Most wind turbines are located at wind outlets such as high mountains, beaches, deserts, etc. . Traffic is inconvenient, operation and maintenance resources are difficult to dispatch, and in case of failure, the daily loss due to low power generation is as high as 12,000 yuan (2MW fan) .
As an important transmission component of wind turbine, the gearbox is mainly used to transfer the wind turbine power to the generator and make it get the corresponding rotational speed, it is also one of the parts with high failure rate in the fan.
Moreover, because the gearbox is installed in the narrow cabin of the tower, which is tens of meters above the ground, it is very difficult to repair the fault. If the gearbox fault is complicated, it can not be repaired on the top of the tower, and it needs to be treated on the bottom of the tower.
