专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09964147B2 Magnetic bearing, shaft and shaft monitoring for a spinning rotor of an open-end spinning machine 有权
公开(公告)号：US09964147B2
公开(公告)日：2018-05-08
申请号：US14675148
申请日：2015-03-31
申请人： Rieter CZ s.r.o.
发明人： Milan Moravec , Jiri Sloupensky , Siegfried Silber , Andreas Josef Pröll , Peter Dirnberger
IPC分类号： F16C32/04
CPC分类号： F16C32/048 , D01H4/12 , F16C32/0465 , F16C32/047 , F16C32/0487 , F16C2340/18
摘要： A magnetic bearing for the mounting of a shaft, in particular for a spinning rotor of an open-end spinning device, features several pole shanks of a stator for the active radial magnetic mounting of the shaft in two degrees of freedom, which in each case are surrounded by a coil and are radially arranged to each other, in such a manner that they define an opening for the shaft. In the area of the opening, the pole shanks are connected to each other. For the passive axial mounting of the shaft, at least one permanent magnet is arranged between the coils and the opening. The invention also includes a shaft for mounting with at least one corresponding magnetic bearing. The shaft is a composite component, which at least partially consists of non-ferromagnetic material. In the area of the radial and axial mounting, a component made of a ferromagnetic material is arranged. A shaft mounting is also provided and features, for the passive axial mounting of one degree of freedom of the shaft and for the active radial mounting of two degrees of freedom of the shaft, at least one, preferably two, corresponding magnetic bearings.

2. 发明授权

US5455472A Moment imparting bearings for controlling shaft deflection 失效
标题翻译：施加轴承以控制轴偏转的时刻
公开(公告)号：US5455472A
公开(公告)日：1995-10-03
申请号：US87639
申请日：1993-07-06
申请人： Carl F. Weiss , David H. Hibner
发明人： Carl F. Weiss , David H. Hibner
IPC分类号： F16C39/06 , H02K7/09
CPC分类号： F16C32/0442 , F16C32/0485 , F16C32/0487
摘要： A magnetic bearing assembly is disclosed which provides for correction of shaft deflection, or "bowing", during rotation of the shaft. The assembly comprises two stator rings in spaced relation to each other, and each stator ring comprises a plurality of stator sections which are independently activated. When the shaft "bows", sensors detect the deflection and independently activate the various stator sections producing a force couple which acts on the rotor to produce a bending moment in the shaft which tends to counteract the "bowing".
摘要翻译：公开了一种磁轴承组件，其在轴的旋转期间提供轴偏转或“弯曲”的校正。组件包括彼此间隔开的两个定子环，并且每个定子环包括独立地被激活的多个定子部分。当轴“弓”时，传感器检测偏转并且独立地激活各个定子部分，产生作用在转子上的力耦合，以在轴中产生倾向于抵抗“弯曲”的弯曲力矩。

3. 发明授权

US4841204A Combination electric motor and magnetic bearing 失效
标题翻译：组合电动机和磁性轴承
公开(公告)号：US4841204A
公开(公告)日：1989-06-20
申请号：US105256
申请日：1987-10-07
申请人： Philip A. Studer
发明人： Philip A. Studer
IPC分类号： F16C39/06 , H02K7/09
CPC分类号： F16C32/0487 , F16C32/0444 , F16C32/0497 , H02K7/09
摘要： A brushless DC motor is disclosed wherein armature forces can be produced and controlled as both radial forces and as torque couples. A structure is described in which the normal radial destabilizing forces due to the high levels of magnetic flux linking the stator and rotor are reduced and the force gradient is moderated. This is accomplished by locating the rotor between two concentric stator coil assemblies either of which may be used for bearing or torquing to join the rotor magnets via magnetically "soft" iron, thereby reducing the rotor mass and inertia with the consequent improvement in dynamic performance. Since the forces on the rotor are the sum of the forces produced by each individual stator coil, it is possible to combine groups of stator coils in various ways and independently control them to achieve the dual purpose. Radial position sensors and commutation sensors are included, the former to control currents in diagonally opposite pairs of stator coils in response to eccentricity as measured by the position sensors and the latter to make the resultant radial force independent of the rotor magnets angular position and polarity. The same commutation sensors also provide rotor angular information for smooth torque production in the normal manner.
摘要翻译：公开了一种无刷直流电动机，其中可以产生和控制电枢力作为径向力和扭矩对。描述了一种结构，其中由于连接定子和转子的高磁通量而导致的正常的径向不稳定力减小并且力梯度被缓和。这是通过将转子定位在两个同心定子线圈组件之间来实现的，其中任一个可以用于轴承或扭矩以通过磁性“软”铁连接转子磁体，由此降低转子质量和惯性，从而改善动态性能。由于转子上的力是由各个定子线圈产生的力的总和，因此可以以各种方式组合定子线圈组并且独立地控制它们以实现双重目的。包括径向位置传感器和换向传感器，前者用于响应由位置传感器和后者定位的偏心度控制对角相对的定子线圈对中的电流，以使得所得到的径向力独立于转子磁体的角位置和极性。相同的换向传感器还提供转子角度信息，以正常方式产生平稳的扭矩。

4. 发明授权

US09890811B2 Multiple-axis magnetic bearing and control of the magnetic bearing with active switch topologies 有权
公开(公告)号：US09890811B2
公开(公告)日：2018-02-13
申请号：US14390197
申请日：2013-04-03
申请人： Carrier Corporation
发明人： Parag Kshirsagar , Peng Yan
IPC分类号： F04D29/058 , F16C32/04 , F25B31/02 , F25B1/00
CPC分类号： F16C32/0489 , F04D29/058 , F16C32/0444 , F16C32/0451 , F16C32/0457 , F16C32/0487 , F16C2362/52 , F25B1/005 , F25B31/026
摘要： A magnetic bearing system (120) includes a first active magnetic bearing (AMB) (202) including a first group of electromagnetic actuators (306, 310, 314, 318) to support a shaft and a second AMB (204) including a second group of electromagnetic actuators (308, 312, 316, 320) to support the shaft. A controller for the two AMB's includes a multi-phase topology (400) with a plurality of active current switches for controlling the electromagnetic actuators (306-320) of each of the first AMB (202) and the second AMB (204). Each electromagnetic actuator (306, 310, 314, 318) of the first AMB (202) is electrically coupled to an electromagnetic actuator (308, 312, 316, 320) of the second AMB (204). Each pair of coupled electromagnetic actuators (306, 316) is respectively connected to three phase legs (418, 420, 422) of the topology (400) of the controller, whereby one end (X2+, X3−) of each of the electromagnetic actuators of a pair (306, 316) is connected to one phase leg (420) of the topology (400) and the other ends (X1+, X4−) are respectively connected to two further phase legs (418, 422) of the topology (400). The controller is operable to receive information indicative of a position of the rotor shaft and supply an adjustment signal to the magnetic bearing system (120) to adjust the position of the shaft.

5. 发明授权

US09583992B2 Device and method for controlling an active magnetic bearing 有权
标题翻译：用于控制主动磁轴承的装置和方法
公开(公告)号：US09583992B2
公开(公告)日：2017-02-28
申请号：US14028696
申请日：2013-09-17
申请人： GE Energy Power Conversion Technology Ltd
发明人： Xavier De Lepine
IPC分类号： H02P6/00 , H02K7/09 , F16C32/04
CPC分类号： H02K7/09 , F16C32/0451 , F16C32/0487
摘要： A command procedure for an active magnetic bearing, the magnetic bearing comprising a series of electromagnetic actuators forming a stator, each actuator being suitable for exerting radial force on the rotor, a ferromagnetic body forming a rotor, kept free of contact between the electromagnetic actuators and suitable for being set in rotation around an axis of rotation, the rotor being suitable to undergo precession movements in particular. Sensors suitable for detecting radial displacements of the rotor and issuing position signals representative of the radial position of the rotor in relation to the actuators. Calculation of at least one actuator command signal the calculation of the command signal consisting of the application of at least one transfer function to the position signals, the transfer function containing a number of correction coefficients.
摘要翻译：一种主动磁轴承的指令程序，该磁轴承包括一系列形成定子的电磁致动器，每个致动器适用于在转子上施加径向力，形成转子的铁磁体保持与电磁致动器之间无接触，适于围绕旋转轴线旋转设置，转子特别适于进行进动运动。适用于检测转子的径向位移的传感器，并且发出代表转子相对于致动器的径向位置的位置信号。至少一个致动器命令信号的计算包括将至少一个传递函数应用于位置信号的指令信号的计算，传递函数包含多个校正系数。

