WO2006122448A1 - Magnetic suspension bearing - Google Patents

Magnetic suspension bearing Download PDF

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Publication number
WO2006122448A1
WO2006122448A1 PCT/CN2005/000697 CN2005000697W WO2006122448A1 WO 2006122448 A1 WO2006122448 A1 WO 2006122448A1 CN 2005000697 W CN2005000697 W CN 2005000697W WO 2006122448 A1 WO2006122448 A1 WO 2006122448A1
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WO
WIPO (PCT)
Prior art keywords
outer layer
bearing
magnets
magnetic
inner layer
Prior art date
Application number
PCT/CN2005/000697
Other languages
English (en)
French (fr)
Inventor
Chuy-Nan Chio
Original Assignee
Chuy-Nan Chio
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chuy-Nan Chio filed Critical Chuy-Nan Chio
Priority to AU2005331870A priority Critical patent/AU2005331870A1/en
Priority to US11/913,312 priority patent/US20080181548A1/en
Priority to PCT/CN2005/000697 priority patent/WO2006122448A1/zh
Priority to CNA2005800494922A priority patent/CN101166914A/zh
Priority to DE112005003574T priority patent/DE112005003574T5/de
Publication of WO2006122448A1 publication Critical patent/WO2006122448A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/048—Bearings magnetic; electromagnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/058—Bearings magnetic; electromagnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/0423—Passive magnetic bearings with permanent magnets on both parts repelling each other
    • F16C32/0429—Passive magnetic bearings with permanent magnets on both parts repelling each other for both radial and axial load, e.g. conical magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers

Definitions

  • the invention relates to a trajectory magnetic bearing, in particular to a method for generating a magnetic levitation function as a bearing by using the same principle of magnet repulsion, instead of a conventional ball bearing, to avoid heat generation of the bearing internal components, thereby prolonging the service life of the bearing.
  • the outer layer of the bearing and the magnets of the inner layer can be stacked or combined according to requirements to improve the bearing capacity of the bearing and further improve the performance of the bearing.
  • the design of the traditional bearing mostly uses a ball bearing to fix the shaft.
  • the ball bearing when used, the ball in the ball bearing will rub against the shaft center due to the rotation of the shaft center, thereby generating noise, and the shaft and the ball are rubbed.
  • the shaft is not only easy to disperse the dust generated by the wear to other members, but also the shaft generates friction with the balls to generate heat, which leads to a reduction in the life of the entire bearing main member.
  • a primary object of the present invention is to provide a track magnetic bearing which is arranged in a staggered arrangement by alternating the outer layer of the bearing and the inner layer of the magnet to form a gap between the magnet and the magnet, and the magnetic floating effect is generated by the principle of the same polarity of the magnet.
  • a secondary object of the present invention is to provide a trajectory magnetic bearing that utilizes a gap between the outer layer and the inner layer to protect the bearing members from each other when the magnets are moved.
  • Another object of the present invention is to provide a track maglev bearing that replaces a conventional ball bearing to reduce friction when the bearing action exceeds the load to generate heat, thereby prolonging the life of the bearing and thereby reducing the cost of component renewal.
  • a track magnetic bearing capable of achieving the above object, comprising: an outer layer covered with a plurality of a magnet, an inner layer, coated with a plurality of magnets; an outer casing disposed on one side of the outer layer, covering the outer layer and insulating the magnetic body; an inner casing disposed inside One side of the layer, which coats the inner layer and is magnetically isolated.
  • the outer layer is a magnetically permeable material.
  • the inner layer is a magnetically permeable material
  • the outer casing is an insulating material.
  • the inner casing is an insulating material.
  • the magnet of the inner layer and the magnet of the outer layer are alternately stacked one on another, and a gap is formed.
  • a gap is formed between the inner layer and the upper and lower contact ends of the outer layer.
  • the distance between the inner layer and the outer layer is slightly smaller than the gap between the magnets.
  • the magnetic floating effect can be generated by using the principle of the same polarity repelling of the magnet to replace the conventional ball bearing to reduce the friction when the shaft is rotated, thereby improving the problems of the conventional ball bearing noise, heat generation and dust generation. In the same working environment, it can provide higher speed operation, which can extend the life of bearings and other components.
  • the present invention can provide a gap formed by the upper and lower contact ends when the inner layer and the outer layer are combined, and the protective magnets do not collide with each other when the shaft center is placed or rotated beyond the load.
  • the inner casing is coated on the inner side of the inner layer to isolate the magnetism of the magnet to prevent the member from being magnetically damaged to ensure the normal operation of the bearing member.
  • Figure 1 is an exploded perspective view of the present invention.
  • Figure 2 is a cross-sectional view of the present invention.
  • Figure 3 is a combination diagram of the present invention.
  • Figure 4 is a diagram of an embodiment of the present invention.
  • Figure 5 is a diagram of another embodiment of the present invention.
  • Fig. 5A is a view showing still another embodiment of the present invention. Best mode for carrying out the invention
  • the present invention is a track magnetic bearing, which mainly comprises:
  • the outer layer 1 is a magnetically permeable material so that it conducts and is magnetic;
  • the inner layer 2 is a magnetically permeable material that conducts and is magnetically filled; an embodiment of the magnetic pole can be seen in FIG.
  • An outer casing 3 is disposed on one side of the outer layer 1 for covering the outer layer 1 and is magnetically insulated to prevent magnetic properties from affecting other members; the outer casing 3 may be an insulating material;
  • An inner sleeve 4 is disposed on the inner side 2 side for covering the inner layer 2 and is insulated from magnetism to prevent magnetic influence on the shaft center; the inner sleeve body 4 may be an insulating material;
  • the outer layer 1 when the magnetic floating bearing is assembled, the outer layer 1 is combined with the inner layer 2, and the magnet 5 of the inner layer 2 and the magnet 5 of the outer layer 1 are alternately arranged in a staggered arrangement (the inner layer magnet N is extremely long)
  • the magnet of the outer layer N is extremely short, and the inner layer 2 and the magnet 5 of the outer layer 1 form an appropriate space in front and rear and up and down, and the magnetic floating effect is generated by the principle of the same polarity repelling by the magnet 5, and the magnet 5 of the inner layer 2 and the outer layer 2
  • the magnets 5 of the layer 1 are not in contact with each other, so that the bearings do not rub against each other when rotated, thereby improving the noise and abrasion to cause the problem of dust, and the shaft 6 does not generate heat when it rotates, and the bearings and others can be extended. The life of the component.
  • the outer side of the outer layer 1 is covered by the outer casing 3 so as to isolate the magnetic force transmitted by the magnet 5 of the outer layer 1, and the inner side of the inner layer 2 is covered with the inner casing 4 to isolate the magnet 5
  • the magnetic properties of the magnets are not transmitted to other components of the bearing to prevent the components from being damaged by magnetic damage and to ensure proper operation of the bearing components.
  • the magnetic pole 51 of the magnet 5 can have other embodiments, as shown in FIG. 5 and FIG. 5A.
  • the magnetic floating effect is also produced by the principle that the magnet 5 is repelled by the same sex.
  • the trajectory magnetic bearing provided by the invention can generate magnetic levitation by using the principle of magnet repulsion of the same sex, instead of the traditional ball bearing, to reduce the friction when the shaft rotates, to improve the noise, heat generation and dust generation of the conventional ball bearing.
  • the problem is that in the same working environment, higher speed operation can be provided, and the life of the bearing and other components can be extended.
  • the present invention also forms a gap formed by the upper and lower contact ends when the inner layer and the outer layer are combined, in the axial center. When placed or turned over the load, the protective magnets do not collide with each other.
  • the invention is easy to industrially produce and has broad application prospects.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Description

