| 摘要 |
The present invention relates to a wind power generator. The power generator comprises a wing section including a hub, wings and a pitch angle control unit. The pitch angle control unit comprises a bearing and a first drive part, and the hub comprises an installation area used for a second drive part having a second drive gear to be engaged, in case an available area of the internal gear is damaged, with an area that is different from the available area of the internal gear. Accordingly, the maintenance and repair work can be facilitated and the maintenance and repair costs can be reduced.
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