JPS5996641A - Rotary anode x-ray tube - Google Patents
Rotary anode x-ray tubeInfo
- Publication number
- JPS5996641A JPS5996641A JP57206119A JP20611982A JPS5996641A JP S5996641 A JPS5996641 A JP S5996641A JP 57206119 A JP57206119 A JP 57206119A JP 20611982 A JP20611982 A JP 20611982A JP S5996641 A JPS5996641 A JP S5996641A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- ring
- magnetic
- drive motor
- permeability material
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/08—Anodes; Anti cathodes
- H01J35/10—Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes
- H01J35/101—Arrangements for rotating anodes, e.g. supporting means, means for greasing, means for sealing the axle or means for shielding or protecting the driving
- H01J35/1017—Bearings for rotating anodes
- H01J35/103—Magnetic bearings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2235/00—X-ray tubes
- H01J2235/10—Drive means for anode (target) substrate
- H01J2235/1026—Means (motors) for driving the target (anode)
Abstract
Description
【発明の詳細な説明】
〔発明の属する技術分野〕
本発明は、回転陽極に固着された回転子を磁気力によっ
て、完全非接触に、支承することが可能な回転陽極X線
管に関するものである。[Detailed Description of the Invention] [Technical field to which the invention pertains] The present invention relates to a rotating anode X-ray tube that can support a rotor fixed to a rotating anode in a completely non-contact manner by magnetic force. be.
高真空中において高速回転?行なう回転陽極全支承する
方法として機械的軸受に代えて磁気力によって回転陽極
に固着された回転子?非接触に支承する方法が升られて
いる。High speed rotation in high vacuum? Is there a rotor that is fixed to the rotating anode by magnetic force instead of a mechanical bearing as a method for fully supporting the rotating anode? There are many ways to provide support without contact.
磁気力VC,よって回転子會支承する公知の回転陽極X
線管においては、この回転子?駆動する方法として、回
転子の外側にモータの固定子盆設置し、その駆動モータ
の位置は、磁気力の供給源と関係のない場所に限られて
いた。これは、上記の駆動用モータが、電磁誘導作用に
よって回転子?駆動するので、回転子?非接触に支承し
ている7磁気ノコに過大な影響ケお工ぼすからである。The known rotating anode X supporting the magnetic force VC and thus the rotor association
This rotor in a wire tube? As a driving method, the stator tray of the motor is installed outside the rotor, and the position of the drive motor is limited to a location unrelated to the source of magnetic force. Does this mean that the drive motor above rotates through electromagnetic induction? Since it is driven, the rotor? This is because it will have an excessive influence on the magnetic saw, which is supported in a non-contact manner.
したがって、駆動用モータの設定位置に回転子の半径方
向もしく(は情方向の磁気力供給源力;存在する場合に
は、駆動用モータの磁束と磁気力供給源からの磁束が交
鎖し、回転子の支承?不安定にする要因となる。Therefore, if there is a magnetic force supply source force in the radial direction or the direction of the rotor at the set position of the drive motor, the magnetic flux of the drive motor and the magnetic flux from the magnetic force supply source intersect. , rotor support?Causes instability.
本発明は、上記の問題点に対してなされたもので、磁気
力供給源の配置に関係なく、駆動用モータの位11′j
k任意に設定できる回転陽極X線管全提供すること?目
的とすゐtのである。The present invention has been made to solve the above problems, and regardless of the arrangement of the magnetic force supply source, the position of the drive motor 11'j
Can we provide a rotating anode X-ray tube that can be set arbitrarily? The purpose is sweet.
