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空气静压轴承是高精度轴承的发展方向之一。 文中阐述了高精度空气静压轴承的基本原理、设计特点和设计理论。将常用的孔式节流器的环形孔改进为倒角孔,通过气膜压力、轴承刚度等测量的结果表明:采用倒角孔节流器的轴承不仅能减小气体散流、非轴向流和负压的能量损失,而且在不改变轴承间隙和节流小孔孔径的条件下改变表压力比值,提高轴承的回转精度和刚度。 本文还介绍了高精度空气静压轴承的实验装置、制造方法,以及供气装置。
Air hydrostatic bearings is one of the development direction of high precision bearings. The paper describes the basic principles, design features and design theory of high precision air static pressure bearings. The commonly used orifice of the orifice to improve the chamfered hole, through the film pressure, bearing stiffness measurement results show that: the use of chamfered hole throttle bearing can not only reduce gas dispersion, non-axial Flow and negative pressure energy loss, and without changing the bearing clearance and throttle orifice aperture conditions to change the pressure gauge to improve the bearing slew accuracy and stiffness. This article also describes the experimental setup, manufacturing method, and air supply for high precision air hydrostatic bearings.