精密离心机主轴回转误差对工作半径的影响  

Effect of rotational error of precision centrifugal main axle on working radius

作　　者：任顺清[1] 杨亚非[1] 吴广玉[1] 

机构地区：[1]哈尔滨工业大学惯导中心,黑龙江哈尔滨150001

出　　处：《哈尔滨工业大学学报》2000年第1期54-57,共4页Journal of Harbin Institute of Technology

摘　　要：介绍了主轴回转误差引起的回转中心与回转轴心误差的基本概念 ,指出离心机工作半径的起测点是主轴某截面的瞬心而不是几何中心 ,分析了主轴回转误差中一次谐波误差对离心机瞬时工作半径的影响程度 .在主轴上下两个截面上安装 4个位移传感器测试主轴的回转误差 ,这种方法克服了以往不能测试一次谐波误差的缺点 ,最后得出了由回转误差引起的瞬时工作半径误差 .Presents the elementary concept of rotary center error and rotary axle center error caused by main axle rotational error. The measurement start point is the rotary instantantaeous point rather than the geometric point on a section plane of the main axle, the effect of the first harmonic error on the instantaeous working radius of the centrifuge is analyzed. By the way of 4 displacement sensors mounted on the upper and lower section planes, the method of measuring the first harmonic error is put forward to measure the first harmonic error. In the end, the instantaneous working radius error caused by the rotational error of main axle is acquired.

关 键 词：精密离心机 工作半径 回转误差 主轴 

分 类 号：TD455.5[矿业工程—矿山机电] TQ051.84[化学工程]