When repairing the rotating system of the horizontal screw centrifuge, firstly, the assembled rotor is directly loaded with the dynamic balance tester, and the dynamic balance check method of directly balancing the inner rotor with the single balance is realized in the whole and the whole rotor is directly balanced. More than 30 practice, a success rate of 95%. During the verification process, once the spot is found to go out of the narrow or other chaotic trajectory (after practice, the probability of occurrence is only 3%), this is caused by severe deformation of the rotor, excessive transmission of the transmission parts and loosening of some fasteners. .
The spot trajectory, the possibility of losing the dynamic balance check due to the inability to measure the magnitude and phase of the screw unbalance, at this time. Only replace the damaged part method until the approximate circular spot trajectory appears. The method of this paper is applicable to the dynamic balance of medium-speed rigid composite rotors with damage repair. For medium speed composite rotors. When designing the structure, it is recommended to design a process hole that can directly balance the inner rotor with the balance.
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