CN109273862A - Carbon fiber parabola antenna and its focusing assembly method - Google Patents
Carbon fiber parabola antenna and its focusing assembly method Download PDFInfo
- Publication number
- CN109273862A CN109273862A CN201811013004.8A CN201811013004A CN109273862A CN 109273862 A CN109273862 A CN 109273862A CN 201811013004 A CN201811013004 A CN 201811013004A CN 109273862 A CN109273862 A CN 109273862A
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- Prior art keywords
- subreflector
- reflection surface
- primary reflection
- carbon fiber
- focusing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Moulding By Coating Moulds (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The present invention provides a kind of carbon fiber parabola antenna focusing assembly methods comprising the steps of: rough focusing step: the primary reflection surface, subreflector, feed source bracket and support rod being carried out preliminary focusing using focusing assembly tooling and assembled；Accurate focusing step: primary reflection surface and subreflector are measured using laser tracker, primary reflection surface and subreflector are finely adjusted according to laser tracker measured result；Fastening installation step: fastening assembly is carried out to lower portion to fastener: between primary reflection surface and support rod；Between subreflector and support rod；Between feed source bracket and primary reflection surface.Correspondingly, the present invention also provides a kind of carbon fiber parabola antennas.Design focusing assembly tooling, which is slightly focused, in the present invention can substantially shorten the focusing time, improve production efficiency, precisely focused using laser tracker subsidiary, then significantly reduce the machining accuracy of assembly tooling, reduce the processing cost of tooling.
Description
Technical field
The present invention relates to antenna mounts, and in particular, to a kind of carbon fiber parabola antenna and its assembly method of focusing, it is special
It is not a kind of high-precision carbon fiber parabola antenna and its assembly method of focusing.
Background technique
Compared with metal material, carbon fibre composite (CFC) has that density is low, linear expansion coefficient is minimum, specific strength and ratio
The characteristics such as modulus is high, physical and mechanical properties designability is good, are proved to be the ideal antenna structure material of space industry.
Bireflectance body curve antenna is common antenna structure in satellite antenna, typically by primary reflection surface, secondary reflection
Face, strut and feed battle array composition.When master-subreflector focus is overlapped, which can substantially enhance electromagnetic wave signal and play reason
The reflecting effect thought.But carbon fiber reflecting surface itself, without benchmark, the focusing assembly of master-subreflector antenna is always the heat of research
Where point and difficult point.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of carbon fiber parabola antenna and its focusing dresses
Method of completing the square.
The carbon fiber parabola antenna focusing assembly method provided according to the present invention comprising the steps of:
Rough focusing step: by the primary reflection surface, subreflector, feed source bracket and support rod using focusing assembler
Put into the preliminary focusing assembly of row；
Accurate focusing step: primary reflection surface and subreflector are measured using laser tracker, tracked according to laser
Instrument measured result is finely adjusted primary reflection surface and subreflector；
Fastening installation step: fastening assembly is carried out to lower portion to fastener:
-- between primary reflection surface and support rod；
-- between subreflector and support rod；
-- between feed source bracket and primary reflection surface.
Preferably, the rough focusing step comprises the steps of:
Reflecting surface initial baseline setting steps: benchmark is reserved on primary reflection surface and subreflector；
Tooling setting steps: design focusing assembly tooling is glued in assembly tooling in one or more and reserves benchmark.
Preferably, the reflecting surface initial baseline setting steps comprise the steps of:
Primary reflection surface initial baseline setting steps: setting is fixed in the threaded hole on the carbocyclic ring of center buried on primary reflection surface
Heart pin, using the centring pin as the initial baseline of primary reflection surface；
Subreflector initial baseline setting steps: to subreflector outer ring bottom carbon cloth partial thickening, in part status
Lower machining guarantees the relationship between the circularity and subreflector outer ring and subreflector axis of subreflector outer ring, will thicken
Initial baseline of the subreflector outer ring as subreflector.
Preferably, the tooling setting steps comprise the steps of:
Bottom plate setting steps: setting bottom plate, the bottom plate can borrow 1.95 ° of angles of primary reflection surface backing strip flat；
Secondary antidirection finding plate setting steps: secondary antidirection finding plate is set, is reserved with quasi- block and datum hole on the pair antidirection finding plate.
Preferably, in the rough focusing step, initial focusing to X is to 0.3~5mm of deviation, 0.3~5mm of Y-direction deviation；
In the accurate focusing step, precisely focusing to X is 0.01~1mm to deviation, and Y-direction deviation is 0.01~1mm.
Preferably, precisely in focusing step, using the measured result of laser tracker, subreflector is carried out repeatedly micro-
It adjusts, the accurate focusing between primary reflection surface and subreflector is completed using iterative method and is assembled.
Preferably, it fastens in installation step, described that splicing connection is carried out to fastener, the padding gum in the gap of fastener
Liquid.
It can be realized step in above-mentioned carbon fiber parabola antenna focusing assembly method the present invention also provides a kind of
Carbon fiber parabola antenna includes primary reflection surface, subreflector, feed source bracket and support rod；
It is connected between the primary reflection surface and subreflector by one or more support rod, the feed source bracket is mounted on
At center carbocyclic ring on primary reflection surface.
Preferably, the primary reflection surface is carbon covering honeycomb sandwich structures, the carbon for including in carbon covering honeycomb sandwich structures
Carbon fiber used in covering is high modulus carbon fiber；Primary reflection surface is made up of autoclave heat-pressure curing forming method；
The material of the subreflector is the composite material of high-strength carbon fiber and resin, and subreflector passes through molded curing
Forming method is made；
The material of the feed source bracket and the material of support rod are the composite material of high-strength carbon fiber and resin, feed
Bracket passes through autoclave heat-pressure curing forming method with support rod and is made.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, the focusing time can substantially be shortened by designing focusing assembly tooling in the present invention and slightly focusing, and improve production efficiency；
2, it is precisely focused using laser tracker subsidiary, then significantly reduces the processing essence of assembly tooling
Degree, reduces the processing cost of tooling；
3, fastener uses bonding mode in the present invention, fills up gap with glue, reduces internal stress.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is carbon fiber parabola antenna structural schematic diagram provided by the invention.
Fig. 2 is focusing assembly tooling provided by the invention and master/slave reflection line position relational graph.
It is shown in figure: primary reflection surface 1；Subreflector 2；Feed source bracket 3；Support rod 4；Bottom plate 5；Secondary antidirection finding plate 6.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
As shown in Figure 1, carbon fiber parabola antenna provided by the invention, includes primary reflection surface 1, subreflector 2, feed branch
Frame 3 and support rod 4 are connected between the primary reflection surface 1 and subreflector 2 by one or more support rod 4, the feed
Bracket 3 is mounted at the center carbocyclic ring on primary reflection surface 1.Preferably, the primary reflection surface 1 is carbon covering honeycomb sandwich structures,
Carbon fiber used in the carbon covering for including in carbon covering honeycomb sandwich structures is high modulus carbon fiber；Primary reflection surface 1 passes through hot pressing
Tank heat-pressure curing forming method is made；The material of the subreflector 2 is the composite material of high-strength carbon fiber and resin,
Subreflector 2 is made up of molded curing forming method；The material of the feed source bracket 3 and the material of support rod 4 are high-strength
The composite material of carbon fiber and resin is spent, feed source bracket 3 and support rod 4 pass through autoclave heat-pressure curing forming method system
At.
Carbon fiber parabola antenna focusing assembly method provided by the invention comprising the steps of:
Rough focusing step: by the primary reflection surface 1, subreflector 2, feed source bracket 3 and support rod 4 using focusing dress
Allotment of labor puts into the preliminary focusing assembly of row；Accurate focusing step: using laser tracker to primary reflection surface 1 and subreflector 2 into
Row measurement, is finely adjusted primary reflection surface 1 and subreflector 2 according to laser tracker measured result；Fasten installation step: to tight
Firmware carries out fastening assembly to lower portion: between primary reflection surface 1 and support rod 4；Between subreflector 2 and support rod 4；Feed
Between bracket 3 and primary reflection surface 1.
