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公开(公告)号：US20150124937A1
公开(公告)日：2015-05-07
申请号：US14396808
申请日：2013-05-09
发明人： Wolfgang Chrost
CPC分类号： H02K3/02 , H01J35/101 , H01J35/103 , H01J2235/1026
摘要： The present invention relates to a rotor for an X-ray tube. In order to provide further possibilities for weight reduction in X-ray tubes for providing an increase of rotation frequency, a rotor (10) for an X-ray tube is provided, comprising a rotational structure (12) with a plurality of electrically conducting elements (14), the ends thereof connected to each other and provided such that an external stator magnetic field generated by a stator induces a current in the electrically conducting elements, which current generates a rotor magnetic field to interact with the stator magnetic field. At least the plurality of electrically conducting elements is made from carbon composite based material.
摘要翻译： 本发明涉及一种用于X射线管的转子。 为了提供用于提高旋转频率的X射线管的重量减轻的进一步可能性，提供了一种用于X射线管的转子（10），其包括具有多个导电元件的旋转结构（12） （14），其端部彼此连接并且设置成使得由定子产生的外部定子磁场在导电元件中感应出电流，该电流产生与定子磁场相互作用的转子磁场。 至少多个导电元件由碳复合材料制成。
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公开(公告)号：US06430261B1
公开(公告)日：2002-08-06
申请号：US09610596
申请日：2000-07-05
申请人： Christoph Bathe
发明人： Christoph Bathe
IPC分类号： H01J3510
CPC分类号： H01J35/103 , F16C17/026 , F16C17/08 , F16C17/102 , F16C25/045 , F16C32/0417 , F16C32/0427 , F16C2380/16
摘要： The invention relates to a rotary-anode X-ray tube which includes an axial bearing arrangement which is particularly suitable for combination with a radial spiral groove bearing. It is a problem of known axial magnet bearings, which generally comprise two tooth-like structures which are oriented in the radial direction and are oppositely situated, consists in that substantial radial forces are generated during the starting and the stopping phase, which radial forces can cause substantial wear of notably radial spiral groove bearings. An axial bearing which involves significantly lower radial forces and hence a less loading of the radial bearings, is realized by an arrangement of at least two magnetic elements which are spaced apart in the axial direction and are connected in such a manner that they take up axial bearing forces. A further solution to this problem is achieved by means of an axial bearing in the form of a single-point ball bearing.
摘要翻译： 本发明涉及一种旋转阳极X射线管，其包括特别适用于与径向螺旋槽轴承组合的轴向轴承装置。 已知的轴向磁体轴承的问题通常包括沿径向定向并相对定位的两个齿形结构，其特征在于，在起始和停止阶段期间产生大量的径向力，这些径向力可以 引起明显的径向螺旋槽轴承的大量磨损。 通过至少两个在轴向方向间隔开的磁性元件的布置来实现包括明显较低的径向力并因此减小径向轴承的载荷的轴向轴承，并且以这样一种方式连接，使得它们轴向 承载力。 通过采用单点滚珠轴承形式的轴向轴承，可以进一步解决这个问题。
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公开(公告)号：US4651336A
公开(公告)日：1987-03-17
申请号：US604815
申请日：1984-04-27
申请人： Jacques Le Guen , Andre Plessis
发明人： Jacques Le Guen , Andre Plessis
CPC分类号： H01J35/103
摘要： In an X-ray tube comprising a rotating anode mounted on magnetic bearings, the flow of anode current within the tube takes place without any contact by means of a stationarily fixed hollow anode in which is placed a cathode coupled rotationally to the rotating anode. The hollow anode is associated with heating means and the cathode is heated by thermal radiation within the hollow anode.
摘要翻译： 在包括安装在磁性轴承上的旋转阳极的X射线管中，管内的阳极电流的流动通过固定的中空阳极进行而没有任何接触，其中放置有旋转地旋转到旋转阳极的阴极。 空心阳极与加热装置相关联，阴极通过中空阳极内的热辐射加热。
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公开(公告)号：US4414681A
公开(公告)日：1983-11-08
申请号：US320734
申请日：1981-11-12
申请人： Gerd Seifert
发明人： Gerd Seifert
CPC分类号： H01J35/103
摘要： In an exemplary embodiment, an anode assembly is magnetically mounted free of contact. In order to carry off the anode current, on a part rotating with the anode assembly, an auxiliary cathode is arranged opposite which a stationary auxiliary anode is disposed. The auxiliary cathode is an oxide cathode which is centrically arranged on the rotary anode assembly and opposite which a stationary heater is disposed.
