CN214122457U - Servo transmission platform of coaxial feed airborne weather radar - Google Patents
Servo transmission platform of coaxial feed airborne weather radar Download PDFInfo
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- CN214122457U CN214122457U CN202022948614.6U CN202022948614U CN214122457U CN 214122457 U CN214122457 U CN 214122457U CN 202022948614 U CN202022948614 U CN 202022948614U CN 214122457 U CN214122457 U CN 214122457U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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Abstract
The utility model discloses a coaxial feed machine carries meteorological radar servo transmission platform, it includes every single move drive unit, position drive unit, base, antenna mounting bracket, antenna and coaxial rotary joint. The pitching transmission unit and the azimuth transmission unit are installed on the base, the antenna installation frame and the antenna are installed on the pitching transmission unit after being connected, and the coaxial rotary joint is installed on the pitching transmission unit and the azimuth transmission unit respectively. When the servo transmission platform receives the control instruction and the data signal, the pitching transmission unit and the azimuth transmission unit drive the radar antenna to carry out airspace scanning, capture and track a target, and feed back the angle and the speed to the inside of the base to be compared and corrected with an expected value, so that the platform forms a closed-loop control system. The utility model discloses improved the cable and rotated the cross interference and the wearing and tearing of in-process, reduced antenna weight, reduced antenna machining precision and platform weight, can be used to the airborne weather radar antenna mechanical scanning control of various aircraft.
Description
Technical Field
The utility model belongs to the technical field of electronic equipment, in particular to airborne weather radar servo transmission platform can be used to the radar antenna mechanical scanning control of various aircraft.
Background
The servo transmission platform of the airborne weather radar is electromechanical integrated equipment for searching, capturing a target, tracking and measuring the position and various motion parameters of the target by the airborne weather radar, drives a radar antenna to move in a pitching and azimuth dimension according to a motion rule given by a radar system, so that the radar can realize the functions of capturing and tracking the target, and simultaneously feeds back the information of the pitching and azimuth dimension angle motion to the radar system, so that the radar system can accurately judge the position of the target.
Signals between the antenna and the transceiver module of the existing airborne weather radar servo transmission platform are transmitted through waveguides or cables, the weight and the volume of the servo transmission platform can be increased in a waveguide transmission mode, the problems of cross interference and abrasion of the cables in pitching dimension and azimuth dimension can occur in a cable transmission mode, and the reliability of the cables is reduced, and the service life of the cables is shortened.
The existing airborne weather radar servo transmission platform antenna generally adopts a flat plate crack array antenna, and has the advantages of heavy weight, high processing precision, long period, complex process and high cost.
The existing airborne weather radar servo transmission platform mostly adopts a transmission mode of adding a reduction gearbox to a motor or directly driving the motor, and the reduction gearbox is generally in multi-stage dead axle gear transmission. The multi-stage dead axle gear reduction box with large transmission ratio has large volume, heavy weight, poor transmission precision and large total return difference. In the direct-drive transmission mode of the motor, although a middle speed reducing mechanism is omitted, a large-torque motor needs to be selected, the large-torque motor is large in size, and the motor needs a larger space to be installed.
Disclosure of Invention
An object of the utility model is to above-mentioned prior art not enough, provide a coaxial feed machine carries meteorological radar servo transmission platform to improve the cable and rotate in-process cross interference and wearing and tearing problem, reduce the weight and the working costs of antenna, reduce the processing cycle and the machining precision of antenna, reduce servo transmission platform's volume, reduce weight and total return difference, improve servo transmission precision and control performance.
The technical idea of the utility model is that: the static semi-rigid coaxial cable and the dynamic semi-rigid coaxial cable of the platform are connected in series by selecting the coaxial rotary joint in the pitching dimension and the azimuth dimension, so that the problems of cross interference and abrasion of the cables in the pitching dimension and azimuth dimension rotating processes are solved, the weight and the processing cost of the antenna are reduced by selecting the microstrip antenna, the processing period and the processing precision of the antenna are reduced, the volume of the servo transmission platform is reduced by adopting a transmission mode of the brushless direct current servo motor, the planetary reducer and the primary reduction gear pair, the weight and the total return difference are reduced, and the servo transmission precision and the control performance are improved.
