CN205173486U - Sealing ring - Google Patents
Sealing ring Download PDFInfo
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- CN205173486U CN205173486U CN201520876817.5U CN201520876817U CN205173486U CN 205173486 U CN205173486 U CN 205173486U CN 201520876817 U CN201520876817 U CN 201520876817U CN 205173486 U CN205173486 U CN 205173486U
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- wall
- arc section
- seal ring
- inwall
- protuberance
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Abstract
The utility model discloses a sealing ring, its cross sectional shape are " M " and appear, including first outer wall, the second outer wall that is located the outside and being located inboard first inner wall, second inner wall, first inner wall is connected through first circular arc section to first outer wall, and the second inner wall is connected through second circular arc section to first inner wall, and the second inner wall is through third circular arc section connection second outer wall, first outer wall, first circular arc section and first inner wall and second inner wall, third circular arc section and the second outer wall center line symmetry along second circular arc section. Be located first outer wall, the second outer wall in the outside and be located inboard first inner wall, second inner wall through the setting, and first outer wall through first circular arc section connect first inner wall, first inner wall through second circular arc section connect the second inner wall, the second outer wall is connected through third circular arc section to the second inner wall, has improved sealing ring's elastic deformation performance greatly for sealing ring is difficult for taking place plastic deformation and loses deformability, has improved sealing ring sealing performance, and has prolonged sealing ring's life.
Description
Technical field
The utility model relates to Sealing field, especially, relates to a kind of seal ring.
Background technique
Aeroengine is from be born, and the sealing of gas just becomes one of main problem, has significant impact to the performance of product, reliability, life-span and maintainability.During aeroengine work, high temperature need be reduced or eliminated as far as possible, high-pressure gas leaks, prevent gas leakage from polluting or damaging other component, improve the Performance And Reliability of aeroengine.
In existing encapsulation scheme, usually C RunddichtringO is installed high-temperature area within the engine, high temperature, high-pressure gas are carried out axis and obturaged.Operationally, press seal circle also makes it to produce resiliently deformable C RunddichtringO, the elastic force that resiliently deformable produces make its working surface all the time with the gas flow close contact of motor to realize continuing to obturage.Because the vibration of aeroengine is large, pressure and temperature wide ranges and change fierceness, thus compress C RunddichtringO further, very easily make C RunddichtringO partial deformation produce plastic deformation.Now, C RunddichtringO some lost elastic deformability, the impacting force of C RunddichtringO and adjacent parts diminishes, and seal performance reduces, and after Long-Time Service, is difficult to ensure good sealability.
Therefore, there is the shortcomings such as deformation behavior difference, sealing effect bad and working life is short in existing C RunddichtringO.
Model utility content
The utility model provides a kind of seal ring, to solve the technical problem that existing C RunddichtringO exists the shortcomings such as deformation behavior difference, sealing effect bad and working life is short.
The technical solution adopted in the utility model is as follows:
A kind of seal ring, the sectional shape of seal ring is in " M " shape, comprise be positioned at outside the first outer wall, the second outer wall and be positioned at inner side the first inwall, the second inwall, first outer wall connects the first inwall through the first arc section, first inwall connects the second inwall through the second arc section, second inwall connects the second outer wall through three-arc section, and the first outer wall, the first arc section and the first inwall and the second inwall, three-arc section and the second outer wall are symmetrical along the center line of the second arc section.
Further, the first outer wall to stretch out formation first protuberance along the circumference of seal ring, and the first protuberance connects the first arc section through the first recess;
Second outer wall to stretch out formation second protuberance along the circumference of seal ring, and the second protuberance connects three-arc section through the second recess.
Further, the first protuberance is provided with rounded corner along away from one end of the first recess, and the radius of the first protuberance is greater than the radius of the first recess, and the first recess is circumscribed with the first protuberance, the first arc section respectively;
Second protuberance is provided with rounded corner along away from one end of the second recess, and the radius of the second protuberance is greater than the radius of the second recess, and the second recess is circumscribed with the second protuberance, three-arc section respectively.
Further, the first inwall is straightway, circumscribed with the first arc section, the second arc section respectively;
Second inwall is straightway, circumscribed with the second arc section, three-arc section respectively.
Further, the first arc section, the second arc section and three-arc section is semicircle and radius is equal.
Further, seal ring entirety is in circular.
Further, seal ring adopts nickel hardfacing alloy to make.
Further, seal ring is 0.25 ~ 0.3mm along the thickness of profile.
