CN105489461B - Many rotatable X-ray bulbs of negative electrode - Google Patents
Many rotatable X-ray bulbs of negative electrode Download PDFInfo
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- CN105489461B CN105489461B CN201510877884.3A CN201510877884A CN105489461B CN 105489461 B CN105489461 B CN 105489461B CN 201510877884 A CN201510877884 A CN 201510877884A CN 105489461 B CN105489461 B CN 105489461B
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- ray
- anode
- anode bodies
- electrode unit
- rotatable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/24—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof
- H01J35/26—Tubes wherein the point of impact of the cathode ray on the anode or anticathode is movable relative to the surface thereof by rotation of the anode or anticathode
Abstract
The present invention relates to many negative electrodes, big anode, rotatable, long-life X-ray bulb, including X-ray emission pipe, the insulating cylinder for being provided with X-ray outlet and lead screen cylinder are arranged outside X-ray emission pipe, X-ray emission pipe can be in insulating cylinder along its own longitudinal axis rotation by rotating mechanism；The negative electrode of X-ray emission pipe includes multigroup independent cathode electrode unit that ring-type is set at equal intervals；Anode includes disk-shaped anode body and anode bodies radiating block, the heat dissipation block externally connected fin of anode bodies.When there is aging in the corresponding anode bombarded point of a cathode electrode unit of the present invention, operating personnel drive overall X-ray emission pipe to rotate by rotating mechanism, the new cathode electrode unit of annular array is allowed to rotate to radiation exit, equivalent to a new ray tube has been changed, ray tube service life was up to 20 30 years.Meanwhile, present invention radiating number, the volume of whole ray tube diminishes, weight saving, it is adaptable to different types of machines.
Description
Technical field
The invention belongs to medical treatment and defect-detecting equipment technical field, and in particular to many negative electrodes, big anode, rotatable, long-life
X-ray bulb.
Background technology
X ray tubes include two electrodes：One is filament for launching electronics, and as negative electrode, another is to use
In the target for receiving electron bombardment, anode is used as.
X-ray tube in the market typically has two kinds of structures, and one kind is fixed anode Formula X ray tube, and another is rotation
Turn anode type X-ray tube.Fixed anode Formula X ray tube small volume, power is in below 5KW, the electron stream of its cathode filament transmitting
All the time a little bombarding to anode target material, after ray tube use time length, the electron stream focus of anode target surface sends out soon
Not only, or there is the phenomenon in the molten hole of anode target material metal in hair, and the efficiency of ray tube is substantially reduced, or even is scrapped；Rotary anode
The power of Formula X ray tube is in 10KW-and between 100KW, the focus that its anode receives the bombardment of electron stream is not a point, but
One circle, the problem of it solves the molten hole of the easy aging of anode target material metal to a certain extent, but its anode target material metal
Heat-transfer path is oversize, and heat is difficult outflow, and thermal capacity is undesirable.
The content of the invention
It is existing to overcome it is an object of the invention to provide a kind of many negative electrodes, big anode, rotatable, long-life X-ray bulb
There is the easy aging of X-ray tube in technology, heat dispersion is poor, the problem of inefficiency.
The technical scheme is that：
Outside many negative electrodes, big anode, rotatable, long-life X-ray bulb, including X-ray emission pipe, X-ray emission pipe
It is arranged outside insulating cylinder, insulating cylinder and is arranged lead screen cylinder, is provided with the insulating cylinder and lead screen cylinder in X-ray outlet, insulating cylinder
Wall epimere and hypomere set flexible fastening block and runing rest respectively, and X-ray emission pipe is longitudinally disposed at flexible fastening block and rotation
Turn between support；The connection of X-ray emission pipe lower end can make the rotating mechanism of X-ray emission pipe rotation along its longitudinal axis；
Described X-ray emission pipe includes vacuum body and anode and negative electrode is set in vacuum body；The negative electrode is arranged at
One end inside vacuum body, including multigroup independent cathode electrode unit that ring-type is set at equal intervals；Set outside multigroup cathode electrode unit poly-
Coke installation；
Described anode is arranged at the other end inside vacuum body, including anode bodies and the sun connected with anode bodies lower surface
Polar body radiating block, anode bodies radiating block is connected by trip bolt with the fin outside vacuum body, described in fin connection
Rotating mechanism.
