schrittmotor, as an executive component, is one of the key products of mechatronics. It is widely used in various automatic control systems.With the development of microelectronics and computer technology, the demand of stepper motor is increasing day by day, and it has been applied in various fields of national economy.The main disadvantages are:
The vibration and noise of the stepping motor at low speed are its inherent disadvantages, which can be generally overcome by the following schemes:
A. If the stepper motor happens to work in the resonance region, it can avoid the resonance region by changing the deceleration ratio and other mechanical drives;
B. Use the drive with subdivision function, which is the most commonly used and easiest method;
C. Stepper motors with a smaller distance Angle, such as three-phase or five-phase stepper motors;
D. Switching to ac servo motor can almost completely overcome vibration and noise, but the cost is higher;
E. Add a magnetic damper to the motor shaft. Such a product is available on the market, but the mechanical structure changes greatly.
The subdivision technology of stepping motor is essentially an electronic damping technology (please refer to the relevant literature). Its main purpose is to reduce or eliminate the low-frequency vibration of stepping motor, and improving the running accuracy of the motor is only an ancillary function of the subdivision technology.