6. 发明申请

US20150068243A1 MULTIPLE-AXIS MAGNETIC BEARING AND CONTROL OF THE MAGNETIC BEARING WITH ACTIVE SWITCH TOPOLOGIES 有权
标题翻译：具有主动开关拓扑的磁轴承的多轴磁性轴承和控制
公开(公告)号：US20150068243A1
公开(公告)日：2015-03-12
申请号：US14390197
申请日：2013-04-03
申请人： Carrier Corporation
发明人： Parag Kshirsagar , Peng Yan
IPC分类号： F16C32/04 , F25B1/00
CPC分类号： F16C32/0489 , F04D29/058 , F16C32/0444 , F16C32/0451 , F16C32/0457 , F16C32/0487 , F16C2362/52 , F25B1/005 , F25B31/026
摘要： A magnetic bearing system (120) includes a first active magnetic bearing (AMB) (202) including a first group of electromagnetic actuators (306, 310, 314, 318) to support a shaft and a second AMB (204) including a second group of electromagnetic actuators (308, 312, 316, 320) to support the shaft. A controller for the two AMB's includes a multi-phase topology (400) with a plurality of active current switches for controlling the electromagnetic actuators (306-320) of each of the first AMB (202) and the second AMB (204). Each electromagnetic actuator (306, 310, 314, 318) of the first AMB (202) is electrically coupled to an electromagnetic actuator (308, 312, 316, 320) of the second AMB (204). Each pair of coupled electromagnetic actuators (306, 316) is respectively connected to three phase legs (418, 420, 422) of the topology (400) of the controller, whereby one end (X2+, X3−) of each of the electromagnetic actuators of a pair (306, 316) is connected to one phase leg (420) of the topology (400) and the other ends (X1+, X4−) are respectively connected to two further phase legs (418, 422) of the topology (400). The controller is operable to receive information indicative of a position of the rotor shaft and supply an adjustment signal to the magnetic bearing system (120) to adjust the position of the shaft.
摘要翻译：磁轴承系统（120）包括第一主动磁轴承（AMB）（202），其包括用于支撑轴的第一组电磁致动器（306,310,314,318）和包括第二组的第二AMB（204）的电磁致动器（308,312,316,320）以支撑轴。用于两个AMB的控制器包括具有多个有源电流开关的多相拓扑（400），用于控制第一AMB（202）和第二AMB（204）中的每一个的电磁致动器（306-320）。第一AMB（202）的每个电磁致动器（306,310,314,318）电耦合到第二AMB（204）的电磁致动器（308,312,316,320）。每对耦合的电磁致动器（306,316）分别连接到控制器的拓扑（400）的三相支路（418,420,422），由此每个电磁致动器的一端（X2 +，X3-）一对（306,316）连接到拓扑（400）的一个相支路（420），另一端（X1 +，X4-）分别连接到拓扑的两个另外的相位支路（418,422） 400）。控制器可操作以接收指示转子轴的位置的信息，并向磁性轴承系统（120）提供调节信号以调节轴的位置。

7. 发明授权

US07977838B2 Magnetic levitation motor and pump 有权
标题翻译：磁悬浮马达和泵
公开(公告)号：US07977838B2
公开(公告)日：2011-07-12
申请号：US12255206
申请日：2008-10-21
申请人： Hiroyuki Onuma
发明人： Hiroyuki Onuma
IPC分类号： H02K7/09
CPC分类号： F04D29/058 , F16C32/0459 , F16C32/0465 , F16C32/048 , F16C32/0487 , F16C2360/44 , H02K7/09 , H02K11/21 , H02K21/14
摘要： A magnetic levitation motor including a stator having magnetic bearing units and a motor unit, and a rotor provided to the stator. And the occurrence of an eddy current at a magnetic bearing is suppressed and the rotation loss of the rotor can be reduced, and also to provide a pump using such the magnetic levitation motor.
摘要翻译：一种磁悬浮电动机，包括具有磁性轴承单元的定子和电机单元，以及设置在定子上的转子。并且抑制了磁轴承处的涡电流的发生，并且可以减小转子的旋转损耗，并且还提供使用这种磁悬浮电动机的泵。

