CN206163453U - Travelling wave tube multi stage decompression collector - Google Patents
Travelling wave tube multi stage decompression collector Download PDFInfo
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- CN206163453U CN206163453U CN201621267839.2U CN201621267839U CN206163453U CN 206163453 U CN206163453 U CN 206163453U CN 201621267839 U CN201621267839 U CN 201621267839U CN 206163453 U CN206163453 U CN 206163453U
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Abstract
The utility model discloses a travelling wave tube multi stage decompression collector, this travelling wave tube multi stage decompression collector include that between collector and the outer collector, this travelling wave tube multi stage decompression collector still included before an insulating ceramic section of thick bamboo was located along at least one preceding collector and final stage collector, an insulating ceramic section of thick bamboo and outer collector of axial sequential distribution: the metal elastic component, insulating ceramic spare and the welding of final stage collector are passed through with the welding of outer collector, the other end to its one end, and adjustable final stage collector is at the inside axial position of travelling wave tube multi stage decompression collector, setting element with fixed adjusted metal elastic component length. The utility model discloses travelling wave tube multi stage decompression collector can realize realizing the adjustment to the axial position of final stage collector inside travelling wave tube multi stage decompression collector through the adjustment to metal elastic component length after joining in marriage the welding completion to can promote the many depressed colector's of travelling wave tube energy recovery efficiency.
Description
Technical field
The utility model is related to vacuum microwave field of electronic devices.Receive more particularly, to a kind of travelling-wave tubes multilevel decompression
Collector.
Background technology
Travelling-wave tubes is the broad-spectrum electron tube of a class, and electron gun transmitting high energy electron is noted, and by periodic magnetic field
Produce convergence.Electronics note surrenders the energy of carrying when by slow wave system, and the microwave signal in slow wave system is amplified.Handing over
After going out portion of energy, electronics note also carry substantial amounts of high energy electron.In order to reclaim this portion of energy, depressed collector is introduced
(mainly multi-level depressurization collector) is that a kind of efficient important means is put forward in travelling-wave tubes.
By the multilevel decompression structure of multi-level depressurization collector, the high energy electron for completing interaction shape in buck configuration is made
Into retarding field in slow down, reduce the speed on electron bombardment collector surface, reclaim the energy in high energy electron note, lifted
The efficiency of whole travelling-wave tubes.And the note of the electronics after energy is surrendered, it is not that collector is entered with a unified energy state,
But include substantial amounts of discrete state, from terms of theory analysis angle, in order to effectively lift the efficiency of travelling-wave tubes, depressed collector
Series it is The more the better, i.e., note for the electronics of each energy state, all arranging corresponding collector carries out energy time
Receive.
In actual engineer applied, consider volume, reliability and the supporting high voltage power supply of travelling-wave tubes etc. it is actual because
Element, travelling-wave tubes is mainly using three-level or level Four depressed collector.In order to lift traveling wave as far as possible under limited step-down series
The efficiency of pipe, generally introduces and the equipotential electrode of negative electrode in collector end, so can make effectively lift traveling wave
Pipe homogeneous tube efficiency.
As shown in figure 1, by taking the level Four depressed collector commonly used as an example, existing multistage depressed collector for traveling-wave tube includes edge
Three front collectors and final stage collector 6 of axial order distribution, front collector includes the first collector 1, the and of the second collector 2
3rd collector 3, existing multistage depressed collector for traveling-wave tube also includes insulating ceramics cylinder 4 and outer collector 5, the first collector
1st, in the inner side of insulating ceramics cylinder 4, the Welding of outer collector 5 is in insulation for the second collector 2 and the equal Welding of the 3rd collector 3
The outside of ceramic cylinder 4, insulating ceramics cylinder 4 generally can be the aluminium oxide ceramics cylinder of insulating effect, and insulating ceramics cylinder 4 is used for front collection
The insulation of pole and outer collector 5.Positioned at the final stage collector 6 on multistage depressed collector for traveling-wave tube afterbody (i.e. right side in Fig. 1)
Weld with insulating ceramics part 7, insulating ceramics part 7 is welded with metal connecting piece 8, metal connecting piece 8 is welded again with outer collector 5,
So as to, the connected mode between outer collector 5 and final stage collector 6 is that welding is fixedly connected mode, travelling-wave tubes multilevel decompression
After the completion of collector erection welding, axial location of the final stage collector 6 inside multistage depressed collector for traveling-wave tube cannot change.
