Has anybody tried designing a multiple stage reduction gear
using synchronous belts and pulleys?
I have a 1/3HP 24VDC motor turning at 2500 RPM. I need to
reduce that speed to approximately 42 RPM. This would be done in approximately
4 stages.
I have not seen anything commercially available using
synchronous belts so I'm considering building my own.
The benefits I see are as follows:
1)
Relative high efficiency compared to a worm
reduction. A single stage synchronous belt system is approximately 98%
efficient making a 4 stage reduction about 92% efficient.
2)
No lubrication is required for the life of the assembly.
3)
Relatively no heat generated.
4)
The reduction assembly would be simple to design
and build.
5)
Relatively unsophisticated machinery is required
to make the parts.
6)
The reduction assembly would be easy to repair.
The only down side I've discovered so far is the high prices
for the synchronous pulleys. These pulleys are basically extruded Aluminum
shapes that appear to be grossly overpriced.
Does anyone see a downside that I have not considered?