CN112838340B - Multi-channel rotary joint - Google Patents
Multi-channel rotary joint Download PDFInfo
- Publication number
- CN112838340B CN112838340B CN202110218091.6A CN202110218091A CN112838340B CN 112838340 B CN112838340 B CN 112838340B CN 202110218091 A CN202110218091 A CN 202110218091A CN 112838340 B CN112838340 B CN 112838340B
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- CN
- China
- Prior art keywords
- coupling plate
- rotating shaft
- inner conductor
- stator
- shaft rod
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/06—Movable joints, e.g. rotating joints
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- Waveguide Connection Structure (AREA)
Abstract
The invention discloses a multi-channel rotary joint, which comprises a stator shell and a rotor shell rotating relative to the stator shell, wherein a rotating shaft rod is arranged in the rotor shell, a coupling plate A and a coupling plate B are arranged on the rotating shaft rod, the coupling plate A is connected with an active segment A, and the active segment A is connected with an inner conductor A; the coupling plate B is connected with an active segment B, and the active segment B is connected with an inner conductor B; the coupling plate A and the coupling plate B are both in non-fixed connection with the rotating shaft rod so as to adjust the relative distance and parallelism between the coupling plate A and the coupling plate B. The invention solves the defects of narrow bandwidth and low isolation of the product, and accurately transmits signals when in use by expanding the bandwidth and improving the isolation.
Description
Technical Field
The invention relates to the technical field of microwave signal transmission, in particular to a multi-channel rotary joint.
Background
The microwave rotary joint is a connecting device for realizing radio frequency signal transmission between two relative rotating mechanisms, and is mainly used for continuously transmitting radio frequency signals to a fixed platform in the 360-degree infinite continuous rotation process of a continuous rotary platform. At present, the existing rotary joint products with the same structure in China are narrow in bandwidth, in actual use, the isolation between all channels is 40-60 dB, and after a period of use, the isolation is reduced, so that signals between all channels are mutually interfered, and accurate transmission cannot be performed.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
In view of the above-mentioned problems in the related art, the present invention provides a multi-channel rotary joint, which can solve the above-mentioned problems.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
The multichannel rotary joint comprises a stator shell and a rotor shell rotating relative to the stator shell, wherein a rotating shaft rod is arranged in the rotor shell, a coupling plate A and a coupling plate B are arranged on the rotating shaft rod, the coupling plate A is connected with an active segment A, and the active segment A is connected with an inner conductor A; the coupling plate B is connected with an active segment B, and the active segment B is connected with an inner conductor B; the coupling plate A and the coupling plate B are both in non-fixed connection with the rotating shaft rod so as to adjust the relative distance and parallelism between the coupling plate A and the coupling plate B.
Further, an elastic isolating ring is arranged at the joint of the rotating shaft rod and the stator shell.
Further, one end of the stator housing, which is opposite to the rotor housing, is provided with a stator cover plate and a rotor cover plate, one end of the stator housing, which is opposite to the other end of the rotor housing, is provided with a rotating shaft rod, a bearing A is arranged between the rotor housing and the stator housing, and a bearing B sleeved on the rotating shaft rod is arranged on the stator cover plate.
Further, a first through hole perpendicular to the axial direction of the rotating shaft is formed in the stator shell, and the inner conductor A is located in the first through hole.
Further, a second through hole parallel to the axial direction of the rotating shaft is formed in the rotor cover plate, and the inner conductor B is located in the second through hole.
Further, a medium a is disposed between the inner conductor a and the first through hole.
Further, a medium F is disposed between the inner conductor B and the second through hole.
The invention has the beneficial effects that:
1. The invention expands the bandwidth from 8% to 20% by adjusting the relative distance and parallelism of the coupling plates, improves the range of test frequency, and solves the defects of narrow product bandwidth and low isolation.
2. The invention adds an elastic isolation ring at the joint of the rotating shaft and the stator shell to improve the isolation from 40-60 dB to 80-90 dB. By expanding the bandwidth and improving the isolation, the signal is accurately transmitted when in use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a multi-channel rotary joint.
In the figure: 1. stator housing, 2, N type housing, 3, inner conductor A,4, medium A, 5, medium B6, power segment A,7, medium C,8, medium D,9, coupling plate A,10, rotor housing, 11, coupling plate B,12, medium E,13, power segment B,14, inner conductor B,15, medium F,16, SMA housing, 17, spindle rod, 18, rotor cover plate, 19, bearing A,20, elastic isolating ring, 21, bearing B,22, stator cover plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
As shown in fig. 1, a multi-channel rotary joint according to an embodiment of the present invention includes a stator housing 1 and a rotor housing 10 that rotates relative to the stator housing 1, a rotating shaft lever 17 is disposed in the rotor housing 10, a coupling plate A9 and a coupling plate B11 are disposed on the rotating shaft lever 17, the coupling plate A9 is connected to an active segment A6, and the active segment A6 is connected to an inner conductor A3; the coupling plate B11 is connected with an active segment B13, and the active segment B13 is connected with an inner conductor B14; the coupling plate A9 and the coupling plate B11 are both in non-fixed connection with the rotating shaft rod 17 so as to adjust the relative distance and the parallelism between the coupling plate A9 and the coupling plate B11.
In one embodiment of the present invention, an elastic isolating ring 20 is disposed at the connection between the spindle rod 17 and the stator housing 1.
In a specific embodiment of the present invention, a stator cover 22 and a rotor cover 18 are disposed at one end of the stator housing 1 opposite to the rotor housing 10, the rotor cover 18 is provided with the rotating shaft 17, a bearing a19 is disposed between the rotor housing 10 and the stator housing 1, and a bearing B21 sleeved on the rotating shaft 17 is disposed on the stator cover 22.
In one embodiment of the present invention, the stator housing 1 is provided with a first through hole perpendicular to the axial direction of the rotating shaft 17, and the inner conductor A3 is located in the first through hole.
In one embodiment of the present invention, the rotor cover 18 is provided with a second through hole parallel to the axial direction of the spindle shaft 17, and the inner conductor B14 is located in the second through hole.
In a specific embodiment of the present invention, a medium A4 is disposed between the inner conductor A3 and the first through hole.
In a specific embodiment of the present invention, a medium F15 is disposed between the inner conductor B14 and the second via.
In order to facilitate understanding of the above technical solutions of the present invention, the following describes the above technical solutions of the present invention in detail by a specific usage manner.
Stator end assembly:
Filling a medium A4 into the N-type shell 2;
pressing the inner conductor A3 into the medium A4;
The N-type shell 2 is connected with the stator shell 1 by using screws;
crimping the elastic spacer ring 20 to the stator housing 1;
placing a medium D8 into the stator housing 1;
connecting the work piece A6 with the inner conductor A3 and fixing the work piece to a medium D8 through a medium C7;
The coupling plate A9 is connected with the power dividing plate A6;
covering the medium B5 on the power segment A6;
pressing the bearing B21 into the stator cover 22;
connecting the stator cover plate 22 with the stator housing 1;
rotor end assembly:
screwing the SMA shell 16 to the rotor cover plate 18;
fixing the rotating shaft lever 17 to the rotor cover plate 18;
sleeving the bearing A19 on the rotor shell 10;
placing a medium E12 in the rotor housing 10;
Connecting the work piece B13 with the inner conductor B14 and being fixed to the medium E12 by the medium C7;
the coupling plate B11 is connected with the power dividing plate B13;
sleeving a medium F15 on the inner conductor B14;
Covering the medium B5 on the power segment B13, and connecting the rotor cover plate 18 with the rotor shell 10;
And a final assembly part:
The rotor end and the stator end are connected to form a single-channel joint, and then a plurality of single-channel joints are overlapped to form a multi-channel joint
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (4)
1. The multichannel rotary joint comprises a stator housing (1) and a rotor housing (10) which rotates relative to the stator housing (1), and is characterized in that a rotating shaft rod (17) is arranged in the rotor housing (10), a coupling plate A (9) and a coupling plate B (11) are arranged on the rotating shaft rod (17), the coupling plate A (9) is connected with an active segment A (6), and the active segment A (6) is connected with an inner conductor A (3); the coupling plate B (11) is connected with an active segment B (13), and the active segment B (13) is connected with an inner conductor B (14); the coupling plate A (9) and the coupling plate B (11) are both in non-fixed connection with the rotating shaft rod (17) so as to adjust the relative distance and the parallelism between the coupling plate A (9) and the coupling plate B (11);
An elastic isolating ring (20) is arranged at the joint of the rotating shaft rod (17) and the stator shell (1);
the stator housing (1) is provided with a first through hole perpendicular to the axial direction of the rotating shaft rod (17), and the inner conductor A (3) is positioned in the first through hole;
the rotor cover plate (18) is provided with a second through hole parallel to the axial direction of the rotating shaft rod (17), and the inner conductor B (14) is positioned in the second through hole.
