CN109139926A - A kind of dynamic pressure type end face seal structure of impact resisting vibrating - Google Patents
A kind of dynamic pressure type end face seal structure of impact resisting vibrating Download PDFInfo
- Publication number
- CN109139926A CN109139926A CN201811286179.6A CN201811286179A CN109139926A CN 109139926 A CN109139926 A CN 109139926A CN 201811286179 A CN201811286179 A CN 201811286179A CN 109139926 A CN109139926 A CN 109139926A
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- China
- Prior art keywords
- ring
- sealing ring
- groove
- rubber pad
- sealing
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Classifications
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- 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
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3464—Mounting of the seal
- F16J15/3476—Means for minimising vibrations of the slip-ring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
A kind of dynamic pressure type end face seal structure of impact resisting vibrating, belongs to mechanical end face sealing structure design field.At least one sealing ring is the sealing ring of impact resisting vibrating in the rotating ring or stationary ring；The sealing ring of the impact resisting vibrating includes building ring, support ring, fan-shaped rubber pad, spring, the first sealing ring, the second sealing ring；The side of the support ring in axial direction offers annular groove.A kind of dynamic pressure type end face seal structure of impact resisting vibrating provided by the invention, it is built in inside sealing ring using rubber pad and spring assembly to absorb and alleviate impact vibration, it can preferably adapt to that mobile, operating condition is changeable or the harsh working environment of frequent start-stop rotating machine sets, it is good with dynamic tracing ability, it is adaptable, the advantages that fluid film is stable, long service life.
Description
Technical field
The present invention relates to mechanical end face sealing structure design fields, and in particular to a kind of dynamic pressure type of impact resisting vibrating
End face seal structure, the axle end sealing device especially suitable for various high-speed rotating machines.
Background technique
Dynamic pressure type end face seal has numerous performance advantages such as low leakage, long-life, low-power consumption, is widely used in being centrifuged
The axle end sealing device of the rotating machineries such as compressor, centrifugal pump.But with the further development of modern industry, it is desirable that rotating machinery
Higher parameter Operating Condition is adapted to, especially under high-speed condition, shafting vibration is violent, especially existing in start and stop or variable working condition
Significantly under impact vibration, the sealing ring of existing dynamic pressure type end face seal is easily crashed, and is ultimately caused seal failure, is caused economy
Loss or serious accident.
Summary of the invention
The object of the invention is to solve the problems, such as that foreign impacts vibration ability deficiency is resisted in existing dynamic pressure type end face seal,
It is proposed a kind of dynamic pressure type end face seal structure of impact resisting vibrating.
To achieve the above object, the present invention is to be achieved through the following technical solutions:
A kind of dynamic pressure type end face seal structure of impact resisting vibrating, rotating ring and stationary ring including end face seal；It is characterized by:
At least one sealing ring is the sealing ring of impact resisting vibrating in the rotating ring or stationary ring；The sealing of the impact resisting vibrating
Ring includes building ring, support ring, fan-shaped rubber pad, spring, the first sealing ring, the second sealing ring；The building ring is matched therewith
Pair sealing ring at least one ring seal face on open up dynamic pressure groove, the outside diameter setting anti-rotation of the building ring is convex
It rises；The side of the support ring in axial direction offers annular groove, on the annular groove bottom surface again along the circumferential direction
It is even to open up several fan grooves, opened up respectively on the cylinder wall surface of annular groove outer diameter and inner diameter side the first o-ring groove and
Second o-ring groove, the support ring open up being opened up between anti-rotation protrusion on the anchor ring of outer diameter of annular groove side
The anti-rotation groove of gap cooperation；The center position of the sector rubber pad opens up circular through hole, between the sector rubber pad passes through
Gap cooperation is successively laid in the fan groove, and the spring is sequentially placed into the circular through hole on the fan-shaped rubber pad, institute
The height for stating spring is identical as the fan-shaped height of rubber pad；First sealing ring is installed on first o-ring groove
In, second sealing ring is installed in second o-ring groove, and the building ring is inserted into the branch by clearance fit
Until the back side of the building ring is pressed on the surface of the fan-shaped rubber pad in the annular groove of pushing out ring, pass through the first sealing ring
And second the extruding of sealing ring realize the sealing between building ring and support ring, and pass through the anti-rotation protrusion and anti-rotation groove
The limitation relatively rotated between building ring and support ring is realized in cooperation.
Preferably, end face seal, during steady running, the sealing ring of the impact resisting vibrating is by extraneous axis
When acting on to the pressure in direction, the compression deformation of the axial direction of the sector rubber pad and the spring is 50 ~ 500 μm.
The invention has the following advantages: a kind of dynamic pressure type end face seal knot of impact resisting vibrating provided by the invention
Structure is built in inside sealing ring to absorb and alleviate impact vibration using rubber pad and spring assembly, can preferably adapt to it is mobile,
Operating condition is changeable or the harsh working environment of frequent start-stop rotating machine sets, has dynamic tracing ability good, adaptable, fluid film is steady
Calmly, the advantages that long service life.
Detailed description of the invention
Fig. 1 is the three-dimensional perspective view of the explosion of structure of the invention；
Fig. 2 is the assembly cross-sectional view of structure of the invention；
Fig. 3 is the shaft side figure of the building ring of structure of the invention；
Fig. 4 is the shaft side figure of the support ring of structure of the invention；
Fig. 5 is the top view of the support ring of structure of the invention；
Fig. 6 is the shaft side figure of the fan-shaped rubber pad of structure of the invention.
In figure: 1- building ring, 11- dynamic pressure groove, 12- anti-rotation protrusion, 2- support ring, 21- fan groove, 22- anti-rotation groove,
The first o-ring groove of 23-, the second o-ring groove of 24-, 3- sector rubber pad, 31- circular through hole, 4- spring, 5- first are close
Seal, the second sealing ring of 6-.
Specific embodiment
Technical solution of the present invention is described in detail with reference to the accompanying drawing.
Referring to Fig.1 shown in-Fig. 6, a kind of dynamic pressure type end face seal structure of impact resisting vibrating of the present invention, including end face seal
Rotating ring and stationary ring；It is characterized by:
At least one sealing ring is the sealing ring of impact resisting vibrating in the rotating ring or stationary ring；The sealing of the impact resisting vibrating
Ring includes building ring 1, support ring 2, fan-shaped rubber pad 3, spring 4, the first sealing ring 5, the second sealing ring 6；The building ring 1 or
Dynamic pressure groove 11 is opened up in paired sealing ring on the seal face of at least one ring, the outside diameter of the building ring 1 is set
Set anti-rotation protrusion 12；The side of the support ring 2 in axial direction offers annular groove, and on the annular groove bottom surface edge again
Circumferencial direction uniformly opens up several fan grooves 21, opens up first respectively on the cylinder wall surface of annular groove outer diameter and inner diameter side
O-ring groove 23 and the second o-ring groove 24, the support ring 2 open up opening on the anchor ring of outer diameter for annular groove side
If the anti-rotation groove 22 with raised 12 clearance fits of the anti-rotation；The center position of the sector rubber pad 3 opens up round logical
Hole 31, the sector rubber pad 3 are successively laid in the fan groove 21 by clearance fit, and the spring 4 is sequentially placed into institute
It states in the circular through hole 31 on fan-shaped rubber pad 3, the height of the spring 4 is identical as the fan-shaped height of rubber pad 3；It is described
First sealing ring 5 is installed in first o-ring groove 23, and second sealing ring 6 is installed on the second sealing ring ditch
In slot 24, the building ring 1 is inserted into the back in the annular groove of the support ring 2 until the building ring 1 by clearance fit
Face pressure on the surface of the fan-shaped rubber pad, by the extruding of the first sealing ring 5 and the second sealing ring 6 realize building ring 1 with
Sealing between support ring 2, and building ring 1 and support ring 2 are realized by the anti-rotation protrusion 12 and the cooperation of anti-rotation groove 22
Between the limitation that relatively rotates.
