Mechanical engineering teachers in schools should definitely use videos like this one as complementary material. These videos are the best examples of different mechanical systems working together ingeniously!
I have always had a fear of elevators mostly for the drop. But this video has helped me understand better. Maybe now I just have to b worried of being stuck inside.
HUGE thanks to you for ensuring these mind-blowing elevators are working safely and efficiently. Earlier today, I went to the top of the city hall in my city via elevator, and my respect to people like you increased immensely.
Is it normal for elevator have gap 50cm between elevator and the wall? In my place there were a woman just died by accident in elevator, she doesnt realize those elevator had 2 door and while the elevator still moving she got panic cuz the door doesnt open. She tried so hard to open the door, once the door open she quickly get out and fall to the ground.
@@simsimi1227 That is a sad story. If the elevator cabin is between floors it can be possible to have a gap of 50cm from the cabin to the wall, but if the inner door is closed you are always save. Never try to get out of an elevator when it brakes down, you are always save inside, just wait for the engineer to get you out of the cabin savely. That woman didnt have to die if see just waited.
@@Rockzor98 yeah it sad, she just fell from 2 floor to G floor. And the body just found out after 3 days. Most people blame the design of the elevator like why it had 2 doors, why it had gap between the wall and the elevator but it also the woman fault cuz she dont pay attention which door has open. She panic, and try so hard to open the door while the elevator is moving once it open she quickly get out
@@apple26j I feel like we're past those times of "only kids do it" anyway, I'm an adult in my late 20s and emojis became widespread when I was still in my early teenage days... Time flies 😅 before that we used text emojis :D I still prefer them sometimes :p
@@officerjohns9554 you're showing your age if you think emojis are only for kids, cuz kids of yesteryear are now adults and they still use them. How the time flies eh?
I've seen the elevator room before and got a basic understanding just from watching it work, but now I know whats going on in more depth and next time will play closer attention to these steps.
In modern elevators, there is no worm gear, the traction sheave sits directly on the shaft of the motor, just like the brake sits directly on the motor. However, synchronous motors are then used here. And more and more often, the counterweight for elevators in small residential buildings is not 50% but only 40% heavier in order to save some energy in most cases, only under full load is a little more energy consumed, which rarely happens. The safety gear is now also operated electrically and there are no mechanics such as a Overspeed Governor
After watching this video, I directly went to your channel and watched all the videos. And now I truly want you to make more videos like this one. I am madly curious about the engineering behind all the techs and when creators like you make such wonderful videos, you instantly win our hearts and our attentions. Great work Engineering Animations. I wish your channel will achieve 50K subscribers till 20th March 2023 (cause that's when your channel will become 1 year old).😉🤜🤛
the IT behind it is easy if you got the hardware. on the internet you can find codes about that easily thats not hard. and put in some microcontrollers. wire those to the motor. and its done. all the safety mechanismes make it way harder to build. I built a 4 story lift. about 1:20 size. but without a couple safety mechanismes. only counter weight and damper
when the elevator runs many floors - say 50 - the wire ropes may also play a role. When the car is at the bottom the wire ropes will add to the car - and vice versa, when the car is at the top, the wire ropes will add to the counter weight. I would guess that the weight of the wires could be higher than the number of riding passagers, - or......?
Great video! Everything is clearly explained, and I liked graphics illustrations. However, I was wondering, what happens if sheed cable is broken as well as main ones. Will elevator fall?
How the button signal transfer to the motor, and the CCTV transfer to the monitor? Do the cable attached to the wire or it is ground to the vertical track?
The emergency brakes on elevators aren't like that at all. They are much better, they don't rely on overspeed to activate, the cord breaking will cause the brakes to activate, the elevator will fall less than one centimeter max.
this video is great, but it is missing my personal curiousity of how elevator able to stop at amazingly precise level. why they never once overshoot and need retreat, given how much inertia it has
Thanks for this tutorial. This leads to the question of why the elevator certificate for passenger elevators lists the maximum weight instead of maximum people? It's easier to visually determine the amount of people than it is to compute the total weight of the people that just boarded the elevator.
Because people don't weigh the same. If the certificate told you that only six people could ride the elevator safely and six 300 lb people tried to squeeze onto the elevator it would surpass the maximum weight for safe operations, but by quantifying the maximum weight instead of bodies various numbers of people can board and ride the eleveator all within the maximum weight threshold. And it just takes the law of averages to calculate the weight of a group of people. Based on hieght and BMI one can safely calculate a rough estimate of weight of a group of bodies boarding an elevator. Besides a good rule of thumb would be comfort will "outweigh" safety. Not many people will want to crowd into an elevator that has too many people cramed into it, thus reducing the chance that too many people will occupy the lift.
As an anecdote: I was once traveling with a high school group in Washington D.C. The hotel we stayed at had us on four different floors. One evening after we had gone to a show and dinner six of us (we were teens) crowded onto an elevator that already had four adults on it. Two more people squeezed into the car, and the outer doors didn't even close when an alarm buzzed and a panel lit up saying the car was too full. A voice them came over the speaker (security or maintenance) requesting that the car clear. My friends and I decided to get off and allow the others to ride and waited for another car.
Awesome video. But I'm curious about something. I've noticed most engineering videos like these seem to avoid the word "the". Is there a particular reason for this?
question for the counterweight : Most of the time the elevator is empty and not with half total capacity. Wouldn't it be better for the elevator to just have the elevator weight as counter weight ?
In this case, the drive would have to be designed much more powerfully, since in the worst case it would have to move the entire payload. In small residential buildings, however the counterweight is increasingly designed to be only 40% heavier in order to save some more energy, since full load is only rarely used here will
… Elevators are not usually loaded to half of their capacity; they are usually *empty.* Is it really best practice to use half the capacity for the counterweight?
As a lift engineer I can confirm this is all correct. In case anyone was wondering the emergency brake fitted to the bottom of the car is called a safety gear. Hopefully will see some videos about some other types of lifts such as Hydraulic, Dumbwaiter, Scissor and Stairlifts. They’re great to show people who don’t quite understand
there's one elevator accident which the car plummeted eight floor to the ground causing multiple injuries despite all the safety thingies , recently in a southeast Asia country.
The animation is amazing, but the facts told are partly inaccurate. There are tons of different elevator types, an important fact you forgot to mention - the ones shown here are a MR Traction 2:1 and a MR Traction 1:1, elevator types only used in high-rise buildings. You should have explained a MRL Traction 2:1 instead, since they are most common nowadays
@@tvrtkokotromanic8391 Why would you use water. That means that it has to be connected to the water mains or have a water tank, which is expensive. It's much easier and safer to just have it stop and then an engineer can come and get you out.
@@nelsonahlvik6650 Since when is it water and a carbon fiber tank more expensive than a block of metal of the same weight.And trusting in engineers or rescuers today in the age of energy crisis where entire cities can be left without electricity is.
0:34 A "worm wheel mechanism which will be explained MOMENTARILY". What you mean is that it will be explained in a moment. Momentarily doesn't mean "in a moment". Why do Yanks always get this so wrong?
If train cant exist yet, if a ballbearing type wheel or magnetic lightness(repel) like elevator, for a Numbering location? I think if adventure can be like this(a secret forest/island/isle) or farms(example: location 1 = hybrid of 2 plants, etc.)? I think everyone of them pretending some never exist to keep having something that is a pleasure removed from our life secretly.(means something we have seen the existence but keep being told as dont exist). Means even if like a wish, it is real abt "removing a pleasure"(blacklist or psychosis to boycott). Then freedom in forest in mind is kept distracted.
Now i know why well designed elevator are expensive. Make my temptation to try to create a cheap elevator with only a chinese motor like in 00.24 go away :v
Mechanical engineering teachers in schools should definitely use videos like this one as complementary material. These videos are the best examples of different mechanical systems working together ingeniously!
I have always had a fear of elevators mostly for the drop. But this video has helped me understand better. Maybe now I just have to b worried of being stuck inside.
No children should boycott schools and learn from home. Schools are prison.
@@praisekjames7628 yeah, school is slavery too
th-cam.com/video/P9LyKTnPVIE/w-d-xo.html
@@toto8448_officialYTdesign tech secondary school yes im british dont ask!
I am a elevator mechanic and the detail and accuracy of this video is amazing.
HUGE thanks to you for ensuring these mind-blowing elevators are working safely and efficiently. Earlier today, I went to the top of the city hall in my city via elevator, and my respect to people like you increased immensely.
