大扭矩螺旋作动器的设计与研究

For the establishment of new high-elastic coupling of the test platform to meet their high-torque requirements of small swing angle experiments, Based on ball screw transmission, a high-torque screw actuator which can transform directly the straight movement to rotation movement was designed, the output torque of up to 30kN • m, the output swing angle ±10°, frequency of 0~12Hz. The force converter model was build by Pro/E, then the flexible multi-body systems were simulated and analyzed by using ADAMS software, especially the spiral set output curve was emphatically analyzed, the curves of ball movement were also obtained. According to the principles of inertia and flexibility the model is equivalent, then use ANSYS software to simplify the model modal analysis, the first eight natural frequencies of the high-torque screw actuator were given, modal analysis results show that institutions have good dynamic characteristics.