According to the technical idea, the utility model discloses a coaxial feed machine carries meteorological radar servo transmission platform, including every single move drive unit 1, position drive unit 2, base 3, antenna mounting bracket 4, antenna 5 and coaxial rotary joint 6, this every single move drive unit 1 and position drive unit 2 install on base 3, install on every single move drive unit 1 after this antenna mounting bracket 4 and antenna 5 are connected, and this coaxial rotary joint 6 is installed respectively on every single move drive unit 1 and position drive unit 2, its characterized in that:
the antenna 5 adopts a microstrip antenna, so that the weight and the processing cost of the antenna are reduced, and the processing period and the processing precision of the antenna are reduced.
Electric signals between the microstrip antenna 5 and the inside of the base 3 are transmitted through a semi-rigid coaxial cable, coaxial rotary joints 6 are installed on the pitching transmission unit 1 and the azimuth transmission unit 2, and the static semi-rigid coaxial cable and the dynamic semi-rigid coaxial cable are connected in series through the coaxial rotary joints 6, so that the problems of cross interference and abrasion of the cables in the rotation process of the platform are solved.
Further, the pitch transmission unit 1 includes a pitch motor 11, a pitch reducer 12, a pitch reduction gear pair 13, a pitch angle potentiometer 14, and a pitch member 15; the pitch reduction gear pair 13 is a primary gear transmission, the pitch reducer 12 and the pitch reduction gear pair 13 together form a reduction mechanism of the pitch transmission unit 1, the pitch motor 11 and the pitch reducer 12 are mounted on a pitch member 15 in a clearance fit manner, and a rotating shaft of the pitch member 15 is concentrically connected with a rotating shaft of the pitch angle potentiometer 14.
Further, the azimuth transmission unit 2 comprises an azimuth motor 21, an azimuth reducer 22, an azimuth reduction gear pair 23, an azimuth angle potentiometer 24, an azimuth component 25, a left fork arm 26, a right fork arm 27 and a driving box 28; the azimuth reduction gear pair 23 is a one-stage gear transmission, the azimuth reducer 22 and the azimuth reduction gear pair 23 together form a reduction mechanism of the azimuth transmission unit 2, the azimuth motor 21 and the azimuth reducer 22 are mounted on a drive box 28 in a clearance fit manner, a rotation shaft of the azimuth member 25 is concentrically connected with a rotation shaft of the azimuth angle potentiometer 24, and the left yoke 26, the right yoke 27 and the drive box 28 are respectively mounted on the base 3.
Further, the base 3 is formed by integrally machining aluminum alloy, the cross section of the base is similar to an octagon, the thinnest part of the wall thickness is 3mm, the thickest part is 4mm, and the base is used as a support of the whole servo transmission platform.
Further, the antenna mounting frame 4 is formed by processing carbon fibers, and the carbon fibers have the characteristic of small specific gravity, so that the strength and the rigidity of the carbon fibers meet the requirements, and the weight of the servo transmission platform is reduced.
Compared with the prior art, the utility model have following advantage:
1. the utility model discloses owing to chooseed for use microstrip antenna, it has the advantage that the quality is light, with low costs, therefore has reduced the weight and the working costs of antenna, has reduced the processing cycle and the machining precision of antenna.
2. The utility model discloses a coaxial rotary joint 6 is with static semi-rigid coaxial cable and the semi-rigid coaxial cable series connection of developments, has improved the cable and has rotated the cross interference and the wearing and tearing problem of in-process at the platform.
3. The utility model discloses owing to adopted the one-level gear pair to add planetary reducer's reduction gears on every single move drive unit 1 and position drive unit 2, reduced servo drive platform's volume, reduced servo drive platform's weight and total return difference, improved servo drive platform's precision and transmission efficiency.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is an overall structure diagram of the present invention;
fig. 3 is a sectional view of the pitch transmission unit of the present invention;
fig. 4 is a sectional view of the azimuth driving unit of the present invention.
Detailed Description
Examples of the present invention are described in further detail below with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses a servo transmission platform, including every single move drive unit 1, position drive unit 2, base 3, antenna mounting bracket 4, antenna 5 and coaxial rotary joint 6. The pitching transmission unit 1 and the azimuth transmission unit 2 are installed on the base 3, the antenna mounting rack 4 and the antenna 5 are connected and then installed on the pitching transmission unit 1, and the coaxial rotary joints 6 are respectively installed on the pitching transmission unit 1 and the azimuth transmission unit 2. When the servo transmission platform receives a control instruction and a data signal, the pitching transmission unit 1 and the azimuth transmission unit 2 drive the radar antenna to carry out airspace scanning, so that a target is captured and tracked, and meanwhile, the pitching transmission unit 1 and the azimuth transmission unit 2 feed back angle and speed data to the inside of the base 3 in real time to be compared and corrected with an expected value, so that the servo transmission platform forms a closed-loop control system.
