CN205663759U - Permanent magnetism biasing single degree of freedom axial magnetic bearing - Google Patents
Permanent magnetism biasing single degree of freedom axial magnetic bearing Download PDFInfo
- Publication number
- CN205663759U CN205663759U CN201620548202.4U CN201620548202U CN205663759U CN 205663759 U CN205663759 U CN 205663759U CN 201620548202 U CN201620548202 U CN 201620548202U CN 205663759 U CN205663759 U CN 205663759U
- Authority
- CN
- China
- Prior art keywords
- magnetic bearing
- magnetic
- core
- stator
- axial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005389 magnetism Effects 0.000 title 1
- 230000004907 flux Effects 0.000 claims abstract description 49
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000004804 winding Methods 0.000 claims abstract description 15
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 description 10
- 230000006872 improvement Effects 0.000 description 8
- 238000005339 levitation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
本实用新型公开了一种永磁偏置单自由度轴向磁轴承，包括定子、转子铁芯，转子铁芯包括轴向部分、径向部分；所述定子包括沿转子铁芯的轴向部分，并以转子铁芯的径向部分为对称中心，依次对称设置的左侧铁芯桥铁芯、右侧铁芯桥铁芯；左侧环形永磁体、右侧环形永磁体；磁轴承左侧定子铁芯、磁轴承右侧定子铁芯；磁轴承左侧定子铁芯、磁轴承右侧定子铁芯之间设置有隔磁铝环；磁轴承左侧定子铁芯、磁轴承右侧定子铁芯均呈E形结构，定子槽内分别绕制有控制绕组；本实用新型有效解决了现有轴向磁轴承的不足，提供一种控制、制造与装配简单，控制磁通不经过永磁体与转子轴向铁芯，可产生更大轴向悬浮力的低功耗单自由度轴向磁轴承。
The utility model discloses a permanent magnetic offset single-degree-of-freedom axial magnetic bearing, which comprises a stator and a rotor iron core. The rotor iron core includes an axial part and a radial part; the stator includes an axial part along the rotor iron core. , and take the radial part of the rotor core as the center of symmetry, the left iron core bridge iron core, the right iron core bridge iron core; the left annular permanent magnet and the right annular permanent magnet; the left side of the magnetic bearing The stator core and the right stator core of the magnetic bearing; the magnetic isolation aluminum ring is set between the left stator core of the magnetic bearing and the right stator core of the magnetic bearing; the left stator core of the magnetic bearing and the right stator iron of the magnetic bearing The cores are all in an E-shaped structure, and control windings are respectively wound in the stator slots; the utility model effectively solves the shortcomings of the existing axial magnetic bearings, provides a control, manufacturing and assembly, and the control magnetic flux does not pass through permanent magnets and magnetic bearings. Rotor axial iron core, low-power single-degree-of-freedom axial magnetic bearing that can generate greater axial suspension force.
Description
技术领域technical field
本实用新型涉及轴承制造技术领域，特别是一种控制、制造与装配简单、控制磁通不经过永磁体与转子轴向铁芯，可产生更大轴向悬浮力的低功耗永磁偏置单自由度轴向磁轴承。The utility model relates to the technical field of bearing manufacturing, in particular to a low-power permanent magnet bias with simple control, manufacture and assembly, and the control magnetic flux does not pass through the permanent magnet and the axial iron core of the rotor, which can generate greater axial suspension force Single degree of freedom axial magnetic bearing.
背景技术Background technique
磁轴承是利用定子和转子之间的电磁力将转子悬浮于空间，使定、转子之间无机械接触的一种新型高性能轴承。由于定、转子之间不存在机械接触，所以磁悬浮轴承支撑的悬浮转子可达到很高的运转转速，并且具有无机械磨损、能耗低、寿命长、无需润滑、无污染等优点，特别适合应用于高速或超高速直接驱动领域。The magnetic bearing is a new type of high-performance bearing that uses the electromagnetic force between the stator and the rotor to suspend the rotor in space, so that there is no mechanical contact between the stator and the rotor. Since there is no mechanical contact between the stator and the rotor, the suspension rotor supported by the magnetic suspension bearing can reach a high operating speed, and has the advantages of no mechanical wear, low energy consumption, long life, no lubrication, no pollution, etc., especially suitable for applications In the field of high-speed or ultra-high-speed direct drive.
