Hydraulic Cylinders Push Harder Than They Pull
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- Опубликовано: 4 янв 2023
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-Aldo
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Sounds by @TheJustinator 
Развлечения
Damn. I never even thought about this, but it's so obvious now!
that's how it is when something is property explained
@enriqueamaya3883 congratulations, but spam is not how you bring more people to your religion.
for the good of your own faith please stop spamming.
@enriqueamaya3883you should go on with that nonsense
TIL: I can't pump very hard because of the size of my rod.. 😂
"HEYOO!"
i still s don’t understand
Holy thats a smooth loop
thanks
Ya
I was like, where the fuck does it end. This loop got no stop what so ever.
@@KnowArt⚠️ God has said in the Quran:
🔵 { O mankind, worship your Lord, who created you and those before you, that you may become righteous - ( 2:21 )
🔴 [He] who made for you the earth a bed [spread out] and the sky a ceiling and sent down from the sky, rain and brought forth thereby fruits as provision for you. So do not attribute to Allah equals while you know [that there is nothing similar to Him]. ( 2:22 )
🔵 And if you are in doubt about what We have sent down upon Our Servant [Muhammad], then produce a surah the like thereof and call upon your witnesses other than Allah, if you should be truthful. ( 2:23 )
🔴 But if you do not - and you will never be able to - then fear the Fire, whose fuel is men and stones, prepared for the disbelievers.( 2:24 )
🔵 And give good tidings to those who believe and do righteous deeds that they will have gardens [in Paradise] beneath which rivers flow. Whenever they are provided with a provision of fruit therefrom, they will say, "This is what we were provided with before." And it is given to them in likeness. And they will have therein purified spouses, and they will abide therein eternally. ( 2:25 )
⚠️ Quran
Yes just like it will smoothly loop in your head 💀
Yep.
Push movement has more power than the pull movement.
But pull movement has more speed than the push movement, because the volume that needed to fill the pull room is smaller.
This need more like.
Fill what room? If you are pulling you are filling the room without the bar which is a bigger room…
@@calvin2013 no??? Pushing is the empty space
@@tjn1017 that is what i said bruh are you ok? The “empty” space gets emptied when pushing and filled with air when pulling. The space with the rod gets filled when pushing and empties when pulling
@@calvin2013I think you are confused with your english sir.
I love the sound design! Glad to see people putting actual effort and good content to shorts
thanks! I´ll tell @thejustinator (the one that made the sounds for this video) you liked it.
It’s nice to see, but rare since it’s almost not worth it with how shitty the creator fund works, you could have a billion views and countless likes and not get a single cent @masteroogway for reference
Love the sounds @@KnowArt
This is not true. This is strictly based on exterior atmospheric pressure increasing per volume due to elevation. Which is why most hydraulics are positioned vertically not horizontally Unless based on a pressure system i.e. external force power.
I actually work in a hydraulic repair machine shop and as a basic technician I didn’t even know this ( but it does make sense)
Glad I could help
I worked on a few types of cylinders used in industrial machines and somehow this was one of the first things I inferred. Had to somehow prove it to my senior but fortunately another guy at work backed me up
Really? I learned that in a 2 week side seminar about pneumatics during my training as electrician. I thought it was comon knowledge in the industry.
@@electricpaisy6045 it is. Cylinders with this design are described as "unbalanced. "Balanced" cylinders have an extra long rod that extends out the back wall of the cylinder through seals. Balanced cylinders are used when symmetrical operation is desired, for example a boat steering cylinder. Otherwise there will be significantly faster steering in one direction than the other.
I was a hydro troop in the USAF and that was something we learned day one.
This is correct if we keep the same working pressure. In the case of needing to do the same job, you only have to increase the pressure on the rod side.
It’s easier to just design the system to have enough pressure to pull with sufficient force, rather than have 2 different pressures.
The push stroke will have some extra force but it usually doesn’t matter.
What is often a more annoying problem is that the cylinder extends slower than it can retract, because the piston side has a greater volume to fill than the rod side.
This can be solved to a extent by recycling the oil coming out of the rod side into the piston side instead of going to the tank. This is called regeneration. This doesn’t work when extending under a substantial load tho.
@felixar90 so what your saying is exactly what the other guy wrote only in more detail of a specific system.....Okey dokey
Or simply change the relationship between surfaces by reducing the diameter of the connector on the extraction side 🤷
@fitito500 doing that would reduce the load limit for the hydraulic cylinder, making it weaker. Doesn't sound like a good trade off.
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My pulling game is also weak hydraulic cylinder😢
Don't play, you have no game to begin with.
@@adriandiaz-cabrera1733that makes 3 of us
my favorite types of pies are creampies as well
@@Itzarzkyrelatable
@@vintage-radio greatest feeling until she hits u with a pregnancy test and your heart drops to the floor
That loop is so smooth, it made me watch it twice and didnt suspect anything till the 3rd time
I watched it 5 times :(
How can you really be sure how many times you’ve watched the loop?
