The flour machine has been used for a long time, and some problems are inevitable. So, what should I do if the flour mill makes noise? Let's take a look at our detailed introduction.
One is the abnormal noise from the windshield of the noodle machine, which has a lot to do with the compliance of the windshield. It is caused by rough welding points, inconsistent edges of the small mouth of the windshield during flour processing, and friction between the assembly and the end of the rotor.
The second is electromagnetic sound. It is divided into high frequency and low frequency. The inconsistency of the oblique groove at the position of the shaft iron core is not good. Not only the inner hole of the iron core, but also the inconsistency of the outer diameter of the rotor is the cause of the shaft eccentricity. Usually, this type of problem is eliminated and solved by replacing the rotor.
The third is that the motor makes a high and low, heavy sound. reasons may be:
1. The air gap between the stator and the rotor is uneven. At this time, the sound fluctuates high and low, and the interval between the high and low frequencies remains unchanged. This is caused by the bearing wear that makes the stator and the rotor different from each other.
2. Three-phase current is unbalanced. This is due to the faulty grounding, short circuit or poor contact of the three-phase winding. If the sound is dull, it means that the motor is seriously overloaded or out of phase.
3. The iron core is loose. During the operation of the motor, the iron core fixing bolts are loosened due to vibration, resulting in the loosening of the iron core silicon steel sheet, resulting in noise.
4. If there is an uneven collision sound, it may be caused by the collision between the fan blade and the fan cover.