CN201373105Y - Metal spring enforced sealing element - Google Patents
Metal spring enforced sealing element Download PDFInfo
- Publication number
- CN201373105Y CN201373105Y CN200920301357U CN200920301357U CN201373105Y CN 201373105 Y CN201373105 Y CN 201373105Y CN 200920301357 U CN200920301357 U CN 200920301357U CN 200920301357 U CN200920301357 U CN 200920301357U CN 201373105 Y CN201373105 Y CN 201373105Y
- Authority
- CN
- China
- Prior art keywords
- ring
- lip
- metal spring
- sealing element
- 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 claims abstract description 51
- 239000002184 metal Substances 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract 4
- 239000004809 Teflon Substances 0.000 claims description 5
- 229920006362 Teflon® Polymers 0.000 claims description 5
- 210000005056 cell body Anatomy 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 3
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a metal spring enforced sealing element comprising a ring-shaped sealing element. A groove (13) of the ring-shaped sealing element (1) is internally embedded with a metal spring (20) which is a spiral spring structure having an inclined angle of 10-45 degrees, the ring-shaped sealing element (1) embedded with the metal spring (20) is a groove body structure with middle protruding outwards at a cross section. The ring-shaped sealing element is provided with inner and outer sealing lips. The ring-shaped sealing element (1) is formed by a structure filled with modified polytetrafluoroethylene or purified polytetrafluoroethylene or ultra-high molecular weight polyethylene materials, thus improving sealing reliability as well as self-owned service life of the sealing element, and not only utilizing excellent performance of the polytetrafluoroethylene material fully, but also combining high elasticity of the metal spring, overcoming the defects of common elastic sealing rings, and greatly improving the comprehensive performance of the sealing element.
Description
Technical field
The utility model relates to a kind of mechanical sealing element, especially a kind of Sealing that is used in the dynamic power machine to-and-fro motion and rotatablely moves.
Background technique
At present in hydraulic transmission control, particularly in the piston seal and rod seal that use reciprocating movement oil cylinder, seal ring can both play good seal action under the working pressure of high pressure and low pressure, but up to the present, seal ring is unsatisfactory its working life, the seal failure time is all shorter, can not satisfy existing requirement in working life, and outer seal lip oral area position often, the position that its seal failure took place.Traditional Sealing that is used for to-and-fro motion and rotatablely moves, various ways is arranged, as Y shape rubber seal, rubber lip seal etc., these seal rings are because material therefor is a rubber, be easy to wearing and tearing, aging, working life short, in addition because friction factor is big, cause resistance big, during running power consumption big, be difficult to satisfy the usage requirement of long lifetime, low energy consumption.
The day for announcing is that the granted patent ZL 200820047775.4 on February 11st, 2009 discloses a kind of chevron seal ring, and the external sealed lip of chevron seal ring is provided with outer lubricating channels.This chevron seal ring is used for the piston seal of reciprocating movement oil cylinder; the position of seal lip outside; increase outer lubricating channels; its objective is and store up certain hydraulic pressure grease; the chevron seal ring lubrication of lip in the course of the work is provided; reach and prevent that external sealed lip and piston bore or piston rod from no oily dry condition occurring and damaging the external sealed lip; can make the external sealed lip be in lubricating status for a long time; reduced the external sealed lip with and its slip surface of contacting between area of contact; reduced frictional damping effectively; reduced frictional force; play the effect of protecting the external sealed lip well; improve the sealing quality of chevron seal ring, sealing effect is good, prolongs the working life of chevron seal ring.The piston seal that this chevron seal ring is mainly used in the reciprocating movement oil cylinder in the hydraulic transmission control is sealed by external diameter.But the working life of this seal ring is too big to the dependence of lubricant oil, has improved the usage requirement to lubricant oil from another angle again.
The model utility content
The metal spring enhanced leaktightness spare of a kind of good seal performance that the utility model provides for solving existing Sealing and being easy to wearing and tearing, aging, present situation such as working life is short, and resistance is big during running, power consumption is big, wear-resisting, long service life.
