CN102367873A - Combined seal ring for MBD shaft - Google Patents
Combined seal ring for MBD shaft Download PDFInfo
- Publication number
- CN102367873A CN102367873A CN2011103288106A CN201110328810A CN102367873A CN 102367873 A CN102367873 A CN 102367873A CN 2011103288106 A CN2011103288106 A CN 2011103288106A CN 201110328810 A CN201110328810 A CN 201110328810A CN 102367873 A CN102367873 A CN 102367873A
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- China
- Prior art keywords
- seal ring
- ring
- mbd
- combined seal
- 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.)
- Pending
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- Sealing Devices (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention relates to a combined seal ring for a shaft. The seal ring comprises a Y-shaped lip seal ring, an O-shaped seal ring and a retainer ring which is arranged at the left lower side of the Y-shaped lip seal ring; and the O-shaped seal ring is inlaid in a groove of the Y-shaped lip seal ring. According to the invention, the combined seal ring is adopted, the problems that the traditional products change with temperature and are easy to leak at a low pressure or on a vacuum condition are solved, and the combined seal ring has good abrasion resistance, shock resistance, extrusion resistance and seal effect.
Description
Technical field
The present invention relates to the Sealing field, be 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 objective of the invention is to overcome the deficiency of above-mentioned prior art, provide a kind of shock-resistant, anti-extruding, the axle of good sealing effect is used combined seal ring.
Technological scheme: in order to solve the problems of the technologies described above; Axle of the present invention 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 present invention 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 present invention 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 a structural representation of the present invention.
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 present invention is further described.
As shown in Figure 1, combined seal ring of the present invention, 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 present invention 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 |
|---|---|---|---|
| CN2011103288106A CN102367873A (en) | 2011-10-26 | 2011-10-26 | Combined seal ring for MBD shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103288106A CN102367873A (en) | 2011-10-26 | 2011-10-26 | Combined seal ring for MBD shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102367873A true CN102367873A (en) | 2012-03-07 |
Family
ID=45760460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103288106A Pending CN102367873A (en) | 2011-10-26 | 2011-10-26 | Combined seal ring for MBD shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102367873A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016579A (en) * | 2012-12-31 | 2013-04-03 | 焦作市大华能源机械有限公司 | Combined sealing plate type brake for hydraulic cylinder |
| CN103742645A (en) * | 2013-12-20 | 2014-04-23 | 广西南宁德通网络有限公司 | Assembly-type seal ring |
| CN108474480A (en) * | 2015-10-07 | 2018-08-31 | 阿特拉斯·科普柯空气动力股份有限公司 | Method for installing speed changer and the shaft seal applied |
| TWI824797B (en) * | 2021-10-27 | 2023-12-01 | 美商聖高拜塑膠製品公司 | Seal with insert and methods of making and using the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2846904Y (en) * | 2005-11-04 | 2006-12-13 | 天地科技股份有限公司 | Polyurethane composite hydraulic seal ring |
| CN201795036U (en) * | 2010-09-26 | 2011-04-13 | 山西泰宝密封有限公司 | Y-shaped combined piston rod seal with support |
| CN202301957U (en) * | 2011-10-26 | 2012-07-04 | 太仓市明宇密封件有限公司 | Combined sealing ring for MBD shaft |
-
2011
- 2011-10-26 CN CN2011103288106A patent/CN102367873A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2846904Y (en) * | 2005-11-04 | 2006-12-13 | 天地科技股份有限公司 | Polyurethane composite hydraulic seal ring |
| CN201795036U (en) * | 2010-09-26 | 2011-04-13 | 山西泰宝密封有限公司 | Y-shaped combined piston rod seal with support |
| CN202301957U (en) * | 2011-10-26 | 2012-07-04 | 太仓市明宇密封件有限公司 | Combined sealing ring for MBD shaft |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016579A (en) * | 2012-12-31 | 2013-04-03 | 焦作市大华能源机械有限公司 | Combined sealing plate type brake for hydraulic cylinder |
| CN103742645A (en) * | 2013-12-20 | 2014-04-23 | 广西南宁德通网络有限公司 | Assembly-type seal ring |
| CN108474480A (en) * | 2015-10-07 | 2018-08-31 | 阿特拉斯·科普柯空气动力股份有限公司 | Method for installing speed changer and the shaft seal applied |
| US10982749B2 (en) | 2015-10-07 | 2021-04-20 | Atlas Copco Airpower, Naamloze Vennootschap | Method for installing a transmission and shaftseat applied thereby |
| US11460100B2 (en) | 2015-10-07 | 2022-10-04 | Atlas Copco Airpower, Naamloze Vennootschap | Method for installing a transmission and shaftseat applied thereby |
| TWI824797B (en) * | 2021-10-27 | 2023-12-01 | 美商聖高拜塑膠製品公司 | Seal with insert and methods of making and using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120307 |