Vibration signal acquisition method for intershaft bearing
A bearing vibration and signal acquisition technology, which is applied in the detection field, can solve problems such as difficult direct installation of sensors, low signal-to-noise ratio of fault signals, and difficulty in diagnosis, so as to improve the signal-to-noise ratio and facilitate follow-up monitoring and diagnosis.
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[0014] The present invention will be further elaborated below in combination with the accompanying drawings and the technical solutions of the description.
[0015] The invention discloses a method for collecting vibration signals of intermediary bearings, the working principle of which is as follows: the sensor installation buckle rotates synchronously with the high-voltage rotor shaft, the acceleration sensor is fixed on the sensor installation buckle through a threaded hole, and the lead wire of the acceleration sensor is connected to the outer ring of the electric brush At the connection point, the inner ring of the brush is fixed to the high-voltage rotor shaft by screws, and rotates synchronously with the high-voltage rotor shaft. The outer ring of the brush is fixed on the base 2 of the test bench by bolts, the leads of the outer ring of the brush are connected to the data acquisition board box 12, and the collected vibration signals are uploaded to the PC through the da...
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