Help me design a leaf-collection bucket!

   / Help me design a leaf-collection bucket! #1  

davesisk

Platinum Member
Joined
Apr 18, 2002
Messages
862
Location
Raleigh, NC USA
Tractor
Massey-Ferguson MF 1220
Hey Folks:

I've got a small CUT with 48" FEL bucket, and I'm trying to figure how to add something that will make leaf cleanup (some of which is in tight areas) remarkably easy. /forums/images/graemlins/cool.gif I've looked at some of the towable leaf vacuum/shredders, they're ridiculously expensive and I think they're too bulky to work for me. I need something I can mount completely onto the 3PH or mount in the bucket in front. I think the front mount might be the better option, as I can simply dump then over the fence and in the woods with no difficulty.

So, I'm thinking of building a large sheetmetal bucket (with some angle iron as frame to help keep it rigid) that will fit into the 48" bucket, but extends past the front of it and flares out to the sides to make it wider. Think of something like a flared chute kind of idea. I would probably just use pins to pin it into place.

The bucket itself isn't difficult to fab. I'm now considering how to get leaves into the bucket. Two choices: vacuum or sweeper tines? I'm thinking the cheapest and most reliable alternative is probably to use some sort of tines on a rotating shaft across the front of the leaf bucket to sweep the leaves in. Think of the tow-behind lawn sweepers that you can pull behind a lawn tractor, now imagine something like that mounted on the FEL in front. I'm thinking small and fairly flexible tines...they don't need to be incredibly heavy, this is just leaves we're talking about (maybe an occasional branch or two)

So, the biggest question right now would be how to best turn the tines. The MF1220 I have has a 2000 rpm mid-pto that points forward (designed to run a mid-mount mower or snowblower to my understanding). The other options include turning the tines with a small hydraulic motor that runs off the tractor hydraulics, or a mid-size 12V electric motor that runs off the tractor electrical system, or I could put a small gasoline engine on there (like something off a leaf-blower, etc). I suppose I could even attach a cheap alternator to the mid or rear PTO and run an electric motor off that, or use a pto pump and run a hydraulic motor off that, but both those seem to be getting to complicated. I think it would be really difficult to actually run the tine motor off the mid-PTO directly...I'd have to disconnect the driveshaft everytime I wanted to go dump the leaves. I'm not crazy about using a small 2-stroke gas engine either...I've already got a 20hp diesel to provide power. It seems like the best two options are either running a hydraulic motor off the tractor hydraulic system, or running an electric motor off the tractor electrical system.

Hydraulic motors tend to generate a lot of heat in the hydraulic fluid that cylinders do not. Do you think I'd risk doing any damage to the tractor hydraulic system by running a small hydraulic motor off of it?

Same question for a electric motor...think I'd run any chance of damaged the tractor electrical system by running an electric motor off of it?

The other detail I've got to figure is how to get the tines out of the way when I want to dump the leaves. First thought would be to simply add a small hydraulic cylinder to lift the tines out of the way while dumping the leaves. Or, I suppose I could do that manually...the tine shaft and drive motor to have to attached to a bar that I can raise up and put pins in. I like the hydraulic approach here...I could raise the tine shaft and dump the leaves without even getting off the tractor, but I'd also have to plumb in another hydraulic valve to operate this part of the contraption. If I go the hydraulic motor route, I'd also need to plumb in a motor speed control valve or something similar.

One final thought. I'm wondering if it would be a good idea to have a slotted bar that the tines turn through. I'd imagine leaves are going to stick onto the tines during use (just like they do with a hand rake). I'm thinking that having the tines turn through a slotted bar would not only push leaves off the tines, but would also actually do some minimal shredding to the leaves.

I'm thinking I'd also need to put 4 swivel adjustable pneumatic casters on it, one at each corner, so I could adjust the height precisely enough that I snag the leaves without ripping up all the grass underneath the leaves.

Any other thoughts or suggestions? What do you think of the idea so far?

Any suggestions on materials and where to get them? I've probably got enough sheetmetal to fab the bucket. I could simply use pipe or tubing for the tine shaft. I can get all the hydraulic stuff and/or probably suitable electric motor from a combination of Northern Tool and Surplus Center. Any suggestions on what to use for tines? They need to be sturdy enough that small branches won't bend them, but I also don't want to rip up all the turf while sweeping the leaves in! I'd imagine there's some harvesting equipment that works in a similar way, although I'm not at all familiar with any of the big stuff like that.

I suppose it might be easier to design this to mount to the 3PH and be powered off the PTO, but then I lose the ability to lift it 6' high to dump it!

Maybe I'd be better off to just get one of the tow-behind lawn sweepers and mount it to the bucket? They generally have tines that are powered by rolling it.

