摘要
单轴气浮台气体轴承由止推轴承和轴颈轴承组成,轴颈轴承虽没有负载要求,但要求具有较高的气膜刚度和一定的径向抗干扰力。对气浮台轴颈轴承按最大刚度准则进行抗干扰设计,表明轴颈轴承采用2个短轴承比长轴承更能提高刚度和抗干扰力。分析轴承供气孔位置、气膜间隙、供气孔数以及供气孔直径对轴承静态特性的影响,确定轴承的最佳参数以获得较大的气膜刚度和良好的静压稳定性。对设计的轴颈轴承进行径向抗干扰力校核,保证了气浮台具有良好的工作性能。
The gas journal bearing of single-axis air-bearing platform is composed of thrust bearing and journal bearing. The journal bearing is required to have high gas film stiffness and radial interference resistance capability though there＆#39;s no load requirement.The interference resistance design of the gas journal bearing of single-axis air-bearing platform was per-formed by means of maximum static stiffness criteria.The result shows that the stiffness and interference resistance capabil-ity is improved by using two short connective gas journal bearings compared with one long bearing.The influence of hole position,gas film thickness,hole number and hole diameter on bearing＆#39;s static characteristics were discussed.The optimal parameters of the bearing were determined to obtain a larger gas film stiffness and good static stability.The radial interfer-ence resistance capability of the designed bearing was checked,showing that the air floated platform has good working performance.
出处
《润滑与密封》
CAS
CSCD
北大核心
2014年第3期115-119,共5页
Lubrication Engineering
关键词
气浮台
轴颈空气轴承
抗干扰
静态特性
air-bearing platform
gas journal bearing
anti-interference
static performance
