CN102969569A - Mechanical cone scanning and polarization adjusting mechanism used for feed source - Google Patents
Mechanical cone scanning and polarization adjusting mechanism used for feed source Download PDFInfo
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- CN102969569A CN102969569A CN2012105130303A CN201210513030A CN102969569A CN 102969569 A CN102969569 A CN 102969569A CN 2012105130303 A CN2012105130303 A CN 2012105130303A CN 201210513030 A CN201210513030 A CN 201210513030A CN 102969569 A CN102969569 A CN 102969569A
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Abstract
The invention discloses a mechanical cone scanning and polarization adjusting mechanism used for a feed source. The mechanism comprises a bottom disc, a bottom disc central axis, a column sun gear at the upper end of the central axis, a planet gear which is installed in match with a feed source installing device, a scanning motor and a polarization adjusting motor, wherein in the feed source scanning working condition, the scanning motor serves as an execution element, and the polarization adjusting motor (with a brake) serves as a brake element; and a composite mechanism with sun motion and planet motion is formed by two stages of column gear pairs and one stage of non-orthogonal cone gear pair of which the intersection angle is 15-22 degrees, the feed source is enabled to have 5Hz high speed mechanical cone scanning rotation around a main axis, and moreover the polarization of an antenna is kept spatially unchanged in the feed source rotation process. In the non-scanning working condition of the antenna feed source, the polarization adjusting motor serves as the execution element, the scanning motor (with the brake) serves as the brake element, and through three stages of gear transmission pairs, the adjustment on the antenna polarization is realized.
Description
Technical field
The present invention relates to a kind of mechanical conical scanning for feed and polarization modulation mechanism, be used for dynamic platform and waving under the operating mode broadband wireless signal of telecommunication from the technical field of motion tracking recipient face in particular for the antenna of naval vessel platform.
Background technology
Along with the development of science and technology, at sea radio signal being followed the tracks of and received has become possibility.Past, normally the radio signal in a certain frequency range is followed the tracks of by electric conical scanning with common antenna, but restrictive condition be frequency range can not be too wide, for example the ratio of High-frequency and low-frequency is no more than quadruple.If frequency range is super wide, can only adopt the signal of following the tracks of respectively different frequency range more than two slave antennas to solve.The more diversification of task of current naval vessel platform is used for installing multiple antenna without more space.Therefore, the mode that relies on electric conical scanning that wireless signal is followed the tracks of can not satisfy instructions for use.
Summary of the invention
The objective of the invention is in order to overcome the weak point in the above-mentioned background technology, change electric conical scanning into mechanical conical scanning, a kind of mechanical conical scanning and the polarization modulation mechanism for feed that have expanded tracking bandwidth, improved antenna equipment work accommodation ability are provided.
The technical solution adopted for the present invention to solve the technical problems is as follows:
A kind of mechanical conical scanning and polarization modulation mechanism for feed, comprise chassis 27 and feed erecting device, it is characterized in that: be disposed with gearwheel bearing 20 and the rotating disk 16 that is sleeved on the center chassis axle 5 above the chassis 27, the outer ring of gearwheel bearing 20 and rotating disk 16 fix, and the inner ring of gearwheel bearing 20 and chassis 27 fix; The external toothing of gearwheel bearing 20 is meshed with pinion 29 on scan module 12 output shafts; Be fixed with cylinder central gear 7 in the upper end that is positioned at chassis 27 central shafts 5 above the rotating disk 16; The feed erecting device is fixed on the rotating disk 16, and the center line of the central axis of feed erecting device and chassis 27 central shafts intersects and angle is 15 °～22 °; Be installed with planet wheel spindle 22 at rotating disk 16, be set with the planet wheel case at planet wheel spindle 22, put at planetary gear and be fixed with upper planet wheel 19 and lower planetary gear 10, lower planetary gear 10 is roller gear, and cylinder central gear 7 is meshed with lower planetary gear 10; Central shaft at the feed erecting device is fixed with cone axis gear 8, and upper planet wheel 19 is conical gear, and cone axis gear 8 is meshed with upper planet wheel 19; Rotating disk 16 in a relative side with the feed erecting device is provided with counterweight 26.
Wherein, center chassis axle 5 links with chassis 27 by rolling bearing group A 14; Be fixed with polarization modulation gear B 28 in the lower end that is positioned at the center chassis axle 5 below the chassis 27, polarization modulation gear B 28 is meshed with polarization modulation gear A 15 on polarization modulation motor 11 output shafts.
Wherein, be fitted with high frequency joint A 17 in the upper end of center chassis axle 5, be fitted with high frequency joint B 25 in the bottom of feed erecting device central shaft.
Beneficial effect of the present invention: use feed machinery conical scanning and polarization modulation mechanism at naval vessel platform antenna, realized the autotracking of 1.3GHz～10GHz wide-band radio signal, and bandwidth can also be expanded.
