CN202888118U - Rod control electronic gun structure used for dual mode travelling wave tube - Google Patents
Rod control electronic gun structure used for dual mode travelling wave tube Download PDFInfo
- Publication number
- CN202888118U CN202888118U CN 201220458864 CN201220458864U CN202888118U CN 202888118 U CN202888118 U CN 202888118U CN 201220458864 CN201220458864 CN 201220458864 CN 201220458864 U CN201220458864 U CN 201220458864U CN 202888118 U CN202888118 U CN 202888118U
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- Prior art keywords
- electron gun
- wave tube
- dual mode
- end cap
- traveling wave
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Abstract
The utility model discloses a rod control electronic gun structure used for a dual mode travelling wave tube, comprising the components as following: an electronic gun end cap; a gun casing assembly, wherein one end of the gun casing assembly is accommodated in the electronic gun end cap and is fixedly connected with the electronic gun end cap; a cathode assembly, which is accommodated in the electronic gun end cap and is fixedly connected with the end of the gun casing assembly accommodated in the electronic gun end cap; and a control grid, wherein one end of the control grid is exposed out of a cathode assembly, and the other end of the control grid runs out of the center of the cathode assembly to be fixed in the gun casing assembly. The utility model provides the advantages as following, the manufacture requirement of a dual mode transmitter control power supply and the electrical parameters of the travelling wave tube are satisfied.
Description
Technical field
The utility model belongs to the vacuum electron device field, specially refers to a kind of pole controlled electron gun structure for dual mode traveling wave tube.
Background technology
Travelling wave tube has the advantages such as bandwidth, gain is large, efficient is high, power output is large as the vacuum microwave power amplifying device, has a wide range of applications in all kinds of military microwave transmitters, is described as " heart " of weaponry.
Dual mode traveling wave tube has two kinds of mode of operations, can save a power supply for transmitter, has alleviated to a great extent the weight of generator.Dual mode traveling wave tube is operated in height mode lower time, has large pulse output power, can improve the detection range of aircraft under adverse circumstances, effectively improves the combat radius of aircraft; Under the low mode, can realize the guidance function of guided missile, realize the precision strike of air weapon.
Because dual mode traveling wave tube has two kinds of mode of operations, therefore harsh requirement is proposed the structure of electron gun, traditional gathering utmost point, anodic control are because voltage is excessive, cause the control power source loads of transmitter excessive, be difficult to make, and gate modulation structure is difficult to guarantee the good percent of pass of electron beam under two kinds of mode of operations of travelling wave tube.Therefore, design a kind of development difficulty that can drop to transmitter control power supply, can make again travelling wave tube all have good percent of pass under two kinds of mode of operations, satisfy the electron gun that the travelling wave tube electrical quantity requires is highly significant.
The utility model content
The purpose of this utility model provides a kind of pole controlled electron gun structure for dual mode traveling wave tube, controls the making needs of power supply and the requirement of each electrical quantity of travelling wave tube to satisfy dual-mode transmitter.
The utility model is achieved in that a kind of pole controlled electron gun structure for dual mode traveling wave tube, and it comprises: the electron gun end cap; Rifle shell component, one end are housed in this electron gun end cap and with this electron gun end cap and fix; Cathode assembly, it is housed in this electron gun end cap, and is fixed in this rifle shell component and is housed on the end in this electron gun end cap; Control utmost point grid, an end of this control utmost point grid is revealed in outside this cathode assembly, and the other end of this control utmost point grid spreads out of from the center of this cathode assembly and is fixed in this rifle shell component.
As the further improvement of such scheme, being shaped as of this control utmost point grid is shaft-like.
As the further improvement of such scheme, this cathode assembly also comprises negative electrode, and the middle part of this negative electrode offers the through hole that passes for this control utmost point grid.
As the further improvement of such scheme, this negative electrode adopts the barium-tungsten dispense cathode of hollow annular.
As the further improvement of such scheme, this cathode assembly also comprises inward flange and the inner shield cylinder on the outward flange and the external shield cylinder that is arranged on this negative electrode, and this inner shield cylinder is housed in this external shield cylinder, and this inner shield jacket casing is located on this control utmost point grid.