轨迹磁浮轴承 技术领域
本发明涉及一种轨迹磁浮轴承， 特别是涉及一种利用磁铁同性相斥的原理 产生磁浮作用作为轴承， 而取代传统滚珠轴承， 以避免轴承内构件互相摩擦而 生热， 从而延长轴承的使用寿命， 并可依需求将轴承的外层及内层的磁铁堆叠 或组合， 以提高轴承的承载， 而进一步提升其轴承的效能。 现有技术
目前， 传统轴承的设计大多以滚珠轴承来固定轴心， 但是使用滚珠轴承时， 由于轴心转动时， 该滚珠轴承内的滚珠会与轴心产生磨擦， 进而产生噪音， 且 轴心与滚珠磨擦后， 该轴心不但容易因磨损而产生的屑粉散布到其它构件上， 而且轴心会与滚珠产生磨擦时产生热能， 进而导致整个轴承主件寿命减少。
再有， 为改善传统滚珠轴承减少转动时的摩擦， 大都在滚珠上擦涂适当的 油料作为润滑， 但是， 一但使用时间一久， 轴承内的油料与空气中的灰尘混合， 而使油料变黑变稠， 亦可能沾黏到其它构件上， 间接影响整个轴承的运作。
由此可见， 上述传统的轴承仍有诸多缺失， 实非一种良善的设计， 而亟待 加以改良。 发明内容
本发明的主要目的是提供一种轨迹磁浮轴承， 通过轴承外层与内层的磁铁 呈上下交错堆叠排列， 使磁铁与磁铁间形成一¾隙， 利用磁铁同性相斥的原理 产生磁浮作用。
本发明的次要目的是提供一种轨迹磁浮轴承， 利用外层与内层间产生一空 隙， 进而保护磁铁动作时不相互撞击， 以保护轴承构件。
本发明的另一目的是提供一种轨迹磁浮轴承代替传统滚珠轴承， 以减少轴 承动作超过负荷时互相摩擦而生热， 以延长轴承的寿命， 进而降低构件更新的 成本。
本发明的又一目的是提供一种轨迹磁浮轴承， 通过磁浮作用使轴承转动时 不会互相摩擦， 进而使该轴承可更高速运转。
可达成上述目的一种轨迹磁浮轴承， 它包括有： 一外层， 其包覆有复数个 磁铁； 一内层， 其包覆有复数个磁铁； 一外套体， 设于所述外层一侧， 其包覆 所述外层并使其隔绝磁性； 一内套体， 设于所述内层一侧， 其包覆所述内层并 使其隔绝磁性。
上述的轨迹磁浮轴承中， 所述外层为一导磁材料。
上述的轨迹磁浮轴承中， 所述内层为一导磁材料
上述的轨迹磁浮轴承中， 所述外套体为一隔绝材料。
上述的轨迹磁浮轴承中， 所述内套体为一隔绝材料。
上述的轨迹磁浮轴承中， 所述内层的磁铁与外层的磁铁呈上下交错堆叠排 列， 并形成有一空隙。
上述的轨迹磁浮轴承中， 所述内层与外层上下接触端形成有一空隙。
上述的轨迹磁浮轴承中， 所述内层与外层间空隙的距离较磁铁间的空隙略 小。
本发明所提供的轨迹磁浮轴承， 其具有以下优点：
1、 本发明中， 可通过利用磁铁同性相斥的原理产生磁浮作用， 以代替传 统滚珠轴承， 以减少轴心转动时的摩擦， 以改良传统滚珠轴承噪音、 生热及屑 粉产生的问题， 在相同的工作环境下， 可提供更高速的运转， 相对可延长轴承 及其它构件的寿命。
2、 本发明可通过内层与外层结合时上下接触端形成的空隙， 在轴心置入 或转动超过负荷时， 保护磁铁不至相互撞击。
3、 本发明中， 通过将外套体包覆在外层外侧， 将内套体包覆在内层的内 侧， 从而隔绝磁铁的磁性， 以防止构件受磁性破坏而确保轴承构件可正常的运 作。 附图说明
图 1为本发明的分解示意图。
图 2为本发明的剖面图。
图 3为本发明的组合图。
