JPH0712126A - Superconductive bearing device - Google Patents
Superconductive bearing deviceInfo
- Publication number
- JPH0712126A JPH0712126A JP15190793A JP15190793A JPH0712126A JP H0712126 A JPH0712126 A JP H0712126A JP 15190793 A JP15190793 A JP 15190793A JP 15190793 A JP15190793 A JP 15190793A JP H0712126 A JPH0712126 A JP H0712126A
- Authority
- JP
- Japan
- Prior art keywords
- inner container
- refrigerant
- bearing device
- superconductor
- stator
- 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.)
- Withdrawn
Links
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
- 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
- F16C32/0436—Passive magnetic bearings with a conductor on one part movable with respect to a magnetic field, e.g. a body of copper on one part and a permanent magnet on the other part
- F16C32/0438—Passive magnetic bearings with a conductor on one part movable with respect to a magnetic field, e.g. a body of copper on one part and a permanent magnet on the other part with a superconducting body, e.g. a body made of high temperature superconducting material such as YBaCuO
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は超電導軸受装置に関
し、特に、固定子として超電導体が用いられ、可動子と
して永久磁石が用いられ、超電導体のマイスナ効果およ
びピン止め効果により可動子を磁気浮上させるような超
電導軸受装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a superconducting bearing device, and more particularly, a superconductor is used as a stator and a permanent magnet is used as a mover, and the mover is magnetically levitated by the Meissner effect and pinning effect of the superconductor. The present invention relates to such a superconducting bearing device.
【０００２】[0002]
【従来の技術】図３は従来の超電導軸受装置の一例を示
す断面図である。図３において、超電導軸受装置は、可
動子３と固定子４とからなり、可動子３の下部には固定
子４に対向するように永久磁石２が設けられ、固定子４
内には永久磁石２に対向するように超電導体１が配置さ
れる。さらに、固定子４内には冷媒注入口５から冷媒が
注入される。この冷媒によって超電導体１が直接冷却さ
れ、超電導体１のマイスナ効果およびピン止め効果によ
り、可動子３が磁気浮上する。ここで、マイスナ効果と
は、超電導体１が示す完全反磁性のことを称し、ピン止
め効果とは超電導体１内の磁界を固定する力を言う。2. Description of the Related Art FIG. 3 is a sectional view showing an example of a conventional superconducting bearing device. In FIG. 3, the superconducting bearing device is composed of a mover 3 and a stator 4, and a permanent magnet 2 is provided below the mover 3 so as to face the stator 4.
The superconductor 1 is arranged inside so as to face the permanent magnet 2. Further, the refrigerant is injected into the stator 4 from the refrigerant injection port 5. The superconductor 1 is directly cooled by this refrigerant, and the mover 3 is magnetically levitated by the Meissner effect and the pinning effect of the superconductor 1. Here, the Meissner effect refers to perfect diamagnetism of the superconductor 1, and the pinning effect refers to a force for fixing the magnetic field in the superconductor 1.
【０００３】[0003]
【発明が解決しようとする課題】上述の図３に示した超
電導軸受装置において、可動子３が磁気浮上する時間
は、固定子４内の冷媒保有量と固定子４の外部からの熱
侵入量によって決まる。ところが、固定子４内の冷媒保
有量は極めて少なく、しかも固定子４への熱侵入量が比
較的大きいため、磁気浮上時間が一般に短く、長時間に
わたって連続して磁気浮上するのが困難であるという欠
点があった。In the superconducting bearing device shown in FIG. 3 described above, the time during which the mover 3 is magnetically levitated depends on the amount of refrigerant held in the stator 4 and the amount of heat intrusion from the outside of the stator 4. Depends on However, since the amount of refrigerant held in the stator 4 is extremely small and the amount of heat entering the stator 4 is relatively large, the magnetic levitation time is generally short, and it is difficult to continuously magnetically levitate for a long time. There was a drawback.
【０００４】それゆえに、この発明の主たる目的は、長
時間にわたって連続的に可動子を磁気浮上できるような
超電導軸受装置を提供することである。Therefore, a main object of the present invention is to provide a superconducting bearing device capable of continuously magnetically levitating a mover for a long time.
【０００５】[0005]
【課題を解決するための手段】請求項１に係る発明は、
固定子として超電導体が用いられ、可動子として永久磁
石が用いられる超電導軸受装置において、固定子が取付
けられ、その内部に冷媒が注入される内側容器と、内側
容器を収納しかつ内側容器の周囲を真空状態に保つ外側
容器と、内側容器内に冷媒を供給するための冷媒供給手
段とを備えて構成される。The invention according to claim 1 is
In a superconducting bearing device in which a superconductor is used as a stator and a permanent magnet is used as a mover, an inner container to which a stator is attached, and a refrigerant is injected into the inner container, and an inner container that accommodates the inner container and surrounds the inner container And a refrigerant supply means for supplying a refrigerant into the inner container.