Description of drawings
Fig. 1 is that the present invention is a kind of for the mechanical conical scanning of feed and the structural representation of polarization modulation mechanism;
Fig. 2 is the structural representation of main shaft tumbler of the present invention;
Fig. 3 is the structural representation of centre wheel device of the present invention;
Fig. 4 is the structural representation of planetary gear device A of the present invention;
Fig. 5 is the structural representation of planetary gear device B of the present invention
Among the figure: 1. main tumbler, 2. centre wheel device, 3. planetary gear device A, 4. planetary gear device B, 5. center chassis axle, 6. bearing pedestal A, 7. cylinder central gear, 8. cone axis gear, 9. bearing pedestal B, 10. lower planetary gear, 11. polarization modulation motor A, 12. scan modules, 13. feed, 14. rolling bearing group A, 15. polarization modulation gear A, 16. rotating disk, 17. high frequency joint A, 18. ball bearings, 19. upper planet wheel, 20. gearwheel bearings, 21. code-discs, 22. planet wheel spindle, 23. rolling bearing group B, 24. rolling bearing group C, 25. high frequency joint B, 26. counterweights, 27. chassis, 28. the polarization modulation gear B, 29. pinions
Embodiment
Following is an embodiment disclosed by the invention, with reference to accompanying drawing 1,2,3,4,5, a kind of mechanical conical scanning and the polarization modulation mechanism for feed in the present embodiment is made of parts such as main tumbler, centre wheel device, two-stage planetary gear device, feed, high frequency joint, counterweight and polarization modulation gears.
Main tumbler is made of jointly chassis 27, rotating disk 16, gearwheel bearing 20, pinion 29, scan module 12, code-disc 21, polarization modulation motor 11 and polarization modulation gear A 15 etc.Wherein: gearwheel bearing 20 its inner rings and chassis 27 are fixing, its outer ring and rotating disk 16 are fixing, scan module 12 is fixed on the chassis 27, and pinion 29 is driven by scan module 12 and is meshed with gearwheel bearing 20, thereby makes rotating disk 16 do fixed-axis rotation around center chassis axle 5.Polarization modulation motor 11 does not power up when feed scanning operating mode, and the brake of installing on it is in on-position, and polarization modulation motor 11 output shafts are braked, so polarization modulation gear A 15 keeps motionless.Because polarization modulation gear A 15 is meshed with polarization modulation gear B 28, thereby polarization modulation gear B 28 remained static when feed scanned.
The centre wheel device is made of jointly center chassis axle 5, bearing pedestal A 6, cylinder central gear 7 and rolling bearing group A 14 etc.Wherein: polarization modulation gear B 28 and cylinder central gear 7 all are fixed on the center chassis axle 5.Polarization modulation gear B 28 transfixions when feed scans cause center chassis axle 5 and sun roller gear 7 to remain static.
Planetary gear device A is made of jointly lower planetary gear 10, upper planet wheel 19, planet wheel spindle 22 and rolling bearing group B 23 etc.Wherein planet wheel spindle 22 is fixed on the rotating disk 16, lower planetary gear 10 is that external toothing and the number of teeth are identical with cylinder central gear 7, lower planetary gear 10 and upper planet wheel 19 fixed thereon consist of tumbler by rolling bearing group B 23, therefore upper planet wheel 19 had both been done revolution motion around main shaft, and the spider gear shaft that detours again does rotation movement.
Planetary gear device B is made of jointly cone axis gear 8, bearing pedestal B 9 and rolling bearing group C 24 etc.Wherein: bearing pedestal B is fixed on the rotating disk 16, and cone axis gear 8 consists of tumbler by rolling bearing group C 24 and bearing pedestal B 9.The axes intersect of the axis of tumbler and main shaft 5, the scope of the angle of cut are between 15 °～22 °, and the angle of cut of embodiment is 18 °.Because cone axis gear 8 is that external toothing and the number of teeth are identical with upper planet wheel 19, therefore cone axis gear 8 is done 1: 1 counter motion with upper planet wheel 19, institute guarantees that again its attitude in the space remains unchanged in rotation process so that cone axis gear 8 had both been done revolution motion around center chassis axle 5.
When feed 13 was in non-scanning operating mode, scan module 12 was in off-position, the electricity loss brake braking motor axle of installing on it, thus make pinion 29 and the gearwheel bearing 20 that is meshed with it can not rotate, at this moment rotating disk 16 just remains static.Polarization modulation motor 11 powers up, by polarization modulation gear A 15 and polarization modulation gear B 28, cylinder central gear 7 and lower planetary gear 10, upper planet wheel 19 and 8 three grades of transmissions of cone axis gear, feed 13 just can be realized the rotation around self axle, thereby satisfies the instructions for use of receiving antenna.