目前，磁轴承按照磁力提供的方式分为以下三种：、主动磁轴承，由偏置电流产生偏置磁场，由控制电流产生的控制磁通与偏置磁通相互叠加，从而产生可控的悬浮力，该种磁轴承体积、重量和功耗都比较大；、被动磁轴承，悬浮力完全由永磁体提供，所需的控制器简单，悬浮功耗小，但是刚度和阻尼都较小，一般运用于仅在一个方向上支撑物体或者是减轻作用在传统轴承上的负荷；、混合磁轴承，是采用永磁材料替代主动磁轴承中的电磁铁来产生偏置磁场，控制电流仅提供平衡负载或干扰的控制磁通，大大降低了磁轴承的功率损耗，缩小了磁轴承的体积，减轻了其重量，并提高了承载能力。At present, magnetic bearings are divided into the following three types according to the way the magnetic force is provided: 1. Active magnetic bearing, the bias magnetic field is generated by the bias current, and the control flux and bias flux generated by the control current are superimposed on each other, thereby generating a controllable levitation force. The volume, weight and power consumption of this kind of magnetic bearing are relatively Big; , Passive magnetic bearings, the levitation force is completely provided by permanent magnets, the required controller is simple, the levitation power consumption is small, but the stiffness and damping are small, generally used to support objects in only one direction or to reduce the effect on traditional bearings load on 1. Hybrid magnetic bearing, which uses permanent magnetic material to replace the electromagnet in the active magnetic bearing to generate a bias magnetic field. The control current only provides the control flux for balancing load or interference, which greatly reduces the power loss of the magnetic bearing and shrinks the size of the magnetic bearing. The volume reduces its weight and improves its carrying capacity.
目前，根据永磁偏置轴向磁轴承结构形式不同，可分为三种，、将永磁体置于转子中，导致其安装难度增大，转子强度低限制其转速的提升；、磁轴承将悬浮转子置于定子的两侧，轴向长度长，临界转速低；、磁轴承中轴向控制磁通穿过永磁体，对永磁体呈明显的去磁作用，漏磁较大，且永磁体的磁阻大，导致产生相同的轴向悬浮力所需电流大，功耗高，其应用场领域受到限制。At present, according to the different structural forms of the permanent magnet bias axial magnetic bearing, it can be divided into three types, , Placing the permanent magnet in the rotor makes its installation more difficult, and the low strength of the rotor limits the increase of its speed; , The magnetic bearing places the suspended rotor on both sides of the stator, the axial length is long, and the critical speed is low; 2. The axial control magnetic flux in the magnetic bearing passes through the permanent magnet, which has an obvious demagnetization effect on the permanent magnet. The magnetic flux leakage is large, and the reluctance of the permanent magnet is large, resulting in a large current required to generate the same axial levitation force. The power consumption is high, and its field of application is limited.
发明内容Contents of the invention
本实用新型要解决的技术问题是提供一种永磁偏置单自由度轴向磁轴承，本实用新型有效解决了现有轴向磁轴承的不足，提供一种控制、制造与装配简单，控制磁通不经过永磁体与转子轴向铁芯，可产生更大轴向悬浮力的低功耗单自由度轴向磁轴承。The technical problem to be solved by the utility model is to provide a permanent magnetic bias single-degree-of-freedom axial magnetic bearing. The magnetic flux does not pass through the permanent magnet and the axial iron core of the rotor, which can generate a low-power single-degree-of-freedom axial magnetic bearing with greater axial suspension force.
