Abstract
In order to solve the problem of friction loss and high heat generation in the traditional bearing structure of the multi-DOF motor, an air-floating multi-DOF motor (AMM) was proposed. The motor adopts gas static pressure ball bearing instead of the traditional bearing. When the motor runs, the high pressure gas supports the rotor to suspend, realizes the frictionless movement, can effectively reduce the friction loss, greatly improves the output precision of the motor. The influence of different parameters on bearing capacity, air consumption and static stiffness of bearing is analyzed by analytical method. The results show that the number of orifice and the wrap angle have direct influence on the performance of aerostatic ball bearing, and the optimal distribution angle of air hole is 32°. It provides a reference for the application of AMM.
Published Version
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