The vibration motor is equipped with a set of adjustable eccentric blocks at both ends of the rotor shaft, and the excitation force is obtained by the centrifugal force generated by the high-speed rotation of the shaft and the eccentric block. The vibration frequency range of the vibrating motor is large, and the mechanical noise can be reduced only when the excitation force and power are properly matched. There are six classifications of vibration motors according to the starting and operating mode and the operating speed.
Ordinary motor commonly known as “motor” refers to an electromagnetic device that realizes the conversion or transmission of electric energy according to the law of electromagnetic induction. The motor is represented by the letter M in the circuit (the old standard is D). Its main function is to generate driving torque. As the power source for electrical appliances or various machinery, the generator is represented by the letter G in the circuit. Its main function is The role is to convert mechanical energy into electrical energy.
What is the difference between a vibration motor and an ordinary motor?
The internal structure of the vibration motor is the same as that of an ordinary motor. The main difference is that the vibration motor is equipped with a set of adjustable eccentric blocks at both ends of the rotor shaft, and the excitation force is obtained by the centrifugal force generated by the high-speed rotation of the shaft and the eccentric block. Vibration motors require reliable anti-vibration capabilities in mechanical and electrical aspects than ordinary motors. The rotor shaft of a vibration motor of the same power level is much thicker than that of an ordinary motor of the same level.
In fact, when the vibration motor is produced, the matching clearance between the shaft and the bearing is different from that of the ordinary motor. The shaft and the bearing of the ordinary motor must be closely matched, and the matching clearance between the shaft and the bearing in the vibration motor is a sliding fit. There is a gap of 0.01-0.015mm. Of course, you will feel that the shaft will move left and right during maintenance. In fact, this clearance fit has its important role.
Post time: Aug-24-2020