ABSTRACT
The power required to drive the belt is a function of effective tension produced by the resistance forces. The overall resistance is made up of the following resistances: main resistances, secondary resistances, special main resistances, special secondary resistances and slope resistance. The force required to restrain a downhill regenerative conveyor is transmitted in exactly the same manner. In order to transmit power, there must be a difference in the tensions in the belt as it approaches and leaves the drive pulley. The effectiveness of the conveyor drive is dependent upon a number of factors, principally the effective tension, the friction between the belt and the drive pulley and the angle of wrap, or arc of contact, of the belt to the pulley. Maximum belt tension occurs when the belt is conveying the design load from the feeding point continuously to the point of discharge.