@@Snowy-oq4ur I really appreciate your comment
Is it normal for elevator have gap 50cm between elevator and the wall? In my place there were a woman just died by accident in elevator, she doesnt realize those elevator had 2 door and while the elevator still moving she got panic cuz the door doesnt open. She tried so hard to open the door, once the door open she quickly get out and fall to the ground.
@@simsimi1227 That is a sad story. If the elevator cabin is between floors it can be possible to have a gap of 50cm from the cabin to the wall, but if the inner door is closed you are always save.
Never try to get out of an elevator when it brakes down, you are always save inside, just wait for the engineer to get you out of the cabin savely. That woman didnt have to die if see just waited.
@@Rockzor98 yeah it sad, she just fell from 2 floor to G floor. And the body just found out after 3 days. Most people blame the design of the elevator like why it had 2 doors, why it had gap between the wall and the elevator but it also the woman fault cuz she dont pay attention which door has open. She panic, and try so hard to open the door while the elevator is moving once it open she quickly get out
Best video about Elevators so far....
Her voice is so calming, great video
Thank you for such clear explanation of complex engineering behind the Elevators
Elevator ride feels like teleportation, every time I use it always feels like magic 😍😍😍
Okay fellow 9 year old kid
@@confusedsperm9521 why are you fighting?😏
@@gamepool8517 cause it seems obvious with the emoji and stuff.
@@apple26j I feel like we're past those times of "only kids do it" anyway, I'm an adult in my late 20s and emojis became widespread when I was still in my early teenage days... Time flies 😅 before that we used text emojis :D I still prefer them sometimes :p
@@officerjohns9554 you're showing your age if you think emojis are only for kids, cuz kids of yesteryear are now adults and they still use them. How the time flies eh?
I've seen the elevator room before and got a basic understanding just from watching it work, but now I know whats going on in more depth and next time will play closer attention to these steps.
I'm glad that I watched this video. I'll always feel safer in elevators from now on.
To anyone wondering, this is a traction elevator system.
20% How elevator works
80% How elevator prevent accidents
Tbh id much rather know how an elevator prevents accidents vs how it actually works
Either way there's more to them than most ever see. The control system gets pretty interesting too.
1:00
How an elevator works.
Everything else
How an elevator works SAFELY and EFFICIENTLY.
that is the most important thing
Do you think preventing accident is not "working"?
I'm a Retired NYC Elevator Mechanic and this video is awesome !!🫡
In modern elevators, there is no worm gear, the traction sheave sits directly on the shaft of the motor, just like the brake sits directly on the motor. However, synchronous motors are then used here. And more and more often, the counterweight for elevators in small residential buildings is not 50% but only 40% heavier in order to save some energy in most cases, only under full load is a little more energy consumed, which rarely happens. The safety gear is now also operated electrically and there are no mechanics such as a Overspeed Governor
Wow! I generally thought there was only a motor and guide wheels (from just being inside one). There's so much to an elevator, Great video!
After watching this video, I directly went to your channel and watched all the videos. And now I truly want you to make more videos like this one. I am madly curious about the engineering behind all the techs and when creators like you make such wonderful videos, you instantly win our hearts and our attentions. Great work Engineering Animations. I wish your channel will achieve 50K subscribers till 20th March 2023 (cause that's when your channel will become 1 year old).😉🤜🤛
Sound effect is really awesome. Please made more video
Yes
Of all the years I've used an Elevator, I've never known or cared for the engineering behind it till I watched this video.🤓
Good soothing voice with great visuals nice 👍
3:15 the guide pulley on the right is turning backwards, lol. Otherwise great tutorial!
As a software engineer I am more concern in knowing how the algorithm decide which elevator will cater the next passenger on each floors
and I have been wondering by how much you can increase waiting time and decrease speed before more than 10% of the people take the stairs
the IT behind it is easy if you got the hardware. on the internet you can find codes about that easily thats not hard. and put in some microcontrollers. wire those to the motor. and its done. all the safety mechanismes make it way harder to build. I built a 4 story lift. about 1:20 size. but without a couple safety mechanismes. only counter weight and damper
@@Knightfire66 that is totally not what he meant though, anyone can download code. he was asking about the logic of the software.
@@ersetzbar. why are you speaking for him? maybe hem ent the code itself.
Very nice video please make more video on electromechanical stuff
when the elevator runs many floors - say 50 - the wire ropes may also play a role. When the car is at the bottom the wire ropes will add to the car - and vice versa, when the car is at the top, the wire ropes will add to the counter weight.