The utility model has following beneficial effect:
The utility model seal ring, by arrange be positioned at outside the first outer wall, the second outer wall and be positioned at inner side the first inwall, the second inwall, and the first outer wall connects the first inwall through the first arc section, the first inwall connects the second inwall through the second arc section, the second inwall connects the second outer wall through three-arc section, make the sectional shape of seal ring in " M " shape, substantially increase the deformation behavior of seal ring, make seal ring not easily plastic deformation occur and lose deformability, improve sealing ring tightness energy, and extend the working life of seal ring.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model preferred embodiment seal ring;
Fig. 2 be Fig. 1 along A-A to cross-sectional schematic;
Fig. 3 is the mounting structure schematic diagram that the utility model preferred embodiment seal ring is applied to aeroengine.
Description of reference numerals:
1, seal ring;
10, the first outer wall; 11, the first protuberance; 13, the first recess;
20, the first arc section;
30, the first inwall;
40, the second arc section;
50, the second inwall;
60, three-arc section;
70, the second outer wall; 71, the second protuberance; 73, the second recess;
2, the first side wall;
3, the second sidewall.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
Preferred embodiment of the present utility model provides a kind of seal ring, and sealing circle has that deformation behavior is good, the advantage of good sealing effect and long service life.With reference to Fig. 1 and Fig. 2, the sectional shape of the present embodiment seal ring 1 is in " M " shape, comprise the first outer wall 10 being positioned at outside, second outer wall 70 and the first inwall 30 being positioned at inner side, second inwall 50, wherein, first outer wall 10 connects the first inwall 30 through the first arc section 20, first inwall 30 connects the second inwall 50 through the second arc section 40, second inwall 50 connects the second outer wall 70 through three-arc section 60, first outer wall 10, first arc section 20 and the first inwall 30 and the second inwall 50, three-arc section 60 and the second outer wall 70 are symmetrical along the center line of the second arc section 40.
The present embodiment seal ring 1 is positioned at first outer wall 10 in outside by arranging, second outer wall 70 and be positioned at inner side the first inwall 30, second inwall 50, and the first outer wall 10 connects the first inwall 30 through the first arc section 20, first inwall 30 connects the second inwall 50 through the second arc section 40, second inwall 50 connects the second outer wall 70 through three-arc section 60, make the sectional shape of seal ring 1 in " M " shape, substantially increase the deformation behavior of seal ring, make seal ring not easily plastic deformation occur and lose deformability, improve sealing ring tightness energy, and extend the working life of seal ring.
Preferably, with reference to Fig. 2, in the present embodiment, the first outer wall 10 connects the first arc section 20 along the circumference of seal ring formation first protuberance 11, first protuberance 11 that stretches out through the first recess 13; Second outer wall 70 connects three-arc section 60 along the circumference of seal ring formation second protuberance 71, second protuberance 71 that stretches out through the second recess 73.Like this, the first outer wall 10 side and the second outer wall 70 side is made all to form two protuberances, namely there is the protuberance of the first protuberance 11 and the first arc section 20 the first outer wall 10 side, and there is the protuberance of the second protuberance 71 and three-arc section 60 the second outer wall 70 side, thus strengthens the compact siro spinning technology with parts to be sealed.
Preferably, the first protuberance 11 is provided with rounded corner along the one end away from the first recess 13, and the radius of the first protuberance 11 is greater than the radius of the first recess 13, and the first recess 13 is circumscribed with the first protuberance 11, first arc section 20 respectively; Second protuberance 71 is provided with rounded corner along the one end away from the second recess 73, and the radius of the second protuberance 71 is greater than the radius of the second recess 73, and the second recess 73 is circumscribed with the second protuberance 71, three-arc section 60 respectively.Adopt this structure, the sealability of seal ring 1 can be improved further.More preferably, the first arc section 20, second arc section 40 and three-arc section 60 is semicircle and radius is equal, when making seal ring 1 that deformation occurs like this, its deformation quantity is equal and increase the elastic performance of seal ring 1, extends the working life of seal ring.
Preferably, the first inwall 30 is straightway, circumscribed with the first arc section 20, second arc section 40 respectively; Second inwall 50 is straightway, circumscribed with the second arc section 40, three-arc section 60 respectively.After the present embodiment seal ring 1 is squeezed, there is deformation in the first arc section 20, second arc section 40 and three-arc section 60 simultaneously, and also less deformation can be there is in the first protuberance 11, first recess 13, second protuberance 71, second recess 73, first inwall 30 and the second inwall 50, substantially increase the deformation performance of seal ring, therefore, not easily there is plastic deformation and lose deformability in seal ring, improves the working life of seal ring.In addition, when the present embodiment seal ring is applied to aeroengine, the draught head between the pressurized gas of aeroengine and low-pressure gas promotes the first protuberance 11, second protuberance 71 and adjacent part close contact, has reinforing function to sealing effect.
