CN102052464A - Composite structural rubber seal ring with self-tightening function - Google Patents
Composite structural rubber seal ring with self-tightening function Download PDFInfo
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- CN102052464A CN102052464A CN 201010537148 CN201010537148A CN102052464A CN 102052464 A CN102052464 A CN 102052464A CN 201010537148 CN201010537148 CN 201010537148 CN 201010537148 A CN201010537148 A CN 201010537148A CN 102052464 A CN102052464 A CN 102052464A
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- seal ring
- rubber seal
- seal
- ring
- shape rubber
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Abstract
The invention relates to the technical field of sealing and provides a composite structural rubber seal ring with a self-tightening function. The seal ring comprises a C-shaped rubber seal ring (1) and an O-shaped rubber seal ring (2), wherein the C-shaped rubber seal ring (1) is in a tetrahedron structure and has an inner cavity; the section of the C-shaped rubber seal ring is provided with four edges; the junction part of two edges is provided with an opening which is communicated with the inner cavity; and the O-shaped rubber seal ring (2) is positioned in the inner cavity of the C-shaped rubber seal ring (1). The seal ring is applied to static sealing and dynamic sealing of a device, and the pressure bearing capability of the seal ring is larger than 10MPa. The seal ring has a certain angle among all surfaces under a free condition; under the working condition of the seal ring, the cavity is filled with pressure; and even if the seal ring is worn, the seal ring still can keep tight fit with a sealed part under the action of the pressure.
Description
Technical field
The present invention relates to technical field of sealing technology, relate generally to a kind of composite structure rubber seal, can be used for static seal, the motive sealing of device with self fastening function.
Background technique
Traditional rubber seal has shapes such as O shape, V-arrangement, Y shape, and wherein O-ring seals is most widely used, and can be used for the sealing of static seal, reciprocating dynamic seal and low speed swivel gear.V-ring is a kind of elastic rubber sealing ring of axial action, does not have means of press seals as rotating shaft.Y-shaped ring is mainly used in the reciprocating dynamic seal device.
The seal action of rubber seal mainly is the pretightening force when borrow installing and makes seal ring produce distortion by the pressure of working medium when work to reach.Pretightening force does not reach seal request inadequately, the excessive elasticity that influences seal ring of pretightening force, and particularly during motive sealing, pretightening force greatly also will increase frictional force, accelerate the abrasion of seal ring, and the wearing and tearing of seal ring are that dynamic seal apparatus produces the one of the main reasons of leaking.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of composite structure rubber seal with self fastening function, the permanently effective sealing of implement device, and it is safe and reliable that it is had, the life-span is long, and compact structure, characteristic of simple.
The present invention finishes the technological scheme that its invention task takes: a kind of composite structure rubber seal with self fastening function is made up of " C " shape rubber seal and " O " shape rubber ring; Described " C " shape rubber seal is the tetrahedral structure with internal cavities; Described " C " shape rubber seal cross section has four limits, and the connecting part on two limits wherein has opening, and described opening is communicated with internal cavities, and described end face with opening is divided into two faces by opening; Described " O " shape rubber ring is positioned at the internal cavities of " C " shape rubber seal.
Described two faces that are separated by opening, be outer dorsad of elasticity under the free state, described two faces that are separated into by opening are fitted naturally by the effect and the sealing surface of the elastic force of seal ring under the assembling condition, and working state under pressure, seal ring compressive strain is pasted tighter and tighter with sealing surface.
The internal cavities of described " C " shape rubber seal has at least a part identical with the sphere of " O " shape rubber ring.
When in the Seal cage pressure being arranged, the cavity of " C " shape rubber seal is under the effect of pressure, and its outer side wall and sealed fit tightly, thereby reach sealing effect; The round section joint ring that is contained in " C " shape seal ring play supporting role, and guarantees that pressure can enter cavity all the time.
The present invention is applied to static seal, the motive sealing of device, and bearing capacity is greater than 10MPa.Between each face several angle is arranged under the sealing circle free state, it is full of pressure in working order down in C shape chamber, even remain fitting tightly between seal ring and sealed under also can the effect at pressure when wearing and tearing appear in seal ring.
Description of drawings
Fig. 1 is a kind of composite structure rubber seal free state sectional schematic diagram with self fastening function.
Fig. 2 is a kind of composite structure rubber seal free-body diagram with self fastening function under the pressure effect.
Fig. 3 is used for the schematic representation of sleeve expansion joint for the present invention.
Among the figure, 1, " C " shape rubber seal, 2, " O " shape rubber ring, 3, workpiece 1,4, workpiece 2,5, outer sleeve, 6, the core tube.
Embodiment
In conjunction with the accompanying drawings and embodiments, the present invention is specified.
Fig. 1, a kind of composite structure rubber seal with self fastening function shown in Figure 2 are made up of " C " shape rubber seal and " O " shape rubber ring; Described " C " shape rubber seal is the tetrahedral structure with internal cavities; The cross section of described " C " shape rubber seal has four limits, and wherein the connecting part on two limits has opening, and described opening is communicated with internal cavities; Described " O " shape rubber ring is positioned at the internal cavities of " C " shape rubber seal.The wherein a part of sphere kiss of " O " shape rubber ring association leans against on the inwall of " C " shape rubber seal internal cavities.As shown in Figure 1, described two faces that are separated by opening are outer dorsad of elasticity under the free state.As shown in Figure 2, described two faces that are separated by opening, working state under pressure, seal ring compressive strain realizes sealing under high pressure.
