Author: Xiaoyaohu

Qu Mao, director of the Islands Power Research Institute, Bi Sheng, Yan Qisheng and their team members, under the leadership of Kong Ming, walked into the simple door of the Islands Machinery Research Institute.

In fact, the current Mechanical Research Institute is indeed a bit crude. After entering the crude gate, there are only four four-story reinforced concrete buildings, and there are six seven-story reinforced concrete buildings under construction behind it.

Obviously, even though there are only four four-story reinforced concrete buildings, they still look deserted and there don't seem to be many people there.

Kong Ming shook his goose feather fan and said to Qu Mao with a smile: "My lord, I once heard from the maid in the lord's cabin that you are very disgusted and hate climbing high buildings. I have expressed my dissatisfaction many times that your bedroom in the lord's cabin is located on the fourth floor.

satisfy.

So although there are only 12 researchers in the Mechanical Research Institute now, my subordinates have arranged for 10 researchers to study the automatic lifting device..."

Qu Mao was stunned for a moment and asked: "Kong Ming, what is an automatic lifting device?"

Kong Ming led a group of people around a four-story reinforced concrete building, pointed to the back of the building, and said, "Sir, please see, this is the experimental site for the automatic lifting device."

Qu Mao looked up at Kong Ming's finger and was instantly happy.

The so-called automatic lifting device is nothing more than a two-meter-square wooden cabinet on the top, tied with a rope at the top, and two ropes leading directly to the top of the four-story reinforced concrete building. There seems to be a winch on the side, and the top seems to be

There was a pulley, and Qu Mao could see clearly even without taking out his telescope.

Once the square cabinet needs to be raised, two people below will turn the winch, take up the rope, and the square cabinet will be lifted up by the rope.

This function is the same as the elevator in another world, but here it uses human power, but in the other world it uses electricity or other power.

After enjoying himself for a while, Qu Mao laughed from the bottom of his heart. Now that Kong Ming has begun to study the automatic lifting device, will the elevator be far away?

Qu Mao, who has been deeply involved in the development of industry and science and technology in the Holy Land of King Yi for several years, has deeply realized that all scientific and technological innovation starts from the initial solution of a practical application problem.

To understand this, Qu Mao carefully recalled the knowledge about elevators in another world, but after thinking for a long time, he could only think of the knowledge about fixed pulleys and movable pulleys, and could not think of anything more specific and detailed.

So after seeing Kong Ming's introduction, he was so drooling that he had to ask two researchers to twist the turntable and demonstrate it to Qu Mao. Qu Mao quickly waved his hand to interrupt Kong Ming and said: "Kong Ming, don't bother to demonstrate yet, I'm afraid you are in the wooden box."

The heavier the load, the harder it will be for the person below to turn the winch, right?"

Kong Ming shook his goose feather fan and said: "Yes, sir, my subordinates and researchers are working hard to find a solution to this problem. If the slide is smoother and the resistance is smaller, it will indeed save a little effort, but it will not work when coming down."

The speed of the box is uncontrolled.

My subordinates are also considering whether the gear set can be applied to this kind of lifting device..."

Qu Mao shook his head and said: "You can continue to take us to visit the Mechanical Research Institute and continue to introduce the ongoing projects of the Mechanical Research Institute.

After we finish the tour, you can find a conference room, and I will slowly explain to you some knowledge about the automatic lifting device. Of course, I don’t know much about it, but I have seen this kind of device before and know some simple principles...

…”

Kong Ming's eyes lit up and he said: "Sir, what's so interesting about the Mechanical Research Institute? That is, there are 10 researchers working on an automatic lifting device project, and there are 2 people working on a gear set research and development project, and my subordinates are waiting for more than 10 researchers.

There will be a double selection meeting for college graduates in the next month, and another batch of fresh graduates will be recruited.

Now there are only these two projects and there are only a few houses, so there is nothing to see.

Let's go to the conference room to discuss your guidance, my subordinates think this matter is more important."

Bi Sheng and Yan Qisheng also joined in, constantly urging Qu Mao to give up visiting the Mechanical Research Institute and instead go to the conference room to discuss the technology of the automatic lifting device.

Qu Mao spread his hands helplessly and said: "Actually, there is nothing to discuss. It is just a movable pulley and a fixed pulley, forming a pulley set to reduce the force required for lifting..."

"This is already very important, sir, hurry up!" Kong Ming had already inserted the goose feather fan into his belt and had his hands free to push Qu Mao to walk.

Qu Mao had no choice but to be surrounded by a group of researchers and enter the conference room on the second floor of a recent four-story reinforced concrete building. Kong Ming had already summoned all 12 researchers from the Mechanical Research Institute to the conference room.

Glancing at the blackboard in the conference room, Qu Mao had no choice but to pick up a piece of chalk and start his teaching activities.

Qu Mao himself knew little about it, so he could only draw a schematic diagram of the fixed pulley and the movable pulley, and briefly introduced the functions of the fixed pulley and the movable pulley, especially the content that the movable pulley can save half of the effort, which made Kong Ming and the researchers from the Unloading Research Institute see it.

One light.

After sketching out a few simple schematic diagrams, Qu Mao said: "Kong Ming, experts from the Mechanical Research Institute, I only remember that the pulley that moves with the weight we need to lift is called a movable pulley, and it hangs at the top or bottom.

The pulley is called a fixed pulley.

Each set of movable pulleys should be able to save half the force, but the movable pulleys must also be combined with the fixed pulleys, otherwise they will not move with the object we need to lift.

The specific operating mechanism requires you to conduct repeated experiments and verifications. You can study it first and then install it on the device currently being tested."

Kong Ming looked at the schematic diagram that Qu Mao drew on the blackboard in front of the conference room, and kept drawing in his notebook. He was indeed a talented person. Qu Mao talked for less than half an hour, and Kong Ming was writing and drawing in his notebook.

The speed is getting faster and faster.

Finally, before Qu Mao finished speaking, Kong Ming jumped up and said: "Sir, I may already know the principle, but further experiments are needed to verify it...

If this thing can be developed, we only need to set up a bayonet on each floor, and we can easily send people and goods to the floor we want.

With this device, adults no longer need to worry about climbing stairs."

Qu Mao smiled and said: "You should do it based on mechanical power first, and later we can study how to use steam power, internal combustion engine power or other power to replace human power.

Of course, Kong Ming, you don’t have to stay in the Mechanical Research Institute all the time. If you have time, you should go to various universities and pay attention to the teaching and research of electricity."

Kong Ming said: "Yes, sir! After my subordinates complete the automatic lifting device, they will supervise the electricity teaching activities in various universities."
Chapter completed!