CN104154174A - Impact-resistant fixing structure of rectifying cover - Google Patents
Impact-resistant fixing structure of rectifying cover Download PDFInfo
- Publication number
- CN104154174A CN104154174A CN201410356045.2A CN201410356045A CN104154174A CN 104154174 A CN104154174 A CN 104154174A CN 201410356045 A CN201410356045 A CN 201410356045A CN 104154174 A CN104154174 A CN 104154174A
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- China
- Prior art keywords
- mounting hole
- cowling
- impact
- indent
- rectifying cover
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Abstract
The invention relates to an impact-resistant fixing structure of a rectifying cover. The impact-resistant fixing structure is characterized in that a mounting hole of the rectifying cover is formed in the left end of a shell, three concave steps are arranged on the cross-section side of an inner cylindrical surface of the mounting hole and include an inner step, a middle step and an outer step, the diameters of the inner step, the middle step and the outer step are gradually reduced, and threads are arranged on the inner step; convex steps which are matched with the concave steps of the mounting hole are arranged on an outer cylindrical surface of a connector of the rectifying cover, and silicone rubber pads are arranged between the convex steps on the rectifying cover and the concave steps of the mounting hole of the shell; a rubber pad is fixed to the left end of a metal pressing ring, the metal pressing ring is fixed by the aid of the inner step of the mounting hole of the threaded shell, the rubber pad is jacked on an end surface of the connector of the rectifying cover, and the rectifying cover and the shell are compressed by the metal pressing ring. The impact-resistant fixing structure has the advantages that impact on brittle materials under vibration conditions can be greatly relieved, and the impact-resistant fixing structure is adaptive to change of expansion rates of different materials at high and low temperatures.
Description
Technical field
This patent belongs to the fixed structure of cowling, particularly a kind of shock resistance fixed structure of wide temperature adaptability target seeker cowling, and the installation that can be applied to heavy caliber TV, infrared seeker cowling is fixed.
Background technique
Bigbore target seeker cowling, due to the rugged environment that vibration, impact and high low temperature change, often causes cowling to break, and has a strong impact on the working life of interior instrument.
Summary of the invention
In order to overcome the shortcoming of prior art, this patent provides a kind of shock resistance fixed structure of cowling, and it can cushion the impact of brittle material under vibration condition greatly, and adapts to the variation of different materials expansivity under high low temperature.
The present invention solves the technological scheme that its technical problem takes: the left end of housing has the mounting hole of cowling, the cross section of mounting hole inner cylindrical surface is three indent steps, indent step comprises interior step, middle step and outer step, the diameter of interior step, middle step and outer step diminishes gradually, on interior step, has screw thread; The external cylindrical surface of the jointing of described cowling is the evagination step matching with the indent step of mounting hole, between the evagination step on described cowling and the indent step of housing mounting hole, has silicone rubber pad; The fixing rubber pad of left end of metal trim ring, metal trim ring is fixed by the interior step of screw shell mounting hole, and rubber pad withstands on the end face of jointing of described cowling, and metal trim ring compresses cowling and housing.
The present invention has following advantages: install easy to adjust, the cowling border fixed contact of fragility divides the overwhelming majority for flexible material, when avoiding vibration and impacting, cowling is brought to infringement, simultaneously periphery leaves the gap producing under high/low temperature condition to adapt to different materials expansivity and do not wait compared with large flexible space and changes, and avoids cowling interference and pressurized breaks.
Brief description of the drawings
Below in conjunction with drawings and Examples, this patent is further illustrated.
Fig. 1 is partial sectional view of the present invention;
Fig. 2 is the A place enlarged view in Fig. 1 of the present invention.
Embodiment
As shown in Figure 1, 2, the left end of housing 2 has the mounting hole 6 of cowling 1, and the cross section of mounting hole 6 inner cylindrical surfaces is three indent steps, and indent step comprises interior step, middle step and outer step, the diameter of interior step, middle step and outer step diminishes gradually, on interior step, has screw thread; The external cylindrical surface of the jointing of described cowling 1 is the evagination step matching with the indent step of mounting hole 6, between the evagination step on described cowling 1 and the indent step of housing 2 mounting holes 6, has silicone rubber pad 5; The fixing rubber pad 4 of left end of metal trim ring 3, metal trim ring 3 is fixed by the interior step of screw shell 2 mounting holes 6, and rubber pad 4 withstands on the end face of jointing of described cowling 1, and metal trim ring 3 compresses cowling 1 and housing 2.
