CN101482179A - Multi-n shaped sealing device - Google Patents
Multi-n shaped sealing device Download PDFInfo
- Publication number
- CN101482179A CN101482179A CNA2008100557274A CN200810055727A CN101482179A CN 101482179 A CN101482179 A CN 101482179A CN A2008100557274 A CNA2008100557274 A CN A2008100557274A CN 200810055727 A CN200810055727 A CN 200810055727A CN 101482179 A CN101482179 A CN 101482179A
- Authority
- CN
- China
- Prior art keywords
- seal
- seal ring
- sealing device
- shape
- seal device
- 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
Links
- 238000007789 sealing Methods 0.000 title claims description 47
- 238000005516 engineering process Methods 0.000 claims description 6
- 238000007363 ring formation reaction Methods 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 12
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/14—Shaft sealings operative only when pump is inoperative
- F04D29/146—Shaft sealings operative only when pump is inoperative especially adapted for liquid pumps
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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
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
-
- 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
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
- F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a multi-seal device which has the advantages of pressure resistance, low medium leakage amount and long service life. The multi-seal device comprises a seal device block 5 which is provided with a groove 8 and a plurality of seal ring arranging slots 4 on a cylindrical working surface, channel holes 9 which induce a medium into the inner cavities of the seal rings on the end surface of the seal device block 5, as well as a hollow seal ring 1 and a hollow seal ring 2 provided with a lug boss 3 on a working surface; and the channel holes 9 can be shared, and can also be independently separated. The multi-seal device can replace a traditional rubber seal device, and is suitable for producing various mechanical devices and carrying out alternation on the devices employing the traditional rubber seal device. As the invention is multiply sealed and the section shape of the seal element thereof is of n-shape, the invention is called an n-shaped multi-seal device. Compared with the existing various seal devices, the seal device has the advantages and characteristics of pressure resistance, small leakage, long service life, and the like. The original devices using other seal devices can use the seal device of the invention only by being simply altered and processed.
Description
The present invention relates to technical field of sealing technology.
Sealing technique guarantees safe operation for (oil, gas, the water) that prevents electronic product equipment " three leak ", improves service behaviour and efficient, energy saving, and the protection environment is significant.
As everyone knows, generally adopt traditional rubber parts seal arrangements such as O type, Yx type, U type at present when working pressure surpasses certain numerical value, rubber sealing element will produce the deformation of surrender property, working medium will pass sealing strip and cause dielectric leakage, makes seal failure, gradually leads to the equipment work decrease in efficiency, energy consumption increases, the formation working environment pollutes, and serious generation production safety accident causes economic loss and casualties.Owing to be to realize sealing from the external compression seal ring of sealing circle body, tradition rubber parts seal arrangement during by assembling extrusion-deformation generation prestressing force reach sealing effect, rubber seal is in deformation state for a long time like this, easily produce permanent deformation forfeiture elasticity, can not keep good sealing effect the long period, operating life is short.Not only deficiency in economic performance also causes the consumption of material resources big.Along with the development of the modernization of industry, automation, the service condition of electronic product is harsh day by day, makes that the applying working condition of rubber seal is more and more harsher, to technology capability such as Sealing is withstand voltage constantly propose to upgrade, higher requirement.
It is a kind of withstand voltage that purpose of the present invention will provide, the seal arrangement of long service life.Can replace traditional rubber parts seal arrangement, be applicable to and produce various novel mechanical equipment and the equipment that adopts traditional rubber parts seal arrangement is transformed.Owing to adopted multi-sealedly, and its seal element sectional shape is n shape, so be called multi-n shaped sealing device.
Technological scheme of the present invention is achieved in that
Have seal arrangement piece 5 groove 8, that have a plurality of seal ring mounting grooves 4 on the column working, boot media enters the hollow n shape seal ring 1,2 that has boss 3 on the port hole 9 of each seal ring inner chamber and the working surface and constitutes seal arrangement of the present invention on seal arrangement piece 5 end faces.