Wherein insulating ceramics part 7 is used to realize final stage collector 6 with the insulation of outer collector 5.
As described above, the relative position of existing multistage depressed collector for traveling-wave tube internal electrode structure is fixation cannot change
Become, and consider that travelling-wave tubes is a kind of integrated device by a large amount of component assemblies, there is substantial amounts of people in assembling process
Work operation link, this just unavoidably produces the inconsistent of the aspects such as emission of cathode, the centering of male-female pole, slow-wave circuit length, and
These inconsistent factors directly affects the Energy distribution state of multistage depressed collector for traveling-wave tube entrance electronics note, cause same
Multistage depressed collector for traveling-wave tube entrance electronics note state has differences between one batch different rows wave duct, travelling-wave tubes multilevel decompression
The energy recovery efficiency of collector is relatively low.But the internal gathering pole position of multistage depressed collector for traveling-wave tube cannot be according to assembling weldering
Corresponding appropriateness adjustment is carried out according to test result and the difference of design parameter after the completion of connecing, after the completion of causing erection welding
The energy recovery efficiency of multistage depressed collector for traveling-wave tube can not be lifted again.Wherein, the design of multistage depressed collector for traveling-wave tube
Parameter includes structural parameters and performance parameter corresponding with structural parameters etc..
Therefore, in order to lift TWT efficiency and performance, it is desirable to provide a kind of traveling wave that can lift energy recovery efficiency
Pipe multi-level depressurization collector.
Utility model content
The purpose of this utility model is to provide a kind of multistage depressed collector for traveling-wave tube, solves existing travelling-wave tubes multistage
Depressed collector cannot adjust internal structure, cannot specially adjust the axial location of end collector, and caused existing
Multistage depressed collector for traveling-wave tube is to the problem that adaptability is poor, energy recovery efficiency is low that different electronics are noted.
To reach above-mentioned purpose, the utility model adopts following technical proposals：
A kind of multistage depressed collector for traveling-wave tube, receives including collector before at least one for being sequentially distributed vertically and final stage
Collector, insulating ceramics cylinder and outer collector, the insulating ceramics cylinder is located between the front collector and the outer collector,
The multistage depressed collector for traveling-wave tube also includes
Metal spring piece, its one end is received by insulating ceramics part with the outer collector welding, the other end with the final stage
Collector is welded, and can adjust axial location of the final stage collector inside multistage depressed collector for traveling-wave tube；And fixed adjustment
The keeper of the metal spring piece length afterwards.The adjustable in length of the metal spring piece, by metal spring piece itself
The adjustable axial location for realizing the final stage collector inside multistage depressed collector for traveling-wave tube of length can adjust, institute
State keeper and realize matching somebody with somebody for the metal spring piece length after fixed adjustment, the metal spring piece and the keeper
Conjunction realizes the final stage that can be adjusted after the completion of the erection welding to multistage depressed collector for traveling-wave tube and after fixed adjustment
Axial location of the collector inside multistage depressed collector for traveling-wave tube, changes multistage depressed collector for traveling-wave tube inside step-down electricity
Field distribution, adjusts electronics note divergent state, can improve the energy recovery efficiency of multistage depressed collector for traveling-wave tube, cause traveling wave
The energy recovery efficiency of pipe multi-level depressurization collector is maximized and is possibly realized.
Preferably, the quantity of the front collector is 2 or 3.
