Planetary motor in operation will cause certain noise, it is very natural, but some of the reduction motor noise is very large, some is very small. How did it come about? Let's discuss the causes of the noise of the lower planetary reducer motor.

When the reducer motor is running, the rolling bearing will vibrate, and the double shaft gear reducer will vibrate with the raw materials of the small components of the motor. The axial vibration of the rotor will be caused by the elastic parameter of the axial steam body of the rolling bearing. For example, if the humidity is not very good, it will cause friction sound, especially for large, medium and small planetary reducer motors.

If appear fricative sound, wet bad meeting is more serious. How to reduce the noise?

Electromagnetic induced noise of Micromotor: after the micromotor is plugged in, the magnetic field acts on the motor rotor and the rotor transformer coil, resulting in the fundamental magnetic potential and a series of harmonic magnetic potential. The fundamental magnetic potential leads to the electromagnetic induction torque and the harmonic magnetic field interact with each other, resulting in the axial force varying with time and space. This kind of shaft diameter is mainly on the transformer core. The axial force caused by low magnetic harmonic is very large, which makes the iron core of transformer reducer model size cause periodic vibration in the shaft diameter. It is an important direct cause of electromagnetic induction noise. Therefore, suppressing the low harmonic component of small gear reducer can effectively reduce the electromagnetic induction noise. Reduce the exhaust pipe noise: the exhaust pipe noise level is high, the exhaust pipe speed is faster, and the treatment is difficult.

According to the experimental results, the exhaust pipe noise can be reduced by 40-60db (a) by using the special characteristic impedance composite muffler. Of course, it refers to large, medium and small planetary motor, micro motor does not have this kind of noise.