WO2014075664A1 - Lagereinheit für drehanoden von röntgenröhren - Google Patents
Lagereinheit für drehanoden von röntgenröhren Download PDFInfo
- Publication number
- WO2014075664A1 WO2014075664A1 PCT/DE2013/100390 DE2013100390W WO2014075664A1 WO 2014075664 A1 WO2014075664 A1 WO 2014075664A1 DE 2013100390 W DE2013100390 W DE 2013100390W WO 2014075664 A1 WO2014075664 A1 WO 2014075664A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing
- shaft
- unit according
- angular contact
- contact ball
- Prior art date
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
-
- 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
- H01J2235/1006—Supports or shafts for target or substrate
- H01J2235/102—Materials for the shaft
-
- 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
- H01J2235/1046—Bearings and bearing contact surfaces
-
- 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
- H01J2235/1046—Bearings and bearing contact surfaces
- H01J2235/1053—Retainers or races
Definitions
- the invention relates to a bearing unit for rotary anodes of x-ray tubes.
- the invention has for its object to produce a storage unit for such rotary anodes of X-ray tubes, which is particularly easy to install.
- the storage unit according to the invention with the features of claim 1 is compact and consists of a small number of parts which can be pre-assembled in order to install the thus preassembled storage unit easy to install in the corresponding recess in the X-ray tube.
- the bearing unit can absorb axial forces to some extent.
- the use of two angular contact ball bearings eliminates the need for elaborate shaft production.
- a relatively ponderegünster material eg, unhardened steel
- the spacer elements ensure a positionally secure positioning of the bearing elements on the shaft, wherein the inner spacer element is in contact with the inner rings of the angular contact ball bearings and the outer spacer element is in contact with the outer rings of the angular contact ball bearings.
- an angular contact ball bearing or both angular contact ball bearings with the inner ring on a shoulder of the shaft are thus fixed easy to install in the axial direction.
- the angular contact ball bearings are oriented opposite to each other, ie, the respective open side of the angular contact ball bearings are either facing each other or facing away from each other.
- the open shoulder of the angular contact ball bearing of the first bearing element is arranged in the direction of the flange end of the shaft and the open shoulder of the angular contact ball bearing of the further bearing element in the direction of the flange distal end of the shaft.
- the spacer element arranged between the outer rings and / or the inner rings of the bearing elements may be formed as a divided spacer elements.
- a divided spacer element is understood to mean that the spacer element consists of several separate parts (for example a plurality of ring segments).
- a first (e.g., larger) standard sized ring segment may be used, and further one or more precision made spacers to fill the desired distance between the outer rings and / or inner rings of the bearing elements.
- FIG. 1 is a schematic partial sectional view of a storage unit; and FIG. 2 shows an enlarged detail with a storage unit whose
- Stemming element is locked by plastic deformation of the shaft.
- the bearing unit 1 shown in Fig. 1 has a shaft 2 with a flange element 3 to which a rotary anode (for example according to DE 30 41 558 A1) can be attached.
- a rotary anode for example according to DE 30 41 558 A1
- the entire storage unit 1 can be inserted into a designated and not shown recess of the x-ray tube and locked there in the usual way (eg by screwing).
- the bearing unit 1 has to receive the shaft 2, a first bearing element 4 and a further bearing element 5.
- the first bearing element 4 is formed by an attached to the shaft 2 angular contact ball bearing 6, which has an inner ring 7 and an outer ring 8.
- the second bearing element 5 is formed by a mounted on the shaft 2 angular contact ball bearing 9, which has an inner ring 10 and an outer ring 1 1.
- the open side of the angular contact ball bearing 6 is formed on the outer ring 8 and is arranged in the direction of the flange-side end of the shaft 2.
- the open side of the angular contact ball bearing 9 is formed on the outer ring 1 1 and is arranged in the direction of the flange 3 opposite end of the shaft 2.
- the inner rings 7 and 10 are dimensionally exactly spaced by a spacer element 12.
- a further spacer element 13 is arranged between the outer rings 8 and 1 1, a further spacer element 13 is arranged.
- the angular contact ball bearing 6 is applied with its inner ring 7 at a shoulder of the shaft 2.
- the Verstemmelement 14 is sleeve-shaped. More specifically, the caulking 14 has the shape of a ring or a hollow cylinder. 2 shows an enlarged detail of a storage unit 201.
- the bearing unit 201 differs from the bearing unit 1 only by a differently shaped shaft 202. The other components remain unchanged, so that reference can be made in this regard to the comments on Fig. 1.
- the caulking 14 is locked in the embodiment of FIG. 2 by a plastically deformed end portion 16 of the shaft 202 on the shaft 202.
- An axial displacement of the Verstemmelements 14 is no longer possible.
- the components of the bearing unit 201 are thus securely clamped together.
- the plastic deformation of the end region 16 of the shaft 202 can be carried out, for example, by applying a force directed in the axial direction of the shaft.
- the shaft 202 is identical to the shaft 2 of FIG. 1.
Landscapes
- Rolling Contact Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
- Support Of The Bearing (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13823927.2A EP2920806B1 (de) | 2012-11-19 | 2013-11-19 | Lagereinheit für drehanoden von röntgenröhren |
US14/442,444 US9520261B2 (en) | 2012-11-19 | 2013-11-19 | Bearing unit for rotary anodes of X-ray tubes |
CN201380059832.4A CN104781904A (zh) | 2012-11-19 | 2013-11-19 | 用于x射线管的旋转阳极的支承单元 |
ES13823927T ES2703544T3 (es) | 2012-11-19 | 2013-11-19 | Unidad de cojinete para ánodos giratorios de tubos de rayos-X |
JP2015542163A JP2016504537A (ja) | 2012-11-19 | 2013-11-19 | X線管の回転陽極用軸受ユニット |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202012104447.1 | 2012-11-19 | ||
DE202012104447 | 2012-11-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014075664A1 true WO2014075664A1 (de) | 2014-05-22 |
Family
ID=49999652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2013/100390 WO2014075664A1 (de) | 2012-11-19 | 2013-11-19 | Lagereinheit für drehanoden von röntgenröhren |
Country Status (7)
Country | Link |
---|---|
US (1) | US9520261B2 (de) |
EP (1) | EP2920806B1 (de) |
JP (1) | JP2016504537A (de) |
CN (1) | CN104781904A (de) |
DE (1) | DE202013105226U1 (de) |
ES (1) | ES2703544T3 (de) |
WO (1) | WO2014075664A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105508442A (zh) * | 2016-01-29 | 2016-04-20 | 西门子爱克斯射线真空技术(无锡)有限公司 | X射线管的轴承组件及其x射线管 |
DE102021204081A1 (de) | 2021-04-23 | 2022-10-27 | Minebea Mitsumi Inc. | Drehanodenlageranordnung und Drehanode für eine Röntgenröhre sowie Verfahren zur Montage einer Drehanodenlageranordnung |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3694685A (en) * | 1971-06-28 | 1972-09-26 | Gen Electric | System for conducting heat from an electrode rotating in a vacuum |
DE3041558A1 (de) | 1980-11-04 | 1982-06-09 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur herstellung von lagern fuer drehanoden von roentgenroehren und damit hergestellten roentgenroehren |
EP0351225A2 (de) * | 1988-07-15 | 1990-01-17 | Kabushiki Kaisha Toshiba | Lageranordnung für eine Drehanoden-Röntgenröhre |
EP1843381A1 (de) * | 2006-04-04 | 2007-10-10 | Paul Müller GmbH & Co. KG Unternehmensbeteiligungen | Lagereinheit für Drehanoden von Röntgenröhren |
EP1975428A1 (de) * | 2007-03-28 | 2008-10-01 | JTEKT Corporation | Kugellager für Röntgenstrahlleitung und Röntgenstrahlgerät |
