CN104879497B - A kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal - Google Patents
A kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal Download PDFInfo
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- CN104879497B CN104879497B CN201510134219.5A CN201510134219A CN104879497B CN 104879497 B CN104879497 B CN 104879497B CN 201510134219 A CN201510134219 A CN 201510134219A CN 104879497 B CN104879497 B CN 104879497B
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- ptfe
- polytetrafluoroethylene
- cladding
- rubber
- sealing ring
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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
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal, and it includes the sealing ring body of ring-type, and sealing ring body is made up of rubber elastomer and the polytetrafluoroethylene (PTFE) cladding being compounded on rubber elastomer.When making axle sealing ring, polytetrafluoroethylene (PTFE) cladding is located at side in rubber elastomer body, on the cross section of sealing ring body, line and plumb line between the edges at two ends of polytetrafluoroethylene (PTFE) cladding are in 45 ° of angles so that inner side and the rubber elastomer of axle CONTACT WITH FRICTION are more resistant.When making hole sealing ring, polytetrafluoroethylene (PTFE) cladding is located on the outside of rubber elastomer, on the cross section of sealing ring body, line and plumb line between polytetrafluoroethylene (PTFE) cladding edges at two ends are in 45 ° of angles so that outside and the rubber elastomer of hole wall CONTACT WITH FRICTION are more resistant.Rubber elastomer body ensure that the elasticity and toughness of sealing ring, and polytetrafluoroethylene (PTFE) cladding ensure that the wearability and self lubricity of sealing ring.
Description
Technical field
The present invention relates to reciprocal, rotation dynamic sealing field, and in particular to a kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O
Type sealing ring.
Background technology
O-ring seal is the core component of cylinder, oil cylinder, hydraulicdirectional control valve, air operated reversing valve, the stabilization of its service behaviour
Property is closely related with this base part anti-wear performance.Traditional O-ring seal is made up of gum elastomer.Due to gum bullet
Property body coefficient of friction it is big, be prone to wear out in dynamic sealing field, it is difficult to it is close to bear millions of time reciprocal, rotation the dynamics of kinematic axis
Envelope requires.
The content of the invention
In order to solve the defects of above-mentioned technology is present, it is O-shaped that the present invention provides a kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating
Sealing ring.
Technical scheme is used by the present invention realizes above-mentioned technique effect：
A kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal, include the sealing ring body of ring-type, wherein described close
Seal body is by rubber elastomer and the ring-type polytetrafluoroethylene (PTFE) cladding being compounded on the annular working face of the rubber elastomer
Form, the cross section semicircular in shape of the polytetrafluoroethylene (PTFE) cladding, on the cross section of the sealing ring body, described poly- four
Line and plumb line between the edges at two ends of PVF cladding are in 45 ° of angles.
A kind of above-mentioned polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal, the polytetrafluoroethylene (PTFE) cladding are located at
The inner side of the rubber elastomer.
A kind of above-mentioned polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal, the polytetrafluoroethylene (PTFE) cladding are located at
The outside of the rubber elastomer.
A kind of above-mentioned polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal, the thickness of the polytetrafluoroethylene (PTFE) cladding
To spend for 0.05mm~2mm, the internal diameter specification of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal is Φ 3mm~Φ 1000mm,
Section specification is Φ 2mm~Φ 100mm.
Beneficial effects of the present invention are：When the present invention is used as axle sealing ring, polytetrafluoroethylene (PTFE) cladding is located at rubber bullet
Side in property body, on the cross section of sealing ring body, line and plumb line between the edges at two ends of polytetrafluoroethylene (PTFE) cladding
In 45 ° of angles so that inner side and the rubber elastomer of axle CONTACT WITH FRICTION have more self-lubricating abrasion-resistant performance.As hole sealing ring
When, polytetrafluoroethylene (PTFE) cladding is located on the outside of rubber elastomer, on the cross section of sealing ring body, polytetrafluoroethylene (PTFE) cladding
Edges at two ends between line and plumb line be in 45 ° of angles so that outside and the rubber elastomer of hole wall CONTACT WITH FRICTION have more
Self-lubricating abrasion-resistant performance.Rubber elastomer ensure that the elasticity and toughness of sealing ring, and polytetrafluoroethylene (PTFE) cladding ensure that sealing
The self-lubricating abrasion-resistant performance of circle so that the elasticity and wearability of whole sealing ring have obtained taking into account balance.Particularly, polytetrafluoroethyl-ne
The composite design of alkene cladding special angle causes sealing ring to exceed circular section point of contact and axle as axle use or hole used time
Wall or hole wall contact.It is in 45 ° of open C type shape cornerites that ptfe sheet, which is coated on O-ring section, and thus caoutchouc elasticity obtains
Give full play to and show.O-ring after rubber and plastic is compound, anti-wear performance is both obtained, while keep the valuable jerk-finger of rubber again
Mark.
