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    Shaft Member For Hydrodynamic Bearing Apparatuses And A Method For Producing The Same
    1.
    发明申请
    Shaft Member For Hydrodynamic Bearing Apparatuses And A Method For Producing The Same 审中-公开
    用于流体动力轴承装置的轴构件及其制造方法

    公开(公告)号：US20070278881A1

    公开(公告)日：2007-12-06

    申请号：US11629910

    申请日：2005-08-31

    申请人： Nobuyoshi Yamashita ,  Hideaki Kubota ,  Natsuhiko Mori ,  Keiji Nagasaki ,  Syoichi Kodera ,  Masato Utiumi

    发明人： Nobuyoshi Yamashita ,  Hideaki Kubota ,  Natsuhiko Mori ,  Keiji Nagasaki ,  Syoichi Kodera ,  Masato Utiumi

    IPC分类号： H02K7/08

    CPC分类号： B24B7/162 ,  B24B5/18 ,  F16C3/02 ,  F16C17/107 ,  F16C33/107 ,  F16C33/14 ,  F16C2370/12 ,  Y10T29/49025 ,  Y10T29/4956 ,  Y10T29/49565 ,  Y10T29/49639

    摘要： A shaft member for hydrodynamic bearing apparatuses having higher dimensional accuracy produced at low costs and a method for producing the same are provided. Moreover, a shaft member for hydrodynamic bearing apparatuses having hydrodynamic grooves processed with high accuracy and a method for producing the same are provided without a large increase in the processing costs. A shaft material 10 integrally having a shaft portion 11 and a flange portion 12 is formed by a forging process, and the cylindricity of a part or the entire outer circumferential surface 11a of the shaft portion 11 is corrected. The end face 11b of the shaft portion of the shaft material 10 and the end face 12b of the flange portion 12 on the opposite side of the shaft portion are ground relative to the corrected face 13 mentioned above, and the outer circumferential surface 10b of the shaft material 10 is ground relative to these end faces 11b, 12b. This renders the cylindricity of the radial bearing faces 23a, 23b formed on the outer periphery of the shaft portion 21 of the produced shaft member 2 to be 3 μm or lower. Moreover, in a common forging step, a shaft material 110 integrally having the shaft portion 111 and flange portion 112 is formed, while simultaneously thrust hydrodynamic groove regions 112a, 112b are formed on both end faces of the flange portion 112. After the forging process, in a common rolling step, radial hydrodynamic groove regions 113a, 113b are formed on the outer circumferential surface 111a of the shaft portion 111. In a grinding step following the rolling process, the radial hydrodynamic groove regions 113a, 113b and the thrust hydrodynamic groove regions 112a, 112b are ground.

    摘要翻译： 提供了一种用于以低成本生产较高尺寸精度的流体动力轴承装置的轴构件及其制造方法。 此外，提供具有高精度处理的流体动力槽的流体动力轴承装置的轴构件及其制造方法，而不会大大增加加工成本。 通过锻造工艺形成一体地具有轴部11和凸缘部12的轴材料10，并且校正轴部11的一部分或整个外周面11a的圆柱度。 轴材10的轴部的端面11b和凸缘部12的与轴部相反侧的端面12b相对于上述校正面13被磨削，外周面10 轴材料10的相对于这些端面11b，12b被磨削。 这使得形成在所产生的轴构件2的轴部21的外周上的径向支承面23a，23b的圆柱度为3μm以下。 此外，在通常的锻造工序中，形成一体地具有轴部111和凸缘部112的轴材110，同时在凸缘部112的两个端面上同时形成有推力流体动力槽区域112a，112b。 在通常的轧制工序中，径向流体动力槽区域113a，113b形成在轴部111的外周面111a上。在轧制工序后的研磨工序中，径向流体动力槽区域113a， 113b和推力流体动力槽区域112a，112b被研磨。

    Method for producing shaft member for hydrodynamic bearing apparatus
    2.
    发明授权
    Method for producing shaft member for hydrodynamic bearing apparatus 有权
    制造用于流体动力轴承装置的轴件的方法

    公开(公告)号：US09003664B2

    公开(公告)日：2015-04-14

    申请号：US13149313

    申请日：2011-05-31

    申请人： Nobuyoshi Yamashita ,  Hideaki Kubota ,  Natsuhiko Mori ,  Keiji Nagasaki ,  Masahiro Makino

    发明人： Nobuyoshi Yamashita ,  Hideaki Kubota ,  Natsuhiko Mori ,  Keiji Nagasaki ,  Masahiro Makino

