CN111262026A - Light-weight integrated X-band meteorological radar structure - Google Patents
Light-weight integrated X-band meteorological radar structure Download PDFInfo
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- CN111262026A CN111262026A CN202010218762.4A CN202010218762A CN111262026A CN 111262026 A CN111262026 A CN 111262026A CN 202010218762 A CN202010218762 A CN 202010218762A CN 111262026 A CN111262026 A CN 111262026A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/95—Radar or analogous systems specially adapted for specific applications for meteorological use
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
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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
Abstract
The invention discloses a light-weight integrated X-band meteorological radar structure which comprises a base, a cover body, an orientation adjusting mechanism, a pitching adjusting mechanism and a radar antenna, wherein the base is provided with a base frame; the cover body comprises a heat dissipation bottom cover and an antenna cover; the azimuth adjusting mechanism comprises a rotating platform, an azimuth servo motor and an azimuth encoder; the azimuth servo motor is used for driving the rotating platform to rotate in the circumferential direction for 360 degrees; the azimuth encoder is used for detecting a rotating azimuth; the pitching adjusting mechanism comprises a rotary table support, a pitching platform, a rotating shaft, a pitching servo motor and a pitching encoder; the rotating support is arranged at the top of the rotating platform, the rotating shaft rotates and is arranged at the top of the rotating platform support in a horizontal state, and the pitching platform is sleeved in the middle of the rotating shaft; the radar antenna is arranged on the pitching platform; the pitching servo motor is used for driving the rotating shaft to rotate; the pitching encoder is arranged on the rotating support and used for detecting the rotating angle of the rotating shaft. The invention has strong environmental adaptability, light weight, low power consumption, easy maintenance and various operation modes.
Description
Technical Field
The invention relates to an X-band meteorological radar, in particular to a light-weight integrated X-band meteorological radar structure.
Background
The X-band meteorological radar has unique functions in small-scale strong convection meteorological monitoring aspects such as small-area precipitation, hailstone cloud, tornado, cyclone and the like by the specific detection capability and working wavelength characteristics of the X-band meteorological radar on a small-scale meteorological system. The method is mainly used for artificially influencing weather, preventing and reducing weather disasters, ensuring emergency weather, performing scientific experiments and the like.
However, the structural design of the traditional domestic X-band meteorological radar is single, and the following defects exist:
1. the revolving stage is complicated, and weight is heavier, and the consumption is great: in the traditional X-waveband weather radar structure, the thickness of a metal casting is increased by considering environmental factors such as wind resistance, water resistance and the like, so that the weight of the whole machine is increased, the servo driving power is increased, and the power consumption of the whole machine is increased.
2. The maintenance is complicated: when the traditional X-band meteorological radar is maintained, on one hand, a fault part can be replaced only by sequentially disassembling the fault part from outside to inside, and on the other hand, the modularization degree is not high, and the on-site device level is required to be subjected to troubleshooting and testing when the fault occurs.
3. The operation mode is single: the traditional X-band meteorological radar operation mode is limited by application scenes and structural design, and can only realize rotation of a pitch angle of 0-90 degrees. Because the structure is heavier, the gravity center is deviated, and the gear is out of step due to reverse impact on the pitching gear when the lifting jack is overturned, so that an angle error is brought to the servo motor.
The radar can quickly turn to the opposite direction by over-top scanning, the detection time is shortened, the early warning and forecasting time for the rapidly-changed disastrous weather is prolonged, in addition, on the aeronautical weather, the forecasting and early warning are required to be carried out on a runway and two side extension lines, and therefore the traditional X-band meteorological radar cannot meet the fields of aeronautical weather, scientific research and the like. In addition, with the continuous development of the X-band meteorological radar technology and the increasingly complex application scene, the requirement of unattended function is more and more urgent, the requirement of the X-band meteorological radar on environmental adaptability and power consumption is gradually increased, and the X-band meteorological radar structure is subjected to higher requirements.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a lightweight integrated X-band meteorological radar structure, which has strong environmental adaptability, light weight, low power consumption, easy maintenance and various operation modes, in order to overcome the shortcomings of the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that:
a light-weight integrated X-band meteorological radar structure comprises a base, a cover body, an orientation adjusting mechanism, a pitching adjusting mechanism and a radar antenna.