The utility model is to solve the problems of the technologies described above the concrete technological scheme that is adopted to be: a kind of metal spring enhanced leaktightness spare, comprise lip ring, in the groove of lip ring, be embedded with metal spring, metal spring is the spiral spring structure with 10～45 ° of tilt angle, and the lip ring that is embedded behind the metal spring is opened structure for the cell body middle part to evagination on the transverse section.Open the reliability realization that structure is more conducive to sealing effect to evagination, spiral spring with certain tilt angle is after being compressed on the cross section, return and produce tension force, this tension force provides required good radial force for Sealing, and the constant tension that the spiral spring with certain tilt angle produces, and the compression creep power attenuation that it produces in the to-and-fro motion process is minimum, under certain contractive condition, can provide a substantially invariable inside and outside ring to seal needed radial force, thoroughly improve the defective that the ordinary elasticity seal ring exists to lip ring.
As preferably, lip ring is provided with the outer shroud sealing lip, and the outer shroud sealing lip is provided with several protruding auxiliary seal lip ring.Outer shroud sealing lip and auxiliary seal lip can reach good sealing effect to outer seal member.
As preferably, in being provided with, lip ring encircles sealing lip, and interior ring sealing lip is provided with several protruding auxiliary seal lip ring.Interior ring sealing lip and auxiliary seal lip can reach good sealing effect to outer seal member.
As preferably, outer shroud sealing lip, interior ring sealing lip are provided with the words that collude to the groove invagination on lip.Words can make the more effective assembly of metal spring not eject in the groove of lip ring.
As preferably, lip ring is made of filling-modified teflon or pure teflon or ultra-high molecule polytetrafluoroethylmaterial material structure.Make full use of performances such as good self lubricity that polytetrafluoroethylmaterial material has, oil resistant, wear-resisting, ageing-resistant, strong acid-base resistance and improve the sealability needs of lip ring, thereby reach the inaccessiable good seal performance effect of general ordinary elasticity seal ring.
The beneficial effects of the utility model are: this metal spring enhanced leaktightness spare had both improved the reliability of sealing property of sealing component, improved the working life of Sealing itself again, both made full use of the excellent properties of polytetrafluoroethylmaterial material, the elastomeric property that has had both metal spring has again improved the combination property of Sealing largely.
Description of drawings:
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model metal spring enhanced leaktightness spare.
Fig. 2 is the rear view of Fig. 1.
Fig. 3 is the sectional view of Fig. 1.
Embodiment
Among Fig. 1, the embodiment shown in Figure 3, a kind of metal spring enhanced leaktightness spare, comprise lip ring, in the groove 13 of lip ring 1, imbed metal spring 20, metal spring 20 is the spiral spring structure with 30 ° of tilt angle when free state, approximately less than the groove intermediate portion, its middle part, cell body transverse section guarantees can not eject after metal spring embeds wherein for to open structure to evagination lip ring 1 from the transverse section notch.Be provided with outer shroud sealing lip 11 at lip ring 1, outer shroud sealing lip 11 is provided with auxiliary seal lip ring 111 (see figure 3)s of 3 road projectioies, and outer shroud sealing lip 11 is being provided with the words 112 that collude in groove on the lip, and words catch on the not outer bullet of spring.Ring sealing lip 12 in lip ring 1 is provided with, interior ring sealing lip 12 is provided with auxiliary seal lip ring 121 (see figure 3)s of 3 road projectioies, and interior ring sealing lip 12 is being provided with the words 122 that collude in groove on the lip.The auxiliary seal lip ring of evagination further improves the reliability of sealing.Bottom land 14 thickness of groove 13 are than the thick (see figure 3) of thickness of inside and outside ring sealing lip, and lip ring 1 is made of filling-modified polytetrafluoroethylmaterial material structure.
During use, it is installed on piston rod or the piston hole sealed groove, when metal spring enhanced leaktightness spare is under pressure extruding when moving reciprocatingly, because the elastic reaction of metal spring itself, the outside bullet of inner and outer rings sealing lip is squeezed, form the trapezoidal transverse face effect of mired, strengthen the sealing effect in the to-and-fro motion process, simultaneously the seal ring of teflon material-structure itself possess better elastic and characteristics such as wear-resisting, oil resistant, acid resistant alkali make Sealing operational safety and all obtain very big degree working life and improve.
Claims (6)
1. metal spring enhanced leaktightness spare, comprise lip ring, it is characterized in that: in the groove (13) of lip ring (1), be embedded with metal spring (20), metal spring (20) is for to have the spiral spring structure at 10～45 ° of tilt angle, and the lip ring (1) that is embedded behind the metal spring (20) is opened structure for the cell body middle part to evagination on the transverse section.
