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    Hydrodynamic type porous oil-impregnated bearing and bearing device
    2.
    发明授权
    Hydrodynamic type porous oil-impregnated bearing and bearing device 失效
    流体动力型多孔含油轴承和轴承装置

    公开(公告)号：US5941646A

    公开(公告)日：1999-08-24

    申请号：US979236

    申请日：1997-11-26

    申请人： Natsuhiko Mori ,  Yasuhiro Yamamoto ,  Isao Komori ,  Kazuo Okamura

    发明人： Natsuhiko Mori ,  Yasuhiro Yamamoto ,  Isao Komori ,  Kazuo Okamura

    IPC分类号： F16C17/10 ,  F16C33/10 ,  F16C32/06

    CPC分类号： F16C33/104 ,  F16C17/026 ,  F16C33/102 ,  F16C33/107 ,  F16C2370/12 ,  F16C2370/22 ,  Y10S384/902

    摘要： Two bearing bodies 1 each having a bearing surface 17 are force-fitted into a housing 7 which is opened at one end and closed at the other end thereof, and a shaft 2 (rotary shaft) is inserted in the bearing bodies 1, thereby forming two axially spaced porous oil-impregnated bearings A. The inner peripheral surfaces of the bearing bodies 1 and the oil leak preventing member 11 are formed with a plurality of inclined grooves (hydrodynamic-pressure-generating grooves 5 and air current producing grooves 12). A solid lubricating composition 3 composed of synthetic resin as a base material and oil as a lubricating component by blending lubricating oil or lubricating greases is disposed between the two bearing bodies 1.

    摘要翻译： 每个具有轴承表面17的两个轴承体1被压配合到一端敞开并在另一端封闭的壳体7中，并且轴2（旋转轴）插入到轴承体1中，从而形成 两个轴向间隔的多孔含油轴承A.轴承体1和防漏油部件11的内周面形成有多个倾斜槽（流体动力学压力产生槽5和气流产生槽12）。 在两个轴承体1之间设置有由作为基材的合成树脂构成的固体润滑组合物3和通过混合润滑油或润滑脂的润滑成分的油。

    Hydrodynamic type porous oil-impregnated bearing
    4.
    发明授权
    Hydrodynamic type porous oil-impregnated bearing 有权
    流体动力型多孔含油轴承

    公开(公告)号：US07059052B2

    公开(公告)日：2006-06-13

    申请号：US09921602

    申请日：2001-08-06

    申请人： Kazuo Okamura ,  Yasuhiro Yamamoto ,  Isao Komori ,  Natsuhiko Mori ,  Makoto Shiranami

    发明人： Kazuo Okamura ,  Yasuhiro Yamamoto ,  Isao Komori ,  Natsuhiko Mori ,  Makoto Shiranami

    IPC分类号： B21K1/10

    CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C17/107 ,  F16C33/104 ,  F16C33/145 ,  Y10T29/49639

    摘要： The porous oil-impregnated bearing 1 comprises a bearing body 1a made of a porous material, and oil retained in the pores of the bearing body 1a by impregnation with lubricating oil or lubricating grease. The inner peripheral surface of the bearing body 1a is formed with a bearing surface 1b opposed to an outer peripheral surface of a shaft to be supported, with a bearing clearance defined therebetween. The bearing surface 1b has a first region m1 in which a plurality of hydrodynamic pressure generating grooves 1c inclined in one direction with respect to the axial direction are circumferentially disposed, a second region m2 which is axially spaced from said first region m1 and in which a plurality of hydrodynamic pressure generating grooves 1c inclined in the other direction with respect to the axial direction are circumferentially disposed, and an annular smooth region n disposed between the first and second regions m1 and m2.

    摘要翻译： 多孔含油轴承1包括由多孔材料制成的轴承体1a，以及通过浸渍润滑油或润滑脂而保留在轴承体1a的孔中的油。 轴承体1a的内周面形成有与要被支撑的轴的外周面相对的轴承面1b，其间限定有轴承间隙。 轴承面1b具有第一区域m 1，其中相对于轴向方向在一个方向上倾斜的多个流体动力压力产生槽1c周向地设置有第一区域m 1，第二区域m 2与所述第一区域m 并且其中相对于轴向在另一个方向上倾斜的多个流体动力压力产生槽1c周向地设置，并且设置在第一和第二区域m 1和m 2之间的环形平滑区域n。

    Hydrodynamic type porous oil-impregnated bearing
    5.
    发明授权
    Hydrodynamic type porous oil-impregnated bearing 失效
    流体动力型多孔含油轴承

    公开(公告)号：US06299356B1

    公开(公告)日：2001-10-09

    申请号：US09033651

    申请日：1998-03-03

    申请人： Kazuo Okamura ,  Yasuhiro Yamamoto ,  Isao Komori ,  Natsuhiko Mori ,  Makoto Shiranami

    发明人： Kazuo Okamura ,  Yasuhiro Yamamoto ,  Isao Komori ,  Natsuhiko Mori ,  Makoto Shiranami

    IPC分类号： F16C1702

    CPC分类号： F16C33/107 ,  F16C17/026 ,  F16C17/107 ,  F16C33/104 ,  F16C33/145 ,  Y10T29/49639

    摘要： The porous oil-impregnated bearing 1 comprises a bearing body 1a made of a porous material, and oil retained in the pores of the bearing body 1a by impregnation with lubricating oil or lubricating grease. The inner peripheral surface of the bearing body 1a is formed with a bearing surface 1b opposed to an outer peripheral surface of a shaft to be supported, with a bearing clearance defined therebetween. The bearing surface 1b has a first region m1 in which a plurality of hydrodynamic pressure generating grooves 1c inclined in one direction with respect to the axial direction are circumferentially disposed, a second region m2 which is axially spaced from said first region m1 and in which a plurality of hydrodynamic pressure generating grooves 1c inclined in the other direction with respect to the axial direction are circumferentially disposed, and an annular smooth region n disposed between the first and second regions m1 and m2.

