音響診断によるグリス潤滑式軸受の適切な保守管理
Acoustic diagnosis improves maintenance of grease lubricated bearings
著者:
神保 吉秀 Yoshihide JIMBO 岸田 光博 Mitsuhiro KISHIDA 黒柳 克巳 Katsumi KUROYANAGI 堀田 治 Osamu HOTTA 肥田 茂 Shigeru HIDA
発刊日:
公開日:
Acoustic diagnosisGrease lubricated bearingsTemperatureWear
概要
This paper describes effectiveness of applying acoustic diagnosis to the greasing work. When we hear abnormal sounds from grease lubricated bearings, we try greasing. As a result, usually abnorm al sounds fade away. But after a while sometimes the sounds appear again. Therefore we try greasing again. The sounds fade away at the time but later appear again. We try greasing again and agai n but the results are the same. By this time, the temperature of the bearing has increased a lot. If the temperature increases over the criteria, the life of the bearing and grease become short. We can avoid the repetitious greasing work with acoustic diagnosis. We can decide regreasing or not by the result of the diagnosis. Moreover we can find signs of wear of bearings by the result.
