Advantages: when the deviation when the quantity is little, roller rotation angle of the smaller side of the conveying belt deviation, produce lateral thrust is small; the deviation is large, the roller rotation angle deviation side is larger, on the conveyor belt to produce larger lateral thrust. So, as to realize the automatic adjustment of different feed. Retaining partial vertical roll another role, but also in the deviation of serious cases, direct stop and limit the belt deviation, a common role in aligning roller, conveyor belt to run prompted gradually, does not produce the phenomenon of the belt out of excellent.

Disadvantages are: general belt deviation range is not too large, the available slot type deviation adjusting supporting roller automatic adjustment. But as the beam intensity is weak, in large volume will appear on the beam bending, deformation phenomenon, affecting cardiac effect automatically adjustable; in addition, the rotating shaft and the base adopts a gap sliding fit, bearing is not installed, the friction resistance is large, plus dust and impurity invasion, prone to jamming, rust caused no rotation flexible. Vertical roll will damage the conveyor belt edge.