CN103953731B - End face labyrinth static seal structure - Google Patents
End face labyrinth static seal structure Download PDFInfo
- Publication number
- CN103953731B CN103953731B CN201410172358.2A CN201410172358A CN103953731B CN 103953731 B CN103953731 B CN 103953731B CN 201410172358 A CN201410172358 A CN 201410172358A CN 103953731 B CN103953731 B CN 103953731B
- Authority
- CN
- China
- Prior art keywords
- plane
- ring packing
- shaft
- sealed department
- outer inclined
- 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.)
- Expired - Fee Related
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 15
- 238000012856 packing Methods 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The present invention relates to a kind of end face labyrinth static seal structure, between the sealed department and the sealed department of shaft-like part of band orifice, be provided with sealing gasket; Inclined-plane in the ring packing that the tip portion that the sealed department of described band orifice is included in mounting hole connects, in ring packing, the large mouth on inclined-plane upward, the little mouth down on inclined-plane in ring packing, in ring packing, the large mouth opening's edge portion on inclined-plane is connected with ringwise lower seal plane; The sealed department of described shaft-like part is included in the ringwise upper sealing plane that shaft-like part is arranged, the outer inclined-plane of ring packing is connected with at the inner circular part of upper sealing plane, the large mouth on the outer inclined-plane of ring packing upward, the little mouth down on the outer inclined-plane of ring packing, has annular radial projection at the middle part on the outer inclined-plane of ring packing; And the outer inclined-plane of ring packing coordinates with inclined-plane in ring packing, upper sealing plane coordinates with lower seal plane.Good sealing effect of the present invention, effectively can prevent structural leakage, good reliability.
Description
Technical field
The present invention relates to a kind of quiet seal structure in labyrinth of Mechanical end face, especially a kind of end face labyrinth static seal structure.
Background technique
Existing Mechanical end face static seal many employings plane sealing, its structure is simple, uses under can ensureing general normality operating mode, but in the higher occasion of usage requirement, is difficult to meet usage requirement.As the sealing of natural gas engine cylinder head spark plug position, need to carry out leak test in assembly process, use the disposable up-to-standard rate of plane sealing low, and easily Seepage occurs in endurance test, road examination and using process.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of rational in infrastructure, sealing reliability is high and the end face labyrinth static seal structure that Applicable scope is wider.
According to technological scheme provided by the invention, described end face labyrinth static seal structure, comprises band orifice, shaft-like part and sealing gasket, and band orifice is provided with mounting hole, between the sealed department and the sealed department of shaft-like part of band orifice, be provided with sealing gasket; Inclined-plane in the ring packing that the tip portion that the sealed department of described band orifice is included in mounting hole connects, in ring packing, the large mouth on inclined-plane upward, the little mouth down on inclined-plane in ring packing, in ring packing, the large mouth opening's edge portion on inclined-plane is connected with ringwise lower seal plane;
The sealed department of described shaft-like part is included in the ringwise upper sealing plane that shaft-like part is arranged, the outer inclined-plane of ring packing is connected with at the inner circular part of upper sealing plane, the large mouth on the outer inclined-plane of ring packing upward, the little mouth down on the outer inclined-plane of ring packing, has annular radial projection at the middle part on the outer inclined-plane of ring packing;
And the outer inclined-plane of ring packing coordinates with inclined-plane in ring packing, upper sealing plane coordinates with lower seal plane.
In described ring packing, inclined-plane is inner conical surface.
Described annular radial projection is that arc surface is protruding.
Described sealing gasket is made up of plastic material.
Described band orifice is plate part, shaft-like part or block part.
Good sealing effect of the present invention, effectively can prevent structural leakage, improves disposable leak detection up-to-standard rate; Good reliability, not easily produces inefficacy, leaks, avoid because seal failure causes a series of infringement to machinery in Long-Time Service.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Fig. 3 is the assembly relation schematic diagram of embodiment 1 before labyrinth seal is formed.
Fig. 4 is the assembly relation schematic diagram of embodiment 2 before labyrinth seal is formed.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
This end face labyrinth static seal structure, comprises band orifice 1, shaft-like part 2 and sealing gasket 3, and band orifice 1 is provided with mounting hole 1.3, between the sealed department and the sealed department of shaft-like part 2 of band orifice 1, be provided with sealing gasket 3; Inclined-plane 1.1 in the ring packing that the tip portion that the sealed department of described band orifice 1 is included in mounting hole 1.3 connects, in ring packing, the large mouth on inclined-plane 1.1 upward, the little mouth down on inclined-plane 1.1 in ring packing, in ring packing, the large mouth opening's edge portion on inclined-plane 1.1 is connected with ringwise lower seal plane 1.2;
The sealed department of described shaft-like part 2 is included in the ringwise upper sealing plane 2.2 that shaft-like part 2 is arranged, the outer inclined-plane 2.1 of ring packing is connected with at the inner circular part of upper sealing plane 2.2, the large mouth on the outer inclined-plane 2.1 of ring packing upward, the little mouth down on the outer inclined-plane 2.1 of ring packing, has annular radial projection 2.3 at the middle part on the outer inclined-plane 2.1 of ring packing;
And the outer inclined-plane 2.1 of ring packing coordinates with inclined-plane in ring packing 1.1, upper sealing plane 2.2 coordinates with lower seal plane 1.2.
