CN111554554A - S-waveband helix traveling wave tube slow wave cold-elastic pressing clamping rod positioning system - Google Patents
S-waveband helix traveling wave tube slow wave cold-elastic pressing clamping rod positioning system Download PDFInfo
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- CN111554554A CN111554554A CN202010419934.4A CN202010419934A CN111554554A CN 111554554 A CN111554554 A CN 111554554A CN 202010419934 A CN202010419934 A CN 202010419934A CN 111554554 A CN111554554 A CN 111554554A
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- Prior art keywords
- clamping rod
- clamping
- rod
- connecting rod
- wave tube
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/12—Vessels; Containers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
- H01J23/16—Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge
- H01J23/24—Slow-wave structures, e.g. delay systems
- H01J23/26—Helical slow-wave structures; Adjustment therefor
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Abstract
The invention discloses a positioning system for a slow wave cold-springing clamping rod of an S-band helix traveling wave tube, which comprises a connecting rod, a clamping rod, a nut, a clamping rod bracket and a clamping rod sleeve; the connecting rod is inserted into a spiral line inner hole of the S-band spiral line traveling wave tube, two ends of the connecting rod extend out, and threads are formed on the outer wall of the connecting rod; the clamping rod support is sleeved at the end parts of the two ends of the connecting rod, three semicircular grooves are formed in the wall of the clamping rod support along the axial direction, and the three semicircular grooves are uniformly arranged at intervals along the circumferential direction; the two ends of the clamping rod are arranged in the semicircular grooves, and the spiral line, the clamping rod and the clamping rod bracket are fixed to the connecting rod through nuts; the clamping rod sleeve is detachably sleeved on the peripheries of the clamping rods to fix the clamping rods, and the clamping rod sleeve is a plurality of clamping rods and is arranged at intervals along the axial direction of the S-band helix traveling wave tube. The positioning system for the slow-wave cold-elastic pressing clamping rod of the S-band helix traveling wave tube is simple in structure, convenient to assemble and use, high in clamping stability and wide in application range.
Description
Technical Field
The invention relates to the technical field of structural design of microwave electronic vacuum devices, in particular to a slow wave cold spring pressing clamping rod positioning system for an S-band spiral line traveling wave tube.
Background
The S-band helix traveling wave tube is a microwave electric vacuum amplifier capable of working in S band, and is a new device with high gain and efficiency and enough bandwidth. For a common helix traveling wave tube, the strength of the clamping rod can maintain that the clamping rod is not influenced by gravity to cause emission deformation dislocation in the process of pushing the clamping rod into the tube shell. However, as the gain is increased, the slow wave structure is longer and longer, and the length of the clamping rod matched with the slow wave structure is increased.
Especially the S-band spiral line traveling wave tube with the gain as high as 55dB, the length of the clamping rod is increased to 370 mm. Such a length of clamping bar would cause a severe angular misalignment of the clamping bar if a conventional single ended fixed pushing device were used.
Disclosure of Invention
The invention aims to provide a positioning system for a slow wave cold-elastic pressing clamping rod of an S-band helix traveling wave tube, which has the advantages of simple structure, convenience in assembly and use, high clamping stability and wide application range.
In order to achieve the purpose, the invention provides a positioning system for a slow wave cold spring pressing clamping rod of an S-band helix traveling wave tube, which comprises a connecting rod, a clamping rod, a nut, a clamping rod bracket and a clamping rod sleeve; wherein the content of the first and second substances,
the connecting rod is inserted into a spiral line inner hole of the S-band spiral line traveling wave tube, two ends of the connecting rod extend out, and threads are formed on the outer wall of the connecting rod;
the clamping rod support is sleeved at the end parts of the two ends of the connecting rod, and three semicircular grooves are formed in the wall of the clamping rod support along the axial direction and are uniformly arranged at intervals along the circumferential direction;
the two ends of the clamping rod are arranged in the semicircular grooves, and the spiral line, the clamping rod and the clamping rod bracket are fixed to the connecting rod through nuts;
the clamping rod sleeve is detachably sleeved on the peripheries of the clamping rods to fix the clamping rods, and the clamping rod sleeve is a plurality of clamping rods and is arranged at intervals along the axial direction of the S-band helix traveling wave tube.
Preferably, the inside diameter of the clamping bar sleeve is larger than the outside diameter of the clamping bar holder to slidably telescope into the clamping bar through the clamping bar holder and secure it in place.
