CN109139916A - A kind of flexible compensation formula marine screw shaft sealing device - Google Patents
A kind of flexible compensation formula marine screw shaft sealing device Download PDFInfo
- Publication number
- CN109139916A CN109139916A CN201811343566.9A CN201811343566A CN109139916A CN 109139916 A CN109139916 A CN 109139916A CN 201811343566 A CN201811343566 A CN 201811343566A CN 109139916 A CN109139916 A CN 109139916A
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- flexible
- ring
- end cap
- compensation
- 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.)
- Pending
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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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
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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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
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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
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of flexible compensation formula marine screw shaft sealing devices, including stern tube shaft, connection end cap, connection ring flat-plate, elastic sealing ring, axial elasticity body, radial elastomeric, flexible sealing ring, flexible driving elastomer；The present invention is additionally arranged compensation annular groove on the other end of elastic sealing ring, the flexible driving elastomer of installation and flexible sealing ring in compensation annular groove, flexible sealing ring is compressed outward by flexible driving elastomer, so that flexible sealing ring is pressed on the medial surface of connection end cap, so after with stern tube shaft axial micro-displacement occurs for elastic sealing ring, when i.e. the other end of elastic sealing ring is departing from the medial surface of connection end cap, flexible driving meeting elastomer compresses flexible sealing ring outward, so that flexible sealing ring is pressed on the medial surface of connection end cap, realize axial sealing compensation, smart structural design.
Description
Technical field
The present invention relates to a kind of flexible compensation formula marine screw shaft sealing devices.
Background technique
Currently, marine screw shaft sealing device generally comprises stern tube shaft, end cover, sealing ring；The sealing ring is fastened on
On stern tube shaft, sealing ring compresses mechanism by elasticity and is connected on the medial surface of end cover, so seals stern tube shaft by sealing ring
And end cover, but in stern tube shaft long-term use process, stern tube shaft can be subjected to displacement axially, stern tube shaft will drive sealing ring progress
Displacement, so that the degree that compresses of sealing ring and end cover be made to change, causes sealing ring not have very well end cover
Sealing effect.
Summary of the invention
In view of the deficiencies of the prior art mentioned above, problems solved by the invention are as follows: a kind of axial stretching compensation, close is provided
Seal a kind of good flexible compensation formula marine screw shaft sealing device of effect.
To solve the above problems, the technical solution adopted by the present invention is as follows:
A kind of flexible compensation formula marine screw shaft sealing device, including stern tube shaft, connection end cap, connection ring flat-plate, elastic sealing ring, axial direction
Elastomer, radial elastomeric, flexible sealing ring, flexible driving elastomer；The connection end cap is mounted on one end four of stern tube shaft
All outsides；The connection ring flat-plate adapter sleeve, which connects, to be mounted on the outside of the surrounding of stern tube shaft；The elastic sealing ring is tightly sleeved
On stern tube shaft；Structure, axial elasticity body are socketed on stern tube shaft the axial elasticity body in a ring；The axial elasticity body is located at
It connects between ring flat-plate and elastic sealing ring；Axial elasticity body one end elasticity compresses an end face of elastic sealing ring；It is described
Elastic sealing ring other end be pressed on connection end cap medial surface；The outside of the elastic sealing ring is installed by multiple radial directions
Elastomer；Described radial elastomeric one end is fixed in connection end cap, and the radial elastomeric other end is pressed on elastic sealing ring
Lateral surface on；The other end of the elastic sealing ring is equipped with compensation annular groove；Installation in the compensation annular groove
Flexible driving elastomer and flexible sealing ring；The flexible driving elastomer is located at the inside of compensation annular groove；Described stretches
Contracting driving elastomer compresses flexible sealing ring outward；The flexible sealing ring is pressed on the medial surface of connection end cap.
Further, the flexible sealing ring is made of polytetrafluoroethylene material.
Further, the outside of the elastic sealing ring is equipped with annular mounting groove；Multiple radial elastomerics it is another
One end is pressed in the annular mounting groove on the lateral surface of elastic sealing ring.
Further, the elastic sealing ring is made of rubber material.
Beneficial effects of the present invention
The present invention is additionally arranged compensation annular groove on the other end of elastic sealing ring, the flexible driving of installation in compensation annular groove
Elastomer and flexible sealing ring compress flexible sealing ring by flexible driving elastomer, so that flexible sealing ring outward
It is pressed on the medial surface of connection end cap, it is so after with stern tube shaft axial micro-displacement occurs for elastic sealing ring, i.e., elastic
When the other end of sealing ring is departing from the medial surface of connection end cap, flexible driving meeting elastomer compresses flexible sealing outward
Ring realizes axial sealing compensation, smart structural design so that flexible sealing ring is pressed on the medial surface of connection end cap；
The present invention compresses axially elastic sealing ring by axial elasticity body, so that elastic sealing ring is fitted tightly over connection end cap
Medial surface on, then by multiple radial elastomerics by elastic sealing ring progress radial compression be fitted on stern tube shaft side so that
It is of the invention radial and axial all to have obtained sealing performance.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is partial enlargement structural representation of the present invention.
Specific embodiment
The content of present invention is described in further detail with reference to the accompanying drawing.
As illustrated in fig. 1 and 2, a kind of flexible compensation formula marine screw shaft sealing device, including stern tube shaft 1, connection end cap 4, connection
Ring flat-plate 2, elastic sealing ring 6, axial elasticity body 3, radial elastomeric 5, flexible sealing ring 8, flexible driving elastomer 7；Described
Connection end cap 4 is mounted on the outside of one end surrounding of stern tube shaft 1；The connection ring flat-plate 2 fastening socket is mounted on outside the surrounding of stern tube shaft 1
Side；The elastic sealing ring 6 is tightly sleeved on stern tube shaft 1；The axial elasticity body 3 structure in a ring, axial elasticity body 3
It is socketed on stern tube shaft 1；The axial elasticity body 3 is located between connection ring flat-plate 2 and elastic sealing ring 6；The axial elasticity
3 one end elasticity of body compresses an end face of elastic sealing ring 6；6 other end of elastic sealing ring is pressed in connection end cap 4
On side；The outside of the elastic sealing ring 6 is installed by multiple radial elastomerics 5；Described 5 one end of radial elastomeric is fixed on
In connection end cap 4,5 other end of radial elastomeric is pressed on the lateral surface of elastic sealing ring 6.The elastic sealing ring 6
Other end is equipped with compensation annular groove 62；The flexible driving elastomer 7 of installation and flexible sealing in the compensation annular groove 62
Ring 8；The flexible driving elastomer 7 is located at the inside of compensation annular groove 62；The flexible driving elastomer 7 supports outward
Pressure stretch contracting sealing ring 8；The flexible sealing ring 8 is pressed on the medial surface of connection end cap 4.
As illustrated in fig. 1 and 2, further, the flexible sealing ring 8 is made of polytetrafluoroethylene material.Further preferably,
The outside of the elastic sealing ring 6 is equipped with annular mounting groove 61；The other end of multiple radial elastomerics 5 is pressed on bullet
In annular mounting groove 61 on the lateral surface of property sealing ring 6.Further preferably, the elastic sealing ring 6 is by rubber material system
At.
The present invention is additionally arranged compensation annular groove 62 on the other end of elastic sealing ring 6, pacifies in compensation annular groove 62
The flexible driving elastomer 7 of dress and flexible sealing ring 8 compress flexible sealing ring 8 by flexible driving elastomer 7, in turn outward
So that flexible sealing ring 8 is pressed on the medial surface of connection end cap 4, so when elastic sealing ring 6 with stern tube shaft 1 occur it is axial
After micro-displacement, i.e., when the other end of elastic sealing ring 6 is departing from the medial surface of connection end cap 4, stretch driving elastomer 7
Flexible sealing ring 8 can be compressed outward, so that flexible sealing ring 8 is pressed on the medial surface of connection end cap 4, realized axial
Sealing compensation, smart structural design；The present invention compresses axially elastic sealing ring 6 by axial elasticity body 3, so that elastic
Sealing ring 6 is fitted tightly on the medial surface of connection end cap 4, then elastic sealing ring 6 is carried out diameter by multiple radial elastomerics 5
It is fitted on 1 side of stern tube shaft to extruding, radial and axial has all obtained sealing performance so that of the invention.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of flexible compensation formula marine screw shaft sealing device, which is characterized in that including stern tube shaft, connection end cap, connection ring flat-plate, bullet
Property sealing ring, axial elasticity body, radial elastomeric, flexible sealing ring, flexible driving elastomer；The connection end cap is mounted on
On the outside of one end surrounding of stern tube shaft；The connection ring flat-plate adapter sleeve, which connects, to be mounted on the outside of the surrounding of stern tube shaft；The elastic packing
Ring is tightly sleeved on stern tube shaft；Structure, axial elasticity body are socketed on stern tube shaft the axial elasticity body in a ring；The axis
It is located between connection ring flat-plate and elastic sealing ring to elastomer；Axial elasticity body one end elasticity compresses elastic sealing ring
One end face；The elastic sealing ring other end is pressed on connection end cap medial surface；The outside of the elastic sealing ring
Multiple radial elastomerics are installed；Described radial elastomeric one end is fixed in connection end cap, and the radial elastomeric other end compresses
On the lateral surface of elastic sealing ring；The other end of the elastic sealing ring is equipped with compensation annular groove；The compensation
The flexible driving elastomer of installation and flexible sealing ring in annular groove；The flexible driving elastomer is located at the interior of compensation annular groove
Side；The flexible driving elastomer compresses flexible sealing ring outward；The flexible sealing ring is pressed on connection end cap
On medial surface.
2. flexible compensation formula marine screw shaft sealing device according to claim 1, which is characterized in that the flexible sealing
Ring is made of polytetrafluoroethylene material.