Let me know your thoughts on this one!

Dave
 
   / Help me design a leaf-collection bucket! #2  
I imagine you're planning to make the leaf holder pretty big, will the tines at the ground level allow the leaves to fill the box? Most of the gather-type leaf systems seem to use a longer flatter box, rather than taller narrower. I would think a blower type would be better, mulches better too. As for driving the times, a mechanical linkage would be best, a small gas motor would be my second chioce, not electric. To get an electric motor strong enough would require you to upgrade your alt/battery, I'd think.
Interesting project, let us know how you progress.........
 
   / Help me design a leaf-collection bucket! #3  
Agri-Fab ( see it here ) sells a 46" pull behind lawn sweeper (part number 45-0326) that does almost everything you want. It would be quite easy to adapt this unit to your front bucket. These units can be found all over the net for under $200.

The Agri-Fab unit uses four 23" x 4" brushes to pickup everything from leaves to pine needles. You can see the illustrated parts breakdown by clicking below. The brushes (#48600) cost about $6 each for the 46" unit.

If it were my project I would go this route and adapt an existing unit to my bucket. Cost would be less in the long run.

Lawn Sweeper parts breakdown
 
   / Help me design a leaf-collection bucket! #4  
Sounds like you have some excellent ideas, and hope you give some a shot to put this thing together. There are a lot of things to work out, and you are taking them in good order. Select a few options and try them out.
I've often thought that there was a market for a powered rake, somewhat like the side-delivery hay rakes, but with smaller tines for leaves. But even with a potential market, none are forthcoming, as near as I can tell. Cost to put one together vs what the buyer would pay for a leaf rake likely are too far apart for this to happen.
Wish you the best, and look forward to hearing about your progress.
 
   / Help me design a leaf-collection bucket! #5  
Dave,

When I run a FEL-based leaf collector through my processing unit (3 remaining brain cells) I come up with a pull-behind lawn sweeper. No other principle works better that I know of. Think about it. There are only 3 problems with a pull-behind sweeper. They get heavy and hard for your mower to pull as they get full, they have low capacity, they are pain to dump. Mating it with a FEL could solve all 3 problems.

The sweeper could be adapted to the FEL, and pushed while the FEL is in the float position. The original wheels may work OK, or could be upgraded. A sheetmetal collector on the FEL as you suggest would hold a lot more leaves than the original unit. Dumping would be way easier than the pull-behind unit. In fact, dumping would be fun!
 
   / Help me design a leaf-collection bucket! #6  
I have played with some ideas, but having never used one my expertise is lacking. I was wondering about speed. I was thinking a pto or hydro powered wheel would allow one to drive slower. My yard is a bit tight, but very wooded so I get a ton of leaves.
 
   / Help me design a leaf-collection bucket!
  • Thread Starter
#7  
Well, adapting one of the larger pull-behind units was my original thought. The issue is that the tines or rotary broom on the pull-behind units is connected to the wheels and turned by rolling it. If I adapted one of these to hook to the FEL, I'd always have to drive in a straight line, or the wheels would tear up the lawn. If I wanted to be able to turn with it, I'd have to replace the fixed wheels with swivel casters, but then I lose the means to power the broom or tines by rolling the sweeper. Hmmmm....

I suppose driving it in a straight line wouldn't be too bad of a design flaw. It wouldn't exactly be hard to pick it up when I needed to turn... /forums/images/graemlins/cool.gif

Thanks for the thoughts folks. So, it sounds like you guys do agree that a sweeper type deal is a much better choice than a vacuum type deal, eh? Also, I gather that using an electric motor is probably the worst option.

Keep the commentary coming!

Dave
 
   / Help me design a leaf-collection bucket! #8  
</font><font color="blue" class="small">( Also, I gather that using an electric motor is probably the worst option.)</font>

Why? Using a 12v motor and the proper gearing would probably be the cheapest way to spin the broom. However, you have got to make sure you have enough capacity with your alternator to keep the motor from draining the battery.

This is the perfect application for an innovative Rube Goldberg setup. Go for it. /forums/images/graemlins/grin.gif
 
   / Help me design a leaf-collection bucket! #9  
Dave,

Would a broom setup work? Here is one on e-bay as an example.

Don't know how your yard is but just thinking you could broom them off.

Or broom to the side with some sort of catcher or vacuum off to the side of the tractor (maybe power using rear PTO). Here is a vacuum (although you would need to change the capacity.
 
   / Help me design a leaf-collection bucket! #10  
Just get a rake. They have worked for years and will probably work for many more years.

If'n you want something fancy set up a vacum pump - tank and suck it all up..

Or just mow it a ferw times till it's all shredded up. /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif /forums/images/graemlins/grin.gif

Egon
 

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