本発明は、陰極に対向する回転陽極?有する回転子全非
接触に支承して回転嘔ぜる回転陽極X線管において、円
筒状に形成した回転子の+71壁に高透磁率材料で形成
したリングを少なくとも1つ内股し、このリングの外1
111に前記回転子を兼用することも可能な高透磁率材
料でないIJングと、駆動用モータの磁束1通すリング
と駆動用モータの回転子としてのリング?順に設け、前
記回転子の内部に回転子?非接触に支承するための永久
磁石と電磁石と継鉄エリ構成されろ磁気力供給源?設け
、この磁気力供給源ならびに前記高透磁率材料に走行す
/)磁束と前記回転子の外側に設置されたffi動用モ
ータの磁束が交鎖しないように前l己高透磁率材料でな
いリングと駆動用モータの磁束?3出すIJング?設け
る工うにしたものである。The present invention uses a rotating anode facing a cathode. In a rotary anode X-ray tube that rotates by supporting a rotor in a completely non-contact manner, at least one ring made of a high magnetic permeability material is inserted into the +71 wall of the rotor formed in a cylindrical shape, and the ring is Outside 1
111, an IJ ring that is not made of high magnetic permeability material and can also serve as the rotor, a ring that passes one magnetic flux of the drive motor, and a ring that serves as the drive motor's rotor? A rotor inside the rotor? A magnetic force supply source consisting of a permanent magnet, an electromagnet, and a yoke for non-contact support? A ring which is not made of a high magnetic permeability material is provided so that the magnetic flux running through the magnetic force supply source and the high magnetic permeability material does not intersect with the magnetic flux of the FFI motor installed outside the rotor. Magnetic flux of drive motor? IJ ng to get 3? It was designed to be installed.
以上の工うに、本発明に係る回転陽極X線管?構成する
ことにより、駆動用モータの磁束75;磁気支承のため
の磁束?回避することvr−なるので駆動用モータの位
置ケ任意に設定でき、かつ駆動用モータの磁束が磁気力
供給装置に影響をおよぼさない安定な支承全実現できる
。According to the above process, the rotating anode X-ray tube according to the present invention? By configuring the magnetic flux 75 of the drive motor; the magnetic flux for the magnetic bearing? Since the position of the drive motor can be set arbitrarily, and the magnetic flux of the drive motor does not affect the magnetic force supply device, a stable support can be realized.
以下、本発明の代表的実施例全図面を用いて説明する。 Hereinafter, typical embodiments of the present invention will be described using all the drawings.
第1図は本発明に係る回転陽極X線管の実施例の一つ?
示す。Figure 1 shows one embodiment of the rotating anode X-ray tube according to the present invention.
show.
図に示した回転陽極X線管(1)は、非磁性材料で絶縁
材である例えばガラスで形成きれたケース(2)で槽底
され、このケース(2)内は高真空に保持されている。The rotating anode X-ray tube (1) shown in the figure is housed in a case (2) made of a non-magnetic and insulating material, such as glass, and the inside of this case (2) is maintained at a high vacuum. There is.
回転板(:3 a )とこの回転板(3a)Th支持す
る支持棒(3b)とで′S成された回転陽極(3)は陰
極i4) K対向して設置されている。この支持棒(3
b)は導は体で形成され、先端に陽極電流導入用接点ビ
ン(30)が設けられ、かつ絶縁材で形成さ7″した催
体(5)全弁して円筒状の回転子(6)に固定されてい
る。そしてケース(2)は上述した回転陽極(3)、陰
極(4)、回転子(61を値う工うに形成される。回転
子(6)の内壁には高透磁率材料で形成された2個のリ
ング(8a)、(8b)が離間されて内設されている。A rotating anode (3) formed by a rotating plate (3a) and a support rod (3b) supporting the rotating plate (3a) is placed opposite to the cathode (i4). This support rod (3
In b), the conductor is formed of a body, the tip is provided with a contact bottle (30) for introducing an anode current, and the conductor is made of an insulating material and has a length of 7 inches (5), and a cylindrical rotor (6) with a full valve. ).The case (2) is formed with the above-mentioned rotating anode (3), cathode (4), and rotor (61).The inner wall of the rotor (6) is made of highly transparent material. Two rings (8a) and (8b) made of a magnetic material are installed spaced apart.
