CN106704595A - Framework-preposed oil seal used under high pressure - Google Patents
Framework-preposed oil seal used under high pressure Download PDFInfo
- Publication number
- CN106704595A CN106704595A CN201611227603.0A CN201611227603A CN106704595A CN 106704595 A CN106704595 A CN 106704595A CN 201611227603 A CN201611227603 A CN 201611227603A CN 106704595 A CN106704595 A CN 106704595A
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- CN
- China
- Prior art keywords
- seal
- line segment
- skeleton
- framework
- high pressure
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
- F16J15/3292—Lamellar structures
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention discloses a framework-preposed oil seal used under a high pressure. The framework-preposed oil seal comprises a framework and a sealing body; the section of the framework comprises four line segments; the lower end of a first line segment and the left end of a second line segment are connected and form an included angle A which is equal to 90-100 DEG; the second line segment is horizontal; the right end of the second line segment and the lower end of a third line segment are connected and form an included angle B which is equal to A; the upper end of the third line segment is connected with the left end of a fourth line segment which is horizontal; the upper surface of the sealing body is completely fitted and bonded with the lower surface of the framework; the framework is preposed between a sealing region and hydraulic oil; the peripheral surface of the sealing body has no taper; the outer side of the upper end surface of the sealing body is provided with a fillet; a lip body at the inner circumference of the sealing body is triangular; the internal diameter of the lip body is smaller than that of the framework; and the lip body and the lower end surface of the sealing body are provided with inclination angles. By using the oil seal, the pressure endurance capability of the oil seal can be remarkably improved, and the temperature rise rate of the oil seal in a high-pressure use process can be reduced.
Description
Technical field
The present invention relates to oil enveloping structure, and in particular to a kind of high pressure preposition oil sealing of skeleton.
Background technology
Oil sealing is the critical component of plant equipment, and can its performance quality direct relation equipment safe and reliable operation.With
Scientific and technical continues to develop, and all kinds of plant equipment develop to high pressure direction, performance of the oil sealing under high pressure operating mode, it has also become dress
Prepare the key point for making field development.The oil sealing used such as hydraulic motor directly bears pressure medium very high, positive normal pressure
In 10-20Mpa, maximum pressure is likely to be breached 30Mpa for power requirement, generally, with the increase of sealed medium pressure, oil seal lip with
Contact stress and contact width of the rotary shaft in contact zone can be continuously increased so that contact zone temperature is raised, and radiating is difficult, aggravation
Ageing of rubber, ultimately results in seal failure.The risk that oil sealing also has and extrusion occurs, turns over the destructions such as lip under high pressure simultaneously.
Therefore, oil sealing voltage endurance capability is improved, it is to avoid the destruction under oil sealing high pressure, meeting the high pressure operating mode for improving constantly will
Ask, be those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of high pressure preposition oil sealing of skeleton, the oil sealing can show
Write and improve oil sealing voltage endurance capability, reduce temperature rise rate of the oil sealing during high pressure use.
The scheme that the present invention solves above-mentioned technical problem is as follows：
The high pressure preposition oil sealing of skeleton, including skeleton and seal,
The section of the skeleton includes four line segments, and the lower end of the first line segment is connected with the left end of second line segment and forms folder
Angle A, A=90-100 °, second line segment is horizontal, and the right-hand member of second line segment is connected with the lower end of the 3rd line segment and forms angle
B, B=A, the upper end of the 3rd line segment connect the left end of the 4th line segment, and the 4th line segment is horizontal；
The upper surface of the seal is fitted and is mutually bonded completely with the lower surface of skeleton, and skeleton is preposition in seal
Seal area and hydraulic oil between；
The outer peripheral face zero draft of the seal, the upper surface outside of seal is provided with chamfering, the lip of the inner circumferential of seal
Body has a generally triangular shape that the internal diameter of the internal diameter less than skeleton of lip body, lip body is provided with oblique angle with the lower surface of seal.
The lower surface of the seal is provided with support ring, the external diameter of the external diameter ＞ support rings of the external diameter ＞ skeletons of seal,
The internal diameter of the internal diameter ＞ lip bodies of the internal diameter ＞ support rings of skeleton.Support ring belongs to optional accessory, can be according to actual installation position
Trench gap and pressure medium size decide whether be equipped with.
The seal is simply contacted with support ring, or seal is mutually bonded with support ring.
The skeleton is metal material, and seal is elastomeric material, and support ring is metal material.