2. Multichannel rotary joint according to claim 1, characterized in that the stator housing (1) is provided with a stator cover plate (22) and a rotor cover plate (18) at the end opposite to the rotor housing (10), the rotor cover plate (18) is provided with the rotating shaft rod (17), a bearing a (19) is arranged between the rotor housing (10) and the stator housing (1), and the stator cover plate (22) is provided with a bearing B (21) sleeved on the rotating shaft rod (17).
3. Multi-channel rotary joint according to claim 1, characterized in that a medium a (4) is arranged between the inner conductor a (3) and the first through hole.
4. Multi-channel rotary joint according to claim 1, characterized in that a medium F (15) is arranged between the inner conductor B (14) and the second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110218091.6A CN112838340B (en) | 2021-02-26 | 2021-02-26 | Multi-channel rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110218091.6A CN112838340B (en) | 2021-02-26 | 2021-02-26 | Multi-channel rotary joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112838340A CN112838340A (en) | 2021-05-25 |
| CN112838340B true CN112838340B (en) | 2024-08-27 |
Family
ID=75933759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110218091.6A Active CN112838340B (en) | 2021-02-26 | 2021-02-26 | Multi-channel rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112838340B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113948833A (en) * | 2021-09-30 | 2022-01-18 | 中国船舶重工集团公司第七二四研究所 | Non-contact broadband microwave rotary joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120061345A (en) * | 2010-12-03 | 2012-06-13 | 주식회사 이너트론 | Band sstop filter comprising coupling tuning plates |
| CN102522610A (en) * | 2011-12-22 | 2012-06-27 | 南京鑫轩电子系统工程有限公司 | Multichannel microwave rotary joint |
| CN111224199A (en) * | 2020-01-08 | 2020-06-02 | 中国船舶重工集团公司第七二四研究所 | Ka and Ku wave band double-channel rotary joint |
| CN214254684U (en) * | 2021-02-26 | 2021-09-21 | 北京然载通讯科技有限公司 | Multi-channel rotary joint |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206194925U (en) * | 2016-11-29 | 2017-05-24 | 南京鑫轩电子系统工程有限公司 | Single channel microwave rotary joint and multichannel microwave rotary joint |
-
2021
- 2021-02-26 CN CN202110218091.6A patent/CN112838340B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120061345A (en) * | 2010-12-03 | 2012-06-13 | 주식회사 이너트론 | Band sstop filter comprising coupling tuning plates |
| CN102522610A (en) * | 2011-12-22 | 2012-06-27 | 南京鑫轩电子系统工程有限公司 | Multichannel microwave rotary joint |
| CN111224199A (en) * | 2020-01-08 | 2020-06-02 | 中国船舶重工集团公司第七二四研究所 | Ka and Ku wave band double-channel rotary joint |
| CN214254684U (en) * | 2021-02-26 | 2021-09-21 | 北京然载通讯科技有限公司 | Multi-channel rotary joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112838340A (en) | 2021-05-25 |
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