Understanding PLANETARY GEAR set !
Vložit
- čas přidán 6. 06. 2024
- The planetary gear set, also known as the epicyclic gear train, is one of the most important and interesting inventions in engineering. They are great speed variation mechanisms, and are often used in automobiles as a vital part of automatic transmissions. We will explore the secrets of the planetary gear set in this video.
We thank our patrons for making LE's educational service sustainable. Please support us at Patreon.com so that we will have the capability to release 2 videos/month.
/ learnengineering
Curious about how LE was born ?, Check out our story : goo.gl/otQfvD
Like us on FB : / learnengineering
Voice-over artist : www.fiverr.com/mikepaine
3 f***ing weeks to understand this concept at uni and in a 4.52 minutes video you explained more clearly than my teacher. :D
THIS IS BETTER THEN COLLAGE
Good visuals help. Also, university is not what it used to be. The internet gives far more information on demand with multiple sources. Most of the time this is for free. University just can't keep up with this.
Plus, these days a lot of unis just teach identity politics, not engineering.
I remember one of my professors telling me "The most important thing you must learn is to study by yourself ! " It was a good advise. Internet, being probably the greatest invention of the 20'th century, helps a lot in that regard.
I learned it when I was repairing my broken electric screw driver. University really isn't an efficient place for learning things.
1:23 "that is an impossible condition" It is very much possible, very well documented and often fun to watch from a distance. you may carry on.
Oh it's bad for the teeth though
Oh it's bad for the teeth though
tends to up the maintenance costs a bit
it is an impossible condition for gears to pass through gears without destruction, as shown in the video.
impossible conditions are a weak mindset, its only impossible when you stop trying.
Teachers have spent hours trying to explain this simple concept whilst an animation does it in 2 minutes. Thank you.
Best video about this mechanism, not only for the images but for the detailed verbalization in order to understand the logic.
Thanks for sharing engineering with a wide audience!
Whoever invented this deserves a cake. Genius.
It may have been Henry Ford. The model T has a planetary gear transmission
James watt invented it to get around the patent for using a crank shaft to turn reciprocating motion into rotational motion
;Watt patented it but it could be the invention of one of his employees en.m.wikipedia.org/wiki/Sun_and_planet_gear
I made inattentive driving much more popular, that’s for sure.
The best explanation with all fundamental concepts . Just loved your work @LearnEngineering .Love u
Superb Video, With Superb Animation !! Thanks LE !!
You guys are doing very great job
All animation videos are very good. I am assistant professor in mechanical engineering . I used to show my students. I hope you guys will make such knowledgeable videos related to mechanical engineering. Thanks you
I need to hold this in my hands to see work.
Surely, all those views are very good for learning process and also thanks goes to all production-teams!
It's me,
Sule Shangodoyin.
wonderfully simplified, ..that too,with exact clarity
I have assembled planetary gear unit set in transit mixer however this video clearly explains a lot thank you 🙏
I've been waiting for this video for a very long time 👏
Why did you waiting?
Thanks again for the interview and the videos!
영상으로 보니 확실히 한방에 암기가 되네요
감사드립니다
Praise the sun gear.
Clark Manor Deus 4L60
ahahahahahahaa
Clark Manor ..
I'm bowing down now!
May the sun gear shine your way , unkindled one.
Best Channel In CZcams.....For Me
Venkatanaveen Kodamagundla.
.
.....
It was so helpful! Keep up the good work!
You couldn't be more clear ! Thanks. Please go on posting
after differential this is the best engineering marvel i have ever seen
THE EXPLANATION OF THIS SYSTEM WAS OVERENGINEERED...
Brain challenging. Have to watch it again. Thanks for the brilliant lessons.
Seriously helpfull
Previously i was confused and after watching the video im completely satisfied
Great vid! I wish you had one specifically for the Borg warner overdrive, that used the same setup to simply add a gear to a manual transmission and at the same time make it automatic!
Se ve exelente así es gran funcionamiento interior de el diferencial 👍
Thank you, I just found your channel and subscribed. I love this type of info. !!!
Amazing. Thanks for the clever engineers.
Thanks for the explain. Great ！
Alright got it, good video. Now what I really want to know about is an interplanetary gear set!
Amazing!
When I finally undestand it, Eletric Motors comes and render it completelly useless!
Nice touch getting Robert Forster to narrate this!👌🏻
Educational Service... GREAT! Thanks..
These robot voices are getting really good!
You could make an equal wheel spin differential with 2 of these. Awsome!
I have zero practical need for this channel. I cant stop clicking their videos though.
Amazing! This video helped me a lot
Why I'm watching this at 4 AM instead of sleeping? I'm not even into engineering.
because you are inspired?
You will. Google knows.
Do you have a bicycle with one of those hub gears like Sturmey Archer (in UK), Bendix (in USA) or Sachs (in Europe)? This is how it works. You don't have to be into engineering to ride a bicycle.
