"I'm going with you. ”

"Girl, stay at home. Liu Chi gently hugged Ye Yuxin 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 bother you." ”

"Then change your clothes quickly, don't wear skirts and high heels. Liu Chi looked at Ye Yuxin's firm eyes, and finally nodded.

"Hmm!"

“......”

Accelerated all the way, and half an hour later, Liu Chi and the two came to the company's laboratory.

"Girl, stay there, if it's okay, help me pay attention to the relevant news on the Internet and see if there is any emergency. Liu Chi said while playing on the computer.

"Hmm!"

"By the way, you ask your uncle, it's inconvenient to send a helicopter over, so that you can save a lot of time on the road. Liu Chi operated the computer and said without looking back.

"Okay!" Ye Yuxin took out her mobile phone from her bag, and walked out of the laboratory for fear of disturbing Liu Chi.

......

80,000 rpm?

Two valves, that's 160,000 turns.

If it is closed in two hours, it will take at least 1,333 laps in one minute, and with the force, the initial speed will be at least 1,500 laps or more.

With the hands of robots, that's impossible.

The best thing to do is to automate.

Liu Chi's mind moved, if the robot was holding a motor in his hand, the speed of 'turning in circles' would definitely meet the requirements.

As long as the electricity problem is solved, it is OK.

Now I have to calculate the output power, and how to ensure that it works normally at a high temperature of 2/300 degrees, and how to ensure the balance of the robot in the air, if it can be done, then there is no problem.

The formula for calculating the output power of the motor is: P≈TN/9549

T is the torque and N is the rotational speed.

The input power of the motor is calculated by the following formula: P=UIcosφ.

where U is the voltage, I is the current, and φ is the phase difference between the phase voltage and the phase current.

Therefore......

......

When the number of pole pairs is 2, the rotational speed of the rotating magnetic field is n=1500.

n=60f/p；

n - the speed of the motor (rpm); 60 - per minute (seconds); f - power supply frequency (Hezhi); p – the number of pole pairs of the rotating magnetic field of the motor.

The standard power supply frequency is specified as f = 50 cycles per second.

Due to the existence of the slip rate, the actual speed of the motor is slightly lower than the speed of the rotating magnetic field, in the frequency conversion speed regulation system, according to the formula n=60f/p;

Know......

Change the frequency f to change the speed and reduce the frequency ↓f, and the speed will become smaller:

That is, 60 f↓/ p = n↓ increases the frequency ↑f, and the rotational speed increases: i.e. 60 f↑/ p = n↑.

......

So that when P exceeds 12.8, then no problem!

Liu Chi instantly opened a folder on the computer screen.

The speed of the hand kept soaring.

Ten minutes later, Liu Chi took a USB flash drive and plugged it into the USB port of the computer.

Data in copy, please ...... later"

"Yu Xin helped me get a few A2 buckles. Liu Chi saw Ye Yuxin on the side and said directly.

"Okay!" Ye Yuxin replied and ran out of the laboratory.

......

Just when Liu Chi was busy working, a helicopter hovered directly over the industrial park.

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

"I don't know if the square below can withstand the strong winds of the helicopter. ”

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

"Uncle, are you here?"

"I'm over the industrial park. ”

"It's okay, you come down first, it's okay. Ye Yuxin naturally knew that Chen Luguang was afraid that the buildings in the square would not be able to stand the strong wind of the helicopter.

"Okay, then I'll go down. After Chen Luguang hung up the phone, he glanced at the square field below, said to the captain in his heart, and landed in the middle of the square.

“......”

"How is it, what did Liu Chi say?" After Chen Luguang got off the helicopter, he asked directly to Ye Yuxin, who came up.

"I don't know yet, he's still doing side tests. Ye Yuxin comforted after speaking: "Don't worry, I believe that Liu Chi can do it, uncle, you go to his office to rest for a while." ”

"Okay. Chen Luguang looked up at the brightly lit fourth floor and prayed: It will definitely work!

Ye Yuxin took Chen Luguang to Liu Chi's office, poured him a glass of water, and said, "Uncle, you wait here, I'll take a look at the laboratory." ”

"Good. ”

After more than ten minutes, Liu Chi walked down with a robot of nearly half a meter machine, and Ye Yuxin, who was holding a notebook, was behind.

"How?"

"The test should be fine, but you have to try it in the field. Liu Chi said directly: "Let's go, time is tight." ”

"Okay!" Chen Luguang stood up cleanly.

“......”

"You managed to come up with a robot in such a good time?" Chen Luguang said in surprise as he followed Liu Chi.

"What do you think, you and I are a god, this is something I made some time ago to verify a technology, and it just came in handy today. Liu Chi explained.

"What is this on the surface of the robot? So many patterns. Chen Luguang's curiosity was hung high.

"Confidential ......" Liu Chi handed the robot in his hand to Chen Luguang and said: "Help me take it, I want to make a call to the disaster area and ask them to prepare something for me." ”

"Okay!" Chen Luguang took the robot and looked at the patterns on the surface curiously, not to mention anything else, it looked very beautiful.

Well!!!

ALSO, IT'S A BIT HEAVY, ABOUT 20KG.

Liu Chi flipped through the call records, found the number that had just called Ang Li, and called out.

"Hey, Mr. Liu, is there a way?"

"It's no problem after testing, but I need to go to the field to try it out, you can prepare something for me, I'll use it later." ”

"Okay, good, great, what do you want me to prepare?" Commander Li finally heard the first good news, and he was so happy that he was almost speechless.

"Help me prepare a 'Advent 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 an hour in high temperature conditions, of course, the longer the better. ”

"THERE IS ALSO A SECTION OF HEAT-RESISTANT MATERIAL ABOUT 500MM LONG WELDED AT THE HEAD OF THE MACHINE, PREFERABLY WITH A MATERIAL WITH WEAK HEAT CONDUCTION, AND THE FRONT END IS MADE INTO A THREE-LEAF BUCKLE, WHICH I WANT TO PENETRATE INTO THE DISC THAT CLOSES THE VALVE. ”

"It's also important that the entire motor doesn't weigh more than 15 kilograms. ”

"If you have enough time, it's best to prepare two more, I'm afraid that the motor can't stand the temperature, so make two more as a backup. ”

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

"I'm going to take a helicopter from Yanjing now, and I'll arrive in about half an hour. ”

"Okay! Excuse me, Mr. Liu. Chen Luguang's heart let go of it.

“......”

"Girl, can you sit?" Liu Chi looked at the helicopter in front of him and looked at Ye Yuxin beside him a little worriedly.

"It's okay, I've sat there. After Ye Yuxin finished speaking, he walked directly to the helicopter in the middle of the square.

"Uh......"