Preferably, the connecting rod, the clamping rod, the nut, the clamping rod support and the clamping rod sleeve are machined from 1Cr18Ni9 Ti.
Preferably, the clamping rod sleeve is a cylindrical sleeve, a clamping rod groove is formed in the inner wall of the clamping rod sleeve along the axial direction, and the clamping rod groove corresponds to the semicircular groove in position one to one so as to limit the clamping rod.
According to the technical scheme, the front clamping rod support and the rear clamping rod support are connected through the connecting rod, a plurality of uniformly distributed positioning semicircular holes are formed in the clamping rod supports and used for ensuring the distribution angles of the clamping rods, and the relative positions of the clamping rods and the spiral line are fixed through steps below the semicircular holes. The clamping rod bracket is fixed through a nut. As the clamping rod is longer, the clamping rod sleeve needs to be sleeved in the elastic pressing process to further fix the ring rod. The number of the clamping rod sleeves is selected according to the length of the clamping rods, the required number of the clamping rod sleeves is small along with the slow push-in pipe shell of the clamping rods and the spiral line in the elastic pressing process, and the redundant clamping rod sleeves can be taken out through the tail end. Therefore, the positions of the two ends of the clamping rod relative to the spiral line and the relative angle between the clamping rods are fixed by the clamping rod support, the clamping rod sleeve fixes the relative angle of the middle part of the clamping rod, and the mechanical strength of the whole system is increased. It is thus clear that it compares with single-ended supporting rod positioning system in the past, and control supporting rod that can be more accurate is suppressing in-process deformation and dislocation, and along with the length increase of holding rod, the telescopic quantity of suitable increase holding rod can not influence the location precision of this system moreover, can satisfy the requirement of all length helix traveling-wave tube cold bullet at present and suppress.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a front structural view of a positioning system for a slow-wave cold-springing clamping rod of an S-band helix traveling-wave tube according to the present invention;
FIG. 2 is a schematic structural diagram of a clamping rod sleeve in a slow-wave cold-springing clamping rod positioning system for an S-band helix traveling-wave tube according to the present invention;
FIG. 3 is a schematic structural diagram of a clamping rod bracket in a slow-wave cold-springing clamping rod positioning system for an S-band helix traveling-wave tube according to the present invention;
FIG. 4 is a cross-sectional view showing the effect of the slow-wave cold-springing clamping rod positioning system for the S-band helical line traveling-wave tube provided by the invention.
Description of the reference numerals
1-connecting rod 2-nut
3-clamping rod support 4-clamping rod sleeve
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "inside, outside" and the like included in a term merely represent the orientation of the term in a conventional use state or a colloquial meaning understood by those skilled in the art, and should not be construed as limiting the term.
Referring to fig. 1 to 4, the invention provides a positioning system for a slow-wave cold-springing clamping rod of an S-band helix traveling-wave tube, which comprises a connecting rod 1, a clamping rod, a nut 2, a clamping rod bracket 3 and a clamping rod sleeve 4; wherein the content of the first and second substances,
the connecting rod 1 is inserted into a spiral line inner hole of the S-waveband spiral line traveling wave tube, two ends of the connecting rod extend out, and threads are formed on the outer wall of the connecting rod;
the clamping rod support 3 is sleeved at the end parts of the two ends of the connecting rod 1, and three semicircular grooves are formed in the wall of the clamping rod support 3 along the axial direction and are uniformly arranged at intervals along the circumferential direction;
the two ends of the clamping rod are arranged in the semicircular grooves, and the spiral line, the clamping rod and the clamping rod bracket 3 are fixed on the connecting rod 1 through the screw cap 2;
the clamping rod sleeve 4 is detachably sleeved on the periphery of the plurality of clamping rods to fix the clamping rods, and the clamping rod sleeve 4 is a plurality of sleeves arranged at intervals along the axial direction of the S-band helix traveling wave tube.
Through the technical scheme, the connecting rod 1 is used for connecting the front clamping rod support 3 and the rear clamping rod support 3, the positioning semicircular holes with a plurality of uniform distributions are formed in the clamping rod supports 3, the distribution angles of the clamping rods are ensured, and the relative positions of the clamping rods and the spiral lines are fixed through the steps below the semicircular holes. The clamping rod support 3 is fixed by a nut 2. As the clamping rod is longer, the ring rod needs to be sleeved into the clamping rod sleeve 4 to further fix the ring rod in the elastic pressing process. The number of the clamping rod sleeves 4 is selected according to the length of the clamping rods, and along with the slow push-in pipe shell of the clamping rods and the spiral line in the elastic pressing process, the number of the required clamping rod sleeves 4 is reduced, and redundant clamping rod sleeves 4 can be taken out through the tail end. Thus, the positions of the two ends of the clamping rod relative to the spiral line and the relative angle between the clamping rods are fixed by the clamping rod support 3, and the clamping rod sleeve 4 fixes the relative angle of the clamping rods in the middle part and increases the mechanical strength of the whole system.