Here I have my infinite reduction machine :czcams.com/video/CQbX-Gk7Xgc/video.html
Same here
Thanks for the lesson! It's very useful :)
Also I would appreciate if you made a video on how to calculate the planetary gear ratio.
best video about the planetary gear!!
Thank you so much may I admire the team so made the animation for get understand Planetary Gear drive Principle
I’m only 12 but managed to make an entire transmission with this video
I love engineering
mee too
me 4
me 5
Ok
Me 6
Thanks. I was not able to grasp things clearly while reading the book but this video made concepts clear 👍
Brilliant video ! 👍
Sir, can you please tell me which software did you use to design these animations.
Your videos are awesome.
I have cleared BE in 2017 and understood this concept in 2021 😝😝😝.
God bless you Sir. Make more and more videos Sir.
You must be a disgrace to your parents
Most appreciable vedio. Great effort.Thanks.
Elegantly simple, classic engineering thought.
I learned this more easily when I was 12 years old by reading a series of carefully written car books, produced in 1957 and offered for free by GM. Specifically - "Power Goes To Work (In the Automobile)" and revised in 1969. And it does help to be in a calm state of mind. Ha ha.
My brain is exploding.
Nice
I know! I'm trying real hard to keep up too! Lol
Haha
@dex dipa hahahahahaha
.
....
awesome video. Thanks for saving our planet!
Thanks for the explain. Great!
Спасибо за ,,обьяснение,, принцип работы- сам додумал
This gear also used in cordless drill
A complex concept explained simply !
Simply fantastic 👌👌
all the animations are good.
I want more learning videos on carburetor because no such a explaining video on CZcams that explain working of solex,su,or Carter carburetor .
please create animation video on above type of carburetor
pay the man
Also an interesting application: the hybrid drive from Toyota...
Yes. Toyota calls it the Power Split Device (PSD). Motor Generator 1 (MG1) is connected to the sun gear, MG2 is connected to the ring gear, which is in turn connected directly to the driving wheels, and the internal combustion engine (ICE) is connected to the planetary gear set carrier.
@@qwasrfg If I understood correctly, the ratio between the ICE and the wheels when MG1 is not turning, is comparable with a classic transmission's 5th gear... driving away from stationary happens on the power of MG2 and only at a certain speed the ICE is turned on and gradually takes over... MG1 regulates the ratio between turning speeds of ICE and wheels. Cool application, and seems to be rather reliable.
@@marcdecock7946 Yes. You have perfectly understood how the Toyota hybrid synergy drive system works. And, as you have explained, the way the ratio of the contribution of torque from the ICE to the wheels is regulated by MG1 is why Toyota calls it an eCVT (electric continuously variable transmission). Normally, the ICE kicks in around 60km/h, unless you press the accelerator pedal hard. If the ICE is running, any excess mechanical power is converted by MG1 to electrical energy and sent directly to MG2 to drive the wheels (in which case the system becomes a series-parallel hybrid) or sent to the battery to be stored for future use. If the wheels lack power, electrical energy from the battery is dumped into MG2 to help the ICE if the computer calculates that this is the most efficient way of using the available energy (petrol in tank and electricity stored in the battery). When you lift your foot off the accelerator pedal and/or press the brake, MG2 becomes a generator and charges the battery. If the battery is full and you are running downhill, there is a B (brake) mode you can use. In this mode, the electrical power from MG2 is sent directly to MG1. This causes MG1 to spin the ICE, the latter working as a compressor since no fuel is being injected in the cylinders. Thus you still have conventional engine braking but without wasting a single drop of fuel. Beautiful technology!
@@qwasrfg I agree, it's not that much additional hardware, and the result is worderful. Also recuperation of brake-energy... I did my thesis on CVT's with a V-belt, too much wear and tear . I understood Toyota is also looking to make a hybrid driveline with a double planetary gearset, even more fun, but they seem to have some difficulty to optimize it with electronics...
Just found your channel, wish I had this when I was an undergrad hahha thank you for the wonderful content!!!!
Excelente videos, gracias desde México
BMW with a transversal engine and front wheel drive? NNNOOOOOOOOO!!!
Exactly the comment I was searching for LOL! On the spot!
RIP real BMW
I'm afraid the nightmare had become reality since the release of the new Clio... I mean 1 series
Here I have my infinite reduction machine :czcams.com/video/CQbX-Gk7Xgc/video.html
We had a 1series with rear wheel drive, now an X1 with front wheel drive...
You would probably say the x stands for ex-bmw, but it's not so bad, especially with some snow on the road.
BMW with FF layout model xDDD
I have imagined whole day, it was hard but finally your video cleared the concept. Thanks to your team.
Stunning Explanation.
2:47, How do you rotate the ring gear? There is no shaft connected to the ring gear for torque input.. please explain
If you want, the ring gear can be it's own wide shaft.
