公开(公告)号：US08568033B2

公开(公告)日：2013-10-29

申请号：US13602420

申请日：2012-09-04

申请人： Akihiro Kimura ,  Teiichi Hirono ,  Kunio Sakurada ,  Kyoko Horise

发明人： Akihiro Kimura ,  Teiichi Hirono ,  Kunio Sakurada ,  Kyoko Horise

IPC分类号： F16C32/06

CPC分类号： F16C32/0659 ,  F16C17/10 ,  F16C17/107 ,  F16C33/107 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2009 ,  G11B19/2036 ,  H02K5/1675 ,  H02K7/08 ,  H02K7/085

摘要： In a bearing apparatus, a first cup portion defining a portion of a stationary portion of a bearing apparatus includes a circular plate portion and a cylindrical portion projecting downward from an outer edge portion of the circular plate portion. A rotating portion of the bearing apparatus includes an annular recessed portion arranged to accommodate at least a lower end portion of the cylindrical portion. Accordingly, it is possible to limit the axial dimension of the bearing apparatus while also enabling a radial dynamic pressure groove array. Additionally, one end of a through hole defined in the rotating portion is arranged to open into the annular recessed portion.

摘要翻译： 在轴承装置中，限定轴承装置的固定部分的一部分的第一杯部包括圆板部和从圆板部的外缘部向下方突出的圆筒部。 轴承装置的旋转部分包括设置成容纳圆柱形部分的至少下端部的环形凹部。 因此，能够限制轴承装置的轴向尺寸，同时也能够实现径向动压槽阵列。 此外，限定在旋转部分中的通孔的一端被布置成打开到环形凹部中。

公开(公告)号：US08690435B2

公开(公告)日：2014-04-08

申请号：US12952223

申请日：2010-11-23

申请人： Akihiro Kimura ,  Kyoko Horise ,  Ryota Ogino ,  Kunio Sakurada ,  Teiichi Hirono

发明人： Akihiro Kimura ,  Kyoko Horise ,  Ryota Ogino ,  Kunio Sakurada ,  Teiichi Hirono

IPC分类号： F16C32/06

CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C2370/12

摘要： A dynamic pressure bearing has a reduced axial dimension and is constructed to ensure smooth feeding of a lubricating oil. The dynamic pressure bearing includes a communicating hole and at least one tapered seal, and is constructed such that an opening angle of one of the at least one tapered seal through which oil feeding is possible is in a range of about 30 degrees inclusive to about 180 degrees exclusive, a tapered seal wall surface depth W1 of the tapered seal is about 0.3 mm or more, and a sum of distances over which the lubricating oil travels from both sides of an end portion of the communicating hole in a cross-section beyond a wall surface of the communicating hole along a wall surface opposite the end portion of the communicating hole exceeds an inside diameter of the communicating hole.

摘要翻译： 动态压力轴承具有减小的轴向尺寸并且构造成确保润滑油的顺利进给。 动压轴承包括连通孔和至少一个锥形密封件，并且构造成使得至少一个锥形密封件中的一个的开启角度可以在大约30度至大约180度的范围内 锥形密封件的锥形密封壁表面深度W1为约0.3mm以上，以及润滑油在连通孔的端部的两侧从横截面的两侧行进的距离之和超过 连通孔的沿着与连通孔的端部相对的壁面的壁面超过连通孔的内径。

公开(公告)号：US08794839B2

公开(公告)日：2014-08-05

申请号：US13602348

申请日：2012-09-04

申请人： Akihiro Kimura ,  Teiichi Hirono ,  Kunio Sakurada ,  Kyoko Horise ,  Takehito Tamaoka ,  Kazuhiro Sato ,  Yoichi Sekii

发明人： Akihiro Kimura ,  Teiichi Hirono ,  Kunio Sakurada ,  Kyoko Horise ,  Takehito Tamaoka ,  Kazuhiro Sato ,  Yoichi Sekii

IPC分类号： F16C32/06

CPC分类号： F16C17/107 ,  F16C33/107 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2036 ,  H02K5/1677

摘要： A bearing apparatus includes a stationary shaft, a first annular member, and a rotating member. The rotating member includes a first inner circumferential surface arranged opposite to the outer circumferential surface of the stationary shaft, and a second inner circumferential surface arranged opposite to an outer circumferential surface of the first annular member. A lubricating oil is arranged in a gap between a surface of a stationary member and the rotating member. On an upper side of an upper surface of the lubricating oil, the first annular member and the rotating member are arranged radially opposite to each other with a slight gap defined therebetween, so that a labyrinth seal is defined. The labyrinth seal and a fixing range over which the stationary shaft and the first annular member are fixed to each other are arranged to overlap with each other in a radial direction.

