FLUID DYNAMIC BEARING DEVICE
    3.
    发明申请
    FLUID DYNAMIC BEARING DEVICE 有权
    流体动力轴承装置

    公开(公告)号:US20100202715A1

    公开(公告)日:2010-08-12

    申请号:US12670437

    申请日:2008-08-12

    IPC分类号: F16C32/06

    摘要: To manufacture a shaft member, which is excellent in both accuracy and strength at low cost, a shaft member (2) includes a shaft portion (21) and a flange portion (22) provided to one end of the shaft portion (21). The flange portion (22) has an annular shape, and the shaft portion (21) and the flange portion (22) are fixed by a welded portion (23), which is formed by applying a laser beam (35) to an upper end of an inner periphery thereof.

    摘要翻译: 为了制造精密度和强度低的轴构件,轴构件(2)包括轴部(21)和设置在轴部(21)的一端的凸缘部(22)。 凸缘部22具有环状,轴部21和凸缘部22由焊接部23固定,焊接部23通过将激光束(35)施加到上端 的内周。

    Fluid dynamic bearing device
    4.
    发明授权
    Fluid dynamic bearing device 有权
    流体动力轴承装置

    公开(公告)号:US08821021B2

    公开(公告)日:2014-09-02

    申请号:US13121807

    申请日:2009-09-16

    IPC分类号: F16C32/06

    摘要: A shaft member is provided with a shaft portion and a flange portion coupled with a lower end surface of the shaft portion. The shaft portion is formed into a complete circular shape in cross section, and the flange portion is provided with a through-hole in which a part of a circumferential region is retracted to a radially outer side with respect to a lower end of the shaft portion so as to exhibit a non-circular shape. The shaft portion and the flange portion are coupled with each other in a state of butting the lower end surface of the shaft portion and an upper end surface of the flange portion against each other. With this, a fluid path is formed by opening both end surfaces of the flange portion.

    摘要翻译: 轴构件设置有轴部和与轴部的下端面联接的凸缘部。 轴部形成为圆形的整个圆形,并且凸缘部设置有通孔,周向区域的一部分相对于轴部的下端缩回到径向外侧 以呈现非圆形形状。 轴部和凸缘部在轴部的下端面和凸缘部的上端面彼此抵接的状态下彼此联接。 由此,通过打开凸缘部的两个端面来形成流体路径。

    FLUID DYNAMIC BEARING DEVICE
    5.
    发明申请
    FLUID DYNAMIC BEARING DEVICE 有权
    流体动力轴承装置

    公开(公告)号:US20110176758A1

    公开(公告)日:2011-07-21

    申请号:US13121807

    申请日:2009-09-16

    IPC分类号: F16C32/06

    摘要: In order to easily and inexpensively manufacture a shaft member provided with a flange, which is capable of stably yielding excellent bearing performance, a shaft member (2) is provided with a shaft portion (2a) and a flange portion (2b) coupled with a lower end surface (2a2) of the shaft portion (2a). The shaft portion (2a) is formed into a complete circular shape in cross section, and the flange portion (2b) is provided with a through-hole (2c) in which a part of a circumferential region is retracted to a radially outer side with respect to a lower end of the shaft portion (2a) so as to exhibit a non-circular shape. The shaft portion (2a) and the flange portion (2b) are coupled with each other in a state of butting the lower end surface (2a2) of the shaft portion (2a) and an upper end surface (2b1) of the flange portion (2b) against each other. With this, a fluid path (11) is formed by opening both end surfaces (2b1) and (2b2) of the flange portion (2b) while being constituted by the following: an upper end opening portion defined by an upper end opening portion of the through-hole (2c) and a lower end portion of the shaft portion (2a); and a lower end opening portion constituted by a lower end opening portion of the through-hole (2c).

    摘要翻译: 为了容易且廉价地制造设置有能够稳定地产生优异的轴承性能的凸缘的轴构件,轴构件(2)设置有轴部(2a)和凸缘部(2b),凸缘部 轴部(2a)的下端面(2a2)。 轴部(2a)的横截面形成为圆形,凸缘部(2b)设置有贯通孔(2c),其中周向部分的一部分缩回到径向外侧, 相对于轴部(2a)的下端,以呈现非圆形形状。 轴部分(2a)和凸缘部分(2b)在轴部分(2a)的下端表面(2a2)和凸缘部分的上端面(2b1)对接的状态下彼此联接 2b)彼此。 由此,通过打开凸缘部分(2b)的两个端面(2b1)和(2b2)同时形成流体路径(11),同时由以下构成:上端开口部分由上端开口部分 通孔(2c)和轴部分(2a)的下端部分; 以及由通孔(2c)的下端开口部构成的下端开口部。

    Fluid dynamic bearing device
    6.
    发明授权
    Fluid dynamic bearing device 有权
    流体动力轴承装置

    公开(公告)号:US08297844B2

    公开(公告)日:2012-10-30

    申请号:US12670437

    申请日:2008-08-12

    IPC分类号: F16C32/06

    摘要: To manufacture a shaft member, which is excellent in both accuracy and strength at low cost, a shaft member (2) includes a shaft portion (21) and a flange portion (22) provided to one end of the shaft portion (21). The flange portion (22) has an annular shape, and the shaft portion (21) and the flange portion (22) are fixed by a welded portion (23), which is formed by applying a laser beam (35) to an upper end of an inner periphery thereof.

