Why does the tensioner need to add a resistance mechanism?

The tensioner requires a certain amount of torque in order to maintain proper belt tension during actual use, avoid belt slippage, compensate for belt wear and elongation caused by aging.

When the belt tensioner is running, the moving belt may provoke vibrations in the tensioner, causing premature wear of the belt and the tensioner.

The tensioner is a consumable part of the automobile and other parts. The belt is easy to be stretched for a long time. Some tensioning wheels can automatically adjust the tension of the belt. In addition, the tensioning belt runs more smoothly. The noise is small and it can prevent slipping.

For this reason, the resistance mechanism is added to the tensioner, but the parameters affecting the torque and resistance of the tensioner are many, and the influence of each parameter is not the same, so the relationship between the components of the tensioner and the torque and resistance is very complicated. .

Torque change directly affects the change of resistance, and it is the main influencing factor of resistance. The main factor affecting the torque is the parameter of the torsion spring. Appropriately reducing the diameter of the torsion spring can increase the resistance value of the tensioning wheel.

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