CN202468992U - Combined through hole sealing ring with low pressure resistance and high pressure resistance - Google Patents
Combined through hole sealing ring with low pressure resistance and high pressure resistance Download PDFInfo
- Publication number
- CN202468992U CN202468992U CN2011204840077U CN201120484007U CN202468992U CN 202468992 U CN202468992 U CN 202468992U CN 2011204840077 U CN2011204840077 U CN 2011204840077U CN 201120484007 U CN201120484007 U CN 201120484007U CN 202468992 U CN202468992 U CN 202468992U
- Authority
- CN
- China
- Prior art keywords
- ring
- slip ring
- pressure resistance
- combined
- sealing
- 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
- 238000007789 sealing Methods 0.000 title abstract description 17
- 238000003860 storage Methods 0.000 claims abstract description 6
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000006353 environmental stress Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003251 chemically resistant material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a combined through hole sealing ring with low pressure resistance and high pressure resistance. The combined through hole sealing ring comprises an interference-fit O-ring, a slip ring and a retaining ring. A groove is equipped on the slip ring. The O-ring is applied by cooperating with the slip ring through the groove on the slip ring. The slip ring matches the retaining ring. The working face of the slip ring is provided with two to three oil storage grooves. By equipping oil storage grooves on the working face, the sealing ring provided in the utility model solves the oil membrane problem during a backhaul process and meanwhile is enabled to store a sealing medium so as to achieve sealing lubrication. The service lifetime of the sealing ring is thus prolonged. The combined through hole sealing ring provided in the utility model has the advantages of simple groove structure, excellent sealing effects, good wear resistance, greater fit clearance availability, processing cost decrease and long service lifetime.
Description
Technical field
The utility model relates to technical field of sealing technology, and especially industry such as water power, steel mill is specially adapted to hydraulic pressure via hole oil cylinder, generally is applicable to industry sealings such as metallurgy, water power.
Background technique
Traditional Y shape circle, because of receiving the restriction of infrastructure product itself, thereby at the needs that seal and all satisfied not on working life real work.The utility model sealing configuration damages the seal failure problem to solving via hole at present.That adopts the advanced person adds graphite fiber teflon, ultra-high molecular weight polyethylene as primary seal; The former is having unique physical condition and electrochemical conditions aspect wear-resisting, high temperature resistant and anti-the extruding; The latter has impact resistance, environmental stress resistance, cracking ability, anti-delineation ability good; Wear-resisting property is strong, is 10 times of polyurethane.
The model utility content
The technical problem that the utility model will solve is: solve present via hole and damage lip, cause the seal failure problem.Under low pressure, high-pressure situations, all can reach good sealing effect.
A kind of via hole of anti-high low pressure combined seal ring of the utility model is to realize through such technological scheme:
A kind of via hole of anti-high low pressure combined seal ring comprises the O type circle of interference fit, and slip ring and back-up ring are fluted on the slip ring, O type circle through slip ring groove and be used with it, described slip ring and back-up ring are complementary.
As preferably, described slip ring working surface has 2 to 3 road oil storage tanks, solves piston rod and attaches dirt problem and the problem that solves lack of lubrication.
Wherein O shape circle mainly plays the static seal between seal in the groove and non-working surface; Slip ring mainly plays the working surface seal action; Back-up ring mainly plays to resist extrudes effect, and back-up ring can prevent that bearing ring seal is extruded, even guaranteed that use also has the permanent life-span under mal-condition; It adopts predefined interference fit, applies pretightening force through elastomer portion, even when system pressure is low, also can guarantee good seal action.Along with pressure raises, O shape circle part receives system pressure and the application of force, thereby radially the sealing slip ring being produced thrust upwards, plays seal action.Because the water treatment valve all is a normal temperature in operating temperature, so O shape circle all adopts nitrile butadiene rubber; Slip ring adopts ultra-high molecular weight polyethylene, and strengthening ultra-high molecular weight polyethylene, to have impact resistance, environmental stress resistance, cracking ability, anti-delineation ability good, and wear-resisting property is strong, is 10 times of polyurethane; The back-up ring that cooperates with slip ring adopts the chemically-resistant material can resist crowded property better to add the graphite fiber teflon and processes, be made into particular structural, use and installation aspect more have superiority.
Compared with prior art, the advantage of the utility model is: the bigger matching gap of sealing effect, excellent in abrasion resistance, permission that groove structure is simple, splendid, so can reduce processing charges, long service life.
Description of drawings
Through embodiment, the utility model is further described below in conjunction with accompanying drawing.
Fig. 1 is a kind of via hole of anti-high low pressure combination ring structure schematic representation of the utility model;
1 is O shape circle, and 2 is slip ring, and 3 is back-up ring.
Embodiment
In Fig. 1, a kind of via hole of anti-high low pressure combined seal ring comprises the O type circle 1 of interference fit, and slip ring 2 and back-up ring 3 are fluted on the slip ring 2, O type circle 1 through slip ring 2 groove and be used with it, described slip ring 2 is complementary with back-up ring 3.Described slip ring 2 working surfaces have 2 to 3 road oil storage tanks (not shown).
The seal ring working surface has oil storage tank, can solve oil film problem in the backhaul, simultaneously can store sealing medium, thereby makes sealing reach lubrication, thereby prolongs seal ring working life.
The foregoing description; It is an instance of the utility model; Be not enforcement and the interest field that is used for limiting the utility model, all and the said same content of the utility model claim or the technological scheme that is equal to all should be included in the utility model protection domain.
Claims (2)
1. the via hole of anti-high low pressure combined seal ring is characterized in that: comprise the O type circle of interference fit, slip ring and back-up ring, fluted on the slip ring, O type circle through slip ring groove and be used with it, described slip ring and back-up ring are complementary.
2. a kind of via hole of anti-high low pressure combined seal ring according to claim 1 is characterized in that: described slip ring working surface has 2 to 3 road oil storage tanks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204840077U CN202468992U (en) | 2011-11-19 | 2011-11-19 | Combined through hole sealing ring with low pressure resistance and high pressure resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204840077U CN202468992U (en) | 2011-11-19 | 2011-11-19 | Combined through hole sealing ring with low pressure resistance and high pressure resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468992U true CN202468992U (en) | 2012-10-03 |
Family
ID=46917151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204840077U Expired - Fee Related CN202468992U (en) | 2011-11-19 | 2011-11-19 | Combined through hole sealing ring with low pressure resistance and high pressure resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468992U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2525962A (en) * | 2014-03-05 | 2015-11-11 | Eriks Ind Services Ltd | Seal Assembly |
| CN105443759A (en) * | 2015-11-28 | 2016-03-30 | 江门市格雷亚特流体密封技术有限公司 | PGL type piston sealing combination ring |
| CN110410116A (en) * | 2019-08-05 | 2019-11-05 | 重庆工程职业技术学院 | Sealing ring for single hydraulic prop |
-
2011
- 2011-11-19 CN CN2011204840077U patent/CN202468992U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2525962A (en) * | 2014-03-05 | 2015-11-11 | Eriks Ind Services Ltd | Seal Assembly |
| US9488280B2 (en) | 2014-03-05 | 2016-11-08 | Eriks Industrial Services Limited | Seal assembly |
| CN105443759A (en) * | 2015-11-28 | 2016-03-30 | 江门市格雷亚特流体密封技术有限公司 | PGL type piston sealing combination ring |
| CN110410116A (en) * | 2019-08-05 | 2019-11-05 | 重庆工程职业技术学院 | Sealing ring for single hydraulic prop |
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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: 20121003 Termination date: 20141119 |
|
| EXPY | Termination of patent right or utility model |