Diagnostic method for predicting maintenance requirements in...

G - Physics – 05 – B

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G05B 23/02 (2006.01) B21B 38/00 (2006.01)

Patent

CA 2531376

This invention is a method to determine the condition of rotating equipment, namely drive spindles, to enable the timely maintenance or replacement of same. The method uses an electrical signal from a vibration sensor mounted on part of the drive train to measure the level of vibration energy when the equipment is rotating under loaded and unloaded conditions. The relative vibration under the loaded and unloaded conditions is used as an indicator of equipment condition. Typically there is more vibration under load when the equipment is in good condition. When the level of vibration under the no-load condition matches or exceeds that seen under load, the equipment needs to be serviced or replaced.

La présente invention concerne un procédé permettant de déterminer l'état d'un appareil rotatif, notamment, d'arbres d'entraînement, pour permettre leur maintenance ou leur remplacement au moment opportun. Ce procédé utilise un signal électrique émanant d'un détecteur de vibrations monté à une partie de la transmission, afin de mesurer le niveau d'énergie de vibrations, lorsque l'appareil tourne à l'état chargé et déchargé. La vibration relative dans des états chargés et déchargés est utilisée en tant qu'indicateur de l'état de l'appareil. Généralement, plus de vibrations sont produites à l'état chargé, lorsque l'appareil est en bon état. Lorsque le niveau des vibrations à l'état non chargé correspond ou excède celui remarqué à l'état chargé, l'appareil doit être amené en révision ou remplacé.

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