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1.发明授权Device for compensating the gain of a servo-controlled circuit by negative current feedback 失效通过负电流反馈补偿伺服控制电路的增益的装置
公开(公告)号：US4308490A
公开(公告)日：1981-12-29
申请号：US12333
申请日：1979-02-15
申请人： Helmut Habermann , Maurice Brunet
发明人： Helmut Habermann , Maurice Brunet
CPC分类号： F16C32/0451
摘要： The invention relates to a device for compensating the gain of a circuit servo-controlling the position of a rotor with the aid of at least one electromagnetic bearing provided with electromagnet windings, from signals delivered by at least one detector detecting the position of the rotor, the servo-control circuit ensuring the control of the supply of the windings in response to the signals delivered by the detectors and comprising an amplification circuit with which is associated a negative current feedback loop, said device further comprising supplementary electrical means for injecting at the input of the amplification circuit a signal depending on the variations in the airgap of the servo-controlled electromagnetic bearing, in a predetermined variation frequency zone. The invention is more particularly applicable to electronic circuits for controlling active electromagnetic bearings.
摘要翻译： 本发明涉及一种用于补偿电路伺服的增益的装置，借助至少一个具有电磁铁绕组的电磁轴承，借助至少一个检测转子位置的检测器发出的信号来控制转子的位置， 伺服控制电路确保响应于由检测器传送的信号来控制绕组的供应，并且包括与负电流反馈回路相关联的放大电路，所述装置还包括用于在输入端注入的补充电气装置 根据伺服控制的电磁轴承的气隙的变化，在预定的变化频率区域中，放大电路的信号。 本发明更具体地适用于用于控制有源电磁轴承的电子电路。
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2.发明授权Active radial magnetic bearing with solid rotor for damping critical frequencies 失效具有固体转子的主动径向磁轴承用于阻尼临界频率
公开(公告)号：US4866318A
公开(公告)日：1989-09-12
申请号：US131310
申请日：1987-12-08
申请人： Helmut Habermann , Maurice Brunet , Alain Gerbier
发明人： Helmut Habermann , Maurice Brunet , Alain Gerbier
CPC分类号： F16C32/0444 , F16C32/048
摘要： Active radial magnetic bearing with solid rotor comprising a stator composed of an armature and electromagnetic coils, a rotor fast with a rotary shaft and placed opposite the stator, detectors for detecting the radial position of the rotor with respect to the stator, and servo-control circuits for adjusting the current going through the electromagnetic coils according to the value of the signals delivered by said position detectors.The electromagnetic coils are so designed as to create a rotating sinusoidal magnetic field with radial flux, the electromagnetic coils comprising a plurality of windings distributed over the periphery of the stator and supplied in succession one after another from the servo-control circuits.This type of bearing helps going through critical frequencies.
摘要翻译： 具有固体转子的主动径向磁轴承包括由电枢和电磁线圈构成的定子，具有旋转轴的转子和定子相对放置的转子，用于检测转子相对于定子的径向位置的检测器和伺服控制 用于根据由所述位置检测器传送的信号的值调节经过电磁线圈的电流的电路。 电磁线圈被设计成产生具有径向磁通的旋转正弦磁场，电磁线圈包括分布在定子的周边上并从伺服控制电路依次相继提供的多个绕组。 这种类型的轴承有助于经历临界频率。
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公开(公告)号：US4180946A
公开(公告)日：1980-01-01
申请号：US883213
申请日：1978-03-03
申请人： Mats C. D. Heijkenskjold , Olle (Olof) J. G. Hedberg , Vello Klaassen , Sture V. Larsson , Helmut Habermann , Maurice Brunet
发明人： Mats C. D. Heijkenskjold , Olle (Olof) J. G. Hedberg , Vello Klaassen , Sture V. Larsson , Helmut Habermann , Maurice Brunet
CPC分类号： F16C32/0444 , B23Q1/70 , B23Q5/10 , B24B41/044 , F16C32/0489 , F16C2322/39
摘要： The tool-holding spindle assembly, particularly for a grinding machine, comprises means for supporting the shaft of the spindle and a power drive, for example an electric motor for rotating the spindle. The support means comprise at least one electromagnetic radial bearing controlled by a radial detector, having an annular armature mounted on the shaft of the spindle and a fixed armature surrounding this annular armature, an electromagnetic axial bearing having a disc-shaped armature mounted on the shaft of the spindle and a fixed armature, a chain for controlling the radial and/or axial position of the spindle, said chain being connected on the one hand to at least one detector of the radial and/or axial position of the spindle, and on the other hand to excitation coils of the armatures of each magnetic bearing, and means for selectively modifying the signal generated by said at least one position detector. This tool-holding spindle assembly makes it possible to give a rotating spindle a high speed of rotation and the desired rigidity for obtaining a very high machining precision. Further, precise displacements of the tool of limited amplitude may be controlled by modifying the detector's output signal.