    摘要翻译： 多孔含油轴承1包括由多孔材料制成的轴承体1a，通过浸渍润滑油或润滑脂而保留在轴承体1a的孔中的油。 轴承体1a的内周面形成有与要被支撑的轴的外周面相对的轴承面1b，轴承间隙限定在轴承面1b之间。 轴承面1b具有第一区域m1，其中沿轴向方向在一个方向上倾斜的多个流体动力学压力产生槽1c周向地设置有第一区域m1，与第一区域m1轴向间隔开的第二区域m2， 沿轴向方向在另一方向上倾斜的多个流体动力学压力产生槽1c周向地设置，并且设置在第一和第二区域m1和m2之间的环形平滑区域n。

    Spindle motor and rotating shaft supporting device for spindle motor
    6.
    发明授权
    Spindle motor and rotating shaft supporting device for spindle motor 有权
    主轴电机主轴电机和转轴支撑装置

    公开(公告)号：US6023114A

    公开(公告)日：2000-02-08

    申请号：US149437

    申请日：1998-09-08

    申请人： Natsuhiko Mori ,  Kazuo Okamura ,  Yasuhiro Yamamoto

    发明人： Natsuhiko Mori ,  Kazuo Okamura ,  Yasuhiro Yamamoto

    IPC分类号： F16C17/02 ,  F16C33/10 ,  H02K5/16 ,  H02K7/08

    CPC分类号： F16C17/026 ,  F16C33/104 ,  F16C33/107 ,  H02K5/1675 ,  F16C2370/12

    摘要： Bearing 1 comprises a porous bearing body 1a having a bearing surface 1b disposed to oppose an outer circumferential surface of the rotating shaft 3 via a bearing clearance 4, a lubricating oil or lubricating grease impregnated in the bearing body 1a, and hydrodynamic pressure generating grooves 1c formed on the bearing surface 1b of the bearing body 1a. The rotating shaft 3 is supported, without making contact with the bearing 1, by a hydrodynamic pressure oil film formed in the bearing clearance and the oil is circulated, via openings made in the surface of the bearing body 1a, between the inside of the bearing body 1a and the bearing clearance 4.

    摘要翻译： 轴承1包括多孔轴承体1a，其具有经由轴承间隙4与润滑油或浸渍在轴承体1a中的润滑油相对配置的轴承面1b，以及流体动力学压力产生槽1c 形成在轴承体1a的轴承面1b上。 旋转轴3通过形成在轴承间隙中的流体动力压力油膜而不与轴承1接触而被支撑，并且油通过在轴承体1a的表面上形成的开口在轴承内部循环 主体1a和轴承间隙4。

    Sintered oil-impregnated bearing and method for manufacturing same
    10.
    发明授权
    Sintered oil-impregnated bearing and method for manufacturing same 失效
    烧结油浸轴承及其制造方法

    公开(公告)号：US5704718A

    公开(公告)日：1998-01-06

    申请号：US680052

    申请日：1996-07-12

    申请人： Natsuhiko Mori ,  Yoshinori Ito ,  Toshihiko Tanaka ,  Yasuhiro Yamamoto

    发明人： Natsuhiko Mori ,  Yoshinori Ito ,  Toshihiko Tanaka ,  Yasuhiro Yamamoto

    IPC分类号： B22F3/11 ,  F16C33/04 ,  F16C33/10 ,  F16C17/02

    CPC分类号： F16C33/14 ,  B22F3/1109 ,  F16C33/104 ,  F16C33/1075 ,  F16C33/108 ,  F16C2240/46 ,  Y10S384/902

    摘要： Oil-impregnated sintered bearing has a bearing bore with axially extending grooves formed therein so that in a cross-section of the bearing bore concave and convex portions alternate in the circumferential direction, the surface porosity of the convex portions being preferably larger than that of the concave portions. Formed in part of an inner circumference of the bearing bore, is a bearing surface for supporting a rotary shaft, the rest of the inner circumference other than the bearing surface extending toward an end edge of the bearing bore at a taper angle of 2.degree. to 10 over a width of at least 1/3 or more of an axial width of the bearing surface.

    摘要翻译： 浸油烧结轴承具有形成有轴向延伸的槽的轴承孔，使得在轴承孔的横截面中，凹凸部在圆周方向上交替，凸部的表面孔隙率优选大于 凹部。 形成在轴承孔的内圆周的一部分中，是用于支撑旋转轴的支承表面，除了轴承表面以外的内圆周的其余部分朝向轴承孔的端部边缘以2°至 10以上至少+ E的宽度，1/3 + EE或更多的轴承表面的轴向宽度。