CN204045538U - Coupling cavity part - Google Patents
Coupling cavity part Download PDFInfo
- Publication number
- CN204045538U CN204045538U CN201420503677.2U CN201420503677U CN204045538U CN 204045538 U CN204045538 U CN 204045538U CN 201420503677 U CN201420503677 U CN 201420503677U CN 204045538 U CN204045538 U CN 204045538U
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- pole shoe
- coupling loop
- iron pole
- copper
- copper coupling
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Abstract
The utility model discloses a kind of coupling cavity part, this coupling cavity part comprises coaxially and spaced iron pole shoe (3) and copper coupling loop (2) successively in the axial direction, two end faces of iron pole shoe and copper coupling loop are formed coaxial and the iron pole shoe ring connected in star (4) of symmetry and copper coupling loop annular groove (5) respectively, outward flange copper coupling loop along copper coupling loop annular groove is formed with the annular protrusion corresponding with the medial surface of iron pole shoe ring connected in star, and outward flange annularly protruding on copper coupling loop is provided with solder bath (1).The gap that this coupling cavity part prevents iron pole shoe to exist in the process of welding with copper coupling loop, avoids the high-frequency parameter destroying coupling cavity part.
Description
Technical field
The utility model relates to slow wave system, particularly, relates to a kind of coupling cavity part.
Background technology
In coupled-cavity TWT, use a series of resonant cavity as slow wave structure.Select different cavity sizes and cavity coupling technique, different operating frequencies and power output can be realized.Determine that the size of resonant cavity frequency characteristic mainly contains coupled chamber height, coupling gap and cavity diameter.Along with the raising of operating frequency, higher to the dimension precision requirement of resonant cavity, the tolerance designing these sizes in application is no more than ± 0.01mm.
In actual travelling wave tube makes, coupling cavity is welded to form by iron pole shoe part and copper coupling loop Assembly of the parts substantially, and therefore coupled chamber size is determined by the size of iron pole shoe part and copper coupling loop part.Usually, iron pole shoe and copper coupling loop are assembled together by diametric fit, place solder soldering composition coupling cavity assembly in solder bath position.In cavity on iron pole shoe and on copper coupling loop between there is gap, the high-frequency parameter of coupling cavity may be destroyed in this gap, makes the travelling wave tube produced depart from initial design parameter.Frequency is higher, and this possibility is larger.Actual coupled-cavity TWT comprises dozens of coupling cavity, and part is when assembling, and two kinds of above-mentioned dimensional fits situations all can occur, thus make the dozens of coupling cavity size be assembled into occur discreteness, finally affects the performance parameter of travelling wave tube.
Utility model content
The purpose of this utility model is to provide a kind of coupling cavity part, the gap that this coupling cavity part prevents iron pole shoe to exist in the process of welding with copper coupling loop, avoids the high-frequency parameter destroying coupling cavity part.
To achieve these goals, the utility model provides a kind of coupling cavity part, this coupling cavity part comprises coaxially and spaced iron pole shoe and copper coupling loop successively in the axial direction, two end faces of described iron pole shoe and described copper coupling loop are formed coaxial and the iron pole shoe ring connected in star of symmetry and copper coupling loop annular groove respectively, along described copper coupling loop annular groove outward flange described in copper coupling loop be formed with the annular protrusion corresponding with the medial surface of described iron pole shoe ring connected in star, outward flange along described annular protrusion on described copper coupling loop is provided with solder bath.
Preferably, the spacing between adjacent iron pole shoe and copper coupling loop end face is 0.03-0.06mm.
Further preferably, the spacing between adjacent iron pole shoe and copper coupling loop end face is 0.05mm.
Preferably, affixed by soldering between described iron pole shoe ring connected in star and described annular protrusion.
Preferably, solder ring is provided with in described solder bath.
By above-mentioned execution mode, annular protrusion of the present utility model equals coupled chamber height to the distance of copper coupling loop annular groove bottom, described copper coupling loop withstands described iron pole shoe ring connected in star by annular protrusion and meets the requirement of design size completely with the coupling cavity size realizing assembling parts and formed, copper coupling loop is provided with solder bath along the outward flange of described annular protrusion, this gap can be filled up by capillarity after solder thawing by this solder bath, thus completes soldering processes.
Other feature and advantage of the present utility model are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the cutaway view of the process structure of the coupling cavity part of a kind of execution mode of the utility model.
Description of reference numerals
1 solder bath 2 bronze medal coupling loop
3 iron pole shoe 4 iron pole shoe ring connected in stars
5 bronze medal coupling loop annular grooves.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
Fig. 1 is the cutaway view of the coupling cavity part of a kind of execution mode of the utility model.The utility model provides a kind of coupling cavity part, this coupling cavity part can comprise coaxially and spaced iron pole shoe 3 and copper coupling loop 2 successively in the axial direction, this iron pole shoe 3 and copper coupling loop 2 are for arranging common composition coupling cavity assembly separately, two end faces of described iron pole shoe 3 and described copper coupling loop 2 are formed coaxial and the iron pole shoe ring connected in star 4 of symmetry and copper coupling loop annular groove 5 respectively, along described copper coupling loop annular groove 5 outward flange described in copper coupling loop 2 be formed with the annular protrusion corresponding with the medial surface of described iron pole shoe ring connected in star 4, outward flange along described annular protrusion on described copper coupling loop 2 is provided with solder bath 1.
