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1. 发明专利

JP2011027150A Fluid bearing device 审中-公开
标题翻译：流体轴承装置
公开(公告)号：JP2011027150A
公开(公告)日：2011-02-10
申请号：JP2009172014
申请日：2009-07-23
申请人： Ntn Corp , Ntn株式会社
发明人： HARADA KAZUNORI , KURIMURA TETSUYA , KOMORI ISAO
IPC分类号： F16C33/74 , F16C17/10 , F16C33/12
摘要： PROBLEM TO BE SOLVED: To facilitate fixing of a seal member with respect to a bearing member, while securing desired sealing performance. SOLUTION: In a fluid bearing device 1, the seal member 9 is fixed to a bearing sleeve 8 as a bearing member. An inner peripheral face 9b2 of a cylindrical second seal part 9b constituting the seal member 9 is provided with a recess part 12a, while an outer peripheral face 8d of the bearing sleeve 8 is provided with a projection part 12b. The seal member 9 is fitted and fixed to an outer periphery of the bearing sleeve 8 so that the recess part 12a formed thereto is fitted to the projection part 12b formed to the bearing sleeve 8. Thereby, an irregularly fitted part 12 axially fitting the seal member 9 to the bearing sleeve 8 is formed therebetween. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了便于密封构件相对于轴承构件的固定，同时确保期望的密封性能。解决方案：在流体轴承装置1中，密封构件9固定到作为轴承构件的轴承套筒8上。构成密封构件9的圆筒状的第二密封部9b的内周面9b2设置有凹部12a，而轴承套筒8的外周面8d设置有突出部12b。密封构件9被装配并固定到轴承套8的外周，使得形成在其上的凹部12a与形成于轴承套8的突出部12b嵌合。由此，不规则配合的部分12轴向地装配密封件构件9形成在轴承套8之间。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010127386A Fluid dynamic-pressure bearing device 有权
标题翻译：流体动力压力轴承装置
公开(公告)号：JP2010127386A
公开(公告)日：2010-06-10
申请号：JP2008302779
申请日：2008-11-27
申请人： Ntn Corp , Ntn株式会社
发明人： KURIMURA TETSUYA , KOMORI ISAO
IPC分类号： F16C17/10 , F16C27/00
摘要： PROBLEM TO BE SOLVED: To suppress a backlash of a bearing member by preventing the plastic deformation of a member constructing a pivot bearing in the fluid dynamic-pressure bearing device supporting an axial member in thrust direction via the pivot bearing.
SOLUTION: On a thrust abutment T (housing inner bottom surface part 7b1) excluding a supporting part (convex 7b11), a stopper P not in contact with the axial member 2 during driving is provided. When the axial member 2 is pressed to the thrust abutment T, the convex 7b11 of the thrust abutment T is elastically deformed and the axial member 2 contacts the stopper P. Since the thrust abutment T can bear a load from the axial member 2 in the stopper P, the surface pressure on the thrust abutment T can be reduced to prevent the plastic deformation of the thrust abutment T.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过防止在通过枢转轴承支撑推力方向的轴向构件的流体动压轴承装置中构成枢转轴承的构件的塑性变形来抑制轴承构件的间隙。解决方案：在除了支撑部分（凸起部分7b11）之外的推力支座T（壳体内底面部分7b1）上设置有在驱动期间不与轴向部件2接触的止动件P. 当将轴向构件2按压到推力支座T上时，推力支座T的凸起部7b11弹性变形，并且轴向构件2与止动件P接触。由于推力支座T能承受来自轴向构件2的载荷止动器P，可以减小推力支座T上的表面压力，以防止推力支座T的塑性变形。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2010065843A Dynamic pressure bearing device 有权
标题翻译：动态压力轴承装置
公开(公告)号：JP2010065843A
公开(公告)日：2010-03-25
申请号：JP2009187180
申请日：2009-08-12
申请人： Ntn Corp , Ntn株式会社
发明人： SHIMIZU MASAJI , KOMORI ISAO
IPC分类号： F16C17/10 , F16C33/12 , F16C33/20 , H02K5/16 , H02K7/08
摘要： PROBLEM TO BE SOLVED: To provide a dynamic pressure bearing device that is more inexpensive owing to reduced manufacturing costs of a bearing sleeve having dynamic pressure grooves.