图 4为本发明的实施例图。
图 5为本发明的另一实施例图。
图 5A为本发明的再一实施例图。 本发明最佳实施方式
为便于更进一步对本发明的构造、 使用及其特征有更深一层， 明确、 详实 的认识与了解， 举出较佳的实施例， 配合附图详细说明如下：
首先请参阅图 1、 图 2及图 3所示， 本发明为一种轨迹磁浮轴承， 其主要包 含：
一外层 1， 其用于包覆复数个磁铁 5， 利用外层 1将磁铁 5的 S极予以完全 包覆， 使磁铁 5的 N极在外 （磁铁 5的极性位置可依需求调换）， 此外， 外层 1 为一导磁材料， 从而使之传导并布满磁性；
一内层 2， 其用于包覆复数个磁铁 5， 利用内层 2将磁铁 5的 S极予以完全 包覆， 使磁铁 5的 N极在外 （磁铁 5的极性位置可依需求调换）， 此外， 内层 2 为一导磁材料， 从而使之传导并布满磁性； 磁极端的一种实施方式可参阅图 2。
一外套体 3， 设于外层 1一侧， 用于包覆外层 1并使其隔绝磁性， 以防止磁 性影响其它构件； 该外套体 3可为一隔绝材料；
一内套体 4， 设于内层 2—侧， 用于包覆内层 2并使其隔绝磁性， 以防止磁 性影响到轴心； 该内套体 4可为一隔绝材料；
如上述构造， 当组装该磁浮轴承时， 将外层 1与内层 2相结合， 内层 2的 磁铁 5与外层 1的磁铁 5呈上下交错堆叠排列 （内层的磁铁 N极较长时外层的 磁铁 N极较短）， 而使内层 2与外层 1的磁铁 5前后及上下形成一适当空隙， 利 用磁铁 5同性相斥的原理产生磁浮作用， 内层 2的磁铁 5与外层 1的磁铁 5不 相互接触， 使该轴承转动时不会互相摩擦， 进而改良噪音及磨损而产生屑粉的 问题， 且轴心 6转动时亦不会而产生热能， 而可延长轴承及其它构件的寿命。
请再参阅图 2、 图 4所示， 内层 2与外层 1结合时上下接触端形成一空隙， 该空隙的距离较磁铁 5的空隙略小， 当该轴心 6置入或转动超过负荷时， 内层 2 受到挤压而向外层 1移动， 使内层 2与外层 1上下的空隙相互接触而顶抵， 便 使内层 2与外层 1的磁铁 5不会相互撞击，从而保护磁铁 5，而更进而保护轴承 的构件。
再者， 通过外套体 3包覆外层 1外侧， 以使其隔离外层 1的磁铁 5所传导 的磁性， 并利用内套体 4包覆该内层 2的内侧， 以使其隔绝磁铁 5的磁性， 使 磁性不会传导到轴承的其它构件上， 以防止构件受磁性破坏而影响转动， 确保 轴承构件可正常的运作。
此外， 磁铁 5的磁极端 51还可以有其他的实施方式， 如图 5、 图 5A所示， 同样是利用磁铁 5同性相斥的原理产生磁浮作用。
以上所述， 仅为本发明的较佳可行实施例而已， 故举凡依据本发明权利要 求范围所做的等效变化， 理应包含在本发明的保护范围之内。 工业应用性
本发明所提供的轨迹磁浮轴承， 可通过利用磁铁同性相斥的原理产生磁浮 作用， 以代替传统滚珠轴承， 以减少轴心转动时的摩擦， 以改良传统滚珠轴承 噪音、 生热及屑粉产生的问题， 在相同的工作环境下， 可提供更高速的运转， 相对可延长轴承及其它构件的寿命； 此外， 本发明还通过内层与外层结合时上 下接触端形成的空隙， 在轴心置入或转动超过负荷时， 保护磁铁不至相互撞击。 本发明易于工业生产， 并且有广泛的应用前景。

