The main difference is that the rotor of such an electric motor can turn at a given angle, thanks to the supply of electric current to one of the windings. The device belongs to the class of brushless, the absence of classic brushes allows you to achieve maximum reliability. On the website https://grizlicnc.com.ua/nema34 you can find various models of modern stepper motors with universal characteristics and choose the right one.
How it works
Despite the relatively wide variety of stepper motors, the principle of operation is the same for them. Applying electricity to one or two windings causes the rotor to move through a certain angle. The change in the windings involved in the work continues the movement of the rotor until it returns to its original position. The advantages of this approach are:
1. The rotor always turns at a strictly defined angle.
2. Very long service life, sometimes exceeding the service life of the machine.
3. Actively replaces the obsolete servo type.
4. Not prone to fail due to fluctuations in electric current.
5. Relatively simple design that can be repaired.
Important: the relative disadvantages of a stepper motor include increased vibration during continuous rotation without stopping. It requires a lot of energy, regardless of the intensity of work, or lack of it.
Applications
The virtues of the drive have made it very widespread since its invention in 1830. The main factor was the high reliability and positioning accuracy of the drive shaft. The main areas of operation, at the moment, are the following areas:
- tape reader and puncher;
- drive for reading optical media;
- most hard drives for storing computer memory;
- CNC milling machines and drawing machines;
- additional devices of industrial computers.
Two-phase stepper motors are most widely used in mechanical engineering. They have the necessary technical and operational characteristics required for production.
