Driving V-belt with an H's PTO

I have a shredder I can mount on my 3-pt hitch which I'd like to drive with my H's PTO. The shredder is driven by a 3/4" belt pulley. The way it would have to sit, when held by the 3-pt hitch, the pulley rotation plane is 90 degrees from the rotation plane of the PTO shaft (the shredder's pulley rotation plane is parallel with the length of the body of the tractor). What attachments or fabrications do folks recommend to get the PTO to drive this mechanism? Thanks for your time.

If I'm understanding your description properly, you'd use what's known around here as a "mule drive". It'll allow a V-belt to run from a vertical drive pulley, around a 90-degree bend to a horizontal driven pulley.

John Deere 316/318 garden tractors use them to run the mower deck.

Three items.
The shredder has an optimal RPM when used, This is not likely to be 540rpm of the PTO.

The PTO should drive shaft to the shredder, not a belt. Belts on three point systems will not be able to be adjusted correctly, as changes in hitch location will change the tension.

The use of a right angle gear box with an appropriate ratio to drive the shredded would do it.

I would consider using a separate engine on the shredded.

If you are good with fabrication, a differential with its spider gears welded, shortened, with one axle cut off and capped over, could be used. Driven from the axle , and power taken from the pinion, would increase speed, and make a right angle. This is however an engineering task, with welding and structural challenges. JimN

The pic at the link shows the general idea as used on lawn equipment.
mule drive

I don't own a tractor with a 3pth but I imagine they are kinda sloppy. That means you can't control the belt tension.

Here are two examples of PTO adaptations I have built.

<a href="http://s140.photobucket.com/albums/r16/Wardner/?action=view&current=creeper080.jpg" target="_blank"> </a>

<a href="http://s140.photobucket.com/albums/r16/Wardner/?action=view&current=650aiarcompressor012.jpg" target="_blank"></a>

If you haven't got the capability to do much fabrication, you might want to consider hydraulic power. That would be a PTO hydraulic pump like a Prince and a direct coupled hydraulic motor on the shredder.

Thanks Janicholson and Fawteen (all I've read so far). I was expecting to use the positioning of the 3-pt to establish the belt tension and the size of the pulley driven by the PTO to determine the RPM. I may be able to replace the shaft of the shredder with one that is longer and thus allow for a long drive shaft off the PTO but I'd rather find a method to drive a belt. Those "mule drives" look like an interesting solution. Thanks for the diagram. Anywhere there's a picture of the same thing?

Those certainly look attractive. I agree, the direct coupled hydraulic motor on the shredder may be the way to go. This would be my first attempt at anything like that but, I would imagine, the speed could be controlled by some sort of flow control?

A few questions:

Do the pulleys in the first image stick out beyond the rear edge of the rear tires (sorry if this is obvious). Did you fabricate that first one to get a reduction in the RPM?

What are you driving with the second rig?

If you go hydraulic, don't use a flow control valve. Just make sure that you size the pump and motor for the RPM you need or is recommended by the shredder mfg.

In the first picture, the extension can be made to any length. I don't think it extends past the tires but is probably close. A 45 HP high pressure water pump bolts to an adjustable base that in turn is bolted to the red eztension pad. Max speed of the pump is double 540 rpm.

The second picture is my 650. The air compressor is a Detroit Diesel air brake compressor. I use it to control a hydraulic gypsy head winch via a foot pedal. The winch elevates a 900 lb drop hammer.

Your easiest and cheapest solution is to mount the shredder as if it were a front mounted cord wood saw (buzz saw). Run it with the belt pulley.

Here are some more pictures,

<a href="http://s140.photobucket.com/albums/r16/Wardner/?action=view&current=creeper060.jpg" target="_blank"></a>

<a href="http://s140.photobucket.com/albums/r16/Wardner/?action=view&current=gates085.jpg" target="_blank"></a>

<a href="http://s140.photobucket.com/albums/r16/Wardner/?action=view&current=hydraulicpump054.jpg" target="_blank"></a>