2. according to the described metal spring of claim 1 enhanced leaktightness spare, it is characterized in that: described lip ring (1) is provided with outer shroud sealing lip (11), and outer shroud sealing lip (11) is provided with several protruding auxiliary seal lip ring (111).
3. according to the described metal spring of claim 2 enhanced leaktightness spare, it is characterized in that: described outer shroud sealing lip (11) is being provided with the words (112) that collude in groove on the lip.
4. according to the described metal spring of claim 1 enhanced leaktightness spare, it is characterized in that: ring sealing lip (12) in described lip ring (1) is provided with, interior ring sealing lip (12) is provided with several protruding auxiliary seal lip ring (121).
5. according to the described metal spring of claim 4 enhanced leaktightness spare, it is characterized in that: ring sealing lip (12) is being provided with the words (122) that collude in described in groove on the lip.
6. according to claim 1 or 2 or 4 described metal spring enhanced leaktightness spares, it is characterized in that: described lip ring (1) is made of filling-modified teflon or pure teflon or ultra high molecular polyethylene material structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920301357U CN201373105Y (en) | 2009-03-18 | 2009-03-18 | Metal spring enforced sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920301357U CN201373105Y (en) | 2009-03-18 | 2009-03-18 | Metal spring enforced sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373105Y true CN201373105Y (en) | 2009-12-30 |
Family
ID=41499186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920301357U Expired - Fee Related CN201373105Y (en) | 2009-03-18 | 2009-03-18 | Metal spring enforced sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373105Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791096A (en) * | 2014-02-27 | 2014-05-14 | 北京裕泰行新材料科技有限公司 | Seal ring |
| CN105697785A (en) * | 2016-04-18 | 2016-06-22 | 北京裕泰行新材料科技有限公司 | Symmetrical spring seal ring |
| CN108071625A (en) * | 2017-12-13 | 2018-05-25 | 马鞍山市荣亿密封材料有限责任公司 | A kind of ultrahigh pressure cylinder sealing structure |
| CN108417418A (en) * | 2018-05-09 | 2018-08-17 | 浙江工贸职业技术学院 | A kind of electric switch dynamic sealing device |
| CN109027460A (en) * | 2018-10-24 | 2018-12-18 | 山东科瑞井控系统制造有限公司 | 7 cun of hair casing metal sealing devices |
| CN109764071A (en) * | 2019-01-30 | 2019-05-17 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster with plunger gas-liquid sealing structure |
| CN110848392A (en) * | 2019-11-19 | 2020-02-28 | 潍柴动力股份有限公司 | Sealing structure and engine |
| CN111120292A (en) * | 2020-01-16 | 2020-05-08 | 苏州英赛斯智能科技有限公司 | A high pressure sealed plunger pump |
-
2009
- 2009-03-18 CN CN200920301357U patent/CN201373105Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791096A (en) * | 2014-02-27 | 2014-05-14 | 北京裕泰行新材料科技有限公司 | Seal ring |
| CN105697785A (en) * | 2016-04-18 | 2016-06-22 | 北京裕泰行新材料科技有限公司 | Symmetrical spring seal ring |
| CN108071625A (en) * | 2017-12-13 | 2018-05-25 | 马鞍山市荣亿密封材料有限责任公司 | A kind of ultrahigh pressure cylinder sealing structure |
| CN108417418A (en) * | 2018-05-09 | 2018-08-17 | 浙江工贸职业技术学院 | A kind of electric switch dynamic sealing device |
| CN109027460A (en) * | 2018-10-24 | 2018-12-18 | 山东科瑞井控系统制造有限公司 | 7 cun of hair casing metal sealing devices |
| CN109764071A (en) * | 2019-01-30 | 2019-05-17 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster with plunger gas-liquid sealing structure |
| CN110848392A (en) * | 2019-11-19 | 2020-02-28 | 潍柴动力股份有限公司 | Sealing structure and engine |
| CN110848392B (en) * | 2019-11-19 | 2021-11-19 | 潍柴动力股份有限公司 | Sealing structure and engine |
| CN111120292A (en) * | 2020-01-16 | 2020-05-08 | 苏州英赛斯智能科技有限公司 | A high pressure sealed plunger pump |
| CN111120292B (en) * | 2020-01-16 | 2025-07-18 | 苏州英赛斯智能科技有限公司 | High-pressure sealing plunger pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20140318 |