Gear drive or belt drive?
The crumbler’s transmission can be gear drive or belt drive. Belt drive is a method of transferring rotary motion between two shafts. It includes one pulley on each shaft and one or more continuous belts over the two pulleys. Instead, gears are machine elements used to transmit rotary motion between two shafts, normally with a constant ratio. The pinion is the smallest gear and the larger gear is called the gear wheel.
The two systems have pros and cons. Let's see them in comparison:
|Gear drive||Belt drive|
|Requires less space compared to belt drive.
||Requires more space compared to gear drive.|
|Low friction loss compared to belt drive, therefore higher transmission and more efficiency.||High friction loss compared to gear drive, therefore lower transmission and less efficiency.|
|Requires less maintenance, but maintenance cost is relatively dearer and cumbersome.||Requires high inspection and maintenance, but maintenance cost is relatively cheaper and convenient.|
|Much greater life expectancy than belt drives.||Low life expectancy than gear drives.|
|Complicated equipment design, as tolerances are very much important.||Easy, flexible equipment design, as tolerances are not important.|
|No isolation from shock and vibration between driver and driven system.||Isolation from shock and vibration between driver and driven system.|
|Requires regular lubrication.||Requires relatively less or no lubrication.|
|Noisy in operation.||Very quiet in operation.|
In La Meccanica’s crumblers the transmission between the motor and the fixed rolls is belt driven.