09-25-2009, 01:43 PM
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#11 (permalink)
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Join Date: Jul 2005 Location: northwest
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|  Re: Telescoping hydraulic cylinder 4 dump trailer
Here is my hair-brained scheme. You could simulate a telescoping cylinder by connecting two cylinders together. Put the rams going opposite directions and tee off of your lines. I'll see if I can find a minute to sketch up the idea and post it.
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09-25-2009, 02:03 PM
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#12 (permalink)
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Join Date: Jul 2005 Location: northwest
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| Re: Telescoping hydraulic cylinder 4 dump trailer
Here is the sketch... 
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If necessity is the mother of invention, laziness is the father.
Last edited by Iplayfarmer; 09-25-2009 at 02:04 PM.
Reason: add image
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09-25-2009, 02:36 PM
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#13 (permalink)
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| Re: Telescoping hydraulic cylinder 4 dump trailer
I never thought of that, but I wonder on the stress it would put on the cylinder end caps, etc. For light work that might work.
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09-25-2009, 03:35 PM
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#14 (permalink)
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| Re: Telescoping hydraulic cylinder 4 dump trailer
Quote:
Originally Posted by J_J  I never thought of that, but I wonder on the stress it would put on the cylinder end caps, etc. For light work that might work. | I'm sure there are ways to improve on the idea. You could even put a "S" shaped piece between the cylinders that fits the clevises and takes the stress. You could also build a box of sorts that the bases fit into.
That's what brainstorming is all about. Everyone throws out their mediocre ideas, and hopefully a superior idea is born in the midst of it all.
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09-25-2009, 03:38 PM
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#15 (permalink)
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Join Date: May 2008 Location: Vermont
Posts: 30
| Re: Telescoping hydraulic cylinder 4 dump trailer
To me the liner idea seems the easiest. Is the trailer to large for a pickup liner? They are not as popular now and can be picked up cheap.
Dean
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09-25-2009, 04:04 PM
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#16 (permalink)
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Join Date: Oct 2008 Location: West central Illinois
Posts: 978
| Re: Telescoping hydraulic cylinder 4 dump trailer
The liner is the best idea. You also have to consider how tippy it gets when you get it up high in the air and the material doesn't slide out. I have seen semi trailers full of gravel get a little tippy and that looks like it could get ugly in a hurry. | |
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09-25-2009, 05:03 PM
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#17 (permalink)
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Join Date: Jul 2003 Location: Westminster, MD
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| Re: Telescoping hydraulic cylinder 4 dump trailer
Quote:
Originally Posted by Iplayfarmer Here is the sketch... | I think you will bend the rods with that setup-unless they are super big.
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09-25-2009, 05:10 PM
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#18 (permalink)
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| Re: Telescoping hydraulic cylinder 4 dump trailer
Quote:
Originally Posted by kennyd I think you will bend the rods with that setup-unless they are super big. | The other option is to put the cylinders side by side vs. one on top of the other. You'd have to move one or both brackets.
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09-25-2009, 05:50 PM
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#19 (permalink)
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| Re: Telescoping hydraulic cylinder 4 dump trailer
Quote:
Originally Posted by Iplayfarmer The other option is to put the cylinders side by side vs. one on top of the other. You'd have to move one or both brackets. | The problem with either setup is the load is not linear to the mounting pins. Look at the modified picture below:
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09-25-2009, 07:42 PM
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#20 (permalink)
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| Re: Telescoping hydraulic cylinder 4 dump trailer
Quote:
Originally Posted by Iplayfarmer Here is the sketch... | Forklifts use a setup similar to this. They use 2 upright cylinders and one inverted all welded together. That's how a lot of them get the telescoping mast.
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