Belt slippage. The reason is that the friction force of the roller is reduced, the overload or the adhesive tape is stuck.
(1) The tape is elongated due to plastic deformation after a period of use, resulting in insufficient tension of the tape, friction traction and slippage.
(2) When the contact surface between the belt and the driving drum is immersed in mud and dust, the friction coefficient decreases sharply and the belt slips.
(3) A large number of idlers do not rotate due to damage of idlers, winding of sundries and buried pressure of materials. The resistance of damaged tapes or joints increases when passing through the idlers, the belt deviates seriously, and the excessive loading of cargo causes the belt resistance to slip.