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Boomer
04-29-2002 18:51:45
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Re: Hammer mill Conversion in reply to HG, 04-28-2002 21:10:59
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HG, I can only tell you what I did to use mine to grind corn and wheat off the PTO of a Case VA and leave it up to you to decide what works best for you. I like to tinker with old farm machinery and I have a very complete shop, so when I was confronted with the same problem as you, I decided to use the rear axle from an old chevy, it needs to turn around 3 to 1 on the gear ratio. Remove the brake drums, linings and back plates. Open the differential, remove the spider gears and pitch'em, then weld the axle gear to the carrier housing, reinstall the spider shaft. Make sure you use the correct axle to turn your mill in the proper rotation! You only need to weld the one you use. Attach a universal and long pto shaft to the end of the axle hub and I'm using a 13 inch belt pulley splined to a front transmission shaft that is attached to the drive shaft yoke. I built a small 5 foot wide trailer using a mobile home tongue and axle to mount the mill on with the drive axle hanging underneath from half inch allthread. A short belt runs directly up from the 13 inch pulley to the 5 inch on the mill, I have angle iron sway bars on each end of the axle to counter torque but still allows the axle to be raised or lowered to adjust the belt tension. I fashioned a carrier bearing using a pilot bushing on the outside of the 13 inch pulley and it also has to be adjustable for heighth and to apply a little pressure to the pulley. The elevation of my mill from the ground using this arrangement puts the bottom of my cyclone just right for me. My mill is turning 2800 rpm with the old Case at a tractor PTO speed I'm comfortable with, It may be a couple hundred RPM slow but it grinds great, the pigs are happy with the result! and I'm happy not having to string out a long belt. Here is the usual word of caution! Although this is not difficult, Only YOU can determine your skills and ability and safe workmanship is essential on PTO driven equipment! This is not a project to be sloppy on! But if your up to it, go for it, It was a fun project. Happy Grindige, Boomer
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