静圧ねじの試作(第2報) : スラストおよびラジアル剛性の解析

概要

論文の詳細を見る
In the 1st report, design information about the improved hydrostatic lead screw, which has new types of oil pockets and restrictors, was shown; besides the structure and mechanism, the virtual bearing area and the property of the restrictors were also shown. In the present paper, the thrust and radial stiffness, which are essential for lead screws, are analysed by both numerical and experimental methods. Experimental values of the tiffness can be calculated from the displacement of the supported member when either the load or the supply pressure is varied. The experimental results obtained by such measurements show good. agreement with the numerical results, and it is proved that both the thrust and radial stiffness can be improved by increasing the number of oil pockets, while the influence of the circumferential. flow on the stiffness is negligible. These analyses prove that the newly designed oil pockets and restrictors not only facilitate the manufacture but also improve the performance of the hydrostatic lead screw.
公益社団法人精密工学会の論文
1983-06-05