By above-mentioned execution mode, annular protrusion of the present utility model equals coupled chamber height to the distance of copper coupling loop annular groove 5 bottom, described copper coupling loop 2 withstands described iron pole shoe ring connected in star 4 by annular protrusion and meets the requirement of design size completely with the coupling cavity size realizing assembling parts and formed, copper coupling loop 2 is provided with solder bath 1 along the outward flange of described annular protrusion, this gap is filled up by capillarity by this solder bath 1 after solder melts, thus completes soldering processes.
In this kind of execution mode, the spacing between adjacent iron pole shoe 3 and copper coupling loop 2 end face is 0.03-0.06mm, can be filled up in this gap after solder melts at this interval solder bath 1 by capillarity.
In this kind of preferred implementation, spacing between adjacent iron pole shoe 3 and copper coupling loop 2 end face is 0.05mm, just this gap can be filled up by capillarity after solder melts at this interval solder bath 1, make to there will not be gap between adjacent iron pole shoe 3 and copper coupling loop 2.
In this kind of execution mode, affixed by soldering between described iron pole shoe ring connected in star 4 and described annular protrusion, this welding method makes the connected mode of iron pole shoe ring connected in star 4 and described annular protrusion more firm, and skew or fracture can not occur easily.
In this kind of execution mode, in described solder bath 1, be provided with solder ring, the welding that described solder ring will contribute between iron pole shoe ring connected in star 4 and described annular protrusion, make the more firm of welding.
In another embodiment, the annular protrusion that is designed and sized to of copper coupling loop 2 is D1 to the distance of copper coupling loop annular groove 5 bottom surface, coupled chamber height is D, wherein, annular protrusion is d2 to the distance of the end face of copper coupling loop 2, and the degree of depth of iron pole shoe ring connected in star 4 is d1, wherein, D1=D, d2=d1+0.05mm, that matches with iron pole shoe 3 at the end face of copper coupling loop 2 diametrically snaps hopper 1.There is discreteness in order to avoid the coupling cavity size be assembled in the utility model, make the travelling wave tube object performance parameter drift-out design load made, the coupling cavity size that assembling parts must be made to be formed meets the requirement of design size completely.Utilize the process structure after above-mentioned improvement, when assembling parts forms coupling cavity, iron pole shoe ring connected in star 4 on iron pole shoe 3 contacts with annular protrusion, annular protrusion is coupled chamber height dimension to the distance of copper coupling loop annular groove 5 bottom surface, solder ring is put in the solder bath 1 of copper coupling loop 2, when assembly is carried out high temperature brazing, the gap of 0.05mm is there is between end face on end face on iron pole shoe 3 and copper coupling loop 2, this gap is filled up by capillarity after melting by solder, completes soldering processes.By such device, actual coupled-cavity TWT comprises dozens of coupling cavity, part is when assembling, all may there is above-mentioned problem, such structure just can solve such a problem, thus make the dozens of coupling cavity size be assembled into there will not be discreteness, avoid the performance parameter affecting coupling cavity part.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned execution mode; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection range of the present utility model.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different execution mode of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (5)
1. a coupling cavity part, it is characterized in that, this coupling cavity part comprises coaxially and spaced iron pole shoe (3) and copper coupling loop (2) successively in the axial direction, two end faces of described iron pole shoe (3) and described copper coupling loop (2) are formed coaxial and the iron pole shoe ring connected in star (4) of symmetry and copper coupling loop annular groove (5) respectively, along described copper coupling loop annular groove (5) outward flange described in copper coupling loop (2) be formed with the annular protrusion corresponding with the medial surface of described iron pole shoe ring connected in star (4), outward flange along described annular protrusion on described copper coupling loop (2) is provided with solder bath (1).
2. coupling cavity part according to claim 1, is characterized in that, the spacing between adjacent iron pole shoe (3) and copper coupling loop (2) end face is 0.03-0.06mm.
3. process structure according to claim 2, is characterized in that, the spacing between adjacent iron pole shoe (3) and copper coupling loop (2) end face is 0.05mm.
4. process structure according to claim 1, is characterized in that, affixed by soldering between described iron pole shoe ring connected in star (4) and described annular protrusion.
5. process structure according to claim 1, is characterized in that, described solder bath is provided with solder ring in (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503677.2U CN204045538U (en) | 2014-09-02 | 2014-09-02 | Coupling cavity part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503677.2U CN204045538U (en) | 2014-09-02 | 2014-09-02 | Coupling cavity part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204045538U true CN204045538U (en) | 2014-12-24 |
Family
ID=52246176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420503677.2U Active CN204045538U (en) | 2014-09-02 | 2014-09-02 | Coupling cavity part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204045538U (en) |
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2014
- 2014-09-02 CN CN201420503677.2U patent/CN204045538U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |