Internals of Quartz Clock Mechanisms

Clock repair

Hello and welcome to Robert masalas guide into the internals of quartz clock mechanisms. Now for this guide, I’m going to slowly guide you through a quartz clock mechanism. I’m, going to show you what’s inside it? How all the pieces fit together with the eventual goal of you, maybe being able to take it apart yourself and see what’s going on so here you see a standard, squats clock.

I bought it from a local Kmart and it only cost me three dollars, so I would suggest if you want to follow along, you too should buy a cheap clock from a store near you and use it for the sake of testing.

Now, to save you the trouble of what you need, disassemble, it’ll. I disassembled another one earlier, and this is the mechanism that is inside. If you look at the back of this clock, you & # 39. Ll often find the mechanism right here.

So let’s, pretend that I didn’t that cure all that extraction process in front of you, and now we are left with this. This is their clock mechanism. Usually these hands clock hands are sitting on there and you they spin.

As this dial spins, I’m sure you can see how that all fits dealer. You stick a battery in the back here and you spin this thing to change the dials at the front and spin the hands into the correct position.

Now we want to look inside this, so we’re, going to open up these little Clips judo here and here and take a closer look, so be careful with this just pop something in there like a screwdriver or some other part.

You might have lying around give it a bit of a crack, open, try and be careful. I’m, going to be as careful as possible, but there’s like a 50-50 chance that all the parts will just fall out anyway. So there we go cutting it up gently.

Ah careful, careful, careful – and here we go here – are the internals of a quartz clock. As you can see, some of the pieces got left behind over here instead of over here. So I’m, going to what I’m going to do.

Is I’m going to transfer some of it, so I’m going to pick up this. I’m, going to transfer it over here, just so that it makes a little bit more sense for you when you take a look at sorry about the minor delay.

Sticking this thing carefully. There we go. This guy is here this guy goes here, and this in fact goes here. Sorry, one! Second, there we go. Thank you for waiting, so I don’t know if you can see this very clearly yet, but that is the inside of a quartz clock.

You see the two components right there now, hopefully, one of the first things that jumps out at you is this: this chrome II, brownie metallic material, is a solenoid, and this here is a device if it spins.

Now I’m, going to show you fundamentally how it works. You know this is the clock piece. You know that every second, this clock has to make one tick of the seconds hand, so it & # 39. S got to tick every.

Second, I’m, going to show you that tick happening now to do that properly and I’ll pop this gear off again put it down there and what I’m going to do. Is I’m? Going to grab a battery just to stand battery now I’ll pop it in place right here.

Okay, push it down a bit to make sure the connections happen. Oh sorry, everything’s not quite in place. Yet underneath has in fact come loose. Sorry, it seems like I & # 39. Ve got to take this off again.

Sorry, just that one piece fell out of line. Two pieces fell outta line. How are we gonna get in there? Slowly but surely you’re, getting a good view of the seconds of the hours and minutes hands at the moment, and I’m just going to jam everything back in place like so okay.

You should see the first thing happening now. You hear that you see that the clock is spinning and moving cool. You should notice that that piece is going. So this piece is the first gear in the system.

It’s rotating right now. If I pull it up to see what it is. Look at that it’s, nothing special! There’s, just a little hole here where it spins freely on top, and you got this device here now. What is it it’s, nothing less than a magnet, and I can prove that by getting this here and proving that it is in fact, a magnet, see, sticking defying gravity magnet and this magnet is being affected by the solenoid such that.

When I put it in and make sure it gets connection it spins, but your card probably wondering how’s, it spinning at the moment so to make your life easier. I’m, going to mark this little gear with the textile.

So that way you can see what’s going on there. You go cool. You see that little black mark on it excellent! Let’s, make it spin. Now how interesting it’s, spinning pretty much exactly 180 degrees. Now we put a bit of a challenge here.

Is it spinning 180 degrees stemcell by going forward back forward back forward back? We’re, just spinning one, two, three, four, five! Six! So in circles, so the question is: is it going back or forth opposite spinning in circles, and you probably can’t tell it from this, but if I put another component in it’ll make it quite obvious.

What’s going on, so let me go here and put this gear back in place now, so pop this in place, figure now watch that little dot. You see right there as this goes to start spinning. Are you seeing it how that little thought is rotating around now? You know that if this gear was spinning back and forth so too should this gear be spinning back and forth, but instead this gear continued spinning around in a circle.

So you know that this two must be spinning around in a circle round and round and round so that’s, good, that’s kind of what we respect right. You don’t, see any special gears here to compensate for a reverse motion, so it would make sense that, since the second hand on the clock always keeps being in the same direction that so too should these gears also always be in the same Direction and as you can see, this gear is translating this gear that’s translating to this guy, and this is the seconds hand now, since this is spinning 1/2 for every second tick and every 2 seconds it does one full revolution.

We can expect that 60 half ticks equals one complete revolution of this or 30. Revolutions of this is one full revolution of the second set easy peasy. So you’re, probably wondering now that we’ve got the seconds hand spinning.

How does the seconds hand spin the minutes hand and that’s? What this gear help stir. So if we put this guy in place and shove him in there and apply pressure again to the circuit, we can see that the seconds hand slowly spins.

This trend this one now I’m, going to disconnect this and take this off, but before I go, you might be wondering what is it about this circuit that makes this gear always spin in the same direction and it’s? Simple watch this: this is about the center of the solenoid.

