JP2697381B2 - Rotating anode X-ray tube - Google Patents
Rotating anode X-ray tubeInfo
- Publication number
- JP2697381B2 JP2697381B2 JP3177533A JP17753391A JP2697381B2 JP 2697381 B2 JP2697381 B2 JP 2697381B2 JP 3177533 A JP3177533 A JP 3177533A JP 17753391 A JP17753391 A JP 17753391A JP 2697381 B2 JP2697381 B2 JP 2697381B2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- anode
- brazing
- ray tube
- disk
- 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
Description
【０００１】[0001]
【産業上の利用分野】本発明は回転陽極Ｘ線管に関し、
とくに重量が大きいその陽極部の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating anode X-ray tube,
Particularly, it relates to the improvement of the anode part which is heavy.
【０００２】[0002]
【従来の技術】回転陽極Ｘ線管は近年の需要としてその
出力Ｘ線量の大容量なものが求められており、つまりこ
のような大容量化に伴ない、陽極部の陽極ディスクない
しターゲットディスクの重量は従来では５００ｇ程度で
あったものが数倍の１．５〜２．０Ｋｇにも達してい
る。また、この重量の大きなターゲットディスクを従来
と変わらぬように僅か３〜４秒の間に０〜９０００ｒ．
ｐ．ｍに起動させてやる必要があり、図５に示すよう
に、陽極ディスク１とこれと直結したロータのロータ軸
２との締結部およびロータ軸２のろう付け部には大きな
ねじり力が加わる。このため、両者に対し、ろう付けを
行なっている。2. Description of the Related Art In recent years, a rotating anode X-ray tube has been required to have a large output X-ray dose as its demand. That is, with such a large capacity, an anode disk of an anode section or a target disk has been required. The weight has been about 500 g in the past, but has reached several times 1.5 to 2.0 kg. In addition, the target disk having a large weight is applied to the target disk in an amount of 0 to 9000 r.r.
p. m, and as shown in FIG. 5, a large torsional force is applied to the fastening portion between the anode disk 1 and the rotor shaft 2 of the rotor directly connected to the anode disk 1 and the brazing portion of the rotor shaft 2. Therefore, brazing is performed on both.
【０００３】なお、図５において、他の部材として、３
はロータ金具、２ａと２ｂはロータ軸２が締結用に備え
たフランジ部、４はロータシリンダであり、ロータはロ
ータ軸２、ロータ金具３及びロータシリンダ４とからな
る。In FIG. 5, 3 members are used as other members.
Is a rotor bracket, 2a and 2b are flange portions provided on the rotor shaft 2 for fastening, and 4 is a rotor cylinder. The rotor comprises the rotor shaft 2, the rotor bracket 3, and the rotor cylinder 4.
【０００４】また、この図面に示していないが、陽極デ
ィスク１の左側に陰極部が配置され、陽極部と陰極部と
が図示しない容器により包持されている。[0004] Further, although not shown in the figure, a cathode section is disposed on the left side of the anode disk 1, and the anode section and the cathode section are held by a container (not shown).
【０００５】[0005]
【発明が解決しようとする課題】前記したねじり力に対
してゆるみ止めの効果を示すように、ろう付け面６、
６’は図３及び図４に示すとおり、回転軸２ｘから距離
をとったフランジ部２ａ、２ｂに対しても設けることが
望ましい。なお、図３はロータ軸２と陽極ディスク１と
の締結要部を、また図４はロータ軸２とロータ金具３と
の締結要部をそれぞ示している。In order to show the effect of locking against the torsional force described above, the brazing surfaces 6,
As shown in FIGS. 3 and 4, it is desirable to provide 6 ′ also for the flange portions 2 a, 2 b spaced from the rotation shaft 2 x. FIG. 3 shows a main part of the connection between the rotor shaft 2 and the anode disk 1, and FIG. 4 shows a main part of the connection between the rotor shaft 2 and the rotor fitting 3.
【０００６】ところが、このフランジ部２ａ、２ｂにお
いては、相手との締結接合面は２つの部材の位置出しの
ための当り面を兼ねているため、すき間がほとんどな
い。このため、ろう材５、５’が流れない。または流れ
たとしてもごく僅かになり、ろう接強度が落ちてしま
う。However, in the flange portions 2a and 2b, there is almost no gap since the fastening joint surface with the mating member also serves as a contact surface for positioning the two members. Therefore, the brazing materials 5, 5 'do not flow. Or, even if it flows, it becomes very small, and the brazing strength decreases.
【０００７】本発明の目的は、重量の大きい陽極ディス
クとロータ軸との、またはロータ軸とロータ金具とのろ
う付け強度を高め、同時に両者間の位置合わせの精度も
確保できる、回転陽極Ｘ線管を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to increase the brazing strength between a heavy anode disk and a rotor shaft or between a rotor shaft and a rotor bracket, and at the same time ensure the accuracy of positioning between the two. Is to provide a tube.
