What can be done to prevent material build up on pulleys?
Increase belt tension if the belt is under tensioned. C. Material build-up on the pulley face or conveyor structure. Clean system, improve material containment, install cleaners, check skirting, install belt scrapers in front of pulleys. D. Material is getting trapped between belt and pulleys. Improve containment at load point.
What to look for when replacing a pulley?
Check fit of inner race to ensure against bearing distortion. Check level and alignment at pulley shaft. Check shaft for straightness. Remove pulley to replace shaft. Inspect bearings for damage and replace as necessary. Tighten bearing lock mounting bolts. Check level and alignment of pulley shaft. Belt tension too low.
What causes excessive deflection of a pulley shaft?
Excessive shaft deflection occurs when shaft diameter is improperly sized for the demands of an application. Although it may appear as a potential solution, selecting a shaft material with greater strength characteristics will have virtually no effect on its stiffness as it pertains to shaft deflection.
What do you call the supporting shell of a pulley?
In the case of a pulley supported by a frame or shell that does not transfer power to a shaft, but is used to guide the cable or exert a force, the supporting shell is called a block, and the pulley may be called a sheave. A pulley may have a groove or grooves between flanges around its circumference to locate the cable or belt.
What do you need to know about a drive pulley?
A drive pulley is a pulley that is attached to a power source, that when in use puts force on a belt (or cable or chain). The belt is connected to the object being driven, which will then spin. The belt is connected to the object being driven, which will then spin.
What causes belt to slip on idler pulley?
Over time, as the pulley spins against the belt, both components will eventually start to wear. This may lead to visible scoring marks on the surface of the pulley, as a result of contact with the belt. Eventually the pulley and belt will wear to the point of reducing tension, which may lead to the belt slipping. 2. Belt squealing
Excessive shaft deflection occurs when shaft diameter is improperly sized for the demands of an application. Although it may appear as a potential solution, selecting a shaft material with greater strength characteristics will have virtually no effect on its stiffness as it pertains to shaft deflection.
How is a drive pulley connected to a hand crank?
This could be a motor, engine, or even a hand crank. Driven Pulley: A pulley that is not attached to a source of power, but is connected to the [drive pulley] by a belt. Pulleys in power transmission achieve mechanical advantage when the drive pulley has a different diameter than the driven pulley.