In terms of function, it is actually divided into two concepts: balance wheel and hairspring.
In the 21st century.
The hairspring has been optimized to the limit and has become a rather thin spiral spring. 999 is used in mechanical watches.
It is about 3 to 4 times thinner than human hair, with a total weight of about 2g, but it can withstand 600g of tension and is quite tough.
In watches and clocks, the inner end of the hairspring is fixed on the axis of the balance wheel, and the outer end is fixed on the balance cock.
When the balance wheel is driven, the hairspring fixed in the balance wheel will shrink and expand evenly due to elasticity, and at the same time drive the balance wheel to swing back and forth.
The balance wheel is driven by a force that causes the hairspring to compress and relax, driving the balance wheel to rotate clockwise or counterclockwise.
Such a rotation period will directly affect the accuracy of the watch's travel time, thereby calibrating the time.
In fact, the balance spring can be used in a very wide range of fields.
Because it has an important relationship with clockwork
The power released by the spring is transmitted to the escapement system, driving the hairspring balance wheel to perform simple harmonic motion, generating a reaction force to achieve the purpose of deceleration.
However, with the development of science and technology, the relationship between the balance spring and the spring gradually developed cracks, or the balance spring was ntr
Ordinary springs do not need such precise movement correction, and advanced springs have other means to achieve more precise results, without the need for a balance spring.
Therefore, after a while, the balance spring and spring can only be seen in mechanical watches.
But who could have thought of it.
In the Northern Song Dynasty, Xu Yun actually saw a device composed of a balance wheel and hairspring?
Of course.
The balance spring here will definitely not be as fine as that of later generations. It mainly serves to connect internal links.
It's a coincidence.
While Xu Yun was observing the device, a rapid clicking sound suddenly came from inside the device - the sound sounded like a bucket being thrown down the wellhead when fetching water, and the rope on the cradle's cradle was quickly being pulled.
extraction situation.
Then there was a sound of rushing water from the bottom of the device.
It is clear.
Over in the main room, Lao Su was washing and scrubbing with water.
A few more seconds passed.
The sound stops.
During this process, the rope pulled out by the millstone was not affected and was still being dragged outward.
It's reached this point.
Xu Yun already understood everything without taking apart the device and taking a closer look.
The water delivery device in the Su Mansion may not cost much, but the technical level contained in the entire process is extraordinary!
This is a sophisticated, interconnected planar water supply system
The entire pipeline is about 100 meters long and is laid under the ground.
The material of the pipe is unknown, it may be stone or metal.
Every day, a servant would test the water in front of the maid to confirm that it was non-toxic, and then pour the pre-drilled well water through the stone pillars.
Due to the height of the stone pillars, the gravitational potential energy is initially converted into some kinetic energy - and some of it is lost in the collision, thus causing the well water to flow forward.
About ten meters in front of the entrance, a self-priming pump is installed.
This self-priming pump actually didn't work at first, and simply blocked the water on one side.
at the same time.
There is a donkey on the ground pulling the millstone, and the bottom of the millstone can be modified to activate the rope.
The starting point of the rope is on the other side outside the courtyard, and its length may be twenty or thirty meters.
Xu Yun could not guess the specific length. He only knew that it was passed through the ground facilities like a needle and connected to the millstone.
As the donkey began to pull the millstone, the rope was retracted like a kite.
The traction of the rope drives the accumulation of springs in the device. There may be several of these springs, and the balance spring is responsible for calibration.
When one spring is fully charged, the next one will continue to be charged until it is fully charged.
When the main room or the west wing needs water, you only need to hold down the switch and turn it gently.
The spring will convert the accumulated elastic potential energy into kinetic energy, instantly providing enough power to operate the self-priming pump.
This is also the reason why the diameter of the pipe is as thick as thirty centimeters
First, it is to store water and avoid repeated filling within a day.
Secondly, it is to prevent small pipes from bursting due to being unable to bear the instantaneous stamping pressure.
"Flywheel self-priming pump balance spring spring"
Looking at this set of rigorously operated equipment, Xu Yun slowly stood up from the ground, his eyes shocked.
Although from his perspective, this equipment still has many areas for improvement.
For example, the potential energy conversion efficiency of well water is not high at the beginning, and the stone pillars can be adjusted to tilt.
Another example is that the rope can be changed to a flat shape similar to that of a fish to increase friction and energy storage, although this will make the donkey more tired.
But don't forget.
Xu Yun is a modern person.
Looking at the technology of the Northern Song Dynasty with a modern perspective is the same as using a 22-year reading perspective to criticize early online books such as "Panlong" and "Dou Po" as poisonous. It is a completely meaningless act.
Judging from the current level of technology, Lao Su's device can undoubtedly be regarded as a pinnacle technological achievement.
Although it is not clear how precise the internal structure is, Xu Yun can guarantee that there will be no problem if it is at least four hundred years ahead of the West.
Four hundred years later, it was the 16th century, and at that time, the West had not yet reached the stage of rapid technological advancement.
Think of this.
Xu Yun subconsciously raised his head and looked at the sky.
Guang Laosu's temporary residence in Bianjing can still see such an exquisite water supply device.
So this dynasty died suddenly because of the Jin people, or in the long history of China for five thousand years, how much wisdom of the ancestors was buried in the long river of time?
I'm afraid no one can give an accurate number.
at the same time.
Xu Yun's interest in Lao Su suddenly became more intense.
Although Lao Su made many inventions and creations in history, unlike Mavericks, Mavericks was considered the 17th century at that time, and a lot of various materials and even autographed manuscripts were left behind.
The world's understanding of Mavericks is relatively clear, detailed and authoritative. Everyone knows what kind of character Mavericks is.
But Lao Su is different.
There was a gap of nine hundred years between the year 1100 and now. In addition, he died suddenly in the Northern Song Dynasty, and a large number of ancient books were lost.
Therefore, Xu Yun and later generations did not have a very intuitive understanding of Su Song's abilities and character.
In fact, not only Su Song, but also many famous scientists in ancient times were like this.
For example, Zu Chongzhi during the Southern and Northern Dynasties, some even thought that he plagiarized other people's achievements.
There was a figure under him who looked like Qu Ah, and Zu Chongzhi relied on this person to come up with the "Daming Calendar".
As for if you ask for his name and basis, these people will reply to you, "The information was destroyed by Zu Chongzhi, so you can't find this person."
I don’t know what grudges those people have, but they insist on pouring dirty water on some sages.
Xu Yun then shook his head and returned his mind to reality.
Looking at the device that was still rattling, he suddenly thought of something, and an uncontrollable smile appeared on his lips.
Having said that, in local history, the inventor of the balance spring can be regarded as an old acquaintance of mine.
he is called
Robert Hooker.
Note
Considering that some readers may have objections, let me explain. It is now recognized that the hairspring was invented by Hooke in 1664, and the verdict was overturned at the Swedish BT conference in 2009.
Huygens is currently in the Chronicle of Physics course at Oxford University, and his definition of a hairspring is a corrected spiral hairspring. This course can be accessed on the computer in the university library.