Relationship between automatic aligning of elastic belt and roller shape

Abstract

To clarify the parameters of a crown roller and a tapered roller that affect the automatic aligning of an elastic belt, we propose an analytical method that can quantitatively predict the movement of the belt along the width direction. In this analytical method, we assumed that the movement of the belt along the width direction occurs owing to the inclination of the belt generated by its velocity distribution. The validity of the proposed analytical method was examined by comparing the calculated and experimental results of movement along the width direction. Good agreement was noted between the calculated and experimental results. Furthermore, it was confirmed that the automatic aligning of the belt is significantly affected by the tilt of the belt generated by the velocity distribution along the width direction. Additionally, it was observed that the radius of curvature of the crown roller and the taper angle of the tapered roller affect the movement along the width direction, whereas the velocity has no effect. Finally, we clarified that belt width affects the movement along the width direction in the case of the crown roller, whereas it has no effect in the case of the tapered roller.

Keywords

• elastic belt
• automatic aligning
• crown roller
• radius of curvature
• tapered roller
• taper angle
• radius of roller
• analysis method