CN112072298A - Rain erosion prevention structure with wave transmission and quick disassembly functions - Google Patents
Rain erosion prevention structure with wave transmission and quick disassembly functions Download PDFInfo
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- CN112072298A CN112072298A CN202010875826.8A CN202010875826A CN112072298A CN 112072298 A CN112072298 A CN 112072298A CN 202010875826 A CN202010875826 A CN 202010875826A CN 112072298 A CN112072298 A CN 112072298A
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- Prior art keywords
- rain erosion
- nut
- self
- cushion
- section
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/285—Aircraft wire antennas
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses a rain erosion preventing structure with wave transmission and quick disassembly functions, which comprises a rain erosion head, a cushion block and a self-locking nut, wherein the outer surface of the front end of the rain erosion head conforms to the outer surface of a radome, the rear end of the rain erosion head is a cylindrical section, the outer surface of the cylindrical section is provided with threads, the cushion block is a conical section with a through hole, the cushion block is sleeved on the cylindrical section, the outer conical surface of the cushion block conforms to the inner profile of the radome, the self-locking nut is arranged on the cylindrical section, and the self-locking nut is positioned at the rear part of the cushion block, and the cushion block is locked, so that the outer conical surface of the cushion block is tightly attached to the inner molded surface of the radome, the invention solves the problems that the traditional rain erosion cap has great influence on the electrical property and is not beneficial to disassembly, it is characterized in that polytetrafluoroethylene with better wave-transmitting function is used for manufacturing a threaded connection structure of the rain erosion head and the self-locking nut, thereby the rain erosion prevention structure has certain performance of penetrating electromagnetic waves and is convenient to disassemble and assemble.
Description
Technical Field
The invention relates to the technical field of radar antenna housing design, in particular to a rain erosion prevention structure with wave transmission and quick disassembly functions.
Background
Along with aircraft technical level's improvement, aircraft head radar has proposed higher and higher requirement to the electrical property, and radome tip position receives the rain erosion more seriously, for the rain erosion that alleviates radome, installs the rain erosion cap at the tip usually, and traditional metal rain erosion cap is great to the electrical property influence, and nonmetal rain erosion cap bonds through glued mode and radome combined material cover body, is unfavorable for the dismouting to be maintained.
Disclosure of Invention
The purpose of the invention is as follows:
aiming at the problems that the traditional rain erosion cap has large influence on electrical property and is not beneficial to disassembly, the invention provides the rain erosion prevention structure with wave transmission and quick disassembly functions, which has the advantages of simple structure, small occupied space and convenient operation.
The technical scheme of the invention is as follows:
the utility model provides a prevent rain erosion structure with wave-transparent and quick dismantlement function, includes rain erosion head (1), cushion (2), self-locking nut (3), rain erosion head (1) front end surface conform with radome (4) appearance face, the rear end is a cylinder section, cylinder section surface be provided with the screw thread, cushion (2) be the circular cone section of band-pass hole, cushion (2) cover on the cylinder section, the outer circular conical surface of cushion (4) conform with radome interior profile, self-locking nut (3) set up on the cylinder section, and self-locking nut is located the rear portion of cushion (2) for locking cushion (2), the outer circular conical surface that makes cushion (2) hugs closely radome (4) interior profile.
Furthermore, the rain etching head (1), the cushion block (2) and the self-locking nut (3) are all made of polytetrafluoroethylene materials.
Furthermore, the rain etching head (1), the cushion block (2) and the self-locking nut (3) are all made of nylon materials.
Furthermore, the self-locking nut (3) comprises a nut hexagonal prism section and a nut cylindrical section, a through hole with internal threads is formed between the nut hexagonal prism section and the nut cylindrical section, and an opening of the nut cylindrical section is oval.
Furthermore, the width of the cylindrical section of the nut is smaller than that of the hexagonal prism section of the nut.
Furthermore, the width of the hexagonal prism section of the nut does not exceed the width of the cushion block (2).
Furthermore, the end face of the cylindrical section of the rain etching head (1) exceeds the end face of the opening of the cylindrical section of the nut by 2-3mm, so that the self-locking function of the self-locking nut can be realized.
Furthermore, the front end of the rain erosion head (1) is a fillet, the radius of the fillet is not more than 2mm, and the rain erosion prevention effect of the rain erosion head (1) is enhanced.
The invention has the beneficial effects that:
the invention provides a rain erosion prevention structure with wave transmission and quick disassembly functions, which solves the problems that the traditional rain erosion cap has larger influence on electrical property and is not beneficial to disassembly.