Filled silicon rubber between the indent step of the evagination step on described cowling 1 and housing 2 mounting holes 6, forms silicone rubber pad 5.
In gap between the indent step of the evagination step on described cowling 1 and housing 2 mounting holes 6 when uniform filling silicone rubber 5, if gap is inhomogeneous, by auxiliary spacer adjustment such as Copper Foils, by even its gap adjustment, after solidifying, silicone rubber 5 will assist the auxiliary spacers such as Copper Foil to extract out.
Claims (3)
1. the shock resistance fixed structure of a cowling, it is characterized in that: the left end of housing (2) has the mounting hole (6) of cowling (1), the cross section of mounting hole (6) inner cylindrical surface is three indent steps, indent step comprises interior step, middle step and outer step, the diameter of interior step, middle step and outer step diminishes gradually, on interior step, has screw thread; The evagination step of the external cylindrical surface of the jointing of described cowling (1) for matching with the indent step of mounting hole (6), has silicone rubber pad (5) between the evagination step on described cowling (1) and the indent step of housing (2) mounting hole (6); The fixing rubber pad (4) of left end of metal trim ring (3), metal trim ring (3) is fixed by the interior step of screw shell (2) mounting hole (6), rubber pad (4) withstands on the end face of jointing of described cowling (1), and metal trim ring (3) compresses cowling (1) and housing (2).
2. the shock resistance fixed structure of cowling according to claim 1, it is characterized in that: filled silicon rubber between the evagination step on described cowling (1) and the indent step of housing (2) mounting hole (6), forms silicone rubber pad (5).
3. the shock resistance fixed structure of cowling according to claim 1, it is characterized in that: uniform filling silicone rubber (5) in the gap between the evagination step on described cowling (1) and the indent step of housing (2) mounting hole (6), if gap is inhomogeneous, by auxiliary spacer adjustment, by even its gap adjustment, after silicone rubber (5) solidifies, auxiliary spacer is extracted out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356045.2A CN104154174A (en) | 2014-07-24 | 2014-07-24 | Impact-resistant fixing structure of rectifying cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356045.2A CN104154174A (en) | 2014-07-24 | 2014-07-24 | Impact-resistant fixing structure of rectifying cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104154174A true CN104154174A (en) | 2014-11-19 |
Family
ID=51879755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410356045.2A Pending CN104154174A (en) | 2014-07-24 | 2014-07-24 | Impact-resistant fixing structure of rectifying cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104154174A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5220449A (en) * | 1989-08-02 | 1993-06-15 | Minolta Camera Kabushiki Kaisha | Light beam scanning optical system |
| JPH06160779A (en) * | 1992-11-25 | 1994-06-07 | Canon Inc | Vibration proof optical system provided with variable apex angle prism device |
| CN201876609U (en) * | 2010-11-23 | 2011-06-22 | 中国三江航天工业集团公司 | Infrared optical fairing |
| US20120243093A1 (en) * | 2011-03-23 | 2012-09-27 | Tonar William L | Lens cleaning apparatus |
| CN102798976A (en) * | 2012-08-08 | 2012-11-28 | 中国科学院长春光学精密机械与物理研究所 | Compact type conformal optical system |
-
2014
- 2014-07-24 CN CN201410356045.2A patent/CN104154174A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5220449A (en) * | 1989-08-02 | 1993-06-15 | Minolta Camera Kabushiki Kaisha | Light beam scanning optical system |
| JPH06160779A (en) * | 1992-11-25 | 1994-06-07 | Canon Inc | Vibration proof optical system provided with variable apex angle prism device |
| CN201876609U (en) * | 2010-11-23 | 2011-06-22 | 中国三江航天工业集团公司 | Infrared optical fairing |
| US20120243093A1 (en) * | 2011-03-23 | 2012-09-27 | Tonar William L | Lens cleaning apparatus |
| CN102798976A (en) * | 2012-08-08 | 2012-11-28 | 中国科学院长春光学精密机械与物理研究所 | Compact type conformal optical system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141119 |