Be characterized in: the groove 8 that 1) some is arranged on seal arrangement piece 5 column working; Quantity is counted from zero, does not limit to requirement.2) multi-n shaped sealing device split axle seal arrangement and hole seal arrangement, it is characterized in that: axle is the outer ring with the multi-n shaped sealing device working surface; The hole is an inner ring with the multi-n shaped sealing device working surface; 3) have a plurality of seal ring mounting grooves 4 on the seal arrangement piece 5, the road is several to be required to decide according to technology capability, and quantity is not limit; 4) have port hole 9 to lead to each seal ring mounting groove 4 on seal arrangement piece 5 end faces, boot media enters the inner chamber of n shape seal ring 1,2, and port hole 9 can be shared, also can separate separately; 5) n shape seal ring 1,2 has axle seal ring 1 and hole 2 two kinds of patterns of seal ring; 6) both sides of the working surface inboard of n RunddichtringO 1,2 and seal ring constitute hollow cavity, boss 3 is arranged on the sealed working face of seal ring, boss 3 quantity are decided according to service behaviour such as the pressure of usage requirement and technical parameter, and quantity is counted from zero, do not limit to requirement.7) n shape seal ring 1,2 can directly connect the connection part use that the equipment of being placed on need seal.
Because seal arrangement of the present invention adopted multiple tracks n shape seal ring, form multi-sealedly, thereby can obtain better sealing effect, reduce dielectric leakage greatly, further prolonged operating life.Compare with existing various types of seal arrangements, have withstand voltage, good sealing effect, excellent characteristics such as leakage is little, the life-span is long.Can be used for various dissimilar equipment, use the equipment of other types seal arrangement originally,, can use seal arrangement of the present invention as long as process through simple the transformation.
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the multi-n shaped sealing device cut-away view of shared same port hole
Fig. 2 be the multi-n shaped sealing device cut-away view in hole, autonomous channel from Fig. 1, Fig. 2 as can be seen, on seal arrangement piece 5, have a plurality of seal ring mounting grooves 4, the groove 8 that some is arranged on the column working of seal arrangement piece 5, n shape seal ring 1,2 just is installed in the seal ring mounting groove 4; The end face of seal arrangement piece 5 has some port holes 9 and each seal ring mounting groove 4 to be interconnected.Port hole 9 can be shared, also can separate separately.
Fig. 3 is an axle n shape seal ring cut-away view
Axle among Fig. 3 is with the boss 3 that some is arranged on n shape seal ring 1 its sealed working face, and the external diameter L of axle usefulness n shape seal ring 1 is close with the internal diameter of cylinder body 7.
Fig. 4 is a hole n shape seal ring cut-away view
Hole among Fig. 4 is with the boss 3 that some is arranged on n shape seal ring 2 its sealed working faces, and the hole is close with the external diameter of the inside diameter D of n shape seal ring 2 and piston rod 6.
Fig. 5 is multi-n shaped sealing device is used as piston sealing device in oil hydraulic cylinder a cut-away view.
As can be seen from Figure 5, multi-n shaped sealing device is during as the piston sealing device of liquid, pneumatic cylinder, has a plurality of seal ring mounting grooves 4 in close the two end faces of piston block 10, and n shape seal ring 1 just is installed in each mounting groove 4 respectively; The both ends of the surface of piston block 10 have some port holes 9 and lead to each seal ring mounting groove 4, medium can be imported the inner chamber of axle with n shape seal ring 1, after liquid, pneumatic cylinder are started working, have been full of medium in the seal ring inner chamber.Because the effect of pretightening force when being subjected to installing, n shape seal ring 1 working surface is close to the sealed working face of cylinder body 7.When pressure strengthens, pressure medium is reached the inner chamber of seal ring via end face port hole 9 by medium, axle is closely contacted with the sealed working face of n shape seal ring 1 sealed working face and cylinder body 7, and each road axle forms labyrinth seal with n shape seal ring 1, axle with the groove 8 on the column working of boss 3 on n shape seal ring 1 sealed working face and piston block 10, medium by the time pressure progressively decay, medium can not take place pass through leakage phenomenon, obtain fabulous sealing effect.And pressure medium is big more, and axle is fitted tight more with the sealed working face of n shape seal ring 1 sealed working face and cylinder body 7, and sealing effect is good more, as long as the sealing circle body is not crushed, sealing effect always is well.Owing to adopted multiple tracks n shape seal ring, operating life has obtained prolongation, and axle is required to decide by technology capability with the road number of n shape seal ring 1.
Multi-n shaped sealing device also can be used as the end bracket enclosed device of liquid, pneumatic cylinder, and end cap uses multi-n shaped sealing device just as the piston multi-n shaped sealing device.Shown in Fig. 5 one end cap n type seal arrangement, have port hole 9 on the corresponding position of cylinder inner side end of end cap 12 and lead to each seal ring mounting groove 4, can be with the inner chamber of medium introduction hole with n shape seal ring 2, after liquid, pneumatic cylinder are started working, be full of medium in the seal ring hollow cavity.During the work of liquid, pneumatic cylinder, pressure medium reaches the inner chamber of seal ring by medium via end face port hole 9, and the hole is closely contacted with the sealed working face of n shape seal ring 2 sealed working faces and piston rod 11.And each hole, road forms labyrinth seal with n shape seal ring 2, hole with the groove 8 on the column working of boss 3 on n shape seal ring 2 sealed working faces and end cap 12, medium by the time pressure progressively decay, medium can not take place pass through leakage phenomenon, obtain fabulous sealing effect.And pressure medium is big more, the hole is fitted tight more with the sealed working face of n shape seal ring 2 sealed working faces and piston rod 11, sealing effect is good more, as long as the sealing circle body is not crushed, sealing effect always is that well the hole is required to decide by technology capability with the road number of n shape seal ring 2.
