发明申请
- 专利标题： ABRASION SENSING DEVICE, WIND TURBINE GENERATION APPARATUS INCLUDING THE SAME, AND ABRASION SENSING METHOD
- 专利标题（中）： 磨损传感装置，包括其的风力发电装置和磨损传感方法
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申请号： US13634390申请日： 2011-03-09
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公开(公告)号： US20130008242A1公开(公告)日： 2013-01-10
- 发明人: Tomoya Sakaguchi
- 申请人： Tomoya Sakaguchi
- 申请人地址： JP Osaka-shi, Osaka
- 专利权人： NTN CORPORATION
- 当前专利权人： NTN CORPORATION
- 当前专利权人地址： JP Osaka-shi, Osaka
- 优先权： JP2010-056193 20100312; JP2011-046247 20110303
- 国际申请： PCT/JP2011/055467 WO 20110309
- 主分类号： G01M15/00
- IPC分类号： G01M15/00
摘要：
When it is determined that a blade is rotating, a control device operates a braking device, and acquires a rotation angle (first rotation angle) from a rotation angle sensor. Then, the control device reverses a nacelle and acquires again a rotation angle (second rotation angle) from the rotation angle sensor. Then, the control device determines whether or not the difference between the first rotation angle and the second rotation angle is greater than a threshold value. When it is determined that the rotation angle difference is greater than the threshold value, the control device determines that a gear or a bearing of a gearbox is worn out.
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