Drive pulleys are found inside supermarket conveyor belts.
A drive pulley is a pulley that drives or moves a conveyor belt. A good example of a drive pulley is the drive belt and pulley that turn the rotating brushes on an upright vacuum. In vacuum cleaners, the drive pulley is made up of a drum made up of a wheel and an axle. Pulleys can have belts, chains, cables, or ropes that run over a wheel, which sometimes has a slot to accommodate them.
A drive pulley is a pulley that drives or moves a conveyor belt.
A pulley is one of six simple machines, along with an inclined plane, lever, wheel and axle, wedge, and screw. Mechanically speaking, a pulley will change the direction of the applied force and transmit that rocking motion to something else. A pulley system can also multiply force.
A drive pulley, in particular, is a driven wheel and axle that moves a conveyor belt. Also called conveyor belts, a conveyor belt is a loop of material that runs between two or more pulleys: drive pulleys and sheaves. The purpose of conveyor belts is to move objects along the belt to another location.
In the conveyor belt system, force is applied to a drive pulley and an idler pulley is a pulley that has no force. Drive pulleys will cause the belt to move towards them, while the idler pulley simply turns and allows the belt to move. Power can be derived from a motor or supplied manually. The larger the materials or goods moved by the conveyor built by the pulley, the stronger the motor or other power source that drives the drive pulley.
There are two types of conveyor belts that use drive pulleys. This includes belts that handle materials, such as moving products or boxes through a factory, and those that handle bulk materials, such as coal or grain. Material conveyors are usually found indoors, such as in a supermarket, to move items to be purchased at the checkout. Conveyor belts for bulk material are normally located outdoors.
Transmission pulley driven belts usually have two or more layers and are usually made of rubber. The inner layer is the strong layer, called the carcass, which is next to the pulley, and the outer layer is called the cover. For added strength, the casing is usually made of cotton or plastic mesh and the cover is rubber or plastic.