Bearing fault self-diagnosis method and apparatus
A self-diagnosis and bearing technology, applied in signal transmission systems, instruments, etc., can solve problems such as misdiagnosis or missed diagnosis, low signal-to-noise ratio of fault characteristic signals, and unsatisfactory diagnosis results, so as to reduce human dependence and improve autonomy. performance, and the effect of improving accuracy
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[0092] Taking deep groove ball bearing 6220 as an example, the slotting position is selected on the outer ring of the bearing. Take the external load as F r =50kN, at this time the bearing works in the elastic range. Calculate the maximum load Q on the raceway of the outer ring according to formula (2) max = 25kN; according to the formula (3), the size of the elliptical area carried by the outer ring raceway is a = 5.525mm, b = 0.7482mm; when the bearing capacity coefficient is 0.8, the width of the small groove is 6mm and the length is 34mm ( Equal to the thickness of the bearing), the depth is 3mm. Then, the wireless vibration microsensor integrated with self-diagnosis algorithm is embedded in the small groove, and the remote monitoring PC is used to monitor the wireless vibration microsensor to diagnose the running state of the bearing.
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