8. 发明授权

US06362549B1 Magnetic bearing device 失效
标题翻译：磁轴承装置
公开(公告)号：US06362549B1
公开(公告)日：2002-03-26
申请号：US09616644
申请日：2000-07-14
申请人： Yongwei Shi , Yoshinobu Otachi
发明人： Yongwei Shi , Yoshinobu Otachi
IPC分类号： A02K709
CPC分类号： F16C32/0459 , F16C32/0487
摘要： A magnetic bearing device has a rotational member mounted for undergoing rotation about a rotary axis, a permanent magnet disposed on the rotational member, and a motor for rotating the rotational member. The motor has a core, projecting portions extending from the core, and motor coils each wound around a respective one of the projecting portions. The motor is disposed opposite to and spaced-apart from the permanent magnet for rotating the rotational member and contactlessly controlling an axial position of the rotational member along the rotary axis only by a magnetic forces generated between the permanent magnet, the core and the motor coils. A magnetic radial bearing contactlessly controls a radial position of the rotational member.
摘要翻译：磁性轴承装置具有安装成围绕旋转轴线旋转的旋转构件，设置在旋转构件上的永磁体和用于使旋转构件旋转的电动机。电动机具有芯部，从芯部延伸的突出部分和各自缠绕在相应的一个突出部分的电动机线圈。电动机与永久磁铁相对设置并与其间隔开，用于旋转旋转件，并且仅通过在永久磁铁，磁芯和电动机线圈之间产生的磁力非接触地控制旋转件沿着旋转轴的轴向位置。磁性径向轴承非接触地控制旋转构件的径向位置。

9. 发明申请

US20010013733A1 RADIAL ACTIVE MAGNETIC BEARING APPARATUS AND A METHOD FOR OPERATING THE SAME 失效
标题翻译：径向有源磁力轴承装置及其操作方法
公开(公告)号：US20010013733A1
公开(公告)日：2001-08-16
申请号：US09011604
申请日：1998-02-10
发明人： RETO SCHOB
IPC分类号： H02K007/09
CPC分类号： F16C32/0463 , F16C32/0457 , F16C32/0476 , F16C32/048 , F16C32/0487 , H02K7/09
摘要： A radial, active magnetic bearing apparatus (6) comprising at least three electromagnets (2u, 2v, 2w) which are distributedly arranged is excited by a three-phase rotary current controller (10).
摘要翻译：包括分布布置的至少三个电磁体（2u，2v，2w）的径向主动磁轴承装置（6）由三相旋转电流控制器（10）激发。

10. 发明授权

US5111102A Magnetic bearing structure 失效
标题翻译：磁性轴承结构
公开(公告)号：US5111102A
公开(公告)日：1992-05-05
申请号：US522209
申请日：1990-05-11
申请人： Crawford R. Meeks
发明人： Crawford R. Meeks
IPC分类号： F16C32/04 , F16C39/06
CPC分类号： F16C32/0463 , F16C32/0444 , F16C32/0465 , F16C32/0487
摘要： A magnetic bearing structure is provided for supporting a rotatable member in a suspended position relative to a stationary member utilizing a constant flux axially polarized magnetic field and a variable flux radially polarized electromagnetic field. In one preferred form of the invention the bearing structure includes axially spaced apart rings associated with the stationary member, which hold a plurality of electromagnetic coils circumferentially about and radially spaced from a rotatable shaft. Electrical current is supplied to the coils generate a radially polarized electromagnetic field surrounding the shaft. At least one cylindrically shaped permanent magnet surrounds a portion of the shaft and is positioned generally between the pair of arcuate rings. The permanent magnet is axially polarized and is linked magnetically to the arcuate rings. Substantially all of the magnetic flux generated by the electromagnetic coils and the permanent magnet is direct radially through only a pair of air gaps between the shaft and the rings. Position sensors, along with a servo control circuit, detect and compensate for any radial displacement of the shaft to maintain it in a metastable position relative to the stationary member. In alternative embodiments the rotatable member may encircle the stationary member, and the permanent magnet may be replaced by a constant flux electromagnet.
摘要翻译：提供磁轴承结构，用于利用恒磁通轴向极化磁场和可变磁通径向极化电磁场，使旋转构件相对于固定构件支撑在悬挂位置。在本发明的一个优选形式中，轴承结构包括与固定构件相关联的轴向间隔开的环，其保持多个电磁线圈周向地围绕可旋转轴并且与其径向间隔开。电流被提供给线圈，产生围绕轴的径向极化电磁场。至少一个圆柱形永磁体围绕轴的一部分并且大致位于该对弓形环之间。永磁体被轴向极化并且与磁环连接。基本上由电磁线圈和永磁体产生的所有磁通量直接径向通过轴和环之间的一对气隙。位置传感器以及伺服控制电路检测和补偿轴的任何径向位移，以使其相对于固定构件保持在亚稳定位置。在替代实施例中，可旋转构件可以环绕固定构件，并且永磁体可以由恒定磁通电磁体代替。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式