Wind turbine gear box key components of gear and bearing damage problem

Wind turbine gear box key parts 2019 - gear and bearing damage problem 03 - 20 ( Source: metal material science and technology) At the time of our trip, in addition to the rapid operation of high-speed rail, on the way, we will often see wind turbines, namely large wind turbines. Wind power is a kind of clean energy, has broad prospects in the future, but the outlook is also endure the test of a lot of realistic problems. Wind power gear box are the most critical part of the wind turbines, in the process of service is also the most easily damaged parts. This introduces a foreign wind turbine gearboxes damage cases, for everybody to learn. Basic situation: wind power gear box bearing damage in the use of two years, this is a kind of typical early failure. The power of wind power gear box is 1250 kw. The output speed of 1500 r. Bearing damage is the main reason of the high cycle fatigue, it is the peak season winds continuous power make the bearing continuous overload, lead to bearing surface wear, on the surface the surface or the initiation of fatigue cracks at the same time, surface spalling damage. In general, wind power gear box end bearing in the process of high load operation produces heat, which will affect the lubrication effect, accelerated wear and even cause roller surface spalling damage. Bearing wear, the operation of the shaft would be affected, also affects the stress of the gear, the most common phenomenon is observed in partial load on the gears, the gear tooth broken, basic usually appear on the bearing, the question of the intermediate shaft pinion gear tooth broken is the root cause of bearing damage. By extension point problem, site selection of wind turbines is very heavy, the location of the historical meteorological data is also important basis, due to the location on the basis of not science, because the load caused by the brake often appear, thus greatly wreck the life span of the wind power gear box. Hope that under the blue sky, the wind can rotate freely, send us continuously clean energy. Reference: SANKAR S. , NATARAJ M. ，PRABHU RAJAV. 轴承的失效分析,风力涡轮发电机齿轮箱。 信息系统和通讯》杂志上。 卷3,问题1,2012,pp。 - 302 - 309.