Operation principle of the invention is：By by the bonding of skeleton and seal so that skeleton is connected with seal,
For seal provides support；By the way that skeleton is preposition between seal seal area and hydraulic oil so that skeleton is to seal lip
There is certain drag interaction in portion, can effectively reduce contact width when oil sealing is pressurized, radial load and be gathered way with pressure, reduces
Temperature rise rate；And by the support ring, the gap length of oil sealing installing groove can be effectively controlled, prevent oil sealing under high pressure
Extrude, so as to strengthen the voltage endurance capability of oil sealing.
The present invention has the following advantages relative to prior art：
1st, this high pressure preposition oil sealing of skeleton, skeleton is preposition between seal seal area and hydraulic oil, and seal is risen
Supporting role, and have certain drag interaction to seal lip when oil sealing bears pressure medium；Seal seals；Lip
Body is pointed shape, so as to form linear contact lay with rotating shaft, improves sealing effectiveness；High-pressure oil sealing of the invention is sealed when pressure is born
The contact width of contact zone, radial load gather way it is smaller so that oil sealing caloric value is relatively low with the speedup of pressure, delays
The generation of high temperature ageing, substantially increases oil sealing voltage endurance capability and service life.
2nd, seal and support ring are leaving oblique angle gap at axle so that seal has one when oil sealing bears high pressure
Fixed deformation space, so as to strengthen the anti-plasticating capacity of oil sealing.
3rd, support ring this optional spare part is provided with, the installing groove larger for gap can install support ring additional, is supported
Ring can control the gap length of oil sealing installing groove and support seal, prevent from getting into trench gap during seal high pressure.
4th, skeleton is metal material, can resist sealed medium pressure, preposition in seal seal area front side.Seal is rubber
Glue material, elasticity is good.Support ring is metal material, and its effect is to control the gap length of oil sealing installing groove and support sealing
Body, prevents from getting into trench gap during seal high pressure.
Brief description of the drawings
Fig. 1 is the sectional view of the preposition oil sealing of high pressure skeleton of the invention.
Fig. 2 is the stereochemical structure sectional view of Fig. 1.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
The preposition oil sealing of skeleton of high pressure as depicted in figs. 1 and 2, including skeleton 1 and seal 2,
The section of skeleton 1 includes four line segments, and the lower end of the first line segment 11 is connected and is formed with the left end of second line segment 12
Included angle A, A=95 °, second line segment 12 is horizontal, and the right-hand member of second line segment 12 is connected and is formed with the lower end of the 3rd line segment 13
Included angle B, B=A, the upper end of the 3rd line segment 13 connects the left end of the 4th line segment 14, and the 4th line segment 14 is horizontal；
The upper surface of seal 2 is fitted and is mutually bonded completely with the lower surface of skeleton 1, and skeleton 1 is preposition in seal 2
Seal area and hydraulic oil between；
The zero draft of outer peripheral face 21 of seal 2, the upper surface outside of seal 2 is provided with chamfering, the lip of the inner circumferential of seal 2
Body 22 has a generally triangular shape that the internal diameter of the internal diameter less than skeleton 1 of lip body 22, lip body 22 is provided with oblique angle 23 with the lower surface of seal 2.
The lower surface of seal 2 is provided with support ring 3, the external diameter of the external diameter ＞ support rings 3 of the external diameter ＞ skeletons 1 of seal 2,
The internal diameter of the internal diameter ＞ lips body 22 of the internal diameter ＞ support rings 3 of skeleton 1.
Seal 2 is simply contacted with support ring 3, or seal 2 is mutually bonded with support ring 3.
Skeleton 1 is metal material, and seal 2 is elastomeric material, and support ring 3 is metal material.
It is above-mentioned for the present invention preferably implementation method, but embodiments of the present invention are not limited by the above, its
He any without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplify, should be
The substitute mode of effect, is included within protection scope of the present invention.
Claims (4)
1. the high pressure preposition oil sealing of skeleton, it is characterised in that：Including skeleton and seal,
The section of the skeleton includes four line segments, and the lower end of the first line segment is connected with the left end of second line segment and forms included angle A,
A=90-100 °, second line segment is horizontal, and the right-hand member of second line segment is connected with the lower end of the 3rd line segment and forms included angle B, B=
A, the upper end of the 3rd line segment connects the left end of the 4th line segment, and the 4th line segment is horizontal；
The upper surface of the seal is fitted and is mutually bonded completely with the lower surface of skeleton, and skeleton is preposition in the close of seal
Between envelope area and hydraulic oil；
The outer peripheral face zero draft of the seal, the upper surface outside of seal is provided with chamfering, and the lip body of the inner circumferential of seal is in
Existing triangle, the internal diameter of the internal diameter less than skeleton of lip body, lip body is provided with oblique angle with the lower surface of seal.
2. the high pressure according to claim 1 preposition oil sealing of skeleton, it is characterised in that：The lower surface of the seal is provided with
Support ring, the external diameter of the external diameter ＞ support rings of the external diameter ＞ skeletons of seal, the internal diameter ＞ lip bodies of the internal diameter ＞ support rings of skeleton
Internal diameter.
3. the high pressure according to claim 1 preposition oil sealing of skeleton, it is characterised in that：The seal is simple with support ring
Contact, or seal is mutually bonded with support ring.
4. the high pressure according to claim 2 preposition oil sealing of skeleton, it is characterised in that：The skeleton is metal material, close
Feng Tiwei elastomeric materials, support ring is metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611227603.0A CN106704595B (en) | 2016-12-27 | 2016-12-27 | The preposition oil sealing of high pressure skeleton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611227603.0A CN106704595B (en) | 2016-12-27 | 2016-12-27 | The preposition oil sealing of high pressure skeleton |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106704595A true CN106704595A (en) | 2017-05-24 |
| CN106704595B CN106704595B (en) | 2019-11-01 |
Family
ID=58895475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611227603.0A Active CN106704595B (en) | 2016-12-27 | 2016-12-27 | The preposition oil sealing of high pressure skeleton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704595B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110109281A (en) * | 2010-03-31 | 2011-10-06 | 평화오일씰공업주식회사 | Oil seal for crank shaft of vehicle |
| KR20110109282A (en) * | 2010-03-31 | 2011-10-06 | 평화오일씰공업주식회사 | Oil seal for crank shaft of vehicle with micro bumpy space |
| CN202381697U (en) * | 2011-11-18 | 2012-08-15 | 青岛开世密封工业有限公司 | Combination oil seal |
| CN203686150U (en) * | 2013-06-15 | 2014-07-02 | 青岛开世密封工业有限公司 | Oil seal capable of quickly responding air tightness detection |
| CN204004425U (en) * | 2014-06-20 | 2014-12-10 | 东风商用车有限公司 | Gearbox output shaft oil seal |
| CN104832652A (en) * | 2015-04-15 | 2015-08-12 | 广州机械科学研究院有限公司 | High-pressure oil seal assembly |
| CN205001512U (en) * | 2015-07-31 | 2016-01-27 | 青岛海力威新材料科技股份有限公司 | Novel no spring -loaded oil seal of high -speed operation of adaptation |
| CN205260839U (en) * | 2016-01-05 | 2016-05-25 | 南阳天一密封股份有限公司 | Oil seal for output shaft of speed variator |
| CN206495998U (en) * | 2016-12-27 | 2017-09-15 | 广州机械科学研究院有限公司 | The high pressure preposition oil sealing of skeleton |
-
2016
- 2016-12-27 CN CN201611227603.0A patent/CN106704595B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110109281A (en) * | 2010-03-31 | 2011-10-06 | 평화오일씰공업주식회사 | Oil seal for crank shaft of vehicle |
| KR20110109282A (en) * | 2010-03-31 | 2011-10-06 | 평화오일씰공업주식회사 | Oil seal for crank shaft of vehicle with micro bumpy space |
| CN202381697U (en) * | 2011-11-18 | 2012-08-15 | 青岛开世密封工业有限公司 | Combination oil seal |
| CN203686150U (en) * | 2013-06-15 | 2014-07-02 | 青岛开世密封工业有限公司 | Oil seal capable of quickly responding air tightness detection |
| CN204004425U (en) * | 2014-06-20 | 2014-12-10 | 东风商用车有限公司 | Gearbox output shaft oil seal |
| CN104832652A (en) * | 2015-04-15 | 2015-08-12 | 广州机械科学研究院有限公司 | High-pressure oil seal assembly |
| CN205001512U (en) * | 2015-07-31 | 2016-01-27 | 青岛海力威新材料科技股份有限公司 | Novel no spring -loaded oil seal of high -speed operation of adaptation |
| CN205260839U (en) * | 2016-01-05 | 2016-05-25 | 南阳天一密封股份有限公司 | Oil seal for output shaft of speed variator |
| CN206495998U (en) * | 2016-12-27 | 2017-09-15 | 广州机械科学研究院有限公司 | The high pressure preposition oil sealing of skeleton |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106704595B (en) | 2019-11-01 |
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