The cover body includes heat dissipation undercover and antenna house. The heat dissipation bottom cover is coaxially sleeved on the periphery of the base, the antenna housing is detachably connected with the heat dissipation bottom cover in a sealing mode, and a sealed cavity is formed inside the antenna housing. The direction adjusting mechanism, the pitching adjusting mechanism and the radar antenna are all located in the sealed cavity.
The azimuth adjusting mechanism comprises a rotating platform, an azimuth servo motor and an azimuth encoder. The rotating platform is coaxially and rotatably arranged at the top of the base, and the azimuth servo motor is used for driving the rotating platform to rotate in the circumferential direction of 360 degrees. The azimuth encoder is used for detecting the rotating azimuth of the rotating platform or the radar antenna.
The pitching adjusting mechanism comprises a turntable support, a pitching platform, a rotating shaft, a pitching servo motor and a pitching encoder.
The rotating support is arranged at the top of the rotating platform, the rotating shaft rotates and is arranged at the top of the rotary table support in a horizontal state, and the pitching platform is sleeved in the middle of the rotating shaft and can rotate along with the rotating shaft. The radar antenna is mounted on the pitching platform.
The pitching servo motor is arranged on the rotating support and used for driving the rotating shaft to rotate. The pitching encoder is arranged on the rotating support and used for detecting the rotating angle of the rotating shaft.
The pitching platform comprises a pitching support and an antenna feeder mounting back plate. The pitching support is provided with a plurality of lightening holes and comprises a bottom plate and two vertical side plates which are parallel to each other, the antenna feeder mounting back plate is connected and mounted between the two vertical side plates, and the radar antenna is mounted on the antenna feeder mounting back plate.
The pitch support also includes a baffle. Wherein, install signal processing unit on the bottom plate, install solid-state TR unit on the baffle, have the wind channel that dispels the heat between solid-state TR unit and the signal processing unit.
The turntable support comprises two vertical plates which are symmetrically arranged on the outer edge of the top of the rotating platform and are parallel to each other. Each vertical plate is provided with a lightening hole.
The pitch encoder includes a pitch encoder stator and a pitch encoder rotor. One end of a rotating shaft in the pitching adjusting mechanism penetrates out of one of the vertical plates and is connected with a pitching servo motor through a pitching servo coupler and a pitching speed reducer respectively. The other end of pivot is worn out the back from the every single move support, is connected with every single move pivot and every single move encoder rotor respectively in proper order, and every single move encoder stator suit is in every single move encoder rotor periphery to be connected with another vertical board in the revolving stage support. The pitching rotating shaft or the pitching encoder rotor is rotatably connected with the corresponding vertical plate.
The antenna housing is made of a hollow composite material, the wave transmittance of the hollow composite material to an X wave band is not lower than 95%, 10-level stable wind can be resisted to the maximum extent, the power transmission loss is not more than 0.2dB, the wave beam offset is not more than 0.02 degrees, and the wave beam broadening is not more than 0.03 degrees.
The surface of the antenna housing is coated with a white coating and a hydrophobic layer.
The top of the rotating platform is arranged on the top of the base through a rotary support. The azimuth servo motor is connected with an azimuth speed reducer, the azimuth speed reducer is installed in the rotating platform, a pinion is installed at the output end of the bottom of the azimuth speed reducer, and the rotary support is provided with external teeth meshed with the pinion.
The azimuth adjustment mechanism further includes a collector ring including a collector ring stator and a collector ring rotor, and a central shaft. The position encoder includes a position encoder stator and a position encoder rotor. The bottom of center pin passes and rotates the platform after the installation to be fixed on the heat dissipation bottom cover, and the collecting ring stator suit is fixed at the center pin middle part, and the collecting ring rotor suit is in collecting ring stator periphery. The position encoder stator is sleeved and fixed at the top of the central shaft, and the position encoder rotor is sleeved and fixed on the periphery of the position encoder stator. The azimuth encoder rotor and the collector ring rotor are connected with the rotating platform through a dynamic and static conversion support.