    IPC分类号： B21D53/10 ,  B24B7/16 ,  B24B5/18 ,  F16C17/10 ,  F16C33/10

    CPC分类号： B24B7/162 ,  B24B5/18 ,  F16C3/02 ,  F16C17/107 ,  F16C33/107 ,  F16C33/14 ,  F16C2370/12 ,  Y10T29/49025 ,  Y10T29/4956 ,  Y10T29/49565 ,  Y10T29/49639

    摘要： A shaft material integrally having a shaft portion and a flange portion is formed by a forging process. The end face of the shaft portion of the shaft material and the end face of the flange portion on the opposite side of the shaft portion are ground relative to the corrected face, and the outer circumferential surface of the shaft material is ground relative to the end faces. This renders the cylindricity of the radial bearing faces formed on the outer periphery of the shaft portion of the produced shaft member to be 3 μm or lower. Moreover, a shaft material integrally having the shaft portion and flange portion is formed, while simultaneously thrust hydrodynamic groove regions are formed on both end faces of the flange portion. After the forging process, radial hydrodynamic groove regions are formed on the outer circumferential surface of the shaft portion.

    摘要翻译： 通过锻造工艺形成一体地具有轴部和凸缘部的轴材。 轴材的轴部的端面和轴部相对侧的凸缘部的端面相对于校正面进行磨削，轴材的外周面相对于端部进行磨削 面孔 这使得在所生产的轴构件的轴部的外周上形成的径向支承面的圆柱度为3μm以下。 此外，形成一体地具有轴部和凸缘部的轴材料，同时在凸缘部的两个端面上形成有推力的流体动力槽区域。 在锻造过程之后，在轴部的外圆周表面上形成径向流体动力槽区域。

    HOUSING FOR FLUID LUBRICATION BEARING APPARATUSES, A HOUSING FOR HYDRODYNAMIC BEARING APPARATUSES, AND A METHOD FOR PRODUCING THE SAME
    5.
    发明申请
    HOUSING FOR FLUID LUBRICATION BEARING APPARATUSES, A HOUSING FOR HYDRODYNAMIC BEARING APPARATUSES, AND A METHOD FOR PRODUCING THE SAME 有权
    用于流体润滑轴承装置的壳体，用于水动力轴承装置的壳体及其制造方法

    公开(公告)号：US20110296896A1

    公开(公告)日：2011-12-08

    申请号：US13210969

    申请日：2011-08-16

    申请人： Nobuyoshi Yamashita ,  Toshiyuki Mizutani ,  Tetsuya Kirimura ,  Kiyoshi Shimizu ,  Yoshitaka Kabata ,  Masatoshi Tanigawa ,  Eiichi Fujita ,  Koji Yamagata ,  Masato Utiumi

    发明人： Nobuyoshi Yamashita ,  Toshiyuki Mizutani ,  Tetsuya Kirimura ,  Kiyoshi Shimizu ,  Yoshitaka Kabata ,  Masatoshi Tanigawa ,  Eiichi Fujita ,  Koji Yamagata ,  Masato Utiumi

    IPC分类号： B21D22/02

    CPC分类号： F16C33/02 ,  B21J5/02 ,  B21K1/05 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107 ,  H02K5/1675 ,  Y10T29/49636 ,  Y10T29/49639

    摘要： A fluid lubrication bearing apparatus which can stably produce high bearing performance is provided at low costs. Moreover, a method for producing a housing for hydrodynamic bearing apparatuses which can improve the accuracy of form of the housing of this type at low costs is provided.In forming a housing 7 which has a cylindrical shape and comprises a fixing face 7c for fixing the outer circumferential surface 8b of a bearing sleeve 8, and axial circulation grooves 7d for bringing both end faces 8c, Sd of the bearing sleeve 8 into circulation on the inner periphery by forging, a groove molding portion 18a2 is provided on the outer circumference of a rod 18 which serves as a forming mold for the inner periphery of the housing 7, and the circulation grooves 7d are formed by forging with this groove molding portion 18a2. Moreover, after a sealing face 107d and a cylindrical outer circumferential surface 107e provided on the outer periphery of the housing 107 are formed by forging, an inner circumferential surface 107c is formed by forging. Accordingly, the thrust bearing face 107a is finished to have the perpendicularity with respect to the inner circumferential surface 107c or outer circumferential surface 107e of 20 Mm or less. Moreover, the sealing face 107d is finished to have the coaxiality with respect to the inner circumferential surface 107c or outer circumferential surface 107e of 20 p.m or less. Moreover, the outer circumferential surface 107e is finished to have the coaxiality with respect to the inner circumferential surface 107c of 20 p.m or less.

