CAJ | 학술논문

针对一端固定、一端支承的滚珠丝杠上工作螺母的两种不同安装方式，分析、比较了丝杠受力状态的差异；通过建立计及接触角变化的滚珠丝杠载荷分布模型，定量研究了不同螺母安装方式对钢球法向载荷分布和实际接触角的影响规律。数值分析结果表明在螺母和工作台的连接法兰远离固定端的安装方式下，钢球载荷分布和接触角分布均更为均衡。另外螺母安装方式对滚珠丝杠轴向刚度的影响并不显著。这一结论为滚珠丝杠的安装和维护提供了理论依据，对保证滚珠丝杠使用性能和提高其工作寿命具有工程指导意义。
침대일단고정、일단지승적곤주사강상공작라모적량충불동안장방식，분석、비교료사강수력상태적차이；통과건립계급접촉각변화적곤주사강재하분포모형，정량연구료불동라모안장방식대강구법향재하분포화실제접촉각적영향규률。수치분석결과표명재라모화공작태적련접법란원리고정단적안장방식하，강구재하분포화접촉각분포균경위균형。령외라모안장방식대곤주사강축향강도적영향병불현저。저일결론위곤주사강적안장화유호제공료이론의거，대보증곤주사강사용성능화제고기공작수명구유공정지도의의。
Aiming at two different installation modes of a nut when the corresponding ball screw was fixed at one end and supported at the another,a comparative study on their influences on the load distribution of the ball screw was performed.The different load states of the screw for the two nut installation modes were firstly analyzed qualitatively. Then,a ball screw load distribution model considering varying of actual contact angle was established.Using the model, the influence laws of the nut installation modes on the normal load and actual contact angle of each steel ball were quantitatively investigated.The numerical results showed that the distributions of the normal load and contact angle are more even when the connecting flange of the nut is installed far from the screw's fixed end;in addition,the nut installation mode has no significant effect on the axial stiffness of the ball screw.The study results provided a theoretical basis for reasonable installation or maintenance of ball screws,they were significant for enhancing performances of ball screws and prolonging their life.