CN110541879A - Rain-proof cap connection structure that loses - Google Patents
Rain-proof cap connection structure that loses Download PDFInfo
- Publication number
- CN110541879A CN110541879A CN201910692807.9A CN201910692807A CN110541879A CN 110541879 A CN110541879 A CN 110541879A CN 201910692807 A CN201910692807 A CN 201910692807A CN 110541879 A CN110541879 A CN 110541879A
- Authority
- CN
- China
- Prior art keywords
- rain
- cap
- nut
- rain erosion
- erosion prevention
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003628 erosive effect Effects 0.000 claims abstract description 52
- 230000002265 prevention Effects 0.000 claims abstract description 34
- 239000002131 composite material Substances 0.000 claims abstract description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
- F16B23/0015—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/004—Sealing; Insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Aerials (AREA)
Abstract
The invention belongs to the technical field of aviation structure design, and particularly relates to a rain erosion prevention cap connecting structure; the structure consists of a rain-proof erosion cap and a nut, wherein a screw rod with external threads is designed in the rain-proof erosion cap, and the nut is matched with the screw rod to fix the rain-proof erosion cap at the tip of the composite material cover body. The structure provided by the invention adopts the mode that the external thread is matched with the special nut for connection, so that the connection strength of the rain erosion preventing cap is increased, and the use reliability of the rain erosion preventing cap is improved.
Description
Technical Field
The invention belongs to the technical field of aviation structural design, and particularly relates to a rain erosion prevention cap connecting structure.
background
When an airplane flies through a rain zone at a high speed, the surface of the radar antenna housing is damaged by the impact and the erosion of raindrops, and the phenomenon is called rain erosion of the antenna housing. In order to prevent the occurrence of the rain erosion phenomenon, a rain erosion preventing coating is generally sprayed on the outer surface of the aircraft radome, and a rain erosion preventing cap is installed at the tip of the radar radome.
The rain erosion prevention cap of the aircraft radome is generally installed in a connection mode that an internal thread is formed on the rain erosion prevention cap and then a screw is matched. The internal thread is matched with the screw, the M5 or M6 thread connection is generally adopted, the connection strength is weak, and the phenomenon of loosening or falling off is possible to occur in the use process of the airplane.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the problem that the rain erosion prevention cap is weak in connection strength because the rain erosion prevention cap usually adopts a connection mode of matching an internal thread and a screw, the invention redesigns a rain erosion prevention cap connection structure. The rain-erosion-proof cap connecting structure is changed into an external thread, and meanwhile, the rain-erosion-proof cap connecting structure is improved by matching with a specially-made nut.
The technical scheme is as follows: the utility model provides a rain-proof cap connection structure that loses, this structure is corroded the cap by rain-proof and is constituteed with the nut, wherein, the rain-proof screw rod that loses the cap in design and have the external screw thread that loses, nut and screw rod cooperation will prevent that rain loses the cap and fix radar antenna house point portion. The size of the external thread on the rain-proof cap can reach more than M10.
In the structure, the nut and the inner profile symbol of the composite material cover body are matched more closely when the nut is screwed down.
The nut rear section is provided with a limiting hole for fixing the nut during assembly, and the anti-rain cap is convenient to rotate so as to achieve the purpose of fixedly assembling the nut and the nut.
The front-end profile of the rain erosion prevention cap and the composite material cover body profile are in smooth transition, and the requirement on pneumatic appearance is met.
The back end face of the rain erosion prevention cap screw is provided with the straight groove, so that the rain erosion prevention cap can be conveniently adjusted during assembly.
The rain erosion prevention cap is made of polytetrafluoroethylene, impact resistance is high, and the appearance is easy to process.
The nut is made of polytetrafluoroethylene.
All contact surfaces are coated with adhesives, and the sealing and the looseness prevention are realized.
The beneficial technical effects are as follows: the structure provided by the invention adopts the mode that the external thread is matched with the special nut for connection, so that the connection strength of the rain erosion preventing cap is increased, and the use reliability of the rain erosion preventing cap is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a rear view of the present invention;
Description of numbering: 1-rain erosion prevention cap, 2-nut.
Detailed Description
Aiming at the problem that the rain erosion prevention cap usually adopts a connection mode of matching internal threads and screws and has weak connection strength, a rain erosion prevention cap connection structure is redesigned. The rain-erosion-proof cap connecting structure is changed into an external thread, and meanwhile, the rain-erosion-proof cap connecting structure is improved by matching with a specially-made nut. The implementation process of the invention is as follows: a straight groove is formed on the rain-proof cap 1, three limiting holes are formed on the nut 2, and then the rain-proof cap and the nut are screwed tightly.
The rain erosion prevention cap connecting structure is described in detail below with reference to the accompanying drawings, and the rain erosion prevention cap connecting structure is composed of a rain erosion prevention cap 1 and a nut 2, wherein a screw with external threads is designed in the rain erosion prevention cap 1, and the nut is matched with the screw to fix the rain erosion prevention cap at the tip of a radome.
On the basis of the structure, the rear section of the nut 2 is provided with a limiting hole for fixing the nut during assembly, so that the rain erosion preventing cap 1 can be rotated conveniently to achieve the purpose of fixedly assembling the nut and the rain erosion preventing cap.
The front-end profile of the rain erosion prevention cap 1 and the composite material cover body profile are in smooth transition, and the requirement on pneumatic appearance is met.
The rear end face of the screw rod of the rain erosion preventing cap is provided with the straight groove, but the screw rod is not limited to the straight groove, and the limiting grooves in other shapes can be only used for driving the rain erosion preventing cap to rotate; such a design is convenient for adjustment of the rain erosion prevention cap during assembly.
the rain erosion prevention cap 1 is made of polytetrafluoroethylene, and is high in impact resistance and easy to machine in appearance. The nut 2 is also made of polytetrafluoroethylene; so as to ensure the same material to have consistent environmental adaptation capability and prevent the two structures from loosening due to environmental mutation.
Meanwhile, all contact surfaces are coated with adhesives, and the sealing and the looseness prevention are achieved.
According to the novel rain-proof erosion-proof cap connecting structure, the external thread connecting ring and the special nut are manufactured on the rain-proof erosion-proof cap for connection, so that the connecting strength can be improved. The method can be used in the design process of the multi-type aircraft radar antenna housing.
Claims (8)
1. The utility model provides a rain-proof cap connection structure that loses which characterized in that: the structure consists of a rain-proof erosion cap and a nut, wherein a screw rod with external threads is designed in the rain-proof erosion cap, and the nut is matched with the screw rod to fix the rain-proof erosion cap at the tip of the composite material cover body.
2. A rain erosion prevention cap attachment structure according to claim 1, wherein: the nut and the inner profile of the composite material cover body are in a symbol shape.
3. A rain erosion prevention cap attachment structure according to claim 1, wherein: and a limiting hole is formed in the rear section of the nut.
4. A rain erosion prevention cap attachment structure according to claim 1, wherein: the front end profile of the rain erosion prevention cap and the composite material cover body profile are in smooth transition.
5. A rain erosion prevention cap attachment structure according to claim 1, wherein: the rear end face of the rain erosion prevention cap screw is provided with a straight groove.
6. A rain erosion prevention cap connection structure according to claim 1 or 5, wherein: the rain erosion prevention cap is made of polytetrafluoroethylene.
7. A rain erosion prevention cap connection structure according to claim 1 or 2, wherein: the nut is made of polytetrafluoroethylene.
8. A rain erosion prevention cap attachment structure according to claim 1, wherein: sealing glue is coated on any contact surface of the rain erosion preventing cap, the nut and the composite material cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692807.9A CN110541879A (en) | 2019-07-26 | 2019-07-26 | Rain-proof cap connection structure that loses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910692807.9A CN110541879A (en) | 2019-07-26 | 2019-07-26 | Rain-proof cap connection structure that loses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110541879A true CN110541879A (en) | 2019-12-06 |
Family
ID=68710370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910692807.9A Pending CN110541879A (en) | 2019-07-26 | 2019-07-26 | Rain-proof cap connection structure that loses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110541879A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072298A (en) * | 2020-08-26 | 2020-12-11 | 中国航空工业集团公司济南特种结构研究所 | Rain erosion prevention structure with wave transmission and quick disassembly functions |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87207916U (en) * | 1987-05-08 | 1988-02-03 | 黄为民 | Screw coupling |
| JPS63160402A (en) * | 1986-12-23 | 1988-07-04 | Nec Corp | Antenna |
| CN205452539U (en) * | 2015-12-22 | 2016-08-10 | 中国航空工业集团公司济南特种结构研究所 | Structure is lost in missile -borne radome weathering cap and rain -proof of guided missile antenna cover head portion |
| 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 |
| CN208522069U (en) * | 2018-07-13 | 2019-02-19 | 中国航空工业集团公司济南特种结构研究所 | A kind of combined waterproof erosion cap structure |
-
2019
- 2019-07-26 CN CN201910692807.9A patent/CN110541879A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63160402A (en) * | 1986-12-23 | 1988-07-04 | Nec Corp | Antenna |
| CN87207916U (en) * | 1987-05-08 | 1988-02-03 | 黄为民 | Screw coupling |
| CN205452539U (en) * | 2015-12-22 | 2016-08-10 | 中国航空工业集团公司济南特种结构研究所 | Structure is lost in missile -borne radome weathering cap and rain -proof of guided missile antenna cover head portion |
| 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 |
| CN208522069U (en) * | 2018-07-13 | 2019-02-19 | 中国航空工业集团公司济南特种结构研究所 | A kind of combined waterproof erosion cap structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072298A (en) * | 2020-08-26 | 2020-12-11 | 中国航空工业集团公司济南特种结构研究所 | Rain erosion prevention structure with wave transmission and quick disassembly functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191206 |
|
| RJ01 | Rejection of invention patent application after publication |