I would guess that the weight of the wires could be higher than the number of riding passagers, - or......?
In such systems, chains or ropes are attached to the underside between the counterweight and the cabin, thus balancing the weight of the rope
Great video! Everything is clearly explained, and I liked graphics illustrations. However, I was wondering, what happens if sheed cable is broken as well as main ones. Will elevator fall?
no
no
How the button signal transfer to the motor, and the CCTV transfer to the monitor? Do the cable attached to the wire or it is ground to the vertical track?
There is a seperate electric cable
The emergency brakes on elevators aren't like that at all. They are much better, they don't rely on overspeed to activate, the cord breaking will cause the brakes to activate, the elevator will fall less than one centimeter max.
There is a chain which compensates the weight of the cables. The chain is connected to the bottom of the car and the bottom of the counterbalance.
Amazing animation!! Great video!
Greetings from Brazil
Nice video, but you forgot about the Otis brake
nicely xplained.what a master piece of technology.
Thanks for this wonderful video 🤍
Great explanation, Thank you very much for sharing knowledge 👌👌
Thank you for this clear explanation!
didn't mention the electrical system that is connected to all the doors, and electronic board that controls the elevator's commands
This wasn’t meant to be an all-inclusive video. Just the behind the scenes mechanics of it all.
This is about mechanical systems, not computer controls.
@@oldtwinsna8347 oh, ok... thanks =)
Great explanation
this video is great, but it is missing my personal curiousity of how elevator able to stop at amazingly precise level. why they never once overshoot and need retreat, given how much inertia it has
What if what ever caused the cables for the elevator snaps the cable for the overspeed governor as well?
Welcome to Final Destination 6
Which software is used to create animations?
Most likely Blender
Good and useful animation to learn elevator technology. Thank you.
Thanks for this tutorial. This leads to the question of why the elevator certificate for passenger elevators lists the maximum weight instead of maximum people? It's easier to visually determine the amount of people than it is to compute the total weight of the people that just boarded the elevator.
Because people don't weigh the same. If the certificate told you that only six people could ride the elevator safely and six 300 lb people tried to squeeze onto the elevator it would surpass the maximum weight for safe operations, but by quantifying the maximum weight instead of bodies various numbers of people can board and ride the eleveator all within the maximum weight threshold.
And it just takes the law of averages to calculate the weight of a group of people. Based on hieght and BMI one can safely calculate a rough estimate of weight of a group of bodies boarding an elevator. Besides a good rule of thumb would be comfort will "outweigh" safety. Not many people will want to crowd into an elevator that has too many people cramed into it, thus reducing the chance that too many people will occupy the lift.
As an anecdote: I was once traveling with a high school group in Washington D.C. The hotel we stayed at had us on four different floors. One evening after we had gone to a show and dinner six of us (we were teens) crowded onto an elevator that already had four adults on it. Two more people squeezed into the car, and the outer doors didn't even close when an alarm buzzed and a panel lit up saying the car was too full. A voice them came over the speaker (security or maintenance) requesting that the car clear. My friends and I decided to get off and allow the others to ride and waited for another car.
Awesome explanation thanks
Great work
Very nice explanation thankyou so much 🙏🏼🙏🏼🙏🏼
Awesome video. But I'm curious about something.
I've noticed most engineering videos like these seem to avoid the word "the". Is there a particular reason for this?
Thanks for the helpful video!
This video is phenomenal 😍😍
Happy vertical people movers.
which software do u use to make your Animations
Great video's!!! Can i ask what software are you using to create the videos?
Amazing video thanks for the explanation, how do you create this animation videos?
Let us appreciate our engineers for a very well done work on this wonderful masterpiece that takes us to and fro👏👏👏👏😅
question for the counterweight :
Most of the time the elevator is empty and not with half total capacity. Wouldn't it be better for the elevator to just have the elevator weight as counter weight ?
In this case, the drive would have to be designed much more powerfully, since in the worst case it would have to move the entire payload. In small residential buildings, however the counterweight is increasingly designed to be only 40% heavier in order to save some more energy, since full load is only rarely used here will
Lot of thank for this video ....
… Elevators are not usually loaded to half of their capacity; they are usually *empty.* Is it really best practice to use half the capacity for the counterweight?
Weight balance can be achieved by adding an electro magnet. More passengers' weight can be balanced by varying power of electro magnet...
Yes, but how does the elevator know what floor it is on?
