公开(公告)号：US5686772A

公开(公告)日：1997-11-11

申请号：US374180

申请日：1995-01-18

申请人： Jerome Delamare ,  Jean-Paul Yonnet ,  Elisabeth Rulliere

发明人： Jerome Delamare ,  Jean-Paul Yonnet ,  Elisabeth Rulliere

IPC分类号： F04D19/04 ,  F16C32/04 ,  F16C39/06 ,  H02K7/09

CPC分类号： F16C39/063 ,  F04D19/048 ,  F16C32/0425 ,  F16C32/0427

摘要： The bearing has a fixed portion, and a moving portion, and includes a passive magnetic abutment composed of a fixed element secured to said fixed portion, and of a moving element secured to said moving portion. The bearing further including a passive magnetic centering bearing which is coaxial with said passive abutment, and which is composed of a fixed element secured to the fixed portion, and of a moving element secured to the moving portion, the passive abutment externally surrounding the passive centering bearing, the passive abutment having axial stiffness k.sub.ab, radial stiffness k.sub.rb, a mean radius R.sub.mb, and an inside radius R.sub.ib, and said passive centering bearing having axial stiffness k.sub.ac, radial stiffness k.sub.rc, a mean radius R.sub.mc, and an outside radius R.sub.ec, an air gap e separating the fixed element of said abutment from the moving element thereof and separating the fixed element of the centering bearing from the moving element thereof, these parameters being chosen so as to satisfy the following three relationships simultaneously: 1) .vertline.k.sub.rc .vertline.>.vertline.k.sub.rb .vertline. 2) R.sub.mb >R.sub.mc ##EQU1## 3) R.sub.ib -R.sub.ec .gtoreq.3e.

摘要翻译： 轴承具有固定部分和移动部分，并且包括由固定到所述固定部分的固定元件和固定到所述移动部分的移动元件组成的被动磁性支座。 所述轴承还包括与所述被动基座同轴并且由固定在所述固定部分上的固定元件和固定到所述移动部分的移动元件组成的被动中心定位轴承，所述被动基座外部围绕所述被动对中 被动对接轴具有轴向刚度kab，径向刚度krb，平均半径Rmb和内半径R b，并且所述被动对中轴承具有轴向刚度kac，径向刚度krc，平均半径Rmc和外半径Rec， 将所述支座的固定元件与其移动元件分离并将定心轴承的固定元件与其移动元件分离的气隙e，选择这些参数以同时满足以下三种关系：1）| krc | > | krb | 2）Rmb> Rmc 3）Rib-Rec> / = 3e。