OPTICAL SKIDDING SENSOR FOR BEARINGS

The present disclosure provides a non-destructive technique for the measurement of bearing element speed and/or pass-frequency (roller speed and/or pass-frequency for roller bearings or ball speed and/or pass-frequency for ball bearings) that can be compared with a rotational rate of the rotary elem...

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Bibliographic Details
Main Authors RANDY PAYETTE, DADOUCHE, AZZEDINE, KERROUCHE, RAMI
Format Patent
LanguageEnglish
French
Published 16.12.2023
Subjects
MEASURING
PHYSICS
TESTING
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES
TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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Summary:The present disclosure provides a non-destructive technique for the measurement of bearing element speed and/or pass-frequency (roller speed and/or pass-frequency for roller bearings or ball speed and/or pass-frequency for ball bearings) that can be compared with a rotational rate of the rotary element to evaluate skidding. The technique employs a high temperature optical emitter and detector pair, which may be adjacent in a reflective setup, or at opposite sides of the bearing in a pitch-catch setup. The emitter has an opening angle of 45-120 to enable the sensor to operate in an oil droplet laden environment. In either configuration, the sensors have been successfully demonstrated at speeds beyond 20,000 rpm and oil supply temperatures up to 82 C, and have been demonstrated on roller bearings featuring metallic and polymer-based cages. The sensors are also not sensitive to bearing material and can achieve results with metal as well as hybrid bearings (e.g. ceramic rollers).
Bibliography:Application Number: CA20223163191