With reference to fig. 2, the structural details of this example are described as follows:
the pitch transmission unit 1 comprises a pitch motor 11, a pitch reducer 12, a pitch reduction gear pair 13, a pitch angle potentiometer 14 and a pitch component 15; the pitch reduction gear pair 13 is a primary gear transmission, the pitch reducer 12 and the pitch reduction gear pair 13 together form a reduction mechanism of the pitch transmission unit 1, the pitch motor 11 and the pitch reducer 12 are mounted on a pitch member 15 in a clearance fit manner, and a rotating shaft of the pitch member 15 is concentrically connected with a rotating shaft of the pitch angle potentiometer 14. After the pitching motor 11 is started, the pitching motor drives the radar antenna to move in the pitching dimension according to a given movement rule through the pitching reducer 12 and the pitching reduction gear pair 13, and the pitching angle potentiometer 14 monitors the pitching dimension movement angle and speed in real time and feeds back the pitching angle and speed information to the inside of the base 3 to be compared with an expected value and correct the information.
The azimuth transmission unit 2 comprises an azimuth motor 21, an azimuth reducer 22, an azimuth reduction gear pair 23, an azimuth angle potentiometer 24, an azimuth component 25, a left fork arm 26, a right fork arm 27 and a driving box 28; the azimuth reduction gear pair 23 is a one-stage gear transmission, the azimuth reducer 22 and the azimuth reduction gear pair 23 together form a reduction mechanism of the azimuth transmission unit 2, the azimuth motor 21 and the azimuth reducer 22 are mounted on a drive box 28 in a clearance fit manner, a rotation shaft of the azimuth member 25 is concentrically connected with a rotation shaft of the azimuth angle potentiometer 24, and the left yoke 26, the right yoke 27 and the drive box 28 are respectively mounted on the base 3. After the azimuth motor 21 is started, the radar antenna is driven to move in the azimuth dimension through the azimuth reducer 22 and the azimuth reduction gear pair 23 according to a given movement rule, and the azimuth angle potentiometer 24 monitors the azimuth dimension movement angle and speed in real time and feeds azimuth angle and speed information back to the inside of the base 3 to be compared with an expected value and correct the expected value.
The base 3 is formed by integrally machining aluminum alloy, the section of the base is similar to an octagon, the thinnest part of the wall thickness is 3mm, the thickest part is 4mm, and the base is used as a support of the whole servo transmission platform.
The antenna mounting frame 4 is formed by processing carbon fibers, and the carbon fibers have the characteristic of small specific gravity, so that the strength and the rigidity of the carbon fibers meet the requirements, and the weight of the servo transmission platform is reduced.
The antenna 5 adopts a microstrip antenna, and has the advantages of light weight and low cost, so that the weight and the processing cost of the antenna are reduced, and the processing period and the processing precision of the antenna are reduced.
The coaxial rotary joint 6 is respectively arranged on the pitching transmission unit 1 and the azimuth transmission unit 2 and is used for connecting the static semi-rigid coaxial cable and the dynamic semi-rigid coaxial cable in series, so that the problems of cross interference and abrasion of the cables in the rotation process of the platform are solved.
Referring to fig. 3, the pitch member 15 in the pitch transmission unit 1 includes a pitch bracket 151, a first azimuth bracket 152, a first potentiometer mount 153, a semicircular ring 154, a first angular contact bearing 155, a first baffle 156, a first adjustment pad 157, and a first end cover 158; the first angular contact bearing 155 has inner rings thereof installed on the left and right rotation shafts of the pitch bracket 151 in an interference fit manner and connected to the first azimuth bracket 152 through a mounting hole of the semicircular ring 154, a lower half portion of an outer ring thereof is installed at a corresponding semicircular position of the first azimuth bracket 152, an upper half portion thereof is installed in a fit manner with the semicircular ring 154 to limit the outer ring of the first angular contact bearing 155 by shoulder contact, the first baffle 156 is installed on the inner ring of the first angular contact bearing 155 to prevent the inner ring of the first angular contact bearing 155 from axially shifting, the first adjustment shim 157 is filled between the first baffle 156 and the inner ring of the first angular contact bearing 155, the first end cap 158 is installed on the pitch bracket 151, and the first potentiometer mounting member 153 is installed on the first end cap 158.
