft (327) meshing with inner toothing of the hollow shaft (400). The gear train comprises oil-guide ducts (43, 46) which produce a connection between an oil inlet (41) connected to the gear train housing (4), on the one hand, and the toothed coupling (ZK2) and the axial contact surface (50), on the other.