摘要翻译： 在示例性实施例中，阳极组件被磁性地安装成没有接触。 为了排出阳极电流，在与阳极组件一起旋转的部分上，辅助阴极被布置成与固定的辅助阳极相对设置。 辅助阴极是中心布置在旋转阳极组件上并与之相对置的固定加热器的氧化物阴极。
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公开(公告)号：US4357555A
公开(公告)日：1982-11-02
申请号：US147885
申请日：1980-05-08
申请人： Jan Gerkema , Evert M. H. Kamerbeek
发明人： Jan Gerkema , Evert M. H. Kamerbeek
CPC分类号： F16C32/0465 , F16C17/02 , F16C17/026 , F16C32/0402 , F16C32/0476 , F16C33/102 , F16C33/107 , F16C33/12 , F16C33/122 , F16C39/063 , H01J35/103 , C10M2201/05 , C10N2240/06 , F16C2204/60 , F16C2380/16 , H01J2235/1086
摘要： An X-ray tube having a rotary anode which is supported by a bearing system comprising an axial magnetic bearing and at least one radial sleeve bearing. In operation, mutually cooperating metal (e.g. W or Mo) supporting faces of the sleeve bearing are separated by a liquid layer wetting the supporting faces. The liquid layer consists of a metal or a metal alloy, such as Ga or a Ga alloy, whose vapor pressure at 300.degree. C. is below 10.sup.-5 N/m.sup.2, and which does not attack the supporting faces to any substantial extent. The tube has a long life, produces little noise during operation, and is of relatively simple construction.
摘要翻译： 一种具有旋转阳极的X射线管，其由包括轴向磁轴承和至少一个径向套筒轴承的轴承系统支撑。 在操作中，套筒轴承的相互配合的金属（例如W或Mo）支撑面被润湿支撑面的液体层分开。 液体层由金属或金属合金，例如Ga或Ga合金组成，其在300℃下的蒸汽压低于10-5N / m 2，并且不会在任何实质程度上攻击支撑面。 管寿命长，运行时噪音小，结构相对简单。
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公开(公告)号：US4081707A
公开(公告)日：1978-03-28
申请号：US753181
申请日：1976-12-22
CPC分类号： F16C32/0489 , H01J35/103 , F16C2380/16
摘要： X-ray tubes with a magnetic bearing either have the disadvantage that the anode must be at earth potential, so that an asymmetric high-voltage supply is required or that -- in the case of a symmetric high voltage -- a relatively wide air gap is necessary which requires a high driving force and a bearing which has a certain amount of drawbacks. The invention provides an insulator between the anode which is at the high-voltage potential and the rotor which is at the earth potential, so that the air-gap between the rotor and stator can be relatively small and an effective magnetic bearing is possible.
摘要翻译： 具有磁性轴承的X射线管的缺点是阳极必须处于地电位，从而需要非对称高压电源，或者在对称高电压的情况下，需要相对宽的气隙 这需要具有一定量缺点的高驱动力和轴承。 本发明提供了处于高电压电位的阳极和处于地电位的转子之间的绝缘体，使得转子和定子之间的气隙可以相对较小并且有效的磁轴承是可能的。
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公开(公告)号：US4040681A
公开(公告)日：1977-08-09
申请号：US467384
申请日：1974-05-06
CPC分类号： F16C32/044 , B60L13/04 , F16C32/0472 , H01J35/103 , B60L2200/26 , F16C2300/62 , F16C2380/16
摘要： A magnetically levitated object provided with a magnetic suspension system consisting of support magnets which magnetically cooperate. The levitated object is maintained in a stable condition by means of a stabilizing device which substantially comprises two main magnetic elements one of which is connected to the levitated object and comprises at least one stabilizing permanent magnet. The second main element includes a system which generates a constant amplitude magnetic alternating field in which the stabilizing magnet is disposed. If the levitated object is to be stationary, an electric coil surrounds the stabilizing magnet. In the case of a moving object, such as a levitated train, each carriage -- suspended or standing -- is provided with a row of stabilizing magnets which are arranged parallel to the magnet rail and are alternately magnetized in opposite directions. A linear damping system may be used to restrict any oscillations.
