CN220526859U - Cathode assembly of X-ray tube - Google Patents
Cathode assembly of X-ray tube Download PDFInfo
- Publication number
- CN220526859U CN220526859U CN202321580172.1U CN202321580172U CN220526859U CN 220526859 U CN220526859 U CN 220526859U CN 202321580172 U CN202321580172 U CN 202321580172U CN 220526859 U CN220526859 U CN 220526859U
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- wall
- ray tube
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- ring
- cathode
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- 238000009434 installation Methods 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 20
- 229910000833 kovar Inorganic materials 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- X-Ray Techniques (AREA)
Abstract
The utility model relates to an X-ray tube cathode assembly, which comprises a cathode lamp cap, a flat core ring, kovar wires and a cathode lamp post, wherein the outer wall of the cathode lamp cap is provided with a mounting mechanism, the mounting mechanism comprises a connecting seat fixedly mounted on the outer wall of the right side of the cathode lamp post, the outer peripheral wall of the connecting seat is in threaded connection with a mounting seat, and the outer peripheral wall of the flat core ring is movably provided with two limiting semi-rings. This X-ray tube cathode assembly carries out the joint spacing with the panel core ring through spacing semi-ring, fixes the equipment through set screw and installation piece with two spacing semi-rings, makes the firm joint of panel core ring in the inside of two spacing semi-rings unable removal, through the effect of bracing piece and limiting plate, protects the cathode lamp holder, prevents that the cathode lamp holder from colliding the damage, accomodates kovar silk through the lamp silk pipe, prevents kovar silk damage, still is convenient for X-ray tube cathode equipment when having improved the security performance to the cathode tube.
Description
Technical Field
The utility model relates to the technical field of X-ray tube cathode assemblies, in particular to an X-ray tube cathode assembly.
Background
The X-ray tube is a vacuum diode that operates at high voltages. Comprising two electrodes: one is a filament for emitting electrons as a cathode and the other is a target for receiving electron bombardment as an anode, both of which are sealed in a high vacuum glass or ceramic envelope.
The cathode lamp cap, the flat core ring, the kovar wire and the cathode lamp post are in spot welding connection, and the precision spot welding technology is required, so that the efficiency of assembling the cathode assembly is low, and the cathode assembly of the X-ray tube is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides an X-ray tube cathode assembly, which has the advantages of improving the assembly efficiency and the like, and solves the problem of lower assembly efficiency of the tube cathode assembly due to the need of a precise spot welding technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the cathode component of the X-ray tube comprises a cathode lamp cap, a flat core ring, kovar wires and a cathode lamp post, wherein an installation mechanism is arranged on the outer wall of the cathode lamp cap;
the installation mechanism comprises a connecting seat fixedly installed on the outer wall of the right side of the cathode lamp post, the outer peripheral wall of the connecting seat is in threaded connection with an installation seat, two limiting semi-rings are movably installed on the outer peripheral wall of the flat plate core ring, two installation blocks are installed on the outer peripheral wall of each limiting semi-ring, fixing screws are connected with the inner wall of each installation block in a threaded manner, a supporting rod is fixedly installed on the outer wall of the left side of each limiting semi-ring, a limiting plate is fixedly installed on the outer wall of the left side of each supporting rod, and two lamp filament tubes are fixedly installed on the outer wall of the right side of the cathode lamp cap.
Further, the screw thread groove has all been seted up to the outer peripheral wall of connecting seat and the left side outer wall of mount pad, the shape of connecting seat is circular, inside and the size looks adaptation of screw thread groove that the connecting seat threaded connection was seted up at the mount pad.
Further, the limiting groove is formed in the inner peripheral wall of the limiting semi-ring, the flat core ring is clamped in the limiting groove and is adaptive to the limiting groove in size, and the limiting groove is semi-annular in shape.
Further, the inside of installation piece is offered threaded hole, set screw threaded connection is in the inside and the size looks adaptation of two adjacent threaded holes.