本实用新型通过以下技术方案实现：The utility model is realized through the following technical solutions:
一种永磁偏置单自由度轴向磁轴承，包括定子、转子铁芯（11），其特征在于：所述转子铁芯（11）包括轴向部分、径向部分；所述定子包括沿转子铁芯（11）的轴向部分，并以转子铁芯（11）的径向部分为对称中心，依次对称设置的左侧铁芯桥铁芯(1)、右侧铁芯桥铁芯(7)；左侧环形永磁体(2)、右侧环形永磁体(6)；磁轴承左侧定子铁芯(3)、磁轴承右侧定子铁芯(5)；磁轴承左侧定子铁芯(3)、磁轴承右侧定子铁芯(5)之间设置有隔磁铝环（4）；磁轴承左侧定子铁芯(3)、磁轴承右侧定子铁芯(5)均呈E形结构，定子槽内分别绕制有控制绕组(10)，控制绕组（10）产生控制磁通（17、21）。A permanent magnet bias single-degree-of-freedom axial magnetic bearing, comprising a stator and a rotor core (11), characterized in that: the rotor core (11) comprises an axial part and a radial part; the stator comprises a The axial part of the rotor core (11), and with the radial part of the rotor core (11) as the symmetrical center, the left iron core bridge iron core (1) and the right iron core bridge iron core ( 7); the left ring permanent magnet (2), the right ring permanent magnet (6); the left stator core of the magnetic bearing (3), the right stator core of the magnetic bearing (5); the left stator core of the magnetic bearing (3) There is a magnetic isolation aluminum ring (4) between the stator core (5) on the right side of the magnetic bearing; the stator core (3) on the left side of the magnetic bearing and the stator core (5) on the right side of the magnetic bearing are both E shaped structure, the stator slots are respectively wound with control windings (10), and the control windings (10) generate control magnetic fluxes (17, 21).
本实用新型进一步技术改进方案是：The further technical improvement scheme of the utility model is:
所述磁轴承左侧定子铁芯(3)、磁轴承右侧定子铁芯(5)均由上、下位置设置的吸力圆盘(12、13)以及中间位置设置的控制圆盘（8、9）构成，控制绕组(10)绕制于吸力圆盘(12、13)与控制圆盘（8、9）之间。The stator iron core (3) on the left side of the magnetic bearing and the stator iron core (5) on the right side of the magnetic bearing are all composed of the suction discs (12, 13) arranged at the upper and lower positions and the control discs (8, 13) arranged at the middle position 9) Composition, the control winding (10) is wound between the suction discs (12, 13) and the control discs (8, 9).
本实用新型进一步技术改进方案是：The further technical improvement scheme of the utility model is:
所述控制圆盘（8、9）与转子铁芯（11）径向部分之间的气隙长度大于吸力圆盘（12、13）与转子铁芯（11）径向部分之间的气隙长度，且吸力圆盘（12、13）与转子铁芯（11）径向部分之间的气隙长度小于磁轴承左侧定子铁芯(3)和磁轴承右侧定子铁芯(5)与转子铁芯（11）轴向部分之间的气隙长度。The length of the air gap between the control discs (8, 9) and the radial part of the rotor core (11) is greater than the air gap between the suction discs (12, 13) and the radial part of the rotor core (11) length, and the air gap length between the suction discs (12, 13) and the radial part of the rotor core (11) is smaller than the stator core (3) on the left side of the magnetic bearing and the stator core (5) on the right side of the magnetic bearing and The length of the air gap between the axial parts of the rotor core (11).
本实用新型进一步技术改进方案是：The further technical improvement scheme of the utility model is:
所述左侧环形永磁体(2)、右侧环形永磁体(6)均为轴向充磁的环形永磁体，为磁轴承提供偏置磁通。Both the left annular permanent magnet (2) and the right annular permanent magnet (6) are axially magnetized annular permanent magnets, which provide bias magnetic flux for the magnetic bearing.
本实用新型进一步技术改进方案是：The further technical improvement scheme of the utility model is:
所述隔磁铝环（4）由整块铝材制成，将左右两侧磁路相隔开，且减少漏磁。The magnetic isolation aluminum ring (4) is made of a whole piece of aluminum, which separates the magnetic circuits on the left and right sides and reduces magnetic flux leakage.