Cathode electrode unit includes cathode filament and heater lead, and the cathode filament of multigroup cathode electrode unit passes through filament disk annular
Array is separated, the heater lead of multigroup cathode filament draws vacuum body and separates fixation by the external outlet board of vacuum；
Anode bodies are that upper surface has the plate-like metal body of inclination, and anode bodies face of inclining is just right with multigroup cathode electrode unit；The sun
Polar body is embedded in anode bodies radiating block and fixed by trip bolt with anode bodies radiating block.
Described vacuum body includes glass bulb and connection alloy bottom, and connection alloy bottom is arranged at glass bulb lower end, connection alloy bottom
Upper and lower end face is sticked with anode bodies radiating block and fin respectively；Connection alloy bottom, anode bodies radiating block, fin pass through tight
Gu mode connects for screw.
The lower surface of described fin is curved tooth cylindrical gear structure；The rotating mechanism includes swingle, the one of swingle
End is through insulating cylinder and lead screen cylinder and sets knob, and the other end of swingle sets the lower surface curved tooth cylindrical gear knot with fin
The curved tooth cylindrical gear that structure coordinates.
Described flexible fastening block sets 3 pieces, and ring-type is arranged at insulating cylinder epimere inwall to 3 pieces of flexible fastening blocks at equal intervals；
Described runing rest is arranged on insulating cylinder hypomere inwall, and fin is arranged in runing rest, fin and runing rest
It is correspondingly arranged on contact surface in ball grooves, ball grooves and ball is set.
Described anode bodies radiating block is that oxygen-free copper is fast.
The focusing arrangement is single focus, and the number of cathode electrode unit is 8-16.
The focusing arrangement is bifocus, and the number of cathode electrode unit is 4-8.
Described connection alloy bottom is identical with the thermal coefficient of expansion of glass bulb.
Beneficial effects of the present invention：
1. relative to prior art, X-ray emission pipe of the invention can rotate, when the corresponding anode of a cathode electrode unit
When aging occurs in bombarded point, operating personnel drive overall X-ray emission pipe to rotate by rotating mechanism, allow the new of annular array
Cathode electrode unit and anode bodies are rotated to radiation exit, and equivalent to a new ray tube has been changed, ray tube service life can
Up to 20-30；
2. relative to prior art, the setting of anode bodies radiating block and fin of the present invention strengthens thermal convection current, accelerates heat
Exchange, improve the overall radiating rate of ray tube；
3. relative to prior art, the volume of the whole ray tube of the present invention diminishes, and weight saving can be used in C-arm, G
A variety of occasions such as arm, O-arm, bedside machine, stomach and intestine machine, DR machines.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the cathode filament distribution schematic diagram in the embodiment of the present invention 1；
Fig. 3 is the cathode filament distribution schematic diagram in the embodiment of the present invention 2；
In figure, 1- insulating cylinders, 2- lead screens cylinder, 3-X radiation exits, 4- flexible fastening blocks, 5- runing rests, 6- focuses on dress
Put, 7- anode bodies, 8- anode bodies radiating blocks, 9- fin, 10- cathode filaments, 11- heater leads, 12- filament disks, 13- goes out
Line plate, 14- glass bulbs, 15- connection alloys bottom, 16- swingles, 17- balls.
Embodiment
The present invention is further detailed with reference to embodiment and accompanying drawing.
Embodiment 1：
Many negative electrodes, big anode, rotatable, long-life X-ray bulb as depicted in figs. 1 and 2, including X-ray emission
It is arranged outside pipe, X-ray emission pipe outside insulating cylinder 1, insulating cylinder 1 and is arranged lead screen cylinder 2, X is provided with insulating cylinder 1 and lead screen cylinder 2
Radiation exit 3, the inwall epimere of insulating cylinder 1 and hypomere set flexible fastening block 4 and runing rest 5, X-ray emission Guan Zong respectively
To being arranged between flexible fastening block 4 and runing rest 5；The connection of X-ray emission pipe lower end can make X-ray emission pipe along its longitudinal axis
The rotating mechanism of rotation；
X-ray emission pipe includes vacuum body and anode and negative electrode is set in vacuum body；Negative electrode is arranged inside vacuum body
One end, including at equal intervals ring-type set multigroup independent cathode electrode unit；Focusing arrangement 6 is set outside multigroup cathode electrode unit；It is cloudy
Pole unit includes cathode filament 10 and heater lead 11, and the cathode filament logical 10 of multigroup cathode electrode unit crosses the annular point of filament disk 12
From array, the heater lead 11 of multigroup cathode filament 10 draws vacuum body and separates fixation by the external outlet board 13 of vacuum；
Anode is arranged at the other end inside vacuum body, including anode bodies 7 and the anode bodies connected with the lower surface of anode bodies 7
Radiating block 8, anode bodies radiating block 8 is connected by trip bolt with the fin 9 outside vacuum body, and fin 9 connects described
Rotating mechanism.Anode bodies radiating block 8 is that solid oxygen-free copper is fast, and oxygen-free copper has good heat-conductive characteristic soon, and anode bodies 7 are
There is a plate-like metal body of 15 degree of inclinationes upper surface, and the face of inclining of anode bodies 7 is just right with multigroup cathode electrode unit；Anode bodies 7 are embedded in anode
Fixed in body radiating block 8 and by trip bolt with anode bodies radiating block 8.
Vacuum body includes glass bulb 14 and connection alloy bottom 15, and connection alloy bottom 15 is arranged at the lower end of glass bulb 14, connects alloy
Bottom 15 is identical with the thermal coefficient of expansion of glass bulb 14, the upper and lower end face in connection alloy bottom 15 respectively with anode bodies radiating block 8 and fin
9 are sticked；Connection alloy bottom 15, anode bodies radiating block 8, fin 9 are connected by trip bolt.
The lower surface of fin 9 is that curved tooth cylindrical gear structure rotating mechanism includes swingle 16, and one end of swingle 16 is passed through
Insulating cylinder 1 and lead screen cylinder 2 simultaneously set knob, and the other end of swingle 16 sets the lower surface curved tooth cylindrical gear structure with fin
The curved tooth cylindrical gear of cooperation.Flexible fastening block 4 sets 3 pieces, and ring-type is arranged in the epimere of insulating cylinder 13 pieces of flexible fastening blocks 4 at equal intervals
Wall；Described runing rest 5 is arranged on the hypomere inwall of insulating cylinder 1, and fin 9 is arranged in runing rest 5, the He of fin 9
It is correspondingly arranged on the contact surface of runing rest 5 in ball grooves, ball grooves and ball 17 is set.
Focusing arrangement 6 is single focus in the present embodiment, and the number of cathode electrode unit is 8, and its design parameter is as follows：
Maximum voltage：150KV；
Maximum current：200MA；
Power limit：20kW（100KV,200MA,0.1S）；
Focus：φ1.5mm；
Anode thermal capacity：1000W.
When there is aging in a cathode electrode unit corresponding anode bombardment focus, operating personnel by lead screen cylinder 2 outside
Knob drives rotating mechanism, and the curved tooth cylindrical gear of rotating mechanism drives X-ray emission pipe integrally to be rotated along central shaft, during rotation,
3 pieces of flexible fastening blocks 4 of the upper end of insulating cylinder 1 play centering and stabilization, the runing rest 5 and transmitting tube of the lower end of insulating cylinder 1
Fin 9 between the ball that sets make rotation more nimble, when new cathode electrode unit and the undamaged anode body portion of correspondence
When rotation is at radiation exit, equivalent to having changed a new ray tube；
Embodiment 2：
As shown in figure 3, as different from Example 1, the present embodiment focusing arrangement 6 is bifocus, the number of cathode electrode unit
For 8, its design parameter is as follows：
Maximum voltage：130KV；
Maximum current：100MA；
Power limit：10kW（100KV,100MA,0.1S）；
Focus：φ0.3~0.6mm；
Anode thermal capacity：1000W.