摘要翻译： 工具保持主轴组件，特别是用于研磨机的工具保持主轴组件包括用于支撑主轴的轴的装置和动力驱动器，例如用于旋转主轴的电动机。 支撑装置包括由径向检测器控制的至少一个电磁径向轴承，其具有安装在主轴的轴上的环形衔铁和围绕该环形衔铁的固定电枢，电磁轴向轴承，其具有安装在轴上的盘形电枢 的主轴和固定电枢，用于控制主轴的径向和/或轴向位置的链条，所述链条一方面连接到主轴的径向和/或轴向位置的至少一个检测器上，并且在 另一方面涉及每个磁性轴承的电枢的励磁线圈，以及用于选择性地修改由所述至少一个位置检测器产生的信号的装置。 该工具保持主轴组件使得可以使旋转主轴具有高转速和所需的刚度，以获得非常高的加工精度。 此外，可以通过修改检测器的输出信号来控制有限幅度的刀具的精确位移。
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公开(公告)号：US4023920A
公开(公告)日：1977-05-17
申请号：US509717
申请日：1974-09-26
IPC分类号： F04D19/04 , F04D29/04 , F04D29/058 , F16C17/20 , F16C39/02 , F16C39/06 , F04B35/04 , F03B5/00
CPC分类号： F16C32/0442 , F04D19/048 , F04D29/058 , F16C32/047 , F16C35/00 , F16C39/02 , F16C2360/45 , F16C37/005
摘要： A turbomolecular vacuum pump has a housing, a vertically oriented hollow pump rotor situated in the housing, and a vertically upwardly oriented stub shaft affixed to the housing and extending into the hollow pump rotor. The pump rotor is supported on the stub shaft by a magnetic axial bearing and at least one magnetic radial bearing, all disposed in the space surrounded by the hollow pump rotor.
摘要翻译： 涡轮分子真空泵具有壳体，位于壳体中的垂直取向的中空泵转子和固定到壳体并延伸到中空泵转子中的垂直向上定向的短轴。 泵转子通过磁轴向轴承和至少一个磁性径向轴承支撑在短轴上，全部设置在由中空泵转子包围的空间中。
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公开(公告)号：US4012083A
公开(公告)日：1977-03-15
申请号：US574690
申请日：1975-05-05
申请人： Helmut Habermann , Maurice Brunet
发明人： Helmut Habermann , Maurice Brunet
CPC分类号： F16C32/0474
摘要： This invention relates to magnetic bearings and particularly to active magnetic bearings having a very low "friction couple". In accordance with the invention the active magnetic bearing is of the type which has a stator formed by an electromagnetic circuit having at least one pair of north and south poles, and wherein said electromagnetic circuit of said stator includes at least one electromagnet of U-shaped section. The arms of said U form north pole and south poles respectively and the electromagnet is so arranged that the plane of symmetry which separates the north pole from the south pole lies perpendicularly to the axis of rotation of the magnetic bearing.
摘要翻译： 本发明涉及磁性轴承，特别涉及具有非常低“摩擦力”的主动磁轴承。 根据本发明，主动磁轴承是具有由具有至少一对北极和南极的电磁回路形成的定子的类型，并且其中所述定子的所述电磁回路包括至少一个U形电磁体 部分。 所述U形的北极和南极的臂和电磁体被布置成使得北极与南极分开的对称平面垂直于磁轴承的旋转轴线。
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公开(公告)号：US4720649A
公开(公告)日：1988-01-19
申请号：US894798
申请日：1986-08-08
申请人： Helmut Habermann , Maurice Brunet
发明人： Helmut Habermann , Maurice Brunet
CPC分类号： F16C32/0468 , F16C32/048 , F16C2300/14
摘要： The rotor of the radial bearing comprises a central shaft and a stack of ferromagnetic laminations constituted by a set of very thin individual laminations each of which extends over a limited angular sector around the periphery of the central shaft, said laminations being disposed in parallel planes so as to constitute a succession of flat split rings extending perpendicularly to the rotor axis. The individual laminations in any given plane are angularly offset relative to the individual laminations of the adjacent planes in such a manner as to provide a stack of laminations which is staggered. A bearing in accordance with the invention is suitable for supporting large diameter shafts which rotate at high speeds.
摘要翻译： 径向轴承的转子包括中心轴和由一组非常薄的单个叠片构成的铁磁叠片堆叠，每个叠片围绕中心轴的周边延伸在有限的角部分上，所述叠片被设置在平行的平面上 构成一系列垂直于转子轴线延伸的扁平分裂环。 任何给定平面中的单个叠片相对于相邻平面的各个叠层角度地偏移，以提供交错的叠片堆叠。 根据本发明的轴承适用于支撑高速旋转的大直径轴。
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公开(公告)号：US4561313A
公开(公告)日：1985-12-31
申请号：US669089
申请日：1984-11-07
申请人： Helmut Habermann , Maurice Brunet
发明人： Helmut Habermann , Maurice Brunet
摘要： The device for measuring the longitudinal tension in a strip leaving a rolling mill or stand comprises a measuring roll over which the strip bearingly runs, said roll consisting of at least one roll mounted on active radial magnetic bearings acting as load sensors and supplying a signal based upon the tensile stress in the strip bearing on said measuring roll, and means for measuring the current flowing in the windings of the magnetic bearings, as well as means for detecting the radial position of the rolls supported by said bearings and means for measuring the air gap of the magnetic bearings and keeping said air gap substantially constant.