本实用新型进一步技术改进方案是：The further technical improvement scheme of the utility model is:
所述左侧铁芯桥铁芯(1)、磁轴承左侧定子铁芯(3)、磁轴承右侧定子铁芯(5)、右侧铁芯桥铁芯(7) 、转子铁芯（11）均采用具有良好轴向和径向导磁性能的材料制成。The left iron core bridge iron core (1), the magnetic bearing left stator iron core (3), the magnetic bearing right stator iron core (5), the right iron core bridge iron core (7), the rotor iron core ( 11) All are made of materials with good axial and radial magnetic permeability.
本实用新型进一步技术改进方案是：The further technical improvement scheme of the utility model is:
所述左侧环形永磁体(2)、右侧环形永磁体(6)均为稀土永磁材料制成。Both the left ring permanent magnet (2) and the right ring permanent magnet (6) are made of rare earth permanent magnet materials.
本实用新型与现有技术相比，具有以下明显优点：Compared with the prior art, the utility model has the following obvious advantages:
一、本实用新型永磁偏置单自由度轴向磁轴承，是由两个轴向磁化的环形永磁体2和6分别提供左侧偏置磁通15、16和右侧偏置磁通19、20，控制绕组10产生控制磁通17和21，相应位置的偏置磁通和控制磁通相互叠加，通过轴向位移闭环控制，保证定、转子之间气隙均匀，实现转子轴向稳定悬浮。1. The permanent magnet bias single-degree-of-freedom axial magnetic bearing of the present invention is provided by two axially magnetized ring-shaped permanent magnets 2 and 6, which respectively provide the left bias magnetic flux 15, 16 and the right bias magnetic flux 19 , 20, the control winding 10 generates the control magnetic flux 17 and 21, the bias magnetic flux and the control magnetic flux at the corresponding positions are superimposed on each other, through the closed-loop control of the axial displacement, the air gap between the stator and the rotor is guaranteed to be uniform, and the rotor is axially stable suspended.
二、本实用新型采用隔磁铝环保证左、右两侧的偏置磁通相互隔离，减少漏磁；2. The utility model adopts a magnetic isolation aluminum ring to ensure that the bias fluxes on the left and right sides are isolated from each other and reduce magnetic flux leakage;
三、磁轴承左、右侧定子铁芯制成E型结构，控制磁通17和21仅经过控制圆盘和吸力圆盘形成闭合路径，不经过磁阻大的永磁体，具有可产生较大的轴向悬浮力、低功耗、控制简单和易于实现等优点，可用于飞轮储能、各种高速机床主轴电机和密封泵类、离心机、压缩机、高速小型硬盘驱动装置等领域。3. The left and right stator cores of the magnetic bearing are made into an E-shaped structure. The control magnetic fluxes 17 and 21 only pass through the control disc and the suction disc to form a closed path, and do not pass through the permanent magnet with large magnetic resistance, which can generate large With the advantages of axial suspension force, low power consumption, simple control and easy implementation, it can be used in flywheel energy storage, various high-speed machine tool spindle motors and sealed pumps, centrifuges, compressors, high-speed small hard disk drives and other fields.
附图说明Description of drawings
图1为本实用新型永磁偏置单自由度轴向磁轴承结构示意图；Fig. 1 is a schematic diagram of the structure of the utility model permanent magnet bias single-degree-of-freedom axial magnetic bearing;
图2为本实用新型永磁偏置单自由度轴向磁轴承磁路示意图。Fig. 2 is a schematic diagram of the magnetic circuit of the permanent magnet bias single-degree-of-freedom axial magnetic bearing of the present invention.