Good explanation 👍
As a lift engineer I can confirm this is all correct. In case anyone was wondering the emergency brake fitted to the bottom of the car is called a safety gear. Hopefully will see some videos about some other types of lifts such as Hydraulic, Dumbwaiter, Scissor and Stairlifts. They’re great to show people who don’t quite understand
As a elevator engineer too i can confirm the lift shown here is out of date. The motors used on modern elevators arent even roughly the same.
👌👌👌bahut badiya
how i could take more Knowledge about this topic?
which book or which online course
iam mechanical engineer
there's one elevator accident which the car plummeted eight floor to the ground causing multiple injuries despite all the safety thingies , recently in a southeast Asia country.
Should’ve showed all the electronics involved in the new elevators , especially ones with card readers and lcd displays
Oh wow! And I always just assumed they worked by magic...
Thank you for video but Persian subtitle please 🥺
Gosh.. What a sublime voice 😏
Love❤ from🇮🇳
Très belle vidéo 🙏
Had to come here after Jared Owen's video, the counterweight mechanism wasn't deeply explained in his video.
The voice over sounded just like the computer overlord in Logan’s Run.
What happens if the backup brakes fail?
What would happen if you die before your birth....
You have the rest of your life to think about your impending doom in that scenario:)
Final Destination movie series.
Nice video superrrrrr
Very informative video.
Very good video
The animation is amazing, but the facts told are partly inaccurate. There are tons of different elevator types, an important fact you forgot to mention - the ones shown here are a MR Traction 2:1 and a MR Traction 1:1, elevator types only used in high-rise buildings. You should have explained a MRL Traction 2:1 instead, since they are most common nowadays
Just tell me do they have the Backup brakes incase the ropes snap?
@@itsmanasK yes, all Traction and Roped Hydraulic elevators are required to have a backup brake
very good video
Why can’t they just attach another elevator on the opposite side of the pulley instead of a counterweight?
Very good...
Please send CAD model link
3:29 are helping me of me getting worried
10/10 very good work..
Use counterweight and elevator car @Jaredowen
Thanks!
Need more animations video
It's one of mechanisms
There are many mechanisms
It would be better if the brake did not stop the elevator completely it is better to lower the elevator to the first floor in a controlled manner.
It's alot safer to stop it compleatly
Also most of the time it is unbalanced (counterweight is heavier) so it would actually go upwards
@@nelsonahlvik6650 You can use water in the ballast. Slowly drain the water and lower the elevator.
@@tvrtkokotromanic8391 Why would you use water. That means that it has to be connected to the water mains or have a water tank, which is expensive. It's much easier and safer to just have it stop and then an engineer can come and get you out.
@@nelsonahlvik6650 Since when is it water and a carbon fiber tank more expensive than a block of metal of the same weight.And trusting in engineers or rescuers today in the age of energy crisis where entire cities can be left without electricity is.
This is good to know
Just like lesics 👏👏
You can see all of this in a glass elevator!
Awesome
It help me to understand about lift
Thanks
So cool
when i was young someone told me that there is someone pulling us up in the elevator by hand
0:34 A "worm wheel mechanism which will be explained MOMENTARILY". What you mean is that it will be explained in a moment. Momentarily doesn't mean "in a moment". Why do Yanks always get this so wrong?
I have one with a hydraulic piston 12 meters long
dat breathy breezy voice hummina hummina
I would go to the mall there would be an elevator and we would see what is in an elevator
If train cant exist yet, if a ballbearing type wheel or magnetic lightness(repel) like elevator, for a Numbering location? I think if adventure can be like this(a secret forest/island/isle) or farms(example: location 1 = hybrid of 2 plants, etc.)? I think everyone of them pretending some never exist to keep having something that is a pleasure removed from our life secretly.(means something we have seen the existence but keep being told as dont exist). Means even if like a wish, it is real abt "removing a pleasure"(blacklist or psychosis to boycott). Then freedom in forest in mind is kept distracted.
Because life to be "only green" and no flowers, fruits(our path like they know everytime).
Something must be a human's wish(placing of seed).
???
This will be the next lesics and jared animation.
So Arkel elevator has fast motor *not very fast*
Nobody tells how you will get out of an elevator if there’s an earthquake
Now i know why well designed elevator are expensive. Make my temptation to try to create a cheap elevator with only a chinese motor like in 00.24 go away :v