CN106763779A - A kind of mechanical seal ring with many zigzag helicla flutes - Google Patents
A kind of mechanical seal ring with many zigzag helicla flutes Download PDFInfo
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- CN106763779A CN106763779A CN201611141162.2A CN201611141162A CN106763779A CN 106763779 A CN106763779 A CN 106763779A CN 201611141162 A CN201611141162 A CN 201611141162A CN 106763779 A CN106763779 A CN 106763779A
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- mechanical seal
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- 238000007789 sealing Methods 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000009987 spinning Methods 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/406—Sealings between relatively-moving surfaces by means of fluid by at least one pump
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
The present invention relates to a kind of mechanical seal ring with many zigzag helicla flutes, multiple helicla flutes being distributed along end face even circumferential are provided with sealing ring end face, each helicla flute groove root is zigzag.Invention enhances the dynamic pressure effect of mechanical seal ring end face fluid, the scope for producing dynamic pressure effect is increased, so that mechanical seal forms the fluid film of stabilization in operation process, end-face friction degree reduces, and service life is greatly extended.
Description
Technical field
The present invention relates to a kind of mechanical seal ring with many zigzag helicla flutes, belong to technical field of mechanical, it is special
Not Shi Yongyu the various rotating machinery shaft ends such as pump, compressor, reactor end face seal.
Background technology
Mechanical seal, is such as used for the dry gas seals and the upstream pumping mechanical seal for sealing liquid of sealing gas, with
Its unique performance advantage is used widely on the high speed rotating machinery such as centrifugal compressor, blower fan, reactor.Machinery is close
Envelope is by opening up the dynamic pressure groove that molded line is helix, straight line or circular arc line on seal face, with spiral in all kinds of dynamic pressure grooves
Groove is the most typical.When rotating ring rotates, gas medium is pumped into seal face using dynamic pressure groove stronger dynamic and static pressure effect, entered
The fluid of seal face is obstructed boosting at groove root, produces certain fluid dynamic and static pressures to push end face open, so that machinery is close
Envelope is able to maintain that under conditions of one layer of micron order air film noncontact runs, but helicla flute widely used in the industry at present
Mechanical seal still suffers from the problems such as slip is high, bearing capacity finite sum fluid film rigidity of fluid film is not big enough, failure accidents
Happen occasionally.
The content of the invention
It is an object of the invention to provide a kind of hydrodynamic effect is strong, fluid film bearing capacity and fluid film rigidity it is big,
The low mechanical seal ring with many zigzag helicla flutes of slip.
The technical scheme is that：
A kind of mechanical seal ring with many zigzag helicla flutes, the side of sealing ring end face is upstream, opposite side for high-pressure side
For low-pressure side is downstream, 3 ~ 20 helicla flutes being distributed along end face even circumferential are provided with sealing ring end face, helicla flute is opened on
End face high-pressure side, each helicla flute groove root is zigzag, and sealing ring end face unslotted region forms seals dam, platform groove ratio（Not
The ratio between the excircle arc length of slot area and the excircle arc length of slot area）a 2/ a 1=0.1~5；
The contour line of each helicla flute is constituted by the equal log spiral of helical angle, helical angleα0 ° of ＜ ∣ of scopeα∣ ＜
90°；
The sawtooth number of each helicla flute groove root is 2 ~ 10；
Groove depth is 2 ~ 100 μm.
The construction process of single many zigzag helicla flutes is：With logarithmic spiral contour linel 1On the basis of line, and withOIt is circle
The heart, turns clockwise respectivelyφ、2×φ......(n-1)×φAngle obtains aiding in log spirall 2、l 3... and logarithm
Helical wheel profilel n, wherein（In formula,NNumber by opening helicla flute on sealing ring end face,nIt is helicla flute
The sawtooth number of groove root）, andl 1、l 2.....l nWith the round arc of groove rootl gIntersection point be respectivelyO 1、O 2......O n；Logarithm spiral shell
Spinning roller profilel 1WithO 1For the center of circle turns clockwiseθAngle obtains aiding in log spirall 1"；Logarithmic spiral contour linel nWithO nIt is circle
Heart rotate counterclockwiseγAngle obtains auxiliary screw linel n', wherein, it is clipped in logarithmic spiral contour linel 1Withl nMiddle auxiliary logarithm
Helixl 2、l 3......l n-1Respectively withO 2、O 3......O n-1It is center of circle rotate counterclockwiseγAngle obtains aiding in log spirall 2'、l 3'......l n-1', aid in log spirall 2、l 3......l n-1Again withO 2、O 3......O n-1For the center of circle it is clockwise when
RotationθAngle obtains aiding in log spirall 2"、l 3"......l n-1"；Auxiliary log spirall 1" and auxiliary log spirall 2' intersect at point A1, aid in log spirall 2" and auxiliary log spirall 3' intersect at point A2, by that analogy, aid in logarithm
Helixl n-1" and auxiliary log spirall n' intersect at point An-1；The contour line of many sawtooth pattern helicla flutes is by linel 1, pointO 1, linel 1", point A1, linel 2', pointO 2, linel 2", point A2, linel 3', pointO 3, linel 3" ... .. points An-1, linel n', pointO n, linel nSurrounded；
0°<∣θ∣≤90 °, 0 °<∣γ∣<18°。
It is of the present invention it is a kind of there are many zigzag Spiral Groove Mechanical Seal rings, can using electrochemical corrosion, electric spark,
The techniques such as Laser Processing processing end face micro forming, machining accuracy is detected using non-contact optical profilers.
