带轮靠摩擦力传动，在安装时，带必须张紧。但在工作一段时间后被拉长变松，容易打滑，必须重新张紧。如果两传动轮的中心距无法调整时，则必须使用张紧轮以保证正常传动而不致打滑。  张紧轮利用弹簧或油压等产生一个将皮带绷紧的力，使得皮带能以合适的压力压在工作皮带轮上。
The tension belt of a truck is a follower wheel pressed on the belt in order to change the Angle of the belt pulley or control the tension force of the belt. It is a tensioning device for belt drive. When the center distance of the belt cannot be adjusted, the tensioning wheel can be used to tighten the belt to change the wrapping Angle and control the tensioning force of the belt
The tension wheel is the tension device of the belt drive. When the center distance of the belt cannot be adjusted, the tension wheel can be used to tighten the belt. The tension wheel is a driving wheel pressed on the belt in order to change the Angle of the belt pulley or control the tension force of the belt, and is a tension device of the belt drive.
The pulley is driven by friction, and the belt must be tensioned during installation. However, after working for a period of time, it is stretched and loose, easy to slip, and must be re-tensioned. If the center distance of the two transmission wheels cannot be adjusted, the tension wheel must be used to ensure normal transmission without slipping.  The tensioning wheel uses springs or oil pressure to produce a force that tightenes the belt so that the belt can be pressed against the working pulley at the appropriate pressure.
The tension wheel is composed of friction unit, torsion spring, bearing, belt pulley and some components.
(a) compression spring preloaded pivot plate tensioner
(b) tensioning spring preloaded pivot plate tensioner
(c) torsion spring preload pivot plate tensioner
(d) eccentric bushing adjusting tensioner
The tension wheel is a tension device that regulates the belt wheel drive, so it is generally used in the engine of motors, automobiles, conveyors and lifting equipment. The tension wheel is mainly used for pulley drives whose center distance cannot be adjusted, such as V-belt drives.
Matters needing attention
1. The tension of the tension wheel can not be too small, too small will make the friction between the belt and the working wheel become smaller, and eventually lead to the belt slipping. Similarly, the tension wheel tension force can not be too large, too large tension force will increase the belt load, resulting in belt damage, while causing damage to the bearing of the working wheel.
2. The tension wheel should generally be placed on the inside of the loose edge, so that the belt is only subject to one-way bending, and it should also be as close as possible to the large wheel, so as not to excessively affect the package Angle of the small belt wheel. If the tension wheel is placed on the outside of the loose edge, it should be as close to the small belt wheel as possible. The groove size of the tension wheel is the same as that of the belt wheel, and the diameter is smaller than the diameter of the small belt wheel.
The current models of European trucks include for Scania, for Man, for Volvo,for ievco, for Mercedes, for daf ,for Renault, and trucks are mainly use for Foton, Shaman, howo and Dongfeng in China. Our caanass Auto parts company has been established for 20 years, especially to provide high-quality and affordable parts for European trucks, Chinese passenger cars, and Chinese trucks. Create value for customers “values. We Caanass auto parts, the current market is mainly Russia, Africa, Asia, Southeast Asia market, we have long-term partners, including dealers, buyers, factories, auto parts companies, auto repair shops, we have accumulated 20 years of auto parts sales experience. We strive to serve our partners. Our Caanass auto parts: chassis parts, body parts, electronic parts, engine parts, we have a professional team, product department, Marketing Department, sales department, we have complete models, OEM complete, good quality, professional service for you. Our caanass Auto Parts will offer product promotions and promotions from time to time to provide you with quality and affordable auto parts.
caanass’s tension belt part sapre:
1. Good quality
2. Appropriate tension
3. Complete OEM, excellent quality