Here's why
Belt mistracking is one of the most common failures when belt conveyors are running. There are many reasons for mistracking, the main ones being low installation accuracy and poor daily maintenance. During the installation process, the head and tail rollers and the intermediate rollers should be on the same center line as far as possible, and parallel to each other to ensure that the conveyor belt is not biased or less biased. In addition, the strap joints should be correct and the circumference on both sides should be the same.
Solution:
In the process of use, if there is deviation, the following checks should be made to determine the cause and make adjustments. The parts and treatment methods that are often checked when the conveyor belt deviates are:
(1) Check the non-coincidence between the transverse centerline of the roller and the longitudinal centerline of the belt conveyor. If the coincidence value does not exceed 3mm, it should be adjusted by using the long mounting holes on both sides of the idler set. The specific method is which side of the conveyor belt is deflected, which side of the idler set moves forward in the direction of the conveyor belt, or the other side moves back.
(2) Check the deviation value of the two planes of the head and tail frame mounting bearing seats. If the deviation of the two planes is greater than 1mm, the two planes should be adjusted in the same plane. The adjustment method of the head drum is: if the conveyor belt deviates to the right side of the drum, the bearing seat on the right side of the drum should move forward or the left bearing seat move backward; If the belt deviates to the left side of the pulley, the housing on the left side of the pulley should be moved forward or the right housing should be moved backward. The tail drum is adjusted in the opposite way to the head roller.
(3) Check the position of the material on the conveyor belt. Material that is not centered on the conveyor belt cross-section will cause the conveyor belt to deviate.
If the material is biased to the right, the belt is deviated to the left and vice versa. When using, the material should be centered as much as possible. In order to reduce or avoid such belt mistracking, a baffle plate can be added to change the direction and position of the material.