| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing state diagnostic apparatus which can be structured and assembled easily. <P>SOLUTION: In a bearing state diagnostic apparatus, a sound generated from a bearing 21 is detected by a sound sensor and a detection value of the sound sensor is compared with data created beforehand to diagnose a state of the bearing 21. The sound sensor is disposed away from an outer surface of a tubular support 12 for accommodating the bearing 21 therein. The bearing 21 and the sound sensor are communicated by a detection sound propagation path 71. A path 171 for supplying lubricating oil to the bearing 21 is connected in the middle of the detection sound propagation path 71, so that both the paths are made common partially. <P>COPYRIGHT: (C)2013,JPO&INPIT |