    摘要翻译： 可以以低成本提供能够稳定地产生高轴承性能的流体润滑轴承装置。 此外，提供了一种用于制造能够以低成本提高这种类型的壳体的形状的精度的用于流体动力轴承装置的壳体的方法。 在形成具有圆筒形状并且包括用于固定轴承套筒8的外周表面8b的固定面7c的轴承循环槽7d和轴承套筒8的两个端面8c，Sd的循环中 通过锻造的内周，在作为壳体7的内周的成形用模具的杆18的外周设置有槽成形部18a2，并且循环槽7d通过锻造而形成，该槽成型部 18a2。 此外，在通过锻造形成密封面107d和设置在壳体107的外周上的圆筒形外周面107e之后，通过锻造形成内周面107c。 因此，止推轴承面107a被精加工成相对于内周面107c或外周面107e的垂直度为20μm以下。 此外，密封面107d被精加工成具有相对于内周面107c或外周面107e的20度以下的同轴度。 此外，外周面107e被精加工成相对于内周面107c的同轴度为20点以下。

    HOUSING FOR FLUID LUBRICATION BEARING APPARATUSES, A HOUSING FOR HYDRODYNAMIC BEARING APPARATUSES, AND A METHOD FOR PRODUCING THE SAME
    8.
    发明申请
    HOUSING FOR FLUID LUBRICATION BEARING APPARATUSES, A HOUSING FOR HYDRODYNAMIC BEARING APPARATUSES, AND A METHOD FOR PRODUCING THE SAME 有权
    用于流体润滑轴承装置的壳体，用于水动力轴承装置的壳体及其制造方法

    公开(公告)号：US20090208153A1

    公开(公告)日：2009-08-20

    申请号：US11816058

    申请日：2006-01-11

    申请人： Nobuyoshi Yamashita ,  Toshiyuki Mizutani ,  Tetsuya Kirimura ,  Kiyoshi Shimizu ,  Yoshitaka Kabata ,  Masatoshi Tanigawa ,  Eiichi Fujita ,  Koji Yamagata ,  Masato Utiumi

    发明人： Nobuyoshi Yamashita ,  Toshiyuki Mizutani ,  Tetsuya Kirimura ,  Kiyoshi Shimizu ,  Yoshitaka Kabata ,  Masatoshi Tanigawa ,  Eiichi Fujita ,  Koji Yamagata ,  Masato Utiumi

    IPC分类号： F16C32/06

    CPC分类号： F16C33/02 ,  B21J5/02 ,  B21K1/05 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107 ,  H02K5/1675 ,  Y10T29/49636 ,  Y10T29/49639

    摘要： A fluid lubrication bearing apparatus which can stably produce high bearing performance is provided at low costs. Moreover, a method for producing a housing for hydrodynamic bearing apparatuses which can improve the accuracy of form of the housing of this type at low costs is provided.In forming a housing 7 which has a cylindrical shape and comprises a fixing face 7c for fixing the outer circumferential surface 8b of a bearing sleeve 8, and axial circulation grooves 7d for bringing both end faces 8c, 8d of the bearing sleeve 8 into circulation on the inner periphery by forging, a groove molding portion 18a2 is provided on the outer circumference of a rod 18 which serves as a forming mold for the inner periphery of the housing 7, and the circulation grooves 7d are formed by forging with this groove molding portion 18a2. Moreover, after a sealing face 107d and a cylindrical outer circumferential surface 107e provided on the outer periphery of the housing 107 are formed by forging, an inner circumferential surface 107c is formed by forging. Accordingly, the thrust bearing face 107a is finished to have the perpendicularity with respect to the inner circumferential surface 107c or outer circumferential surface 107e of 20 μm or less. Moreover, the sealing face 107d is finished to have the coaxiality with respect to the inner circumferential surface 107c or outer circumferential surface 107e of 20 μm or less. Moreover, the outer circumferential surface 107e is finished to have the coaxiality with respect to the inner circumferential surface 107c of 20 μm or less.

    摘要翻译： 可以以低成本提供能够稳定地产生高轴承性能的流体润滑轴承装置。 此外，提供了一种用于制造能够以低成本提高这种类型的壳体的形状的精度的用于流体动力轴承装置的壳体的方法。 在形成具有圆筒形状的壳体7并且包括用于固定轴承套筒8的外周表面8b的固定面7c和用于使轴承套筒8的两个端面8c，8d进入循环的轴向循环槽7d 通过锻造的内周，在作为壳体7的内周的成形用模具的杆18的外周设置有槽成形部18a2，并且循环槽7d通过锻造而形成，该槽成型部 18a2。 此外，在通过锻造形成密封面107d和设置在壳体107的外周上的圆筒形外周面107e之后，通过锻造形成内周面107c。 因此，止推轴承面107a被精加工成具有相对于内周面107c或外周面107e为20μm以下的垂直度。 此外，密封面107d被精加工成相对于内周面107c或外周面107e具有20mum以下的同轴度。 此外，外周面107e被精加工成相对于内周面107c的同轴度为20μm以下。