3. flexible compensation formula marine screw shaft sealing device according to claim 1, which is characterized in that the elastic packing
The outside of ring is equipped with annular mounting groove；The other end of multiple radial elastomerics is pressed on the lateral surface of elastic sealing ring
Annular mounting groove in.
4. flexible compensation formula marine screw shaft sealing device according to claim 1, which is characterized in that the elastic packing
Ring is made of rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343566.9A CN109139916A (en) | 2018-11-13 | 2018-11-13 | A kind of flexible compensation formula marine screw shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343566.9A CN109139916A (en) | 2018-11-13 | 2018-11-13 | A kind of flexible compensation formula marine screw shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109139916A true CN109139916A (en) | 2019-01-04 |
Family
ID=64805725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811343566.9A Pending CN109139916A (en) | 2018-11-13 | 2018-11-13 | A kind of flexible compensation formula marine screw shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109139916A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692341A (en) * | 2020-06-12 | 2020-09-22 | 东台市岳东橡胶密封件厂 | Telescopic sealing element |
| CN112377699A (en) * | 2020-12-21 | 2021-02-19 | 江苏开创检测技术有限公司 | Horizontal floating metal pipeline connects |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6145843A (en) * | 1998-10-19 | 2000-11-14 | Stein Seal Company | Hydrodynamic lift seal for use with compressible fluids |
| CN2935052Y (en) * | 2006-08-10 | 2007-08-15 | 林奇文 | Rotary kiln bidirectional sealing device |
| CN102410374A (en) * | 2011-11-22 | 2012-04-11 | 四川理工学院 | Sealing structure of tapered slip ring with self-compensating property |
| CN102996801A (en) * | 2012-11-16 | 2013-03-27 | 天津摩根坤德高新科技发展有限公司 | Sealing structure of calcinator |
| CN105065820A (en) * | 2015-08-08 | 2015-11-18 | 济南大学 | Connecting device for eliminating three-direction vibrations of pipeline interface |
| CN107289135A (en) * | 2017-08-08 | 2017-10-24 | 东台市岳东橡胶密封件厂 | A kind of compensation marine screw shaft sealing device of axial elasticity |
| CN107289137A (en) * | 2017-08-08 | 2017-10-24 | 东台市岳东橡胶密封件厂 | A kind of marine screw shaft sealing device |
| CN107387771A (en) * | 2017-08-17 | 2017-11-24 | 东台市岳东橡胶密封件厂 | One kind slides squash type marine screw shaft sealing device |
| CN206708374U (en) * | 2017-04-19 | 2017-12-05 | 北京航天普霖科技有限公司 | A kind of express pump rotary seal structure |
| CN108757668A (en) * | 2018-06-22 | 2018-11-06 | 江苏浩博塑业有限公司 | A kind of horizontal clamping formula pipe joint |
-
2018
- 2018-11-13 CN CN201811343566.9A patent/CN109139916A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6145843A (en) * | 1998-10-19 | 2000-11-14 | Stein Seal Company | Hydrodynamic lift seal for use with compressible fluids |
| CN2935052Y (en) * | 2006-08-10 | 2007-08-15 | 林奇文 | Rotary kiln bidirectional sealing device |
| CN102410374A (en) * | 2011-11-22 | 2012-04-11 | 四川理工学院 | Sealing structure of tapered slip ring with self-compensating property |
| CN102996801A (en) * | 2012-11-16 | 2013-03-27 | 天津摩根坤德高新科技发展有限公司 | Sealing structure of calcinator |
| CN105065820A (en) * | 2015-08-08 | 2015-11-18 | 济南大学 | Connecting device for eliminating three-direction vibrations of pipeline interface |
| CN206708374U (en) * | 2017-04-19 | 2017-12-05 | 北京航天普霖科技有限公司 | A kind of express pump rotary seal structure |
| CN107289135A (en) * | 2017-08-08 | 2017-10-24 | 东台市岳东橡胶密封件厂 | A kind of compensation marine screw shaft sealing device of axial elasticity |
| CN107289137A (en) * | 2017-08-08 | 2017-10-24 | 东台市岳东橡胶密封件厂 | A kind of marine screw shaft sealing device |
| CN107387771A (en) * | 2017-08-17 | 2017-11-24 | 东台市岳东橡胶密封件厂 | One kind slides squash type marine screw shaft sealing device |
| CN108757668A (en) * | 2018-06-22 | 2018-11-06 | 江苏浩博塑业有限公司 | A kind of horizontal clamping formula pipe joint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692341A (en) * | 2020-06-12 | 2020-09-22 | 东台市岳东橡胶密封件厂 | Telescopic sealing element |
| CN111692341B (en) * | 2020-06-12 | 2022-02-22 | 东台市岳东橡胶密封件厂 | Telescopic sealing element |
| CN112377699A (en) * | 2020-12-21 | 2021-02-19 | 江苏开创检测技术有限公司 | Horizontal floating metal pipeline connects |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |