Maintenance points and scenario adaptation for typical industrial machinery

1. Fluid machinery (fans, pumps)

   Core Risks: Insulation deterioration due to humid environment, bearing fatigue due to frequent starts and stops.

   Customized maintenance program:

       Waterproof and moisture-proof: Monthly insulation resistance test (≥1MΩ), humid environment with moisture-proof heating tape.

       Bearing strengthening: replenish lithium grease every 1500 hours to avoid dry friction under high speed operation.

       Frequency converter synergy: install frequency converter to reduce the impact of start and stop, and stabilize the load rate at 60%-90% high efficiency zone.

2. Material conveying equipment (belt conveyor, screw feeder)

   Core risks: Dust blocking heat dissipation channels, bearing wear on one side due to partial load operation.

   Customized maintenance program:

       Heat dissipation optimization: Clean the motor heat sink and air duct every week, and use IP55 protection type YE3 motor for dusty environment.

       Alignment calibration: check the coupling alignment deviation (≤0.05mm) every month, adjust to 3%-5% sag when the belt tension is too tight.

       Load monitoring: install current sensors to monitor the three-phase current balance in real time (deviation ≤5%).

3. Heavy load equipment (crusher, hydraulic press)

   Core risks: Shock load triggers rotor bar breakage, and vibration overruns lead to winding loosening.

   Customized maintenance program:

       Anti-vibration design: rubber damping pads are added to the base, and 6/8 very low-speed YE3 motors are selected to improve the starting torque.

       Winding reinforcement: Quarterly inspection of winding end ties, high temperature scenarios using class F insulation materials.

       Oil protection: chemical environment using sealed bearings to prevent the lubricant from being contaminated by corrosive gases.

4. High-precision equipment (CNC machine tools, centrifuges)

   Core risks: vibration affects machining accuracy, temperature rise fluctuations lead to thermal deformation

   Customized maintenance program:

       Dynamic balance correction: Rotor dynamic balance test every six months, residual unevenness ≤ 2.5g-mm/kg.

       Temperature control enhancement: built-in PT100 temperature sensor, set 75℃ automatic alarm.

       Frequency converter maintenance: clean up the frequency converter heat dissipation filter every quarter to avoid the accumulation of dust affecting heat dissipation.