JPS57212753A - Rotary-anode x-ray tube - Google Patents
Rotary-anode x-ray tubeInfo
- Publication number
- JPS57212753A JPS57212753A JP56096486A JP9648681A JPS57212753A JP S57212753 A JPS57212753 A JP S57212753A JP 56096486 A JP56096486 A JP 56096486A JP 9648681 A JP9648681 A JP 9648681A JP S57212753 A JPS57212753 A JP S57212753A
- Authority
- JP
- Japan
- Prior art keywords
- bearings
- rotor
- length
- shaft
- larger
- 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
-
- 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
Abstract
PURPOSE:To increase the rotational life of the rotor, and improve the quality and the reliability of a rotary-anode X-ray tube by providing bearings between the rotor and a supporting shaft, which supports the rotation of the rotor and to which an umbrella-type target plate is connected, and making the length in the axial direction of the inner rings of the bearings connected to the shaft larger than the length in the axial direction of the outer rings of the bearings connected to the rotor. CONSTITUTION:Two bearings 11 and 12 are provided between the ends of a supporting shaft 1 and a cylindrical rotor 3. The length (l1) of inner rings 11a and 12a of the bearings 11 and 12 connected to the supporting shaft 1 is larger than the length (l2) of outer rings 11b and 12b of the bearings 11 and 12 connected to the rotor 3 by above 20%. Owing to the above constitution, when the bearings 11 and 12 provided at both ends of the shaft 1 are pressed by the spring force of a spring 6, the bearings 11 and 12 are hardly slanted since the inner rings 11a and 12a having the length (l1) larger than the length (l2) of the outer rings 11b and 12b are connected to the shaft 1. As a result, the bearings 11 and 12 rotate smoothly, any trouble of the defective rotation of the rotor 3 is prevented, and the rotational life of the rotor 3 is lengthened.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56096486A JPS57212753A (en) | 1981-06-24 | 1981-06-24 | Rotary-anode x-ray tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56096486A JPS57212753A (en) | 1981-06-24 | 1981-06-24 | Rotary-anode x-ray tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57212753A true JPS57212753A (en) | 1982-12-27 |
Family
ID=14166391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56096486A Pending JPS57212753A (en) | 1981-06-24 | 1981-06-24 | Rotary-anode x-ray tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57212753A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017002515A1 (en) * | 2015-06-29 | 2017-01-05 | 株式会社日立製作所 | X-ray tube device and x-ray ct device |
-
1981
- 1981-06-24 JP JP56096486A patent/JPS57212753A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017002515A1 (en) * | 2015-06-29 | 2017-01-05 | 株式会社日立製作所 | X-ray tube device and x-ray ct device |
JPWO2017002515A1 (en) * | 2015-06-29 | 2018-04-12 | 株式会社日立製作所 | X-ray tube apparatus and X-ray CT apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2055432B (en) | Rotary-anode x-ray tube having an axial magnetic bearing and a radial sleeve bearing | |
US4641332A (en) | X-ray tube comprising anode disc rotatably supported by bearing having push-pull bearing on an axial face | |
ES475798A1 (en) | Rotary-anode X-ray tube | |
JPS5562650A (en) | X-ray tube for stereo | |
EP0324617A3 (en) | Propeller blade assembly | |
US5838763A (en) | X-ray tube with a plain bearing | |
CA2052471A1 (en) | Rotary-anode type x-ray tube | |
IT8821339A0 (en) | PROCEDURE FOR THE PRODUCTION OF ROLLER BEARINGS WITH VERY SMALL AXIAL DIMENSIONS AND HIGH LOAD CAPACITY, PARTICULARLY SUITABLE FOR THE ECCENTRIC CONNECTING RODS OF ROTARY DOBBIES OPERATING AT VERY HIGH SPEED, AND BEARINGS OBTAINED SO. | |
US3634870A (en) | Rotating anode for x-ray generator | |
GB2146709A (en) | Bearing cup with external restraining flange | |
JPS5738547A (en) | Rotary anode x-ray tube | |
EP0218434A3 (en) | X-ray tube | |
JPS57212753A (en) | Rotary-anode x-ray tube | |
CA2037840A1 (en) | Sliding contact roller head | |
GB1364175A (en) | X ray tube with electrically conductive bearing bypass | |
US2597498A (en) | X-ray tube | |
US4769831A (en) | Rotating anode x-ray tube | |
US2640168A (en) | Electron tube | |
GB781353A (en) | Improvements in bearing structures particularly for x-ray tubes | |
JPS553181A (en) | Rotary anode structure for x-ray tube | |
JPS5642944A (en) | Rotating anode x-ray tube | |
JPS58142747A (en) | Rotary anode x-ray tube | |
JPS5755041A (en) | Rotary anode of x-ray tube | |
JPS56112057A (en) | Rotary anode supporting structure for x-ray tube | |
EP0821391A3 (en) | X-ray tube and method of generating x-rays |