does anyone know of software for drawing ram movements etc

Pennine Ploughing

Member
Mixed Farmer
why not just use 1 ram and put in a linkage like on a digger bucket, that would half the amount of hydraulics you would need

Bucket-034.jpg
 

dannewhouse

Member
Location
huddersfield
why not just use 1 ram and put in a linkage like on a digger bucket, that would half the amount of hydraulics you would need

Bucket-034.jpg
i thought about that but I wouldn't be able to leave the ramps stood straight up rather than folded over back?

I can get the amount of rotation needed without a linkage on just 1 ram <I could have a pin system to lock the 2 ramp parts together for leaving stood straight up, they would then need a holding bar. good idea though
 

dannewhouse

Member
Location
huddersfield
I cannot see how this can be done, as your drawing shows movement of more than 180 degrees
its because it isn't much over 180 degrees. the 1 hinge is 90 degrees the other is about 95 but if you allow for 100 for undulating ground?
I have a rough linkage of 1 ram operating it. (the ram will have to be mid mounted ie instead of a standard 300 stroke ram being 460 closed centres you would have to weld on pins so its more like 300 closed

I know theres 2 rams showing but they are to represent 1 ram its because the software cant calculate which pivot will act 1st.
I also know it is only 180 degree rotation but I could get more with a little alteration wedge 1 ram 1.png wedge 1 ram 2.png wedge 1 ram 3.png
 

multi power

Member
Location
pembrokeshire
theres too much difference from the 1 hole to the next!!!! haha I used to trial ideas in lego though!

wish I had photos now I designed an "up and over" door on a tipper trailer, drew it all to scale in cad both up and down showing door onen/closed. then printed it out and pinned it to card to show as the tipper tipped it opened the door. then I drilled the trailer and used wood and rope to prove it worked before we set too and made it ... dad cut 2 holes wrong!!! I think it was 1120mm and he cut 1020mm so it still wasn't idiom proof!!!

thanks for info I will give that software a good go!
Measure twice, cut once, don't need a computer program to tell you
 

dannewhouse

Member
Location
huddersfield
I an sorry, but 1 ram with no linkage will never work on a 180 degrees never mind over that, so to use 1 ram it would have to have a linkage like the 1 above i posted
I'm going out now but I will alter this design to show over 180 degree rotation (I'm not saying it will be a lot over 180 though)

can you see that although I have drawn 2 rams they could be replaced by 1 in the diagram I put up? its because it throws up an error as it could pivot vie either point.
 

tinman

Member
Location
Ulster
200 stroke is 360 centres closed and 300 stroke is 460 closed according to Ramko website/standard stock.

yes I thought that you could unfold them that way, I originally thought about putting them both on the same spool but I think it will be handy if its possible to leave the ramps stood straight up (just for instance you load a machine that's just too long to allow the ramps to fold over)

just debating whether to run 2 full sets of pipes to the tractor or do it like our artic where you supply oil to a valve block on the trailer and control the ramps from the ground.
there used to be springs on my lowloader til i converted it to two rams, i thought it better to run a flow and return from the tractor and mount a spool at back so i could control them, thats the way i did it and ive always found it a good job.
i just put them to float for loading.
at cost you could go all fancy and go wireless...

your going to want some feet for that cheese wedge but id assume you know that.

I was spot on with my cardboard (y) how do you think people made things before cad :D

https://thefarmingforum.co.uk/index.php?threads/hook-lift-trailer.81270/

if you made that all from scratch sir ill tip my cap to you, damn nice work there.
what lth is it, 12 foot ill guess.
personally id of went for 3 axles altho the way yours sits the axles look like they are just in the sweet spot.
 
there used to be springs on my lowloader til i converted it to two rams, i thought it better to run a flow and return from the tractor and mount a spool at back so i could control them, thats the way i did it and ive always found it a good job.
i just put them to float for loading.
at cost you could go all fancy and go wireless...

your going to want some feet for that cheese wedge but id assume you know that.



if you made that all from scratch sir ill tip my cap to you, damn nice work there.
what lth is it, 12 foot ill guess.
personally id of went for 3 axles altho the way yours sits the axles look like they are just in the sweet spot.

Thank you (y) made everything except the axels :)
 

dannewhouse

Member
Location
huddersfield
I an sorry, but 1 ram with no linkage will never work on a 180 degrees never mind over that, so to use 1 ram it would have to have a linkage like the 1 above i posted
I think I can show over 180 degrees on 1 ram.
although I have 2 rams as I said before this is because the software wont accent 2 pivots on 1 ram. if you look when the ramps are in the transport position they aren't quite level this is partly due to the 2 rams having a dip whereas the 1 ram would appear longer due to being in a straight line if you understand me. the pair of rams are to mimic 1 ram which would be 312 "throw" 539 closed 851 open < I know this isn't a "stock" ram but I was too lazy to alter all my dimensions to match stock rams and this ram could be made just to show it could work.

I suppose the middle part of the Chees wedge ramp does act like a linkage in itself?
see what you think? I'm not saying its a good idea or anything just that it is in theory possible.
1.png 2.png 3.png 4.png 5.png 6.png
 

Andrew

Never Forgotten
Honorary Member
Location
Huntingdon, UK
The problem is with one ram like that you will have to power it against the floor, in float it will try and sag in the middle. Even then, track something like an excavator up those ramps and it will put massive tensional forces on those rams. Then when folding it will flop about, first it will bend at one point, then halfway through there could be a bang and that pivot will straighten and the other will bend. It could fowl and mark / bend the rod during this.
What are the benefits of one ram?
 

dannewhouse

Member
Location
huddersfield
w
The problem is with one ram like that you will have to power it against the floor, in float it will try and sag in the middle. Even then, track something like an excavator up those ramps and it will put massive tensional forces on those rams. Then when folding it will flop about, first it will bend at one point, then halfway through there could be a bang and that pivot will straighten and the other will bend. It could fowl and mark / bend the rod during this.
What are the benefits of one ram?
non really, the ram wont foul on the change over of pivots as the ram will be the same distance from everything as it is in the folded position. I don't think the 1 ram is particularly good just proving it could be done. suppose the only thing you might say is you only have 1 ram to buy? personally i think standard rams are cheap
regards the leaving it in float for loading/unloading I would have a shoe which hits the floor on the middle section of ramp so would leave in float but would also have stops on it a chance the ground happens to be too low (to stop that part of ramp folding further than I would want) you would probably make the shoe so that its 2" off the floor on a perfect concrete floor to allow for when weight lowers the trailer and for uneven ground. when loading it will easily go down the 2" so the shoe is still doing its job.
 

Andrew

Never Forgotten
Honorary Member
Location
Huntingdon, UK
no it cannot be done with 1 ram,
you will need 2 rams 1 to work each part of your ramps, that should be easy to work out

Actually it can be done with one cylinder, as there are 2 pivot points. In this instance I don't think it should be done though for the reasons I mentioned above.

My bale grabs have 188 degrees of travel from one cylinder, it is a matter or distance and angle settings.
 

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