さらにこのリング(8a)、(8b)の外側で駆動用モ
ータの固定子(ll19に対応する位置に高透磁率材料
でないリング(15C)と駆動用モータの磁束1通すリ
ング(15b)が設けられている。又、ケース(2)の
回転子(6)の内部に位置する部位VC対応する外壁(
9)の前記高透磁率材料のリング(8a)−(sb)V
Cyxj応じた位置に回転子(6)の半径方向に着磁し
たす・′グ状の永久磁石(10a)+(IQb)g配設
し、これらの永久磁石(I Ua)、(10b)の磁路
が形成できる工うに継鉄ul)が設けられている。そし
てこの円筒状の継鉄(IIIKは第1図のA −A’断
面?示す第2図の工うに永久磁石(10a)に対して4
つの磁極(Ila)、永久磁石(101) )に対して
4つの磁極(I i C)がそれぞれ同心円上に設けら
れ、又、前記2個のリング(8a)、(8b)の端部に
位置する継鉄Uυの部位にリング状の磁極(11b)が
設けられている。IJK永久磁石(joa)。Further, outside of these rings (8a) and (8b), a ring (15C) which is not made of a high magnetic permeability material and a ring (15b) through which one magnetic flux of the drive motor passes are provided at positions corresponding to the stator (ll19) of the drive motor. In addition, the outer wall (corresponding to the part VC located inside the rotor (6) of the case (2)
9) Rings (8a)-(sb)V of the high magnetic permeability material
A square permanent magnet (10a) + (IQb)g magnetized in the radial direction of the rotor (6) is arranged at a position corresponding to Cy A yoke (ul) is provided to form a magnetic path. This cylindrical yoke (IIIK is the section A-A' in Fig. 1).
Four magnetic poles (I i C) are provided on concentric circles for each of the two magnetic poles (Ila) and the permanent magnet (101), and are located at the ends of the two rings (8a) and (8b). A ring-shaped magnetic pole (11b) is provided at a portion of the yoke Uυ. IJK permanent magnet (joa).
(101))の前記高透磁率材料のリング(8a)。(101)) The ring (8a) made of the high magnetic permeability material.
(81) )及び継鉄ケ1)全走行する磁束のうち回転
子(6)の半径方向に作用する磁束の制御全行う第1の
電磁石(12a ) 、 (12b )’!i=ツレツ
レ磁極(11aj、(llc)VC設ける。又、回転子
(6)の回転軸方向に作用する磁束の制御7行う第2の
電磁石(13a)、(13b)’r前記継鉄Uυのリン
グ状の磁極(llb)に設ける。ケース(2)の表面に
は回転子(6)とケース(2)との間隔の変位又は速度
?検知する非接触の第1の検知器(14a)及び回転軸
方向の変位又は速度ケ検知する非接触の第2の検知5(
14b)が設けられ、第1.第2の電磁石(12a)、
(12b)、(13a)l(13b)の制御7行うのに
使用される。回転子(6)?回転させるための駆動装置
としてはブラシレスモータが使用され、この回転子(6
)上に設けた銅リング(15a)はケース(2)の外側
に配置された固定子(iによって駆動される。尚、陽極
1!流導入用接点ビン(3C)はケース(2)内に設け
たバネ(17a ) ff1liする板Uηケ介して導
電線(17a)に工って外部から陽極電流全回転陽極(
a) VC導入するようにi成されている。又、ケース
(2)の支持棒(3b)VC対応する箇所の内壁に機械
@受(18a)、(18b)が設けられている。これら
の機械軸受(18a )、(18b)は回転子(6)が
完全非接触状態が保持式れている間は使用されないが、
非使用時及び非常時に回転子(6)ヲ非破壊の11保持
するのに使用される。(81)) and the yoke 1) The first electromagnet (12a), (12b)' which completely controls the magnetic flux acting in the radial direction of the rotor (6) out of all the traveling magnetic flux! i = curved magnetic poles (11aj, (llc) VC are provided. Also, second electromagnets (13a), (13b)'r of the yoke Uυ control 7 the magnetic flux acting in the direction of the rotational axis of the rotor (6). A non-contact first detector (14a) is provided on the ring-shaped magnetic pole (llb) to detect the displacement or speed of the distance between the rotor (6) and the case (2) on the surface of the case (2). Non-contact second detection 5 (
14b) is provided, and the first. a second electromagnet (12a),
(12b), (13a) and (13b) are used to perform the control 7. Rotor (6)? A brushless motor is used as the drive device for rotation, and this rotor (6
) is driven by a stator (i) placed outside the case (2).The anode 1! flow introduction contact bottle (3C) is located inside the case (2). A conductive wire (17a) is connected to the conductive wire (17a) through the provided spring (17a) to connect the anode current to the anode (full rotation) from the outside through the plate Uη.
