CN103062407A - Square coaxial sealing element - Google Patents
Square coaxial sealing element Download PDFInfo
- Publication number
- CN103062407A CN103062407A CN2012105905063A CN201210590506A CN103062407A CN 103062407 A CN103062407 A CN 103062407A CN 2012105905063 A CN2012105905063 A CN 2012105905063A CN 201210590506 A CN201210590506 A CN 201210590506A CN 103062407 A CN103062407 A CN 103062407A
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- China
- Prior art keywords
- square
- square ring
- sealing element
- ring
- axial
- 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 abstract description 14
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000005060 rubber Substances 0.000 claims description 7
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 14
- 239000010720 hydraulic oil Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
Images
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- Sealing Devices (AREA)
Abstract
The invention discloses a square coaxial sealing element. The square coaxial sealing element comprises a square ring and an O-shaped ring, the O-shaped ring is arranged on the inner side of the square ring, and chamfers are mounted on two sides of an outer circle of the square ring respectively. According to the square coaxial sealing element, the chamfers are added on the two sides of the outer circle of the square ring respectively, a certain guiding function can be achieved when the square coaxial sealing element is installed, the square coaxial sealing element is prevented from being sheared and damaged by a cylinder body during installation, and during usage, a sealing ring is not prone to be squeezed out from a gap between the cylinder body and a piston. Besides, oil guide grooves are added on two axial end faces of the square ring, inertia and lag of the square coaxial sealing element due to rapidly starting of a hydraulic oil cylinder can be well prevented, hydraulic oil can rapidly and effectively enter into a piston groove to force the O-shaped ring to rapidly deform, and thereby the sealing performance is guaranteed. The square coaxial sealing element is simple in structure, small in required installing space and convenient to install.
Description
Technical field
The present invention relates to a kind of rectangle co-axial seal for the hydraulic cylinder piston two way sealed, be also referred to as GSF hole square ring.
Background technique
Along with the domestic economy development, the industrial automatization of numerous domestic industrial and mining enterprise further improves, and sealed product is being played the part of important role in industrial automation, and the quality of sealed product is playing key effect aspect the fluid dynamic transmission of industrial automation.Particularly in concerning the national great type equipment of the international people's livelihood, stable, the quality of sealed product performance reliable and to the tolerance of various flowing mediums all is very important.Simultaneously, at home in the great type key equipment, adopt the Sealing of developed countries import, not only expensive, and the arrival cycle is long, causes heavy losses to enterprise during the maintenance and renovation of equipment, causes severe contamination to environment, destroy natural, ecological, and imported product can not be dealt with problems sometimes.
At present the ubiquitous problem of seal ring of hydraulic cylinder piston is: hydraulic jack has just begun to start or moment can produce interior leakage in the piston place when starting, and the pressure of liquid can increase during normal operation, thereby the contact between seal ring and cylinder body is also increased, and contact width also can increase and increase apparent in view, thereby cause the mobile surface friction drag of piston to increase, so not only reduced working efficiency, but also cause extruding the slit of seal ring between piston and cylinder body and destroy, thereby affect sealing effect.
Summary of the invention
The invention provides a kind of rectangle co-axial seal, to overcome that hydraulic jack in the prior art has just begun to start or moment can produce the problem that interior leakage and seal ring are extruded the slit between piston and cylinder body easily in the piston place when starting.
For solving the problems of the technologies described above, the invention provides a kind of rectangle co-axial seal, comprising: square ring and O shape circle, described O shape circle is arranged on the inboard of described square ring, and the both sides of described square ring cylindrical are respectively equipped with chamfering.
As preferably, the axial both ends of the surface of described square ring also are respectively arranged with oil guide slot.
As preferably, described oil guide slot has eight, and each axial end has respectively four.
As preferably, the oil guide slot of described axial both ends of the surface intersects to form miter angle.
As preferably, described oil guide slot is circular arc.
As preferably, described square ring adopts teflon and copper powder, graphite, molybdenum disulfide, carbon fiber, glass to mix.
As preferably, described O shape circle is made by rubber material.
Compared with prior art, rectangle co-axial seal of the present invention comprises: square ring and O shape circle, and described O shape circle is arranged on the inboard of described square ring, and the both sides of described square ring cylindrical are respectively equipped with chamfering.The present invention has increased chamfering in the cylindrical both sides of described square ring, can when installing, play described rectangle co-axial seal certain leading role, cylinder body is with described square ring shear fracture when preventing from installing, and in use, so that seal ring is difficult for being extruded from the gap of cylinder body and piston, also respectively set up four circular arc oil guide slot in the axial both ends of the surface of square ring in addition, just begun to start or the validity of moment sealing when starting with abundant assurance hydraulic jack.In addition, the installing spaces simple in structure, that need of described rectangle co-axial seal little, be convenient to install.
Description of drawings
Fig. 1 is the mounting structure schematic representation of rectangle co-axial seal in the embodiment of the invention;
Fig. 2 is the structural representation of square ring in the embodiment of the invention.
Among the figure: 1-square ring, 11-chamfering, 12-oil guide slot, 2-O shape circle.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.It should be noted that accompanying drawing of the present invention all adopts the form of simplification and all uses non-accurately ratio, only in order to convenient, the purpose of the aid illustration embodiment of the invention lucidly.
Please refer to Fig. 1 and Fig. 2, the invention provides a kind of rectangle co-axial seal, comprising: square ring 1 and O shape circle 2, described O shape circle 2 is arranged on the inboard of described square ring 1, and the both sides of described square ring 1 cylindrical are respectively equipped with chamfering 11.The present invention has increased chamfering 11 in the cylindrical both sides of described square ring 1, can when installing, play described rectangle co-axial seal certain leading role, cylinder body is described square ring shear fracture when preventing from installing, and in use, seal ring is difficult for being extruded from the gap of cylinder body and piston.In addition, the installing spaces simple in structure, that need of described rectangle co-axial seal little, be convenient to install.
Please refer to Fig. 2, and in conjunction with Fig. 1, as preferably, the axial both ends of the surface of described square ring 1 also are respectively arranged with oil guide slot 12, and are better, and described oil guide slot 12 is circular arc.Described oil guide slot 12 has been for O shape circle 2 provides enough, amount of deformation timely so that hydraulic oil and O shape enclose 2 can be fast or the very first time contact, avoid rectangle co-axial seal the inertia lag phenomenon to occur because of the quick startup of hydraulic jack; This design has guaranteed that hydraulic oil can contact with O shape circle 2 by square ring rapidly, makes rapidly compressive deformation of O shape circle 2, and enough pretightening forces are provided, and has effectively guaranteed the sealability when hydraulic jack starts; And design can also prevent that described rectangle co-axial seal from rotating in groove, avoided the friction of side and the piston channel side of square ring 1, so that causes wearing and tearing.Better, described oil guide slot 12 has eight, each axial end has respectively four, the oil guide slot 12 of described axial both ends of the surface intersects to form miter angle, so that entering with O shape circle 2, the abundant also multi-angle of hydraulic oil contacts, O shape ring foot enough is out of shape, has fully guaranteed reliable, the perfect sealability of square ring 1 and O shape circle 2.
Please continue with reference to Fig. 1 and 2, as preferably, described square ring 1 is mixed by teflon and copper powder, graphite, molybdenum disulfide, carbon fiber, glass.Filled polytetrafluoroethylene has been owing to added various filler, thus improved the defective such as pure teflon easy-cold flow, and have antiwear characteristic and low coefficient of friction, can adapt to the comparatively working environment of harshness.In addition, filled polytetrafluoroethylene also has good chemical stability, still can work under the high temperature and high pressure condition, and therefore, rectangle co-axial seal of the present invention still can play well seal action at condition of high voltage.
Please continue with reference to Fig. 1 and 2, as preferably, described O shape circle 2 is made by rubber material, such as nitrile butadiene rubber or fluorine rubber or other rubber.Wherein, nitrile butadiene rubber has good oil resistance, wear resistance and tightness, therefore, can play good seal action and long service life.Therefore the characteristic that fluorine rubber has equally is high temperature resistant, oil resistant and the medicine of anti-the number of chemical corrode, can keep good sealing characteristics under various environment, the selection as for other kind rubber depends primarily on working condition.
In sum, rectangle co-axial seal of the present invention comprises: square ring 1 and O shape circle 2, and described O shape circle 2 is arranged on the inboard of described square ring 1, and the both sides of described square ring 1 cylindrical are respectively equipped with chamfering 11.The present invention has increased chamfering 11 in the cylindrical both sides of described square ring 1, can when installing, play described rectangle co-axial seal certain leading role, cylinder body is with described square ring shear fracture when preventing from installing, and in use, guarantee or avoided square ring easily by the phenomenon of extruding in the gap of cylinder body and piston.In addition, the installing spaces simple in structure, that need of described rectangle co-axial seal little, be convenient to install.
Obviously, those skilled in the art can carry out various changes and modification to invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these revise and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these change and modification.
Claims (7)
1. a rectangle co-axial seal is characterized in that, comprising: square ring and O shape circle, and described O shape circle is arranged on the inboard of described square ring, and the both sides of described square ring cylindrical are respectively equipped with chamfering.
2. rectangle co-axial seal as claimed in claim 1 is characterized in that, the axial both ends of the surface of described square ring also are respectively arranged with oil guide slot.
3. square ring as claimed in claim 2 is characterized in that, described axial both ends of the surface oil guide slot has eight, and each axial end has respectively four.
4. square ring as claimed in claim 2 is characterized in that, the oil guide slot of described axial both ends of the surface intersects to form miter angle.
5. square ring as claimed in claim 2 is characterized in that, described oil guide slot is circular arc.
6. rectangle co-axial seal as claimed in claim 1 is characterized in that, described square ring adopts teflon and copper powder, graphite, molybdenum disulfide, carbon fiber, glass to mix.
7. rectangle co-axial seal as claimed in claim 1 is characterized in that, described O shape circle is made by rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105905063A CN103062407A (en) | 2012-12-29 | 2012-12-29 | Square coaxial sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105905063A CN103062407A (en) | 2012-12-29 | 2012-12-29 | Square coaxial sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103062407A true CN103062407A (en) | 2013-04-24 |
Family
ID=48105187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105905063A Pending CN103062407A (en) | 2012-12-29 | 2012-12-29 | Square coaxial sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103062407A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633105A (en) * | 2014-12-06 | 2015-05-20 | 无锡高卓流体设备有限公司 | Square co-axial seal |
| CN105889516A (en) * | 2015-01-22 | 2016-08-24 | 贵州航空发动机研究所 | Sealing device of hydraulic actuator cylinder |
| CN106567873A (en) * | 2016-11-14 | 2017-04-19 | 江门市格雷亚特流体密封技术有限公司 | PGW type piston sealing ring |
| CN106678468A (en) * | 2017-02-06 | 2017-05-17 | 江阴市长龄机械制造有限公司 | Sealing structure of large operation machinery rotation joint |
| CN107701724A (en) * | 2017-10-31 | 2018-02-16 | 苏州金牛精密机械有限公司 | A kind of seal installs guiding mechanism |
| CN108488379A (en) * | 2018-05-03 | 2018-09-04 | 中国兵器装备研究院 | A kind of 3D printing equipment cylinder body sealing device |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4614348A (en) * | 1985-10-04 | 1986-09-30 | Aeroquip Corporation | Anti-blowout seal |
| EP0434908A2 (en) * | 1989-12-06 | 1991-07-03 | Firma Carl Freudenberg | Piston or rod sealing |
| CN1071179A (en) * | 1991-09-29 | 1993-04-21 | 中国人民解放军工程兵工程学院 | Carbon-fibre reinforced polytetrafluorethylesealing sealing material and preparation method thereof |
| JPH0791552A (en) * | 1993-09-20 | 1995-04-04 | Nippon Valqua Ind Ltd | Seal device |
| JPH10213231A (en) * | 1997-01-30 | 1998-08-11 | Nok Corp | Seal device |
| JP2000081146A (en) * | 1998-09-07 | 2000-03-21 | Nok Corp | Sealing device |
| JP2001090841A (en) * | 1999-09-22 | 2001-04-03 | Bosch Braking Systems Co Ltd | Sealing device and master cylinder having the same |
| JP2003021238A (en) * | 2001-07-10 | 2003-01-24 | Nok Corp | Sealing device |
| CN1844671A (en) * | 2005-04-08 | 2006-10-11 | 沈阳气体压缩机股份有限公司 | Oil-free lubricated seal ring resistant to high temperature and high pressure |
| JP2009058003A (en) * | 2007-08-30 | 2009-03-19 | Nok Corp | Sealing device and sealing structure |
| CN101657661A (en) * | 2007-04-09 | 2010-02-24 | Nok株式会社 | Seal arrangement |
| CN101563559B (en) * | 2006-12-14 | 2012-07-18 | Nok株式会社 | Sealing device and method of manufacturing the device |
| CN203162135U (en) * | 2012-12-29 | 2013-08-28 | 太仓市明宇密封件有限公司 | Square coaxial sealing piece |
-
2012
- 2012-12-29 CN CN2012105905063A patent/CN103062407A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4614348A (en) * | 1985-10-04 | 1986-09-30 | Aeroquip Corporation | Anti-blowout seal |
| EP0434908A2 (en) * | 1989-12-06 | 1991-07-03 | Firma Carl Freudenberg | Piston or rod sealing |
| CN1071179A (en) * | 1991-09-29 | 1993-04-21 | 中国人民解放军工程兵工程学院 | Carbon-fibre reinforced polytetrafluorethylesealing sealing material and preparation method thereof |
| JPH0791552A (en) * | 1993-09-20 | 1995-04-04 | Nippon Valqua Ind Ltd | Seal device |
| JPH10213231A (en) * | 1997-01-30 | 1998-08-11 | Nok Corp | Seal device |
| JP2000081146A (en) * | 1998-09-07 | 2000-03-21 | Nok Corp | Sealing device |
| JP2001090841A (en) * | 1999-09-22 | 2001-04-03 | Bosch Braking Systems Co Ltd | Sealing device and master cylinder having the same |
| JP2003021238A (en) * | 2001-07-10 | 2003-01-24 | Nok Corp | Sealing device |
| CN1844671A (en) * | 2005-04-08 | 2006-10-11 | 沈阳气体压缩机股份有限公司 | Oil-free lubricated seal ring resistant to high temperature and high pressure |
| CN101563559B (en) * | 2006-12-14 | 2012-07-18 | Nok株式会社 | Sealing device and method of manufacturing the device |
| CN101657661A (en) * | 2007-04-09 | 2010-02-24 | Nok株式会社 | Seal arrangement |
| JP2009058003A (en) * | 2007-08-30 | 2009-03-19 | Nok Corp | Sealing device and sealing structure |
| CN203162135U (en) * | 2012-12-29 | 2013-08-28 | 太仓市明宇密封件有限公司 | Square coaxial sealing piece |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633105A (en) * | 2014-12-06 | 2015-05-20 | 无锡高卓流体设备有限公司 | Square co-axial seal |
| CN105889516A (en) * | 2015-01-22 | 2016-08-24 | 贵州航空发动机研究所 | Sealing device of hydraulic actuator cylinder |
| CN106567873A (en) * | 2016-11-14 | 2017-04-19 | 江门市格雷亚特流体密封技术有限公司 | PGW type piston sealing ring |
| CN106678468A (en) * | 2017-02-06 | 2017-05-17 | 江阴市长龄机械制造有限公司 | Sealing structure of large operation machinery rotation joint |
| CN107701724A (en) * | 2017-10-31 | 2018-02-16 | 苏州金牛精密机械有限公司 | A kind of seal installs guiding mechanism |
| CN108488379A (en) * | 2018-05-03 | 2018-09-04 | 中国兵器装备研究院 | A kind of 3D printing equipment cylinder body sealing device |
| CN108488379B (en) * | 2018-05-03 | 2023-06-20 | 中国兵器装备研究院 | Cylinder body sealing device of 3D printing equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130424 |