Accurate fault diagnosis of railway bearings is crucial for the safe operation of trains, requiring a combination of various inspection techniques and data analysis methods. Below is a systematic fault diagnosis approach:
1. Brush: Use a steel wire brush to clean the bearing and its attachments, removing rust. Inspect meticulously to promptly identify external impact marks or damage, laying the foundation for detecting internal faults.
2. Tap: Gently tap the bearing’s rear baffle and axle-end bolts to check for looseness.
3. Rotate: Rotate the bearing outer ring by hand to sense subtle internal changes, checking for jamming or abnormal vibrations.
4. Listen: While rotating, listen carefully to determine whether the sound is normal or if there are any unusual noises.
5. Diagnose: Conduct a thorough diagnosis of any abnormalities.
6. Confirm: Based on the above steps, make an accurate judgment on whether the bearing has any issues, effectively improving the fault detection rate.
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