In Order To Maintain Proper Belt Tension During The Actual Use Of The Tensioner

In order to maintain proper belt tension during the actual use of the tensioner, to avoid belt slippage, compensate for belt wear and elongation caused by aging, a certain amount of torque is required. When the belt tensioner is running, the moving belt may induce vibration in the tensioner, causing premature wear of the belt and the tensioner. To this end, a resistance mechanism is added to the tensioner. However, because there are many parameters that affect the torque and resistance of the tensioner, and the influence of each parameter is also different, the relationship between the components of the tensioner and the torque and resistance is very complicated. The change of torque directly affects the change of resistance, and is the main influencing factor of resistance. The main factor of influencing torque is the parameter of torsion spring. Properly reducing the diameter of the torsion spring can increase the resistance value of the tensioner.

Calculation method of tension frequency of tensioner bearing

Failure frequency of outer ring of tensioner bearing: BPFOr≌0.4Nn

Failure frequency of inner ring of tensioner bearing: BPFIr≌0.6Nn

Failure frequency of tensioner bearing cage: FTFr≌0.4N

Failure frequency of outer ring of tensioner bearing: BPFOe≌N (0.5n-1.2)