摘要翻译： 轴承装置包括固定轴，第一环形构件和旋转构件。 旋转构件包括与固定轴的外周面相对配置的第一内周面和与第一环状构件的外周面相对设置的第二内周面。 润滑油布置在固定件的表面和旋转件之间的间隙中。 在润滑油的上表面的上侧，第一环形构件和旋转构件彼此径向相对设置，在其间限定了微小的间隙，从而限定了迷宫式密封。 迷宫式密封件和固定轴和第一环形构件彼此固定的固定范围被布置成在径向方向上彼此重叠。

公开(公告)号：US08277125B2

公开(公告)日：2012-10-02

申请号：US12791147

申请日：2010-06-01

申请人： Akihiro Kimura ,  Teiichi Hirono ,  Kunio Sakurada ,  Kyoko Horise

发明人： Akihiro Kimura ,  Teiichi Hirono ,  Kunio Sakurada ,  Kyoko Horise

IPC分类号： F16C32/06

CPC分类号： F16C32/0659 ,  F16C17/10 ,  F16C17/107 ,  F16C33/107 ,  F16C33/745 ,  F16C2370/12 ,  G11B19/2009 ,  G11B19/2036 ,  H02K5/1675 ,  H02K7/08 ,  H02K7/085

摘要： In a bearing apparatus, a first cup portion defining a portion of a stationary portion of a bearing apparatus includes a circular plate portion and a cylindrical portion projecting downward from an outer edge portion of the circular plate portion. A rotating portion of the bearing apparatus includes an annular recessed portion arranged to accommodate at least a lower end portion of the cylindrical portion. Accordingly, it is possible to limit the axial dimension of the bearing apparatus while also enabling both a radial dynamic pressure groove array and a pumping groove array to have a sufficient axial dimension. Additionally, one end of a through hole defined in the rotating portion is arranged to open into the annular recessed portion, so that any air bubbles introduced into a lubricating oil by the pumping groove array can be efficiently caused to flow downward through the through hole and out of the bearing apparatus.

摘要翻译： 在轴承装置中，限定轴承装置的固定部分的一部分的第一杯部包括圆板部和从圆板部的外缘部向下方突出的圆筒部。 轴承装置的旋转部分包括设置成容纳圆柱形部分的至少下端部的环形凹部。 因此，可以限制轴承装置的轴向尺寸，同时使径向动压槽阵列和泵送槽阵列能够具有足够的轴向尺寸。 此外，限定在旋转部分中的通孔的一端被布置成向环形凹部打开，从而可以有效地使通过泵浦槽阵列引入到润滑油中的任何气泡向下流过通孔， 离开轴承装置。

公开(公告)号：US08337086B2

公开(公告)日：2012-12-25

申请号：US12793851

申请日：2010-06-04

申请人： Takayuki Oe ,  Teiichi Hirono ,  Kunio Sakurada ,  Junya Mizukami

发明人： Takayuki Oe ,  Teiichi Hirono ,  Kunio Sakurada ,  Junya Mizukami

IPC分类号： F16C32/06

CPC分类号： F16C33/745 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107 ,  F16C2370/12 ,  G11B19/2036

摘要： A bearing apparatus includes a shaft, a thrust cup including an annular potion and a cylindrical portion, a rotating member including a through hole defined therein, and a lubricating oil. A second gap defined between a lower surface of the rotating member and an upper surface of the annular portion of the thrust cup includes a first region in communication with a capillary seal portion, and a second region positioned radially inward of the first region and having an axial dimension smaller than that of the first region. A lower end portion of the through hole is open at a location radially outwardly away from a boundary between the first and second regions, so that a local circulation of the lubricating oil arises within the first region during rotation of the rotating member.