具体实施方式detailed description
本实用新型基于的原理是：轴向充磁的左侧环形永磁体2产生左侧静态偏置磁通14，左侧静态偏置磁通14从左侧环形永磁体2的N极出发，经过磁轴承左侧定子铁芯3，分成两部分，即磁通15、磁通16，由吸力圆盘12进入轴向工作气隙、转子铁芯11的径向部分、转子铁芯11的轴向部分、左侧铁芯桥铁芯气隙、左侧铁芯桥铁芯1回到左侧环形永磁体2的S极，形成闭合磁路。轴向充磁的右侧环形永磁体6产生右侧静态偏置磁通18，右侧静态偏置磁通18从右侧环形永磁体6的N极出发，经过磁轴承右侧定子铁芯5，分成两部分，即磁通19、磁通20，由吸力圆盘13进入轴向工作气隙、转子铁芯11的径向部分、转子铁芯11的轴向部分、右侧铁芯桥铁芯气隙、右侧铁芯桥铁芯7回到右侧环形永磁体6的S极，形成闭合磁路，控制绕组10通电产生的左侧控制磁通17和右侧控制磁通21起调节作用，用来改变磁轴承转子铁芯11径向部分的两侧气隙磁场的强弱，通过位移闭环控制，保持定、转子轴向之间的气隙均匀，实现转子轴向稳定悬浮。The utility model is based on the principle that the axially magnetized left annular permanent magnet 2 produces a left static bias magnetic flux 14, and the left static bias magnetic flux 14 starts from the N pole of the left annular permanent magnet 2, passes through The stator core 3 on the left side of the magnetic bearing is divided into two parts, namely the magnetic flux 15 and the magnetic flux 16, which enter the axial working air gap from the suction disk 12, the radial part of the rotor core 11, and the axial part of the rotor core 11. Part, the left iron core bridge iron core air gap, the left iron core bridge iron core 1 returns to the S pole of the left annular permanent magnet 2 to form a closed magnetic circuit. The axially magnetized right annular permanent magnet 6 generates the right static bias magnetic flux 18, and the right static bias magnetic flux 18 starts from the N pole of the right annular permanent magnet 6 and passes through the right stator core 5 of the magnetic bearing , divided into two parts, namely the magnetic flux 19 and the magnetic flux 20, which enter the axial working air gap from the suction disc 13, the radial part of the rotor core 11, the axial part of the rotor core 11, and the right core bridge iron Core air gap, the right iron core bridge iron core 7 returns to the S pole of the right annular permanent magnet 6 to form a closed magnetic circuit, and the left control magnetic flux 17 and the right control magnetic flux 21 generated by the control winding 10 are regulated together The function is to change the strength of the air gap magnetic field on both sides of the radial part of the magnetic bearing rotor core 11. Through the closed-loop control of the displacement, the air gap between the stator and the rotor can be kept uniform, and the rotor can be stably suspended in the axial direction.
如图1所示，本发明由左侧铁芯桥铁芯1、左侧环形永磁体2、磁轴承左侧定子铁芯3、隔磁铝环4、磁轴承右侧定子铁芯5、右侧环形永磁体6、右侧铁芯桥铁芯7和转子铁芯11组成。磁轴承左侧定子铁芯3制成E型结构，中间为控制圆盘8、上下位置是吸力圆盘12，在吸力圆盘12和控制圆盘8之间嵌入控制绕组10，通电产生控制磁通17；磁轴承右侧定子铁芯5也制成E型结构，中间为控制圆盘9、上下位置是吸力圆盘13，在吸力圆盘13和控制圆盘9之间嵌入控制绕组10，通电产生控制磁通21；控制圆盘8、9与转子铁芯11径向部分之间的气隙长度大于吸力圆盘12、13与转子铁芯11径向部分之间的气隙长度，且磁轴承左侧定子铁芯3、磁轴承右侧定子铁芯5与转子铁芯11轴向部分之间的气隙长度大于吸力圆盘12、13与转子铁芯11径向部分之间的气隙长度。左侧铁芯桥铁芯1、磁轴承左侧定子铁芯3、磁轴承右侧定子铁芯5、右侧铁芯桥铁芯7和转子铁芯11均由轴向和径向导磁性能良好的材料制成，左侧环形永磁体2、右侧环形永磁体6均采用轴向磁化，左侧环形永磁体2 安装在左侧铁芯桥铁芯1、磁轴承左侧定子铁芯3之间，产生静态偏置磁场14。右侧环形永磁体6安装在右侧铁芯桥铁芯7、磁轴承右侧定子铁芯5之间，产生静态偏置磁场18。左侧铁芯桥铁芯1、右侧铁芯桥铁芯7为偏置磁通提供磁路，四个控制绕组10可采用如图1所示的绕线方式串联而成，仅需一个逆变器就可以实现控制电流的调节。