摘要翻译： 磁悬浮物体设置有磁悬浮系统，磁悬浮系统由磁性配合的支撑磁体组成。 悬浮物体通过稳定装置保持在稳定状态，该稳定装置基本上包括两个主要磁性元件，其中一个主要磁性元件连接到悬浮物体并且包括至少一个稳定永磁体。 第二主要元件包括产生其中设置有稳定磁体的恒定磁场交变场的系统。 如果悬浮物体静止，则电磁线圈围绕稳定磁体。 在诸如悬浮列车的移动物体的情况下，每个悬架或悬架的滑架设置有一排稳定磁体，其平行于磁铁轨布置并且沿相反的方向交替磁化。 可以使用线性阻尼系统来限制任何振荡。
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公开(公告)号：US20170323758A1
公开(公告)日：2017-11-09
申请号：US15660310
申请日：2017-07-26
CPC分类号： H01J35/103 , H01J35/101 , H01J35/105 , H01J35/108 , H01J35/26 , H01J2235/1208 , H01J2235/1295
摘要： According to one embodiment, a rotating anode X-ray tube including a rotating cylinder, a rotating shaft fixed to the inside of the rotating cylinder, an anode fixing body arranged between the rotating cylinder and the rotating shaft, extending in the axial direction, and constituted of one of a magnetic substance member formed of a magnetic substance and a heat-transfer enhancing member heat conductivity of which is higher than surrounding members, ball bearings, and an inner member, connected to the anode fixing body by a connecting member, and constituted of one of the magnetic substance member and the heat-transfer enhancing member, one being different from the member constituting the anode fixing body.
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公开(公告)号：US08269388B2
公开(公告)日：2012-09-18
申请号：US12322424
申请日：2009-02-02
IPC分类号： H02K7/09
CPC分类号： H02K7/09 , F16C32/0461 , F16C32/047 , F16C32/0491 , F16C2380/16 , H01J35/103
摘要： A rotor assembly includes a rotor having a central axis extending between the two opposing ends and a radial surface, and is rotatable about the central axis. At least one electromagnet is disposed proximal to and configured to exert magnetic force on a portion of the rotor. Further, a channeling member is disposed generally adjacent to the electromagnet and has a radial surface disposed adjacent to the rotor radial surface. As such, magnetic flux generated by the electromagnet extends generally radially between the electromagnet and the rotor portion and generally axially between the rotor portion and the channeling member so that the magnetic force biases the rotor both radially and axially to maintain the rotor at a desired position. Preferably, the assembly includes a plurality of magnets proximal to each end, two channeling members, and a tubular body extending between the channeling members and enclosing the rotor.
摘要翻译： 转子组件包括具有在两个相对端之间延伸的中心轴线和径向表面的转子，并且可围绕中心轴线旋转。 至少一个电磁体设置在转子的一部分上并且构造成对转子的一部分施加磁力。 此外，通道构件大体上邻近电磁铁设置，并且具有邻近转子径向表面设置的径向表面。 因此，由电磁体产生的磁通通常在电磁体和转子部分之间径向延伸，并且在转子部分和通道部件之间大致轴向地延伸，使得磁力径向和轴向地偏压转子，以将转子保持在期望的位置 。 优选地，组件包括靠近每个端部的多个磁体，两个通道构件和在引导构件之间延伸并包围转子的管状体。
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公开(公告)号：US08102969B2
公开(公告)日：2012-01-24
申请号：US12640238
申请日：2009-12-17
申请人： Herbert Bittl
发明人： Herbert Bittl
CPC分类号： H01J35/103 , H01J35/105 , H01J2235/1073 , H01J2235/1086 , H01J2235/1204 , H01J2235/1208 , H01J2235/1295
摘要： An x-ray device has a cathode aligned on a target region in a tube housing with a rotating anode unit. The rotating anode unit is borne to rotate around a rotational axis inside the tube housing. The rotating anode unit has a rotating anode plate with the target region and a shaft rotationally connected with the rotating anode plate. A magnetic bearing supports the shaft without contact in the tube housing. The rotating anode plate has an axial extension facing away from the shaft. The axial extension dips into a fluid-filled receptacle space of the tube housing for heat dissipation. Such an x-ray device allows high rotation speeds of the rotating anode unit, and thus a high operational power.
摘要翻译： X射线装置在具有旋转阳极单元的管壳体中的目标区域上具有阴极对准。 旋转阳极单元被承载以围绕管壳体内的旋转轴线旋转。 旋转阳极单元具有带有目标区域的旋转阳极板和与旋转阳极板旋转连接的轴。 磁轴承支撑轴，而不会在管壳中接触。 旋转的阳极板具有一个远离轴的轴向延伸。 轴向延伸部浸入管外壳的流体填充的容器空间中以进行散热。 这样的X射线装置允许旋转阳极单元的高旋转速度，并且因此具有高的操作功率。
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