Described a kind of composite structure rubber seal with self fastening function, the outer dorsad (see figure 1) of opening of elasticity under the free state, putting into behind the Seal cage of sealed device its outer side surface and workpiece 1 and workpiece 2 fits, when in the device pressure being arranged, be full of pressure in the cavity of seal ring, producing distortion in the effect lower seal of pressure, that its and workpiece 1 and workpiece 2 are pasted more is tight more, thus the realization selfsealings.Be contained in the round section joint ring in " C " shape seal ring, play supporting role, to guarantee the opening of " C " shape seal ring.
As shown in Figure 3, be the application example that self-tightening combined seal ring sleeve expansion joint is housed, can be used for the compensation of city heat supply engineering pipeline.Its part 5 outer sleeves are exactly workpiece 1, and part 6 core tubes are exactly workpiece 2, and this sleeve expansion joint can reach 2000 times and not leak when carrying out the displacement fatigue test, be 10 times of ordinary cartridge compensator.
Claims (3)
1. the composite structure rubber seal with self fastening function is characterized in that: be made up of " C " shape rubber seal (1) and " O " shape rubber ring (2); Described " C " shape rubber seal (1) is for having the tetrahedral structure of internal cavities, and the cross section of described " C " shape rubber seal has four limits, and wherein the connecting part on two limits has opening, and described opening is communicated with internal cavities; Described " O " shape rubber ring (2) is positioned at the internal cavities of " C " shape rubber seal (1).
2. according to the described a kind of composite structure rubber seal of claim 1 with self fastening function, it is characterized in that: described two faces that are separated by opening, be outer dorsad of elasticity under the free state, working state is under pressure, seal ring compressive strain is pasted tighter and tighter with sealing surface.
3. according to the described a kind of composite structure rubber seal with self fastening function of claim 1, it is characterized in that: the internal cavities of described " C " shape rubber seal has at least a part identical with the sphere of " O " shape rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010537148 CN102052464A (en) | 2010-11-10 | 2010-11-10 | Composite structural rubber seal ring with self-tightening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010537148 CN102052464A (en) | 2010-11-10 | 2010-11-10 | Composite structural rubber seal ring with self-tightening function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102052464A true CN102052464A (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010537148 Pending CN102052464A (en) | 2010-11-10 | 2010-11-10 | Composite structural rubber seal ring with self-tightening function |
Country Status (1)
| Country | Link |
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| CN (1) | CN102052464A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506172A (en) * | 2011-11-21 | 2012-06-20 | 哈尔滨电机厂有限责任公司 | Triangular air shroud ring sealing structure for hydroturbine |
| CN105628307A (en) * | 2015-12-24 | 2016-06-01 | 江苏金通灵流体机械科技股份有限公司 | External circle sealing device used for sealing of baffle plate and baffle plate thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090634A (en) * | 1993-12-16 | 1994-08-10 | 冶金工业部自动化研究院 | Self balance combined high pressure rotary sealing ring |
| CN2204883Y (en) * | 1994-06-24 | 1995-08-09 | 车恒德 | Assembled sealer with C-shape slip-ring |
| US20050184468A1 (en) * | 2004-02-25 | 2005-08-25 | Mitsubishi Cable Industries, Ltd. | Sealing material |
| CN201170065Y (en) * | 2008-03-26 | 2008-12-24 | 沧州市德泰克钻井装备有限公司 | Seal assembly of sea drill platform current divider |
| CN101608723A (en) * | 2008-06-21 | 2009-12-23 | 洛阳双瑞特种装备有限公司 | A kind of non-maintaining sleeve compensator with double sealing structure |
| CN101769381A (en) * | 2010-03-01 | 2010-07-07 | 北京交通大学 | Magnetic liquid and C-shaped slip ring combination type reciprocating shaft sealing device |
-
2010
- 2010-11-10 CN CN 201010537148 patent/CN102052464A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090634A (en) * | 1993-12-16 | 1994-08-10 | 冶金工业部自动化研究院 | Self balance combined high pressure rotary sealing ring |
| CN2204883Y (en) * | 1994-06-24 | 1995-08-09 | 车恒德 | Assembled sealer with C-shape slip-ring |
| US20050184468A1 (en) * | 2004-02-25 | 2005-08-25 | Mitsubishi Cable Industries, Ltd. | Sealing material |
| CN201170065Y (en) * | 2008-03-26 | 2008-12-24 | 沧州市德泰克钻井装备有限公司 | Seal assembly of sea drill platform current divider |
| CN101608723A (en) * | 2008-06-21 | 2009-12-23 | 洛阳双瑞特种装备有限公司 | A kind of non-maintaining sleeve compensator with double sealing structure |
| CN101769381A (en) * | 2010-03-01 | 2010-07-07 | 北京交通大学 | Magnetic liquid and C-shaped slip ring combination type reciprocating shaft sealing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506172A (en) * | 2011-11-21 | 2012-06-20 | 哈尔滨电机厂有限责任公司 | Triangular air shroud ring sealing structure for hydroturbine |
| CN105628307A (en) * | 2015-12-24 | 2016-06-01 | 江苏金通灵流体机械科技股份有限公司 | External circle sealing device used for sealing of baffle plate and baffle plate thereof |
| CN105628307B (en) * | 2015-12-24 | 2018-12-07 | 江苏金通灵流体机械科技股份有限公司 | A kind of outer circle sealing device and its baffle for guard seal |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110511 |