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公开(公告)号：US06513980B2
公开(公告)日：2003-02-04
申请号：US09921704
申请日：2001-08-06
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.
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公开(公告)号：US06533460B2
公开(公告)日：2003-03-18
申请号：US10022399
申请日：2001-12-20
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.
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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
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。
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公开(公告)号：US07059052B2
公开(公告)日：2006-06-13
申请号：US09921602
申请日：2001-08-06
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。
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公开(公告)号：US06299356B1
公开(公告)日：2001-10-09
申请号：US09033651
申请日：1998-03-03
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。
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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
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。
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公开(公告)号：US08926183B2
公开(公告)日：2015-01-06
申请号：US14002037
申请日：2012-02-28
申请人： Hiroyuki Noda , Natsuhiko Mori , Tetsuya Kurimura , Isao Komori , Masaharu Hori , Kimihiko Bito , Toshiyuki Mizutani
发明人： Hiroyuki Noda , Natsuhiko Mori , Tetsuya Kurimura , Isao Komori , Masaharu Hori , Kimihiko Bito , Toshiyuki Mizutani
CPC分类号： F16C32/0633 , F16C17/026 , F16C17/107 , F16C33/107 , F16C33/14 , F16C43/02 , F16C2220/20 , F16C2220/40 , F16C2220/44 , F16C2220/70 , F16C2223/02 , F16C2226/12 , F16C2226/52 , F16C2240/40 , F16C2370/12 , G11B19/2036
摘要： An inner peripheral surface and a lower end surface of a bearing sleeve made of a sintered metal are each formed into a smooth cylindrical surface or a flat surface that does not have a dynamic pressure generating portion. Thus, a step of forming the dynamic pressure generating portion can be omitted from a manufacturing step of the bearing sleeve, and cost of dies can be markedly reduced. Further, the inner peripheral surface of the bearing sleeve is formed into the smooth cylindrical surface, and hence a radial dynamic pressure generating portion is formed on an outer peripheral surface of a shaft member. However, the outer peripheral surface of the shaft portion is accessible to tools, and hence the radial dynamic pressure generating portion can be formed easily with high accuracy. As a result, accuracy of a radial bearing gap is enhanced so that a bearing rigidity is enhanced.
摘要翻译： 由烧结金属制成的轴承套的内周面和下端面分别形成为没有动压产生部的光滑圆柱面或平面。 因此，可以从轴承套筒的制造步骤中省略形成动压产生部的步骤，并且可以显着降低模具的成本。 此外，轴承套筒的内周面形成为平滑的圆筒形表面，因此在轴构件的外周面上形成径向动压产生部。 然而，轴部的外周面能够被工具接近，因此能够容易地高精度地形成径向动压产生部。 结果，径向轴承间隙的精度提高，从而提高了轴承刚度。
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公开(公告)号：US08931175B2
公开(公告)日：2015-01-13
申请号：US13435915
申请日：2012-03-30
申请人： Natsuhiko Mori , Nobuyoshi Yamashita , Fuminori Satoji , Isao Komori , Toshiyuki Mizutani , Masafumi Okuma , Kenichi Mitani
发明人： Natsuhiko Mori , Nobuyoshi Yamashita , Fuminori Satoji , Isao Komori , Toshiyuki Mizutani , Masafumi Okuma , Kenichi Mitani
CPC分类号： F16C33/107 , F16C17/026 , F16C17/107 , F16C2370/12 , Y10T29/49025 , Y10T29/49705
摘要： It is an object of the present invention to provide a bearing member having a highly accurate dynamic pressure generating portion stably at low cost. Dynamic pressure grooves (8a1) and (8a2) are formed as the dynamic pressure generating portions on an inner circumferential surface of the electroforming portion (10) by an electroforming process, and injection molding is performed by using a resin while inserting the electroforming portion (10), thereby forming a bearing member (8). A shaft member (2) is inserted into an inner circumference of the bearing member.
摘要翻译： 本发明的目的是提供一种以低成本稳定地具有高精度的动压产生部的轴承部件。 在电铸部（10）的内周面通过电铸工序形成作为动压产生部的动压槽（8a1）和（8a2），并且在插入电铸部的同时使用树脂进行注塑成型 10），从而形成轴承部件（8）。 轴构件（2）插入到轴承构件的内周中。
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公开(公告)号：US20130336604A1
公开(公告)日：2013-12-19
申请号：US14002037
申请日：2012-02-28
申请人： Hiroyuki Noda , Natsuhiko Mori , Tetsuya Kurimura , Isao Komori , Masaharu Hori , Kimihiko Bito , Toshiyuki Mizutani
发明人： Hiroyuki Noda , Natsuhiko Mori , Tetsuya Kurimura , Isao Komori , Masaharu Hori , Kimihiko Bito , Toshiyuki Mizutani
IPC分类号： F16C32/06
CPC分类号： F16C32/0633 , F16C17/026 , F16C17/107 , F16C33/107 , F16C33/14 , F16C43/02 , F16C2220/20 , F16C2220/40 , F16C2220/44 , F16C2220/70 , F16C2223/02 , F16C2226/12 , F16C2226/52 , F16C2240/40 , F16C2370/12 , G11B19/2036
摘要： An inner peripheral surface and a lower end surface of a bearing sleeve made of a sintered metal are each formed into a smooth cylindrical surface or a flat surface that does not have a dynamic pressure generating portion. Thus, a step of forming the dynamic pressure generating portion can be omitted from a manufacturing step of the bearing sleeve, and cost of dies can be markedly reduced. Further, the inner peripheral surface of the bearing sleeve is formed into the smooth cylindrical surface, and hence a radial dynamic pressure generating portion is formed on an outer peripheral surface of a shaft member. However, the outer peripheral surface of the shaft portion is accessible to tools, and hence the radial dynamic pressure generating portion can be formed easily with high accuracy. As a result, accuracy of a radial bearing gap is enhanced so that a bearing rigidity is enhanced.
摘要翻译： 由烧结金属制成的轴承套的内周面和下端面分别形成为没有动压产生部的光滑圆柱面或平面。 因此，可以从轴承套筒的制造步骤中省略形成动压产生部的步骤，并且可以显着降低模具的成本。 此外，轴承套筒的内周面形成为平滑的圆筒形表面，因此在轴构件的外周面上形成径向动压产生部。 然而，轴部的外周面能够被工具接近，因此能够容易地高精度地形成径向动压产生部。 结果，径向轴承间隙的精度提高，从而提高了轴承刚度。
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公开(公告)号：US20080212908A1
公开(公告)日：2008-09-04
申请号：US11795410
申请日：2006-05-15
申请人： Natsuhiko Mori , Nobuyoshi Yamashita , Fuminori Satoji , Isao Komori , Toshiyuki Mizutani , Masafumi Okuma , Kenichi Mitani
发明人： Natsuhiko Mori , Nobuyoshi Yamashita , Fuminori Satoji , Isao Komori , Toshiyuki Mizutani , Masafumi Okuma , Kenichi Mitani
CPC分类号： F16C33/107 , F16C17/026 , F16C17/107 , F16C2370/12 , Y10T29/49025 , Y10T29/49705
摘要： It is an object of the present invention to provide a bearing member having a highly accurate dynamic pressure generating portion stably at low cost. Dynamic pressure grooves (8a1) and (8a2) are formed as the dynamic pressure generating portions on an inner circumferential surface of the electroforming portion (10) by an electroforming process, and injection molding is performed by using a resin while inserting the electroforming portion (10), thereby forming a bearing member (8). A shaft member (2) is inserted into an inner circumference of the bearing member.
摘要翻译： 本发明的目的是提供一种以低成本稳定地具有高精度的动压产生部的轴承部件。 在电铸部（10）的内周面通过电铸工序形成作为动压产生部的动压槽（8 a 1）和（8 a 2），并且通过使用树脂进行注塑成型，同时插入 电铸部（10），从而形成轴承部件（8）。 轴构件（2）插入到轴承构件的内周中。
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