@Mr Sunshines wow harsh reply. At the risk of sounding like a moron myself I have to take it. Can I have a Ring gear be the drive gear. For example it would have teeth on the outside as well as inside. The outside teeth are rolling down a rack gear like a wheel on a railroad track. I would make the planets stationary and the sungear is my output gear. I basicaly need an 8" diameter wheel that is rolling at 20mph or 840rpm to turn a shaft 3,000 rpm. I thought planetary gear set up would work well. Thoughts?
@Mr Sunshines u could just say refer to 41 seconds into the video when the animation is complete.. and also mention the power input turning the planet carrier turning the pinion gears which turn the ring gear? Instead of just calling someone a dumbass..
@Mr Sunshines lmfao you are a joke of man
@Mr Sunshines no counterarguments in any of his replies.. just the word "dumbass"
Look everybody!! We found someone who thinks they're cool because they understand simple gears! Lmfao
kind of feel like the narrator tone is pat-ronizing me because I don't know shit about gears and am watching this for fun.
I am surprised that he is still alive: he MUST be the guy who did all of the voice-overs in 1950's feel-good newsreels!
Dare not judge a helping hand.
It is easily explained so nice.
Awesome Explanation 👌
I understand very well 👩🔧
Thankyou So Much Sir 🙆💕
wheel within wheels 🥺🤤👽
In the corner of your mind
You lost me at 00:01
Me, too. This 'explanation' is totally impenetrable to me. In my experience, technical experts are quite unable to explain a concept like this to a non-scientist, non-mathematician, non-technical person. They just do not know where to start. I have just watched it again and it was even more confusing a second time. It reminds me of science at school.
🤣
@@orglancs maybe you just don't have the aptitude for science? Different people have different types of aptitude.
Sangramjit Chakravorty Thanks for your reply. yes, of course, and that is probably true. But I would certainly be able to understand how it works if I had one in my hand and could rotate the gears and work out how they fit together. But technical people definitely do not seem to be very good at explaining things to non-technical people. I have watched many explanatory videos on YT on scientific and mathematical topics and haven't found a single one that is simple and clear. They always move far too quickly an d assume you know all sorts of things that they take for granted, which you don't actually know. The worst are the mathematical videos. With a practical item like a gear, you can at least imagine its reality, but as for calculus or anything with equations in it, well .... I gave up long ago. I would just love to pin down a mathematician, face to face, and ask questions. Where does that new quantity come from. Where is that x squared from? It has just appeared out of the blue without explanation. Everything is so abstract. How does one know that the items in an equation refer to something real? Maybe be the mathematician has just made them up?
@@orglancs I feel exactly the same about all of these scientific topics. Technical people seem to live in their own world and are incapable of thinking like a non-expert. Sadly there are teachers like this as well, and they just skip over a lot of steps and expect you are able to follow... It's rather frustrating.
you guys are just awesome.. thanks for the best engineering videos
I need a video like this, explaining the power split mechanism from a Prius 3rg gen.
What causes the planetary gear set to become damaged?
nothing. It is constantly meshed. Clutches and brakes can wear out though... alsong with hydraulics
@@LexusGX460-OFF-ROAD I have a 2022 Tahoe with 7000 miles on it and the transmission started making a noise. The service department said the planetary gears were damaged. What other part malfunctioning would have caused them to become damaged?
@Michelle Gibbs just trade the Chevy for a Toyota or Lexus... 😃
@@michellegibbs6907 lack of lubrication from insufficient oil pump pressure will cause the gears and/or the bearings inside the planet gears to overheat, burn out bushings, etc. or serious abuse can damage the planetary gears.
@@Isjix4410 thank you for that information. I want to make sure whatever caused the planetary gears to become damaged is fixed.
Front-wheel drive BMW?
The BMW 2 Series Active Tourer is a FWD....
Niklas Ohlsson active tourer is not true bmw
rcomascat Every Mini is a BMW. Every Mini is fwd.
@@rolyfisher9137 we had a 1 series RWD before, and an X1 FWD now... both 136 hP The 1 series was more fun... for us with good weather, for others with snow on the road...
We also have a smart with RWD, but that has no comparison with the 1 series. It's more likely to flip over (than to give you more grip for the driving real wheels when accelerating).
great video which help me understand the principle quickly :D
This is great information thank you
Ага. Теперь все понятно. Осталось выучить английский язык
😂😂😂
Should be titled:
How to complicate simple
good explanation in short.....love it..
u r great my favorite teacher - love u - n keep it up - thanks
Don't understand this mumbo jumbo. Great video though!
Welcome back, fakest of fake voices!
Pat-reon lol
Is it software? If yes which one?
John Leo RTFD: READ THE F***ING DESCRIPTION
very educative. Thank you regards
Lovely science! Keep it up.
Its hard for me to understand this shitness!!!
so, you are dumb
thanx learn engineering.
Nice video !! Thanks you
Cool. I love your animations
A great concept of gearing,
Really awesome...
You are excellent engineers 🙌
Very good explaination
I love your videos
Thank you !
Danke, genau so dachte ich auch seit langem.
Thnx. Very helpful to me.
This shows the power of graphical explanation!
Gracias por su explicación
Great video!
great work
Great explanation