Research on Novel Electromagnetic Automatic Balancing System for High-end Mechanical Equipment

Online automatic balancing system is one of the important research fields to achieve bionic artificial self-recouery and autonomous health of equipment represented by high-end machine tools and aero-engines because it can be used to suppress unbalanced vibration during the operation of equipment in real time. The developed novel electromagnetic automatic balancing system inherits the advantages of fast balancing speed of existing actuators and signal without dynamic transmission, etc., and improves the driving efficiency of the actuator working process effectively by combined permanent magnet-electromagnetic drive,and the simulation analysis results show that the method can effectively improve the actuator driving efficiency by more than 20%;Focusing on measurement and control methods for this new balancing system, quantitative optimization of key parameters such as reverse electric potential in the measurement and control circuit are done through simulation analysis. Finally, the validity and reliability of the system are verified through simulation tests on the test bench and field tests on actual machine tools. Field experimental results show that the system can reduce the unbalanced vibration of the machine tool from 6.8 μm to 0.7 μm within 20seconds, effectively improving the surface quality of the processed workpiece.