Patent ID: 9479035
Filing Date: 2016-10-25
CPC Classification: F04D,F16C,G01M,H02K,Y10T

Claim Text:
1. A method of rotor dynamic balancing for magnetic levitation molecular pump, wherein comprising steps of: step controlling a displacement detector through said controller of said magnetic levitation molecular pump so as to collect radial displacement signals of a rotor of said magnetic levitation molecular pump and to detect radial vibration amplitude of said rotor; and sequentially executing step applying a typical rotor dynamic balancing method to achieve a low-speed balancing, so as to ensure the radial vibration amplitude of said rotor not to exceed ½ of said protective clearance before the rotational speed of said rotor exceeds the rigid critical rotational speed thereof, if the maximum radial vibration amplitude of said rotor exceeds ½ of said protective clearance, and then sequentially executing step step determining if the rotational speed ω step obtaining the influence coefficient matrix T according to the aforesaid matrix equations, and obtaining the initial imbalance mass matrix [M1 M2] T =T −1 V 0 through substitution in the first matrix equation; step step