a) It is configured to introduce VC. Furthermore, mechanical supports (18a) and (18b) are provided on the inner wall of the case (2) at a location corresponding to the support rod (3b) VC. These mechanical bearings (18a) and (18b) are not used while the rotor (6) is maintained in a completely non-contact state, but
It is used to hold the rotor (6) in a non-destructive manner when not in use or in an emergency.
第1図のA −A=断面、H−B°断IIIJ?それぞ
れ第2図、第3図VC示す。A-A=section in Figure 1, H-B° section IIIJ? VC are shown in FIGS. 2 and 3, respectively.
次に動作について説明する。第4図は、動作方法ならび
VC駆動装置の詳細図である。図に示すように、永久磁
石(IQa)VCLる磁束の一部は、リング部材(8a
)を通り、磁極(I la)、継鉄(11)ケ介して永
久磁石(10a ) VC戻る磁路(19a)’2形成
する。また、永久磁石(10a)による磁束の他の一部
eよ、リングski材(8a)’ffi通り、磁極(i
lb)、継鉄(11)を介して永久磁石(。Next, the operation will be explained. FIG. 4 is a detailed diagram of the operating method and VC drive device. As shown in the figure, a part of the magnetic flux of the permanent magnet (IQa) VCL is transferred to the ring member (8a
), a magnetic path (19a)'2 is formed which returns to the permanent magnet (10a) via the magnetic pole (Ila) and the yoke (11). In addition, another part e of the magnetic flux caused by the permanent magnet (10a), the ring ski material (8a)'ffi, the magnetic pole (i
lb), a permanent magnet (.
10a )K戻る磁路(I9b)紮形成する。永久磁石
(10b)vc工ゐ磁束も同様に磁路(19c)、・(
’19d)ffi形成する。磁極(11a ) 、 (
llc)およびリング状の磁極(llb)にはそれぞれ
に通る磁束?増減する工つな方向VC第1の電磁石(1
2a)、(12b)おLび第2の電磁石(13a)、(
13b)が設置されており、その各々の磁束?第1の検
クロ器(14a)お工び第2の検知器(14b)からの
ih号によって図示しない制御装置間?介して増減する
ことにより、回転子(6)の半径方向お工び軸方向の磁
気力?調節し、回転子(6)の安定比全図っている。10a) K return magnetic path (I9b) is formed. Similarly, the magnetic flux of the permanent magnet (10b) and the magnetic path (19c), (
'19d) Form ffi. Magnetic pole (11a), (
llc) and the ring-shaped magnetic pole (llb) respectively? VC first electromagnet (1
2a), (12b) and the second electromagnet (13a), (
13b) are installed, and the magnetic flux of each of them? Is there a connection between the control device (not shown) by the ih signal from the first detector (14a) and the second detector (14b)? By increasing or decreasing the radial and axial magnetic force of the rotor (6)? Adjust the stability ratio of the rotor (6).
この工うVC81!NIk形成して回転子(6)全非接
触に゛支承する回:緊陽極X線管において、駆動用モー
タの固定子t16) I/j工Jb磁束は、駆動用モー
タの回転子(15a)iよぎり、第5図のように高透磁
率材料のリング(15b)の内部で円周に沿う磁路(イ
)?形成し、j枢動用モータの反対[1111の固定子
回に至る。なお、高透磁率材料でないリング(15C)
は、駆動用モータの磁束全内部に通さない工うに形成さ
れている。また、このリング(15c)は回転子(6)
?兼用することも可能である。This is the VC81! NIk is formed and the rotor (6) is supported completely in a non-contact manner: In the closed anode X-ray tube, the stator of the drive motor is t16). As shown in Figure 5, there is a magnetic path (a) along the circumference inside the ring (15b) made of high magnetic permeability material. form, and reach the opposite [1111 stator rotation of the j pivoting motor]. In addition, the ring (15C) is not made of high magnetic permeability material.
is formed in such a way that the magnetic flux of the drive motor does not pass through the entire interior. Also, this ring (15c) is attached to the rotor (6).