In described ring packing, inclined-plane 1.1 is inner conical surface.
Described annular radial protruding 2.3 is that arc surface is protruding.
Described sealing gasket 3 is made up of soft material, and it generally can adopt the softer materials such as red copper, brass or aluminium to make.
Described band orifice 1 is plate part, shaft-like part or block part.
Embodiment 1
As shown in Figures 1 and 3, when assembling, with under the threaded tightening force effect between orifice 1 and shaft-like part 2, inclined-plane 1.1 in the ring packing that the center portion material of sealing gasket 3 is pressed to band orifice 1 by the annular radial projection 2.3 of shaft-like part 2, sealing gasket 3 passes through plastic deformation, on the upside of it, fit with upper sealing plane 2.2 in outer inclined-plane 2.1 with the ring packing of shaft-like part 2, fit with lower seal plane 1.2 with inclined-plane 1.1 in the ring packing of band orifice 1 on the downside of it, thus form the simple and easy labyrinth static seal of " plane+male and fomale(M&F) ".
In ring packing, the shape on inclined-plane 1.1 can be inner conical surface, also can be the depression of other shape; The shape on the outer inclined-plane 2.1 of ring packing can be protruding arc surface, also can be the crowning of other shape.
Embodiment 2
As shown in Fig. 2 and Fig. 4, it is the malformation of the above embodiment of the present invention, and its main distinction is that between band orifice 1 and shaft-like part 2, nothing screws thread section, could form effective simple and easy labyrinth static seal under needing External Force Acting.
Principle of the present invention is:
Band orifice 1 is lower seal plane 1.2 in sealing position outer rim, its inner rim is inclined-plane 1.1 in ring packing, the shaft-like part 2 matched with it is sealing plane 2.2 on sealing position outer rim is, its inner rim is the outer inclined-plane 2.1 of ring packing, has annular radial projection 2.3 at the middle part on the outer inclined-plane 2.1 of ring packing; During assembling, the outer inclined-plane 2.1 of the ring packing of shaft-like part 2 and annular radial projection 2.3 material in sealing gasket 3 center portion be between band orifice 1 and shaft-like part 2 two parts is pressed to be with orifice 1 ring packing in inclined-plane 1.1(and central concave position), thus the simple and easy labyrinth static seal of formation " plane+male and fomale(M&F) ".
The outer rim of sealing gasket 3 is with orifice 1 and shaft-like part 2 compacting, the center portion of sealing gasket 3 be extruded occur plastic deformation and with inclined-plane 1.1(and concave surface in the ring packing of band orifice 1) and the outer inclined-plane 2.1 of ring packing of shaft-like part 2 and the protruding 2.3(of annular radial and convex surface) fit, thus the simple and easy labyrinth static seal of formation " plane+male and fomale(M&F) ".
Upper described embodiment is only that protection scope of the present invention is not limited thereto in order to absolutely prove the preferred embodiment that the present invention lifts.The equivalent alternative or conversion that those skilled in the art do on basis of the present invention, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (3)
1. an end face labyrinth static seal structure, comprise band orifice (1), shaft-like part (2) and sealing gasket (3), band orifice (1) is provided with mounting hole (1.3), inclined-plane (1.1) in the ring packing that the tip portion that the sealed department of described band orifice (1) is included in mounting hole (1.3) connects, in ring packing, the large mouth of inclined-plane (1.1) upward, the little mouth down of inclined-plane (1.1) in ring packing, in ring packing, the large mouth opening's edge portion of inclined-plane (1.1) is connected with ringwise lower seal plane (1.2);
The sealed department of described shaft-like part (2) is included in the upper ringwise upper sealing plane (2.2) arranged of shaft-like part (2), the outer inclined-plane (2.1) of ring packing is connected with at the inner circular part of upper sealing plane (2.2), the large mouth on the outer inclined-plane (2.1) of ring packing upward, the little mouth down on the outer inclined-plane (2.1) of ring packing, has annular radial projection (2.3) at the middle part on the outer inclined-plane (2.1) of ring packing;
And the outer inclined-plane (2.1) of ring packing coordinates with inclined-plane in ring packing (1.1), upper sealing plane (2.2) coordinates with lower seal plane (1.2);
It is characterized in that: between the sealed department and the sealed department of shaft-like part (2) of band orifice (1), be provided with sealing gasket (3); In described ring packing, inclined-plane (1.1) are inner conical surface; Described annular radial projection (2.3) is arc surface projection.