Claims

权利要求
1、 一种轨迹磁浮轴承， 其特征在于， 它包括有：
一外层， 其包覆有复数个磁铁；
一内层， 其包覆有复数个磁铁；
一外套体， 设于所述外层一侧， 其包覆所述外层并使其隔绝磁性； 一内套体， 设于所述内层一侧， 其包覆所述内层并使其隔绝磁性。
2、 根据权利要求 1所述的轨迹磁浮轴承， 其特征在于： 所述外层为一导磁 材料。
3、 根据权利要求 1所述的轨迹磁浮轴承， 其特征在于： 所述内层为一导磁 材料
4、 根据权利要求 1所述的轨迹磁浮轴承， 其特征在于： 所述外套体为一隔 绝材料。
5、 根据权利要求 1所述的轨迹磁浮轴承， 其特征在于： 所述内套体为一隔 绝材料。
6、 根据权利要求 1所述的轨迹磁浮轴承， 其特征在于： 所述内层的磁铁与 外层的磁铁呈上下交错堆叠排列， 并形成有一空隙。
7、 根据权利要求 1所述的轨迹磁浮轴承， 其特征在于： 所述内层与外层上 下接触端形成有一空隙。
8、 根据权利要求 7所述的轨迹磁浮轴承， 其特征在于： 所述内层与外层间 空隙的距离较磁铁间的空隙略小。
PCT/CN2005/000697 2005-05-20 2005-05-20 Magnetic suspension bearing WO2006122448A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2005331870A AU2005331870A1 (en) 2005-05-20 2005-05-20 Magnetic suspension bearing
US11/913,312 US20080181548A1 (en) 2005-05-20 2005-05-20 Magnetic Suspension Bearing
PCT/CN2005/000697 WO2006122448A1 (en) 2005-05-20 2005-05-20 Magnetic suspension bearing
CNA2005800494922A CN101166914A (zh) 2005-05-20 2005-05-20 轨迹磁浮轴承
DE112005003574T DE112005003574T5 (de) 2005-05-20 2005-05-20 Kurven-Magnetschwebelager

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2005/000697 WO2006122448A1 (en) 2005-05-20 2005-05-20 Magnetic suspension bearing

Publications (1)

Publication Number Publication Date
WO2006122448A1 true WO2006122448A1 (en) 2006-11-23

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Application Number Title Priority Date Filing Date
PCT/CN2005/000697 WO2006122448A1 (en) 2005-05-20 2005-05-20 Magnetic suspension bearing

Country Status (5)

Country Link
US (1) US20080181548A1 (zh)
CN (1) CN101166914A (zh)
AU (1) AU2005331870A1 (zh)
DE (1) DE112005003574T5 (zh)
WO (1) WO2006122448A1 (zh)

Cited By (1)

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CN102678747A (zh) * 2012-05-25 2012-09-19 李德亮 一种径轴向磁悬浮轴承
CN103671522B (zh) * 2012-09-12 2018-05-15 张玉宝 一种径轴向磁悬浮轴承
CN105927666B (zh) * 2016-05-18 2018-04-06 中国农业大学 能够快速消除超导磁悬浮转子内部磁力的系统及方法
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