? It is also possible to use both.
以」二の説明で明らかなように駆動用モータの磁束は、
回転子(6)2非接触に支承さぜるための磁気力供給源
からの磁束と何ら関係ないので、駆動用モータの固定子
(IL駆動用モータの回転子(15a)、+777状部
材(15b)、(15c)で構成される駆動装置は、回
転子(6)の軸方向に任意の場所に設定できる。したが
って、回転子(6)に駆動力?与えるのに最適な位置に
駆動用モータ?設置でき、かつ従来の工うな継鉄αυを
駆動用モータの磁束?通す部材に代用する方法より、安
定に浮上、回転させることができる。第6図に本発明の
他の実施例金示す。本図においては、第4図と同様に礎
気力?供給する永久磁石お工び電磁石からの磁束と駆動
用モータに関連した部材のみ奮示踵他 □の部材は省
略しである。なお、第1図と同一のものは、同一符号?
付して詳細な説明は省略する。As is clear from the explanation below, the magnetic flux of the drive motor is
The stator of the drive motor (rotor (15a) of the IL drive motor, +777-shaped member ( The drive device composed of 15b) and (15c) can be set at any location in the axial direction of the rotor (6).Therefore, the drive device consisting of 15b) and (15c) can be set at any location in the axial direction of the rotor (6). It is possible to install a motor, and it is possible to levitate and rotate more stably than by replacing the conventional mechanical yoke αυ with a member that passes the magnetic flux of the drive motor. Fig. 6 shows another embodiment of the present invention. In this figure, as in Fig. 4, only the magnetic flux from the permanent magnet-made electromagnet that supplies basic energy and the members related to the drive motor are shown, and the heel and other members marked □ are omitted. , Are the same parts as in Figure 1 the same symbols?
A detailed explanation will be omitted.
本実施例においては、駆動用のモータの固定子q6)?
回転子(6)の内部に駆動用モータの回転子(15a)
’2回転子(6)の内壁に設置し、駆動用モータの磁束
を通す部材として磁気カ供給源からの磁束全通す高透磁
率材料のリング(8)?兼用している。In this embodiment, the stator of the drive motor q6)?
The drive motor rotor (15a) is inside the rotor (6).
'A ring (8) made of a high magnetic permeability material that is installed on the inner wall of the second rotor (6) and serves as a member to pass the magnetic flux of the drive motor through all of the magnetic flux from the magnetic power supply source? It is used for both purposes.
磁気力供給源からの磁束の磁路は第4図と異なっている
が、動作原理は同様である。Although the magnetic path of the magnetic flux from the magnetic force source is different from that in FIG. 4, the operating principle is the same.
第6図および第6図のD −Doの断面を示す第7図?
見るとわか6Lうに駆動用モータの磁束は、駆動用モー
タの固定子u13)から高透磁率材料のリング(8)の
内周に沿って走行し、固冗子(I6)の反対Ill K
戻る磁路り0?形成する・
一万、磁気力供給源の磁束のうち、回転子(6)の軸方
向の制御に関係する磁束は、高透磁率材料のリング(8
)を磁路(19b)の工うに走行しており、この磁路(
19b)は円周に一様に存在する。FIG. 6 and FIG. 7 showing a cross section of D-Do in FIG. 6?
As you can see, the magnetic flux of the 6L drive motor runs from the drive motor's stator u13) along the inner circumference of the ring (8) made of high magnetic permeability material, and the magnetic flux of the drive motor runs from the stator u13) of the drive motor along the inner circumference of the ring (8) made of high magnetic permeability material, and the magnetic flux of the drive motor runs from the stator u13) of the drive motor along the inner periphery of the ring (8) made of high magnetic permeability material.