SOLUTION: The bearing sleeve 8 includes a body 81 cylindrically formed of a porous body of sintered metal, and a resin layer 82 formed from an inner periphery to a lower end face of the body 81. The dynamic pressure grooves 8a1, 8a2 and 8c1 are formed in bearing surfaces of the bearing sleeve 8 defined by the resin layer 82. The dynamic pressure grooves 8a1, 8a2 and 8c1 are molded as the resin layer 82 is molded.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种动态压力轴承装置，由于具有动态压力槽的轴承套筒的制造成本降低而更便宜。解决方案：轴承套8包括由烧结金属多孔体圆柱形形成的主体81和由主体81的内周到下端面形成的树脂层82.动压槽8a1,8a2 和8c1形成在由树脂层82限定的轴承套筒8的轴承表面中。在模制树脂层82时，模制动压槽8a1,8a2和8c1。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2009024844A Dynamic-pressure bearing device 有权
标题翻译：动态压力轴承装置
公开(公告)号：JP2009024844A
公开(公告)日：2009-02-05
申请号：JP2007191150
申请日：2007-07-23
申请人： Ntn Corp , Ntn株式会社
发明人： TODA MASAAKI , KOMORI ISAO , KURIMURA TETSUYA
IPC分类号： F16C17/08 , F16C17/10 , F16C35/067
CPC分类号： F16C17/08 , F16C17/107 , F16C33/107 , F16C33/74 , F16C2370/12
摘要： PROBLEM TO BE SOLVED: To avoid a deterioration in assembly precision between a shaft and a flange, in a dynamic-pressure bearing device in which a shaft member has the shaft and the flange, and one end of the shaft member is pivotally supported. SOLUTION: The dynamic-pressure bearing device 1 comprises the shaft member 2 and a bearing sleeve 8 which is arranged at the external periphery of the shaft member 2, and relatively rotates with respect to the shaft member 2. The shaft member 2 has the shaft 21, the flange 22 and a sliding part 23. The flange 22 is engaged with the lower-side end face 8b of the bearing sleeve 8 as a regulation part in the axial direction, and regulates the fall-off of the shaft member 2. The sliding part 23 contacts the bottom of a housing 7 as a thrust receiving part, and supports a thrust load. The flange 22 and the sliding part 23 are formed to be integrated with each other. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了避免轴和凸缘之间的组装精度的降低，在轴构件具有轴和凸缘的动压轴承装置中，轴构件的一端可枢转地支持的。解决方案：动压轴承装置1包括轴构件2和布置在轴构件2的外周处并相对于轴构件2相对旋转的轴承套8。轴构件2 具有轴21，凸缘22和滑动部23.凸缘22与作为轴向的调节部的轴承套筒8的下侧端面8b卡合，并且调节轴的脱落滑动部23与作为推力承受部的壳体7的底部抵接，支承推力负荷。凸缘22和滑动部23形成为一体。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008261396A Fluid bearing device and its manufacturing method 有权
标题翻译：流体轴承装置及其制造方法
公开(公告)号：JP2008261396A
公开(公告)日：2008-10-30
申请号：JP2007103798
申请日：2007-04-11
申请人： Ntn Corp , Ntn株式会社
发明人： KOMORI ISAO
IPC分类号： F16C17/10 , F16C33/14 , F16C35/02 , F16C43/02
摘要： PROBLEM TO BE SOLVED: To provide a fluid bearing device in which a bearing span of a radial bearing section can be extended, and a bearing sleeve is installed into a housing easily and highly accurately.
SOLUTION: A fluid bearing device 1 comprises multiple, here, two bearing sleeves 81, 82 arranged in the axial direction, a shaft member 2 inserted in an inner periphery of the bearing sleeve, and a housing 7 housing the respective bearing sleeves 81, 82. On the inner peripheral surfaces of the bearing sleeves 81, 82, radial bearing surfaces A1, A2 are formed, respectively which form bearing clearances with a peripheral surface 2a1 of the shaft member 2. An adjacent first bearing sleeve 81 and a second bearing sleeve 82 are fixed in an engaging member 83 engaged in an approaching direction for the both, and the radial bearing surfaces A1, A2 of the both bearing sleeves 81, 82 are formed by moulding.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种流体轴承装置，其中径向轴承部分的轴承跨度可以延伸，并且轴承套筒容易且高精度地安装到壳体中。解决方案：流体轴承装置1包括多个，这里是沿轴向布置的两个轴承套管81,82，插入在轴承套筒的内周中的轴构件2和容纳相应的轴承套筒的壳体7 在轴承套81,82的内周面上分别形成有与轴构件2的周面2a1形成轴承间隙的径向轴承面A1，A2。相邻的第一轴承套81和第二轴承套筒82固定在沿两个接合方向接合的接合构件83中，并且通过模制形成两个轴承套筒81,82的径向支承面A1，A2。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008185140A Dynamic pressure bearing device 审中-公开
标题翻译：动态压力轴承装置
公开(公告)号：JP2008185140A
公开(公告)日：2008-08-14
申请号：JP2007019694
申请日：2007-01-30
申请人： Ntn Corp , Ntn株式会社
发明人： TODA MASAAKI , KOMORI ISAO
IPC分类号： F16C33/14 , F16C17/10 , F16C35/02 , H02K5/16 , H02K7/08
摘要： PROBLEM TO BE SOLVED: To provide a dynamic pressure bearing device which excels in workability and has a housing or a hub forming high-precision thrust dynamic pressure grooves.
SOLUTION: In the dynamic pressure bearing device, the periphery of a housing 71 is comprised of a dynamic pressure generation member 712 and a peripheral body 711 which are separately formed, and the two parts can be formed from different materials by different processing methods. Since the peripheral body does not face the thrust bearing clearance and is not required to have a superior wear resistance property, the moldability of the peripheral body 711 can be improved by forming it with soft metal forging. Moreover, the dynamic pressure generation member 712 can be formed in a simple shape and can be machined comparatively easily even with a hard metal, and the wear resistance property can be improved without causing cost increases or machining time lengthening.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种动态压力承载装置，其具有可加工性优异并且具有形成高精度推力动压槽的壳体或轮毂。解决方案：在动压轴承装置中，壳体71的周边由分别形成的动压产生构件712和周边体711构成，并且两部分可以通过不同的加工由不同的材料形成方法。由于周缘体不面向推力轴承间隙，并且不需要具有优异的耐磨性能，因此可以通过用软金属锻造形成周边体711的成型性。此外，动压生成部件712可以形成为简单的形状，并且即使使用硬质金属也能够相对容易地加工，并且可以提高耐磨性，而不会导致成本增加或加工时间延长。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2008164022A Dynamic pressure bearing device and its manufacturing method 有权
标题翻译：动态压力轴承装置及其制造方法
公开(公告)号：JP2008164022A
公开(公告)日：2008-07-17
申请号：JP2006352963
申请日：2006-12-27
申请人： Ntn Corp , Ntn株式会社
发明人： KOMORI ISAO
IPC分类号： F16C17/10
摘要： PROBLEM TO BE SOLVED: To easily and accurately manage an axial relative position between a bearing sleeve and a housing. SOLUTION: An intermediate member 9 exists between an inner peripheral face 7a1 of the housing 7 and an outer peripheral face 8d of the bearing sleeve 8. The intermediate member 9 is no contact with on the bearing sleeve 8 in the axial direction, and the intermediate member 9 keeps contact with the housing 7 in the axial direction. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了容易且准确地管理轴承套和轴承座之间的轴向相对位置。解决方案：中间构件9存在于壳体7的内周面7a1和轴承套8的外周面8d之间。中间构件9在轴向方向上不与轴承套筒8接触，并且中间构件9在轴向方向上与壳体7保持接触。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2008138846A Fluid bearing device 审中-公开
标题翻译：流体轴承装置
公开(公告)号：JP2008138846A
公开(公告)日：2008-06-19
申请号：JP2006328468
申请日：2006-12-05
申请人： Ntn Corp , Ntn株式会社
发明人： KOMORI ISAO , YAMAMOTO YASUHIRO
IPC分类号： F16C17/02 , F16C33/24
摘要： PROBLEM TO BE SOLVED: To provide a fluid bearing device capable of avoiding inconvenience on the bearing function caused by a temperature change in use, while reducing torque. SOLUTION: A shaft part 2 is composed of a large diameter part 2a and a small diameter part 2b, and the small diameter part 2b is formed between the large diameter parts 2a and 2a separately formed in the axial direction. The small diameter part 2b is composed of a small diameter part body 11 integrally formed with the large diameter part 2a of the shaft part 2, and a different material part 12 formed around the small diameter part body 11 and including an outer peripheral surface 2b1. Here, the different material part 12 is made of a material different in a linear expansion coefficient from the large diameter part 2a, and the outer peripheral surface 2b1 of the small diameter part 2b is opposed to an area between a dynamic pressure groove 8a1-forming area and a dynamic pressure groove 8a2-forming area of a sleeve part 8. In this embodiment, the different material part 12 is formed over the whole periphery out of a material (such as a resin material) having a linear expansion coefficient higher than the large diameter part 2a. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种流体轴承装置，其能够避免由于使用温度变化引起的轴承功能的不便，同时减小扭矩。解决方案：轴部分2由大直径部分2a和小直径部分2b组成，小直径部分2b形成在沿轴向方向分开形成的大直径部分2a和2a之间。小径部2b由与轴部2的大直径部2a一体形成的小径部体11和形成在小直径部主体11周围的包括外周面2b1的不同材料部12构成。这里，不同材料部分12由与大直径部分2a的线膨胀系数不同的材料制成，并且小直径部分2b的外周表面2b1与动压槽8a1形成之间的区域相对区域和套筒部8的动压槽8a2形成区域。在本实施例中，不同材料部分12在线膨胀系数高于大直径部分2a。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2008075687A Fluid bearing device 审中-公开
标题翻译：流体轴承装置
公开(公告)号：JP2008075687A
公开(公告)日：2008-04-03
申请号：JP2006252918
申请日：2006-09-19
申请人： Ntn Corp , Ntn株式会社
发明人： KURIMURA TETSUYA , KOMORI ISAO , BITO YOSHIHIKO
IPC分类号： F16C35/02 , F16C17/10
摘要： PROBLEM TO BE SOLVED: To provide a fluid bearing device provided with a hub having a metal part, which fixes a shaft member accurately without deforming the metal part. SOLUTION: A recessed part 13a1 is formed on an inner circumferential surface 13a of a core metal 13 (the metal part) of the fluid bearing device. Thereby, when the core metal 13 is pressed in the shaft member 2, a press-in area of a fitting surface is narrowed, and press-in resistance is reduced. The core metal 13 is pressed in the shaft member 2, therefore, without deforming the core metal 13, and both can be fixed accurately. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种设置有具有金属部件的轮毂的流体轴承装置，其在不使金属部件变形的情况下精确地固定轴构件。解决方案：凹部13a1形成在流体轴承装置的芯金属13（金属部件）的内周面13a上。因此，当芯体金属13被按压在轴构件2中时，装配表面的压入区域变窄，并且压入阻力减小。核心金属13被压在轴构件2中，因此，不使芯金属13变形，并且两者都可以被精确地固定。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007263228A Dynamic pressure bearing device 审中-公开
标题翻译：动态压力轴承装置
公开(公告)号：JP2007263228A
公开(公告)日：2007-10-11
申请号：JP2006088798
申请日：2006-03-28
申请人： Ntn Corp , Ntn株式会社
发明人： ITO KENJI , KOMORI ISAO
IPC分类号： F16C17/10 , F16C33/10
CPC分类号： F16C17/107 , F16C33/107 , F16C2370/12
摘要： PROBLEM TO BE SOLVED: To form a dynamic pressure generating part having high molding accuracy at low cost, in this kind of dynamic pressure bearing device.
SOLUTION: A rotational member 2 has a shaft part 9 and a retaining member 10 as a thrust member disposed to one end of the shaft part 9. In a part of annular area of a lower end face 10a1 of a disc part 10a constituting the retaining member 10, an area, where a plurality of dynamic pressure grooves 10a2 and partition parts 10a3 formed between the plurality of dynamic grooves 10a2 so as to partition between the plurality of dynamic pressure grooves 10a2 are arranged in a spiral manner, is formed as a dynamic pressure generating part. The arranging area of the dynamic grooves 10a2 is opposed to an upper face 8a of the housing part 8, and forms a thrust bearing clearance of a thrust bearing part T between the arranging area and an upper end face 8a in rotating of the shaft part 9. The arranging area of dynamic pressure grooves 10a2 is formed on a lower end face 10a1 of the retaining member 10 by press working.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在这种动态压力承载装置中，以低成本形成具有高成型精度的动压产生部件。解决方案：旋转构件2具有轴部9和作为设置在轴部9的一端的推力构件的保持构件10.在盘部10a的下端面10a1的环状区域的一部分构成保持构件10的区域，形成有多个动压槽10a2和形成在多个动力槽10a2之间以分隔在多个动压槽10a2之间的分隔部10a3以螺旋方式布置的区域作为动压产生部。动力槽10a2的配置区域与壳体部8的上表面8a相对，并且在轴部9的旋转中在配置区域和上端面8a之间形成推力轴承部T的推力轴承间隙动压槽10a2的排列区域通过冲压加工形成在保持构件10的下端面10a1上。版权所有（C）2008，JPO＆INPIT

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