CN107339436A - A kind of combination oil seal - Google Patents
A kind of combination oil seal Download PDFInfo
- Publication number
- CN107339436A CN107339436A CN201710687408.4A CN201710687408A CN107339436A CN 107339436 A CN107339436 A CN 107339436A CN 201710687408 A CN201710687408 A CN 201710687408A CN 107339436 A CN107339436 A CN 107339436A
- Authority
- CN
- China
- Prior art keywords
- oil seal
- inner oil
- skeleton
- seal
- sealing lip
- 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
Links
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
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
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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
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of combination oil seal, including outer oil seal and inner oil seal, outer oil seal includes outer oil seal skeleton, outer oil seal rubber, outer oil seal sealing lip and outer oil seal spring, outer oil seal sealing lip is arranged on the outside of outer oil seal skeleton, the external rings of outer oil seal sealing lip are around setting outer oil seal spring, inner oil seal includes inner oil seal skeleton one, inner oil seal skeleton two, inner oil seal spring, inner oil seal primary seal lip, inner oil seal secondary sealing lip one, inner oil seal secondary sealing lip two and the inner oil seal rubber bodies two with rotary shaft in interference fit, bottom convex tendon is provided with along the inner oil seal rubber bodies one of the bottom of inner oil seal skeleton one, the top of inner oil seal skeleton two is provided with the bending part of skeleton two, inner oil seal rubber bodies two are located at the inner surface of inner oil seal skeleton two, the inner oil seal primary seal lip is circumferentially positioned at the outside of inner oil seal spring.The oil sealing can effectively prevent the erosion of the impurity such as muddy water, silt, dust, extend the service life of oil sealing, and sealing effectiveness is excellent, improve the operating efficiency of machine.
Description
Technical field
The present invention relates to a kind of oil sealing, specifically a kind of combination oil seal.
Background technology
Oil sealing (oil seal) is the custom appellation of general seal, is exactly briefly the sealing of lubricating oil.It is to use
Carry out the mechanical organ of oil sealing fat (oil is most common liquid substance in transmission system, also refers to the meaning of in general liquid substance),
It isolates the part for needing to lubricate in transmission parts with output part, is unlikely to allow oil seepage.Static seal and dynamic sealing
(general to move back and forth) is with seal oil sealing.
The operation in the more working environment of dust, therefore rotary shaft gets rusty easily for a long time of traditional tractor, causes point
Oil sealing sealing poor reliability on dynamic case, have a strong impact on the operating efficiency and benefit of machinery.
The content of the invention
It is an object of the invention to provide a kind of combination oil seal, the oil sealing can effectively prevent the impurity such as muddy water, silt, dust
Erosion, extend the service life of oil sealing, sealing effectiveness is excellent, improves the operating efficiency of machine.
To achieve the above object, the technical solution adopted by the present invention is：A kind of combination oil seal, including outer oil seal and interior oil
Envelope, outer oil seal include outer oil seal skeleton, outer oil seal rubber, outer oil seal sealing lip and outer oil seal spring, and outer oil seal sealing lip is set
In the outside of outer oil tight skeleton, for the external rings of outer oil seal sealing lip around outer oil seal spring is set, inner oil seal includes inner oil seal skeleton
First, inner oil seal skeleton two, inner oil seal spring, inner oil seal primary seal lip, inner oil seal secondary sealing lip one, the and of inner oil seal secondary sealing lip two
Inner oil seal rubber bodies two with rotary shaft in interference fit, bottom is provided with along the inner oil seal rubber bodies one of the bottom of inner oil seal skeleton one
Portion's convex tendon, the top of inner oil seal skeleton two are provided with the bending part of skeleton two, and inner oil seal rubber bodies two are located at inner oil seal skeleton two
Inner surface, the inner oil seal primary seal lip are circumferentially positioned at the outside of inner oil seal spring.
Scheme as a further improvement on the present invention, the outer surface of the inner oil seal skeleton one is by the ripple of inner oil seal rubber bodies one
Line face and the mating surface of inner oil seal skeleton one composition.
Scheme as a further improvement on the present invention, one end of the inner oil seal rubber bodies two are provided with Double-directional back flow liner, institute
Double-directional back flow liner is stated to be distributed in " eight " word gradual change shape from center to both sides.
Scheme as a further improvement on the present invention, between inner oil seal primary seal lip and inner oil seal the secondary sealing lip one,
Sky between inner oil seal secondary sealing lip one and inner oil seal secondary sealing lip two and between inner oil seal secondary sealing lip two and bottom convex tendon
Lubricating oil is set in gap.
The beneficial effects of the invention are as follows：For the oil sealing using the combination of two special-shaped oil sealings, being formed has multiple oil seal lip
Combination oil seal, greatly improve the sealing property of oil sealing, the setting of bottom convex tendon, can both play a part of installation positioning,
The frictional force between inner oil seal skeleton can be reduced, it can in addition contain play dust-proof effect, improves the operating efficiency of machine
The erosion of the impurity such as muddy water, silt, dust can be effectively prevented, extends the service life of oil sealing, sealing effectiveness is excellent, improves
The operating efficiency of machine.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure, 1. outer oil seals, 2. inner oil seals, 3. outer oil seal skeletons, 4. outer oil seal rubber, 5. outer oil seal sealing lips, outside 6.
Oil seal spring, 7. inner oil seal skeletons one, 8. inner oil seal skeletons two, 9. inner oil seal springs, 10. inner oil seal primary seal lips, oil in 11.
Seal secondary sealing lip one, 12. inner oil seal secondary sealing lips two, 13. inner oil seal rubber bodies two, 14. inner oil seal rubber bodies one, 15. bottoms
Convex tendon, 16. bending parts, 17. Double-directional back flow liners.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of combination oil seal, including outer oil seal 1 and inner oil seal 2, outer oil seal 1 includes outer oil seal skeleton 3, outer
Oil sealing rubber 4, outer oil seal sealing lip 5 and outer oil seal spring 6, outer oil seal sealing lip 5 are arranged on the outside of outer oil seal skeleton 3, outside
The external rings of oil sealing sealing lip 5 around set outer oil seal spring 6, inner oil seal 2 include inner oil seal skeleton 1, inner oil seal skeleton 28,
Inner oil seal spring 9, inner oil seal primary seal lip 10, inner oil seal secondary sealing lip 1, inner oil seal secondary sealing lip 2 12 and and rotary shaft
In the inner oil seal rubber bodies 2 13 of interference fit, bottom is provided with along the inner oil seal rubber bodies 1 of the bottom of inner oil seal skeleton 1
Convex tendon 15, the top of inner oil seal skeleton 28 are provided with the bending part 16 of skeleton two, and inner oil seal rubber bodies 2 13 are located at inner oil seal skeleton
28 inner surface, the inner oil seal primary seal lip 10 are circumferentially positioned at the outside of inner oil seal spring 9.
Scheme as a further improvement on the present invention, the outer surface of the inner oil seal skeleton 1 is by inner oil seal rubber bodies 1
Corrugated surface and the mating surface of inner oil seal skeleton 1 composition.
Scheme as a further improvement on the present invention, one end of the inner oil seal rubber bodies 2 13 are provided with Double-directional back flow liner
17, the Double-directional back flow liner 17 is distributed from center to both sides in " eight " word gradual change shape.
Scheme as a further improvement on the present invention, the inner oil seal primary seal lip 10 and inner oil seal secondary sealing lip 1 it
Between, between inner oil seal secondary sealing lip 1 and inner oil seal secondary sealing lip 2 12 and inner oil seal secondary sealing lip 2 12 is convex with bottom
Lubricating oil is set in space between muscle 15；So as to reduce the friction between inner oil seal secondary sealing lip and inner oil seal skeleton 2 12.
In use, due between outer oil seal 1 and inner oil seal 2 in interference fit, so as to realize outer oil seal 1 and inner oil seal 2
Connection, so as to prevent foreign matter from invading；The setting of bottom convex tendon 15, it can both play a part of installation positioning, can also subtract
Few frictional force between inner oil seal skeleton, it can in addition contain play dust-proof effect, the corrugated surface 18 of inner oil seal rubber bodies one ensures
The outside of inner oil seal 2 is sealed with outer oil seal 1, and the mating surface of inner oil seal skeleton 1 improved between inner oil seal 2 and outer oil seal 1
Tensile strength；The bending part 16 of inner oil seal skeleton two can play a part of oil baffle disc, reduce lubricating oil and its impurity is internally oily
The interference of main lip is sealed, in a word, the oil sealing efficiently solves the erosion of the impurity such as muddy water, silt, dust, extends oil sealing
Service life, improve the sealing effectiveness and stability of oil sealing；Oil sealing is formed with multiple using the combination of two special-shaped oil sealings
The combination oil seal of oil seal lip, the sealing property of oil sealing is greatly improved, improve the operating efficiency of machine.
Claims (4)
1. a kind of combination oil seal, it is characterised in that including outer oil seal and inner oil seal, the outer oil seal includes outer oil seal skeleton, outer
Oil sealing rubber, outer oil seal sealing lip and outer oil seal spring, the outer oil seal sealing lip are arranged on the outside of outer oil seal skeleton, outer oil
The external rings of sealing lip are sealed around outer oil seal spring is set, inner oil seal includes inner oil seal skeleton one, inner oil seal skeleton two, inner oil seal bullet
Spring, inner oil seal primary seal lip, inner oil seal secondary sealing lip one, inner oil seal secondary sealing lip two and the interior oil with rotary shaft in interference fit
Rubber bodies two are sealed, bottom convex tendon, the top of inner oil seal skeleton two are provided with along the inner oil seal rubber bodies one of the bottom of inner oil seal skeleton one
Portion is provided with the bending part of skeleton two, and inner oil seal rubber bodies two are located at the inner surface of inner oil seal skeleton two, the inner oil seal primary seal
Lip ring is around setting in the outside of interior oil seal spring.
2. a kind of combination oil seal according to claim 1, it is characterised in that the outer surface of the inner oil seal skeleton one is by interior
The corrugated surface of oil sealing rubber bodies one and the mating surface of inner oil seal skeleton one composition.
A kind of 3. combination oil seal according to claim 1 or 2, it is characterised in that one end of the inner oil seal rubber bodies two
Provided with Double-directional back flow liner, the Double-directional back flow liner is distributed from center to both sides in " eight " word gradual change shape.
4. a kind of combination oil seal according to claim 3, it is characterised in that the inner oil seal primary seal lip and inner oil seal pair
Between sealing lip one, between inner oil seal secondary sealing lip one and inner oil seal secondary sealing lip two and inner oil seal secondary sealing lip two and bottom
Lubricating oil is set in space between portion's convex tendon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710687408.4A CN107339436A (en) | 2017-08-11 | 2017-08-11 | A kind of combination oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710687408.4A CN107339436A (en) | 2017-08-11 | 2017-08-11 | A kind of combination oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107339436A true CN107339436A (en) | 2017-11-10 |
Family
ID=60216373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710687408.4A Pending CN107339436A (en) | 2017-08-11 | 2017-08-11 | A kind of combination oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107339436A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119652A (en) * | 2017-12-25 | 2018-06-05 | 陈旭明 | A kind of labyrinth |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6102409A (en) * | 1996-06-26 | 2000-08-15 | Nok Corporation | Sealing device |
| CN2521446Y (en) * | 2002-01-30 | 2002-11-20 | 青岛基珀密封工业有限公司 | Combined oil seal |
| JP2007182957A (en) * | 2006-01-10 | 2007-07-19 | Nok Corp | Sealing device |
| CN201382155Y (en) * | 2009-02-25 | 2010-01-13 | 青岛开世密封工业有限公司 | Axially moving combined oil seal |
| CN201851662U (en) * | 2010-11-25 | 2011-06-01 | 青岛开世密封工业有限公司 | Bidirectional backflow oil seal with replaceable lip |
| CN202691052U (en) * | 2012-07-20 | 2013-01-23 | 青岛开世密封工业有限公司 | Combined and assembled type oil seal |
| CN205841760U (en) * | 2016-07-25 | 2016-12-28 | 青岛海力威新材料科技股份有限公司 | A kind of Novel box-type oil sealing |
-
2017
- 2017-08-11 CN CN201710687408.4A patent/CN107339436A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6102409A (en) * | 1996-06-26 | 2000-08-15 | Nok Corporation | Sealing device |
| CN2521446Y (en) * | 2002-01-30 | 2002-11-20 | 青岛基珀密封工业有限公司 | Combined oil seal |
| JP2007182957A (en) * | 2006-01-10 | 2007-07-19 | Nok Corp | Sealing device |
| CN201382155Y (en) * | 2009-02-25 | 2010-01-13 | 青岛开世密封工业有限公司 | Axially moving combined oil seal |
| CN201851662U (en) * | 2010-11-25 | 2011-06-01 | 青岛开世密封工业有限公司 | Bidirectional backflow oil seal with replaceable lip |
| CN202691052U (en) * | 2012-07-20 | 2013-01-23 | 青岛开世密封工业有限公司 | Combined and assembled type oil seal |
| CN205841760U (en) * | 2016-07-25 | 2016-12-28 | 青岛海力威新材料科技股份有限公司 | A kind of Novel box-type oil sealing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119652A (en) * | 2017-12-25 | 2018-06-05 | 陈旭明 | A kind of labyrinth |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171110 |
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| WD01 | Invention patent application deemed withdrawn after publication |