Preferably, the rough focusing step comprises the steps of: reflecting surface initial baseline setting steps: in primary reflection surface 1
With benchmark reserved on subreflector 2；Tooling setting steps: design focusing assembly tooling is glued assembly tooling in one or more
Upper reserved benchmark.The reflecting surface initial baseline setting steps comprise the steps of: primary reflection surface initial baseline setting steps:
Centring pin is set in the threaded hole on the carbocyclic ring of center buried on primary reflection surface 1, using the centring pin as the first of primary reflection surface 1
Primordium is quasi-；Subreflector initial baseline setting steps: to 2 outer ring bottom carbon cloth partial thickening of subreflector, in part status
Lower machining guarantees the relationship between 2 axis of circularity and 2 outer ring of subreflector and subreflector of 2 outer ring of subreflector, will
Initial baseline of 2 outer ring of subreflector thickened as subreflector 2.The tooling setting steps comprise the steps of: bottom plate
Setting steps: setting bottom plate 5, the bottom plate 5 can borrow primary reflection surface 1 backing strip, 1.95 ° of angles flat；Secondary antidirection finding plate setting step
It is rapid: secondary antidirection finding plate 6 being set, is reserved with quasi- block and datum hole on the pair antidirection finding plate 6.
Preferably, in the rough focusing step, initial focusing to X is to 0.3~5mm of deviation, 0.3~5mm of Y-direction deviation；Institute
It states in precisely focusing step, precisely focusing to X is 0.01~1mm to deviation, and Y-direction deviation is 0.01~1mm.Precisely focusing step
In, using the measured result of laser tracker, subreflector 2 is repeatedly finely tuned, completes to lead by the way of iteration step by step
Accurate focusing assembly between reflecting surface 1 and subreflector 2.Preferably, it fastens in installation step, it is described that glue is carried out to fastener
It connects in succession, fills up glue in the gap of fastener, to reduce internal stress.
Preferred embodiment:
Carbon fiber parabola antenna focusing assembly method comprises the steps of:
Step 1: design centring pin, in conjunction with the threaded hole buried on primary reflection surface 1 on the carbocyclic ring of center as primary reflection surface 1
Initial baseline；
Step 2: 2 outer ring bottom carbon cloth partial thickening of subreflector, machining guarantees the circle of outer ring under part status
Degree and the relationship with the axis of subreflector 2, as initial baseline；
Step 3: the bottom plate 5 for being glued assembly tooling design, which borrows primary reflection surface 1 backing strip, 1.95 ° of angles, puts down, and it is secondary anti-fixed to design
3 reference blocks and 3 datum holes are reserved on the plate 6 of position, the benchmark as subsequent focusing assembly；
Step 4: using assembly tooling is glued, master-subreflector 2 initially being focused；Initial focusing to X to deviation 0.5mm,
Y-direction deviation 0.5mm.
Step 5: on the basis of initial focusing, master-subreflector 2 being measured using laser tracker, according to reality
The measurement data on border is finely adjusted subreflector 2, final precisely focusing to X to deviation≤0.05mm, Y-direction deviation≤
0.05mm。
Step 6: precisely being connected master-subreflector 2 by support rod 4 using fastener after the completion of focusing.
Step 7: being connect feed source bracket 3 with primary reflection surface 1 using fastener.
The primary reflection surface 1 is carbon covering honeycomb sandwich structures, with a thickness of 2~100mm, carbon fiber used in the covering
For high modulus carbon fiber (M40J, M55J, M60J etc.), completed by autoclave heat-pressure curing forming method.It is described secondary anti-
Penetrating face 2 is carbon fiber/resin composite materials, and the fiber is high-strength carbon fiber (T700, T800 etc.), with a thickness of 2~
20mm is completed by molded curing forming method.The feed source bracket 3 and support rod 4 are carbon fiber/resin composite materials, institute
It states fiber and passes through autoclave heat-pressure curing molding side for high-strength carbon fiber (T700, T800 etc.) with a thickness of 2~20mm
Method is completed.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (9)
- The assembly method 1. a kind of carbon fiber parabola antenna is focused, which is characterized in that comprise the steps of:Rough focusing step: by the primary reflection surface (1), subreflector (2), feed source bracket (3) and support rod (4) using tune Burnt assembly tooling carries out preliminary focusing assembly；Accurate focusing step: measuring primary reflection surface (1) and subreflector (2) using laser tracker, according to laser with Track instrument measured result is finely adjusted primary reflection surface (1) and subreflector (2)；Fastening installation step: fastening assembly is carried out to lower portion to fastener:-- between primary reflection surface (1) and support rod (4)；-- between subreflector (2) and support rod (4)；-- between feed source bracket (3) and primary reflection surface (1).
