CN206976281U - Heat shielding under velocity modulation tube electron gun thin-wall circular platform shape - Google Patents
Heat shielding under velocity modulation tube electron gun thin-wall circular platform shape Download PDFInfo
- Publication number
- CN206976281U CN206976281U CN201720684033.1U CN201720684033U CN206976281U CN 206976281 U CN206976281 U CN 206976281U CN 201720684033 U CN201720684033 U CN 201720684033U CN 206976281 U CN206976281 U CN 206976281U
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- China
- Prior art keywords
- cylinder
- transition
- reversely
- tooth
- frustum cone
- 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.)
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- 230000007704 transition Effects 0.000 claims abstract description 109
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229910001257 Nb alloy Inorganic materials 0.000 description 2
- WMTSAHAFZXEJBV-UHFFFAOYSA-N [Ba].[W] Chemical compound [Ba].[W] WMTSAHAFZXEJBV-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- RHDUVDHGVHBHCL-UHFFFAOYSA-N niobium tantalum Chemical compound [Nb].[Ta] RHDUVDHGVHBHCL-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- Welding Or Cutting Using Electron Beams (AREA)
Abstract
The utility model discloses heat shielding under a kind of velocity modulation tube electron gun thin-wall circular platform shape, part and reversely extended part including forward extending, the part of forward extending includes forward hollow circuit cylinder cylinder, be connected to the forward hollow circuit cylinder cylinder end face forward with tooth transition frustum cone cylinder and be connected to the forward top component forward with tooth transition frustum cone cylinder bottom；The part of reversely extending, which includes reverse hollow circuit cylinder cylinder, is connected to reversely the reverse of hollow circuit cylinder cylinder end face with tooth transition frustum cone cylinder and is connected to described reversely with the reverse top component at the top of tooth transition frustum cone cylinder.Heat shielding is the lower heat shielding of sectional forming under velocity modulation tube electron gun thin-wall circular platform shape of the present utility model, repeatedly complicated stamping drawdown method need not be used during processing, save and cover mould of extending more, it is only necessary to simple spot welding mould, scrapping for part will not be caused in process.
Description
Technical field
It the utility model is related to high-power klystron technical field, and in particular to a kind of velocity modulation tube electron gun thin-wall circular platform shape
Lower heat shielding.
Background technology
Electron gun is the key component of klystron, because velocity modulation tube cathode operating temperature is higher, for ordinary oxide
Negative electrode is at 850 DEG C, and barium-tungsten dispense cathode operating temperature is at 1050 DEG C；In addition, cathode activation temperature requirement is higher, oxide-coated cathode is
1050 DEG C, and barium-tungsten dispense cathode is up to 1250 DEG C.The shell of klystron is probably at 100 DEG C or so, and therefore, the insulation of electron gun just shows
Obtain increasingly important.
The insulation of material, material specification and design shape to electron gun used in parts of electronic gun is crucial factor.
Part material used in electron gun, typically requires high temperature resistant, and conventional material is tungsten, molybdenum and its alloy, tantalum, tantalum-niobium alloy,
Stainless steel etc..And molybdenum or molybdenum alloy are typically all used against cathode portion, in order to reduce heat transfer, material requirements is very thin, typically
In 0.05~0.20mm.In the design close to cathode portion, in addition to emission of cathode face, it is required for heating to shield, i.e., along negative electrode
The face of cylinder is equipped with side heat shielding, and lower heat shielding is housed in bottom.
In order to reduce heat radiation and heat transfer, typically there are multilayer side heat shielding and lower heat shielding.Side heat shielding part shape is main
Exactly to be extended part using cylinder-shaped thin wall, lower heat shielding shape mainly uses the hemispherical or planar structure similar to heater bottom surface,
Lower heat shielding typically by heat shielding the belt of spot welding be fixed on lateral support cylinder, and the material of heat shielding is using molybdenum ribbon, no
Become rusty steel band, tantalum-niobium alloy band etc..
