Hyd dunp System on Firewood Hauler.

Been doing a lot of pondering on how to fab up the hyd dump on the new wood hauler. Started out with using one or two old SA cylingers off an old loader that I had. then my focus turned to an old 4x36" DA cylinder that was on the first wood splitter that I built. Dad ran it for years until the I beam rails wore out and the wedge came of and bent the cylinder rod. I salvaged the old DA cylinder that had sat in the woodshed of the saphouse for probably 20yrs and finally got it pulled it apart with my trackhoe and straightened the cyl. rod.
My good friend Jon-MN and I have been discussing posabilities and he gave me some sugestions so That I can get 6' of lift from the 3' cylinder. Original plan was a deadman on trailer toung and pully on clevis of cylinder rod, and then attachment point to bottom of dump body, connected with a cable. The problem was that the hyd hose ports were pointing forward and the cable would be interfearing with the fitting and hoses.
I ended up deciding to use #50 roller chain instead of cable and fastened the deadman bracket to the top of the cyl. so the pipeing and hoses are free from the chain, plus it will take half as much chain. After fabing the deadman bracket to conform to the outside of the cylinder, it will be welded to the top of the cyl.
I remenbered that I had some HD bearings stashed away so I dug them out and built a "toggle bracket with 2 of the bearings for the chain to feed over the rod clevis as the cyl extends. With this design the bottom of the body will be raised 6' when the cyl is fully extended, rather than just 3' if the cyl. was directly connected to the body.
Loren

I guess that went over my head, how a 3' cylinder can have a 6' reach. If you had a fulcrom simular to folding machinery wings, then yes maybe.

Just like a forklift! You're quite the engineer Loren. I would never have thought of that.

A machine shop in Sioux Rapids Iowa by the name of Simonsen Iron Works used to make a hoist like that, only they used cables instead of chains. Production was dropped many years ago but I still see a wagon with a .Simonsen hoist sitting in a farm yard once in awhile. The hoist was simple and dependable as the day is long.

Jon sent me pics of a Minisota flareside box that had the cable lift system. That is where I started, but as I said, there were some issues with the cable clearing the hoses.
Loren

Simple geometry. The piston rod is pushing the chain up. one end of chain is ancored, so as the piston extends one ft. the moveing end of the chain fastened to the body moves two feet.
Loren

I would think chains would last longer than cables but I have no proof. The Caswell loader we used for twenty years lifted dependably with chains and it went up and down many more times than a normal wagon ever would.

Bet it really looks cool with all of that chain grunting as she goes up. Maybe you can down load a video on u tube?

Frank,
I been wondering how he is going to get a 45 degree dump angle too. I would lift the front 6 ft and see what angle the bed makes before going doing anything.

Also wondering how one axle will carry much wood without blowing tires or getting stuck in the mud.

I hauled split oak for a neighbor with my 10k dump trailer. First load the trailer was overloaded. Estimate the wood weighed 8k+. Pay10k load on my trailer is 7k.

Guess we will have to take a wait and see what happens.

Hope Loren had a good Geometry teacher.

Geo

Why is it so amazing that he got 6' of lift out of a 3' cylinder? You can get 6' of lift out of a 24" cylinder and you don't even have to use chains and pulleys, or even a complicated scissor hoist. All you need to do is mount the cylinder under the bed at a slight angle like a typical commercial dump trailer.

Very cool - That barley pop on the bench probably helps your pondering...
Pete

George, I know it won't get to a 45D angle. A 10' bed hinged at the rear would have to be raised 10' to get that, but firewood will will come sliding to the rear where I can grab it off the tailgate and stack it into the shed. with what I have. It wasn't built to dump sticky dirt, I have my smaller trailer for that.
I'm not conserned about the 16" or 17" truck tires blowing, that will go onto it,(haven't made that decision yet) and I have real tractors to pull the trailer, not little wan-to-bees like you have. HeHe
And yes, I had a good geometry and physics teacher. My mother taught highschool math for years at our local school.
Loren

Except in your version there is significantly less lift power than Loren's design. Loren will get more
than enough lift from a cylinder that would be way too small with the other design. Loren's plan also
requires less bed and frame structure to handle the stresses of lifting.

Looking good Loren! Those bearings are a great idea. The trailer is coming along real nice.

Great to see the update Loren. Your metal fab skills were clear on all the other pictures. I was wondering when you would "pull back the curtain" on your lift/hoist design. I figured it would be good.
With Jon F's input, this will be a GREAT trailer. Can't wait to see the final product in action.

Loren,
I know someone with 31 one years teaching math, geometry and physics,

I also know hauling wood branches in my dump trailer requires 45 degrees.

Before I had a dump trailer I had a 16 ft landscape trailer. I would use a chain down in the middle of the trailer. Stack branches on trailer. Hook chain together at the top. Connect chain to tree and pull forward. Easier than unloading by hand.

I would put something under front of trailer raise it 6 ft and see if wood will slide.

Hoping it works for you.
geo.

I don't haul branches. I haul split firewood from the woodlot. and I stack it in my enclosed wood shed adjacent to my boiler in my shop. Why would I dump wood on the ground, just to pick it up and stack it in the woodshed. The tailgate is near wast high and no bending over, and the chunks will slide to where I can reach them.
Pics were taken tonight out in the woodshed and a pic of the 1963 Case 831C that my dad ordered into our Case dealership for one of my uncles. It will be pulling the wood trailer and I doubt it will have any problems pulling it.
Loren

Wish you luck. I'm sure you will keep us posted.

I enjoy making things out of nothing and enjoy seeing others re-purpose things too.

Looking great!!!