What are the failure modes of belt drives?
The failure modes of the belt drive are as follows:The fatigue fracture belt: the stress on the cross section of any belt with the belt running and cycling. When the stress cycle reached a certain number, that is, after running for a certain period of time, the belt appeared in the local fatigue crack delamination, and then appeared loose or even fracture, resulting in fatigue damage, loss of transmission capacity.
Wear of working face of beltBecause of the elastic slip and slippage of the belt, the relative sliding between the belt and the pulley causes the working face of the belt to be worn out. Therefore, the design principle of belt drive is that the full capacity of the work should be avoided without slipping, and the transmission is required to have enough fatigue strength to ensure a certain service life. That is, under the condition of no skidding, the belt has a certain fatigue strength and life.
SlipWhen the work load exceeds the maximum effective tension of belt drive, belt and a small belt pulley along the working face relative sliding, can not transfer the movement and tension, resulting in transmission slip failure.
