Road construction and mining machines are in the category of heavy industrial machines. Different types of road construction machines include loaders, excavators, graders, backhoes, dump trucks, and bulldozers, which are used in mining and construction industries in addition to road construction. Connecting belts on road construction machines can be classified as power transmission belts.
In fact, two main types of power transmission belts are used in diesel engine connections of road construction machines, which include timing belts تسمه تایمینگ and V-belts. The timing belt is used to adjust the opening and closing timing of smoke and air valves and the V-Belt belt is used in several different points of the engine of road construction machines and in the joints of the pulleys.