1. Visual Observation Method
Edge Gap Inspection: Observe whether the gap between the conveyor belt edge and the frame or idler rollers is uniform. If the gap on one side is significantly larger or smaller, misalignment exists.
Running Track Monitoring: If the conveyor belt continuously shifts to one side, oscillates, or moves in a serpentine pattern, it indicates misalignment.
2. Rule-Based Judgment
Runs Loose, Not Tight: The conveyor belt will shift towards the side with less tension.
Runs High, Not Low: If one side of the idler roller is higher, the conveyor belt will shift towards the higher side.
Runs Backward, Not Forward: If one end of the drive drum or idler roller is further back, the conveyor belt will shift towards the "backward" side.
3. Dynamic Testing
Comparison of No-Load and Load Conditions: If the belt runs normally under no-load but misaligns under heavy load, it is usually due to uneven material distribution or shifting of the material drop point.
Localized Misalignment Detection: If the misalignment only occurs in a specific section, check the idler rollers or joints in that area for abnormalities.
4. Auxiliary Tool Detection
Laser Alignment Tool: Calibrate the parallelism of the rollers (error should be ≤ ±2mm).
Sensor Monitoring: Install a laser material flow sensor to monitor the misalignment trend in real time.
5. Abnormal Signal Identification
Noise and Vibration: Misalignment may be accompanied by abnormal friction sounds or idler roller jamming sounds.
Edge Wear: Increased wear on one side is a typical sign of long-term misalignment.