From figure, can know and find out, in the multi-n shaped sealing device, pressure medium is exerted pressure to the sealing circle body from the seal ring inner chamber, make on the seal ring sealed working face connection part that tightly equipment of being fitted in need seal, boss 3 on each road n shape seal ring, the n shape seal ring working surface and the groove on seal arrangement piece 5 column working 8 form labyrinth seal, stop the leakage of medium effectively, obtain extraordinary sealing effect, so the withstand voltage Applicable scope of multi-n shaped sealing device is far longer than traditional rubber parts seal arrangement.Simultaneously, pressure medium is that the crush seal circle body is realized sealing internally, and whole rubber seal is evenly stressed under the extruding of pressure medium, and deformation is very little, can not produce permanent set; N shape seal ring 1,2 can keep good elasticity in considerable time, so the operating life of n shape seal ring is more much longer than traditional rubber parts seal arrangement seal ring.Seal arrangement of the present invention is compared with existing various types of seal arrangements, has excellent characteristics such as high pressure resistant, that dielectric leakage is little, the life-span is long.This seal arrangement can be used as the seal arrangement of piston apparatus, end cap and various dissimilar equipment, and n shape seal ring can directly use.
Claims (8)
1. multi-n shaped sealing device.It is characterized in that: by having seal arrangement piece 5 groove 8, that have a plurality of seal ring mounting grooves 4 on the column working, boot media enters the port hole 9 and the n shape seal ring formation of seal ring inner chamber on seal arrangement piece 5 end faces.
2. multi-n shaped sealing device split axle according to claim 1 seal arrangement and hole seal arrangement is characterized in that: axle is the outer ring with the multi-n shaped sealing device working surface; The hole is an inner ring with the multi-n shaped sealing device working surface.
3. the seal ring mounting groove 4 that has some on the column working of the seal arrangement piece 5 of multi-n shaped sealing device according to claim 1,, the road is several to be required surely according to technology capability, and quantity is not limit.
4. the port hole 9 that has some on seal arrangement piece 5 end faces of multi-n shaped sealing device according to claim 1 leads to each seal ring mounting groove 4, and port hole 9 can be shared, also can separate separately.
5. the groove 8 that has some on the column working of the seal arrangement piece 5 of multi-n shaped sealing device according to claim 1, quantity are counted from zero, do not limit to requirement.
6. n shape seal ring according to claim 1 has axle n shape seal ring 1 and hole 2 two kinds of patterns of n shape seal ring.
7.n the working surface inboard of shape seal ring 1,2 and the both sides of seal ring constitute hollow cavity, have boss 3 on the sealed working face of seal ring, its quantity is counted from zero, does not limit to requirement.