【０００６】請求項２に係る発明では、請求項１の冷媒
供給手段として、内側容器に注入された冷媒を回収して
再度冷却する冷凍手段と、冷却された冷媒を内側容器に
供給するポンプとを含む。In the invention according to claim 2, as the refrigerant supply means of claim 1, a refrigerating means for collecting the refrigerant injected into the inner container and cooling it again, and a pump for supplying the cooled refrigerant to the inner container. including.
【０００７】[0007]
【作用】この発明に係る超電導軸受装置は、内側容器に
超電導体が取付けられ、内側容器内に冷媒が注入されて
超電導体が冷却され、この内側容器を外側容器に収納し
てその周囲を真空状態にし、内側容器内に冷媒を供給す
ることにより、断熱効果を高めて熱侵入量を小さくし、
内側容器内に冷媒を供給し続けることにより、長時間に
わたって連続して可動子を磁気浮上させる。In the superconducting bearing device according to the present invention, the superconductor is attached to the inner container, the superconductor is cooled by injecting the refrigerant into the inner container, the inner container is housed in the outer container, and the surrounding space is vacuumed. State, and by supplying the refrigerant into the inner container, enhance the heat insulation effect and reduce the amount of heat penetration,
By continuously supplying the refrigerant into the inner container, the mover is magnetically levitated continuously for a long time.
【０００８】[0008]
【実施例】図１はこの発明の一実施例の断面図である。
図１を参照して、図３の従来例と同様にして、固定子４
０に対向するように、下部に永久磁石２を有する可動子
３が設けられる。固定子４０は外側容器１１と内側容器
１２とを含み、内側容器１２はその内部が中空であっ
て、その上部に超電導体１が配置される。外側容器１１
は内側容器１２の周囲を真空層１０にして断熱構造にさ
れ、外部からの熱侵入量を減少させる。内側容器１２の
一方側には冷媒注入口５が外側容器１１を貫通するよう
に設けられ、内側容器１２の他方側には冷媒排出口７が
外側容器１１を貫通するように設けられる。1 is a sectional view of an embodiment of the present invention.
Referring to FIG. 1, in the same manner as in the conventional example of FIG.
A mover 3 having a permanent magnet 2 at the bottom is provided so as to face 0. The stator 40 includes an outer container 11 and an inner container 12. The inner container 12 has a hollow inside, and the superconductor 1 is arranged on the upper part thereof. Outer container 11
Has a vacuum layer 10 around the inner container 12 and has a heat insulating structure to reduce the amount of heat penetration from the outside. A refrigerant inlet port 5 is provided on one side of the inner container 12 so as to penetrate the outer container 11, and a refrigerant outlet port 7 is provided on the other side of the inner container 12 so as to penetrate the outer container 11.
【０００９】外部には、冷凍機８とポンプ９とが設けら
れ、冷凍機８で冷却された冷媒がポンプ９により冷媒注
入口５を介して内側容器１２内に送り込まれる。そし
て、送り込まれた冷媒は超電導体１を冷却した後、冷媒
排出口７から冷凍機８に戻され、冷凍機８では冷媒が再
び冷却される。A refrigerator 8 and a pump 9 are provided outside, and the refrigerant cooled by the refrigerator 8 is fed into the inner container 12 by the pump 9 through the refrigerant inlet 5. Then, the fed refrigerant cools the superconductor 1 and then returns to the refrigerator 8 from the refrigerant outlet 7, and the refrigerant is cooled again in the refrigerator 8.
【００１０】このように、内側容器１２を外側容器１１
で囲み、その周囲を真空層１０とすることにより、内側
容器１２の冷却部位を断熱することができ、しかも固定
子４０の表面の結露を防止できる。さらに、冷凍機８に
よって冷媒を冷却し続けることができるので、長時間に
わたって連続的に可動子３を磁気浮上することができ
る。In this way, the inner container 12 is replaced by the outer container 11
By enclosing with and forming the vacuum layer 10 around it, the cooling part of the inner container 12 can be thermally insulated, and further, dew condensation on the surface of the stator 40 can be prevented. Further, since the refrigerant can be continuously cooled by the refrigerator 8, the mover 3 can be magnetically levitated continuously for a long time.
【００１１】図２はこの発明の他の実施例の断面図であ
る。前述の図１に示した実施例は、内側容器１２内の冷
媒を冷凍機８に回収して再び冷却し、ポンプ９により内
側容器１２に供給するようにしたが、この図２に示した
実施例は、冷凍機８およびポンプ９に代えて冷媒タンク
１３を設け、この冷媒タンク１３から冷媒注入口５を介
して内側容器１２内に冷媒を供給し続けるようにしたも
のである。したがって、この実施例においても冷媒タン
ク１３から冷媒を内側容器１２に供給し続けることによ
り、長時間にわたって連続して可動子３を磁気浮上する
ことが可能となる。FIG. 2 is a sectional view of another embodiment of the present invention. In the embodiment shown in FIG. 1 described above, the refrigerant in the inner container 12 is collected in the refrigerator 8, cooled again, and supplied to the inner container 12 by the pump 9. However, the embodiment shown in FIG. In the example, a refrigerant tank 13 is provided instead of the refrigerator 8 and the pump 9, and the refrigerant is continuously supplied from the refrigerant tank 13 into the inner container 12 through the refrigerant inlet 5. Therefore, also in this embodiment, by continuously supplying the refrigerant from the refrigerant tank 13 to the inner container 12, the mover 3 can be magnetically levitated continuously for a long time.