Preferably, the multistage depressed collector for traveling-wave tube also includes：For weld described metal spring piece one end with it is described
First metal connecting piece of outer collector, and for welding the second of the metal spring piece other end and the insulating ceramics part
Metal connecting piece.
Preferably, the keeper includes the positioning tube and locating ring with the final stage collector axial sliding fit, institute
State positioning tube one end and be provided with internal thread with the outer collector welding, the other end, the positioning is equipped with and the internal thread
The external screw thread matched somebody with somebody.The locating ring is capable of achieving to exert a force to adjust the final stage collector with the cooperation of the screw thread of the positioning tube
State the length after the length of metal spring piece, and the fixation metal spring piece adjustment.
Preferably, metal spring piece is metal bellows.
The beneficial effects of the utility model are as follows：
Technical scheme described in the utility model can be after the completion of the erection welding of multistage depressed collector for traveling-wave tube, by adjusting
Whole and fixed metal spring piece length, so as to adjust and axle of the fixed final stage collector inside multistage depressed collector for traveling-wave tube
To position, and then change multistage depressed collector for traveling-wave tube inside step-down Electric Field Distribution, electronics note divergent state is adjusted, to improve
The energy recovery efficiency of multistage depressed collector for traveling-wave tube so that the energy recovery efficiency of multistage depressed collector for traveling-wave tube is most
Bigization is possibly realized.
Description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 illustrates the structural representation of multistage depressed collector for traveling-wave tube in prior art.
Fig. 2 illustrates the structural representation of multistage depressed collector for traveling-wave tube disclosed in the utility model.
Fig. 3 illustrates the axial location adjustment of final stage collector in multistage depressed collector for traveling-wave tube disclosed in the utility model
Schematic diagram.
Specific embodiment
In order to be illustrated more clearly that the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar part is indicated with identical reference in accompanying drawing.It will be appreciated by those skilled in the art that under
The specifically described content in face is illustrative and be not restrictive, and should not limit protection domain of the present utility model with this.
As shown in Fig. 2 the utility model discloses a kind of multistage depressed collector for traveling-wave tube, is distributed including order vertically
Front collector and final stage collector 5, insulating ceramics cylinder 4 and final stage collector 6.The multistage drop of travelling-wave tubes disclosed in the utility model
Pressure collects extremely level Four depressed collector, front collector for three, be respectively the first collector 1, the second collector 2 and the 3rd
Collector 3, the first collector 1, the second collector 2, the 3rd collector 3 and final stage collector 6 together form level Four step-down knot
Structure.Structure same as the prior art is：First collector 1, the second collector 2 and the equal Welding of the 3rd collector 3 are exhausted
The inner side of edge ceramic cylinder 4, the Welding of outer collector 5 is in the outside of insulating ceramics cylinder 4, i.e. insulating ceramics cylinder 4 be located at front collector and
Between outer collector 5.
The multistage depressed collector for traveling-wave tube also includes：
Metal spring piece 9, its one end and the outer collector 5 are welded, the other end is received by insulating ceramics part 19 with final stage
Collector 6 is welded, and can adjust axial location of the final stage collector 6 inside multistage depressed collector for traveling-wave tube；After fixed adjustment
The length of metal spring piece 9 keeper.The other end of metal spring piece 9 is welded by insulating ceramics part 10 with final stage collector 6
The meaning be：The other end of metal spring piece 9 is welded with insulating ceramics part 10 and insulating ceramics part 10 is welded with final stage collector 6.
Welded by the one end of metal spring piece 9 and outer collector 5, the other end welds reality by insulating ceramics part 10 and final stage collector 6
Now multistage depressed collector for traveling-wave tube inner space is airtight.The adjustable in length of metal spring piece 9, by metal spring piece 9
The adjustable axial location for realizing final stage collector 6 inside multistage depressed collector for traveling-wave tube of its length can adjust,
Keeper realizes the length of the metal spring piece after fixed adjustment 9, and the cooperation of metal spring piece 9 and keeper is realized can be right
Adjust after the completion of the erection welding of multistage depressed collector for traveling-wave tube and the final stage collector 6 after fixed adjustment is multistage in travelling-wave tubes
Axial location inside depressed collector, changes multistage depressed collector for traveling-wave tube inside step-down Electric Field Distribution, adjusts electronics note
Divergent state, can improve the energy recovery efficiency of multistage depressed collector for traveling-wave tube, cause multistage depressed collector for traveling-wave tube
Energy recovery efficiency maximize be possibly realized.