The present embodiment seal ring 1 entirety is circular, so that the axis being applied to aeroengine is obturaged.With reference to Fig. 3, the present embodiment seal ring 1 is installed on a high-temperature area of aeroengine, be installed in be parallel to each other between the first side wall 2 and the second sidewall 3; The central axis of seal ring 1 is vertical with the second sidewall 3 with the first side wall 2, first protuberance 11 of seal ring 1 is resisted against the first side wall 2 by elastic force, and the second protuberance 71 arc of seal ring 1 is resisted against the second sidewall 3 by elastic force, form seal interface, leak to low pressure area to stop seal ring zone of high pressure high-temperature gas.In actual applications, the first side wall 2 of high-temperature area and the second sidewall 3 further compresses seal 1 after producing thermal expansion of being heated makes it elastic strain occur to improve the sealing effect of seal ring.Therefore the present embodiment seal ring is particularly useful in aeroengine, high temperature, high-pressure gas being carried out to axis and obturaging.
Preferably, in order to improve the heat-resisting ability of the present embodiment seal ring, the material of sealing circle is nickel hardfacing alloy, and this kind of material can keep excellent strength character under 650 DEG C of operating modes.More preferably, in order to make the voltage endurance capability of the present embodiment seal ring improve further, the thickness along seal ring profile is 0.25mm ~ 0.3mm.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a seal ring, it is characterized in that, the sectional shape of described seal ring is in " M " shape, comprise the first outer wall (10) being positioned at outside, second outer wall (70) and be positioned at inner side the first inwall (30), second inwall (50), described first outer wall (10) connects described first inwall (30) through the first arc section (20), described first inwall (30) connects described second inwall (50) through the second arc section (40), described second inwall (50) connects described second outer wall (70) through three-arc section (60), described first outer wall (10), described first arc section (20) and described first inwall (30) and described second inwall (50), described three-arc section (60) and the second outer wall (70) are symmetrical along the center line of described second arc section (40).
2. seal ring according to claim 1, is characterized in that,
Described first outer wall (10) to stretch out formation first protuberance (11) along the circumference of described seal ring, and described first protuberance (11) connects described first arc section (20) through the first recess (13);
Described second outer wall (70) to stretch out formation second protuberance (71) along the circumference of described seal ring, and described second protuberance (71) connects described three-arc section (60) through the second recess (73).
3. seal ring according to claim 2, is characterized in that,
Described first protuberance (11) is provided with rounded corner along the one end away from described first recess (13), the radius of described first protuberance (11) is greater than the radius of described first recess (13), and described first recess (13) is circumscribed with described first protuberance (11), described first arc section (20) respectively;
Described second protuberance (71) is provided with rounded corner along the one end away from described second recess (73), the radius of described second protuberance (71) is greater than the radius of described second recess (73), and described second recess (73) is circumscribed with described second protuberance (71), described three-arc section (60) respectively.
4. seal ring according to claim 3, is characterized in that,
Described first inwall (30) is straightway, circumscribed with described first arc section (20), described second arc section (40) respectively;
Described second inwall (50) is straightway, circumscribed with described second arc section (40), described three-arc section (60) respectively.
5. seal ring according to claim 4, is characterized in that,
Described first arc section (20), described second arc section (40) and described three-arc section (60) is semicircle and radius is equal.
6., according to the arbitrary described seal ring of claim 1 to 5, it is characterized in that,
Described seal ring entirety is in circular.
7. seal ring according to claim 6, is characterized in that,
Described seal ring adopts nickel hardfacing alloy to make.
8. seal ring according to claim 7, is characterized in that,
Described seal ring is 0.25 ~ 0.3mm along the thickness of profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520876817.5U CN205173486U (en) | 2015-11-05 | 2015-11-05 | Sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520876817.5U CN205173486U (en) | 2015-11-05 | 2015-11-05 | Sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173486U true CN205173486U (en) | 2016-04-20 |
Family
ID=55737480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520876817.5U Active CN205173486U (en) | 2015-11-05 | 2015-11-05 | Sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205173486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145962A (en) * | 2023-10-30 | 2023-12-01 | 沈阳精航科技有限公司 | Method for improving deformation elasticity of fluid seal C-shaped sealing ring |
-
2015
- 2015-11-05 CN CN201520876817.5U patent/CN205173486U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145962A (en) * | 2023-10-30 | 2023-12-01 | 沈阳精航科技有限公司 | Method for improving deformation elasticity of fluid seal C-shaped sealing ring |
| CN117145962B (en) * | 2023-10-30 | 2024-01-09 | 沈阳精航科技有限公司 | Method for improving deformation elasticity of fluid seal C-shaped sealing ring |
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| GR01 | Patent grant |