As shown in Figure 1, the present invention consists of a left iron core bridge iron core 1, a left annular permanent magnet 2, a magnetic bearing left stator iron core 3, a magnetic isolation aluminum ring 4, a magnetic bearing right stator iron core 5, a right The side annular permanent magnet 6, the right iron core bridge iron core 7 and the rotor iron core 11 are formed. The stator core 3 on the left side of the magnetic bearing is made into an E-shaped structure, with the control disc 8 in the middle and the suction disc 12 at the upper and lower positions. The control winding 10 is embedded between the suction disc 12 and the control disc 8, and the control magnetic field is generated by electrification. Pass 17; the stator core 5 on the right side of the magnetic bearing is also made into an E-shaped structure, the middle is the control disc 9, and the upper and lower positions are the suction discs 13, and the control winding 10 is embedded between the suction disc 13 and the control disc 9, The control magnetic flux 21 is generated by electrification; the length of the air gap between the control discs 8, 9 and the radial part of the rotor core 11 is greater than the length of the air gap between the suction discs 12, 13 and the radial part of the rotor core 11, and The air gap length between the stator core 3 on the left side of the magnetic bearing, the stator core 5 on the right side of the magnetic bearing and the axial part of the rotor core 11 is longer than the air gap between the suction discs 12, 13 and the radial part of the rotor core 11. gap length. The left iron core bridge core 1, the magnetic bearing left stator core 3, the magnetic bearing right stator core 5, the right iron core bridge core 7 and the rotor core 11 all have good axial and radial magnetic permeability The left annular permanent magnet 2 and the right annular permanent magnet 6 are both made of axial magnetization, and the left annular permanent magnet 2 is installed between the left iron core bridge iron core 1 and the left stator iron core 3 of the magnetic bearing. During this period, a static bias magnetic field 14 is generated. The right annular permanent magnet 6 is installed between the right iron core bridge iron core 7 and the right stator iron core 5 of the magnetic bearing to generate a static bias magnetic field 18 . The left iron core bridge iron core 1 and the right iron core bridge iron core 7 provide a magnetic circuit for the bias flux, and the four control windings 10 can be connected in series as shown in Figure 1, and only one inverter is needed. The transformer can realize the regulation of the control current.
如图2所示，轴向充磁的左侧环形永磁体2产生左侧静态偏置磁通14，左侧静态偏置磁通14从左侧环形永磁体2的N极出发，经过磁轴承左侧定子铁芯3，分成两部分，即磁通15、磁通16，由吸力圆盘12进入轴向工作气隙、转子铁芯11的径向部分、转子铁芯11的轴向部分、左侧铁芯桥铁芯气隙、左侧铁芯桥铁芯1回到左侧环形永磁体2的S极，形成闭合磁路。轴向充磁的右侧环形永磁体6产生右侧静态偏置磁通18，右侧静态偏置磁通18从右侧环形永磁体6的N极出发，经过磁轴承右侧定子铁芯5，分成两部分，即磁通19、磁通20、由吸力圆盘13进入轴向工作气隙、转子铁芯11的径向部分、转子铁芯11的轴向部分、右侧铁芯桥铁芯7气隙、右侧铁芯桥铁芯7回到右侧环形永磁体的S极，形成闭合磁路。控制绕组10产生的左侧控制磁通17和右侧控制磁通21，左侧控制磁通17经过吸力圆盘12、控制圆盘8、转子铁芯11的径向部分，轴向工作气隙形成闭合路径；右侧控制控制磁通21经过吸力圆盘13、控制圆盘9、转子铁芯11的径向部分，轴向工作气隙形成闭合路径；由于隔磁铝环4，保证左、右两侧偏置磁通互不干扰，且控制磁通不经过环形永磁体，降低功耗和增大轴向悬浮力。