Wedge structure

Variety specifications

Depending on the raw materials used and the processing methods, the V-ribbed belt can be divided into two types: polyurethane (using casting process) and rubber type (using molding process). The rubber type V-ribbed belts are divided into H, J, K, L, and M specifications according to the sectional size from small to large.

New varieties

As the performance of automobiles continues to change and improve, new varieties of V-ribbed belts are constantly being introduced.

(1) The wedge of the toothed V-ribbed belt is cut into a tooth shape, similar to the trimmed V-belt. This can improve the flexibility of the belt and accelerate the heat dissipation to meet the heat dissipation requirements of the engine after the vehicle speed is increased. According to the research of Goodyear, the damage of the toothed V-ribbed belt after 167h under high temperature conditions is only equivalent to the damage of the ordinary V-ribbed belt after 66h under the same conditions.

(2)Flocking V-ribbed belts A major disadvantage of conventional V-ribbed belts is that they are noisy during operation, especially on rainy days. After the flocking layer is applied to the wedge, the noise is greatly reduced. Flocking can be obtained from aramid fibers.

(3) Elastic V-ribbed belts Some household appliances (such as washing machines, dry cleaning machines and fitness equipment) often need to adjust the distance of the transmission during use. Therefore, the multi-ribbed belts should be equipped with sufficient elastic deformation adaptability to ensure There is no need to frequently adjust the distance during the entire use of the machine.

(4) EPDM rubber V-ribbed belt With the continuous increase of the speed of the car, the temperature of the engine part of the car is also rising, requiring the tape to withstand a high temperature of 170 ° C in an instant. The neoprene used in the past has been overwhelmed. Therefore, EPDM rubber began to enter the V-ribbed belt field. However, the ethylene-propylene rubber V-ribbed belt is not ideal for high temperature resistance, tear resistance, wear resistance and dynamic performance, and needs further improvement and improvement.