CN202301957U - Combined sealing ring for MBD shaft - Google Patents
Combined sealing ring for MBD shaft Download PDFInfo
- Publication number
- CN202301957U CN202301957U CN2011204124819U CN201120412481U CN202301957U CN 202301957 U CN202301957 U CN 202301957U CN 2011204124819 U CN2011204124819 U CN 2011204124819U CN 201120412481 U CN201120412481 U CN 201120412481U CN 202301957 U CN202301957 U CN 202301957U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- ring
- mbd
- circle
- lip seal
- 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
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Abstract
The utility model relates to a combined sealing ring for an MBD shaft. The combined sealing ring comprises a Y-shaped lip sealing ring, an O-shaped sealing ring and a check ring arranged at the left down side of the Y-shaped lip sealing ring. The O-shaped sealing ring is embedded in a groove of the Y-shaped lip sealing ring. According to the utility model, due to the adoption of the sealing ring in the combination form, the problem that previously, a product is easy to leak out along with the changed of the temperature and under the low pressure or vacuum condition is solved; and the combined sealing ring has wear resistance, impact resistance, extrusion resistance and good sealing effect.
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, provides a kind of shock-resistant, anti-extruding, 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; It comprises Y shape lip seal circle and O-ring seals, and the back-up ring that is located at said Y shape lip seal circle left side downside, and said 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 two lips.
Said lip is triangle, circular arc, trapezoidal or rectangle.
Said O-ring seals is slightly larger than the groove of said Y shape lip seal circle.
Said Y shape lip seal circle is a polyurethane.
Said O-ring seals is a nitrile butadiene rubber.
Said back-up ring is nylon or teflon.
The utility model has the advantage of the wear resistance of high elasticity O shape circle and lip seal material concurrently, and shock-resistant, anti-extruding owing between sealing lip extra oiling agent is arranged, prevented dry friction and wearing and tearing greatly.O shape circle has guaranteed the pre compressed magnitude of seal lip under low pressure or vacuum condition, and sealing strength is irrelevant with temperature variation basically, even wearing and tearing in a way take place, also guarantees necessary pre compressed magnitude.
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; It is wear-resisting; Shock-resistant, resist and extrude good sealing effect.
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, back-up ring; 4, groove; 5, 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, and the back-up ring 3 that is located at said Y shape lip seal circle 1 left downside, said O-ring seals 2 is embedded in the groove 4 of said Y shape lip seal circle 1; On said Y shape lip seal circle 1, be provided with two lips 5; Said lip 5 is triangle, circular arc, trapezoidal or rectangle; Said O-ring seals 2 is slightly larger than the groove 4 of said Y shape lip seal circle 1; Said Y shape lip seal circle 1 is a polyurethane; Said O-ring seals 2 is nitrile butadiene rubbers; Said back-up ring 3 is nylon or teflon.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, and it is wear-resisting, and is shock-resistant, resists and extrudes good sealing effect.
Claims (7)
1.MBD 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 the back-up ring (3) that is located at the left downside of said Y shape lip seal circle (1), said O-ring seals (2) is embedded in the groove (4) of said Y shape lip seal circle (1).
2. MBD 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 two lips (5).
3. MBD axle according to claim 1 is used combined seal ring, it is characterized in that: said lip (5) is triangle, circular arc, trapezoidal or rectangle.
4. MBD axle according to claim 1 is used combined seal ring, it is characterized in that: said O-ring seals (2) is slightly larger than the groove (4) of said Y shape lip seal circle (1).
5. MBD 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.
6. MBD 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.
7. MBD axle according to claim 1 is used combined seal ring, it is characterized in that: said back-up ring (3) is nylon or teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204124819U CN202301957U (en) | 2011-10-26 | 2011-10-26 | Combined sealing ring for MBD shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204124819U CN202301957U (en) | 2011-10-26 | 2011-10-26 | Combined sealing ring for MBD shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301957U true CN202301957U (en) | 2012-07-04 |
Family
ID=46370855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204124819U Expired - Fee Related CN202301957U (en) | 2011-10-26 | 2011-10-26 | Combined sealing ring for MBD shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367873A (en) * | 2011-10-26 | 2012-03-07 | 太仓市明宇密封件有限公司 | Combined seal ring for MBD shaft |
| WO2018147815A1 (en) * | 2017-02-09 | 2018-08-16 | Ruangtaweesittikul Adulwit | Teflon coated oil seal ring for hydraulic rod seals |
-
2011
- 2011-10-26 CN CN2011204124819U patent/CN202301957U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367873A (en) * | 2011-10-26 | 2012-03-07 | 太仓市明宇密封件有限公司 | Combined seal ring for MBD shaft |
| WO2018147815A1 (en) * | 2017-02-09 | 2018-08-16 | Ruangtaweesittikul Adulwit | Teflon coated oil seal ring for hydraulic rod seals |
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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: 20141026 |
|
| EXPY | Termination of patent right or utility model |