As shown in Figure 2, the axially magnetized left annular permanent magnet 2 generates a left static bias magnetic flux 14, and the left static bias magnetic flux 14 starts from the N pole of the left annular permanent magnet 2 and passes through the magnetic bearing The left stator core 3 is divided into two parts, namely the magnetic flux 15 and the magnetic flux 16, which enter the axial working air gap from the suction disc 12, the radial part of the rotor core 11, the axial part of the rotor core 11, The left iron core bridge iron core air gap, the left iron core bridge iron core 1 returns to the S pole of the left annular permanent magnet 2, forming a closed magnetic circuit. The axially magnetized right annular permanent magnet 6 generates the right static bias magnetic flux 18, and the right static bias magnetic flux 18 starts from the N pole of the right annular permanent magnet 6 and passes through the right stator core 5 of the magnetic bearing , divided into two parts, namely magnetic flux 19, magnetic flux 20, entering the axial working air gap from the suction disc 13, the radial part of the rotor core 11, the axial part of the rotor core 11, and the right side core bridge iron The air gap of the core 7 and the iron core bridge iron core 7 on the right return to the S pole of the annular permanent magnet on the right to form a closed magnetic circuit. The left control magnetic flux 17 and the right control magnetic flux 21 generated by the control winding 10, the left control magnetic flux 17 passes through the radial part of the suction disc 12, the control disc 8, and the rotor core 11, and the axial working air gap A closed path is formed; the control magnetic flux 21 on the right side passes through the radial part of the suction disc 13, the control disc 9, and the rotor core 11, and the axial working air gap forms a closed path; due to the magnetic isolation aluminum ring 4, the left, The bias flux on the right side does not interfere with each other, and the control flux does not pass through the ring permanent magnet, which reduces power consumption and increases the axial suspension force.
这种永磁偏置单自由度轴向磁轴承利用两个轴向充磁的环形永磁体来建立偏置磁通，定、转子铁芯均由轴向和径向导磁性能良好的材料制成，环形永磁体采用轴向磁化，环形永磁体为径向圆环，沿轴向充磁，采用磁性能良好的稀土永磁体或铁氧体永磁体，控制绕组按照图1所示方向串联而成，采用导电良好的电磁线圈绕制后侵漆烘干而成。This kind of permanent magnet bias single degree of freedom axial magnetic bearing uses two axially magnetized annular permanent magnets to establish bias magnetic flux, and the stator and rotor cores are made of materials with good axial and radial magnetic permeability , the annular permanent magnet adopts axial magnetization, and the annular permanent magnet is a radial ring, which is magnetized along the axial direction. Rare earth permanent magnets or ferrite permanent magnets with good magnetic properties are used, and the control windings are connected in series according to the direction shown in Figure 1. , It is formed by winding an electromagnetic coil with good conductivity and then drying it with paint.
本实用新型方案所公开的技术手段不仅限于上述实施方式所公开的技术手段，还包括由以上技术特征任意组合所组成的技术方案。应当指出，对于本技术领域的普通技术人员来说，在不脱离本实用新型原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本实用新型的保护范围。The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548202.4U CN205663759U (en) | 2016-06-08 | 2016-06-08 | Permanent magnetism biasing single degree of freedom axial magnetic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620548202.4U CN205663759U (en) | 2016-06-08 | 2016-06-08 | Permanent magnetism biasing single degree of freedom axial magnetic bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205663759U true CN205663759U (en) | 2016-10-26 |
Family
ID=57156631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620548202.4U Expired - Fee Related CN205663759U (en) | 2016-06-08 | 2016-06-08 | Permanent magnetism biasing single degree of freedom axial magnetic bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205663759U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840654A (en) * | 2016-06-08 | 2016-08-10 | 淮阴工学院 | Permanent magnet bias single-degree-of-freedom axial magnetic bearing |
| CN106979225A (en) * | 2017-04-11 | 2017-07-25 | 南京邮电大学 | A kind of taper axial magnetic bearing |
| CN109510370A (en) * | 2018-12-18 | 2019-03-22 | 南京磁谷科技有限公司 | A kind of magnetic axis holder structure of embedded magnetic shield |
| WO2024078084A1 (en) * | 2022-10-14 | 2024-04-18 | 珠海格力电器股份有限公司 | Magnetic suspension active three-degree-of-freedom bearing, motor, and compressor |
-
2016
- 2016-06-08 CN CN201620548202.4U patent/CN205663759U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840654A (en) * | 2016-06-08 | 2016-08-10 | 淮阴工学院 | Permanent magnet bias single-degree-of-freedom axial magnetic bearing |
| CN106979225A (en) * | 2017-04-11 | 2017-07-25 | 南京邮电大学 | A kind of taper axial magnetic bearing |
| CN109510370A (en) * | 2018-12-18 | 2019-03-22 | 南京磁谷科技有限公司 | A kind of magnetic axis holder structure of embedded magnetic shield |
| WO2024078084A1 (en) * | 2022-10-14 | 2024-04-18 | 珠海格力电器股份有限公司 | Magnetic suspension active three-degree-of-freedom bearing, motor, and compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105864292A (en) | Permanent magnet polarization three-degree-of-freedom magnetic bearing | |
| CN101149077B (en) | Permanent Magnet Offset Axial Radial Magnetic Bearings | |
| CN101581336B (en) | Permanent Magnetic Offset Axial Magnetic Bearings | |
| CN100458199C (en) | A permanent magnetic bias axial magnetic suspension bearing | |
| CN104265761B (en) | The three freedom degree mixed magnetic bearing of a kind of axle-radially | |
| CN104533948B (en) | A four-degree-of-freedom active-passive hybrid magnetic bearing with permanent magnet bias outer rotor | |
| CN204186801U (en) | A kind of low power consumption axial hybrid magnetic bearing | |
| CN204186802U (en) | A kind of Novel shaft-radial three freedom degree mixed magnetic bearing | |
| CN104214216B (en) | A four-degree-of-freedom inner rotor magnetic bearing | |
| CN106015331B (en) | A kind of low power consumption permanent magnet biased five degree of freedom integrated magnetic bearing | |
| CN103925291B (en) | A kind of permanent magnet bias mixing axial magnetic bearing | |
| CN108825655A (en) | A kind of radial-axial Three Degree Of Freedom magnetic bearing with magnetism-isolating loop | |
| CN102072249A (en) | Large-bearing-capacity radial magnetic bearing | |
| CN106050918A (en) | Permanent magnet biased five-degree-of-freedom integrated magnetic suspension supporting system | |
| CN101893038A (en) | Permanent magnet biased axial magnetic bearing | |
| CN101526107B (en) | Hybrid axial magnetic bearing with permanent magnets on the rotor | |
| CN108757731A (en) | A kind of radial-axial Three Degree Of Freedom magnetic bearing of permanent magnet axial magnetized | |
| CN105840654A (en) | Permanent magnet bias single-degree-of-freedom axial magnetic bearing | |
| CN205663759U (en) | Permanent magnetism biasing single degree of freedom axial magnetic bearing | |
| CN104141685A (en) | Driving and driven inner rotor magnetic bearing | |
| CN106321631A (en) | Five-degree-of-freedom magnetic suspension bearing system | |
| CN100494707C (en) | Three magnetic pole permanent magnetism bias radial magnetic bearing | |
| CN204284204U (en) | A kind of low power consumption permanent magnet biased axial hybrid magnetic bearing | |
| CN101832335B (en) | Permanent magnet biased axial-radial magnetic bearing | |
| CN103939465B (en) | A kind of Simple Freedom Magnetic Bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191014 Address after: 223441 No.9 Xiangyun Road, economic development zone, Lianshui County, Huai'an City, Jiangsu Province Patentee after: Huaian Zhong Yi Motor Co., Ltd. Address before: 223005 Jiangsu city in Huaian Province, while the economic and Technological Development Zone, Road No. 1 Patentee before: Huaijin Polytechnical College |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161026 Termination date: 20210608 |