CN102996810A - High-performance Y-type sealing ring - Google Patents
High-performance Y-type sealing ring Download PDFInfo
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- CN102996810A CN102996810A CN2012105561183A CN201210556118A CN102996810A CN 102996810 A CN102996810 A CN 102996810A CN 2012105561183 A CN2012105561183 A CN 2012105561183A CN 201210556118 A CN201210556118 A CN 201210556118A CN 102996810 A CN102996810 A CN 102996810A
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Abstract
The invention discloses a high-performance Y-type sealing ring. The sealing ring comprises an annular body, wherein a Y-type sealing structure is arranged on one side, communicated with high-pressure oil and consists of an upper lip and a lower lip, of the annular body; the upper lip is designed in a composite lip shape structure and consists of a front lip and a back lip; a gap is formed between the front lip and the back lip; and a joint at the bottom is in smooth transition through a curved surface. The invention discloses the high-performance Y-type sealing ring which is unique in structural design; the upper lip is designed in the composite lip shape structure, so that the sealing capability and durability of the sealing ring are greatly improved; and meanwhile, the front lip and back lip structure gives the sealing ring a good oil pressure sudden-change resistance, so that a hydraulic device is safer and more reliable when being used.
Description
Technical field
The present invention relates to a kind of y-type seal ring, relate in particular to that a kind of structure is unique, working life lasting high-performance Y type seal ring, belong to the hydraulic fittings technical field.
Background technique
The cross section of y-type seal ring is the Y type, is a kind of typical lip-type packing.In the height in its cross section, wide ratio difference, can be divided into several classes such as wide type, narrow type, Yx type; Whether equate by the height of two lips, then can be divided into the universal contour lip y-type seal ring of axle, hole and not the axle of contour lip with y-type seal ring and hole y-type seal ring.Y-type seal ring relies on its lip limit of opening and sealing pair coupled face to fit.When without interior pressure, only the distortion because of procheilon produces very little contact, with on the every bit that sealing medium contacts the normal pressure that equates with pressure medium is arranged all, so lower lips will be subject to axial compression, and upper lip is subject to circumferential compression, contact with sealing surface and to broaden, contact stress increases simultaneously; When interior pressure raise again, the distribution form of contact and size further changed, and lip cooperates tightr with sealing surface, thus better tightness, " self-tightening " of Here it is y-type seal ring.Because this " self-tightening ", y-type seal ring can effectively seal the high pressure of 32MPa.
The y-type seal ring that in long-time, continual high hydraulic environment, uses, its upper lip edge wear extent is seriously, and sealability descends thereupon, if change untimelyly, often leakage phenomenon can occur; Common y-type seal ring is limited working life, and replacement frequency is high, has not only increased maintenance cost, and has reduced easily manufacturing efficiency; Simultaneously, common y-type seal ring can't be tackled the sudden change situation of oil pressure, and practicability is not good enough.
Summary of the invention
For the demand, the invention provides a kind of high-performance Y type seal ring, the upper lip of this y-type seal ring adopts compound lip structure, this structure has promoted sealability and the durability of seal ring, and effectively promoted the ability of the anti-oil pressure sudden change of seal ring, so that the use of hydraulic pressure installation is safer, reliable.
The present invention is a kind of high-performance Y type seal ring, the sealing circle comprises a ring body, ring body arranges Y type sealing configuration in logical high pressure oil one side, described Y type sealing configuration is comprised of upper lip and lower lip, described upper lip adopts compound lip structural design, be comprised of anterior lip and posterior lip, have the gap between the described forward and backward lip, the arc shaped surface smooth transition is adopted in the joint of bottom.
In a preferred embodiment of the present invention, the external diameter of described anterior lip and thickness are not more than in the working environment of 25MPa at oil pressure all greater than posterior lip, and only anterior lip plays seal action, and is contactless between posterior lip and the slippage coupling surface.
In a preferred embodiment of the present invention, described posterior lip is brought into play seal action in the environment of operating oil pressure greater than 25MPa.
In a preferred embodiment of the present invention, described forward and backward bead structure can make the maximum service pressure of y-type seal ring promote 20%-25%.
In a preferred embodiment of the present invention, the gap between the described forward and backward lip is about the 35%-40% of front lip thickness.
The present invention has disclosed a kind of high-performance Y type seal ring, and the design of sealing coil structures is unique, and its upper lip adopts compound lip structural design, has promoted greatly sealability and the durability of seal ring; Simultaneously, forward and backward bead structure has been given the ability that the good anti-oil pressure of seal ring suddenlys change, so that hydraulic pressure installation is safer, reliable in use.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments:
Fig. 1 is the sectional drawing of embodiment of the invention high-performance Y type seal ring;
The mark of each parts is as follows in the accompanying drawing: 1, ring body, 2, upper lip, 3, lower lip, 4, anterior lip, 5, posterior lip.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
Fig. 1 is the sectional drawing of embodiment of the invention high-performance Y type seal ring; The sealing circle comprises a ring body 1, ring body 1 arranges Y type sealing configuration in logical high pressure oil one side, described Y type sealing configuration is comprised of upper lip 2 and lower lip 3, described upper lip 2 adopts compound lip structural design, formed by anterior lip 4 and posterior lip 5, have the gap between the described forward and backward lip, the arc shaped surface smooth transition is adopted in the joint of bottom.
The external diameter of the anterior lip 4 of the high-performance Y type seal ring that the present invention mentions and thickness are not more than in the working environment of 25MPa at oil pressure all greater than posterior lip 5, and only anterior lip 4 plays seal action, and is contactless between posterior lip 5 and the slippage coupling surface; Posterior lip 5 is brought into play seal action in the environment of operating oil pressure greater than 25MPa; Forward and backward bead structure design can make the maximum service pressure of y-type seal ring promote 20%-25%, and generally, the maximum anti-oil pressure capacity of this y-type seal ring can reach 45MPa.
The 35%-40% that gap between the above-mentioned forward and backward lip is about anterior lip 4 thickness can store quantitative hydraulic oil in this gap, forms the pocketed oil district, reduces the pressure reduction of anterior lip 4 both sides, reduces the wear extent of anterior lip 4, improves the working life of seal ring.
The present invention has disclosed a kind of high-performance Y type seal ring, is characterized in: the design of sealing coil structures is unique, and its upper lip adopts compound lip structural design, has promoted greatly sealability and the durability of seal ring; Simultaneously, forward and backward bead structure has been given the ability that the good anti-oil pressure of seal ring suddenlys change, so that hydraulic pressure installation is safer, reliable in use.
The above; it only is the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (5)
1. high-performance Y type seal ring, the sealing circle comprises a ring body, ring body arranges Y type sealing configuration in logical high pressure oil one side, it is characterized in that, described Y type sealing configuration is comprised of upper lip and lower lip, and described upper lip adopts compound lip structural design, is comprised of anterior lip and posterior lip, have the gap between the described forward and backward lip, the arc shaped surface smooth transition is adopted in the joint of bottom.
2. high-performance Y type seal ring according to claim 1 is characterized in that, the external diameter of described anterior lip and thickness are not more than in the working environment of 25MPa at oil pressure all greater than posterior lip, and only anterior lip plays seal action, and is contactless between posterior lip and the slippage coupling surface.
3. high-performance Y type seal ring according to claim 1 is characterized in that, described posterior lip is brought into play seal action in the environment of operating oil pressure greater than 25MPa.
4. high-performance Y type seal ring according to claim 1 is characterized in that, described forward and backward bead structure can make the maximum service pressure of y-type seal ring promote 20%-25%.
5. high-performance Y type seal ring according to claim 1 is characterized in that, the gap between the described forward and backward lip is about the 35%-40% of front lip thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105561183A CN102996810A (en) | 2012-12-20 | 2012-12-20 | High-performance Y-type sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105561183A CN102996810A (en) | 2012-12-20 | 2012-12-20 | High-performance Y-type sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102996810A true CN102996810A (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105561183A Pending CN102996810A (en) | 2012-12-20 | 2012-12-20 | High-performance Y-type sealing ring |
Country Status (1)
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| CN (1) | CN102996810A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0427056A1 (en) * | 1989-11-07 | 1991-05-15 | FRIEDRICH GROHE ARMATURENFABRIK GmbH & CO | Packing ring |
| CN2306368Y (en) * | 1997-09-29 | 1999-02-03 | 北京吉普汽车有限公司 | Sealing part |
| JP2009041712A (en) * | 2007-08-10 | 2009-02-26 | Nok Corp | U-packing |
| CN201335153Y (en) * | 2008-12-01 | 2009-10-28 | 江阴强顺科技有限公司 | Novel double-lip leather cup sealing part |
| CN201651322U (en) * | 2009-11-11 | 2010-11-24 | 青岛开世密封工业有限公司 | Y-shaped sealing ring for reciprocating motion using |
| CN201723723U (en) * | 2010-06-18 | 2011-01-26 | 卫德义 | Y-type leather cup sealing member with inner double lips or outer double lips |
| CN201923118U (en) * | 2011-01-10 | 2011-08-10 | 山东遨游汽车制动系统股份有限公司 | Leak-proof braking cup |
-
2012
- 2012-12-20 CN CN2012105561183A patent/CN102996810A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0427056A1 (en) * | 1989-11-07 | 1991-05-15 | FRIEDRICH GROHE ARMATURENFABRIK GmbH & CO | Packing ring |
| CN2306368Y (en) * | 1997-09-29 | 1999-02-03 | 北京吉普汽车有限公司 | Sealing part |
| JP2009041712A (en) * | 2007-08-10 | 2009-02-26 | Nok Corp | U-packing |
| CN201335153Y (en) * | 2008-12-01 | 2009-10-28 | 江阴强顺科技有限公司 | Novel double-lip leather cup sealing part |
| CN201651322U (en) * | 2009-11-11 | 2010-11-24 | 青岛开世密封工业有限公司 | Y-shaped sealing ring for reciprocating motion using |
| CN201723723U (en) * | 2010-06-18 | 2011-01-26 | 卫德义 | Y-type leather cup sealing member with inner double lips or outer double lips |
| CN201923118U (en) * | 2011-01-10 | 2011-08-10 | 山东遨游汽车制动系统股份有限公司 | Leak-proof braking cup |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |