The Forestry Forum
General Forestry => Sawmills and Milling => Topic started by: bandmiller2 on March 16, 2012, 10:03:27 PM
Has anyone here used multiple twisted V belts to change rotation of an engine/PTO to saw arbor.The belts would have to be longer than normal,just may be a valid way to use a tractor PTO to run a right hand mill. Frank C.
the old john deere 110 lawn mower i believe did it to drive the mower deck from a horizontal shaft engine.
YES! it can be done. its going to take 2 or 3 pulleys and idlers to make it happen!
generally belt life is short.
The idea does have some merit. All it would take is a vertical jackshaft in between the drive and driven pulleys.
Another solution may be a flat belt, as you can give them a 180 degree twist with no problems.
Alan
Simplicity used something along those lines on their PTO setup/attachments. They used an idler in between the belts where they crossed each other to prevent the belts from rubbing....Looks odd but works well.
Member Sprucegum, I think, has a setup like that. He's posted pictures of it on here. Maybe a search will turn it up for you. It seemed to work fine.
Greg
With enough guides and rollers I've seen some belts go in all directions, but it often looks like the week point of a system, would a friction tire work better or i suppose if you had a long enough shaft the tractor could be front to the mill and off to one side to allow straight belts.