摘要翻译： 用于测量离开轧机或支架的条带中的纵向张力的装置包括测量辊，带材在该测量辊上运行，所述辊由安装在作为负载传感器的主动径向磁轴承上的至少一个辊组成，并提供基于 在所述测量辊上的带状轴承中的拉伸应力和用于测量在磁性轴承的绕组中流动的电流的装置以及用于检测由所述轴承支撑的辊的径向位置的装置和用于测量空气的装置 磁性轴承的间隙并保持所述气隙基本上恒定。
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公开(公告)号：US4392693A
公开(公告)日：1983-07-12
申请号：US352265
申请日：1982-02-25
申请人： Helmut Habermann , Maurice Brunet
发明人： Helmut Habermann , Maurice Brunet
CPC分类号： F16C32/0442 , F16C32/0451
摘要： The present invention relates to an active electromagnetic bearing comprising first and second sets of electromagnet coils, the two sets of coils being so placed on one armature that on each double-pole part of armature are wound one coil of the first set and one coil of the second set and that the successive coils of the first set are all wound in the same direction whereas the coils of the second set which duplicate the coils of the first set are alternately wound in the same direction and in opposite directions with respect to the corresponding coils of the first set, a detector for sensing the position of the movable member and a control circuit being associated with each set of coils, and switch-over means being provided for connecting either set of coils with the corresponding control circuit in response to a control signal.
摘要翻译： 本发明涉及一种包括第一组和第二组电磁线圈的有源电磁轴承，两组线圈被放置在一个电枢上，在电枢的每个双极部分上缠绕着第一组的一个线圈和一个线圈 第二组的第一组的连续线圈都以相同的方向缠绕，而复制第一组的线圈的第二组的线圈相对于相应的方向沿相同的方向和相反的方向交替地卷绕 第一组的线圈，用于感测可移动部件的位置的检测器和与每组线圈相关联的控制电路，并且提供切换装置，用于响应于一个线圈将两组线圈与相应的控制电路相连接 控制信号。
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9.发明授权Method and device for reducing the vibrations of rotating machines equipped with an active magnetic suspension 失效用于减少装有主动磁悬浮液的旋转机械振动的方法和装置
公开(公告)号：US4626754A
公开(公告)日：1986-12-02
申请号：US713814
申请日：1985-03-20
申请人： Helmut Habermann , Maurice Brunet , Andre Tassel
发明人： Helmut Habermann , Maurice Brunet , Andre Tassel
CPC分类号： F16C32/0451 , F16F15/02 , H02K7/09
摘要： A device for reducing the vibrations of a rotating machine equipped with an active magnetic suspension comprises at least two vibration detectors located on the machine frame for detecting disturbances applied to the frame, and at least an additional selection feedback loop with narrow band and high gain whose central frequency is synchronized with a reference frequency and which receives signals delivered by the vibration detectors. The additional selective feedback loop comprises means for integrating the signals delivered by the vibration detectors and filtering means for eliminating the transient signals whose frequency is not linked to the reference frequency.
摘要翻译： 用于减少配备有主动磁悬浮液的旋转机械的振动的装置包括位于机架上的至少两个振动检测器，用于检测施加于该框架的扰动，以及至少一个具有窄带和高增益的附加选择反馈回路， 中心频率与参考频率同步，并且接收由振动检测器传递的信号。 附加选择反馈回路包括用于对由振动检测器传送的信号和滤波装置进行积分的装置，用于消除其频率未与参考频率相关联的瞬态信号。
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10.发明授权Device for damping the critical frequencies of a rotor suspended by a radial electromagnetic bearing 失效用于阻尼由径向电磁轴承悬挂的转子临界频率的装置
公开(公告)号：US4128795A
公开(公告)日：1978-12-05
申请号：US751968
申请日：1976-12-17
申请人： Helmut Habermann , Maurice Brunet , Pierre Joly
发明人： Helmut Habermann , Maurice Brunet , Pierre Joly
CPC分类号： F16C32/0453 , H02K7/09
摘要： A device is disclosed for damping the critical frequencies of a rotor suspended by a radial electromagnetic bearing which has means associated therewith for detecting the radial position of the rotor, comprising a servo-circuit for connection between the detecting means and windings of the electromagnetic bearing and including a circuit for controlling the current supply to the windings in response to signals from the detecting means to keep the rotor in a predetermined radial position. The servo-circuit is provided with means for the selective amplification of the phase advance gain of said circuit in a frequency equal to the speed of rotation of the rotor for damping said critical frequencies.
摘要翻译： 公开了一种用于阻尼由径向电磁轴承悬挂的转子的临界频率的装置，其具有与其相关联的装置，用于检测转子的径向位置，包括用于检测装置和电磁轴承的绕组之间的连接的伺服电路， 包括用于响应于来自检测装置的信号控制对绕组的电流供应的电路，以将转子保持在预定的径向位置。 伺服电路具有用于以等于用于阻尼所述临界频率的转子的旋转速度的频率选择性地放大所述电路的相位超前增益的装置。
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