In this programme, multistage depressed collector for traveling-wave tube also includes：For the one end of welding metal elastic component 9 and outer collector
5 the first metal connecting piece 11, because in actual welding process, the one end of metal spring piece 9 is directly welded at into outer collection
There is operational inconvenience on pole 5, so welding with the one end of metal spring piece 9 and the first metal connecting piece 11 and the first metal company
The welding between the one end of metal spring piece 9 and outer collector 5 is realized in fitting 11 and the welding of outer collector 5.What this kind of structure was brought
Beneficial effect is：In actual welding process, the welding between metal spring piece 9 and outer collector 5 is facilitated implementation.
In this programme, multistage depressed collector for traveling-wave tube also includes：For the other end of welding metal elastic component 9 and insulation
Second metal connecting piece 12 of ceramic member 10, because the undersize of existing insulating ceramics part is being welded direct to metallic elastic
On part 9, so being welded with the other end of metal spring piece 9 and the second metal connecting piece 12 and the second metal connecting piece 12 and insulation pottery
Porcelain piece 10 is welded, and realizes the welding between the other end of metal spring piece 9 and insulating ceramics part 10.The beneficial effect that this kind of structure is brought
It is really：Insulating ceramics part 10 in this programme can use existing insulating ceramics part, and without making large-sized insulation pottery
Porcelain piece.
In this programme, keeper includes locating ring 14 and the positioning tube 13 with the axial sliding fit of final stage collector 6, positioning
Cylinder 13 realizes and the axial sliding fits of final stage collector 6 that the one end of positioning tube 13 and outer collector 5 are welded, the other end on the inside of it
Internal thread is provided with, locating ring 14 is provided with the external screw thread matched with internal thread.Locating ring 14 coordinates with the screw thread of positioning tube 13 can be real
Now final stage collector 6 is exerted a force to adjust the length of metal spring piece 9, and the length after fixed metal spring piece 9 is adjusted.Positioning
13 one end of cylinder are welded for the inner side of the one end of positioning tube 13 with the preferred mode of welding of outer collector 5 with the outside of outer collector 5,
So it is easy to the operation welded.The inner side of positioning tube 13 and the axial sliding fit of final stage collector 6 are to limit final stage collector 6
Position adjustment can only be axially movable carried out, is eliminated because adjustment final stage collector 6 is inside multistage depressed collector for traveling-wave tube
The issuable site error brought in the change in location in other directions during axial location.Receive with final stage the inner side of positioning tube 13
The axial sliding fit of collector 6 can be realized by guide rail.
In this programme, metal spring piece 9 is metal bellows.
