CN202301956U - Combined sealing ring for MBA shaft - Google Patents
Combined sealing ring for MBA shaft Download PDFInfo
- Publication number
- CN202301956U CN202301956U CN2011204124664U CN201120412466U CN202301956U CN 202301956 U CN202301956 U CN 202301956U CN 2011204124664 U CN2011204124664 U CN 2011204124664U CN 201120412466 U CN201120412466 U CN 201120412466U CN 202301956 U CN202301956 U CN 202301956U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- mba
- lip
- ring
- circle
- 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.)
- Expired - Fee Related
Links
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- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
The utility model relates to a combined sealing ring for a shaft, which comprises a Y-shaped lip sealing ring and an O-shaped sealing ring. The O-shaped sealing ring is inlaid in a groove of the Y-shaped lip sealing ring. The sealing rings are combined, the problem that an existing product is easy to leak along with change of temperature and under the condition of low pressure or vacuum, and an excellent sealing effect is realized.
Description
Technical field
The utility model relates to the Sealing field, is specifically related to a kind of elastic compensation Y shape combined seal ring.
Background technique
Along with domestic economy constantly develops; The national life level improves constantly; The industrial automatization of numerous domestic industrial and mining enterprise further improves; And sealed product performer key player in industrial automation, the quality of sealed product quality plays key effect aspect the fluid dynamic transmission in industrial automation.Particularly in concerning the national great type equipment of national economy, stable, the quality of sealed product performance reliable and to the tolerance of various flowing mediums all is very important.Simultaneously, in the great at home type key equipment, adopt the Sealing of developed countries import; Not only cost an arm and a leg; And the arrival cycle is long, during the apparatus maintenance transformation, causes heavy losses to enterprise, causes severe contamination to environment; Destroy natural, ecological, and imported product can not be dealt with problems sometimes.
At present, maximum Sealing of using on the market is an O shape circle, and extrusion-deformation generation prestressing force reached sealing effect when it leaned on assembling.Its feature is: simple in structure, withstand voltage height, volume are little.But because wearing and tearing are big in the movement process, be in deformation state for a long time, be prone to produce permanent deformation forfeiture elasticity, operating life is short.Though mostly adopt combining form now, be basic resilient support promptly with 0 type circle, add the seal ring of a material that usefulness is wear-resisting, corrosion resistant is lit up in 0 type circle outer ring, with the purpose that realizes increasing the service life.But, be that the combined seal ring that base growth is got up can not keep good sealing effect the long period equally with 0 type circle owing to keep away the deadly defect that produces permanent deformation in the unavoidable use as 0 RunddichtringO of basic resilient support.So adopt the liquid of this type sealing technique, pneumatic cylinder shorter working life.
Summary of the invention
Goal of the invention: the purpose of the utility model is to overcome the deficiency of above-mentioned prior art, and a kind of difficult leakage is provided, and the axle of good sealing effect is used combined seal ring.
Technological scheme: in order to solve the problems of the technologies described above, the described axle of the utility model is used combined seal ring, and it comprises Y shape lip seal circle and O-ring seals, and this O-ring seals is embedded in the groove of said Y shape lip seal circle.
On said Y shape lip seal circle, be provided with a lip.
Said lip is triangle, circular arc, trapezoidal or rectangle.
Said Y shape lip seal circle is a polyurethane.
Said O-ring seals is a nitrile butadiene rubber.
The utility model has had the advantage of high elasticity O shape circle and lip-type packing material wear ability concurrently; O shape circle has guaranteed the pre compressed magnitude of seal lip under low pressure or vacuum condition; Sealing force is irrelevant with variation of temperature basically, even and the wearing and tearing that take place to a certain degree also can guarantee necessary pre compressed magnitude.The O shape circle that lip changes through pressurized owing to the increase of system pressure is passed on the lip, thereby makes lip tightly embrace piston rod, plays good sealing effect.
Beneficial effect: the utility model compared with prior art, its remarkable advantage is: adopt the seal ring of combining form, changed former product with temperature variation and under low pressure or vacuum condition the problem of leakage easily, played good seal action.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Wherein:
1, Y shape lip seal circle; 2, O-ring seals; 3, groove; 4, lip.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1, the described combined seal ring of the utility model, it comprises Y shape lip seal circle 1 and O-ring seals 2, this O-ring seals 2 is embedded in the groove 3 of said Y shape lip seal circle 1; On said Y shape lip seal circle 1, be provided with a lip 4; Said lip 4 is triangle, circular arc, trapezoidal or rectangle; Said Y shape lip seal circle 1 is a polyurethane; Said O-ring seals 2 is nitrile butadiene rubbers.The utility model adopts the seal ring of combining form, has changed the problem of former product with temperature variation and easy leakage under low pressure or vacuum condition, has played good seal action.
Claims (5)
1.MBA axle is used combined seal ring, it is characterized in that: it comprises Y shape lip seal circle (1) and O-ring seals (2), and this O-ring seals (2) is embedded in the groove (3) of said Y shape lip seal circle (1).
2. MBA axle according to claim 1 is used combined seal ring, it is characterized in that: on said Y shape lip seal circle (1), be provided with a lip (4).
3. MBA axle according to claim 1 is used combined seal ring, it is characterized in that: said lip (4) is triangle, circular arc, trapezoidal or rectangle.
4. MBA axle according to claim 1 is used combined seal ring, it is characterized in that: said Y shape lip seal circle (1) is a polyurethane.
5. MBA axle according to claim 1 is used combined seal ring, it is characterized in that: said O-ring seals (2) is a nitrile butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204124664U CN202301956U (en) | 2011-10-26 | 2011-10-26 | Combined sealing ring for MBA shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204124664U CN202301956U (en) | 2011-10-26 | 2011-10-26 | Combined sealing ring for MBA shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301956U true CN202301956U (en) | 2012-07-04 |
Family
ID=46370854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204124664U Expired - Fee Related CN202301956U (en) | 2011-10-26 | 2011-10-26 | Combined sealing ring for MBA shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367874A (en) * | 2011-10-26 | 2012-03-07 | 太仓市明宇密封件有限公司 | Combined seal ring for MBA shaft |
-
2011
- 2011-10-26 CN CN2011204124664U patent/CN202301956U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367874A (en) * | 2011-10-26 | 2012-03-07 | 太仓市明宇密封件有限公司 | Combined seal ring for MBA shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20151026 |
|
| EXPY | Termination of patent right or utility model |