Further improvement as such scheme, this electron gun end cap comprises electron gun switching cylinder, electron gun adapter ring, anode strip and anode head, one end of this electron gun switching cylinder is by this anode strip fixed closed, this electron gun adapter ring is housed in this electron gun switching cylinder, and this anode head is fixed on the center of this anode strip and is positioned at this anode strip dorsad on the side of this cathode assembly.
As the further improvement of such scheme, this electron gun adapter ring is separated by 180 at circumferencial direction
oOpen two through holes.
As the further improvement of such scheme, this pole controlled electron gun structure also comprises molybdenum making sheet, the 3rd ring body, and this molybdenum making sheet sealing is housed in the 3rd ring body and seals an end of fixing the 3rd ring body, and this control utmost point grid and this molybdenum making sheet are fixed.
The utility model has the advantage of: the cathode emission current density of electron gun is little, guaranteed that the life-span is long, reliability is high, this structure can guarantee that the cathode emission of travelling wave tube under two kinds of mode of operations all has good laminarity, and grid is without intercepting and capturing electric current, and grid voltage is moderate, can not make to grid power supply and bring difficulty, be fit to be applied to dual mode traveling wave tube, ceramic part with electron gun places inside in addition, outside except going out to hold the assembly, be all-metal construction, structural strength is high, anti-vibrating and impact.
Description of drawings
The structural representation of the pole controlled electron gun structure that is used for dual mode traveling wave tube that Fig. 1 provides for the utility model better embodiment.
Main symbol description: 1, the 4th porcelain ring; 2, the 5th cup shell; 3, the 6th cup shell; 4, the 3rd porcelain ring; 5, the second cup shell; 6, the second ring body; 7, electron gun switching cylinder; 8, the 3rd cup shell; 9, the first cup shell; 10, the first ring body; 11, the first fixed lever; 12, lead-in wire part; 13, electron gun adapter ring; 14, anode strip; 15, the 7th cup shell; 16, Fourth Ring body; 17, the first lid; 18 second lids; 19, external shield cylinder; 20, ring mould; 21, control grid; 22, inner shield cylinder; 23, negative electrode; 24, alumina powder; 25, heated filament; 26, molybdenum making sheet; 27, lamellar body; 28, the first molybdenum rod; 29, the first porcelain ring; 30, the second porcelain ring; 31 second molybdenum rods; 32, the 3rd ring body; 33, the first cylindrical shell; 34, anode head; 35, the 4th cup shell; 36, rifle shell pad; 37, supporting seat.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also Fig. 1, the structural representation of the pole controlled electron gun structure that is used for dual mode traveling wave tube that it provides for the utility model better embodiment.This pole controlled electron gun structure comprises that electron gun end cap, rifle shell component, the 3rd ring body 32, molybdenum making sheet 26, shaft-like control grid 21, cathode assembly, lamellar body 27, the 7th cup shell 15, the first lid 17, Fourth Ring body 16, the second lid 18 become an assembly by Welding.
The electron gun end cap comprises tubular oxygen-free copper electron gun switching cylinder 7, tubular electrical pure iron electron gun adapter ring 13, anode strip 14, anode head 34.
The rifle shell component comprises molybdenum rod 28, molybdenum rod 31, the first porcelain ring 29, the first cylindrical shell 33, the first cup shell 9, the first ring body 10, the first fixed lever 11, the second porcelain ring 30, the second cup shell 5, the 3rd cup shell 8, the 4th cup shell 35, the 5th cup shell 2, the 3rd porcelain ring 4, the 6th cup shell 3, the 4th porcelain ring 1, the second ring body 6, rifle shell pad 36.
Electron gun adapter ring 13 is separated by 180 at circumferencial direction
oOpen the through hole of two Φ 5mm, shaft-like control grid 21 links together by the plate 26 of molybdenum system, near two through holes being arranged on the tubular grid assembly (being formed by the 7th cup shell 15 and the first lid 17) of negative electrode 23, away from the tubular grid assembly of negative electrode 23 (by Fourth Ring body 16 be connected lid 18 and form) by above-mentioned four through holes with can cut down encircle 32 with molybdenum making sheet are connected and are connected.Locate by the mode that anode head 34 is inserted the slow wave shell, electron gun end cap and slow wave is welded together.The formed large parts of electron gun end cap and electron gun remainder weld together through the second ring body 6 and electron gun switching cylinder 7 by the mode of argon arc welding the most at last, form a complete electron gun.
