Abstract:Aiming at characteristic of complex pipeline, various lubrication points and high lubricant viscosity of gearbox lubrication system, gearbox power loss was calculated according to the methods proposed by Dudley, and then principle and methods of flowrate calculating and distributing are put forward. The system characteristics were analyzed with simulation in comprehensively considering factors as temperature, lubricant viscosity, pipeline resistance and local resistance, and so on. The experimental test of the lubrication system was carried out and then the design was optimized, which proved the validity of the lubrication system. The research shows that, it is very important for gearbox lubrication system design and its well running to rationally calculate and distribute total flowrate by using suitable accurate gearbox power loss calculation at every lubrication points. The flow resistance loss can not be ignored when design the gearbox lubrication system with high viscosity and complex pipeline. When design the system, it must be noted that the temperature variety have a big effect to the gearbox lubrication system with high viscosity and complex pipeline.