期刊文献+

超精密锥形液体静压转台节流器孔径和轴承间隙对其刚度影响的研究 被引量:3

Effect of orifice diameter and bearing clearance on stiffness of ultra-precision conical hydrostatic rotary table
下载PDF
导出
摘要 液体静压转台因为其高刚度、高精度等优良性能在超精密机床中得到了广泛应用,其节流器孔径和轴承间隙参数的选择是其性能提升的关键因素。为了进一步研究两种参数对转台刚度的影响,设计了一种可以改变这些参数的小孔节流锥形液体静压转台,使用流体仿真的方法对其刚度进行计算研究并开展了验证实验。首先,介绍了锥形液体静压转台的结构形式,并对转台的性能进行了理论计算和分析;接着,在Fluent软件中仿真计算并总结了节流器孔径和轴承间隙对液体静压转台刚度的影响规律;最后,制备了液体静压转台实物,测量了其轴向和径向刚度,与仿真计算得到的结果在变化趋势上具有良好的一致性,证明了仿真模型的可靠性,对于液体静压转台的设计与刚度提升具有重要意义。 Hydrostatic rotary table has been widely used in ultra-precision machine tools because of its excellent performance of high stiffness and high precision,which can be improved by selecting parameters of orifice diameter and bearing clearance.In order to further study the influence of the two parameters,an orifice compensated conical hydrostatic rotary table with orifice diameter and bearing clearance can be changed was designed.The stiffness of the rotary table was calculated by using fluid simulation method and validation experiments were then carried out.Firstly,the structure of conical hydrostatic rotary table was introduced,and the performance of it was theoretically calculated and analyzed.Then,the influence of orifice diameter and bearing clearance on the stiffness of hydrostatic rotary table was simulated and summarized in Fluent software.Finally,the rotary table was produced,and its axial and radial stiffness were measured,which were in good agreement with the simulation results,the reliability of the simulation model was proved.It is of great significance to the design and stiffness improvement of hydrostatic rotary table.
作者 张瑞涛 李增强 袁梓馨 刘长在 孙涛 ZHANG Ruitao;LI Zengqiang;YUAN Zixin;LIU Changzai;SUN Tao(Center for Precision Engineering,Harbin Institute of Technology,Harbin 150001,CHN;Chang Guang Satellite Technology Co.,Ltd.,Changchun 130000,CHN)
出处 《制造技术与机床》 北大核心 2022年第10期119-126,共8页 Manufacturing Technology & Machine Tool
关键词 小孔节流 锥形液体静压转台 仿真计算 刚度提升 orifice compensated conical hydrostatic rotary table simulation calculation stiffness improvement
  • 相关文献

同被引文献36

引证文献3

二级引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部