In this embodiment, in order to further fix the clamping rod and ensure the position accuracy of the clamping rod in the whole pressing process, it is preferable that the inner diameter of the clamping rod sleeve 4 is larger than the outer diameter of the clamping rod support 3 so as to penetrate through the clamping rod support 3 to be slidably sleeved into the clamping rod and tightly fixed.
In addition, in order to ensure the strength and the smoothness of the parts and facilitate the installation, debugging and use, the connecting rod 1, the clamping rod, the nut 2, the clamping rod bracket 3 and the clamping rod sleeve 4 are preferably made of 1Cr18Ni9 Ti.
The clamping rod sleeve 4 is a cylindrical sleeve, a clamping rod groove is formed in the inner wall of the cylindrical sleeve along the axial direction, and the positions of the clamping rod groove and the semicircular groove correspond to each other one by one to limit the clamping rods. In this way, the clamping bars can be evenly distributed and their positions fixed.
Concrete, insert the helix hole with connecting rod 1 earlier during the use, both ends threaded department exposes, and supporting rod support 3 embolias both ends, puts into the supporting rod at the half slot of supporting rod support 3, because supporting rod support 3 has strict dimensional requirement, closely laminates between helix, supporting rod, the 3 three of supporting rod support this moment, and the nut 2 at rethread both ends is fixed the connecting rod 1 with the three on. In order to further fix the clamping rods, the situation that the clamping rods are loosened in the moving process or the suspended parts of the clamping rods without supports for supporting in the middle move is avoided, a plurality of clamping rod sleeves 4 need to be sleeved in the peripheries of the clamping rods, and the specific number is determined according to the length of the clamping rods. The positioning system which is sleeved in the clamping rod sleeve 4 has good mechanical strength, and can effectively play a positioning role in the process of pushing the pipe shell. Along with the pushing of the clamping rods, the number of the required clamping rod sleeves 4 is reduced, and the redundant clamping rod sleeves 4 are withdrawn from the rear until the clamping rods are pushed to the designated position, so that the elastic pressing work of the slow wave system is completed.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (4)
1. A slow-wave cold-elastic pressing clamping rod positioning system for an S-band helix traveling wave tube is characterized by comprising a connecting rod (1), clamping rods, nuts (2), a clamping rod support (3) and a clamping rod sleeve (4); wherein the content of the first and second substances,
the connecting rod (1) is inserted into a spiral line inner hole of the S-band spiral line traveling wave tube, two ends of the connecting rod extend out, and threads are formed on the outer wall of the connecting rod;
the clamping rod support (3) is sleeved at the end parts of the two ends of the connecting rod (1), and the wall of the clamping rod support (3) is provided with three semicircular grooves along the axial direction, and the three semicircular grooves are uniformly arranged at intervals along the circumferential direction;
the two ends of the clamping rod are arranged in the semicircular grooves, and the spiral line, the clamping rod and the clamping rod bracket (3) are fixed on the connecting rod (1) through the screw cap (2);
the clamping rod sleeve (4) is detachably sleeved on the plurality of clamping rods and is peripheral to be fixed, the clamping rods are arranged in a plurality of clamping rod sleeves (4) and are arranged along the axial direction of the S-band helix traveling wave tube at even intervals.
2. The slow wave cold spring clamping rod positioning system for the S-band helical line traveling wave tube according to claim 1, wherein the inner diameter of the clamping rod sleeve (4) is larger than the outer diameter of the clamping rod support (3) so as to be slidably sleeved into the clamping rod through the clamping rod support (3) and fixedly positioned.
3. The system for positioning the slow-wave cold-elastic-pressing clamping rod of the S-band spiral traveling wave tube according to claim 1, wherein the connecting rod (1), the clamping rod, the nut (2), the clamping rod bracket (3) and the clamping rod sleeve (4) are made of 1Cr18Ni9 Ti.
4. The system for positioning the clamping rod by slow wave cold spring pressing of the S-band helix traveling wave tube according to claim 1, wherein the clamping rod sleeve (4) is a cylindrical sleeve and clamping rod grooves are formed in the inner wall of the cylindrical sleeve along the axial direction, and the positions of the clamping rod grooves correspond to the positions of the semicircular grooves one by one so as to limit the clamping rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010419934.4A CN111554554A (en) | 2020-05-18 | 2020-05-18 | S-waveband helix traveling wave tube slow wave cold-elastic pressing clamping rod positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010419934.4A CN111554554A (en) | 2020-05-18 | 2020-05-18 | S-waveband helix traveling wave tube slow wave cold-elastic pressing clamping rod positioning system |
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| Publication Number | Publication Date |
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| CN111554554A true CN111554554A (en) | 2020-08-18 |
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|---|---|---|---|
| CN202010419934.4A Pending CN111554554A (en) | 2020-05-18 | 2020-05-18 | S-waveband helix traveling wave tube slow wave cold-elastic pressing clamping rod positioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113681158A (en) * | 2021-08-05 | 2021-11-23 | 南京三乐集团有限公司 | Device and method for welding and fixing tube shell of traveling wave tube |
| CN113770629A (en) * | 2021-09-15 | 2021-12-10 | 成都国光电气股份有限公司 | Tool for welding helix and clamping rod of traveling wave tube |
Citations (7)
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|---|---|---|---|---|
| GB869201A (en) * | 1958-01-16 | 1961-05-31 | Standard Telephones Cables Ltd | Improvements in or relating to travelling wave tubes |
| GB1138900A (en) * | 1965-12-23 | 1969-01-01 | Philips Electronic Associated | Improvements in or relating to travelling wave tubes |
| US4549112A (en) * | 1981-12-22 | 1985-10-22 | Thomson-Csf | Delay line for a travelling wave tube |
| CN101673649A (en) * | 2009-10-14 | 2010-03-17 | 安徽华东光电技术研究所 | Assembling jig of millimeter wave traveling wave tube helix slow wave system and assembling method |
| CN202996760U (en) * | 2012-11-13 | 2013-06-12 | 安徽华东光电技术研究所 | Slow wave structure assembly jig for helix traveling-wave tube |
| CN110690088A (en) * | 2019-10-16 | 2020-01-14 | 南京三乐集团有限公司 | Assembly method of helix traveling wave tube high-frequency circuit |
| CN110838426A (en) * | 2019-12-16 | 2020-02-25 | 安泰德智能装备（深圳）有限公司 | Pre-assembly jig for spiral line and clamping rod |
-
2020
- 2020-05-18 CN CN202010419934.4A patent/CN111554554A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB869201A (en) * | 1958-01-16 | 1961-05-31 | Standard Telephones Cables Ltd | Improvements in or relating to travelling wave tubes |
| GB1138900A (en) * | 1965-12-23 | 1969-01-01 | Philips Electronic Associated | Improvements in or relating to travelling wave tubes |
| US4549112A (en) * | 1981-12-22 | 1985-10-22 | Thomson-Csf | Delay line for a travelling wave tube |
| CN101673649A (en) * | 2009-10-14 | 2010-03-17 | 安徽华东光电技术研究所 | Assembling jig of millimeter wave traveling wave tube helix slow wave system and assembling method |
| CN202996760U (en) * | 2012-11-13 | 2013-06-12 | 安徽华东光电技术研究所 | Slow wave structure assembly jig for helix traveling-wave tube |
| CN110690088A (en) * | 2019-10-16 | 2020-01-14 | 南京三乐集团有限公司 | Assembly method of helix traveling wave tube high-frequency circuit |
| CN110838426A (en) * | 2019-12-16 | 2020-02-25 | 安泰德智能装备（深圳）有限公司 | Pre-assembly jig for spiral line and clamping rod |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113681158A (en) * | 2021-08-05 | 2021-11-23 | 南京三乐集团有限公司 | Device and method for welding and fixing tube shell of traveling wave tube |
| CN113770629A (en) * | 2021-09-15 | 2021-12-10 | 成都国光电气股份有限公司 | Tool for welding helix and clamping rod of traveling wave tube |
| CN113770629B (en) * | 2021-09-15 | 2023-08-08 | 成都国光电气股份有限公司 | Frock is used in welding of travelling wave tube helix, clamping lever |
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Application publication date: 20200818 |
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| RJ01 | Rejection of invention patent application after publication |