公开(公告)号：US09695871B2

公开(公告)日：2017-07-04

申请号：US14290199

申请日：2014-05-29

Applicant: SKF Magnetic Mechatronics ,  Aktiebolaget SKF

Inventor： Philipp Krebs ,  Jens Anders ,  Eddy Herisse ,  Frederic Ponson

IPC: F16C32/04 ,  F16C39/02 ,  F16C23/04 ,  F16C33/06 ,  H02K7/09

CPC classification number: F16C32/0402 ,  F16C23/041 ,  F16C32/0442 ,  F16C32/047 ,  F16C32/0474 ,  F16C33/06 ,  F16C39/02 ,  F16C2240/40 ,  F16C2240/50 ,  F16C2360/44 ,  H02K7/09

Abstract: An assembly that includes a rotating shaft supported with respect to a stationary housing by at least one active magnetic bearing presenting a mean radial air gap and at least one auxiliary bearing having a bushing fixed to the housing and a sleeve fixed on the rotating shaft. The bushing and the sleeve have opposite surfaces that define a clearance (E2) which is less than the mean radial air gap (E1). The bushing and the sleeve each exhibit symmetry around a longitudinal axis of the shaft and have different profiles in a longitudinal cross-section including the longitudinal axis to optimize the contact pressure distribution when the rotating shaft lands on the auxiliary bearing.

公开(公告)号：US20140354098A1

公开(公告)日：2014-12-04

申请号：US14290199

申请日：2014-05-29

Applicant: SKF Magnetic Mechatronics

Inventor： Philipp Krebs ,  Jens Anders ,  Eddy Herisse ,  Frederic Ponson

IPC: F16C32/04 ,  F16C33/06

CPC classification number: F16C32/0402 ,  F16C23/041 ,  F16C32/0442 ,  F16C32/047 ,  F16C32/0474 ,  F16C33/06 ,  F16C39/02 ,  F16C2240/40 ,  F16C2240/50 ,  F16C2360/44 ,  H02K7/09

Abstract: An assembly that includes a rotating shaft supported with respect to a stationary housing by at least one active magnetic bearing presenting a mean radial air gap and at least one auxiliary bearing having a bushing fixed to the housing and a sleeve fixed on the rotating shaft. The bushing and the sleeve have opposite surfaces that define a clearance (E2) which is less than the mean radial air gap (E1). The bushing and the sleeve each exhibit symmetry around a longitudinal axis of the shaft and have different profiles in a longitudinal cross-section including the longitudinal axis to optimize the contact pressure distribution when the rotating shaft lands on the auxiliary bearing.

Abstract translation: 一种组件，其包括通过至少一个具有平均径向气隙的主动磁轴承而相对于固定壳体支撑的旋转轴，以及至少一个辅助轴承，其具有固定到所述壳体的衬套和固定在所述旋转轴上的套筒。 衬套和套管具有相对的表面，其限定了小于平均径向气隙（E1）的间隙（E2）。 衬套和套管各自围绕轴的纵向轴线显示对称性，并且在包括纵向轴线的纵向截面中具有不同的轮廓，以在旋转轴落在辅助轴承上时优化接触压力分布。