Brief description of the drawings
Fig. 1 is the present invention in the cross-sectional view as the axle used time；
Fig. 2 is the present invention in the use state figure as the axle used time；
Fig. 3 is the present invention in the cross-sectional view as the hole used time；
Fig. 4 is the present invention in the use state figure as the hole used time.
In figure：1- rubber elastomers, 2- polytetrafluoroethylene (PTFE) claddings.
Embodiment
For make to make the present invention it is further understand, referring to Figure of description and specific embodiment the present invention is made into
One step explanation：
Embodiment 1
As depicted in figs. 1 and 2, it is a kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal as axle, it is wrapped
The sealing ring body of ring-type is included, the sealing ring body is by rubber elastomer 1 and the annular working face for being compounded in the rubber elastomer 1
On ring-type polytetrafluoroethylene (PTFE) cladding 2 form.The thickness of polytetrafluoroethylene (PTFE) cladding 2 is 0.05mm~2mm, polytetrafluoroethylene (PTFE)
The internal diameter specification of rubber and plastic composite self-lubricating O-ring seal is Φ 3mm~Φ 1000mm, and section specification is Φ 2mm~Φ 100mm.
The cross section semicircular in shape of polytetrafluoroethylene (PTFE) cladding 2, it is one layer of semicircular thin slice.On the cross section of sealing ring body,
Line and plumb line between the edges at two ends of polytetrafluoroethylene (PTFE) cladding 2 are in 45 ° of angles.Polytetrafluoroethylene (PTFE) cladding 2 is located at
The inner side of rubber elastomer 1, when in use, axle are located in sealing ring body, axial wall and the polytetrafluoro of the inner side of rubber elastomer 1
The CONTACT WITH FRICTION of ethene cladding 2, the outside of rubber elastomer 1 contact with the cell wall of sealing ring resettlement groove.Due to polytetrafluoroethylene (PTFE)
Physical characteristic, the design of such a structure causes inner side to have more self-lubricating abrasion-resistant with the rubber elastomer of axial wall CONTACT WITH FRICTION
Can, reduce coefficient of friction between the two.Rubber elastomer 1 also ensure that the elasticity and toughness of sealing ring simultaneously so that whole
The elasticity and wearability of individual sealing ring have obtained taking into account balance.Especially specifically, polytetrafluoroethylene (PTFE) cladding 2 special angle
Composite design causes the contact point between polytetrafluoroethylene (PTFE) cladding 2 and axial wall to be located at the two terminal circle of polytetrafluoroethylene (PTFE) cladding 2
Section point of contact, sealing ring can carry out self-lubricating ground CONTACT WITH FRICTION with axial wall well as the axle used time.
Embodiment 2
As shown in Figure 3 and Figure 4, it is a kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal as hole, it is wrapped
The sealing ring body of ring-type is included, the sealing ring body is by rubber elastomer 1 and the annular working face for being compounded in the rubber elastomer 1
On ring-type polytetrafluoroethylene (PTFE) cladding 2 form.The thickness of polytetrafluoroethylene (PTFE) cladding 2 is 0.05mm~2mm, polytetrafluoroethylene (PTFE)
The internal diameter specification of rubber and plastic composite self-lubricating O-ring seal is Φ 3mm~Φ 1000mm, and section specification is Φ 2mm~Φ 100mm.
The cross section semicircular in shape of polytetrafluoroethylene (PTFE) cladding 2, it is one layer of semicircular thin slice.On the cross section of sealing ring body,
Line and plumb line between the edges at two ends of polytetrafluoroethylene (PTFE) cladding 2 are in 45 ° of angles.Polytetrafluoroethylene (PTFE) cladding 2 is located at
The outside of rubber elastomer 1, when in use, sealing ring are embedded on reciprocal, rotation piston, outside hole wall and rubber elastomer 1
The CONTACT WITH FRICTION of polytetrafluoroethylene (PTFE) cladding 2 of side, the inner side of rubber elastomer 1 contact with the annular arrangements groove cell wall of piston.By
In the physical characteristic of polytetrafluoroethylene (PTFE), the design of such a structure causes outside and the rubber elastomer 1 of hole wall CONTACT WITH FRICTION to have more
Self-lubricating abrasion-resistant performance, reduce coefficient of friction between the two.Simultaneously rubber elastomer 1 also ensure that sealing ring elasticity and
Toughness so that the elasticity and wearability of whole sealing ring have obtained taking into account balance.Especially specifically, polytetrafluoroethylene (PTFE) cladding
The composite design of 2 special angles causes the contact point between polytetrafluoroethylene (PTFE) cladding 2 and hole wall to be located at polytetrafluoroethylene (PTFE) cladding
The both ends circular section point of contact of body 2, sealing ring can carry out self-lubricating ground CONTACT WITH FRICTION with hole wall well as the hole used time.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention, the protection domains of application claims by appended claims and its
Equivalent defines.
