Corn processing machinery is mainly equipment for processing and producing corn. During use, due to the rotation of the motor, the corn kernels are ground into powder. For some problems, the staff should find out where the noise comes out in time, solve these problems, let the work go smoothly, and avoid causing bigger problems.
Generally speaking, there are several detection methods for noise in the production of corn processing machinery:
1. The windshield of the corn processing machinery makes abnormal noises, which has a lot to do with the compliance of the windshield, because the welding points are rough during the processing of the corn processing machinery, the edge of the windshield is inconsistent, and the assembly is often inconsistent with the rotor. caused by friction at the ends.
2. Electromagnetic sound. Divided into high frequency and low frequency. It may be caused by the poor conformity of the chute of the shaft iron core, the inner bore of the iron core is not smooth, and the processing of the outer diameter of the rotor is inconsistent. Usually, the method of changing the rotor is used to eliminate and solve such problems.
3. There will also be high and low and heavy sounds when the motor is running. The possible reasons are as follows:
1) The air gap between the stator and the rotor is not uniform. At this time, the sound fluctuates from high to low and the interval between high and low sounds remains unchanged. This is caused by the wear of the bearing and the non-concentricity of the stator and the rotor.
2) The three-phase current is unbalanced. This is due to misgrounding, short circuit or poor contact of the three-phase windings. If the sound is dull, it means that the motor is seriously overloaded or running with a lack of phase.
3) The iron core is loose. During the operation of the motor, the fixing bolts of the iron core are loosened due to vibration, resulting in the loosening of the silicon steel sheet of the iron core and making noise.
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