CN208268408U - A kind of multiple lip seal device - Google Patents
A kind of multiple lip seal device Download PDFInfo
- Publication number
- CN208268408U CN208268408U CN201820734265.8U CN201820734265U CN208268408U CN 208268408 U CN208268408 U CN 208268408U CN 201820734265 U CN201820734265 U CN 201820734265U CN 208268408 U CN208268408 U CN 208268408U
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- Prior art keywords
- lip
- seal
- primary seal
- sealing
- primary
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Abstract
The utility model discloses a kind of multiple lip seal device, including rubber seal ring, rubber seal ring circumference, which axially extends, sets static seal surface, and the metallic framework that section is "-" type is embedded between rubber seal ring and static seal surface；Dynamic sealing component is equipped on the inside of rubber seal ring, the dynamic sealing component includes primary seal lip and secondary sealing lip, and primary seal lip and secondary sealing lip outer portion are equipped with annular groove, set spring in annular groove；The secondary sealing lip lip is semicircular structure, and the primary seal lip includes the first primary seal lip and the second primary seal lip；It is respectively equipped with shallow twill at first primary seal lip, the second primary seal lip and secondary sealing lip lip, forms oil drive back thread.Oil-sealing arrangement provided by the utility model, the design of secondary sealing lip semicircle, which can reduce friction, prevents lip from deforming；Oil drive back thread is set, when axis work, pumping effect can be formed in lip, so that the oil pump for flowing to oil sealing air side is returned to the oily side of oil sealing, while reducing temperature rise.
Description
Technical field
The utility model relates to a kind of multiple lip seal devices, belong to sealing element technical field.
Background technique
Oil sealing is used to the mechanical organ of oil sealing, the component for needing to lubricate in transmission parts is isolated with power output component for it,
It is unlikely to allow oil seepage, while also obstructs extraneous dust and enter and needing lubricating component, plays internal oil sealing, it is externally dust-proof
Effect is widely used in the industries such as household electrical appliance, automobile engine, chemical industry.Oil sealing lip rubs with axis when use, when
Between it is long be easily deformed, influence oil sealing, dust-proof and other effects.
Utility model content
Purpose: in order to overcome the deficiencies in the prior art, the utility model provides a kind of multiple lip seal device.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the utility model is:
A kind of multiple lip seal device, including rubber seal ring, rubber seal ring circumference are set along rubber seal ring is axially extending
Static seal surface is embedded with the metallic framework that section is "-" type between rubber seal ring and static seal surface；Rubber seal ring
Inside is equipped with dynamic sealing component, and the dynamic sealing component includes primary seal lip and secondary sealing lip, primary seal lip and secondary sealing
Lip outer portion is equipped with annular groove, sets spring in annular groove；The secondary sealing lip lip is semicircular structure, and the master is close
Sealing lip includes the first primary seal lip and the second primary seal lip；First primary seal lip, the second primary seal lip and secondary sealing lip lip
It is respectively equipped with shallow twill at mouthful, forms oil drive back thread.
It further, is left-handed oil drive back thread along the oil drive back thread that the first primary seal lip and the second primary seal lip are arranged, along
Secondary sealing lip is provided that dextrorotation oil drive back thread.
Further, the annular diameters of second primary seal lip are greater than the annular diameters of the first primary seal lip.
Further, it is main to be greater than first less than the annular diameters of the second primary seal lip for the annular diameters of the secondary sealing lip
The annular diameters of sealing lip.
Further, the metallic framework, spring are all made of carbon steel material and are made.
Further, the portion of medial side that the rubber seal ring is connect with static seal surface is equipped with positioning and carves tooth.
The utility model has the advantages that a kind of multiple lip seal device provided by the utility model, oil sealing ability is can be improved in double main lip designs, secondary
Lip design can effective dust, while secondary sealing lip lip use semicircular structure, can effectively reduce friction prevents lip from deforming；If
Left-handed oil drive back thread and dextrorotation oil drive back thread are counted, when axis work, pumping effect is formed in lip, makes the oil pump for flowing to oil sealing air side
The oily side of oil sealing is returned to, while temperature rise can be reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
As shown in Figure 1, a kind of multiple lip seal device, including rubber seal ring 1, rubber seal ring circumference is along rubber seal ring
It is axially extending to be equipped with static seal surface 2, the metal that section is "-" type is embedded between rubber seal ring 1 and static seal surface 2
Skeleton 3；Dynamic sealing component is equipped on the inside of rubber seal ring 1, the dynamic sealing component includes primary seal lip and secondary sealing lip,
Primary seal lip and 6 outer portion of secondary sealing lip are equipped with annular groove, and spring 7 is set in annular groove；6 lip of secondary sealing lip is
Semicircular structure, can reduce friction prevents lip from deforming；The primary seal lip includes the first primary seal lip 4 and the second primary seal lip
5；It is respectively equipped with shallow twill at first primary seal lip, the second primary seal lip and secondary sealing lip lip, forms oil drive back thread, works as axis
When work, pumping effect is formed in lip, so that the oil pump for flowing to oil sealing air side is returned to the oily side of oil sealing, while reducing temperature rise.
It is left-handed oil drive back thread 8 along the oil drive back thread that the first primary seal lip 4 and the second primary seal lip 5 are arranged, along secondary sealing
Lip 6 is provided that dextrorotation oil drive back thread 9.
The internal diameter diameter of second primary seal lip 5 is greater than the annular diameters of the first primary seal lip 4；Secondary sealing lip 6 it is interior
Ring diameter less than the second primary seal lip 5 annular diameters, greater than the annular diameters of the first primary seal lip 4.
The metallic framework 3, spring 7 are all made of carbon steel material and are made.Metallic framework, which can increase rigidity, keeps oil sealing light
Easily-deformable, spring provides the certain binding force of oil sealing lip and extends the oil sealing service life.
The rubber seal ring 1 is equipped with positioning with 2 coupling part medial surface of static seal surface and carves tooth 10, is easy to use process
In oil sealing is positioned.
The above is only the preferred embodiment of the utility model, it should be pointed out that: for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of multiple lip seal device, it is characterised in that: including rubber seal ring, rubber seal ring circumference is along rubber seal annulate shaft
Static seal surface is set to extension, the metallic framework that section is "-" type is embedded between rubber seal ring and static seal surface；Rubber
Dynamic sealing component is equipped on the inside of glue sealing ring, the dynamic sealing component includes primary seal lip and secondary sealing lip, primary seal lip
It is equipped with annular groove with secondary sealing lip outer portion, sets spring in annular groove；The secondary sealing lip lip is semicircular structure,
The primary seal lip includes the first primary seal lip and the second primary seal lip；First primary seal lip, the second primary seal lip and pair
It is respectively equipped with shallow twill at sealing lip lip, forms oil drive back thread.
2. multiple lip seal device according to claim 1, it is characterised in that: along the first primary seal lip and the second primary seal
The oil drive back thread of lip setting is left-handed oil drive back thread, is provided that dextrorotation oil drive back thread along secondary sealing lip.
3. multiple lip seal device according to claim 1, it is characterised in that: the annular diameters of second primary seal lip are big
In the annular diameters of the first primary seal lip.
4. multiple lip seal device according to claim 1, it is characterised in that: the annular diameters of the secondary sealing lip are less than
The annular diameters of two primary seal lips, greater than the annular diameters of the first primary seal lip.
5. multiple lip seal device according to claim 1, it is characterised in that: the metallic framework, spring are all made of carbon steel
Material is made.
6. multiple lip seal device according to claim 1, it is characterised in that: the rubber seal ring and static seal surface connect
The portion of medial side connect is equipped with positioning and carves tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820734265.8U CN208268408U (en) | 2018-05-17 | 2018-05-17 | A kind of multiple lip seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820734265.8U CN208268408U (en) | 2018-05-17 | 2018-05-17 | A kind of multiple lip seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208268408U true CN208268408U (en) | 2018-12-21 |
Family
ID=64681729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820734265.8U Active CN208268408U (en) | 2018-05-17 | 2018-05-17 | A kind of multiple lip seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208268408U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488387A (en) * | 2018-05-17 | 2018-09-04 | 昆山健博密封件科技有限公司 | A kind of multiple lip seal device |
-
2018
- 2018-05-17 CN CN201820734265.8U patent/CN208268408U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488387A (en) * | 2018-05-17 | 2018-09-04 | 昆山健博密封件科技有限公司 | A kind of multiple lip seal device |
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