The invention has the following beneficial effects:
1. the antenna housing can effectively protect the X-band meteorological radar from being radiated by solar ultraviolet rays, and avoids antenna deformation and antenna system electrical parameters from being deteriorated, so that the radar is not affected by wind, rain, ice, snow, salt fog, acid rain and the like, the all-weather work of the radar system is ensured, and the service life of the radar system is prolonged.
2. Because the form of external antenna house has been adopted, so each module of radar need not to consider sealed and waterproof problem, does not just promptly reuse thick and heavy sealed metal cavity to protect, but the use amount of greatly reduced metal parts, all supports or base homoenergetic adopt the fretwork mode, alleviate equipment mass by a wide margin, make the radar satisfy light-weighted operation requirement. Furthermore, the light-weight integrated structural design of the radar reduces the usage amount of metal parts of the cavity turntable, so that the driving power of the servo system to the antenna subsystem, the TR subsystem, the signal processing subsystem and the like can be reduced, the servo system works uniformly and stably, the aiming precision of the radar is improved, the power consumption of the whole radar is reduced, the cost and the technical difficulty of a power supply system in an unattended radar system are reduced, and the system is safe, reliable, energy-saving and environment-friendly;
3. the radar modularization integration degree is higher, can realize disassembling fast, easily makes convenient the maintenance.
4. The pitching servo motor in the pitching adjusting mechanism can drive the pitching support to perform pitching motion at an angle of-2-182 degrees, so that the detection range of the radar antenna can be enlarged, the radar can realize overhead scanning, and certain scientific research requirements are met.
5. The azimuth adjusting mechanism is arranged, the azimuth servo motor can drive the rotating platform to do azimuth motion, the angle is 0-360 degrees, the azimuth rotating speed can reach 10RPM (revolutions per minute), namely the radar azimuth rotating speed is high, the radar has unique advantages for detecting and tracking medium and small-scale rapidly-variable disastrous weather, and the high social value is generated.
Drawings
FIG. 1 shows a front view of a lightweight integrated X-band meteorological radar structure of the present invention.
FIG. 2 shows a side view of a lightweight integrated X-band meteorological radar structure of the present invention.
Fig. 3 shows an enlarged schematic view of the orientation adjustment mechanism of fig. 1.
Fig. 4 shows a perspective view of a lightweight integrated X-band meteorological radar structure (without a radome) of the present invention.
FIG. 5 is a schematic diagram showing the position of the center of gravity during pitching adjustment of a prior art X-band weather radar.
FIG. 6 is a schematic diagram showing the center of gravity of a lightweight integrated X-band weather radar structure according to the present invention
Among them are: 1. a base; 2. a heat dissipation bottom cover; 3. a rotary support; 4. a pinion gear; 5. rotating the platform; 6. an azimuth reducer; 7. an azimuth servo motor; 8. an antenna cover; 9. a turntable support; 10. a pitch encoder; 101. a pitch encoder stator; 102. a pitch encoder rotor; 11. a pitch encoder coupling; 12. a pitching rotation shaft; 13. an antenna feeder mounting back plate; 14. a rotating shaft; 15. a pitch servo coupling; 16. a pitching speed reducer; 17. a pitch servo motor; 18. a position encoder; 181. an azimuth encoder stator; 182. an azimuth encoder rotor; 19. an azimuth coupler; 20. a collector ring; 201. a collector ring rotor; 202. a collector ring stator; 21. a heat sink; 22. a central shaft; 23. a radar antenna; 24. a pitch support; 25. a solid state TR cell; 26. a signal processing unit; an AC/DC power supply; 28. a servo driver; 29. a dynamic and static conversion bracket.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
In the description of the present invention, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
As shown in fig. 1 to 4, a lightweight integrated X-band meteorological radar structure includes a base 1, a cover, an azimuth adjusting mechanism, a pitch adjusting mechanism, and a radar antenna 23.
The cover body comprises a heat dissipation bottom cover 2 and an antenna cover 8.
The heat dissipation bottom cover is coaxially sleeved on the periphery of the base, and preferably adopts an aluminum alloy frame, so that the heat dissipation area can be increased. The heat dissipation device 21 is arranged on the heat dissipation bottom cover, the heat dissipation device 21 is preferably a dustproof fan or a TEC heat exchanger and the like, so that complete isolation of the internal environment and the external environment can be guaranteed, the heat dissipation device can be used in places such as seasides with relatively severe environments, the temperature difference balance effect can be achieved by continuously exchanging the internal air and the external air, and the heat dissipation device can be used in inland regions with relatively good external environments.
The antenna housing is connected with the heat dissipation bottom cover in a sealing and detachable mode, preferably connected through the spring buckle, a sealing cavity is formed, and the antenna housing can be detached quickly and maintained conveniently. The direction adjusting mechanism, the pitching adjusting mechanism and the radar antenna are all located in the sealed cavity. The module mechanisms are not arranged in a single metal sealing cavity, but are arranged in the housing, and after the antenna housing is removed, the module mechanisms are directly and completely exposed in a visual visible range, so that the maintenance of the product is facilitated.
The antenna housing is made of hollow composite materials, the hollow composite materials are preferably made of hollow fabrics and resin, the hollow fabrics are woven by high-performance alkali-free glass fibers, the basis of the sandwich structure is that warp and weft yarns of surface layers and two continuous surface layers are formed to form Z-direction fibers of a core part, the space shape of the Z-direction fibers is 8-shaped, good mechanical stability and surface smoothness after composite forming are ensured, the Z-direction fibers automatically infiltrate the resin under the capillary effect, the fabrics are automatically formed to the designed height, the integral hollow sandwich structure of the composite materials overcomes the defects that traditional sandwich composite materials such as honeycombs, foam core materials and the like are easy to layer and poor in impact resistance, and has high specific strength, rigidity, toughness, corrosion resistance possess reliable adverse circumstances resistance can form good confined space in order to protect the radar to avoid adverse circumstances influence. The design of the antenna cover body is smooth in appearance, the skin has no phenomena of obvious concave-convex, patching, burrs and the like, and the surface of the antenna cover is coated with a white coating and a hydrophobic layer, so that the protection grade has IP65 and can withstand long-term rain and seawater flushing. The hollow composite material has excellent wave-transmitting electrical property and structural mechanical property, the wave-transmitting rate of the hollow composite material to an X wave band is not lower than 95 percent, 10-level stable wind can be maximally resisted, the power transmission loss is not more than 0.2dB, the wave beam deviation is not more than 0.02 degrees, and the wave beam broadening is not more than 0.03 degrees. The antenna housing is sealed to prevent water, salt mist and mould, and the working temperature range is-50 ℃ to 70 ℃; the humidity range is 95% +/-5%, the requirement of GJB150A-2009 is met, the surface of the glass substrate is coated with a hydrophobic layer material, and the hydrophobicity is not lower than 120 degrees, so that the serious attenuation of X-band electromagnetic waves caused by a rainfilm formed on the surface of the glass substrate during rainfall is avoided.
When the radar works, the air in the cover body is cooled by the heat dissipation device 21 at the heat dissipation bottom, and the radar antenna 23 rotates in the inner space, so that the temperature difference of the inner air is balanced.
The azimuth adjusting mechanism includes a rotary stage 5, an azimuth servo motor 7, a bus ring 20, a center shaft 22, and an azimuth encoder 18.
The rotating platform is coaxially and rotatably arranged at the top of the base, and the top of the rotating platform is preferably arranged at the top of the base through a rotary support 3. That is, the inner ring 302 of the rotary support is sleeved on the top of the base, and the outer ring of the rotary support is provided with outer teeth 301.
Further, an AC/DC power supply 27 and a servo driver 28 are preferably provided on the rotary platform. The AC/DC power supply provides an alternating current or direct current power supply for the whole radar structure, and the servo driver is connected with the azimuth servo motor and the pitching servo motor respectively.
The azimuth servo motor is used for driving the rotating platform to rotate in the circumferential direction of 360 degrees. The azimuth servo motor is preferably connected with an azimuth reducer 6, the azimuth reducer is installed in the rotating platform, a pinion 4 is installed at the bottom output end of the azimuth reducer, and the external teeth of the rotary support are meshed with the pinion.
The bottom end of the central shaft penetrates through the rotating platform and then is fixedly arranged on the heat dissipation bottom cover.
The azimuth encoder is used for detecting the rotational azimuth of the rotating platform or the radar antenna, and comprises an azimuth encoder stator 182 and an azimuth encoder rotor 181. The position encoder stator is sleeved and fixed at the top of the central shaft, and the position encoder rotor is sleeved and fixed on the periphery of the position encoder stator.
The slip ring includes a slip ring stator 202 and a slip ring rotor 201. The collector ring stator is sleeved and fixed in the middle of the central shaft, and the collector ring rotor is sleeved and fixed on the periphery of the collector ring stator.
The azimuth encoder rotor and the collector ring rotor are preferably connected to the rotating platform via a static-dynamic transfer frame 29.
The azimuth adjusting mechanism is arranged, the azimuth servo motor can drive the rotating platform to do azimuth motion, the angle is 0-360 degrees, the azimuth rotating speed can reach 10RPM (revolutions per minute), namely the radar azimuth rotating speed is high, the radar has unique advantages for detecting and tracking medium and small-scale rapidly-variable disastrous weather, and the high social value is generated.
The pitch adjustment mechanism comprises a turntable support 9, a pitch platform, a rotating shaft 14, a pitch servo motor 17 and a pitch encoder 10.
The rotating support is arranged at the top of the rotating platform, and preferably comprises two parallel vertical plates symmetrically arranged on the outer edge of the top of the rotating platform. Each vertical plate is preferably provided with a lightening hole, namely, a hollow-out arrangement.
The rotating shaft rotates and is installed at the top of the rotary table support in a horizontal state, and the pitching platform is sleeved in the middle of the rotating shaft and can rotate along with the rotating shaft. The radar antenna is mounted on the pitching platform.
Further, the pitch platform comprises a pitch bracket 24 and an antenna feeder mounting back plate 13. The pitching support is provided with a plurality of lightening holes and comprises a bottom plate, a partition plate and two vertical side plates which are parallel to each other, the antenna feeder mounting back plate is connected and mounted between the two vertical side plates, and the radar antenna is mounted on the antenna feeder mounting back plate.
The signal processing unit 26 is installed on the bottom plate, the solid-state TR unit 25 is installed on the partition plate, the solid-state TR unit and the signal processing unit are both in the prior art, and are not described herein any more, and a heat dissipation air duct is arranged between the solid-state TR unit and the signal processing unit.
The pitching servo motor is arranged on the rotating support and used for driving the rotating shaft to rotate. That is, one end of the rotating shaft penetrates out of one of the vertical plates and is connected with the pitching servo motor through the pitching servo coupling 15 and the pitching speed reducer 16 respectively.
The pitching encoder is arranged on the rotating support and used for detecting the rotating angle of the rotating shaft.
The pitch encoder comprises a pitch encoder stator 101 and a pitch encoder rotor 102.
The other end of the rotating shaft in the pitching adjusting mechanism penetrates out of the pitching support and then is sequentially connected with the pitching rotating shaft 12, the pitching encoding coupler 11 and the pitching encoder rotor respectively, and the pitching encoder stator is sleeved on the periphery of the pitching encoder rotor and connected with the other vertical plate in the rotary table support. The pitching rotating shaft or the pitching encoder rotor is rotatably connected with the corresponding vertical plate.