The present invention substantially increases the service life of X-ray tube, and its service life can reach 20-30；Meanwhile, the present invention
Radiating is strengthened in anode dimension increase, and the volume of whole ray tube diminishes, and weight saving can be widely applied to various types, such as c-type
Arm, G arm, O-arm, bedside machine, stomach and intestine machine, DR machines etc..
Present disclosure is not limited to cited by embodiment, and those of ordinary skill in the art are by reading description of the invention
And any equivalent conversion taken technical solution of the present invention, it is that claim of the invention is covered.
Claims (9)
1. more than the rotatable X-ray bulb of negative electrode, including X-ray emission pipe is arranged insulating cylinder outside X-ray emission pipe（1）, insulation
Cylinder（1）It is outer to be arranged lead screen cylinder（2）, the insulating cylinder（1）With lead screen cylinder（2）On be provided with X-ray outlet（3）, its feature exists
In：
Insulating cylinder（1）Inwall epimere and hypomere set flexible fastening block respectively（4）And runing rest（5）, X-ray emission pipe longitudinal direction
It is arranged at flexible fastening block（4）And runing rest（5）Between；The connection of X-ray emission pipe lower end can make X-ray emission pipe vertical along it
The rotating mechanism of axle rotation；
Described X-ray emission pipe includes vacuum body and anode and negative electrode is set in vacuum body；The negative electrode is arranged at vacuum
The one end in internal portion, including multigroup independent cathode electrode unit that ring-type is set at equal intervals；Set outside multigroup cathode electrode unit and focus on dress
Put（6）；
Described anode is arranged at the other end inside vacuum body, including anode bodies（7）With with anode bodies（7）What lower surface was connected
Anode bodies radiating block（8）, anode bodies radiating block（8）Pass through the fin outside trip bolt and vacuum body（9）Connection, fin
（9）The described rotating mechanism of connection.
2. the rotatable X-ray bulb of many negative electrodes according to claim 1, it is characterised in that：
Cathode electrode unit includes cathode filament（10）And heater lead（11）, the cathode filament of multigroup cathode electrode unit（10）Pass through filament
Disk（12）Annular release array, multigroup cathode filament（10）Heater lead（11）Draw vacuum body by vacuum going out in vitro
Line plate（13）Separation is fixed；
Anode bodies（7）There are the plate-like metal body of inclination, anode bodies for upper surface（7）Face of inclining is just right with multigroup cathode electrode unit；It is described
Anode bodies（7）It is embedded in anode bodies radiating block（8）In and pass through trip bolt and anode bodies radiating block（8）It is fixed.
3. the rotatable X-ray bulb of many negative electrodes according to claim 1 or 2, it is characterised in that：
Described vacuum body includes glass bulb（14）With connection alloy bottom（15）, connection alloy bottom（15）It is arranged at glass bulb（14）Under
End, connection alloy bottom（15）Upper and lower end face respectively with anode bodies radiating block（8）And fin（9）It is sticked；Connect alloy bottom
（15）, anode bodies radiating block（8）, fin（9）Connected by trip bolt.
4. the rotatable X-ray bulb of many negative electrodes according to claim 3, it is characterised in that：
Described fin（9）Lower surface be curved tooth cylindrical gear structure；The rotating mechanism includes swingle（16）, swingle
（16）One end pass through insulating cylinder（1）With lead screen cylinder（2）And knob, swingle are set（16）The other end set and fin
（9）Lower surface curved tooth cylindrical gear respective outer side edges curved tooth cylindrical gear.
5. the rotatable X-ray bulb of many negative electrodes according to claim 4, it is characterised in that：
Described flexible fastening block（4）3 pieces, 3 pieces of flexible fastening blocks are set（4）Ring-type is arranged at insulating cylinder at equal intervals（1）Epimere
Inwall；Described runing rest（5）It is arranged at insulating cylinder（1）On hypomere inwall, fin（9）It is arranged at runing rest（5）In,
Fin（9）And runing rest（5）It is correspondingly arranged on contact surface in ball grooves, ball grooves and ball is set（17）.