US20120144939A1 (en) * | 2010-12-13 | 2012-06-14 | Arne Lars Jonas Kullin | Double Bearing Assembly for Rotating Shaft |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7920150U1 (de) * | 1979-07-13 | 1981-01-08 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Roentgenroehrendrehanode |
KR0157252B1 (ko) * | 1993-06-30 | 1998-11-16 | 김무 | 고인성 고강도 비조질강 봉재의 제조방법 |
JP3735926B2 (ja) * | 1995-12-15 | 2006-01-18 | 日本精工株式会社 | 車輪支持用ハブユニット |
DE19914826A1 (de) * | 1999-03-31 | 2000-09-14 | Siemens Ag | Verfahren zum Herstellen von Bauteilen für Röntgenröhren |
US6693990B1 (en) * | 2001-05-14 | 2004-02-17 | Varian Medical Systems Technologies, Inc. | Low thermal resistance bearing assembly for x-ray device |
FR2846784B1 (fr) * | 2002-10-30 | 2005-02-11 | Ge Med Sys Global Tech Co Llc | Ensemble de palier pour le montage a rotation d'une anode rotative d'un dispositif d'emission de rayons x et dispositif d'emission de rayon x equipe d'un tel ensemble. |
US7343002B1 (en) * | 2003-02-05 | 2008-03-11 | Varian Medical Systems Technologies, Inc. | Bearing assembly |
JP2006242257A (ja) * | 2005-03-02 | 2006-09-14 | Ntn Corp | 車輪用軸受装置 |
US20080056450A1 (en) * | 2006-09-01 | 2008-03-06 | General Electric Company | X-ray tubes and methods of making the same |
US20100128848A1 (en) * | 2008-11-21 | 2010-05-27 | General Electric Company | X-ray tube having liquid lubricated bearings and liquid cooled target |
US8363787B2 (en) * | 2009-03-25 | 2013-01-29 | General Electric Company | Interface for liquid metal bearing and method of making same |
-
2013
- 2013-11-19 EP EP13823927.2A patent/EP2920806B1/de active Active
- 2013-11-19 US US14/442,444 patent/US9520261B2/en active Active
- 2013-11-19 WO PCT/DE2013/100390 patent/WO2014075664A1/de active Application Filing
- 2013-11-19 ES ES13823927T patent/ES2703544T3/es active Active
- 2013-11-19 JP JP2015542163A patent/JP2016504537A/ja active Pending
- 2013-11-19 DE DE202013105226.4U patent/DE202013105226U1/de not_active Expired - Lifetime
- 2013-11-19 CN CN201380059832.4A patent/CN104781904A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3694685A (en) * | 1971-06-28 | 1972-09-26 | Gen Electric | System for conducting heat from an electrode rotating in a vacuum |
DE3041558A1 (de) | 1980-11-04 | 1982-06-09 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur herstellung von lagern fuer drehanoden von roentgenroehren und damit hergestellten roentgenroehren |
EP0351225A2 (de) * | 1988-07-15 | 1990-01-17 | Kabushiki Kaisha Toshiba | Lageranordnung für eine Drehanoden-Röntgenröhre |
EP1843381A1 (de) * | 2006-04-04 | 2007-10-10 | Paul Müller GmbH & Co. KG Unternehmensbeteiligungen | Lagereinheit für Drehanoden von Röntgenröhren |
EP1975428A1 (de) * | 2007-03-28 | 2008-10-01 | JTEKT Corporation | Kugellager für Röntgenstrahlleitung und Röntgenstrahlgerät |
US20120144939A1 (en) * | 2010-12-13 | 2012-06-14 | Arne Lars Jonas Kullin | Double Bearing Assembly for Rotating Shaft |
Also Published As
Publication number | Publication date |
---|---|
DE202013105226U1 (de) | 2014-02-21 |
CN104781904A (zh) | 2015-07-15 |
US20160155599A1 (en) | 2016-06-02 |
EP2920806A1 (de) | 2015-09-23 |
US9520261B2 (en) | 2016-12-13 |
EP2920806B1 (de) | 2018-10-10 |
ES2703544T3 (es) | 2019-03-11 |
JP2016504537A (ja) | 2016-02-12 |
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