摘要翻译： 轴承装置包括轴，包括环形部分的推力杯和圆柱形部分，包括限定在其中的通孔的旋转构件和润滑油。 限定在旋转构件的下表面和推力杯的环形部分的上表面之间的第二间隙包括与毛细管密封部分连通的第一区域和位于第一区域的径向内侧的第二区域，并且具有 轴向尺寸小于第一区域的尺寸。 通孔的下端部在径向向外远离第一和第二区域之间的边界的位置处开口，使得在旋转构件旋转期间润滑油的局部循环在第一区域内产生。

公开(公告)号：US20110026163A1

公开(公告)日：2011-02-03

申请号：US12839568

申请日：2010-07-20

申请人： Manabu Komori ,  Mitsuya Kusuhara ,  Kunio Sakurada ,  Kazuya Sato

发明人： Manabu Komori ,  Mitsuya Kusuhara ,  Kunio Sakurada ,  Kazuya Sato

IPC分类号： G11B5/60 ,  F16C32/06 ,  B21D53/10 ,  H02K7/08

CPC分类号： G11B19/2036 ,  F16C17/107 ,  F16C33/14 ,  F16C2226/12 ,  F16C2226/14 ,  F16C2370/12 ,  Y10T29/49639

摘要： According to the preferred embodiment of the present invention, a production method of a fluid dynamic bearing including: a shaft arranged along a center axis; an annular portion expanding radially outwards from the shaft; a sleeve having a top surface opposed to an under surface of the annular portion, for supporting the shaft and the annular portion in a relatively rotatable manner; and a lubricating fluid interposed between the shaft and annular portion and the sleeve, includes the step of preparing the annular portion having a substantially annular edge surrounding the center axis on the under surface; the step of applying a forming liquid for forming a solid lubricating film on the radially outer side of the edge of the under surface; and the step of evaporating a solvent of the forming liquid.

摘要翻译： 根据本发明的优选实施例，一种流体动力轴承的制造方法，包括：沿中心轴布置的轴; 从所述轴径向向外延伸的环状部分; 具有与所述环形部分的下表面相对的顶表面的套筒，用于以相对可旋转的方式支撑所述轴和所述环形部分; 并且插入在所述轴与环形部分和所述套筒之间的润滑流体包括制备所述环形部分的步骤，所述环形部分具有围绕所述下表面上的所述中心轴线的基本上环形的边缘; 在下表面的边缘的径向外侧施加用于形成固体润滑膜的成形液的步骤; 以及蒸发成形液体的溶剂的步骤。

公开(公告)号：US08613553B2

公开(公告)日：2013-12-24

申请号：US12839568

申请日：2010-07-20

申请人： Manabu Komori ,  Mitsuya Kusuhara ,  Kunio Sakurada ,  Kazuya Sato

发明人： Manabu Komori ,  Mitsuya Kusuhara ,  Kunio Sakurada ,  Kazuya Sato

IPC分类号： F16C32/06

CPC分类号： G11B19/2036 ,  F16C17/107 ,  F16C33/14 ,  F16C2226/12 ,  F16C2226/14 ,  F16C2370/12 ,  Y10T29/49639

摘要： A fluid dynamic bearing includes: a shaft arranged along a center axis; an annular portion expanding radially outwards from the shaft; a sleeve having a top surface opposed to an under surface of the annular portion to support the shaft and the annular portion in a relatively rotatable manner; and a lubricating fluid interposed between the shaft and annular portion and the sleeve. The fluid dynamic bearing further includes a substantially annular edge surrounding the center axis on the under surface and a solid lubricating film on the radially outer side of the edge.

摘要翻译： 流体动力轴承包括：沿着中心轴布置的轴; 从所述轴径向向外延伸的环状部分; 套筒，其具有与所述环形部分的下表面相对的顶表面，以相对可旋转的方式支撑所述轴和所述环形部分; 以及介于轴与环形部分和套筒之间的润滑流体。 流体动力轴承还包括围绕下表面的中心轴线的基本上环形的边缘和在边缘的径向外侧上的固体润滑膜。