I. Adjusting the Tensioning Device (Applicable to both no-load and heavy-load misalignment) When the conveyor belt continuously shifts to the same side under both operating conditions, it indicates uneven tension on both sides:
Follow the principle of "tightening rather than loosening," appropriately tighten the tensioning mechanism on the misaligned side, or loosen it on the opposite side;
Adjust the screw, counterweight, or hydraulic tensioning system gradually until the tension on both sides is balanced.
If the misalignment direction is inconsistent, fluctuating left and right, it may be due to overall belt slack, requiring full tensioning.
II. Correcting the Roller Position (Applicable to misalignment at the head or tail rollers) If the roller axis is not perpendicular to the conveyor's centerline, it is one of the main causes of misalignment:
Head Roller Adjustment Method: If the belt misaligns to the right, move the right bearing seat forward, or the left bearing seat backward; conversely, if it misaligns to the left, move the left bearing seat forward and the right bearing seat backward.
Tail Roller Adjustment: The method is the opposite of the head roller adjustment; pay attention to the directional difference.
All drive and redirecting rollers must be installed perpendicular to the longitudinal centerline of the conveyor, with a deviation controlled within ±1mm.
III. Adjusting Idler Roller Position (Applicable to Mid-Range Deviation)
When deviation occurs in the middle section of the conveyor, it can be corrected by adjusting the idlers:
Move the idler roller assembly on the deviating side forward 1-2cm along the running direction, or move the idler roller on the other side backward;
The idler roller mounting holes are designed as elongated holes during manufacturing for easy on-site adjustment.
For sections with frequent deviation, self-aligning idler roller assemblies can be installed to achieve dynamic deviation correction.
IV. Optimizing Material Drop Position (Applicable to Deviation under Heavy Load)
If there is no deviation under no load but deviation under heavy load, it is often due to uneven material loading:
Adjust the guide chute or receiving hopper to ensure that the material falls evenly on the belt centerline;
Add buffer idlers and baffles to reduce impact and lateral forces.
V. Removing Adhesives and Inspecting Component Condition: When materials such as coal slurry or mineral powder adhere to the surface of the rollers or idlers, it can cause a local increase in diameter, leading to the belt shifting to that side. Regularly clean and check the idlers to ensure they rotate freely, preventing jamming and abnormal friction.