【０００８】[0008]
【課題を解決するための手段】前記した目的は、外囲器
内に真空保持された陽極部と陰極部とからなり、陽極部
は陰極部からの加速、集束された電子と衝突させるディ
スクと、これを回転させるロータとを有し、このロータ
は、２つの連結用フランジ部を有しその１つを介して連
結されるロータ軸と、このロータ軸の他の連結フランジ
部を介して連結されるロータ金具と、このロータ金具と
一体のロータシリンダとよりなる、回転陽極Ｘ線管にお
いて、ディスクまたはロータ金具とロータ軸の各連結フ
ランジ部との接合部に、位置出し用のリング状当り面
と、この当り面の内側に位置しかつ当り面に対し段差を
有するろう付け面とを設けることにより、達成される。An object of the present invention is to provide an anode and a cathode which are held in a vacuum in an envelope, and the anode is a disk for accelerating from the cathode and colliding with focused electrons. And a rotor for rotating the rotor shaft. The rotor has two connecting flange portions, and the rotor shaft is connected via one of the connecting flange portions, and is connected via another connecting flange portion of the rotor shaft. In a rotating anode X-ray tube comprising a rotor bracket to be mounted and a rotor cylinder integral with the rotor bracket, a ring-shaped contact for positioning is formed at a joint between a disc or a rotor bracket and each connecting flange of a rotor shaft. This is achieved by providing a surface and a brazing surface located inside the contact surface and having a step relative to the contact surface.
【０００９】ディスクとロータ軸の一方端フランジ部と
の接合部の少なくとも１方に、またロータ軸の他方端フ
ランジ部とロータ金具との接合部の少なくとも１方に、
位置出し用の当り面とろう付け用の面とを設けているの
で、位置出し用の当り面により両者間の位置合わせ精度
を確保でき、ろう付け面により両者間のろう付け強度が
高められる。At least one joint between the disk and one end flange of the rotor shaft, and at least one joint between the other end flange of the rotor shaft and the rotor bracket,
Since the contact surface for positioning and the surface for brazing are provided, positioning accuracy between the two can be ensured by the contact surface for positioning, and the brazing strength between the two can be increased by the brazing surface.
【００１０】[0010]
【実施例】本発明の好適な実施例は、図１及び図２につ
いて説明される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiment of the present invention is described with reference to FIGS.
【００１１】図３では陽極ディスク１とロータ軸２とは
すきまばめであるため、はめ合い部にはすき間がある
が、フランジ部２ａの陽極ディスクとの接合面は位置出
し用の当り面であり、すき間はない。In FIG. 3, since the anode disk 1 and the rotor shaft 2 are clearance fit, there is a gap in the fitting portion, but the joining surface of the flange portion 2a with the anode disk is a contact surface for positioning. There are no gaps.
【００１２】そこで、本発明によれば、図１のようにフ
ランジ２ａには位置出し用の面２ｃとろう付け用の面２
ｄが設けられている。 ろう付け用の面２ｄは位置出し
用の面２ｃに対して好ましくは１０〜３０μｍ程度の段
差があり、これによって組立てられたときに、ろう付け
用の面２ｄにはこの段差に等しいすき間が生じる。Therefore, according to the present invention, as shown in FIG. 1, the flange 2a has a positioning surface 2c and a brazing surface 2c.
d is provided. The brazing surface 2d has a step of preferably about 10 to 30 μm with respect to the positioning surface 2c, so that when assembled, a gap equal to this step is generated in the brazing surface 2d. .
【００１３】ろう付けの際には、すなわち外部からの高
周波加熱など、或いは電子衝撃による熱により、このす
き間にろう材５が流れこみ、高いろう付け強度が得られ
る。At the time of brazing, that is, the brazing material 5 flows into these gaps by high frequency heating from the outside or heat by electron impact, and high brazing strength is obtained.
【００１４】図２は本発明によるロータ軸とロータ金具
との締結要部破断面図であり、位置出し用面２ｅとろう
付け用面２ｆとが配設されており、図１と同様の作用効
果を奏する。FIG. 2 is a fragmentary sectional view of the essential part of the connection between the rotor shaft and the rotor bracket according to the present invention, in which a positioning surface 2e and a brazing surface 2f are provided. It works.
【００１５】なお、ろう付け面と位置出し用との段差、
すなわちろう付けすき間は使用するろう材の特性によっ
て任意に選ぶことができる。ろう材としては、例えば、
Ａｕ−Ｐｄの９２対８の重量％合金、Ｐｄ−Ｎｉの６０
対４０の重量％合金、或いは１００％Ｃｕ、さらにはＮ
ｉ−Ｃｒ−Ｂ−Ｓｉ−Ｆ合金などが挙げられる。In addition, a step between the brazing surface and the positioning position,
That is, the brazing gap can be arbitrarily selected depending on the characteristics of the brazing material to be used. As a brazing material, for example,
Au-Pd 92: 8 wt% alloy, Pd-Ni 60
40% by weight alloy or 100% Cu or even N
i-Cr-B-Si-F alloy and the like.
