公开(公告)号：US08678653B2

公开(公告)日：2014-03-25

申请号：US12827014

申请日：2010-06-30

申请人： Nobuyoshi Yamashita ,  Natsuhiko Mori ,  Toshiyuki Mizytani ,  Takeshi Shimazaki ,  Koji Yamagata

发明人： Nobuyoshi Yamashita ,  Natsuhiko Mori ,  Toshiyuki Mizytani ,  Takeshi Shimazaki ,  Koji Yamagata

IPC分类号： F16C32/06 ,  F16C17/10

CPC分类号： B24B5/01 ,  B21K1/12 ,  B24B7/16 ,  F16C3/02 ,  F16C17/107 ,  F16C33/107 ,  F16C33/14 ,  F16C35/02 ,  F16C2220/46 ,  F16C2220/70 ,  F16C2226/12 ,  F16C2226/60 ,  Y10T29/49348

摘要： A low-cost shaft member for hydrodynamic bearing apparatuses restores the pressure balance in a thrust bearing gap formed on both axial sides of the flange portion in an early stage. A shaft material integrally having a shaft portion and a flange portion with a through-hole between both end faces of the flange portion is formed in a common forging step. As a result, the through-hole is formed to open to an inner diameter side of the bearing gaps avoiding the thrust bearing gaps formed on both end faces of the flange portion of the shaft member as a finished product.

摘要翻译： 用于流体动力轴承装置的低成本轴构件在早期阶段恢复形成在凸缘部分的两个轴向侧面上的止推轴承间隙中的压力平衡。 在一般的锻造步骤中形成一体地具有轴部的轴材料和在凸缘部的两个端面之间具有通孔的凸缘部。 结果，通孔形成为向轴承间隙的内径侧开口，避免形成在轴构件的凸缘部分的两个端面上的推力轴承间隙作为成品。