Preferred embodiment of the present utility model is related to a kind of multistage depressed collector for traveling-wave tube preparation method, for example include as
Lower step：
Collector is welded on insulating ceramics cylinder inner side before at least one for being sequentially distributed vertically, by metal spring piece one
Welded by insulating ceramics part and final stage collector with the welding of outer collector, the other end at end；
According to the design parameter of multistage depressed collector for traveling-wave tube, received by adjusting the length adjustment final stage of metal spring piece
Axial location of the collector inside multistage depressed collector for traveling-wave tube, and then change the step-down of multistage depressed collector for traveling-wave tube inside
Electric Field Distribution, adjusts electronics note divergent state, lifts the energy recovery efficiency of multistage depressed collector for traveling-wave tube so that by traveling wave
The energy recovery efficiency of pipe multi-level depressurization collector is maximized and is possibly realized；And fix metal spring piece tune by using keeper
The axial location that length after whole is fixed after adjustment of the final stage collector inside multistage depressed collector for traveling-wave tube.Preferably,
The above-mentioned design parameter according to multistage depressed collector for traveling-wave tube, by end described in the length adjustment of the adjustment metal spring piece
Level axial location of the collector inside multistage depressed collector for traveling-wave tube be further：Collected according to travelling-wave tubes multilevel decompression
While the design parameter of pole is tested multistage depressed collector for traveling-wave tube, by the length adjustment for adjusting metal spring piece
Axial location of the final stage collector inside multistage depressed collector for traveling-wave tube, this one side test parameter is while the side of adjustment
Formula, has been better achieved multistage in travelling-wave tubes to final stage collector after the completion of multistage depressed collector for traveling-wave tube erection welding
The adjustment of the axial location inside depressed collector so that the adjustment is more accurate, can preferably lift travelling-wave tubes multilevel decompression
The energy recovery efficiency of collector.
In this programme, metal spring piece one end and outer collector are welded, the other end is received by insulating ceramics part and final stage
Collector welding is further included：
Metal spring piece one end is welded by the first metal connecting piece with outer collector, i.e. by metal spring piece one end
Weld with outer collector with the welding of the first metal connecting piece and by the first metal connecting piece, so so that in actual welding
The welding between metal spring piece and outer collector is facilitated implementation in journey；The metal spring piece other end is connected by the second metal
Part is welded with insulating ceramics part, i.e. the metal spring piece other end is welded with the second metal connecting piece and is connected on the second metal
Part and insulating ceramics part are welded, so so that the insulating ceramics part in this programme can use existing insulating ceramics part, and without
Make large-sized insulating ceramics part.
In this programme, keeper includes positioning tube and locating ring, then, the process of above-mentioned adjustment and fixation is further included：
The final stage collector of the inner side of positioning tube and welding ceramics insulating part is set to into axial sliding fit, by positioning tube
One end is welded with outer collector, and in the positioning tube other end internal thread is arranged, and the external screw thread matched with internal thread is arranged in locating ring；
The inner side of positioning tube and final stage collector are set to into axial sliding fit so that final stage collector be defined as can only be vertically
Motion carries out position adjustment, and elimination can during axial location of the final stage collector inside multistage depressed collector for traveling-wave tube because adjusting
The site error brought in the change in location in other directions that can be produced；Positioning tube one end is preferred with the welding of outer collector
Mode is welded for the inner side of positioning tube one end with the outside of outer collector, is so easy to the operation welded；Positioning tube inner side and end
Level collector axial sliding fit can be realized by guide rail；
According to the design parameter of multistage depressed collector for traveling-wave tube, coordinate right by using locating ring and the screw thread of positioning tube
Final stage collector exerts a force to adjust the length of metal spring piece, and then adjusts final stage collector in multistage depressed collector for traveling-wave tube
Internal axial location；And the length after fixed metal spring piece adjustment, and then fixed final stage collector is in the multistage drop of travelling-wave tubes
The axial location after adjustment inside pressure collector.Preferably, in the design parameter pair according to multistage depressed collector for traveling-wave tube
While multistage depressed collector for traveling-wave tube is tested, coordinate by using the screw thread of locating ring and positioning tube and final stage is collected
Pole exerts a force to adjust the length of metal spring piece, and then adjusts axle of the final stage collector inside multistage depressed collector for traveling-wave tube
To position；And the length after fixed metal spring piece adjustment.
In this programme, metal spring piece adopts metal bellows.