The sound effects be going like "OUOUOUAAA"
Hey, that actually makes sense.....thank you
My hydraulic guy used the term “rod displacement”
i learned about this in my automotive class! it’s actually really neat how it’s used in suspension
How is it used in suspension?
That makes sense now
Could you possibly make the piston rod side like a concave ish shape and keep it flat on the bottom so that there is more surface area on top that equals that of the bottom side?
You'd just add perpendicular force components that cancel out (that is, if the shape is symmetrical. If it is asymmetrical, there should be a force pushing the piston to one side of the cylinder wall, which also doesn't help.)
@@werwurm hmm interesting, how about a convex shape instead?? Would that work
The surface only matters if it is perpendicular to the direction of the motion. By making it convex or concave you wouldn't increase the perpendicular projection of the surface and thus it wouldn't change anything.
The hydraulic power is determined more by the pump than the cylinder. Because while there is more positive pressure going one direction there is more negative pressure going the other negating the statement in the video. The direction of the cylinder is really just a storage reservoir.
Extend/Retract > Push/Pull. Most confusion stems from nomenclature and language barriers (technically hydraulic systems dont pull. The pump is already creating pressure, which makes it easier to switch sides of the cylinder instead of having a positive pressure pump and vacuum pump for each side)
you also wouldn't get very far with a vacuum pump as it can only ever get 1 atmosphere of pressure on the other side without a pressure pump
Layman’s terms. The rod is pushing and pulling
It depends on if you are talking about the hydraulic system or the mechanical system it's operating.
For instance, when the hydraulic system is extending the rod, it is Pressing on a hydraulic press, and Lowering on a crane outrigger and Lifting on a forklift and Pushing on a trash compactor.
And in this animation, it's pushing the rod out and pulling it back in, even if the pressure is still Pushing on the rod end of the cylinder.
It's all about perspective
This particular example applies to double acting cylinders
And this is why I believe we need a ride engineer appreciation day,. Because they have to think about these things are just the tip of the iceberg of things they have to put into account!
Oh you should do one for how if you connect both sides with lines and pressurize it, it'll extend a lot faster since the pump is only replacing the volume of the piston rod. It's called a regenerative circuit. It'll extend fast with less power and retract slow.
oh! that's a cool fact. Is that used on big machines? No promises, but I'll put it on the list for research!
@@KnowArt it is used on large hydraulic presses, not when pressing, but when moving the ram into position so it’s a bit faster.
Kind of like AC vs DC
I had to work that through in my head but I can see how it works now. I thought the two would just fight each other and slow it down even more, but really both sides are just expanding and spitting the piston out by replacing the metal volume with fluid as if it's just a steel rod with its end sticking out of an airtight hole in a container of expanding fluid. The force is pressure x the cross sectional area of the ram, so not quite as much as either the push or pull (unless the ram is really thick). Well it will be the push minus the pull actually.
@@mountainfarm5318
No, not really anything like AC vs. DC.
Intuition always told me that hydraulics can push harder than they can pull but never considered this to be the reason, as I've never actually consciously thought of it until now.
“How’s your pull out game”
My pullout game:
Yep one of the first lessons in machinery school 30 years ago.
any other lessons that would make a good video?
@@KnowArt It would perhaps be interesting to know how to calculate hydraulic pump flow. Or what to measure hydraulic flow whit, everybody has bar gagues to messaure pressure but flow seems harder to messaure.
@@MrJokkoma hmm... measuring flow, interesting! Also the age old question if a pump generates pressure or flow could be fun, now that I think of it.
@@KnowArtsounds like an excellent subject to generate "engagement" as everyone tells you that you are wrong, and the rest of us argue with them! Lol
@@KnowArt flow is impossible without pressure. Physics isn't mad, just disappointed.
This is peak smoothness 🤌❤️
straight to the point with no filler, love your videos man
So just use 2 cylinders 1 for pushing one for pulling boom problem solved
you are NOT an engineer am i right ?
@@LOL666PXidk man he just fixed an issue by turning it into two issues, I think he's qualified.
Its what they commonly do to fix that unavoidable issue
Never think of that.glad to listen these essential things 😅😊
That loop was so smooth I got hypnotized and watched this short for the past 2 years. Nonstop
Help me
This guy just appeared out of nowhere and started answering all my questions
I love every single one of KnowArt's shorts. Elegant, straight to the point shorts.
the sound is so funny 😂
@MilkyLore thanks
Wouldn't the piston also reduce the volume in the upper half, thus the air would have to fill a smaller space and would be denser. Wouldn't this denser air then apply a greater force and equalize this disparity?
Nope, because the volume decreases at the same rate on both sides, as in when you move the piston halfway, the pressure doubles, and that works for both sides. It would only apply if the amount of air is the same on both sides and that's not true due to 2 reasons. 1) the piston rod doesn't displace the air on the other side, it replaces it so the pressure equalises. 2) it's hydraulic, so there is no air
The rod is the difference
He said hydraulic not Pneumatic so it's using oil which don't compress
"Igotaglockinmairari" one of the wisest word.
