An early diagnosis method for bearing faults based on adaptive frequency-shift variable-scale resonance technology
An early diagnosis and scale-changing technology, applied in the testing of mechanical components, testing of machine/structural components, instruments, etc., can solve problems such as difficulty in extracting early fault signals of bearings, achieve the effect of eliminating interference and improving signal-to-noise ratio
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[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the technical solutions in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0029] like figure 1 , this scheme provides a bearing fault early diagnosis method based on adaptive frequency shift variable scale resonance technology, which includes the following steps:
[0030] Step 1: First, install the fault bearing to be detected on the output shaft of the motor with load, use the rotation of the motor to drive the bearing to be detected to rotate, and then use the acceleration sensor to collect the original vibration signal v(t) of the bearing of the faulty bearing to be detected.
[0031] Step...
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