Heat shielding part is mainly processed using stamping drawdown method under conventional electron gun.Metal parts is extended, especially
It is the stamping drawdown for Mo, because material ductility itself is poor, material is again thin, is easily broken off damaging during extending
It is bad, cause part yields poor, high processing costs, and also even if manufacturing, the size of part also is difficult to ensure.This main table
Now, part has horn mouth, i.e. concentric reducer；Different-diameter part transition position easily produce fold, part thickness it is inconsistent, zero
Part Local Cracking etc..Even so, generally require to take ancillary method, advance one piece of thin-walled of spot welding such as on material to be processed
Metal, and the time length of mould testing, die trial cost is high, therefore whole part manufacturing cost is high, trial-production cycle length.
The content of the invention
A kind of deficiency of the purpose of this utility model aiming at above-mentioned technology, there is provided the velocity modulation tube electron gun of sectional forming
Heat shielding under thin-walled truncated cone-shaped, the heat shielding effects of heat shielding can also be improved.
To achieve the above object, heat shielding under the velocity modulation tube electron gun thin-wall circular platform shape designed by the utility model, including it is suitable
Part and reversely extended part to extending, the part of forward extending include forward hollow circuit cylinder cylinder, be connected to it is described forward in
Hollow round column cylinder end face forward with tooth transition frustum cone cylinder and is connected to the forward top forward with tooth transition frustum cone cylinder end face
Part, and the external diameter of the forward hollow circuit cylinder cylinder is identical with the internal diameter forward with tooth transition frustum cone cylinder large end face；
The part of reversely extending includes reverse hollow circuit cylinder cylinder, is connected to the reverse of the reversely hollow circuit cylinder cylinder end face
With tooth transition frustum cone cylinder and the reverse top component reversely with tooth transition frustum cone cylinder end face is connected to, and it is described reversely hollow
The external diameter of cylindrical drum is identical with the internal diameter reversely with tooth transition frustum cone cylinder large end face.
Further, the forward band tooth transition frustum cone cylinder include forward transition frustum cone cylinder, several pass through forward transition
Circular arc be distributed uniformly and circumferentially the forward transition frustum cone cylinder large end face upper surface forward on transition tooth and several
It is distributed uniformly and circumferentially and forward descends transition tooth in the forward transition frustum cone cylinder small end face；The forward top component
One circle edge be welded on it is described forward descend transition tooth upper surface, forward upper transition tooth and the forward hollow circuit cylinder described in several
The outer peripheral edge of cylinder fits.
Further, the reversely band tooth transition frustum cone cylinder include reverse transition frustum cone cylinder, several pass through reverse transition
Circular arc be distributed uniformly and circumferentially the reverse transition frustum cone cylinder large end face lower surface it is reverse on transition tooth and several
It is distributed uniformly and circumferentially the reversely lower transition tooth in the reverse transition frustum cone cylinder small end face；The reversely top component
One circle edge is welded on the reversely lower transition tooth upper surface, several described reversely upper transition teeth and the reverse hollow circuit cylinder
The inner edge of cylinder fits.
Further, forward the axisymmetrical of upper transition tooth and the forward hollow circuit cylinder cylinder is distributed described in several.
Further, the axisymmetrical of several reversely upper transition teeth and the reversely hollow circuit cylinder cylinder is distributed.
Further, the thickness of the forward hollow circuit cylinder cylinder, thickness, the forward round platform of the forward upper transition tooth
The thickness of cylinder, the thickness of the forward transition arc and the thickness all same for forward descending transition tooth.
Further, the reversely thickness of hollow circuit cylinder cylinder, thickness, the reverse round platform of the reversely upper transition tooth
The thickness all same of the thickness of cylinder, the thickness of the reverse transition circular arc and the reversely lower transition tooth.
Compared with prior art, the utility model has advantages below：Velocity modulation tube electron gun thin-wall circular of the present utility model
Heat shielding is the lower heat shielding of sectional forming under platform shape, and repeatedly complicated stamping drawdown method need not be used during processing, saves more sets
Extend mould, it is only necessary to simple spot welding mould, scrapping for part will not be caused in process；Thin-walled parts are avoided repeatedly to rush
Pressure is extended, and significantly reduces the difficulty of processing of parts of electronic gun, is shortened the trial-production cycle, is reduced manufacturing cost, and improves
The yield rate of part.
Brief description of the drawings
Fig. 1 is the design of part schematic diagram of forward extending of heat shielding under the utility model velocity modulation tube electron gun thin-wall circular platform shape；
Fig. 2 is the design of part schematic diagram of reversely extending of heat shielding under the utility model velocity modulation tube electron gun thin-wall circular platform shape.
