一种考虑不平衡磁拉力的磁悬浮高速转子现场动平衡方法及系统
By establishing a simplified model and implementing automatic centering control in a magnetically levitated molecular pump, calculating the unbalanced magnetic pull and performing current compensation, the problem of insufficient accuracy of traditional dynamic balancing instruments is solved, achieving efficient and accurate dynamic balancing results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIHANG UNIV
- Filing Date
- 2024-11-20
- Publication Date
- 2026-07-17
AI Technical Summary
Existing field dynamic balancing instruments cannot accurately measure the unbalanced response of magnetic levitation molecular pumps. Traditional methods are inaccurate in correcting mass at low speeds, affecting the dynamic balancing effect at high speeds. Furthermore, the sensor installation requirements cannot be met, resulting in insufficient dynamic balancing accuracy.
Based on a simplified model of a magnetic levitation bearing-rotor, under automatic centering control mode, the unbalanced magnetic pull force and compensation current are calculated by running the magnetic levitation rotor at different speeds to correct the rotor mass and improve the dynamic balance accuracy.
No additional sensors or trial weights are required, reducing costs and improving the dynamic balance accuracy and efficiency of the magnetic levitation molecular pump, ensuring stable operation at high speeds.
Smart Images
Figure CN119394513B_ABST