-
公开(公告)号：US20140072250A1
公开(公告)日：2014-03-13
申请号：US14025311
申请日：2013-09-12
申请人： Aktiebolaget SKF
CPC分类号： F16C32/0637 , F16C19/26 , F16C19/527 , F16C27/045 , F16C33/72 , F16C35/077 , F16C2202/40 , F16C2233/00 , F16C2360/46
摘要： A bearing assembly includes a bearing formed to at least radially guide a shaft, a seat for the bearing, an annular gap around the bearing between the bearing and the seat that allows the bearing to undergo a movement perpendicular to an axis of the bearing, a magnetorheological fluid in the gap and a magnetic field source configured to subject the magnetorheological fluid to a magnetic field. Also, a method of controlling a strength of the magnetic field generated by the magnetic field source to control a viscosity of the magnetorheological fluid and affect an operating condition of the bearing assembly.
摘要翻译： 轴承组件包括轴承组件，该轴承形成为至少径向地引导轴，用于轴承的座，围绕轴承的轴承和座之间的环形间隙，允许轴承经受垂直于轴承轴线的运动， 间隙中的磁流变流体和构造成使磁流变流体受到磁场的磁场源。 另外，控制由磁场源产生的磁场的强度以控制磁流变流体的粘度并影响轴承组件的运行状态的方法。
-
公开(公告)号：US4809354A
公开(公告)日：1989-02-28
申请号：US130985
申请日：1987-12-10
申请人： Sousuke Kawashima
发明人： Sousuke Kawashima
CPC分类号： F16C32/064 , F16C29/025 , F16C32/0637 , F16C32/0659 , F16C33/102 , F16C33/1035 , F16C33/746
摘要： A hydrostatic bearing system utilizing ferromagnetic fluid exclusively as working fluid including that used for sealing for preventing the ferromagnetic fluid itself from escaping outside the bearing. In order to accomplish the objects and function, the hydrostatic bearing system proposed here comprises, in addition to ordinary parts or components used in the conventional type, a fluid chamber for containing the ferromagnetic fluid as a working fluid, a circulating passage, at least a recovery groove for collecting the fluid squeezed out of the fluid chamber, a magnetic seal to prevent the fluid from escaping and at least an impelling device to forcibly deliver the ferromagnetic fluid at a predetermined pressure and flow rate. The impelling device can be constructed utilizing a shifting magnetic field, or multilayered rings fabricated of piezo-electric components, or of impelling cylinders having axially lengthenee or reduced in length.
摘要翻译： 一种使用铁磁流体专用作工作流体的静压轴承系统，包括用于防止铁磁流体本身从轴承外部逸出的密封。 为了实现目的和功能，这里提出的静压轴承系统除了常规类型中使用的普通零件或部件之外还包括用于将铁磁流体作为工作流体的流体室，循环通道，至少一个 用于收集从流体室挤出的流体的回收槽，用于防止流体逸出的磁性密封件和至少一个推进装置以预定的压力和流量强制地输送铁磁流体。 推动装置可以利用移动磁场或由压电部件制成的多层环或具有轴向长度或减小长度的推进气缸构成。
-
公开(公告)号：US4475033A
公开(公告)日：1984-10-02
申请号：US356042
申请日：1982-03-08
CPC分类号： F16C29/025 , F16C32/0637 , G02B6/3803 , G02B7/005
摘要： A device for accurately positioning an optical system element uses an array of electromagnets to alter fluid pressure distribution in a mass of ferromagnetic fluid. The pressure redistribution causes movement of an optical system element positioned adjacent to the ferromagnetic fluid. The invention is concerned with particular arrangements of fluid and energizing electromagnets to ensure combined rectilinear and angular movement of the optical system elements. The device has neither the complexity nor the delicacy of known structures used for moving optical system elements.
摘要翻译： 用于精确定位光学系统元件的装置使用电磁体阵列来改变大量铁磁流体中的流体压力分布。 压力再分配导致邻近铁磁流体定位的光学系统元件的移动。 本发明涉及流体和激励电磁体的特定布置，以确保光学系统元件的组合直线和角运动。 该设备既不具有复杂性，也不具有用于移动光学系统元件的已知结构的细节。
-
公开(公告)号：US5052823A
公开(公告)日：1991-10-01
申请号：US540149
申请日：1990-06-19
申请人： Rune Adolfsson , Goran Lindsten
发明人： Rune Adolfsson , Goran Lindsten
CPC分类号： F16C37/002 , F16C32/0637 , F16C33/1035
摘要： A bearing bushing incorporating a sleeve (1) of magnetizable material forming the sliding surface of the bearing, a shaft (2) mounted in said sleeve (1) and a lubricant in the form of a magnetic fluid (3) between the sliding surface of the sleeve (1) and the shaft (2), whereby the sleeve (1) is magnetized in an axial direction. For causing a hydrodynamic lubrication and an increased cooling effect the sleeve (1) has a number of radial holes (4) through which the magnetic fluid (3) may pass to the other side of the sleeve (1), and which, by the axial magnetic field about the sleeve (1), is given a circulating motion along the inner and outer side of the sleeve.
-
公开(公告)号：US4717266A
公开(公告)日：1988-01-05
申请号：US873409
申请日：1986-06-12
CPC分类号： F16C33/10 , F16C32/04 , F16C32/0637 , F16C33/1035
摘要： A low friction bearing arrangement includes first and second poles of magnetically permeable material which define first and second pole surfaces which are spaced apart. The first and second poles also define first and second side surfaces, respectively, which are aligned. A quantity of ferrofluid, positioned intermediate the first and second pole surfaces and adjacent the first and second side surfaces, is held by means of a fringing magnetic flux between the first and second side surfaces at a level which extends beyond the side surfaces. A rotatable shaft of nonmagnetic material is supported on the quantity of ferrofluid and is held out of contact with the side surfaces thereby, such that the shaft may be freely rotated.
摘要翻译： 低摩擦轴承装置包括导磁材料的第一和第二极，其限定间隔开的第一和第二极表面。 第一和第二极还分别限定对准的第一和第二侧表面。 位于第一和第二极表面之间并且邻近第一和第二侧表面的一定数量的铁磁流体通过在第一和第二侧表面之间的边缘磁通量以超过侧表面的水平被保持。 非磁性材料的可旋转轴被支撑在铁磁流体的量上，并且与侧面保持不接触，从而轴可以自由旋转。
-
公开(公告)号：US3918773A
公开(公告)日：1975-11-11
申请号：US43143674
申请日：1974-01-07
申请人： LITTON SYSTEMS INC
发明人： TUFFIAS ROBERT H
CPC分类号： F16C39/04 , F16C17/047 , F16C32/0637 , F16C33/1035 , F16C33/106
摘要： A self-contained, fluid bearing assembly for the support of a load is described. The fluid is a ferro-hydromagnetically responsive fluid disposed between the two members joined by the bearing assembly. The oppositely disposed respective faces of these members are described having a special construction so that upon application of a rotating magnetic field to the fluid, the bearing achieves load sustaining capabilities and self-contained fluidic characteristics.
摘要翻译： 描述了用于负载的支撑的独立的流体轴承组件。 流体是设置在由轴承组件连接的两个构件之间的铁 - 液体响应性流体。 这些构件的相对设置的各个面被描述为具有特殊的结构，使得在向流体施加旋转磁场时，轴承实现负载维持能力和独立的流体特性。
-
公开(公告)号：US3612630A
公开(公告)日：1971-10-12
申请号：US3612630D
申请日：1970-01-23
申请人： FERROFLUIDICS CORP
发明人： ROSENSWEIG RONALD E
CPC分类号： F16J15/43 , F16C32/0402 , F16C32/0408 , F16C32/0637 , F16C32/0666 , F16C33/1035
摘要： A bearing wherein a fluid bearing pad is sealed between two bearing surfaces, such as between an inner race and an outer race. A permanent magnet and permeable pole pieces define a magnetic circuit which circuit provides for the flow of magnetic flux across at least one of the bearing surfaces. A magnetic gap on the bearing surface through which the magnetic flux flows defines a predetermined continuous peripheral pattern. The magnetic flux is concentrated at the gap and a magnetic fluid is captured therein. The other bearing surface engages the magnetic fluid in sealing relationship and the fluid-bearing pad is sealed between the bearing surfaces and within the periphery defined by the magnetic fluid seal.
-
公开(公告)号：US20190162231A1
公开(公告)日：2019-05-30
申请号：US15827841
申请日：2017-11-30
IPC分类号： F16C32/06
CPC分类号： F16C32/064 , F16C32/0637 , F16C32/0655 , F16C32/0659 , F16C2210/08 , F16C2380/16
摘要： A hydrostatic bearing assembly or structure for an x-ray tube and associated process for manufacturing and operating the bearing assembly is provided to reduce and potentially eliminate wear from landing or takeoff of the rotating component of the bearing assembly on the non-rotating component. The shaft and sleeve are separated by a gap in which an amount of a liquid metal is placed in order to provide the sleeve with the ability to rotate about the shaft, or vice versa. The non-rotating component of the hydrostatic bearing assembly is formed with a number of fluid channels extending through the component and in communication with the gap. The liquid metal is pumped into and out of the gap via the channels under pressure supplied by a magnetohydrodynamic pump to maintain the separation of the rotating and non-rotating components of the bearing assembly.
-
公开(公告)号：US20140376837A1
公开(公告)日：2014-12-25
申请号：US14312559
申请日：2014-06-23
CPC分类号： F16F1/361 , B82Y25/00 , B82Y30/00 , F16C32/0637 , F16C33/1035 , F16C33/6644 , F16C2210/06 , H01F1/447
摘要： Systems, devices, uses and methods relating to magnetorhological materials including carbon nanotubes, such as single-walled and multi-walled carbon nanotubes, are disclosed. Uses of magnetorheological materials such as in motion damping/vibration isolation are also disclosed.
摘要翻译： 公开了与包括碳纳米管在内的磁性材料相关的系统，装置，用途和方法，例如单壁和多壁碳纳米管。 还公开了诸如运动阻尼/隔振的磁流变材料的使用。
-
公开(公告)号：US06833780B2
公开(公告)日：2004-12-21
申请号：US10741667
申请日：2003-12-19
申请人： Jeffrey T. Cheung
发明人： Jeffrey T. Cheung
IPC分类号： H01F702
CPC分类号： H01F1/44 , C10M171/06 , C10M2201/062 , C10M2203/1006 , C10M2207/12 , C10N2210/08 , C10N2220/02 , C10N2220/082 , C10N2230/06 , C10N2240/02 , C10N2250/12 , F16C29/02 , F16C32/0637 , F16C33/1035 , H02K7/09 , H02K49/10 , H02K2201/18
摘要： A mechanical translator includes at least one magnet that is disposed on a substrate to carry a load and has a magnetic axis generally transverse to the substrate, establishing a magnetic field with maximum external density adjacent the substrate. An ultra low friction interface is obtained with ferrofluid bearings, such as a light mineral oil medium mixed with isoparaffinic acid, which establish a critical angle of displacement from a horizontal static position of less than 1 degree, and preferably less than 10 minutes. A controller of magnetic material can be placed on the opposite side of the substrate to control the movement of the magnets.
-
-
-
-
-
-
-
-
-
搜索结果
18 条记录 (耗时 0.012 秒)