Each part numbers are as follows in figure：
Forward extend part 10, forward hollow circuit cylinder cylinder 11, forward band tooth transition frustum cone cylinder 12, forward upper transition tooth 13,
Forward transition arc 14, forward transition frustum cone cylinder 15, forward descend transition tooth 16, forward top component 17；
Reversely extend part 20, reverse hollow circuit cylinder cylinder 21, reversely band tooth transition frustum cone cylinder 22, reversely upper transition tooth 23,
Reverse transition circular arc 24, reversely reverse transition frustum cone cylinder 25, lower transition tooth 26, reverse top component 27.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
Heat shielding under velocity modulation tube electron gun thin-wall circular platform shape of the present utility model, including forward extend and part and reversely extend zero
Part.As shown in figure 1, part 10 of forward extending include forward hollow circuit cylinder cylinder 11, be connected to the forward end face of hollow circuit cylinder cylinder 11
Forward with tooth transition frustum cone cylinder 12 and be connected to forward top component 17 forward with the bottom of tooth transition frustum cone cylinder 12, and forward in
The external diameter of hollow round column cylinder 11 is identical with the internal diameter forward with the large end face of tooth transition frustum cone cylinder 12；Wherein, forward with tooth transition round platform
Cylinder 12 include forward transition frustum cone cylinder 15, several are distributed uniformly and circumferentially in forward transition by forward transition arc 14
The forward upper transition tooth 13 of the large end face upper surface of frustum cone cylinder 15 and several be distributed uniformly and circumferentially in forward transition round platform
15 small end faces of cylinder forward descend transition tooth 16；Forward a circle edge of top component 17, which is welded on, forward descends the upper table of transition tooth 16
Face, forward upper 13 outer peripheral edge completely with forward hollow circuit cylinder cylinder 11 of transition tooth fits for several, and all forward upper transition
The axisymmetrical of tooth 13 and forward hollow circuit cylinder cylinder 11 is distributed.
As shown in Fig. 2 part 20 of reversely extending includes reverse hollow circuit cylinder cylinder 21, is connected to the reverse end of hollow circuit cylinder cylinder 21
The reverse of face with tooth transition frustum cone cylinder 22 and is connected to reverse top component 27 reversely with the top of tooth transition frustum cone cylinder 22, and instead
It is identical with the internal diameter reversely with the large end face of tooth transition frustum cone cylinder 22 to the external diameter of hollow circuit cylinder cylinder 21；Wherein, reversely band tooth transition
Frustum cone cylinder 22 includes reverse transition frustum cone cylinder 25, several are distributed uniformly and circumferentially reverse by reverse transition circular arc 24
The reversely upper transition tooth 23 of the large end face lower surface of transition frustum cone cylinder 25 and several be distributed uniformly and circumferentially in reverse transition
The reversely lower transition tooth 26 of the small end face of frustum cone cylinder 25；One circle edge of reverse top component 27 is welded on reversely on lower transition tooth 26
Surface, reversely upper 23 inner edge completely with reverse hollow circuit cylinder cylinder 21 of transition tooth fits for several, and all reversely upper transition
The axisymmetrical of tooth 23 and reverse hollow circuit cylinder cylinder 21 is distributed.
Wherein, forward the thickness of hollow circuit cylinder cylinder 11, forward the thickness of upper transition tooth 13, forward the thickness of frustum cone cylinder 15,
Forward the thickness of transition arc 14 and forward descend the thickness all same of transition tooth 16；The thickness of reverse hollow circuit cylinder cylinder 21, reversely
The thickness of upper transition tooth 23, the thickness of reverse frustum cone cylinder 25, the thickness of reverse transition circular arc 24 and the thickness for reversely descending transition tooth 26
Spend all same；Certainly, forward the thickness of the thickness of hollow circuit cylinder cylinder and reverse hollow circuit cylinder cylinder can be the same or different, root
Depending on concrete condition.
In summary, heat shielding is the lower heat shielding of sectional forming under velocity modulation tube electron gun thin-wall circular platform shape of the present utility model,
Repeatedly complicated stamping drawdown method need not be used during processing, saves and covers mould of extending more, it is only necessary to simple spot welding mould, is being added
Scrapping for part will not be caused during work；Avoid thin-walled parts Multi-step forming to extend, significantly reduce parts of electronic gun
Difficulty of processing, shorten the trial-production cycle, reduce manufacturing cost, and improve the yield rate of part.