Drawings
FIG. 1 is a structural cross-sectional view of the present invention;
wherein: 1. rain erosion head, 2, cushion block, 3, self-locking nut, 4 and radome.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shapes, configurations, mutual positions and connection relationships of the components, the functions and operating principles of the components, the manufacturing processes and the operation and use methods thereof, will be further described in detail with reference to the accompanying drawings, so as to help those skilled in the art to more completely, accurately and deeply understand the concept and technical solutions of the present invention:
as shown in figure 1, the rain erosion preventing structure with wave transmission and quick disassembly functions comprises a rain erosion head 1, a cushion block 2 and a self-locking nut 3, wherein the outer surface of the front end of the rain erosion head 1 conforms to the outer profile of a radome 4 so as to keep the aerodynamic profile of the radome 4, the rear end of the rain erosion head is a cylindrical section, the outer surface of the cylindrical section is provided with threads, the cushion block 2 is a conical section with a through hole, the cushion block 2 is sleeved on the cylindrical section, the diameter of the through hole on the cushion block 2 is the same as the outer diameter of the cylindrical section so as to ensure that the cushion block 2 can be tightly contacted when being sleeved on the cylindrical section, the outer side surface of the cushion block 2 is an outer conical surface, the conicity of the outer conical surface is the same as the conicity of the inner profile of the radome 4 so as to ensure that the outer conical surface of the cushion block 2 conforms to the inner profile of the radome 4, the outer conical surface of the cushion block 2 can be tightly, self-locking nut 3 is provided with the internal thread, with the external screw-thread fit of cylinder section, and self-locking nut 3 is located the rear portion of cushion, locks cushion 2, makes the outer conical surface of cushion 2 hug closely profile in radome radar 4.
The rain erosion head 1, the cushion block 2 and the self-locking nut 3 are all made of polytetrafluoroethylene materials, the polytetrafluoroethylene materials have the advantages of being good in cold resistance, heat resistance, acid resistance and alkali resistance, and can be used for a long time in an environment of-180-260 ℃, the temperature change of the high-altitude environment of an airplane is large, therefore, the materials are suitable for the high-altitude environment, meanwhile, the polytetrafluoroethylene materials have the advantage of being low in friction coefficient, when the airplane flies at a high speed, the tetrafluoroethylene materials can reduce the friction between the rain erosion head and the air, meanwhile, the high temperature generated by the friction can be borne, meanwhile, due to the fact that the friction coefficient of the materials is low, the cushion block 2, the rain erosion head 1 and the self-locking nut 3 are easy to assemble, and the situation of blocking cannot.
Or, the rain erosion head 1, the cushion block 2 and the self-locking nut 3 can also be made of nylon materials, the nylon materials are plastics made of polyamide resin, the nylon materials have high mechanical strength and good toughness, the tensile strength and the compressive strength are higher than those of metals, the absorption capacity on impact and stress vibration is strong, the nylon materials also have the characteristic of high heat resistance, the nylon materials can be used at the high temperature of 150 ℃ for a long time, the rain erosion head 1, the cushion block 2 and the self-locking nut 3 made of the nylon materials have small external surface gloss, small friction coefficient and wear resistance, no lubricant needs to be added during assembly, the assembly is convenient, and meanwhile, the nylon materials have good corrosion resistance and excellent electrical performance.
In this embodiment, self-locking nut 3 includes nut hexagonal prism section and nut cylinder section, and the lateral surface of nut hexagonal prism section is the hexagon, can just go on with using hexagon socket wrench during assembly and dismantlement, nut hexagonal prism section and nut cylinder section between set up the through-hole of in-band screw thread, through-hole aperture and the first 1 cylinder section external diameter phase-match of rain erosion, nut cylinder section width is less than the width of nut hexagonal prism section, can reduce self-locking nut 3's quantity, when guaranteeing self-locking nut 3 mechanical strength, can effectively alleviate the weight of antenna house 4, be favorable to losing weight of aircraft, the opening of nut cylinder section is oval or circular, and the width of nut hexagonal prism section should not exceed the width of cushion, just can make the preceding terminal surface of nut hexagonal prism section hug closely the rear end face of cushion 2.
The end face of the cylindrical section of the rain erosion head 1 exceeds the end face of the opening of the cylindrical section of the nut by 2-3mm, so that the self-locking function of the self-locking nut 3 can be realized, and if the end face of the cylindrical section of the rain erosion head 1 is positioned on the inner side of the end face of the opening of the cylindrical section of the nut, the self-locking function of the self-locking nut 3 cannot be realized.
The front end of the rain erosion head 1 is a round angle, the radius of the round angle is not more than 2mm, and the rain erosion prevention effect of the rain erosion head 1 can be enhanced while the pneumatic appearance of the whole antenna housing 4 is not influenced.
During the use, overlap cushion 2 on the cylindrical section of first 1 is corroded to the rain, and first 1 is corroded through the screw thread and is connected with self-locking nut 3 to the rain, and cushion 2 exerts pressure to it through self-locking nut 3, makes the outer circular conical surface of cushion 2 hug closely profile in the radome to connect together first 1 and radome 4 are corroded to the rain, and first 1 of corrosion has good wave permeability, and this structure easy dismounting simultaneously can wide application in aircraft radome technical field.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (8)
1. The utility model provides a prevent rain erosion structure with wave-transparent and quick dismantlement function which characterized in that: including rain erosion head (1), cushion (2), self-locking nut (3), rain erosion head (1) front end surface conform with radome (4) appearance face, the rear end is a cylinder section, cylinder section surface be provided with the screw thread, cushion (2) be the circular cone section of band-pass hole, cushion (2) cover on the cylinder section, the outer circular conical surface of cushion (4) conform with radome interior profile, self-locking nut (3) set up on the cylinder section, and self-locking nut is located the rear portion of cushion (2) for locking cushion (2), the outer circular conical surface that makes cushion (2) hug closely radome (4) interior profile.
2. The structure of claim 1, wherein the structure is a structure for preventing rain erosion with wave-transparent and quick-disassembling functions, and comprises: the rain erosion head (1), the cushion block (2) and the self-locking nut (3) are all made of polytetrafluoroethylene materials.
3. The structure of claim 1, wherein the structure is a structure for preventing rain erosion with wave-transparent and quick-disassembling functions, and comprises: the rain erosion head (1), the cushion block (2) and the self-locking nut (3) are all made of nylon materials.
4. The structure of claim 1, wherein the structure is a structure for preventing rain erosion with wave-transparent and quick-disassembling functions, and comprises: the self-locking nut (3) comprises a nut hexagonal prism section and a nut cylindrical section, a through hole with internal threads is formed between the nut hexagonal prism section and the nut cylindrical section, and an opening of the nut cylindrical section is oval.
5. The structure of claim 4, wherein the structure is a structure with wave-transparent and quick-detachable functions, and is characterized in that: the width of the cylindrical section of the nut is smaller than that of the hexagonal prism section of the nut.
6. The structure of claim 4, wherein the structure is a structure with wave-transparent and quick-detachable functions, and is characterized in that: the width of the hexagonal prism section of the nut does not exceed the width of the cushion block (2).
7. The structure of claim 1, wherein the structure is a structure for preventing rain erosion with wave-transparent and quick-disassembling functions, and comprises: the end face of the cylindrical section of the rain erosion head (1) exceeds the end face of the opening of the cylindrical section of the nut by 2-3mm, and the self-locking function of the self-locking nut can be realized.
8. The structure of claim 1, wherein the structure is a structure for preventing rain erosion with wave-transparent and quick-disassembling functions, and comprises: the front end of the rain erosion head (1) is a fillet, the radius of the fillet is not more than 2mm, and the rain erosion prevention effect of the rain erosion head (1) is enhanced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010875826.8A CN112072298A (en) | 2020-08-26 | 2020-08-26 | Rain erosion prevention structure with wave transmission and quick disassembly functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010875826.8A CN112072298A (en) | 2020-08-26 | 2020-08-26 | Rain erosion prevention structure with wave transmission and quick disassembly functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112072298A true CN112072298A (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010875826.8A Pending CN112072298A (en) | 2020-08-26 | 2020-08-26 | Rain erosion prevention structure with wave transmission and quick disassembly functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112072298A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1137699A (en) * | 1997-07-18 | 1999-02-12 | Mitsubishi Heavy Ind Ltd | Flier |
| US20160020512A1 (en) * | 2014-07-21 | 2016-01-21 | The Boeing Company | Aerial vehicle radome assembly and methods for assembling the same |
| EP3159652A1 (en) * | 2015-10-21 | 2017-04-26 | The Boeing Company | Whisker reinforced high fracture toughness ceramic tips for radomes |
| CN108148548A (en) * | 2016-12-05 | 2018-06-12 | 航天特种材料及工艺技术研究所 | A kind of anti-weathering wave transparent antenna house of high temperature resistant and preparation method thereof |
| CN109494476A (en) * | 2018-07-13 | 2019-03-19 | 中国航空工业集团公司济南特种结构研究所 | A kind of radome tip positioning repairing type mechanism |
| CN110541879A (en) * | 2019-07-26 | 2019-12-06 | 中国航空工业集团公司济南特种结构研究所 | Rain-proof cap connection structure that loses |
-
2020
- 2020-08-26 CN CN202010875826.8A patent/CN112072298A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1137699A (en) * | 1997-07-18 | 1999-02-12 | Mitsubishi Heavy Ind Ltd | Flier |
| US20160020512A1 (en) * | 2014-07-21 | 2016-01-21 | The Boeing Company | Aerial vehicle radome assembly and methods for assembling the same |
| EP3159652A1 (en) * | 2015-10-21 | 2017-04-26 | The Boeing Company | Whisker reinforced high fracture toughness ceramic tips for radomes |
| CN108148548A (en) * | 2016-12-05 | 2018-06-12 | 航天特种材料及工艺技术研究所 | A kind of anti-weathering wave transparent antenna house of high temperature resistant and preparation method thereof |
| CN109494476A (en) * | 2018-07-13 | 2019-03-19 | 中国航空工业集团公司济南特种结构研究所 | A kind of radome tip positioning repairing type mechanism |
| CN110541879A (en) * | 2019-07-26 | 2019-12-06 | 中国航空工业集团公司济南特种结构研究所 | Rain-proof cap connection structure that loses |
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Application publication date: 20201211 |
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| RJ01 | Rejection of invention patent application after publication |