Train rolling bearing fault and impurity vibration distinguishing method
A technology for rolling bearings and trains, applied in the direction of mechanical bearing testing, measuring devices, instruments, etc., to achieve the effect of enhancing signal-to-noise ratio, solving misjudgment problems, and good technical support
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[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0036] figure 1 The structure of the train wheel set simulation test bench is given, mainly including wheels (1, 2), shafts (3), bearings (4, 5), motors (6), hydraulic pumps (7), friction wheels (8), Support seat (9); Lance 2052 acceleration sensor (10-13) is deployed on the outside of each rolling bearing; the bearing is driven by a motor to rotate the friction wheel, and the outer ring is relatively stationary; figure 2The double-row tapered roller bearing (model 197726) used in the experiment with the peeling fault of the outer ring is given, which consists of outer ring (1), inner ring (2), roller (3), cage (4) and other parts , where the number of rollers N=20, roller diameter d=23.7mm, bearing pitch diameter D=180mm, contact angle a=10 degrees, the bearing is controlled to run at 245rpm by adjusting the frequency converter, and the system sampling rat...
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