Mechanical seal ring with many zigzag helicla flutes of the present invention can as the rotating ring in mechanical seal structure or
Stationary ring, or rotating ring and stationary ring are simultaneously described sealing ring.
The beneficial effects of the invention are as follows：
Many zigzag helicla flutes are opened up in the sealing ring surface of mechanical seal, stronger compression effectiveness can be produced to fluid, so that
With more preferably hydrodynamic effect so that the bearing capacity and antijamming capability being sealed under high-speed working condition are stronger, effectively
The lubricating status of mechanical seal end surface are improved, the fretting wear degree of seal face is reduced, the work of seal is extended
In the life-span, it is ensured that the operation steady in a long-term of equipment, eliminate the potential safety hazard of equipment.
Brief description of the drawings
Fig. 1 isnThe schematic diagram of many zigzag Spiral Groove Mechanical Seal rings when=3；
Fig. 2 isnThe construction process schematic diagram of many one grooves of zigzag Spiral Groove Mechanical Seal ring when=3；
Fig. 3 isnOne sheave profile schematic diagram of many zigzag Spiral Groove Mechanical Seal rings when=3；
Fig. 4 A and 4B arenOne sheave profile schematic diagram of many zigzag Spiral Groove Mechanical Seal rings when=9.
Specific embodiment
Embodiment 1
As shown in figure 1, a kind of mechanical seal ring with many zigzag helicla flutes, on the side of sealing ring end face is for high-pressure side
Trip, opposite side is downstream for low-pressure side, and 10 helicla flutes being distributed along end face even circumferential, helicla flute are provided with sealing ring end face
End face high-pressure side is opened on, each helicla flute groove root is zigzag, and the sawtooth number of each helicla flute groove root is 3；It is close
Seal ring end face unslotted region forms seals dam, platform groove ratio（The excircle arc length in unslotted region and the excircle of slot area
The ratio between arc length）a 2/ a 1=1；Groove depth is 5 μm；
The contour line of each helicla flute is constituted by the equal log spiral of helical angle, helical angleα=15°。
The construction process of single many zigzag helicla flutes is：With logarithmic spiral contour linel 1On the basis of line, and withOIt is circle
The heart, turns clockwise 9 °, 18 ° and obtains aiding in log spiral respectivelyl 2With logarithmic spiral contour linel 3, andl 1、l 2、l 3With groove root
Round arcl gIntersection point be respectivelyO 1、O 2、O 3；Logarithmic spiral contour linel 1WithO 1For the center of circle turns clockwiseθIt is right that angle obtains auxiliary
Number helixl 1"；Logarithmic spiral contour linel 3WithO 3It is center of circle rotate counterclockwiseγAngle obtains auxiliary screw linel 3', aid in logarithm
Helixl 2WithO 2It is center of circle rotate counterclockwiseγAngle obtains aiding in log spirall 2', aid in log spirall 2Again withO 2For
The center of circle turns clockwiseθAngle obtains aiding in log spirall 2"；Auxiliary log spirall 1" and auxiliary log spirall 2' phase
Meet at point A1, aid in log spirall 2" and auxiliary log spirall 3' intersect at point A2；The contour line of three zigzag helicla flutes
By linel 1, pointO 1, linel 1", point A1, linel 2', pointO 2, linel 2", point A2, linel 3', pointO 3, linel 3Surrounded, as shown in Figure 2,3.Its
In,θ=30 °,γ=18°。
Compare without serrated helicoid groove with equivalent：If without in serrated helicoid groove sealing ring and three zigzag spiral groove seal rings
FootpathR i=20mm, groove root radiusR g=27mm, external diameterR o=30mm, helical angleα=15 °, slot number is 10, and balance thickness ish b=10 μm,
Groove depth ish=5μm.And sealed medium densityρ=1.293kg/m3, viscosityμ=1.76×10-6Pas, sealing ring rotating speedω=
1000rad/s, outer radius pressurep o=501325Pa, inner radius pressurep i=101325Pa。
Without serrated helicoid groove sealing ring face opening powerF oIt is 493N, leakage rateS tIt is 4.66 × 10-2kg/s；Three zigzag
Spiral groove seal ring face opening powerF oIt is 512N, leakage rateS tIt is 4.52 × 10-2kg/s；As can be seen that three zigzag spirals
Groove sealing ring than there is stronger bearing capacity without serrated helicoid groove sealing ring, this effectively improves the profit of mechanical seal end surface
Sliding state, reduces the fretting wear degree of seal face, extends the working life of seal.Also, three zigzag spirals
Groove sealing ring is smaller than the slip without serrated helicoid groove sealing ring, and this explanation three zigzag helicla flute under identical working condition is close
Seal ring is more beneficial for the sealing of medium.
Embodiment 2
A kind of mechanical seal ring with many zigzag helicla flutes, the side of sealing ring end face is upstream, opposite side for high-pressure side
For low-pressure side is downstream, 20 helicla flutes being distributed along end face even circumferential are provided with sealing ring end face, helicla flute is opened on end
Face high-pressure side, each helicla flute groove root is zigzag, and the sawtooth number of each helicla flute groove root is 9；Sealing ring end face
Unslotted region forms seals dam, platform groove ratio（The ratio between the excircle arc length in unslotted region and the excircle arc length of slot area）a 2/ a 1=1；Groove depth is 30 μm；
The contour line of each helicla flute is constituted by the equal log spiral of helical angle, helical angleα=30°。
The construction process of single many zigzag helicla flutes is：With logarithmic spiral contour linel 1On the basis of line, and withOIt is circle
The heart, turns clockwise 1.125 °, 2.25 °, 3.375 °, 4.5 °, 5.625 °, 6.75 °, 7.875 °, 9 ° and obtains aiding in logarithm respectively
Helixl 2、l 3、l 4、l 5、l 6、l 7、l 8With logarithmic spiral contour linel 9, andl 1、l 2、l 3、l 4、l 5、l 6、l 7、l 8、l 9It is round with groove root
Arcl gIntersection point be respectivelyO 1、O 2、O 3、O 4、O 5、O 6、O 7、O 8、O 9；Logarithmic spiral contour linel 1WithO 1For the center of circle turns clockwiseθ
Angle obtains aiding in log spirall 1"；Logarithmic spiral contour linel 9WithO 9It is center of circle rotate counterclockwiseγAngle obtains auxiliary screw linel 9', aid in log spirall 2、l 3、l 4、l 5、l 6、l 7、l 8WithO 2、O 3、O 4、O 5、O 6、O 7、O 8It is center of circle rotate counterclockwiseγAngle obtains
To auxiliary log spirall 2'、l 3'、l 4'、l 5'、l 6'、l 7'、l 8', aid in log spirall 2、l 3、l 4、l 5、l 6、l 7、l 8Again withO 2、O 3、O 4、O 5、O 6、O 7、O 8To be rotated when the center of circle is clockwiseθAngle obtains aiding in log spirall 2"、l 3"、l 4"、l 5"、l 6"、l 7"、l 8"；Auxiliary log spirall 1" and auxiliary log spirall 2' intersect at point A1, aid in log spirall 2" and auxiliary
Log spirall 3' intersect at point A2, aid in log spirall 3" and auxiliary log spirall 4' intersect at point A3, aid in logarithm
Helixl 4" and auxiliary log spirall 5' intersect at point A4, aid in log spirall 5" and auxiliary log spirall 6' intersecting
In point A5, aid in log spirall 6" and auxiliary log spirall 7' intersect at point A6, aid in log spirall 7" and auxiliary is right
Number helixl 8' intersect at point A7, aid in log spirall 8" and auxiliary log spirall 9' intersect at point A8；Nine sawtooth pattern spiral shells
The contour line of spin slot is by linel 1, pointO 1, linel 1", point A1, linel 2', pointO 2, linel 2", point A2, linel 3', pointO 3, linel 3", point A3, linel 4', pointO 4, linel 4", point A4, linel 5', pointO 5, linel 5", point A5, linel 6', pointO 6, linel 6", point A6, linel 7', pointO 7, linel 7"、
Point A7, linel 8', pointO 8, linel 8", point A8, linel 9', pointO 9, linel 9Surrounded.Wherein,θ=15 °,γ=5°.Such as Fig. 4 A and 4B institutes
Show.