6. the rotatable X-ray bulb of many negative electrodes according to claim 5, it is characterised in that：
The anode bodies radiating block（8）For oxygen-free copper block.
7. the rotatable X-ray bulb of many negative electrodes according to claim 6, it is characterised in that：
The focusing arrangement（6）For single focus, the number of cathode electrode unit is 8-16.
8. the rotatable X-ray bulb of many negative electrodes according to claim 6, it is characterised in that：
The focusing arrangement（6）For bifocus, the number of cathode electrode unit is 4-8.
9. the rotatable X-ray bulb of many negative electrodes according to claim 8, it is characterised in that：Described connection alloy bottom
（15）With glass bulb（14）Thermal coefficient of expansion it is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877884.3A CN105489461B (en) | 2015-12-04 | 2015-12-04 | Many rotatable X-ray bulbs of negative electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877884.3A CN105489461B (en) | 2015-12-04 | 2015-12-04 | Many rotatable X-ray bulbs of negative electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105489461A CN105489461A (en) | 2016-04-13 |
| CN105489461B true CN105489461B (en) | 2017-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510877884.3A Active CN105489461B (en) | 2015-12-04 | 2015-12-04 | Many rotatable X-ray bulbs of negative electrode |
Country Status (1)
| Country | Link |
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| CN (1) | CN105489461B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030759U (en) * | 1988-03-21 | 1989-01-11 | 刘春华 | Rotary anode x-ray tubes with a radiator |
| CN2749049Y (en) * | 2004-10-26 | 2005-12-28 | *** | Strong type rotary anode X-ray tube |
| CN101553896A (en) * | 2006-12-04 | 2009-10-07 | 株式会社东芝 | Rotary anode type x ray tube |
| CN103594308A (en) * | 2013-11-25 | 2014-02-19 | 丹东华日理学电气股份有限公司 | Double-lamp filament X-ray tube |
| US8897420B1 (en) * | 2012-02-07 | 2014-11-25 | General Electric Company | Anti-fretting coating for rotor attachment joint and method of making same |
| CN205194652U (en) * | 2015-12-04 | 2016-04-27 | 魏理贵 | Many negative poles, big positive pole, rotatable, long -life X ray bulb |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE868638C (en) * | 1941-05-29 | 1953-02-26 | Siemens Reiniger Werke Ag | Rotary anode tube for material analysis |
| US4281269A (en) * | 1977-04-27 | 1981-07-28 | Ledley Robert S | Microfocus X-ray tube |
| CN85102523B (en) * | 1985-04-10 | 1988-01-27 | 北京市理化分析测试中心 | X-ray generator |
| CN201666885U (en) * | 2010-01-08 | 2010-12-08 | 纳优科技（北京）有限公司 | Multi-target target disc device for polarized secondary target X-ray fluorescence spectrometer |
| WO2013185826A1 (en) * | 2012-06-14 | 2013-12-19 | Siemens Aktiengesellschaft | X-ray source, use thereof and method for producing x-rays |
-
2015
- 2015-12-04 CN CN201510877884.3A patent/CN105489461B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2030759U (en) * | 1988-03-21 | 1989-01-11 | 刘春华 | Rotary anode x-ray tubes with a radiator |
| CN2749049Y (en) * | 2004-10-26 | 2005-12-28 | *** | Strong type rotary anode X-ray tube |
| CN101553896A (en) * | 2006-12-04 | 2009-10-07 | 株式会社东芝 | Rotary anode type x ray tube |
| US8897420B1 (en) * | 2012-02-07 | 2014-11-25 | General Electric Company | Anti-fretting coating for rotor attachment joint and method of making same |
| CN103594308A (en) * | 2013-11-25 | 2014-02-19 | 丹东华日理学电气股份有限公司 | Double-lamp filament X-ray tube |
| CN205194652U (en) * | 2015-12-04 | 2016-04-27 | 魏理贵 | Many negative poles, big positive pole, rotatable, long -life X ray bulb |
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| Publication number | Publication date |
|---|---|
| CN105489461A (en) | 2016-04-13 |
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