As shown in figure 3, coordinating to final stage collector force to adjust gold in the screw thread by using locating ring and positioning tube
The length of category elastic component, and then adjust axial location of the final stage collector inside multistage depressed collector for traveling-wave tube；And it is fixed
After length after metal spring piece adjustment, and then adjustment of the fixed final stage collector inside multistage depressed collector for traveling-wave tube
During axial location：
When rotational positioning ring makes it when moving near multistage depressed collector for traveling-wave tube direction, locating ring promotes final stage to receive
Collector to the head (left side in Fig. 3) of multistage depressed collector for traveling-wave tube is moved, and metal spring piece length is compressed；
When rotational positioning ring makes it when moving away from multistage depressed collector for traveling-wave tube direction, metal spring piece relies on it
Elastic elongation, and promote final stage collector to move to the afterbody (right side in Fig. 3) of multistage depressed collector for traveling-wave tube；
Axial location of final stage collector after adjustment inside multistage depressed collector for traveling-wave tube so that test is obtained
The test result of multistage depressed collector for traveling-wave tube when meeting design parameter, stop the rotation locating ring with the gold after fixed adjustment
The length of category elastic component, and then axial position of the final stage collector after fixed adjustment inside multistage depressed collector for traveling-wave tube
Put.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model, for those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms, all of embodiment cannot be exhaustive here,
It is every to belong to the obvious change or change still in of the present utility model that the technical solution of the utility model extends out
The row of protection domain.
Claims (5)
1. a kind of multistage depressed collector for traveling-wave tube, collects including collector before at least one for being sequentially distributed vertically and final stage
Pole, insulating ceramics cylinder and outer collector, the insulating ceramics cylinder is located between the front collector and the outer collector, its
It is characterised by,
The multistage depressed collector for traveling-wave tube also includes
Metal spring piece, its one end is with the outer collector welding, the other end by insulating ceramics part and the final stage collector
Welding, can adjust axial location of the final stage collector inside multistage depressed collector for traveling-wave tube；With
The keeper of the metal spring piece length after fixed adjustment.
2. multistage depressed collector for traveling-wave tube according to claim 1, it is characterised in that the quantity of the front collector is
2 or 3.
3. multistage depressed collector for traveling-wave tube according to claim 1, it is characterised in that the travelling-wave tubes multilevel decompression is collected
Pole also includes：For welding first metal connecting piece of described metal spring piece one end and the outer collector, and for welding
Second metal connecting piece of the metal spring piece other end and the insulating ceramics part.
4. multistage depressed collector for traveling-wave tube according to claim 1, it is characterised in that the keeper include with it is described
The positioning tube and locating ring of final stage collector axial sliding fit, it is described positioning tube one end and the outer collector welding, another
End is provided with internal thread, and the positioning is equipped with the external screw thread matched with the internal thread.
5. the multistage depressed collector for traveling-wave tube according to any claim in Claims 1-4, it is characterised in that gold
Category elastic component is metal bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267839.2U CN206163453U (en) | 2016-11-23 | 2016-11-23 | Travelling wave tube multi stage decompression collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267839.2U CN206163453U (en) | 2016-11-23 | 2016-11-23 | Travelling wave tube multi stage decompression collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206163453U true CN206163453U (en) | 2017-05-10 |
Family
ID=58660992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621267839.2U Active CN206163453U (en) | 2016-11-23 | 2016-11-23 | Travelling wave tube multi stage decompression collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206163453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486328A (en) * | 2016-11-23 | 2017-03-08 | 北京真空电子技术研究所(中国电子科技集团公司第十二研究所） | Multistage depressed collector for traveling-wave tube and multistage depressed collector for traveling-wave tube manufacture method |
-
2016
- 2016-11-23 CN CN201621267839.2U patent/CN206163453U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106486328A (en) * | 2016-11-23 | 2017-03-08 | 北京真空电子技术研究所(中国电子科技集团公司第十二研究所） | Multistage depressed collector for traveling-wave tube and multistage depressed collector for traveling-wave tube manufacture method |
| CN106486328B (en) * | 2016-11-23 | 2018-02-02 | 北京真空电子技术研究所(中国电子科技集团公司第十二研究所） | Multistage depressed collector for traveling-wave tube and multistage depressed collector for traveling-wave tube preparation method |
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