The tightening wheel is a belt tensioning device used in the automobile transmission system.

Product introduction

The tightening wheel is mainly composed of a fixed shell, tension arm, wheel body, torsion spring, rolling bearing and spring sleeve, etc., which can automatically adjust the tension force according to the different tightness of the belt, so that the transmission system is stable, safe and reliable.

The tightening wheel is a wearing part of automobile and other spare parts, the belt is easy to wear for a long time, the belt groove will be stretched after grinding deep and narrow, the tightening wheel can be automatically adjusted according to the wear degree of the belt through the hydraulic unit or damping spring, in addition, the tightening wheel belt runs more smoothly, less noise, and can prevent slipping.

The tension wheel belongs to the routine maintenance project, generally 6-80,000 kilometers need to be replaced, usually if the engine front end has abnormal howling or the tension wheel tension mark location deviation center too much, on behalf of the tension force is insufficient. It is recommended to replace the belt, tensioning wheel, idler wheel, and generator single wheel when the front end accessory system is abnormal at 60,000-80,000 km.

Effect

The function of the tightening wheel is to adjust the tightness of the belt, reduce the vibration of the belt during operation and prevent the belt from slipping to a certain extent, so as to ensure the normal and stable operation of the transmission system. Generally, it is replaced with collaborative accessories such as belts and idlers to avoid worries.

Structural principle

In order to maintain proper belt tightening force, avoid belt slip and compensate the elongation caused by belt wear and aging, a certain torque is required in the actual use of the tightening wheel. When the belt tension wheel is running, the moving belt may cause vibration in the belt tension wheel, which can cause premature wear of the belt and tension wheel. To this end, a resistance mechanism is added to the tightening wheel. However, because there are many parameters affecting the torque and resistance of the tightening wheel, the influence of each parameter is not the same, so the relationship between the parts of the tightening wheel 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, and the main influencing factor of torque is the parameter of torsion spring. Properly reducing the middle diameter of the torsion spring can increase the resistance value of the tension wheel.