Oh, so that's why both the pneumatic and hydraulic pumps in my school push slowly when I apply them on both sides xd
Yeah I get it. One is work, and the other is returning back to work.😂
lol
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Can't the rod be perforated so the checkered area can be reached by the oil if a hollow rod is used?
No, por qué seria una camara diferente y no causaría ningún efecto hidráulico.
Lo que se puede hacer es usar un embolo con doble vástago.
Can't, cause the holes would cause leaks
Could be possible but then weight or force apply by or on piston should be less. I mean rod weight carrying capacity will decrease
you can delete the rod, then the force is equal in both directions (zero).. lol...
Better than my Engineer class 😅
that sound effect wasn't what i needed to sleep... now i'm awake again at 3am
WHY ARE ALL YOUR LOOPS SO GOOD
What about rodless cylinders?
Didn't know of their existence. Thanks, they seem interesting. I expect they would not have this problem. But at first glance they seem more fragile in general.
I love this account. Quick, simple, and well executed explanations for so many things
This is something I am currently studying in mechanical engineering. Interesting animation!!
Why did you put this script? (Even though its the same pump) So youre assuming that if its not the same pump it still cant push harder than it pull? you messed this up. if you put 10hp motor on push pump and 1hp on pull pump. itll push more than it pulls, so why are you teaching WRONG things?
Nearly all hydraulic systems use a single pump. Valves are far cheaper than additional pumps
I love the sounds. Thank you
I love how everyone is surprised like wtf did you think was going on in there.
Good to see this a year after it was tested on my engineering paper
When operating equipment on a farm I always wondered how these things actually work. Now I do.
the loop is teaching me more than just watching it once. good job bro omg
That's why double acting steam engines have that "chooof chiiiiiif" to them.
I like these simple animations that break down mechanical principles in ways that seem obvious in hindsight.
the sound design is tickling my brain
Sometimes when it is a perfecf loop I don't realize it's loop and I just keep watching thinking it didn't finish
Getting 2 of these videos in a roll feels unreal and nice.
this guy dude
always got me with his loop
These loops are trippy. I watched it 4 times before realizing it was looping
Damn, never thought about this, but Yea, when You point to it its so clear.
The noise itches the abyss in my skull
Loved the discussion at the end. I really felt like you got to and helped me discover a lot of my own thoughts and interpretations of the movie 👍
Have always been desirous to master the science behind the hydraulics
That explains. Pretty simple but easy to miss
i really like how this channel makes interesting loops out of things I don’t give a shit about
Damn I saw this on repeat for 4 times , and lo behold i understand what you just said
I just shat myself
The wheel of the motorcycle: wEEeeeEeewooooooaaaaaA
Yup as a piston i can confirm that I too have a problem pulling out faster 😞
all your videos are loops and I love it
Your sound design is so fantastic that i missed every single word on my first watch 😂
This channel gives you the knowledge you never expect 😂.
I have never thought of that! That is very interesting!
And it's a dose when the hoses breaks 😂
Same for pneumatics. They thaught us this and it suprised me even tho it's so obvious.
the noises are making my brain funny
I keel watching this guy and he has the best loops ever
Gotta appreciate the details in sound effects. Love those ngl.
Got me, such a short clip, amazing answer, as much as you know still learn something new
Yea it makes sense I never really thought about it when I was rebuilding cylinders but it does make a whole lot of sense why when under load is more noticeable
You can also send pressure to both sides to rapidly extend the cylinder.
It's because the shaft would effectively reduce the volume of the cylinder so you need less fluid.
But it also means you have much less force
I was thinking to myself well No duh but then I remembered not everyone goes to college for this stuff.
Man i had a whole idea in my head for how hydraulics work and turns out i was totally wrong ha ha!
Bro's asking questions i don't even knew i had
I was studying to be an engineer but changed to psychology. These videos scratch the engineering itch like nothing else I’ve seen in the past few years since switching.
Im so glad I subscribed to this channel. Straight knowledge injection to the dome 💯
I've learned something today 👍🏻
Thanks for the information dr. Kleiner
Ngl that’s one of the cleanest short cuts ever
It took me a sec to realize it was looping
Learnt this the hard way at work 😂
Wow makes sense. Thanks nice video ❤
Yep, I've been working with that for the last 50 years. I'm a heavy equipment/ trash truck mechanic
Works for pneumatic cylinders too!
i have said this before i will say it again this guy makes the most perfect loops and most of the time i don't even notice
I love this crap!!! This is exactly how I learn!!!🥰🥰🥰
At work I run a Takeuchi skid loader a decent amount. I had noticed that the attachment locking mechanism locked much faster than it unlocks. The piston lengthens to lock and shortens to unlock. This explains everything.
Exellent explanation.
"Even though both sides use the same... 🎵 PUMP 🎶
Both sides use the same BUMP
THAT SMOOTH TRANSITION
I have been watching this...for 30 minutes!
This loop is breaking the Matrix for me.
loop is so smooth
Crapped my pants a lill in the beginning.
These videos are so qick and i learn enugh i need