As the core power component of mechanical equipment, the operation status of asynchronous spindle motor directly determines the production accuracy and efficiency. During long-term operation, pollutants such as dust, oil, and metal debris are prone to adhere to key parts of the motor, causing problems such as poor heat dissipation, decreased insulation, and even mechanical jamming. Therefore, scientifically carrying out cleaning work and implementing targeted operation recovery measures are key links to ensure the reliable operation of motors.
Before cleaning the motor, sufficient preparation work needs to be done, and the core is to build a safe working environment. Firstly, the main power supply and control circuit power supply of the motor must be cut off, and a "Do not close" sign must be hung to prevent safety accidents caused by misoperation. Secondly, it is necessary to disassemble the external protective components of the motor, such as dust covers, cooling fan covers, etc. During the disassembly process, make sure to mark the component numbers to avoid mismatches during reassembly. At the same time, suitable cleaning tools should be prepared, such as low-pressure compressed air spray guns, lint free cloths, specialized electrical cleaning agents, and lubricants, to ensure that the tools are dry and clean and avoid secondary pollution.
The cleaning process should be carried out according to the principle of "from outside to inside, cleaning dust first and then removing dirt". The focus of external cleaning is on the heat dissipation fins, fan blades, and junction boxes. Low pressure compressed air is used to blow in the opposite direction along the heat dissipation channel to remove surface dust accumulation; If there is oil stains attached, you can dip a small amount of neutral cleaner and gently wipe it, then dry it with a dry cloth. Internal cleaning requires careful operation. After disassembling the end cover, gently blow the surface of the stator winding with compressed air to avoid excessive airflow damaging the insulation layer; For stubborn stains in the winding gaps, specialized electrical cleaning agents can be sprayed and left to air dry naturally before further treatment. After cleaning the bearing parts, it is necessary to apply lubricating grease of the appropriate model in a timely manner, and the filling amount should be controlled at 1/3-1/2 of the internal space of the bearing.
After the cleaning is completed, the operation recovery measures need to be implemented step by step. Firstly, perform assembly reset and reassemble the components in the reverse order of disassembly, ensuring that the torque of each connecting bolt meets the technical requirements, the wiring inside the junction box is firm, and the insulation wrapping is intact. Subsequently, a pre inspection was conducted to measure the insulation resistance of the stator winding using a multimeter, ensuring that the value met the requirements of the equipment manual, and to investigate whether there was any jamming in the mechanical components. During the trial operation phase, start with no-load operation and monitor the motor speed, temperature rise, and noise indicators; After normal no-load operation, load to 50% and 75% of the rated load, gradually transition to the rated load, continuously observe various operating parameters, and confirm that there are no abnormalities before resuming normal operation.
It should be noted that during the cleaning and restoration process, direct rinsing of the motor body with water should be avoided, and the use of corrosive cleaning agents is prohibited. In addition, it is recommended to establish a regular cleaning mechanism and determine the cleaning cycle based on the dust concentration in the usage environment. Generally, cleaning should be done every 6 months in workshop environments, and in harsh environments, it should be shortened to within 3 months to reduce the risk of failure from the source.