Efficiency of a planetary multiplier gearbox: Influence of operating conditions and gear oil formulation

摘要

In this study a single stage planetary multiplying gearbox with helical gears was tested on a back-to-back gearbox test rig with recirculating power under the operating conditions that matched the tangential velocities and operating contact pressures found in a planetary stage of a 2.5 MW wind turbine. The study was done with four different wind turbine gear oils. The gearbox oil sump temperature was set free.