Return magnetic path 0? Out of the magnetic flux of the magnetic force supply source, the magnetic flux related to the axial control of the rotor (6) is transferred to the ring (8) made of high magnetic permeability material.
) is running along the magnetic path (19b), and this magnetic path (
19b) exists uniformly around the circumference.
以上の説明で明らかなように、高透磁率材料のリング(
8)の断面M2大きくとれば、駆動用モータの磁束と磁
気力供給源の磁束が交鎖することなく、回転子(6)
IfC5,動力を安定に与えられ、同時に回転子(6)
の安定化ならびに外形寸法の小型化が可能となる。As is clear from the above explanation, a ring made of high magnetic permeability material (
If the cross section M2 of 8) is made large, the magnetic flux of the drive motor and the magnetic flux of the magnetic force supply source will not intertwine, and the rotor (6)
IfC5, power is stably provided and at the same time rotor (6)
It is possible to stabilize the structure and reduce the external dimensions.
第1図は、本発明に係る回転陽極X線管の断面図、
第2図歩第3図は、第1図におけるA −A′断面、B
−B°断面金示す断面図、第4図は第1図に示す回転
陽極X線管の動作ならびに駆動用モータを示す部分拡大
図、第5図は、第4図におけるC −C=断面?示す断
面図、第6図は本発明に係る回転陽極X線管の変形例を
示す断面図、第7図は、第6図のD−J)断面を示す断
面図である。
(1)・・・回転陽極X線管、(2)・・・アース、(
3j・・・回転陽極、(3a)・・・回転板、(3b)
・・・支持棒、(3C)・・・陽極電流導入用接点ビン
、(4)・・・陰極、(6) = (6a ) 、 (
6b )−・・円筒状の回転子、(8) 、(8a )
、 (8b )・・・高透磁率材料のリング、COt
、(10a)、(10b)−・・永久磁石、■、(ll
a)、(llb)、(llc)、(11d)・・・継鉄
、(12a)、(12b)・・・第1の電磁石、(13
a)。
(13b)・・・第2の電磁石、(14a)・・・第1
の検知器、(14b)・・・第2の検知器、(15a)
・・・銅リング(駆動装[)、(15b)・・・高透磁
率材料のリング、(15c)・・・高透磁率材料でない
リング、ae・・・固定子(駆動装置t)、tlη・・
・接触板。
第1図
第2図
第 3 図
、3b
第 5 図
?−tt toa z to。
第6図FIG. 1 is a cross-sectional view of a rotating anode X-ray tube according to the present invention.
4 is a partially enlarged view showing the operation of the rotating anode X-ray tube and the drive motor shown in FIG. 1, and FIG. 6 is a sectional view showing a modified example of the rotating anode X-ray tube according to the present invention, and FIG. 7 is a sectional view taken along line D-J in FIG. 6. (1)... Rotating anode X-ray tube, (2)... Earth, (
3j... Rotating anode, (3a)... Rotating plate, (3b)
... Support rod, (3C) ... Contact bottle for anode current introduction, (4) ... Cathode, (6) = (6a), (
6b)--Cylindrical rotor, (8), (8a)
, (8b)...Ring of high magnetic permeability material, COt
, (10a), (10b) --- Permanent magnet, ■, (ll
a), (llb), (llc), (11d)...Yoke, (12a), (12b)...First electromagnet, (13
a). (13b)...second electromagnet, (14a)...first
Detector, (14b)...Second detector, (15a)
...Copper ring (drive device [), (15b)...Ring made of high magnetic permeability material, (15c)...Ring not made of high magnetic permeability material, ae...Stator (drive device t), tlη・・・
・Contact plate. Figure 1 Figure 2 Figure 3, 3b Figure 5? -tt toa z to. Figure 6
Claims (1)
[、Cって非接触に支承して回転させる回転陽極X線管
において、前記回転子を円筒状に形成し、この回転子の
内壁に高透磁率材料で形成したリングを少くとも1つ内
設し、このリングの外側に回転子を兼用することも可能
な高透磁率材料以外の材料で構成されたリングと、駆動
用モータの磁束taすリングと駆動用モータの回転子と
なるリング?設け、前記陰極、前記回転陽極、前記回転
子?覆いかつ真空?保持する非磁性材料で形成したケー
ス?設け、前記回転子の内部に位置する前記ケースの外
壁に前記回転子の半径方向に着磁した永久磁石會前記高
透磁率材料で形成したリングに対応して設け、この永久
磁石の磁路會形成し、複数個の磁極を有する継鉄?前記
永久磁石に設け、前記継鉄の磁極VC第iの電磁石を設
けて前記回転子の軸方向の磁気力の制御?行い前記リン
グの端部の位置に対応する前記継鉄の磁極の位置に第2
の電磁石?設けて前記回転子の半径方向の磁気力の制御
?行い、前記永久磁石の磁束が前記継鉄内で前記回転子
の軸方向に走行し、かつ前記高透磁率材料で形成したリ
ング?走行することにエフ前記回転子の軸方向及び半径
方向に前記永久磁石の磁気力が作用して前記回転子?非
接触支承するとと<’PI成し、前記回転子を駆動する
