基于刚性测量的滚柱直线导轨副预加载荷研究  

Study on Preloading of Roller Linear Guide Way based on Stiffness Measurement

作　　者：疏亚雅 欧屹[1] 祖莉[1] 江波 臧晚君 

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]吉林省建设集团公路检测有限公司,吉林长春130000

出　　处：《工程与试验》2016年第3期22-25,82,共5页Engineering and Test

基　　金：[基金项目] 功能部件测试试验共性技术研究与能力建设( 2016ZX04004007) 。

摘　　要：为求出滚柱直线导轨副预加载荷的大小,提出了一种基于此类导轨副静刚度曲线求解预加载荷的方法。通过试验,获得有预加载荷的滚柱直线导轨副静刚度曲线。在曲线斜率发生明显变化处,将曲线分成两部分,以最小二乘法对不同部分的数据进行直线拟合,直线的交点即为导轨副上列滚柱预加载荷消失的临界点。通过临界点处的受力与变形量,可得预加载荷的大小。通过与传统求解预加载荷的方法作对比,此方法更加准确可靠。In order to obtain the preloading of roller linear guide way,a method for solving preloading is put forward based on the stiffness curve of roller linear guide way. According to the experiment,the static stiffness curve of roller linear guide way with preloading is obtained. At the point which the curve slope changes significantly,the curve is divided into two parts. The least square method is used to match the line data of different parts,and the intersection of lines is the critical point which the preloading of upper roller linear guide way disappears. By means of the stress and the deformation of the critical point,the preloading can be gotten. Compared with the traditional method for preloading,it is found that this method is more reliable.

关 键 词：滚柱直线导轨副 静刚度 预加载荷 临界点 

分 类 号：TH132[机械工程—机械制造及自动化]