The daily maintenance contents of the wind turbine gearbox mainly include: equipment appearance inspection, lubricating oil level inspection, electrical wiring inspection, etc.
The specific tasks include: cleaning the surface of the gear box when the operator is on board, checking whether the tank and the lubrication pipeline are leaking, whether the external lubrication line is loose or not, because the wind turbine vibration is large, if Poor fixing of the externally applied pipe will result in damage to the pipe joint seal or even breakage of the pipe. In addition, pay attention to the looseness and leakage of the oil drain valve at the bottom of the tank to avoid a large amount of leakage of the gear oil caused by the loosening and leakage of the oil drain valve.
Check the oil level and oil color from the oil scale or oil level window. If the oil level is low, it should be replenished in time. If it is found that the oil color is obviously dark and black, the oil quality inspection should be considered and the operation monitoring of the unit should be strengthened. In case of filter clogging alarm, it should be checked and treated in time. When replacing the filter element, the inside of the filter should be thoroughly cleaned. It is best to remove the filter assembly in the workshop for cleaning and inspection. When installing the filter housing, pay attention to the positive thread and apply even force to avoid damage to the thread and seal.
Check the gear oil level, temperature, pressure, differential pressure, bearing temperature and other sensors and heaters, heat sink wiring is normal, the wire is worn. In the daily inspection, you should also pay attention to the noise of the unit, and find the hidden troubles in time.
Regular maintenance and repair of wind turbines mainly includes: torque check of gear box connecting bolts, gear meshing and tooth surface wear inspection, sensor function test, lubrication and heat dissipation system function check, regular replacement of gear oil filter, oil sample collection, etc. When conditions permit, the industrial testing equipment can be used to detect and analyze the vibration and noise of the gearbox operating state, in order to more comprehensively grasp the working state of the gearbox.