According to the invention, because the external antenna housing is adopted, the sealing and waterproof problems of each module of the radar are not required to be considered, namely, a thick and heavy sealed metal cavity is not required to be used for protection, the using amount of metal parts can be greatly reduced, all supports (including a turntable support, a pitching support, a dynamic and static conversion support and the like) and a base can be hollowed out, the equipment quality is greatly reduced, and the radar meets the light using requirement.
The pitching servo motor in the pitching adjusting mechanism can drive the pitching support to perform pitching motion at an angle of-2-182 degrees, so that the detection range of the radar antenna can be enlarged, the radar can realize overhead scanning, and certain scientific research requirements are met.
Traditional radar is because the antenna is lighter, as shown in fig. 5, every single move cavity adds inside transceiver weight and is heavier, can't guarantee the focus when every single move rotates on the axis of rotation, when crossing the top and sweeping, the focus can be controlled and shifted, and outside wind-load is constantly changing to antenna wind-load in addition, causes the value of every single move encoder transmission to fluctuate, and must select for use great holding torque motor. According to the invention, the pitching cavity is simplified to be on-board open, and the left and right balance of the weight of the pitching rotating shaft is kept by adjusting the positions of modules such as a transceiver set and the like in the pitching cavity. The gravity center is always kept on the rotating shaft, as shown in fig. 6, a motor with small torque can be selected, the power consumption of the whole machine is reduced, and the smoothness and the flexibility during the overhead process are also ensured.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the embodiments, and various equivalent modifications can be made within the technical spirit of the present invention, and the scope of the present invention is also within the scope of the present invention.
Claims (9)
1. The utility model provides a light weight type integration X wave band meteorological radar structure which characterized in that: the device comprises a base, a cover body, an azimuth adjusting mechanism, a pitching adjusting mechanism and a radar antenna;
the cover body comprises a heat dissipation bottom cover and an antenna cover; the radiating bottom cover is coaxially sleeved on the periphery of the base, the antenna cover is detachably connected with the radiating bottom cover in a sealing way, and a sealed cavity is formed inside the antenna cover; the azimuth adjusting mechanism, the pitching adjusting mechanism and the radar antenna are all positioned in the sealed cavity;
the azimuth adjusting mechanism comprises a rotating platform, an azimuth servo motor and an azimuth encoder; the rotating platform is coaxial and is rotatably arranged at the top of the base, and the azimuth servo motor is used for driving the rotating platform to circumferentially rotate for 360 degrees; the azimuth encoder is used for detecting the rotating azimuth of the rotating platform or the radar antenna;
the pitching adjusting mechanism comprises a rotary table support, a pitching platform, a rotating shaft, a pitching servo motor and a pitching encoder;
the rotating support is arranged at the top of the rotating platform, the rotating shaft rotates and is arranged at the top of the rotating platform support in a horizontal state, and the pitching platform is sleeved in the middle of the rotating shaft and can rotate along with the rotating shaft; the radar antenna is arranged on the pitching platform;
the pitching servo motor is arranged on the rotating bracket and used for driving the rotating shaft to rotate; the pitching encoder is arranged on the rotating support and used for detecting the rotating angle of the rotating shaft.
2. A lightweight, integral X-band meteorological radar structure according to claim 1, wherein: the pitching platform comprises a pitching support and an antenna feeder mounting back plate; the pitching support is provided with a plurality of lightening holes and comprises a bottom plate and two vertical side plates which are parallel to each other, the antenna feeder mounting back plate is connected and mounted between the two vertical side plates, and the radar antenna is mounted on the antenna feeder mounting back plate.
3. A lightweight, integral X-band meteorological radar structure according to claim 2, wherein: the pitch support further comprises a baffle plate; wherein, install signal processing unit on the bottom plate, install solid-state TR unit on the baffle, have the wind channel that dispels the heat between solid-state TR unit and the signal processing unit.
4. A lightweight, integral X-band meteorological radar structure according to claim 1, wherein: the rotary table support comprises two vertical plates which are symmetrically arranged on the outer edge of the top of the rotary platform and are parallel to each other; each vertical plate is provided with a lightening hole.