【００１２】[0012]
【発明の効果】以上のように、この発明によれば、内側
容器に超電導体を取付け、この内側容器を外側容器に収
納し、内側容器の周囲を真空状態にし、内側容器内に冷
媒を供給し続けるようにしたので、内側容器への熱侵入
量を小さくでき、冷媒を供給し続けることにより、長時
間にわたって連続して可動子を磁気浮上させることが可
能となる。As described above, according to the present invention, the superconductor is attached to the inner container, the inner container is housed in the outer container, the circumference of the inner container is made into a vacuum state, and the refrigerant is supplied into the inner container. The amount of heat entering the inner container can be reduced, and by continuing to supply the refrigerant, the mover can be magnetically levitated continuously for a long time.
【図１】この発明の一実施例の断面図である。FIG. 1 is a sectional view of an embodiment of the present invention.
【図２】この発明の他の実施例の断面図である。FIG. 2 is a sectional view of another embodiment of the present invention.
【図３】従来の超電導軸受装置の断面図である。FIG. 3 is a sectional view of a conventional superconducting bearing device.
１ 超電導体 ２ 永久磁石 ３ 可動子 ５ 冷媒注入口 ７ 冷媒排出口 ８ 冷凍機 ９ ポンプ １０ 真空層 １１ 外側容器 １２ 内側容器 １３ 冷媒タンク ４０ 固定子 1 Superconductor 2 Permanent Magnet 3 Movable Element 5 Refrigerant Inlet 7 Refrigerant Outlet 8 Refrigerator 9 Pump 10 Vacuum Layer 11 Outer Container 12 Inner Container 13 Refrigerant Tank 40 Stator
Claims (2)
子として永久磁石が用いられる超電導軸受装置におい
て、 前記固定子が取付けられ、その内部に冷媒が注入される
内側容器と、 前記内側容器を収納しかつ該内側容器の周囲を真空状態
に保つ外側容器と、 前記内側容器内に冷媒を供給するための冷媒供給手段と
を備えた、超電導軸受装置。1. A superconducting bearing device in which a superconductor is used as a stator and a permanent magnet is used as a mover, wherein an inner container to which the stator is attached, and a refrigerant is injected into the inner container, A superconducting bearing device, comprising: an outer container that is housed and keeps the periphery of the inner container in a vacuum state; and a coolant supply means for supplying a coolant into the inner container.
冷凍手段と、 前記冷凍手段によって冷却された冷媒を前記内側容器に
供給するポンプとを含む、請求項１の超電導軸受装置。2. The refrigerant supply unit includes a refrigeration unit that collects and recools the refrigerant injected into the inner container, and a pump that supplies the refrigerant cooled by the refrigeration unit to the inner container. The superconducting bearing device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15190793A JPH0712126A (en) | 1993-06-23 | 1993-06-23 | Superconductive bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15190793A JPH0712126A (en) | 1993-06-23 | 1993-06-23 | Superconductive bearing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0712126A true JPH0712126A (en) | 1995-01-17 |
Family
ID=15528805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15190793A Withdrawn JPH0712126A (en) | 1993-06-23 | 1993-06-23 | Superconductive bearing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712126A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016048169A (en) * | 2014-08-27 | 2016-04-07 | 公益財団法人国際超電導産業技術研究センター | Vibration sensor and vibration sensing system |
| CN108448945A (en) * | 2018-03-26 | 2018-08-24 | 中国石油大学(华东) | A kind of induction type super-conductive magnetic suspension load-shedding equipment for vertical shaft type hydrogenerator |
| CN114392476A (en) * | 2022-01-17 | 2022-04-26 | 上海炫脉医疗科技有限公司 | High-temperature superconducting magnetic suspension axial-flow type blood pump |
-
1993
- 1993-06-23 JP JP15190793A patent/JPH0712126A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016048169A (en) * | 2014-08-27 | 2016-04-07 | 公益財団法人国際超電導産業技術研究センター | Vibration sensor and vibration sensing system |
| CN108448945A (en) * | 2018-03-26 | 2018-08-24 | 中国石油大学(华东) | A kind of induction type super-conductive magnetic suspension load-shedding equipment for vertical shaft type hydrogenerator |
| CN108448945B (en) * | 2018-03-26 | 2019-06-14 | 中国石油大学(华东) | A kind of induction type super-conductive magnetic suspension load-shedding equipment for vertical shaft type hydrogenerator |
| CN114392476A (en) * | 2022-01-17 | 2022-04-26 | 上海炫脉医疗科技有限公司 | High-temperature superconducting magnetic suspension axial-flow type blood pump |
| CN114392476B (en) * | 2022-01-17 | 2024-02-06 | 上海炫脉医疗科技有限公司 | High-temperature superconductive magnetic suspension axial flow type blood pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000905 |