Claims (7)
1. heat shielding under a kind of velocity modulation tube electron gun thin-wall circular platform shape, including forward extend part and part of reversely extending, its feature
It is：The part of forward extending includes forward hollow circuit cylinder cylinder, is connected to the forward band of the forward hollow circuit cylinder cylinder bottom
Tooth transition frustum cone cylinder and the forward top component forward with tooth transition frustum cone cylinder bottom is connected to, and the forward hollow circle
The external diameter of column casing is identical with the internal diameter forward with tooth transition frustum cone cylinder large end face；
The part of reversely extending includes reverse hollow circuit cylinder cylinder, is connected to the reversely reverse band tooth at the top of hollow circuit cylinder cylinder
Transition frustum cone cylinder and it is connected to described reversely with the reverse top component at the top of tooth transition frustum cone cylinder, and the reverse hollow circuit cylinder
The external diameter of cylinder is identical with the internal diameter reversely with tooth transition frustum cone cylinder large end face.
2. heat shielding under velocity modulation tube electron gun thin-wall circular platform shape according to claim 1, it is characterised in that：The forward band tooth mistake
Cross frustum cone cylinder include forward transition frustum cone cylinder, several by forward transition arc be distributed uniformly and circumferentially it is described forward
The forward upper transition tooth of transition frustum cone cylinder large end face upper surface and several be distributed uniformly and circumferentially in the forward transition
Frustum cone cylinder small end face forward descends transition tooth；One circle edge of the forward top component is welded on described forward descend on transition tooth
Surface, forward the outer peripheral edge of upper transition tooth and the forward hollow circuit cylinder cylinder fits described in several.
3. heat shielding under velocity modulation tube electron gun thin-wall circular platform shape according to claim 1, it is characterised in that：The reversely band tooth mistake
Cross frustum cone cylinder include reverse transition frustum cone cylinder, several by reverse transition circular arc be distributed uniformly and circumferentially it is described reversely
The reversely upper transition tooth of transition frustum cone cylinder large end face lower surface and several be distributed uniformly and circumferentially in the reverse transition
The reversely lower transition tooth of frustum cone cylinder small end face；One circle edge of the reversely top component is welded on the reversely lower transition tooth
Surface, the inner edge of several reversely upper transition teeth and the reversely hollow circuit cylinder cylinder fit.
4. heat shielding under velocity modulation tube electron gun thin-wall circular platform shape according to claim 2, it is characterised in that：Described in several forward
The axisymmetrical of upper transition tooth and the forward hollow circuit cylinder cylinder is distributed.
5. heat shielding under velocity modulation tube electron gun thin-wall circular platform shape according to claim 3, it is characterised in that：Several are described reversely
The axisymmetrical of upper transition tooth and the reversely hollow circuit cylinder cylinder is distributed.
6. heat shielding under velocity modulation tube electron gun thin-wall circular platform shape according to claim 2, it is characterised in that：The forward hollow circle
Thickness, thickness, the thickness of the forward transition arc of the forward frustum cone cylinder of the thickness of column casing, the forward upper transition tooth
With the thickness all same for forward descending transition tooth.
7. heat shielding under velocity modulation tube electron gun thin-wall circular platform shape according to claim 3, it is characterised in that：The reversely hollow circle
The thickness of column casing, the thickness of the reversely upper transition tooth, thickness, the thickness of the reverse transition circular arc of the reversely frustum cone cylinder
With the thickness all same of the reversely lower transition tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720684033.1U CN206976281U (en) | 2017-06-13 | 2017-06-13 | Heat shielding under velocity modulation tube electron gun thin-wall circular platform shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720684033.1U CN206976281U (en) | 2017-06-13 | 2017-06-13 | Heat shielding under velocity modulation tube electron gun thin-wall circular platform shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206976281U true CN206976281U (en) | 2018-02-06 |
Family
ID=61408279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720684033.1U Expired - Fee Related CN206976281U (en) | 2017-06-13 | 2017-06-13 | Heat shielding under velocity modulation tube electron gun thin-wall circular platform shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206976281U (en) |
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2017
- 2017-06-13 CN CN201720684033.1U patent/CN206976281U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180206 |