Specifically, end face seal, during steady running, the sealing ring of the impact resisting vibrating is by extraneous axial
When the pressure effect in direction, the compression deformation of the axial direction of the sector rubber pad 3 and the spring 4 is 50 ~ 500 μm.
The course of work of the invention:
A kind of dynamic pressure type end face seal of impact resisting vibrating of the present invention during the work time, when fluid is along sealing ring circumferential direction high velocity stream
When dynamic, fluid squeezes to form dynamic pressure effect at the slot root of dynamic pressure groove, so that so that seal face is unfolded into one layer has centainly
The fluid film of the micron order thickness of rigidity and damping characteristic, when shafting is there are impact vibration or variable working condition occurs, fluid film film
Change dramatically, rigidity and damping characteristic are supported fan-shaped rubber pad 3, the spring of building ring 1 also by change dramatically by thickness jointly
4, the variation for experiencing fluid film rigidity and damping is immediately passed through deformation and makes adaptability tune by the first sealing ring 5, the second sealing ring 6
It is whole, to guarantee the dynamic stability of film thickness.Rotating ring and stationary ring is caused to send out if being affected by foreign impacts vibration or variable working condition
When raw collision, the common fan-shaped rubber pad 3 for supporting building ring 1, spring 4, the first sealing ring 5, the second sealing ring 6 are again by maximum limit
Degree absorbs the impact energy that collision generates, and weakens the harm that collision generates, sealing ring is avoided to crash.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention
Scheme all belong to the scope of protection of the present invention.
Claims (2)
1. a kind of dynamic pressure type end face seal structure of impact resisting vibrating, rotating ring and stationary ring including end face seal；It is characterized by:
At least one sealing ring is the sealing ring of impact resisting vibrating in the rotating ring or stationary ring；The sealing ring packet of the impact resisting vibrating
Include building ring (1), support ring (2), fan-shaped rubber pad (3), spring (4), the first sealing ring (5), the second sealing ring (6)；It is described
Dynamic pressure groove (11) are opened up on the seal face of at least one sealing ring in building ring (1) or paired sealing ring, it is described
The outside diameter setting anti-rotation of building ring (1) is raised (12)；It is recessed that the side of the support ring (2) in axial direction offers annular
Slot is along the circumferential direction uniformly opened up several fan grooves (21) again on the annular groove bottom surface, the annular groove outer diameter and interior
The first o-ring groove (23) and the second o-ring groove (24), the support ring (2) are opened up on the cylinder wall surface of diameter side respectively
Open up the anti-rotation groove (22) of annular groove side opened up on the anchor ring of outer diameter with raised (12) clearance fit of the anti-rotation；
It is described sector rubber pad (3) center position open up circular through hole (31), it is described sector rubber pad (3) by clearance fit according to
Secondary to be laid in the fan groove (21), the spring (4) is sequentially placed into the circular through hole (31) on the fan-shaped rubber pad (3)
Interior, the height of the spring (4) is identical as the height of the fan-shaped rubber pad (3)；First sealing ring (5) is installed on described
In first o-ring groove (23), second sealing ring (6) is installed in second o-ring groove (24), the work
Ring (1) by clearance fit be inserted into the annular groove of the support ring (2) until the back side of the building ring (1) be pressed in it is described
On the surface of fan-shaped rubber pad, building ring (1) and support are realized by the extruding of the first sealing ring (5) and the second sealing ring (6)
Sealing between ring (2), and building ring (1) and support are realized by the cooperation of the anti-rotation raised (12) and anti-rotation groove (22)
The limitation relatively rotated between ring (2).
2. the dynamic pressure type end face seal structure of impact resisting vibrating as described in claim 1, it is characterised in that: end face seal is steady
Determine in operation process, the sealing ring of the impact resisting vibrating is when the pressure by extraneous axial direction acts on, the sector rubber
The compression deformation of the axial direction of rubber mat (3) and the spring (4) is 50 ~ 500 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286179.6A CN109139926B (en) | 2018-10-31 | 2018-10-31 | Dynamic pressure type end face sealing structure resistant to impact vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286179.6A CN109139926B (en) | 2018-10-31 | 2018-10-31 | Dynamic pressure type end face sealing structure resistant to impact vibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109139926A true CN109139926A (en) | 2019-01-04 |
| CN109139926B CN109139926B (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811286179.6A Active CN109139926B (en) | 2018-10-31 | 2018-10-31 | Dynamic pressure type end face sealing structure resistant to impact vibration |
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| Country | Link |
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| CN (1) | CN109139926B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094507A (en) * | 2019-04-22 | 2019-08-06 | 南安市商宏机械科技有限公司 | A kind of water seal arrangement of water supply and drainage pump |
| CN110725364A (en) * | 2019-10-24 | 2020-01-24 | 马鞍山楚锐科技信息咨询有限公司 | Relay water tank |
| CN110822084A (en) * | 2019-11-19 | 2020-02-21 | 潍柴动力股份有限公司 | Sealing member and engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526608Y (en) * | 2002-03-12 | 2002-12-18 | 江苏亚太水工机械集团公司 | Self-pressure coupled sealer |
| US20050035554A1 (en) * | 2003-05-28 | 2005-02-17 | Tom Roberts | Damper device for mechanical seals |
| CN101532568A (en) * | 2009-03-24 | 2009-09-16 | 宁波东联密封件有限公司 | Self-balanced mechanical seal |
| CN104179974A (en) * | 2014-07-21 | 2014-12-03 | 浙江工业大学 | Axial vibration resistance type mechanical sealing device |
| CN204677666U (en) * | 2015-05-28 | 2015-09-30 | 储成霞 | A kind of efficient damping device |
| CN204921983U (en) * | 2015-08-05 | 2015-12-30 | 河南柴油机重工有限责任公司 | Novel gasket |
-
2018
- 2018-10-31 CN CN201811286179.6A patent/CN109139926B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2526608Y (en) * | 2002-03-12 | 2002-12-18 | 江苏亚太水工机械集团公司 | Self-pressure coupled sealer |
| US20050035554A1 (en) * | 2003-05-28 | 2005-02-17 | Tom Roberts | Damper device for mechanical seals |
| CN101532568A (en) * | 2009-03-24 | 2009-09-16 | 宁波东联密封件有限公司 | Self-balanced mechanical seal |
| CN104179974A (en) * | 2014-07-21 | 2014-12-03 | 浙江工业大学 | Axial vibration resistance type mechanical sealing device |
| CN204677666U (en) * | 2015-05-28 | 2015-09-30 | 储成霞 | A kind of efficient damping device |
| CN204921983U (en) * | 2015-08-05 | 2015-12-30 | 河南柴油机重工有限责任公司 | Novel gasket |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094507A (en) * | 2019-04-22 | 2019-08-06 | 南安市商宏机械科技有限公司 | A kind of water seal arrangement of water supply and drainage pump |
| CN110094507B (en) * | 2019-04-22 | 2020-09-15 | 安徽绿环泵业有限公司 | Water seal device of water supply and drainage pump |
| CN110725364A (en) * | 2019-10-24 | 2020-01-24 | 马鞍山楚锐科技信息咨询有限公司 | Relay water tank |
| CN110822084A (en) * | 2019-11-19 | 2020-02-21 | 潍柴动力股份有限公司 | Sealing member and engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109139926B (en) | 2020-02-21 |
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