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1. 发明专利

JP2012177456A Sintered bearing and its manufacturing method 有权
标题翻译：烧结轴承及其制造方法
公开(公告)号：JP2012177456A
公开(公告)日：2012-09-13
申请号：JP2011041837
申请日：2011-02-28
申请人： Ntn Corp , Ntn株式会社
发明人： KURIMURA TETSUYA , HORI SEIJI , YAMASATO MASASHI , ARAI TAKAO , ITO FUYUKI
IPC分类号： F16C33/14 , F16C17/02 , F16C17/04
CPC分类号： F16C33/107 , F16C17/026 , F16C17/107 , F16C2370/12
摘要： PROBLEM TO BE SOLVED: To prevent the sag of hills in dynamic groove regions which are formed at the internal peripheral face of a sintered bearing, and to improve the rigidity of the bearing.SOLUTION: The annular hills 8a6, 8a7 for connecting ends of a plurality of inclined hills 8a3, 8a4 over entire peripheries of the hills are formed at least at one-end sides in axial directions of the dynamic groove regions formed at radial bearing faces A1, A2. By this, there are formed annular recesses 20a6, 20a7 which connect ends of inclined recesses 20a3, 20a4 which form the inclined hills 8a3, 8a4 out of molding metal molds 20a, 20b forming the dynamic groove regions, the ends of the inclined recesses 20a3, 20a4 are not brought into states that they are surrounded at three faces, thereby a material of a sintered body can easily enter the bearing, and thus the inclined hills 8a3, 8a4 can be accurately molded up to their ends.
摘要翻译：要解决的问题：为了防止形成在烧结轴承的内周面的动态槽区域中的山丘的下垂，并且提高轴承的刚性。解决方案：用于在山体的整个周边连接多个倾斜山丘8a3,8a4的端部的环形山脊8a6,8a7至少形成在径向轴承形成的动态槽区域的轴向方向上的一端侧面A1，A2。由此，形成有环形凹部20a6,20a7，其连接形成动态凹槽区域的模制金属模具20a，20b形成倾斜凹部8a3，8a4的倾斜凹部20a3，20a4的端部，倾斜凹部20a3， 20a4没有被形成为三面被包围的状态，因此烧结体的材料可以容易地进入轴承，因此可以将倾斜的山丘8a3,8a4精确地模制到其端部。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2012247052A Fluid dynamic pressure bearing device 审中-公开
标题翻译：流体动力压力轴承装置
公开(公告)号：JP2012247052A
公开(公告)日：2012-12-13
申请号：JP2011121762
申请日：2011-05-31
申请人： Ntn Corp , Ntn株式会社
发明人： ARAI TAKAO , KOMATSU SHUICHI , HIRAIDE ATSUSHI
IPC分类号： F16C33/14 , F16C17/10 , F16C33/74
摘要： PROBLEM TO BE SOLVED: To provide a fluid dynamic pressure bearing device including an annular projected part roughly in the diametrical-direction center of the disk part of a hub, in which fastening strength and assembling accuracy of the hub and a shaft part are secured, and which is easily manufactured thereby having increased productivity.SOLUTION: In the disk part 3a of a hub 3, a first region 3a nearer to the inner diameter side than at least an annular projected part 3d is integrally formed with a shaft part 2 to configure a flange integral shaft A, and the annular projected part 3d formed separately from the flange integral shaft A is fixed thereto.
摘要翻译：要解决的问题：提供一种流体动压轴承装置，其包括大致在毂的圆盘部分的径向中心的环形突出部分，其中轮毂和轴部分的紧固强度和组装精度被固定，并且容易制造，从而具有提高的生产率。解决方案：在轮毂3的盘部分3a中，与轴部2一体地形成比至少一个环形突出部3d更靠近内径侧的第一区域3a，以构成凸缘一体轴A，并且与凸缘一体轴A分开形成的环状突起部3d被固定。版权所有（C）2013，JPO＆INPIT

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