"Girl, please stay at home and stay well." Liu Chi gently hugged Ye Yuxin and said, "I will be back soon, and I will pay attention to safety."
"No..." Ye Yuxin was surprisingly stubborn at this time: "Don't worry, I won't disturb you."
"Then change your clothes quickly, don't wear a skirt and high heels."
"Um!"
"..."
Accelerating all the way, Liu Chi and the two arrived at the company's laboratory half an hour later.
"Girl, stay here. If nothing happens, help me pay attention to the relevant news on the Internet to see if there are any emergencies." Liu Chi said while playing on the computer.
"Um!"
"By the way, ask your uncle if it's convenient to send a helicopter over. This can save a lot of time on the road." Liu Chi said without looking back while operating the computer.
"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 turned off for two hours, it will take at least 1333 turns per minute. Adding the force, the initial speed will be at least 1500 turns.
With robotic hands, that's impossible.
The best way is to automate.
Liu Chi thought. If the robot held a motor in its hand, then the speed of 'turning in circles' would definitely meet the requirements.
Now I have to calculate the output power, and how to ensure normal operation at a high temperature of 2/300 degrees, and ensure the balance of the robot in the air. If it can be done, then there will be no problem.
The motor output power calculation formula is: p≈tn/9549
t is torque and n is rotation speed.
The input power calculation formula of the motor is: 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 rotation speed of the rotating magnetic field is n=1500.
n=60f/p;
n——the speed of the motor (rev/min); 60——per minute (second); f——power frequency (Hertz); p——the number of pole pairs of the motor’s rotating magnetic field.
The stipulated standard power frequency is f=50 cycles/second.
Due to the existence of slip, the actual speed of the motor is slightly lower than the speed of the rotating magnetic field. In the variable frequency speed regulation system, according to the formula n=60f/p;
It can be seen...
Changing the frequency f can change the rotational speed. Lower the frequency ↓f, and the rotational speed will become smaller:
That is, 60 f↓/ p = n↓. Increase the frequency ↑f, and the speed will increase: 60 f↑/ p = n↑.
...
It follows that when p exceeds 12.8, then there is no problem!
Liu Chi instantly opened a folder on the computer screen.
His hand speed kept soaring.
Ten minutes later, Liu Chi took a USB flash drive and inserted it into the USB port of the computer.
"Data is being copied, please wait..."
"Yuxin, help me get some A2 size buckles." Liu Chi saw Ye Yuxin beside him and said directly.
"Okay!" Ye Yuxin responded and ran out of the laboratory.
...
While Liu Chi was busy, a helicopter hovered directly over the industrial park.
"Can we land?" Chen Luguang, who was on the plane, looked around and finally asked the captain with a speechless expression.
"I don't know if the square below can withstand the strong wind from the helicopter."
"I'll make a call first." After Chen Luguang said that, he took out his mobile phone from his pocket, found Liu Chi's number, and was about to press the dial button, but after thinking about it, he backed out and found Ye Yuxin's phone number.
"Uncle? Are you here?"
"I'm above your 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 withstand the strong wind from the helicopter.
"Okay, I'll get off then." After Chen Lvguang hung up the phone, he glanced at the square below, and said to the captain in his heart, then he landed in the middle of the square.
"..."
"How's it going? What did Liu Chi say?" Chen Lvguang asked Ye Yuxin directly after getting off the helicopter.
"I don't know yet. He is still doing a side test." After speaking, Ye Yuxin comforted: "Don't worry, I believe Liu Chi can do it. Uncle, please 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 brought Chen Luguang to Liu Chi's office, poured him a glass of water and said, "Uncle, please wait here while I go to the laboratory to take a look."
"good."
After more than ten minutes, Liu Chi walked down with a robot that was nearly half a meter tall, followed by Ye Yuxin who was holding a notebook.
"How about it?"
"The test should be fine, but you have to go to the site to try it." Liu Chi said directly: "Let's go, time is tight."
"Okay!" Chen Luguang stood up neatly.
"..."
"How long did it take you to create a robot?" Chen Luguang asked in surprise as he followed Liu Chi.
"What are you thinking? You think I am a god. I made this 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? There are so many patterns." Chen Lvguang was very curious.
"Confidential..." Liu Chi handed the robot to Chen Luguang and said, "Get it for me. I want to make a phone call to the disaster area and ask them to prepare something for me."
"Okay!" Chen Lvguang took the robot and curiously looked at the patterns on the surface. If nothing else, it looked quite beautiful.
Um!!!
It's also a bit heavy, about 20kg.
Liu Chi opened the call history, found the number that Li An had just called, and called out.
"Hello, Mr. Liu? Is there anything you can do?"
"It's no problem after testing, but I need to go to the site to try it out. Please help me prepare something. I'll need it later."
"Okay, okay, great, what do you want me to prepare?" Commander Li finally heard the first good news in this moment, and he was so happy that he couldn't care less about words.
"Help me prepare an 'Anhong brand SS-500' motor, and help me wrap the entire 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 better.
."
"There is also a piece of heat-resistant material about 500mm long that is welded to the head of the movement. It is best to have weak heat conduction. The front end is made into a three-leaf buckle. I want to penetrate it into the disc that closes the valve."
"Another important point is that the weight of the entire motor cannot exceed 15 kilograms."
"If you have enough time, it's best to prepare two more. I'm afraid the motor won't be able to withstand the temperature, so I'll make two more as backup."
"Understood, I'll have someone make arrangements right away."
"I'm starting from Yanjing now and taking a helicopter there. I'll arrive in about half an hour."
"Okay! Please excuse me, Mr. Liu." Chen Luguang felt relieved.
"..."
"Girl, can you sit down?" Liu Chi looked at the helicopter in front of him and looked at Ye Yuxin beside him with a little worry.
"It's okay, I've been on it before." Ye Yuxin said and walked directly to the helicopter in the middle of the square.