Compare without serrated helicoid groove with equivalent：If without in serrated helicoid groove sealing ring and nine zigzag spiral groove seal rings
FootpathR i=20mm, groove root radiusR g=27mm, external diameterR o=30mm, helical angleα=30 °, slot number is 20, and balance thickness ish b=10 μm,
Groove depth ish=30μm.And sealed medium densityρ=1000kg/m3, viscosityμ=8.01×10-4Pas, sealing ring rotating speedω=
300rad/s, outer radius pressurep o=501325Pa, inner radius pressurep i=101325Pa。
Without serrated helicoid groove sealing ring face opening powerF oIt is 290N, leakage rateS tIt is 2.323 × 10-3kg/s；Nine sawtooth
Shape spiral groove seal ring face opening powerF oIt is 301N, leakage rateS tIt is 2.227 × 10-3kg/s；As can be seen that nine zigzag spiral shells
Spin slot sealing ring than there is stronger bearing capacity without serrated helicoid groove sealing ring, this effectively improves mechanical seal end surface
Lubricating status, reduce the fretting wear degree of seal face, extend the working life of seal.Also, nine zigzag spiral shells
Spin slot sealing ring is smaller than the slip without serrated helicoid groove sealing ring, this explanation nine zigzag helicla flute under identical working condition
Sealing ring is more beneficial for the sealing of medium.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel are according to the thinkable equivalent technologies mean of present inventive concept institute.
Claims (8)
1. a kind of mechanical seal ring with many zigzag helicla flutes, the side of sealing ring end face is upstream for high-pressure side, another
Side is downstream for low-pressure side, and multiple helicla flutes being distributed along end face even circumferential are provided with sealing ring end face, and helicla flute is opened on
End face high-pressure side, each helicla flute groove root is zigzag, and sealing ring end face unslotted region forms seals dam；Each helicla flute
Contour line constituted by the equal log spiral of helical angle.
2. mechanical seal ring according to claim 1, it is characterised in that sealing ring end face open the number of helicla flute for 3 ~
20.
3. mechanical seal ring according to claim 1, it is characterised in that the sawtooth number of each helicla flute groove root is 2 ~
10.
4. mechanical seal ring according to claim 1, it is characterised in that sealing ring end face platform groove ratioa 2/ a 1=0.1~5。
5. mechanical seal ring according to claim 1, it is characterised in that constitute the log spiral of spiral sheave profile
Helical angleα0 ° of ＜ ∣ of scopeα90 ° of ∣ ＜.
6. mechanical seal ring according to claim 1, it is characterised in that spiral groove deep is 2 ~ 100 μm.
7. mechanical seal ring according to claim 1, it is characterised in that the construction process of single many zigzag helicla flutes
For：With logarithmic spiral contour linel 1On the basis of line, and withOIt is the center of circle, turns clockwise respectivelyφ、2×φ......(n-1)×φAngle obtains aiding in log spirall 2、l 3... and logarithmic spiral contour linel n, wherein, in formula,N
Number by opening helicla flute on sealing ring end face,nIt is the sawtooth number of helicla flute groove root；Andl 1、l 2.....l nWith groove root
Round arcl gIntersection point be respectivelyO 1、O 2......O n；Logarithmic spiral contour linel 1WithO 1For the center of circle turns clockwiseθAngle obtains auxiliary
Help log spirall 1"；Logarithmic spiral contour linel nWithO nIt is center of circle rotate counterclockwiseγAngle obtains auxiliary screw linel n', its
In, it is clipped in logarithmic spiral contour linel 1Withl nMiddle auxiliary log spirall 2、l 3......l n-1Respectively withO 2、O 3......O n-1It is center of circle rotate counterclockwiseγAngle obtains aiding in log spirall 2'、l 3'......l n-1', aid in logarithm spiral shell
Spin linel 2、l 3......l n-1Again withO 2、O 3......O n-1To be rotated when the center of circle is clockwiseθAngle obtains aiding in log spirall 2"、l 3"......l n-1"；Auxiliary log spirall 1" and auxiliary log spirall 2' intersect at point A1, aid in log spirall 2"
With auxiliary log spirall 3' intersect at point A2, by that analogy, aid in log spirall n-1" and auxiliary log spirall n' phase
Meet at point An-1；The contour line of many sawtooth pattern helicla flutes is by linel 1, pointO 1, linel 1", point A1, linel 2', pointO 2, linel 2", point A2, linel 3', pointO 3, linel 3" ... .. points An-1, linel n', pointO n, linel nSurrounded.
8. mechanical seal ring according to claim 7, it is characterised in that 0 °<∣θ∣≤90 °, 0 °<∣γ∣<18°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141162.2A CN106763779B (en) | 2016-12-12 | 2016-12-12 | A kind of mechanical seal ring with more zigzag helicla flutes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611141162.2A CN106763779B (en) | 2016-12-12 | 2016-12-12 | A kind of mechanical seal ring with more zigzag helicla flutes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106763779A true CN106763779A (en) | 2017-05-31 |
| CN106763779B CN106763779B (en) | 2019-04-12 |
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ID=58881105
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611141162.2A Active CN106763779B (en) | 2016-12-12 | 2016-12-12 | A kind of mechanical seal ring with more zigzag helicla flutes |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370483A (en) * | 2019-08-27 | 2019-10-25 | 青岛科技大学 | A kind of closed-smelting machine rotor sealing structure |
| CN113661330A (en) * | 2019-04-09 | 2021-11-16 | 伊格尔工业股份有限公司 | Sliding component |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2166279Y (en) * | 1993-07-23 | 1994-05-25 | 石油大学(华东) | Sealing moving ring for gas medium |
| CN1118851A (en) * | 1993-08-03 | 1996-03-20 | 约翰起重机有限公司 | Improved non-contacting mechanical face seal |
| CN1401924A (en) * | 2002-09-20 | 2003-03-12 | 徐万福 | Helical flute and face mechanial seal composed of angular microflute group |
| CN201521636U (en) * | 2009-08-20 | 2010-07-07 | 浙江工业大学 | Gas face seal structure of three-dimensional shaped groove with bottom similar to feather texture |
| CN103090005A (en) * | 2013-02-04 | 2013-05-08 | 北京理工大学 | Spiral distributed multi-hole end face rotary sealing ring used on vehicle |
| CN103090006A (en) * | 2013-02-04 | 2013-05-08 | 北京理工大学 | Spiral groove rotary sealing ring with cone-shaped cross section and used on vehicle |
| CN203939991U (en) * | 2014-05-29 | 2014-11-12 | 浙江工业大学 | Dark link chute dynamic pressure type end surface mechanical sealing structure |
| CN206361151U (en) * | 2016-12-12 | 2017-07-28 | 昆明理工大学 | A kind of mechanical seal ring with many zigzag helicla flutes |
-
2016
- 2016-12-12 CN CN201611141162.2A patent/CN106763779B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2166279Y (en) * | 1993-07-23 | 1994-05-25 | 石油大学(华东) | Sealing moving ring for gas medium |
| CN1118851A (en) * | 1993-08-03 | 1996-03-20 | 约翰起重机有限公司 | Improved non-contacting mechanical face seal |
| CN1401924A (en) * | 2002-09-20 | 2003-03-12 | 徐万福 | Helical flute and face mechanial seal composed of angular microflute group |
| CN201521636U (en) * | 2009-08-20 | 2010-07-07 | 浙江工业大学 | Gas face seal structure of three-dimensional shaped groove with bottom similar to feather texture |
| CN103090005A (en) * | 2013-02-04 | 2013-05-08 | 北京理工大学 | Spiral distributed multi-hole end face rotary sealing ring used on vehicle |
| CN103090006A (en) * | 2013-02-04 | 2013-05-08 | 北京理工大学 | Spiral groove rotary sealing ring with cone-shaped cross section and used on vehicle |
| CN203939991U (en) * | 2014-05-29 | 2014-11-12 | 浙江工业大学 | Dark link chute dynamic pressure type end surface mechanical sealing structure |
| CN206361151U (en) * | 2016-12-12 | 2017-07-28 | 昆明理工大学 | A kind of mechanical seal ring with many zigzag helicla flutes |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113661330A (en) * | 2019-04-09 | 2021-11-16 | 伊格尔工业股份有限公司 | Sliding component |
| CN113661330B (en) * | 2019-04-09 | 2023-09-05 | 伊格尔工业股份有限公司 | Sliding member |
| CN110370483A (en) * | 2019-08-27 | 2019-10-25 | 青岛科技大学 | A kind of closed-smelting machine rotor sealing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106763779B (en) | 2019-04-12 |
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