Variable Oar Key Techniques From Drive Reliability For The Reducer Of Variable Pitch System Used In High Power Wind Turbine

The reducer for variable pitch driver used in high power wind turbine is one of the key parts in wind turbine system, and the load-capacity, mechanical properties and reliability for maintenance-free life of the reducer are one of the key factors, therefore, based on the research of reducer between the main components of the forces and related structural parameters optimization, it is necessary to further study the reliability。This paper is drive reliability for the reducer of variable pitch system used in high power wind turbine by Level 2 cycloidal pinwheel reducer combined with the ministry of education fund projects returned《The high power wind electrical variable oar drive with the research》。Established turn arm bearing and rolling bearing models of reliability and derived bearing life and reliability of the equation, compute power from wind generators by variable oar turn arm bearing drive the reliability and rolling bearings。Deduces the reliability of cycloid gear design model, According to relevant data calculated with high-power wind-driven generator from drive change propeller secondary cycloidal reliability。Established the reliability model of axis, and wind generator is calculated by variable paddle high power from the drive motor input shaft, aligning intermediate shaft and the reliability of the output shaft. Analyzed with variable oar wind generator power from drive failure and typical failure mode, and list the gear reducer FMECA work form, and draw the harm degree matrix。Use the fault tree analysis method,with variable wind generator with power from drive can not work normally OARS established as a top events fault tree,and the fault tree analysis and simplification, then find out the weak link of the reducer with high power and influence from wind generator variable oar the main factors of normal working drive。Assuming key parts of the high-power wind turbine generator's variable pitch driver is mutual independence, established reducer transmission system's reliability calculation models of the high-power wind turbine generator's variable pitch driver, and make the reliability prediction and reliability reassignment of the high-power wind turbine generator's variable pitch driver。...