honey_badger
Well-known member
Yeah think I'll base if off the one that Andrew Camarata has on his Kubota, I like the way that one pivots off the pins and how far it folds up.
honey_badger
Well-known member
Brilliant thanks they look ideal for making a tidy job.
The hydraulic toplink on my tractor has something similar to that now I think about it.
D
Davedb
Well-known member
That will be a check valve on your hydraulic top link to stop it creeping
Mogman
What man as done, man can do, what never has,maybe
I built one for a mates 3 tonner using the same dipper pin as his quick hitch can only find these pictures
If I remember will take some tomorrow as on a job with him
If I remember will take some tomorrow as on a job with him
V8Druid
do it as well as you can,but learn to do it better
Mogman
What man as done, man can do, what never has,maybe
No just a few chalk pictures on the workshop floorthat must've taken some head scratching to get that right Paul
the ram came from a Kobuta 3 tonner that I cut up years ago plumbed into his two way breaker service on a couple of taps
V8Druid
do it as well as you can,but learn to do it better
aye aye ..... can you hear the other one jinglingNo just a few chalk pictures on the workshop floor
... some thought went into that
Mogman
What man as done, man can do, what never has,maybe
A close up of the thumb
honey_badger
Well-known member
Now if my thumb ends up like that I'll be a very happy chappy... Looks great
honey_badger
Well-known member
ahh. Why don't they put them on digger rams/tractor loader rams to stop hydraulic sag when parked up? expense? I think our telehandler has one though.
Can anyone answer why the ram on my toplink squeaks when its being let outwards with some weight on the back?
honey_badger
Well-known member
Mogman - is that ram on the thumb exactly the same as the ram on the dipper or not? looks like the same size? Cheers
V8Druid
do it as well as you can,but learn to do it better
if you listen very carefully it's actually squealing
.......... "FFS put it down"
V8Druid
do it as well as you can,but learn to do it better
honey_badger
Well-known member
haha probably poor thing. Any idea how i tell what the ram is actually rated for? I just sort of stole it off a front linkage that had been sat in the barn for years and put it on the rear... Several years ago now, had no issues with it so far. Just sort of thought 'looks big enough'.if you listen very carefully it's actually squealing
V8Druid
do it as well as you can,but learn to do it better
it's rating can be calculated ..... piston area x pressure available = capacity as a straight push ... for a pull, subtract the area of the rod diameter from the piston area, for usable piston area ...
(pi) 3.142 x radius squared ... eg. 50mm cylinder would be 25 x 25 x 3.142 x pressure (say 200 bar) = circa 4t push
V8Druid
do it as well as you can,but learn to do it better
with a 30mm rod .... pull would be circa 2.6t -- [ (pi) 3.142 x piston radius squared -(minus) rod rad. squared x pi x pressure available ]
TiltyShaun
Well-known member
V8Druid
do it as well as you can,but learn to do it better
" Pi is the ratio of a circle's circumference to its diameter. ... So, for any circle, dividing its circumference by its diameter will give you the exact same number: 3.14159 [etc. ad infinitum ] . Pi is also an irrational number, which means that its value cannot be expressed exactly as a simple fraction. " so multiplying the diameter by pi will give you the circumference [Pi x D] of any circleDo we have a pic that says “that went straight over my head”
Think of it with a square piston Shaun .. and it's easier to get your head around .... the 'complicated bit', calc.ing the area of a circle is the confusing bit .... a 2" square cylinder would give you 4 square inches for the oil to push against ... with 200 bar (14.5 PSI x 200) it'd give you 11,600 lbs of force (5.26 tonnes) .. simple as that
Mogman
What man as done, man can do, what never has,maybe
Probably a bit bigger but it was a ram I had laying about that looked right
And my pal who’s machine it’s on fair gives it some
that’s why it’s got the thicker pieces welded on the tips..........as he bent the ends
Mogman
What man as done, man can do, what never has,maybe
And the number never repeats it’s self" Pi is the ratio of a circle's circumference to its diameter. ... So, for any circle, dividing its circumference by its diameter will give you the exact same number: 3.14159 [etc. ad infinitum ] . Pi is also an irrational number, which means that its value cannot be expressed exactly as a simple fraction. "
Think of it with a square piston Shaun .. and it's easier to get your head around .... the 'complicated bit', calc.ing the area of a circle is the confusing bit .... a 2" square cylinder would give you 4 square inches for the oil to push against ... with 200 bar (14.5 PSI x 200) it'd give you 11,600 lbs of force (5.26 tonnes) .. simple as that
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