Research On Dynamic Balancing Calibration System And Process Of Gyro Rotor

Compared with other gyroscopes,the dynamic tuning gyroscope has the advantages of simple structure,small size,light weight,low cost,high precision and reliability,low power consumption and long service life,therefore,it is widely used in the inertial navigation system of the aircraft,ships,aerospace and various advanced weapon systems.As the key component of the dynamically tuned gyroscope,the dynamic balance of the rotor is an important guarantee for the accuracy of the gyroscope.At present,due to the size of the gyroscope rotor and the limitation of the assembly process,the dynamic balance of the gyro rotor is mainly controlled by manual adjustment.The efficiency and accuracy of the adjustment are mainly based on the experience of the workers and the efficiency is low.In order to improve the precision of the dynamic tuning gyro and improve the efficiency of the dynamic balance of the rotor,it is very necessary to design and develop a dynamic balancing system for gyro rotor.The system mainly includes the following parts: gyro clamping module,rotor position measurement module,rotor dynamic balance correction module,machine vision module and industrial computer.The main function of the gyro clamping module is to fix the gyroscope in the adjustment process,and to adjust the screw hole and the adjusting screw at the same height.In order to eliminate the inaccuracy caused by the rotation of the rotor,a pneumatic clamping device is added.The rotor measurement module can effectively measure the actual displacement of the rotor.The rotor adjustment module is mainly used to adjust the screw to achieve the rotor movement,machine vision module to achieve the adjustment of the automatic alignment of the threaded hole.Based on the LabVIEW graphical programming language,the control program of the rotor center of gravity adjustment device is programmed to realize the real-time communication between the modules.During the adjustment process,the friction between the rotor and the bearing surface is found to be large,so the phenomenon of rotor creep is obvious,through the establishment of the two element oscillator model of the whole system,the dynamic expression is derived,and the main factors affecting the rotor creep are obtained.In order to get the influence of the main factors on the crawling phenomenon,the whole simulation system is simulated by Adams software.The experiment results show that the simulation results are correct and the crawling phenomenon can be effectively reduced during the adjustment process.Through the above improvement,the device can realize the precise position of the center of gravity of the gyro rotor,and the adjustment precision can reach 0.5 ?m,which can meet the requirement of adjustment,and the adjustment efficiency is obviously higher than that of manual adjustment,and the generation of the screw in the manual adjustment process is avoided,the pollution to the gyroscope is reduced,and the design requirements are satisfied.