Wind turbine main bearing

摘要

A wind turbine main bearing realized to bear a shaft of a wind turbine, which shaft is caused to rotate by a number of blades connected to the shaft is disclosed. The wind turbine main bearing includes a fluid bearing with a plurality of bearing pads arranged about the shaft. Also disclosed is a wind turbine with a number of blades connected to a shaft and realized to rotate the shaft, which wind turbine includes as main bearing a wind turbine main bearing. Further described is a method of performing maintenance on a wind turbine, including the steps of halting a rotation of the shaft, operating a lifting arrangement to raise the shaft, and removing a bearing pad of the wind turbine main bearing from the bearing housing of the wind turbine main bearing.

主权项

1. A wind turbine main bearing realized to bear a shaft of a wind turbine, which shaft is caused to rotate by a number of blades connected to the shaft, comprising:
a fluid bearing with a plurality of bearing pads arranged about the shaft, where at least one of the plurality of bearing pads comprising a plurality of cavities located on an inner surface of the bearing pad, wherein at least one of the plurality of cavities comprising, a fluid inlet for the injection of a fluid lubricant to the inner surface of the bearing pad, wherein the location of at least one of the cavities is chosen on the basis of specific isobar contours representing regions of low relative pressure on the inner surface of the bearing pad.