Claims (3)
1. mechanical conical scanning and polarization modulation mechanism that is used for feed, comprise chassis (27) and feed erecting device, it is characterized in that: be disposed with the gearwheel bearing (20) and the rotating disk (16) that are sleeved on the center chassis axle (5) in the top of chassis (27), the outer ring of gearwheel bearing (20) and rotating disk (16) fix, and the inner ring of gearwheel bearing (20) and chassis (27) fix; The external toothing of gearwheel bearing (20) is meshed with pinion (29) on scan module (12) output shaft; Upper end at chassis (27) central shaft (5) that is positioned at rotating disk (16) top is fixed with cylinder central gear (7); The feed erecting device is fixed on the rotating disk (16), and the center line of the central axis of feed erecting device and chassis (27) central shaft intersects and angle is 15 °～22 °; Be installed with planet wheel spindle (22) at rotating disk (16), be set with the planet wheel case at planet wheel spindle (22), put at planetary gear and to be fixed with upper planet wheel (19) and lower planetary gear (10), lower planetary gear (10) is roller gear, and cylinder central gear (7) is meshed with lower planetary gear (10); Central shaft at the feed erecting device is fixed with cone axis gear (8), and upper planet wheel (19) is conical gear, and cone axis gear (8) is meshed with upper planet wheel (19); Rotating disk (16) in a relative side with the feed erecting device is provided with counterweight (26).
2. a kind of mechanical conical scanning and polarization modulation mechanism for feed according to claim 1 is characterized in that: center chassis axle (5) links with chassis (27) by rolling bearing group A (14); Lower end at the center chassis axle 5 that is positioned at chassis (27) below is fixed with polarization modulation gear B (28), and polarization modulation gear B (28) is meshed with polarization modulation gear A (15) on polarization modulation motor (11) output shaft.
3. a kind of mechanical conical scanning and polarization modulation mechanism for feed according to claim 1, it is characterized in that: be fitted with high frequency joint A (17) in the upper end of center chassis axle 5, be fitted with high frequency joint B (25) in the bottom of feed erecting device central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210513030.3A CN102969569B (en) | 2012-12-04 | 2012-12-04 | Mechanical cone scanning and polarization adjusting mechanism used for feed source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210513030.3A CN102969569B (en) | 2012-12-04 | 2012-12-04 | Mechanical cone scanning and polarization adjusting mechanism used for feed source |
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| Publication Number | Publication Date |
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| CN102969569A true CN102969569A (en) | 2013-03-13 |
| CN102969569B CN102969569B (en) | 2015-02-25 |
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| CN201210513030.3A Active CN102969569B (en) | 2012-12-04 | 2012-12-04 | Mechanical cone scanning and polarization adjusting mechanism used for feed source |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742815A (en) * | 2016-03-01 | 2016-07-06 | 熊猫电子集团有限公司 | Polarization electric adjustment apparatus for vehicle-mounted satellite communication antenna |
| CN106142566A (en) * | 2016-07-29 | 2016-11-23 | 华南理工大学 | A kind of rotatable switching 3D printing head |
| CN106374225A (en) * | 2016-10-26 | 2017-02-01 | 广东通宇通讯股份有限公司 | Antenna and transmission device thereof |
| CN108321539A (en) * | 2018-02-11 | 2018-07-24 | 中国电子科技集团公司第五十四研究所 | A kind of feed sweep mechanism |
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| CN102593589A (en) * | 2012-02-29 | 2012-07-18 | 西安空间无线电技术研究所 | Single pulse wide angle electric scanning reflective array antenna |
| CN202949038U (en) * | 2012-12-04 | 2013-05-22 | 中国电子科技集团公司第五十四研究所 | Mechanical conical scanning and polarization adjusting mechanism for feed source |
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2012
- 2012-12-04 CN CN201210513030.3A patent/CN102969569B/en active Active
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| CN202084643U (en) * | 2011-02-25 | 2011-12-21 | 北京波尔通导科技有限公司 | Vehicle-carried satellite television receiving antenna |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742815A (en) * | 2016-03-01 | 2016-07-06 | 熊猫电子集团有限公司 | Polarization electric adjustment apparatus for vehicle-mounted satellite communication antenna |
| CN106142566A (en) * | 2016-07-29 | 2016-11-23 | 华南理工大学 | A kind of rotatable switching 3D printing head |
| CN106142566B (en) * | 2016-07-29 | 2018-04-13 | 华南理工大学 | A kind of rotatable switching 3D printing nozzle |
| CN106374225A (en) * | 2016-10-26 | 2017-02-01 | 广东通宇通讯股份有限公司 | Antenna and transmission device thereof |
| CN106374225B (en) * | 2016-10-26 | 2023-08-08 | 广东通宇通讯股份有限公司 | Antenna and transmission device thereof |
| CN108321539A (en) * | 2018-02-11 | 2018-07-24 | 中国电子科技集团公司第五十四研究所 | A kind of feed sweep mechanism |
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| CN102969569B (en) | 2015-02-25 |
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