Claims (4)
1. a kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal, include the sealing ring body of ring-type, it is characterised in that
The sealing ring body is by rubber elastomer and the ring-type polytetrafluoroethylene (PTFE) being compounded on the annular working face of the rubber elastomer
Cladding is formed, the cross section semicircular in shape of the polytetrafluoroethylene (PTFE) cladding, on the cross section of the sealing ring body, institute
It is in 45 ° of angles that line between the edges at two ends of polytetrafluoroethylene (PTFE) cladding, which is stated, with plumb line.
A kind of 2. polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal according to claim 1, it is characterised in that institute
State the inner side that polytetrafluoroethylene (PTFE) cladding is located at the rubber elastomer.
A kind of 3. polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal according to claim 1, it is characterised in that institute
State the outside that polytetrafluoroethylene (PTFE) cladding is located at the rubber elastomer.
A kind of 4. polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal according to Claims 2 or 3, it is characterised in that
The thickness of the polytetrafluoroethylene (PTFE) cladding is 0.05mm~2mm, polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal it is interior
Footpath specification is Φ 3mm~Φ 1000mm, and section specification is Φ 2mm~Φ 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134219.5A CN104879497B (en) | 2015-03-25 | 2015-03-25 | A kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134219.5A CN104879497B (en) | 2015-03-25 | 2015-03-25 | A kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104879497A CN104879497A (en) | 2015-09-02 |
| CN104879497B true CN104879497B (en) | 2018-02-13 |
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|---|---|---|---|
| CN201510134219.5A Active CN104879497B (en) | 2015-03-25 | 2015-03-25 | A kind of polytetrafluoroethylene (PTFE) rubber and plastic composite self-lubricating O-ring seal |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3431808B1 (en) | 2016-03-14 | 2022-11-16 | Nok Corporation | Buffer stopper |
| CN108331030A (en) * | 2018-03-22 | 2018-07-27 | 深圳蓝盾防水构造技术有限公司 | Prefabricated assembled concrete piping lane seam waterproof constructs and engineering method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5104132A (en) * | 1990-04-23 | 1992-04-14 | Nippon Piston Ring Co., Ltd. | Piston ring having nitriding layer and composite ni-b plating layer |
| CN2699064Y (en) * | 2004-05-17 | 2005-05-11 | 汪建 | Tetrafluoroethlene coated rubber O-shaped ring |
| CN2711468Y (en) * | 2004-04-21 | 2005-07-20 | 金华市科达氟化橡塑有限公司 | Fluorinated rubber O-shaped seal ring |
| CN201090731Y (en) * | 2007-08-27 | 2008-07-23 | 程麒 | High pressure self-lubricating Y-shaped seal ring |
| CN201593606U (en) * | 2010-02-24 | 2010-09-29 | 谭熙宁 | Rectangular sealing ring |
| CN101881336A (en) * | 2009-03-06 | 2010-11-10 | 通用汽车环球科技运作公司 | The lip ring of band coating |
| CN104358871A (en) * | 2014-12-03 | 2015-02-18 | 上海康大橡胶制品制造有限公司 | O-shaped ring |
-
2015
- 2015-03-25 CN CN201510134219.5A patent/CN104879497B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5104132A (en) * | 1990-04-23 | 1992-04-14 | Nippon Piston Ring Co., Ltd. | Piston ring having nitriding layer and composite ni-b plating layer |
| CN2711468Y (en) * | 2004-04-21 | 2005-07-20 | 金华市科达氟化橡塑有限公司 | Fluorinated rubber O-shaped seal ring |
| CN2699064Y (en) * | 2004-05-17 | 2005-05-11 | 汪建 | Tetrafluoroethlene coated rubber O-shaped ring |
| CN201090731Y (en) * | 2007-08-27 | 2008-07-23 | 程麒 | High pressure self-lubricating Y-shaped seal ring |
| CN101881336A (en) * | 2009-03-06 | 2010-11-10 | 通用汽车环球科技运作公司 | The lip ring of band coating |
| CN201593606U (en) * | 2010-02-24 | 2010-09-29 | 谭熙宁 | Rectangular sealing ring |
| CN104358871A (en) * | 2014-12-03 | 2015-02-18 | 上海康大橡胶制品制造有限公司 | O-shaped ring |
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| Publication number | Publication date |
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| CN104879497A (en) | 2015-09-02 |
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