数控转台液体静压轴承承载能力研究  

Research on Load Capacity of Hydrostatic Bearing for CNC Rotary Table

作　　者：魏伟 郭智春 WEI Wei;GUO Zhi-chun(China Academy of Machinery Science&Technology Qingdao Branch Co.,Lid.,Qingdao 266300,China)

机构地区：[1]中国机械总院集团青岛分院有限公司,山东青岛266300

出　　处：《机械工程与自动化》2023年第3期34-36,共3页Mechanical Engineering & Automation

摘　　要：分析了数控转台液体静压轴承的基本结构、工作原理、有效承载面积和液阻,推导了数控转台液体静压轴承在毛细管节流、PM流量控制节流、恒流量多头泵供油方式下的承载能力和刚度的计算公式。结合实例,定量分析等初始供油量、等平均刚度、变初始油膜间隙下,毛细管节流、PM流量控制节流、恒流量多头泵供油时,油膜间隙对轴承承载性能和刚度的影响,为液体静压转台设计和研究提供了依据。The structure,working principle,effective area and liquid resistance of the hydrostatic bearing for CNC rotary table are analyzed.The formulas for calculating of bearing capacity and stiffness of hydrostatic bearing for CNC rotary table under capillary throttling,PM flow control throttling,oil supply mode of constant flow multi-head pump are derived.Combined with an example,the influence of oil film clearance on load-bearing performance and stiffness is quantitatively analyzed under the conditions of equal initial fuel supply,equal average stiffness,variable initial oil film clearance,capillary throttle,PM flow control throttle,constant flow multi-head pump fuel supply,which provides an analytical basis for the design and research of hydrostatic rotary table.

关 键 词：液体静压轴承 PM流量控制器 毛细管节流 数控转台 轴承承载能力 

分 类 号：TH133[机械工程—机械制造及自动化]