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Classification and characters of bearings for wind power

wallpapers Tech 2021-09-13
In the past ten years, wind power, as a renewable green and environmentally friendly new clean energy, has been highly valued by all countries and has achieved considerable development. Bearings for wind turbines mainly include yaw bearing assembly, blade main shaft bearing, transmission bearing, generator bearing, etc. The structure of the bearing mainly includes four-point contact ball bearings, cross roller bearings, cylindrical roller bearings, and adjustable bearings.
Wind power bearing is a special kind of bearing, which is used in harsh environments, with high maintenance costs and long service life.
Wind turbines work in the field all year round, the working conditions are relatively harsh, the temperature, humidity and bearing load vary greatly, the wind speed can reach up to 23m/s, and there is an impact load. Therefore, the bearing is required to have good sealing performance, lubrication performance, and impact resistance. , Long life and high reliability, the generator must start when the wind is level 2~ 3 and can track the change of the wind direction, so the bearing structure needs to be specially designed to ensure low friction and high sensitivity. Large yaw bearings require outer rings tooth. In order to better achieve the best condition of the wind turbine, the bearing design, material, manufacturing, lubrication and sealing must be specially designed to provide a stronger guarantee for the good operation of wind power equipment, which can greatly improve the performance and performance of the equipment.
Maintenance is also important in the wind power equipment system. Wind turbines are usually located in places that are not easy to maintain. They are often installed on mountains, in the desert or on the coastline. Condition monitoring systems can assist in monitoring the performance of the transmission system, and predictable maintenance can improve the performance and reliability of these systems and increase the effective running time of the equipment. Such as monitoring equipment status through vibration analysis, oil analysis and infrared thermal imaging to determine the maintenance process at the best time for maintenance; predictive maintenance methods can improve the reliability of equipment operation, and only when the equipment needs to be repaired Maintenance, reduce excessive maintenance and reduce maintenance costs.