モータlの位置として、前記回転子の外側もしくは内器
の軸方向に任意の位置に設置ばてきること?特徴とする
回転陽極X線管。(1) Rotating anode facing the cathode? In a rotating anode X-ray tube in which a rotor is rotated by being supported by a magnetic force [, C] in a non-contact manner, the rotor is formed into a cylindrical shape, and a ring formed on the inner wall of the rotor is made of a high magnetic permeability material. A ring made of a material other than a high magnetic permeability material that can also be used as a rotor is installed on the outside of this ring, and a ring that contains at least one magnetic flux of the drive motor and a ring of the drive motor. A ring that acts as a rotor? provided, the cathode, the rotating anode, the rotor? Cover and vacuum? A case made of non-magnetic material that holds? and a permanent magnet group magnetized in the radial direction of the rotor is provided on the outer wall of the case located inside the rotor, and a magnetic path group of the permanent magnet is provided corresponding to the ring formed of the high magnetic permeability material. A yoke formed with multiple magnetic poles? Control of the magnetic force in the axial direction of the rotor by providing an electromagnet on the permanent magnet and the i-th magnetic pole VC of the yoke? and place a second magnetic pole on the yoke corresponding to the position of the end of the ring.
electromagnet? Provide control of the radial magnetic force of the rotor? a ring formed of the high magnetic permeability material, in which the magnetic flux of the permanent magnet runs in the axial direction of the rotor within the yoke; When traveling, the magnetic force of the permanent magnet acts in the axial and radial directions of the rotor, causing the rotor to move. With non-contact support, <'PI is formed, and the motor driving the rotor can be installed at any position outside the rotor or in the axial direction of the inner device. Features a rotating anode X-ray tube.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57206119A JPS5996641A (en) | 1982-11-26 | 1982-11-26 | Rotary anode x-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP57206119A JPS5996641A (en) | 1982-11-26 | 1982-11-26 | Rotary anode x-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5996641A true JPS5996641A (en) | 1984-06-04 |
Family
ID=16518106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP57206119A Pending JPS5996641A (en) | 1982-11-26 | 1982-11-26 | Rotary anode x-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5996641A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0714521U (en) * | 1993-03-17 | 1995-03-10 | 中部電力株式会社 | Jumper sleeve cover for indirect live wire method |
EP1081740A1 (en) * | 1999-07-07 | 2001-03-07 | Philips Corporate Intellectual Property GmbH | Rotary anode X-ray tube with axial bearing |
-
1982
- 1982-11-26 JP JP57206119A patent/JPS5996641A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0714521U (en) * | 1993-03-17 | 1995-03-10 | 中部電力株式会社 | Jumper sleeve cover for indirect live wire method |
EP1081740A1 (en) * | 1999-07-07 | 2001-03-07 | Philips Corporate Intellectual Property GmbH | Rotary anode X-ray tube with axial bearing |
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