【００１６】上記の図示例では、いずれもロータ軸側２
に対して２つの面をもつようなフランジ２ａ、２ｂを設
けたが、陽極ディスク側１やロータ金具側３に、位置出
し用面とろう付け用面との２つの面を配設しても同様の
効果が得られることは明白である。In the above illustrated examples, the rotor shaft side 2
Although two flanges 2a and 2b having two surfaces are provided, two surfaces, a positioning surface and a brazing surface, may be provided on the anode disk side 1 and the rotor bracket side 3. Obviously, a similar effect can be obtained.
【００１７】[0017]
【効果】陽極ディスクの重量が大きく、従って大容量の
Ｘ線量が求められるＸ線撮影において、陽極部の破損が
少なく、寿命の長い回転陽極Ｘ線管を提供する。The present invention provides a rotating anode X-ray tube having a long life and little damage to the anode section in X-ray photography in which the weight of the anode disk is large and therefore a large amount of X-ray is required.
【図１】本発明の１実施例を示した要部破断面図。FIG. 1 is a fragmentary cross-sectional view showing one embodiment of the present invention.
【図２】他の実施例を示した要部破断面図。FIG. 2 is a fragmentary cross-sectional view showing another embodiment.
【図３】従来例を示した要部破断面図。FIG. 3 is a fragmentary sectional view showing a conventional example.
【図４】他の従来例を示した要部破断面図。FIG. 4 is a fragmentary cross-sectional view showing another conventional example.
【図５】回転陽極Ｘ線管の陽極部概略図。FIG. 5 is a schematic diagram of an anode part of a rotating anode X-ray tube.
１ 陽極ディスク ２ ロータ軸 ３ ロータ金具 ４ ロータシリンダ ５ ろう材 ６ ろう付け面 ２ａ フランジ部 ２ｂ フランジ部 ２ｃ 位置出し用面 ２ｄ ろう付け用面 ２ｅ 位置出し用面 ２ｆ ろう付け用面 Reference Signs List 1 anode disk 2 rotor shaft 3 rotor bracket 4 rotor cylinder 5 brazing material 6 brazing surface 2a flange portion 2b flange portion 2c positioning surface 2d brazing surface 2e positioning surface 2f brazing surface
Claims (1)
とからなり、陽極部は陰極部からの加速、集束された電
子と衝突させるディスクと、これを回転させるロータと
を有し、このロータは、２つの連結用フランジ部を有し
その１つを介して連結されるロータ軸と、このロータ軸
の他の連結フランジ部を介して連結されるロータ金具
と、このロータ金具と一体のロータシリンダとよりな
る、回転陽極Ｘ線管において、ディスクまたはロータ金
具とロータ軸の各連結フランジ部との接合部に、位置出
し用のリング状当り面と、この当り面の内側に位置しか
つ当り面に対し段差を有するろう付け面とが設けられて
いることを特徴とする、回転陽極Ｘ線管。An anode comprises a cathode and a cathode which are held in a vacuum in an envelope. The anode has a disk which collides with accelerated and focused electrons from the cathode and a rotor which rotates the disk. The rotor has two connecting flange portions and is connected via one of the connecting flange portions, a rotor bracket connected via another connecting flange portion of the rotor shaft, and the rotor bracket. In the rotating anode X-ray tube comprising a rotor cylinder integrated with the rotor cylinder, at the joint between the disc or rotor bracket and each connecting flange portion of the rotor shaft, a ring-shaped contact surface for positioning, and inside the contact surface, A rotating anode X-ray tube characterized by being provided with a brazing surface which is located and has a step with respect to a contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3177533A JP2697381B2 (en) | 1991-06-20 | 1991-06-20 | Rotating anode X-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3177533A JP2697381B2 (en) | 1991-06-20 | 1991-06-20 | Rotating anode X-ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH053008A JPH053008A (en) | 1993-01-08 |
| JP2697381B2 true JP2697381B2 (en) | 1998-01-14 |
Family
ID=16032599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3177533A Expired - Fee Related JP2697381B2 (en) | 1991-06-20 | 1991-06-20 | Rotating anode X-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2697381B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5529152B2 (en) | 2008-11-26 | 2014-06-25 | コーニンクレッカ フィリップス エヌ ヴェ | X-ray tube with rotatable anode and liquid heat sink |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60158537A (en) * | 1984-01-27 | 1985-08-19 | Hitachi Ltd | X-ray tube rotary anode |
| US4736400A (en) * | 1986-01-09 | 1988-04-05 | The Machlett Laboratories, Inc. | Diffusion bonded x-ray target |
| US4866748A (en) * | 1988-08-15 | 1989-09-12 | Varian Associates, Inc. | Rotor structure brazed joint |
| JPH0231053U (en) * | 1988-08-22 | 1990-02-27 |
-
1991
- 1991-06-20 JP JP3177533A patent/JP2697381B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH053008A (en) | 1993-01-08 |
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