Chapter 142 (1/2)
”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.
......