What is the role of a pulley on a car?
The belt drive is a type of friction drive. Work principle of belt drive is set on the driving wheel and driven wheel, thus band and pulley contact surface has the positive pressure, when the prime mover drive active cycle turns, the belt and driving wheel creates friction between contact surface, the driving wheel affects the belt, and belt and affects the driven pulley, the torque on the drive shaft and the movement to the driven shaft. From the principle of belt transmission, the belt wheel is known to carry the torque and motion through the belt.
The mechanical drive is divided into two types: meshing and friction. The advantage of meshing drive is that the work is reliable, the life length is long, the transmission ratio is accurate, the transmission power is large, the efficiency is high (the worm drive is excluded), the speed range is wide. The drawback is that the precision of the manufacturing installation is higher. Friction drive work smooth, low noise, simple structure, low cost, has the overload protection ability, the disadvantage is that outer profile size larger, transmission ratio is not accurate, low transmission efficiency, short life element.
The common types of mechanical transmission are friction wheel drive, drive, chain drive, gear drive, worm gear, screw drive and so on. The belt transmission is divided into flat belt transmission, V belt drive, multi-wedge belt, round belt, tooth belt and so on. The wheels used in the drive to install the belt are called the belt wheel. It's called pulley. The belt wheel is installed and used in pairs, one is the active wheel and the other is the wheel.
I don't know if you're talking about the pulley on the engine. It depends on what kind of car you are. You have a general distribution of motor belts and then you have a generator belt tightening wheel, a idler wheel Timing belt tightening wheel and idler wheel Then there is the air conditioning compressor which has a roulette wheel on it, which is the compressor clutch.
