Dump trailer angle of the dangle

[Artisan]

More info in Ball and Socket hinges for tipping trailers.

From HERE

[LD1]

Okay...here goes some numbers:

3.5" cylinder @ 2400psi is going to give 23,000lbs of force.

Now to figure out how much of that is in the UP direction.

With a 25* effective cylinder angle, you have 9750lbs of force in the vertical direction.

Now to figure what that equates to at the center of the bed...

With a 82" bed, the center is 41". And you are pushing with a force of 9750lbs 30" forward of the rear pivot. So that would equate to a 7100lb lift force at the CL of the bed. BUT...keep in mind that the weight of the bed is raised too. So that gets deducted from the 7100lb capacity to get a true dump force.

But even so...I think that should certainly dump anything you could get on that size of a trailer.

I trust your drawings and angle-of-dump measurment so I wont go into that.

[Artisan]

NICE Thank YOU LD1 and indeed the drawings are precision.

Drawing 2D parts in CAD is fun! I would love to have it for
a side job.

[LD1]

No problemo and Yes, cad is very handy for drawing things like that. But you can still figure everything without it if you dont have cad. Thats how I figured everything for my dump.

[LD1]

Also, I forgot to mention that you need to take into serious consideration that you are going to be pushing on the front axle and on the trailer-side mount with 11.5 tons of force. You need to make them VERY stout given that you are pushing smack dab in the middle of them.

Heres something to ponder about (and draw up in cad...)

Move the front axle back a bit, and drop to a 30" cylinder. Use two of them mounted to the frame-rail on the trailer side and out closer to the wheel on the axle side. You could then drop down to 2" cylinders. Dump angle would be a little less, but it looks like with the 36" cyl you have about 85*, so dropping to a 30" should still give you in the 70* range.

Doing this you wouldnt have to build the mounts like a tank. Each cylinder would push with ~7500lbs force for a combined 15k force. On a 25* angle, that would be about 6500lbs in the vertical direction so still pleanty to dump. And a 2"x30" cylinder is $110.

[Artisan]

So MIKE from Poland has really got me reeling here.
A 3 way tipping trailer is off the chain cool, I mean it
really can be usefull.* These "underbody" telescoping,
trunnion mounted in a gyro swivel w/ a swiveling top
shorty cylinders are the bomb. How much money does
this stuff cost is the next thing I look at just so I cover
all bases before building anything.
I did not know where to get the 3-way-tiling corner
"Balls" but BCP, a man of many productive searches
FOUND THEM at Leisinger Deutschland GmbH: Unternehmen . I registered there
and wrote the firm asking for info on there smallest
units, the KL45's.



*My plan is to make a trailer lower section that dumps,
and then perhaps have a few different attachments
I can mount on it.
Maybe a dirt dump, a log hauler, a platform for an
AutoCrane, etc.
If all 4 corners are "Balls" and if all 4 corners could be
unlatched it would make for EASY top section swaps.

[LD1]

Now wheres the fun in a "do it all" trailer??

The way I see it, you can just build 5 or 6 trailers all with a dedicated purpose

I agree with you about the cool factor. Though....complexity and $$$ would be the two things that make be revert back to a conventional dumper.

[Artisan]

...and that I may but unless I get edumacated I would
always wonder. LD1 do you have a link to a calculator
or how are you calculating all those forces?

[Artisan]

I think I awnsered one question PUSH PULL ANGLE Calculator

[shona13]

G'day artisan.
I once worked with an old school Rigger ,this guy had years of experience and his philosphy was kiss Keep It Simple S----D.
If he had a complex rigging job to do he would look at the Rigging engineering drawings and then he would go of and make a scale model and work out the whole job , I never did see a job that he was involved in fail everytime perfect and all he done was to make a model of the equipment.
May I suggest you try this approach.
Regards.
Hutch.