The pitch reduction gear pair 13 including a first pitch reduction gear 131 and a second pitch reduction gear 132; the first pitch reduction gear 131 is installed with a clearance fit with the rotation shaft of the pitch bracket 151 and fixed to the first orientation bracket 152 by a semicircular ring 154, and the second pitch reduction gear 132 is tightly fitted and connected to the output shaft of the pitch reducer 12.
Referring to fig. 4, the azimuth member 25 in the azimuth driving unit 2 includes a second end cap 251, a second angular contact bearing 252, a second shutter 253, a second adjustment pad 254, a second potentiometer mount 255, and a second azimuth bracket 256; the second end caps 251 are mounted on the left yoke 26 and the right yoke 27, respectively, and the inner rings of the second angular contact bearings 252 are mounted on the left and right rotary shafts of the second azimuth bracket 256. The outer ring is arranged in corresponding holes of the left fork arm 26 and the right fork arm 27 in an interference fit mode so as to limit the outer ring of the second angular contact bearing 252 through shaft shoulder contact, and the second baffle 253 is arranged on the inner ring of the second angular contact bearing 252 so as to prevent the inner ring of the second angular contact bearing 252 from axially moving; the second adjustment shim 254 is filled between the second shutter 253 and the inner race of the second angular contact bearing 252, and the second potentiometer mounting member 255 is mounted on the second end cap 251.
The azimuth reduction gear pair 23 includes a first azimuth reduction gear 231 and a second azimuth reduction gear 232; the first azimuth reduction gear 231 is positioned and then mounted on the second azimuth support 256, the centers of the rotation axes of the two are coincident, and the second azimuth reduction gear 232 is tightly fitted and connected with the output shaft of the azimuth reducer 22.
The above description is only a specific example of the present invention, and does not constitute any limitation to the present invention, and it is obvious to those skilled in the art that various modifications and changes in form and detail may be made without departing from the principle and structure of the present invention after understanding the content and principle of the present invention, but such modifications and changes based on the idea of the present invention are still within the scope of the claims of the present invention.
Claims (9)
1. A coaxial feed airborne weather radar servo drive platform, comprising: the device comprises a pitching transmission unit (1), an azimuth transmission unit (2), a base (3), an antenna mounting rack (4), an antenna (5) and a coaxial rotary joint (6); this every single move transmission unit (1) and position transmission unit (2) are installed on base (3), install on every single move transmission unit (1) after this antenna mounting bracket (4) and antenna (5) are connected, and this coaxial rotary joint (6) is installed respectively on every single move transmission unit (1) and position transmission unit (2), its characterized in that:
the antenna (5) is a microstrip antenna;
electric signals between the antenna (5) and the inside of the base (3) are transmitted through a semi-rigid coaxial cable, coaxial rotary joints (6) are installed on the pitching transmission unit (1) and the azimuth transmission unit (2), and the static semi-rigid coaxial cable and the dynamic semi-rigid coaxial cable are connected in series through the coaxial rotary joints (6).
2. Platform according to claim 1, characterized in that the pitch transmission unit (1) comprises a pitch motor (11), a pitch reducer (12), a pitch reduction gear pair (13), a pitch angle potentiometer (14) and a pitch member (15); the pitch reduction gear pair (13) is in primary gear transmission, the pitch reducer (12) and the pitch reduction gear pair (13) jointly form a reduction mechanism of the pitch transmission unit (1), the pitch motor (11) and the pitch reducer (12) are installed on a pitch component (15) in a clearance fit mode, and a rotating shaft of the pitch component (15) is concentrically connected with a rotating shaft of the pitch angle potentiometer (14).
3. Platform according to claim 1, characterized in that the azimuth drive unit (2) comprises an azimuth motor (21), an azimuth reducer (22), an azimuth reduction gear pair (23), an azimuth angle potentiometer (24), an azimuth member (25), a left yoke (26), a right yoke (27) and a drive box (28); the azimuth reduction gear pair (23) is in primary gear transmission, the azimuth reducer (22) and the azimuth reduction gear pair (23) jointly form a reduction mechanism of the azimuth transmission unit (2), the azimuth motor (21) and the azimuth reducer (22) are installed on a driving box (28) in a clearance fit mode, a rotating shaft of an azimuth component (25) is concentrically connected with a rotating shaft of an azimuth angle potentiometer (24), and the left fork arm (26), the right fork arm (27) and the driving box (28) are installed on the base (3) respectively.