8. n shape seal ring 1,2 according to claim 6 can be used for motive sealing, also can be used for static seal; N shape seal ring 1,2 can be placed in the seal ring mounting groove 4 and use, and also can directly use.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100557274A CN101482179A (en) | 2008-01-08 | 2008-01-08 | Multi-n shaped sealing device |
| PCT/CN2009/070029 WO2009092300A1 (en) | 2008-01-08 | 2009-01-05 | Multi-seal n-type sealing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100557274A CN101482179A (en) | 2008-01-08 | 2008-01-08 | Multi-n shaped sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101482179A true CN101482179A (en) | 2009-07-15 |
Family
ID=40879409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100557274A Pending CN101482179A (en) | 2008-01-08 | 2008-01-08 | Multi-n shaped sealing device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101482179A (en) |
| WO (1) | WO2009092300A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588608A (en) * | 2011-01-14 | 2012-07-18 | 北京纽希液压技术研究所 | Compound sealing device |
| CN102954225A (en) * | 2011-11-30 | 2013-03-06 | 三峡大学 | Reciprocating movement type internal pressure compensation sealing piece |
| CN103387192A (en) * | 2012-05-07 | 2013-11-13 | 北京纽希液压技术研究所 | Novel jack |
| CN103388604A (en) * | 2012-05-07 | 2013-11-13 | 北京纽希液压技术研究所 | Hydraulic cylinder |
| CN104314911A (en) * | 2014-08-20 | 2015-01-28 | 青岛开世密封工业有限公司 | Pneumatic sealing device |
| CN103352979B (en) * | 2013-08-03 | 2015-11-18 | 刘立起 | Drum type supercharging many rings compound seal plunger |
| CN109653272A (en) * | 2018-11-20 | 2019-04-19 | 广州文冲船厂有限责任公司 | A kind of rake pipe Butt sealing structure of drag suction dredger |
| CN109737204A (en) * | 2019-03-07 | 2019-05-10 | 兰州理工大学 | A combined piston seal |
| CN112628152A (en) * | 2019-09-24 | 2021-04-09 | 苏尔寿管理有限公司 | Pump for conveying fluids |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5524109B2 (en) * | 2011-02-25 | 2014-06-18 | 三菱重工コンプレッサ株式会社 | Compressor |
| CN106936250A (en) * | 2017-05-09 | 2017-07-07 | 泰州市姜堰德力电机有限公司 | Self-sealed submersible motor |
| CN108131387A (en) * | 2018-02-07 | 2018-06-08 | 徐工集团凯宫重工南京有限公司 | A kind of compound seal shield machine slip casting bearing packet |
| CN112648019B (en) * | 2021-02-02 | 2024-06-07 | 昆明理工大学 | Flexible sealing device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4890849A (en) * | 1983-05-17 | 1990-01-02 | James Walker & Company Limited | Shaft seals |
| CN2414257Y (en) * | 1999-12-21 | 2001-01-10 | 南京奥亿达液压气动技术有限公司 | Piston H-shape oil sealing device |
| CN2483560Y (en) * | 2001-07-10 | 2002-03-27 | 蒋国华 | Pressure-compensation type radical sealing device |
| CN2509383Y (en) * | 2001-08-15 | 2002-09-04 | 南京奥亿达液压气动技术有限公司 | Reciprocating self-reversing seal piston apparatus |
| CN2520436Y (en) * | 2002-01-23 | 2002-11-13 | 周磊 | W-inner cavity medium pressure self-compensation sealing ring |
| CN2540525Y (en) * | 2002-04-29 | 2003-03-19 | 上海日立电器有限公司 | Piston with lubricating film coated layer |
| CN1904416A (en) * | 2005-07-25 | 2007-01-31 | 周承惠 | Inner cavity medium pressure self compensated composite sealing ring |
-
2008
- 2008-01-08 CN CNA2008100557274A patent/CN101482179A/en active Pending
-
2009
- 2009-01-05 WO PCT/CN2009/070029 patent/WO2009092300A1/en not_active Ceased
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588608A (en) * | 2011-01-14 | 2012-07-18 | 北京纽希液压技术研究所 | Compound sealing device |
| CN102954225A (en) * | 2011-11-30 | 2013-03-06 | 三峡大学 | Reciprocating movement type internal pressure compensation sealing piece |
| CN102954225B (en) * | 2011-11-30 | 2015-01-28 | 三峡大学 | Reciprocating movement type internal pressure compensation sealing piece |
| CN103387192A (en) * | 2012-05-07 | 2013-11-13 | 北京纽希液压技术研究所 | Novel jack |
| CN103388604A (en) * | 2012-05-07 | 2013-11-13 | 北京纽希液压技术研究所 | Hydraulic cylinder |
| CN103352979B (en) * | 2013-08-03 | 2015-11-18 | 刘立起 | Drum type supercharging many rings compound seal plunger |
| CN104314911A (en) * | 2014-08-20 | 2015-01-28 | 青岛开世密封工业有限公司 | Pneumatic sealing device |
| CN109653272A (en) * | 2018-11-20 | 2019-04-19 | 广州文冲船厂有限责任公司 | A kind of rake pipe Butt sealing structure of drag suction dredger |
| CN109653272B (en) * | 2018-11-20 | 2021-05-11 | 广州文冲船厂有限责任公司 | Harrow pipe butt joint sealing structure of trailing suction hopper dredger |
| CN109737204A (en) * | 2019-03-07 | 2019-05-10 | 兰州理工大学 | A combined piston seal |
| CN109737204B (en) * | 2019-03-07 | 2020-10-02 | 兰州理工大学 | Combined piston sealing element |
| CN112628152A (en) * | 2019-09-24 | 2021-04-09 | 苏尔寿管理有限公司 | Pump for conveying fluids |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009092300A1 (en) | 2009-07-30 |
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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 | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20090715 |