How does the engraving machine judge the fault through the sound of the spindle motor?

    When the spindle motor is working, some noise is generated due to the rotational friction. The normal working spindle is relatively flat and there is not much noise. If the spindle motor is not working properly, the spindle must be repaired. Due to the high frequency operation of the spindle motor of the engraving machine for a long time, the spindle is prone to some noise when it is used improperly, but this is a difficulty for the customer to judge the specific problem of the spindle motor through voice. Today, Shenzhen Tiancheng Xinli (Resistant) Co., Ltd. will give you an analysis of the situation. What is the abnormal situation of the abnormal noise of the spindle motor? I hope that you can maintain your spindle in time.



1, 哒哒 sound: the frequency of the sound and the change of the rotational speed of the bearing components, the surface waviness is mainly due to noise. The solution is to improve the quality of the bearing raceway surface, reduce the ripple amplitude, reduce the damage, adjust the gap preload and fit, check the operation of the free end bearing, improve the accuracy of the shaft and the mounting method of the bearing housing.



2. Beep: The motor running without load is similar to the hum, the axial vibration of the motor is abnormal, and it is turned on or off when there is a click. The solution is often in the case of poor lubrication. The motor at both ends of the bearing in winter is mainly due to unstable vibration caused by axial vibration.



3. Impurity sound: caused by bearings or high-quality cleaning, emitting irregular abnormal sounds. Sometimes, when the sound is time, it is big and small. It often occurs on high speed motors. Solution: Choose a good grease, improve the cleanliness before injecting grease, strengthen the sealing performance of the bearing, and improve the cleanliness of the installation environment.



4. Vibrating sound: Due to the vibration and impact of the cage and the rolling element, no matter what kind of grease may occur, the radial clearance is easier when the load or torque is large. Solution: In order to improve the accuracy of the bearing, the clearance of the small bearing or the preload applied to the bearing, reduce the torque load, reduce the installation error, and choose a good fat.