Further, the inside of dull and stereotyped core ring has seted up the perforation, filament pipe runs through the perforation and extends to the right side outer wall of spacing semi-ring.
Further, the left and right side outer walls of the cathode lamp cap are respectively attached to the right side outer wall of the limiting plate and the left side outer wall of the limiting semi-ring.
Further, the shape of the mounting seat is circular, and the shape of the limiting plate is semicircular.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
this X-ray tube cathode assembly carries out the joint spacing with the panel core ring through spacing semi-ring, fixes the equipment through set screw and installation piece with two spacing semi-rings, makes the firm joint of panel core ring in the inside of two spacing semi-rings unable removal, through the effect of bracing piece and limiting plate, protects the cathode lamp holder, prevents that the cathode lamp holder from colliding the damage, accomodates kovar silk through the lamp silk pipe, prevents kovar silk damage, still is convenient for X-ray tube cathode equipment when having improved the security performance to the cathode tube.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the front view of the present utility model;
FIG. 3 is a schematic cross-sectional view of a filament tube of the present utility model;
fig. 4 is a right side structure schematic view of the limiting semi-ring of the present utility model.
In the figure: 1. a cathode lamp cap; 2. a flat core ring; 3. kovar silk; 4. a cathode lamppost; 5. a connecting seat; 6. a mounting base; 7. a limiting semi-ring; 8. a mounting block; 9. a fixing screw; 11. a support rod; 12. a limiting plate; 13. a lamp wire tube.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, an X-ray tube cathode assembly in this embodiment includes a cathode lamp cap 1, a flat core ring 2, kovar wires 3 and a cathode lamp post 4, wherein an installation mechanism is disposed on an outer wall of the cathode lamp cap 1.
The installation mechanism comprises a connecting seat 5 fixedly installed on the outer wall of the right side of the cathode lamp post 4, an installation seat 6 is connected with the outer peripheral wall of the connecting seat 5 in a threaded manner, threaded grooves are formed in the outer peripheral wall of the connecting seat 5 and the outer wall of the left side of the installation seat 6, the shape of the connecting seat 5 is circular, the connecting seat 5 is in threaded manner, the threaded grooves formed in the installation seat 6 are internally matched with the connecting seat in size, limit semi-rings 7 with two numbers are movably installed on the outer peripheral wall of the flat core ring 2, limit grooves are formed in the inner peripheral wall of the limit semi-rings 7, the flat core ring 2 is clamped in the limit grooves and matched with the limit grooves in size, and the limit grooves are semi-annular.
The outer peripheral wall of spacing semi-ring 7 installs the installation piece 8 that is two in quantity, the inner wall threaded connection of two adjacent installation pieces 8 has set screw 9, threaded hole has been seted up to the inside of installation piece 8, set screw 9 threaded connection is in the inside and the size looks adaptation of two adjacent threaded holes, the left side outer wall fixed mounting of spacing semi-ring 7 has bracing piece 11, the left side outer wall fixed mounting of bracing piece 11 has limiting plate 12, the left and right sides outer wall laminating respectively in the right side outer wall of limiting plate 12 and the left side outer wall of spacing semi-ring 7 of cathode holder 1, the shape of mount pad 6 is circular, the shape of limiting plate 12 is semi-circular, the right side outer wall fixed mounting of cathode holder 1 has filament pipe 13 that is two in quantity, the perforation has been seted up to the inside of dull and stereotyped core ring 2, filament pipe 13 runs through the perforation and extends to the right side outer wall of spacing semi-ring 7.
In this embodiment, the cathode lamp post 4 is fixedly mounted on the right outer wall of the cathode lamp cap 1, the two kovar wires 3 are fixedly mounted on the right outer wall of the cathode lamp cap 1, and the flat core ring 2 is fixedly mounted on the outer peripheral wall of the cathode lamp post 4.
In this embodiment, the connecting seat 5 is connected with the mounting seat 6 by a threaded manner, so that the connecting seat 5 and the mounting seat 6 are convenient to detach.