Let me try and get you a better angle there. So you can see it there we go. You would probably agree that this is lined up centrally with my solenoid, and this here is the center of my gear. So the magnet isn’t put directly in line with the side.

It’s, put slightly off-center, so the one the pressure of the electromagnetic waves paw paw ointment coming out of the solenoid come out. It’s, going to kick the motor from the side and cause a spin like that, and when you get this metal bar through there as well, you’re, going to get a north or you’re going to opposing Poles for me on that side, so not only is the magnet constantly being pulled in opposite directions from that way, but it’s, getting a kick from this way as well, which is causing it to always spin in a counterclockwise direction.

I hope that description made sense because it’s, a really important part of how this amazing mechanism works. The only other thing you might notice in here is this small silver capsule, and there that small silver capsule is actually a container and that’s, where the quartz crystal is that gives this device its name.

Now I’m, not going to explain how quartz crystals work. There are plenty of good guides for that, and in fact I may try and put a guide along the bottom here, or at least the link to the guide. Now, as well saying before the seconds hand spins this, which I promised you spins the minutes hand, so let’s, try and see how that comes together by taking things off slowly.

So you know that this gear Center, it’s. Little spin out down that hole, I don’t know if you can see it too clearly, but that hole touches the gear directly underneath. So let’s pop this gear off. We’ll.

Take this guy out and, as you can see, it forms a stick that goes straight through and out of here, so that it can touch the seconds hand. So the seconds hand goes right through the middle right through the center of the device.

Now let’s pop this guy off, along with the motor and other materials, and if you look under you & # 39, ll see that this is the minutes gear. This gear spins once per minute, and it’s, controlled directly by this guy that we saw underneath so it comes down and connects almost like that this one keep in mind because it’s, a bit of a special gear.

I’ll, explain why it’s, a special gear in a second put that there now the minutes gear, as you can see, has a little gear underneath it that spins this guy and this guy down samples that rotation to this, which Is the hours hand, so the cool thing to note is that the hours hand is like that the minutes hand forms a smaller cylindrical hole through it like that, and then you & # 39.

Ve got the seconds to go through the middle again, and that is how you get your three concentric layers of clock hands. Now I promised you that the minutes hand was a special one, but why is that? And the reason is this on this plate over here.

You’ve, got this little button that spins like this right and it spins this gear for the purpose of quickly setting your clock to whatever time you want. I mean. Hopefully, you’ve used one of these clocks before, and you know that when you spin this really quickly, it modifies the time.

However, you may have also noticed that whenever you spin this the seconds hand doesn’t move the minutes, hand, moves and the hours hand move, but the second one does not. Now, if you look at it carefully, this when it comes in see over here, is dry, followed closely it lines up over there.

So it connects right here and spins this gear, see if you connected that with spin this gear and that in turn, this gear and turn rotates plumbing/plumbers the other two. But since we know that this connects upwards through the layers to this gear, and this in turn is connected to the seconds hand, why doesn’t the second sound spin because of this gear check this out.

Despite the fact, this gear looks solid. This layer here is actually disconnected from the rest of it. I’ll hold the top layers steady, and I can spin the bottom layer freely. Now there’s, you can’t feel it, but there’s.

Enough friction going on here that, when the clock is usually spinning in its normal operation, the friction will be too high for any slippage and that’s. Probably what this metal bar is for as well. But if I apply a lot of force really quickly through this, then this will slip and the seconds hand won’t be translated through and that’s, pretty much how this quartz clock works.

So if we look at it and we were to tip out each component one by one, if we started from scratch first, we put the hours hand in then we have to get the gear to move between the hours hand and the minutes hand.

So the minutes hand goes in and there we go. We’ve got a connection, as you can see. Once we’ve done that we & # 39, ve got to put the layer on that, contains the motor and the little pinion gear that powers the whole thing via its tiny magnet.

So we stick that on top like so for a bit of stability, we’ll, stick the seconds hand straight through the hole we get the gear that connects the seconds hand to the minute hand, and we put it on top and we get the Year that connects the warp engine or motor whatever you want to call it.

To the seconds hand, we stick that in there like, so once we’ve done that we can then go back to putting this on top again and there you have it. We & # 39, ve got our whole gear and you can hear it spin here yeah and if we rotate this, you can hear that it’s still going, but we’re able to move the second.

We’re, able to move the minutes and hours hands so just to prove to you that it is in fact the hours and minutes hand only that’s been when I move that lever. Let’s quickly. Stick these guys back on, so this is the Ahlers grooming

As you can see, it goes on the outer layer of the blue one. We’ve got the minutes hand that goes on the outer layer of the white one, and we & # 39. Ve got the seconds hand they connect to the little metal rod in the middle like we saw such that now watch this.

If I spin the backlit look at that, we get the minutes, hand moving and we get the hours hand moving, but the seconds hand is staying dead still exactly as we expected. Sorry about that, I bumped the camera and, as we can see, the clock itself is spinning the seconds hand at regular intervals.

I hope you enjoyed this video. It should fully explain the fundamental workings of this rather amazing device. The bit that I’m. Personally, most impressed with is the little motor that is controlled Ossur precisely with an electromagnet and that’s it.

This is Robert Massey Ollie’s, video on the clock mechanism, internals. I hope you have enjoyed another one of my works and that I continue to show you interesting stuff about clocks in the future. With any luck, I & # 39.

Ll have more clock videos to come.

Source : Youtube
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