2. end face labyrinth as claimed in claim 1 static seal structure, is characterized in that: described sealing gasket (3) is made up of plastic material.
3. end face labyrinth as claimed in claim 1 static seal structure, is characterized in that: described band orifice (1) is plate part, shaft-like part or block part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410172358.2A CN103953731B (en) | 2014-04-26 | 2014-04-26 | End face labyrinth static seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410172358.2A CN103953731B (en) | 2014-04-26 | 2014-04-26 | End face labyrinth static seal structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103953731A CN103953731A (en) | 2014-07-30 |
| CN103953731B true CN103953731B (en) | 2016-03-16 |
Family
ID=51331046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410172358.2A Expired - Fee Related CN103953731B (en) | 2014-04-26 | 2014-04-26 | End face labyrinth static seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103953731B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1282611A (en) * | 1969-10-25 | 1972-07-19 | Rolls Royce | Improvements in or relating to sealing arrangement |
| CN86104543A (en) * | 1985-07-26 | 1987-04-01 | A·W·彻斯特顿公司 | The labyrinth ring seals that has housing mounting means |
| CN201112257Y (en) * | 2007-08-21 | 2008-09-10 | 北京合纵科技股份有限公司 | SF6 load switch operation shaft dynamic seal assembly |
| CN201348041Y (en) * | 2008-12-22 | 2009-11-18 | 奇瑞汽车股份有限公司 | Wheel hub bearing dust-proof sealing device |
| CN202612191U (en) * | 2012-05-17 | 2012-12-19 | 安徽三联泵业股份有限公司 | Centrifugal pump packing sealing structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09119800A (en) * | 1995-10-26 | 1997-05-06 | Mitsubishi Heavy Ind Ltd | Tube separating apparatus |
-
2014
- 2014-04-26 CN CN201410172358.2A patent/CN103953731B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1282611A (en) * | 1969-10-25 | 1972-07-19 | Rolls Royce | Improvements in or relating to sealing arrangement |
| CN86104543A (en) * | 1985-07-26 | 1987-04-01 | A·W·彻斯特顿公司 | The labyrinth ring seals that has housing mounting means |
| CN201112257Y (en) * | 2007-08-21 | 2008-09-10 | 北京合纵科技股份有限公司 | SF6 load switch operation shaft dynamic seal assembly |
| CN201348041Y (en) * | 2008-12-22 | 2009-11-18 | 奇瑞汽车股份有限公司 | Wheel hub bearing dust-proof sealing device |
| CN202612191U (en) * | 2012-05-17 | 2012-12-19 | 安徽三联泵业股份有限公司 | Centrifugal pump packing sealing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103953731A (en) | 2014-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103791089B (en) | A kind of steel tube end part sealing-ring and tightness system | |
| CN203309102U (en) | Oil sleeve external-pressure collapse test sealing device | |
| CN203670792U (en) | Elastic filler and valve using the filler | |
| CN202883546U (en) | Compound sealing structure for air cylinder end face | |
| CN103953731A (en) | End-face labyrinth static sealing structure | |
| CN202852251U (en) | Flange sealing component | |
| CN203757161U (en) | Packing box and valve connecting and sealing structure | |
| CN214699272U (en) | Valve with double self-sealing function | |
| CN203549095U (en) | Stop valve | |
| CN201547232U (en) | Leak-proof sealing gasket | |
| CN203836197U (en) | Sealing ring with openings | |
| CN106322023A (en) | Elastic resetting unthreaded sealing flange | |
| CN211574511U (en) | Sealing plug cover | |
| CN203784359U (en) | Combined pressing ring sealed diaphragm valve | |
| CN103712058B (en) | The differential interface that is tightly connected of roof pressing type | |
| CN203374781U (en) | Sealing ring of motor of dust collector | |
| CN205896490U (en) | Elasticity valve flange that resets | |
| CN203009825U (en) | High-efficiency anti-seepage sealing rubber ring | |
| CN209959872U (en) | Inner Seal Vibration Isolator | |
| CN202017726U (en) | Sealing device for air spring seam allowance | |
| CN210890066U (en) | Metal sealing ring gasket | |
| CN202100707U (en) | Rubber gasket | |
| CN205879407U (en) | Sealed calorimeter | |
| CN204152758U (en) | The sealing configuration of piston compressor high pressure valve opening | |
| CN202972166U (en) | Multiple sealed bellows globe valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20200426 |