    摘要翻译: 为了制造精密度和强度低的轴构件,轴构件(2)包括轴部(21)和设置在轴部(21)的一端的凸缘部(22)。 凸缘部22具有环状,轴部21和凸缘部22由焊接部23固定,焊接部23通过将激光束(35)施加到上端 的内周。

    Hydrodynamic bearing device
    7.
    发明授权
    Hydrodynamic bearing device 有权
    流体动力轴承装置

    公开(公告)号:US08038350B2

    公开(公告)日:2011-10-18

    申请号:US10584314

    申请日:2005-01-12

    IPC分类号: F16C17/10 F16C32/06

    摘要: In order to prevent degradation of accuracy and decrease of strength when a hydrodynamic bearing device is assembled and to reduce a cost of the hydrodynamic bearing device, a guide face serving as a guide when a disc hub is press fitted into a shaft member is formed on the shaft member. Then, the guide face, an outer circumferential surface of the shaft member adjacent to the guide face, and a boundary portion between the guide face and the outer circumferential surface are ground simultaneously, thereby forming a blunting portion having a radius r in the boundary portion. Thus, no edge remains between the guide face and the outer circumferential surface. Therefore, press-fitting resistance when the disc hub is press fitted to an end of the shaft member can be reduced.

    摘要翻译: 为了防止流体动力轴承装置组装时的精度降低和强度降低,并且降低流体动压轴承装置的成本,当将盘毂压配合到轴构件中时用作导向件的导向面形成在 轴构件。 然后,引导面,与导向面相邻的轴构件的外周面以及引导面与外周面之间的边界部分同时被磨削,从而形成在边界部分中具有半径r的钝化部分 。 因此,在引导面和外周面之间不存在边缘。 因此,当将盘毂压配合到轴构件的端部时,可以减小压配阻力。

    FLUID DYNAMIC BEARING DEVICE
    8.
    发明申请
    FLUID DYNAMIC BEARING DEVICE 审中-公开
    流体动力轴承装置

    公开(公告)号:US20100226601A1

    公开(公告)日:2010-09-09

    申请号:US12377293

    申请日:2007-08-28

    IPC分类号: F16C32/06

    摘要: A hub (10) is a product formed by injection molding of a resin together with a core metal (13) as an inserted component, and the core metal (13) is exposed on a surface of the hub (10). With this configuration, a cavity of a die for molding the hub (10) is not divided by the core metal (13), and hence it is possible to suppress deterioration in fluidity of a resin due to arrangement of the core metal (13) in the cavity.

    摘要翻译: 轮毂(10)是通过将树脂与作为插入部件的芯金属(13)一起注射成型而形成的产品,并且芯部金属(13)暴露在轮毂(10)的表面上。 利用这种构造,用于模制轮毂(10)的模具的空腔不被芯金属(13)分割,因此可以抑制由于芯金属(13)的布置导致的树脂的流动性的劣化, 在腔里。

    Hydrodynamic Bearing Device
    9.
    发明申请
    Hydrodynamic Bearing Device 有权
    流体动力轴承装置

    公开(公告)号:US20080037918A1

    公开(公告)日:2008-02-14

    申请号:US10584314

    申请日:2005-01-12

    IPC分类号: F16C17/10

    摘要: In order to prevent degradation of accuracy and decrease of strength when a hydrodynamic bearing device is assembled and to reduce a cost of the hydrodynamic bearing device, a guide face 2c serving as a guide when a disc hub 3 is press fitted into a shaft member 2 is formed on the shaft member 2. Then, the guide face 2c, an outer circumferential surface 2a3 of the shaft member 2 adjacent to the guide face 2c, and a boundary portion between the guide face 2c and the outer circumferential surface 2a3 are ground simultaneously, thereby forming a blunting portion 2d having a radius r in the boundary portion. Thus, no edge remains between the guide face 2c and the outer circumferential surface 2a3. Therefore, press-fitting resistance when the disc hub is press fitted to an end of the shaft member 2 can be reduced.

    摘要翻译: 为了防止流体动力轴承装置组装时的精度降低和强度降低,并且降低流体动压轴承装置的成本,当盘毂3压配合到轴构件中时用作导向件的导向面2c 2形成在轴构件2上。 然后,引导面2c,轴构件2的与引导面2c相邻的外周面2a,以及引导面2c和外周面2a之间的边界部分同时被磨削, 从而形成在边界部分具有半径r的钝化部分2d。 因此,引导面2c和外周面2a之间没有边缘残留。 因此,当将盘毂压配合到轴构件2的端部时,可以减小压配阻力。