The commonly used gear box lubrication methods include gear oil lubrication, lubrication of half fluid lubricating grease and lubrication of solid lubricant. For good sealing, high speed, heavy load, good sealing performance can be used gear oil lubrication; For the sealing is not good, low speed can use semi-fluid grease lubrication; for oil occasions or high-temperature occasions can use molybdenum disulfide ultrafine powder lubrication.
The lubrication system of the gearbox is very important to the normal work of the gearbox, and the large wind power gearbox must be equipped with a reliable forced lubrication system to lubricate the gear meshing area and bearing. In the case of gearbox failure, the lack of lubrication accounted for the half. The lubricating oil temperature is related to the fatigue of components and the life of the whole system. -The maximum oil temperature should not exceed 80 ℃ when the gearbox is working normally, the temperature difference between different bearings should not exceed 15 ℃. When the oil temperature is higher than 65 ℃, the cooling system begins to work, when the oil temperature is lower than 10 ℃ start, the lubricating oil should first be heated to the predetermined temperature before powering on.
Gear box Lubricating oil has the best temperature range of work, it is recommended to design a lubricating oil thermal management system on the gearbox lubrication system: When the temperature exceeds a certain value, the cooling system begins to work, when the temperature is below a certain value, the heating system starts to work, and always controls the temperature in the best range.