In this embodiment, the limiting semi-ring 7 limits and fixes the flat core ring 2, so that the flat core ring 2 cannot move to protect the flat core ring.
In this embodiment, a fixture block is fixedly mounted on the peripheral wall of the flat core ring 2, and the fixture block is clamped into the limiting semi-ring 7.
The working principle of the embodiment is as follows:
firstly, the connecting seat 5 is in threaded connection with the mounting seat 6, then the two limiting semi-rings 7 are clamped on the outer peripheral wall of the flat core ring 2, at the moment, the outer walls of the left side and the right side of the cathode lamp cap 1 are positioned between the limiting semi-rings 7 and the limiting plates 12, meanwhile, the inside of the limiting semi-rings 7 is clamped in, the flat core ring 2 is limited by the action of the clamping blocks so that the flat core ring 2 cannot rotate, then the fixing screws 9 are in threaded connection with the two adjacent mounting blocks 8, at the moment, the cathode lamp cap 1 cannot move, and at the moment, the cathode assembly work of the X-ray tube is completed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An X-ray tube cathode assembly comprising a cathode lamp cap (1), a flat core ring (2), kovar filaments (3) and a cathode lamp post (4), characterized in that: the outer wall of the cathode lamp cap (1) is provided with a mounting mechanism;
the installation mechanism comprises a connecting seat (5) fixedly installed on the right outer wall of a cathode lamp post (4), an installation seat (6) is connected with the outer peripheral wall of the connecting seat (5) through threads, two limiting semi-rings (7) are movably installed on the outer peripheral wall of a flat core ring (2), two installation blocks (8) are installed on the outer peripheral wall of each limiting semi-ring (7), fixing screws (9) are connected with the inner walls of the two adjacent installation blocks (8) through threads, a supporting rod (11) is fixedly installed on the left outer wall of each limiting semi-ring (7), a limiting plate (12) is fixedly installed on the left outer wall of each supporting rod (11), and two filament tubes (13) are fixedly installed on the right outer wall of each cathode lamp cap (1).
2. An X-ray tube cathode assembly according to claim 1, wherein: the screw thread groove has all been seted up to the outer peripheral wall of connecting seat (5) and the left side outer wall of mount pad (6), the shape of connecting seat (5) is circular, inside and the size looks adaptation of screw thread groove that connecting seat (5) threaded connection was seted up at mount pad (6).
3. An X-ray tube cathode assembly according to claim 1, wherein: the inner peripheral wall of the limiting semi-ring (7) is provided with a limiting groove, the flat core ring (2) is clamped in the limiting groove and is matched with the limiting groove in size, and the limit groove is semi-annular in shape.
4. An X-ray tube cathode assembly according to claim 1, wherein: threaded holes are formed in the mounting blocks (8), and the fixing screws (9) are in threaded connection with the inner parts of two adjacent threaded holes and are adaptive in size.
5. An X-ray tube cathode assembly according to claim 1, wherein: the inside of dull and stereotyped core ring (2) has seted up the perforation, filament pipe (13) run through the perforation and extend to the right side outer wall of spacing semi-ring (7).
6. An X-ray tube cathode assembly according to claim 1, wherein: the left and right side outer walls of the cathode lamp cap (1) are respectively attached to the right side outer wall of the limiting plate (12) and the left side outer wall of the limiting semi-ring (7).
7. An X-ray tube cathode assembly according to claim 1, wherein: the mounting seat (6) is circular in shape, and the limiting plate (12) is semicircular in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321580172.1U CN220526859U (en) | 2023-06-20 | 2023-06-20 | Cathode assembly of X-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321580172.1U CN220526859U (en) | 2023-06-20 | 2023-06-20 | Cathode assembly of X-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220526859U true CN220526859U (en) | 2024-02-23 |
Family
ID=89931356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321580172.1U Active CN220526859U (en) | 2023-06-20 | 2023-06-20 | Cathode assembly of X-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220526859U (en) |
-
2023
- 2023-06-20 CN CN202321580172.1U patent/CN220526859U/en active Active
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