1. Uneven tension causing belt misalignment
Symptom: Belt shifts to the same side under both no-load and heavy-load conditions.
Solution: Adjust the tensioning device to tighten the loose side appropriately and loosen the tight side slightly; Follow the principle of "gradual adjustment" to avoid over-tensioning and damaging the bearings.
2. Misaligned roller installation
Symptom: Belt shifts at the drive or redirecting roller.
Correction method: If the belt shifts to the right → move the right bearing housing forward and the left side backward;
If it shifts to the left → move the left side forward and the right side backward;
Adjust the tail roller in the opposite direction to the head roller.
3. Localized belt misalignment caused by idler roller assembly
Characteristics: Misalignment only occurs in a specific section of the idler roller assembly.
Solution steps: Check if the idler rollers are aligned and rotate freely; If the belt is misaligned to one side, move the idler roller assembly on that side forward 1-2 cm in the running direction, or move the other side backward; Use the elongated mounting holes for fine-tuning to create a guide angle to push the belt back to center.
4. Uneven Material Drop Due to Eccentricity
Phenomenon: Deviation only occurs under heavy load.
Improvement Measures:
Adjust the position of the feed hopper to ensure the material falls in the center;
Install guide plates or baffles to reduce lateral impact.
5. Material Adhesion on Rollers or Idler Rollers
Cause: Coal residue, accumulated adhesive, or other foreign matter causes localized diameter increases and tension increases.
Solutions: Stop the machine and clean the adhered material;
Install V-type sweepers or gravity-feed cleaning brushes to prevent further material accumulation.
6. Belt Structure Issues
Manifestations: Misaligned joints, severely worn or deformed edges.
Solutions: Re-vulcanize the joints to ensure perpendicularity to the centerline;
Replace deformed or damaged conveyor belt sections.
7. Use of Automatic Deviation Correction Devices
Self-aligning Idler Sets: Such as vertical rollers and trough rollers, which can automatically generate lateral thrust to correct the direction when deviation occurs;
Intelligent System: Employing AI visual detection + differential control system, it identifies the deviation in real time and automatically adjusts the deviation in conjunction with the actuator;
Patented technologies such as CN120070571A utilize target segmentation models to calculate the real-time deviation amount, achieving high-precision control.