- The assembly method 2. carbon fiber parabola antenna according to claim 1 is focused, which is characterized in that the rough focusing step Suddenly it comprises the steps of:Reflecting surface initial baseline setting steps: benchmark is reserved on primary reflection surface (1) and subreflector (2)；Tooling setting steps: design focusing assembly tooling is glued in assembly tooling in one or more and reserves benchmark.
- The assembly method 3. carbon fiber parabola antenna according to claim 2 is focused, which is characterized in that at the beginning of the reflecting surface The quasi- setting steps of primordium comprise the steps of:Primary reflection surface initial baseline setting steps: setting is fixed in the threaded hole on the carbocyclic ring of center buried on primary reflection surface (1) Heart pin, using the centring pin as the initial baseline of primary reflection surface (1)；Subreflector initial baseline setting steps: to subreflector (2) outer ring bottom carbon cloth partial thickening, under part status Machining guarantees the pass between the circularity and subreflector (2) outer ring and subreflector (2) axis of subreflector (2) outer ring System, using the subreflector thickened (2) outer ring as the initial baseline of subreflector (2).
- The assembly method 4. carbon fiber parabola antenna according to claim 2 is focused, which is characterized in that the tooling setting Step comprises the steps of:Bottom plate setting steps: setting bottom plate (5), the bottom plate (5) can borrow 1.95 ° of angles of primary reflection surface (1) backing strip flat；Secondary antidirection finding plate setting steps: secondary antidirection finding plate (6) is set, is reserved with quasi- block and benchmark on the pair antidirection finding plate (6) Hole.
- The assembly method 5. carbon fiber parabola antenna according to claim 1 is focused, which is characterized in that the rough focusing step In rapid, initial focusing to X is to 0.3~5mm of deviation, 0.3~5mm of Y-direction deviation；In the accurate focusing step, precisely focusing to X is 0.01~1mm to deviation, and Y-direction deviation is 0.01~1mm.
- The assembly method 6. carbon fiber parabola antenna according to claim 1 is focused, which is characterized in that step of precisely focusing In, using the measured result of laser tracker, subreflector (2) is repeatedly finely tuned, primary reflection surface is completed using iterative method (1) the accurate focusing assembly between subreflector (2).
- The assembly method 7. carbon fiber parabola antenna according to claim 1 is focused, which is characterized in that fastening installation step In, it is described that splicing connection is carried out to fastener, glue is filled up in the gap of fastener.
- 8. a kind of can be realized walks in the focusing assembly method of carbon fiber parabola antenna described in any one of claims 1 to 7 Rapid carbon fiber parabola antenna, which is characterized in that include primary reflection surface (1), subreflector (2), feed source bracket (3) and branch Strut (4)；It is connected between the primary reflection surface (1) and subreflector (2) by one or more support rod (4), the feed source bracket (3) it is mounted at the center carbocyclic ring on primary reflection surface (1).
- 9. carbon fiber parabola antenna according to claim 8, which is characterized in that the primary reflection surface (1) is carbon covering Honeycomb sandwich structures, carbon fiber used in the carbon covering for including in carbon covering honeycomb sandwich structures is high modulus carbon fiber；It is main anti- Face (1) is penetrated to be made up of autoclave heat-pressure curing forming method；The material of the subreflector (2) is the composite material of high-strength carbon fiber and resin, and subreflector (2) is solid by molding Change forming method to be made；The material of the feed source bracket (3) and the material of support rod (4) are the composite material of high-strength carbon fiber and resin, feedback Source bracket (3) is made up of autoclave heat-pressure curing forming method with support rod (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811013004.8A CN109273862B (en) | 2018-08-31 | 2018-08-31 | Carbon fiber parabolic antenna and focusing assembly method thereof |
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| CN201811013004.8A CN109273862B (en) | 2018-08-31 | 2018-08-31 | Carbon fiber parabolic antenna and focusing assembly method thereof |
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| CN109273862B CN109273862B (en) | 2021-02-19 |
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