Negative electrode 23 adopts the hollow annular barium-tungsten dispense cathode, and the emission during work only is 5.1A/cm
2Outside diameter is 8mm, and interior circular diameter is 4.8mm; The outward flange of the inward flange of negative electrode 23 and negative electrode 23 is provided with inner shield cylinder 22 and external shield cylinder 19, is used for preventing the edge-emission effect of negative electrode 23, and prevents that negative electrode 23 electron emissions from beating on shaft-like control grid 21.
The front end of pole controlled electron gun structure is mode and the slow wave welding that anode head 34 adopts the vacuum seal weldering, and the rear end utilizes one to go out to hold assembly to draw each voltage lead, and adopts mode and the shell welding of vacuum seal weldering.
In the present embodiment, shaft-like control grid 21 adopts Mos to make, and two tubular grids all adopt and can cut down material and make.
This pole controlled electron gun structure comprises following number of assembling steps when assembling.
1) electron gun switching cylinder 7, electron gun adapter ring 13, anode strip 14 and anode head 34 are welded together by vacuum seal, form an electron gun end cap.
2) the electron gun end cap is positioned by anode head 34 and slow wave, then be welded into an integral body by vacuum seal.
3) molybdenum rod 28, molybdenum rod 31 and the first porcelain ring 29 are in the same place by Welding, the first cylindrical shell 33 and the first cup shell 9 are in the same place by Welding, the first ring body 10 and the first fixed lever 11 are in the same place by Welding, then above-mentioned three assemblies and the second porcelain ring 30 are welded into an insulation assembly by vacuum seal.
4) the second cup shell 5 and the 3rd cup shell 8 are formed parts by Welding together, above-mentioned 3 described insulation assemblies, the 4th cup shell 35, the 5th cup shell 2 and the 3rd porcelain ring 4 are welded into parts by vacuum seal, then above-mentioned two parts and the 6th cup shell 3, the 4th porcelain ring 1 are welded into large parts by vacuum seal.
5) parts and the second ring body 6, the rifle shell pad 36 with above-mentioned 4 described final formation is welded into parts---rifle shell component by vacuum seal.
6) the 3rd ring body 32 and molybdenum making sheet 26 are passed through Welding together, form parts.
7) will control grid 21 passes with above-mentioned 6 described parts from the central shaft of cathode assembly and welds together by laser spot welding.Cathode assembly contains external shield cylinder 19, ring mould 20, alumina powder 24, heated filament 25, supporting seat 37, inner shield cylinder 22, negative electrode 23, lead-in wire part 12 and porcelain tube.
8) cathode assembly and above-mentioned 5 described rifle shell components, lamellar bodies 27 are welded together by soldering and laser spot welding, be welded into parts with above-mentioned 6 described parts by ratio-frequency welding.
9) the 7th cup shell 15 is become an assembly with the first lid 17 by Welding, the Fourth Ring body is become an assembly with the second lid 18 by Welding.
10) above-mentioned 9 described two assemblies are welded into an assembly by ratio-frequency welding and above-mentioned 8 described parts.
11) above-mentioned 1 described electron gun end cap and above-mentioned 10 described assemblies are carried out sealing-in by argon arc welding, finally form the pole controlled electron gun structure for dual mode traveling wave tube of the present utility model.
