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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：US06712514B2
公开(公告)日：2004-03-30
申请号：US09925830
申请日：2001-08-09
IPC分类号： F16C3206
CPC分类号： F16C33/107 , F16C17/107 , F16C33/102 , F16C33/104
摘要： The squareness of the both end surfaces of the flange portion with respect to the outer circumference of the shaft portion of the shaft member is set to 0.001 mm or less respectively, and the flatness of both end surfaces of the flange portion is set to 0.001 mm or less respectively. The squareness of the end surface of the bearing member with respect to the inner circumference of the bearing member is set to 0.002 mm or less, and the flatness thereof is set to 0.0015 mm or less. The flatness of the inner surface of the bottom portion of the housing is set to 0.002 mm or less.
摘要翻译： 凸缘部的两端面相对于轴构件的轴部的外周的矩形度分别设定为0.001mm以下，凸缘部的两端面的平坦度设定为0.001mm 或更小。 轴承构件的端面相对于轴承构件的内周的矩形度设定为0.002mm以下，其平坦度设定为0.0015mm以下。 壳体底部的内表面的平坦度设定为0.002mm以下。
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公开(公告)号：US06981797B2
公开(公告)日：2006-01-03
申请号：US10753448
申请日：2004-01-09
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C33/102 , F16C33/104
摘要： The squareness of the both end surfaces of the flange portion with respect to the outer circumference of the shaft portion of the shaft member is set to 0.001 mm or less respectively, and the flatness of both end surfaces of the flange portion is set to 0.001 mm or less respectively. The squareness of the end surface of the bearing member with respect to the inner circumference of the bearing member is set to 0.002 mm or less, and the flatness thereof is set to 0.0015 mm or less. The flatness of the inner surface of the bottom portion of the housing is set to 0.002 mm or less.
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公开(公告)号：US06789320B2
公开(公告)日：2004-09-14
申请号：US10038661
申请日：2002-01-08
申请人： Natsuhiko Mori , Kazuo Okamura , Makoto Shiranami
发明人： Natsuhiko Mori , Kazuo Okamura , Makoto Shiranami
IPC分类号： B21D5310
CPC分类号： F16C33/104 , F16C17/026 , F16C33/145 , F16C2204/10 , F16C2220/20 , F16C2370/12 , Y10S384/902 , Y10T29/49639
摘要： There is provided a sintered oil retaining bearing that secures the stability of an oil film and achieves high running accuracy through management to exclude a variation in the size of surface openings in the bearing surface, particularly the presence of large holes, while making use of such advantages as the mass productivity, low noise and low cost features of sintered oil retaining bearings. In a sintered oil retaining bearing 11 having a bearing body 19 that is composed of a porous body formed of a sintered metal, that is formed with a bearing surface 18 opposed to the outer peripheral surface of a rotary shaft 1 through a bearing clearance and that is impregnated with lubricating oil or lubricating grease, it is arranged that surface openings in said bearing surface 18 are substantially uniform in size and that when the area of a single such surface opening is converted into the area of a circle, the diameter of such circle does not exceed 0.05 mm.
摘要翻译： 提供一种烧结保油轴承，其通过管理确保油膜的稳定性并实现高运行精度，以排除轴承表面中的表面开口尺寸的变化，特别是存在大孔，同时利用 烧结油保持轴承的质量生产率，低噪音和低成本特征的优点。在具有由烧结金属形成的多孔体构成的轴承体19的烧结保油轴承11中，其形成有承载面 18通过轴承间隙与旋转轴1的外周表面相对并且浸渍有润滑油或润滑脂的情况下，布置成所述支承表面18中的表面开口的尺寸基本均匀，并且当面积 单个这样的表面开口被转换成圆的区域，这种圆的直径不超过0.05mm。
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10.发明授权公开(公告)号：US06357920B1
公开(公告)日：2002-03-19
申请号：US09504718
申请日：2000-02-16
申请人： Natsuhiko Mori , Kazuo Okamura , Makoto Shiranami
发明人： Natsuhiko Mori , Kazuo Okamura , Makoto Shiranami
IPC分类号： F16C3206
CPC分类号： F16C33/104 , F16C17/026 , F16C33/145 , F16C2204/10 , F16C2220/20 , F16C2370/12 , Y10S384/902 , Y10T29/49639
摘要： There is provided a sintered oil retaining bearing that secures the stability of an oil film and achieves high running accuracy through management to exclude a variation in the size of surface openings in the bearing surface, particularly the presence of large holes, while making use of such advantages as the mass productivity, low noise and low cost features of sintered oil retaining bearings. In a sintered oil retaining bearing 11 having a bearing body 19 that is composed of a porous body formed of a sintered metal, that is formed with a bearing surface 18 opposed to the outer peripheral surface of a rotary shaft 1 through a bearing clearance and that is impregnated with lubricating oil or lubricating grease, it is arranged that surface openings in said bearing surface 18 are substantially uniform in size and that when the area of a single such surface opening is converted into the area of a circle, the diameter of such circle does not exceed 0.05 mm.
摘要翻译： 提供一种烧结保油轴承，其通过管理确保油膜的稳定性并实现高运行精度，以排除轴承表面中的表面开口尺寸的变化，特别是存在大孔，同时利用 烧结油保持轴承的质量生产率，低噪音和低成本特征的优点。在具有由烧结金属形成的多孔体构成的轴承体19的烧结保油轴承11中，其形成有承载面 18通过轴承间隙与旋转轴1的外周表面相对并且浸渍有润滑油或润滑脂的情况下，布置成所述支承表面18中的表面开口的尺寸基本均匀，并且当面积 单个这样的表面开口被转换成圆的区域，这种圆的直径不超过0.05mm。
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