Chapter 142

"I'm going with you."

"Girl, you stay at home." Liu Chi gently hugged the next leaf and said, "I'll be back soon. I'll pay attention to safety."

"No..." at this time, ye Yuxin was surprisingly stubborn: "don't worry, I won't disturb you."

"Then change your clothes and don't wear skirts and high heels."

"Yes!"

“......”

They accelerated all the way. Half an hour later, Liu Chi and his colleagues came to the company's laboratory.

"Girl, you stay. If you have nothing to do, help me pay attention to the relevant online news to see if there is any emergency." Liu Chi said while playing computer.

"Yes!"

"By the way, ask your uncle if it's convenient for Fang to send a helicopter, which can save a lot of time on the road." Liu Chi operated the computer without looking back.

"Good!" Ye Yuxin took out her mobile phone from her bag. Afraid of disturbing Liu Chi, she went out of the laboratory.

......

80000 revolutions?

Two valves, 160000 turns.

If it is closed for two hours, it will take at least 1333 revolutions a minute. With the force, the initial speed will be at least 1500 revolutions.

With the robot's hand, that's impossible.

The best way is automation.

Liu Chi's brain moved. If the robot held a motor in his hand, the speed of "turning around" would definitely meet the requirements.

Now I have to calculate the output power and how to ensure the normal operation at 2300 degrees and the balance of the robot in the air. If it works, there will be no problem.

The calculation formula of motor output power is: P ≈ tn9549

T is torque and N is speed.

The input power calculation formula of the motor is: P = uicos φ。

Where u is voltage, I is current φ Is the phase difference between phase voltage and phase current.

So

......

When the number of poles is 2, the rotating speed of the rotating magnetic field n = 1500.

n=60fp；

N - motor speed (RPM); 60 - every minute (second); F - power frequency (Hertz); P -- pole pairs of rotating magnetic field of motor.

The specified standard power frequency is f = 50 cycle seconds.

Due to the existence of slip, the actual speed of the motor is slightly lower than that of the rotating magnetic field. In the variable frequency speed regulation system, according to the formula n = 60fp;

You know

Change the frequency f to change the speed. Reduce the frequency ↓ f to reduce the speed:

I.e. 60F ↓ P = n ↓ increasing the frequency ↑ f will increase the speed: i.e. 60F ↑ P = n ↑.

......

So when p exceeds 12.8, it's no problem!

Liu Chi instantly opened a folder on the computer screen.

The hand speed kept soaring.

Ten minutes later, Liu Chi wanted to plug a USB stick into the USB socket of the computer.

Data in copy, please wait

"Yuxin, help me get some A2 cards." Liu Chi saw Ye Yuxin on the side and said directly.

"Good!" Ye Yuxin answered and ran out of the laboratory.

......

While Liu Chi was busy, a helicopter hovered directly over the industrial park.

"Can you land?" Chen Luguang looked around and asked the captain with a speechless face.

"I don't know if I can stand the strong wind of the helicopter in the square below."

"I'll make a call first." Chen Luguang then took out his mobile phone from his pocket, turned out Liu Chi's number and was ready to press the dial key, but after thinking about it, he withdrew and turned out Ye Yuxin's phone number.

"Uncle? Are you here? "

"I'm over your industrial park."

"It's all right. You come down first. It doesn't matter." Ye Yuxin naturally knows that Chen Luguang is afraid that the buildings in the square can't stand the strong wind of helicopters.

"OK, I'll go down." After Chen Luguang hung up the phone, he glanced at the square field below his eyes. His heart crossed the captain's way and landed in the middle of the square.

“......”

"Well, what did Liu Chi say?" After getting off the helicopter, Chen Luguang asked Ye Yuxin urgently.

"I don't know yet. He's still doing a side test." Ye Yuxin said comfortingly, "don't worry, I believe Liu Chi can do it. Uncle, you go to his office to have a rest first."

"OK." Chen Luguang looked up at the bright fourth floor and prayed: it will work!

Ye Yuxin took Chen Luguang to Liu Chi's office, poured him a glass of water and said, "uncle, wait here. I'll go to the laboratory."

"OK."

More than ten minutes later, Liu Chi came down with a nearly half meter machine, followed by Ye Yuxin with a notebook.

"How's it going?"

"There should be no problem with the test, but try it on the spot." Liu Chi said directly, "let's go. Time is tight."

"Good!" Chen Luguang stood up neatly.

“......”

"Did you get a robot in such a long time?" Chen Luguang followed Liu Chi in surprise.

"What do you think? You think I'm God. I made it some time ago to verify a technology. It's just in use today." Liu Chi explained

"Robot surface what is this? So many patterns. " Chen Luguang's curiosity was hung high.

"Keep it secret..." Liu Chi handed the robot in his hand to Chen Luguang and said, "help me take it down. I want to call the disaster area and ask them to prepare something for me."

"Good!" Chen Luguang took over the robot and looked curiously at the patterns on the surface. Without saying anything else, it looked very beautiful.

Well!!!

And it's a little heavy, about 20kg.

Liu Chi opened the call records, found the number of Ang Lee who had just called and called out.

"Hello, Mr. Liu? How about it? Is there any way? "

"After the test, it's no problem, but I need to go to the site to try. You help me prepare something for me. I'll use it later."

"Okay, okay, great, what do you want me to prepare, you say?" Commander Li will finally hear the first good news. He is a little happy.

"Help me prepare a 'Anhong brand model is ss-500' motor, and help me wrap the whole motor with high heat-resistant materials to ensure that the motor can work for more than one hour under high temperature. Of course, the longer the time, the better."

"There is also a section of heat-resistant material about 500mm long welded at the head of the machine core. It is best to make a three leaf buckle at the front end. I want to wear it into the disc that closes the valve."

"Another point is very important. The weight of the whole motor cannot exceed 15kg."

"If you have enough time, you'd better prepare two more. I'm afraid the motor can't stand the temperature, so I'll make two more as standby."

"Yes, I'll have someone arrange it right away."

"I'm starting from Yanjing now and going by helicopter. I'll arrive in about half an hour."

"Good! Please Mr. Liu. " Chen Luguang let go of his heart.

“......”

"Girl, can you sit down?" Liu Chi looked at the helicopter in front of him and looked at Ye Yuxin around him with a little worry.

"It's all right. I've sat down." Ye Yuxin said and walked directly to the helicopter in the middle of the square.

"Er..."