5. A lightweight, integrated X-band meteorological radar structure according to claim 4, wherein: the pitch encoder comprises a pitch encoder stator and a pitch encoder rotor; one end of a rotating shaft in the pitching adjusting mechanism penetrates out of one of the vertical plates and is connected with a pitching servo motor through a pitching servo coupler and a pitching speed reducer respectively; the other end of the rotating shaft penetrates out of the pitching support and then is sequentially connected with the pitching rotating shaft and the pitching encoder rotor respectively, and the pitching encoder stator is sleeved on the periphery of the pitching encoder rotor and is connected with the other vertical plate in the rotary table support; the pitching rotating shaft or the pitching encoder rotor is rotatably connected with the corresponding vertical plate.
6. A lightweight, integral X-band meteorological radar structure according to claim 1, wherein: the antenna housing is made of a hollow composite material, the wave transmittance of the hollow composite material to an X wave band is not lower than 95%, 10-level stable wind can be resisted to the maximum extent, the power transmission loss is not more than 0.2dB, the wave beam offset is not more than 0.02 degrees, and the wave beam broadening is not more than 0.03 degrees.
7.A lightweight, integrated X-band meteorological radar structure according to claim 6, wherein: the surface of the antenna housing is coated with a white coating and a hydrophobic layer.
8. A lightweight, integral X-band meteorological radar structure according to claim 1, wherein: the top of the rotating platform is arranged on the top of the base through a rotary support; the azimuth servo motor is connected with an azimuth speed reducer, the azimuth speed reducer is installed in the rotating platform, a pinion is installed at the output end of the bottom of the azimuth speed reducer, and the rotary support is provided with external teeth meshed with the pinion.
9. A lightweight, integral X-band meteorological radar structure according to claim 8, wherein: the azimuth adjusting mechanism further comprises a collector ring and a central shaft, wherein the collector ring comprises a collector ring stator and a collector ring rotor; the azimuth encoder comprises an azimuth encoder stator and an azimuth encoder rotor; the bottom end of the central shaft penetrates through the rotating platform and then is fixedly arranged on the heat dissipation bottom cover, the collector ring stator is fixedly sleeved in the middle of the central shaft, and the collector ring rotor is sleeved on the periphery of the collector ring stator; the azimuth encoder stator is sleeved and fixed at the top of the central shaft, and the azimuth encoder rotor is sleeved and fixed at the periphery of the azimuth encoder stator; the azimuth encoder rotor and the collector ring rotor are connected with the rotating platform through a dynamic and static conversion support.
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| CN202010218762.4A CN111262026A (en) | 2020-03-25 | 2020-03-25 | Light-weight integrated X-band meteorological radar structure |
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| CN111969292A (en) * | 2020-07-31 | 2020-11-20 | 西安航天精密机电研究所 | Compact radar antenna revolving stage |
| CN112363162A (en) * | 2020-11-02 | 2021-02-12 | 上海无线电设备研究所 | Sea surface radar structure of built-in miniature self priming pump |
| CN112635996A (en) * | 2020-11-06 | 2021-04-09 | 广州辰创科技发展有限公司 | Ka-band antenna pointing control execution method |
| CN112816943A (en) * | 2020-12-24 | 2021-05-18 | 安徽博微长安电子有限公司 | Radar mode control system and method thereof |
| CN113064146A (en) * | 2021-04-23 | 2021-07-02 | 沈阳工程学院 | Protection device for wind power prediction sodar and control method |
| CN113721197A (en) * | 2021-08-30 | 2021-11-30 | 安徽工程大学 | X-band meteorological radar antenna control device based on communication field |
| CN114597625A (en) * | 2022-03-07 | 2022-06-07 | 中国电子科技集团公司第三十八研究所 | Oil lubrication radar rotary table |
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| CN115469313A (en) * | 2022-11-15 | 2022-12-13 | 成都远望探测技术有限公司 | Wave beam control device and method for marine shipborne meteorological radar |
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