Such pulleys can also take over the function of a guide at the same time, so that the belt does not jump off the pulley. Idler pulleys can also be used for long belt lengths to reduce belt vibrations.
Idler pulleys are used, for example, in multiple drives in which one driving pulley drives several other pulleys.
If such pulleys are merely used to deflect the belt, then these are generally referred to as idler pulleys. Tensioning pulleys also serve to cushion heavy load changes. In addition, the wrap angle can be increased by tensioner pulleys. Tensioner pulleys are also often used for long belt lengths to prevent excessive belt vibration. The belt tension can be maintained during operation, for example, by means of tensioner pulleys. Tensioning systems are used to generate and maintain the belt tension and thus ensure reliable power transmission! Tensioner, idler and guiding pulleys This is hardly possible when the belt is under tension, so that the tension must be removed when the belt is changed and must be tensioned again after installing by means of tensioning devices (belt tensioners). It must also be borne in mind that a belt will have to be serviced over time and therefore have to be removed from the pulley and remounted. For this reason, belt drives must often be kept on tension by so-called tensioning systems. Despite the pre-tension (initial tension), however, the belt tension will change during operation due to plastic deformation or temperature. The importance of the belt tension for power transmission has already been explained in the article How does a belt drive work?.
0 kommentar(er)