The utility model has the advantage of: negative electrode 23 emissioies of electron gun are little, guaranteed that the life-span is long, reliability is high, this structure can guarantee that negative electrode 23 emissions of travelling wave tube under two kinds of mode of operations all have good laminarity, and grid is without intercepting and capturing electric current, and grid voltage is moderate, can not make to grid power supply and bring difficulty, be fit to be applied to dual mode traveling wave tube, ceramic part with electron gun places inside in addition, outside except going out to hold the assembly, be all-metal construction, structural strength is high, anti-vibrating and impact.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (8)
1. pole controlled electron gun structure that is used for dual mode traveling wave tube, it comprises:
The electron gun end cap;
Rifle shell component, one end are housed in this electron gun end cap and with this electron gun end cap and fix;
Cathode assembly, it is housed in this electron gun end cap, and is fixed in this rifle shell component and is housed on the end in this electron gun end cap;
It is characterized in that, this pole controlled electron gun structure also comprises control utmost point grid, and an end of this control utmost point grid is revealed in outside this cathode assembly, and the other end of this control utmost point grid spreads out of from the center of this cathode assembly and is fixed in this rifle shell component.
2. the pole controlled electron gun structure for dual mode traveling wave tube as claimed in claim 1 is characterized in that, being shaped as of this control utmost point grid is shaft-like.
3. the pole controlled electron gun structure for dual mode traveling wave tube as claimed in claim 1 is characterized in that, this cathode assembly also comprises negative electrode, and the middle part of this negative electrode offers the through hole that passes for this control utmost point grid.
4. the pole controlled electron gun structure for dual mode traveling wave tube as claimed in claim 3 is characterized in that, this negative electrode adopts the barium-tungsten dispense cathode of hollow annular.
5. such as claim 3 or 4 described pole controlled electron gun structures for dual mode traveling wave tube, it is characterized in that, this cathode assembly also comprises inward flange and the inner shield cylinder on the outward flange and the external shield cylinder that is arranged on this negative electrode, this inner shield cylinder is housed in this external shield cylinder, and this inner shield jacket casing is located on this negative electrode.
6. the pole controlled electron gun structure for dual mode traveling wave tube as claimed in claim 1, it is characterized in that, this electron gun end cap comprises electron gun switching cylinder, electron gun adapter ring, anode strip and anode head, one end of this electron gun switching cylinder is by this anode strip fixed closed, this electron gun adapter ring is housed in this electron gun switching cylinder, and this anode head is fixed on the center of this anode strip and is positioned at this anode strip dorsad on the side of this cathode assembly.
7. the pole controlled electron gun structure for dual mode traveling wave tube as claimed in claim 6 is characterized in that, this electron gun adapter ring is separated by 180 at circumferencial direction
oOpen two through holes.
8. the pole controlled electron gun structure for dual mode traveling wave tube as claimed in claim 7, it is characterized in that, this pole controlled electron gun structure also comprises molybdenum making sheet, the 3rd ring body, this molybdenum making sheet sealing is housed in the 3rd ring body and seals an end of fixing the 3rd ring body, and this control utmost point grid and this molybdenum making sheet are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458864 CN202888118U (en) | 2012-09-10 | 2012-09-10 | Rod control electronic gun structure used for dual mode travelling wave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458864 CN202888118U (en) | 2012-09-10 | 2012-09-10 | Rod control electronic gun structure used for dual mode travelling wave tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888118U true CN202888118U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220458864 Expired - Fee Related CN202888118U (en) | 2012-09-10 | 2012-09-10 | Rod control electronic gun structure used for dual mode travelling wave tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202888118U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996588A (en) * | 2014-06-09 | 2014-08-20 | 成都国光电气股份有限公司 | Electronic gun of traveling-wave tube |
| CN104078296A (en) * | 2014-07-02 | 2014-10-01 | 南京三乐电子信息产业集团有限公司 | High-assembly-accuracy grid-control electronic gun |
-
2012
- 2012-09-10 CN CN 201220458864 patent/CN202888118U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996588A (en) * | 2014-06-09 | 2014-08-20 | 成都国光电气股份有限公司 | Electronic gun of traveling-wave tube |
| CN104078296A (en) * | 2014-07-02 | 2014-10-01 | 南京三乐电子信息产业集团有限公司 | High-assembly-accuracy grid-control electronic gun |
| CN104078296B (en) * | 2014-07-02 | 2016-09-14 | 南京三乐电子信息产业集团有限公司 | A kind of grided electron gun of high assembly precision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20210910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |