Patent ID: 8529391
Filing Date: 2013-09-10
Classification: F03D,F05B,F16H,Y02E

Abstract:
1. A gear train for a wind turbine, comprising: at least one planetary gear stage arranged at a drive side of the gear train and comprising an annulus gear, a planetary carrier, a plurality of planetary gears mounted in the planetary carrier, a sun gear and a sun shaft; said sun gear being arranged at an end of the sun shaft; a gear train stage arranged at a driven side of the gear train and comprising a hollow shaft, wherein the hollow shaft surrounds another end of the sun shaft of the at least one planetary gear stage; a gear train housing enclosing the at least one planetary gear stage and the gear train stage; a drive shaft connectable to a rotor hub, said drive shaft being co-rotationally coupled to the planetary carrier of the at least one planetary gear stage; a driven shaft connectable to a generator, said driven shaft being co-rotationally coupled to a toothed gearwheel of the gear train stage; a denture clutch having a tooth system and co-rotationally coupling the sun shaft of the at least one planetary gear stage to the hollow shaft, said tooth system being arranged inside the hollow shaft; a lubricant feed ring arranged at a front face of the hollow shaft facing toward the sun gear of the planetary gear stages, said lubricant feed ring having a cone-shaped passage opening, said cone-shaped passage opening having an internal diameter which decreases in a direction of the sun gear of the at least one planetary gear stage and concentrically surrounds the sun shaft of the at least one planetary gear stage, and at least one lubricant feed nozzle aligned with a circumferential gap between the lubricant feed ring and the sun shaft of the at least one planetary gear stage for supplying lubricant to the denture clutch.