4. The platform of claim 2, wherein the pitch member (15) comprises a pitch bracket (151), a first azimuth bracket (152), a first potentiometer mount (153), a half-ring (154), a first angular contact bearing (155), a first baffle (156), a first adjustment pad (157), and a first end cap (158); the first corner contact bearing (155) is arranged on the rotating shafts at the left end and the right end of the pitching support (151) in an interference fit way, and is connected with the first azimuth bracket (152) through the mounting hole of the semicircular ring (154), the lower half part of the outer ring of the bearing is arranged at the corresponding semicircle position of the first orientation bracket (152), the upper half part is matched and arranged with the semicircle ring (154) to limit the outer ring of the first angular contact bearing (155) through the contact of the shaft shoulder, the first baffle plate (156) is mounted on the inner race of the first angular contact bearing (155) to prevent the inner race of the first angular contact bearing (155) from axially floating, the first adjustment shim (157) is filled between the first baffle plate (156) and the inner ring of the first angular contact bearing (155), the first end cap (158) is mounted to the pitch support (151) and the first potentiometer mounting member (153) is mounted to the first end cap (158).
5. Platform according to claim 2 or 4, wherein said pitch reduction gear pair (13) comprises a first pitch reduction gear (131) and a second pitch reduction gear (132); the first pitching reducing gear (131) is in clearance fit with a rotating shaft of the pitching support (151) and is fixed on the first orientation support (152) through a semicircular ring (154), and the second pitching reducing gear (132) is in tight fit connection with an output shaft of the pitching reducer (12).
6. The platform of claim 3, wherein the orientation member (25) comprises a second end cap (251), a second angular contact bearing (252), a second stop (253), a second adjustment pad (254), a second potentiometer mount (255), and a second orientation bracket (256); the second end covers (251) are respectively installed on the left fork arm (26) and the right fork arm (27), the inner ring of the second angular contact bearing (252) is installed on rotating shafts at the left end and the right end of the second azimuth bracket (256), the outer ring is installed in corresponding holes of the left fork arm (26) and the right fork arm (27) in an interference fit mode so as to limit the outer ring of the second angular contact bearing (252) through shaft shoulder contact, and the second baffle plate (253) is installed on the inner ring of the second angular contact bearing (252) so as to prevent the inner ring of the second angular contact bearing (252) from axially jumping; the second adjusting shim (254) is filled between the second baffle (253) and the inner ring of the second angular contact bearing (252), and the second potentiometer mounting piece (255) is mounted on the second end cover (251).
7. A platform according to claim 3 or 6, wherein the azimuth reduction gear pair (23) comprises a first azimuth reduction gear (231) and a second azimuth reduction gear (232); the first azimuth reducing gear (231) is positioned and then installed on the second azimuth support (256), the centers of the rotating shafts of the first azimuth reducing gear and the second azimuth reducing gear are overlapped, and the second azimuth reducing gear (232) is in tight fit connection with the output shaft of the azimuth reducer (22).
8. Platform according to claim 1, characterized in that the base (3) is machined integrally from an aluminium alloy, has a cross section similar to an octagon, has a wall thickness of 3mm at the thinnest point and 4mm at the thickest point, and is used as a support for the entire servo transmission platform.
9. Platform according to claim 1, characterized in that the antenna mount (4) is machined from carbon fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022948614.6U CN214122457U (en) | 2020-12-08 | 2020-12-08 | Servo transmission platform of coaxial feed airborne weather radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022948614.6U CN214122457U (en) | 2020-12-08 | 2020-12-08 | Servo transmission platform of coaxial feed airborne weather radar |
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| Publication Number | Publication Date |
|---|---|
| CN214122457U true CN214122457U (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022948614.6U Active CN214122457U (en) | 2020-12-08 | 2020-12-08 | Servo transmission platform of coaxial feed airborne weather radar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116193553A (en) * | 2023-04-26 | 2023-05-30 | 武汉能钠智能装备技术股份有限公司四川省成都市分公司 | Mobile low-power-consumption control monitoring system and method |
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2020
- 2020-12-08 CN CN202022948614.6U patent/CN214122457U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116193553A (en) * | 2023-04-26 | 2023-05-30 | 武汉能钠智能装备技术股份有限公司四川省成都市分公司 | Mobile low-power-consumption control monitoring system and method |
| CN116193553B (en) * | 2023-04-26 | 2023-08-22 | 武汉能钠智能装备技术股份有限公司四川省成都市分公司 | Mobile low-power-consumption control monitoring system and method |
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