CN103953730B - A kind of combined stuffing ring - Google Patents
A kind of combined stuffing ring Download PDFInfo
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- CN103953730B CN103953730B CN201410179556.1A CN201410179556A CN103953730B CN 103953730 B CN103953730 B CN 103953730B CN 201410179556 A CN201410179556 A CN 201410179556A CN 103953730 B CN103953730 B CN 103953730B
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- annular groove
- ring body
- graphite annulus
- pure graphite
- ring
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Abstract
The invention discloses a kind of combined stuffing ring, belong to sealing member technical field, including the first ring body and second ring body symmetrically arranged with described first ring body, it is provided with first annular groove on described first ring body, second annular groove symmetrical with described first annular groove it is provided with on described second ring body, being provided with pure graphite annulus between described first annular groove and described second annular groove, the surface of described pure graphite annulus matches with described first annular groove and described second annular groove.Compared with prior art, the surface of the pure graphite annulus of the present invention matches with first annular groove and the second annular groove, and then become face from linear contact lay between pure graphite annulus and annular groove and contact, can effectively reduce leakage radially, and possess certain resilience, pure graphite annulus is positioned at middle part, when by upper and lower extruding, internal diameter diminishes, and external diameter becomes big, axle can be held tightly and cavity wall prevents axial leakage, also there is novel structure, convenient disassembly, the advantage such as quick for installation.
Description
Technical field
The invention belongs to sealing member technical field, particularly relate to a kind of combined stuffing ring.
Background technology
Packing ring be a kind of be applicable to oil, chemical industry and some there is the environment of the strong corrosive medias such as soda acid, be installed on the mechanical seal product of various slewing, reciprocating pump, valve etc..Common are carbon packing ring, its structure in the form of a ring, is to be wound around compacting by mould after the clipped processing of soft graphite to form, and it produces and installs relative convenient, is one of environmental protection row airtight and watertight padding that current cost performance is higher.
But, packing ring structure of the prior art is the most single, graphite material itself is the most crisp, frangible, moreover, the upper surface of carbon packing ring and outer peripheral face joint portion and lower surface run into friction with outer peripheral face joint portion during installing and using and collision rift easily causes abrasion, causes sealing to reduce, easily cause leakage, and then bigger economic loss can be caused.The problems referred to above, it would be highly desirable to solve.
Summary of the invention
The present invention is directed to deficiency of the prior art, it is provided that a kind of combined stuffing ring, decrease coefficient of friction, better tightness.
In order to solve above-mentioned technical problem, the present invention is addressed by following technical proposals: a kind of combined stuffing ring, including the first ring body and second ring body symmetrically arranged with described first ring body, it is provided with first annular groove on described first ring body, second annular groove symmetrical with described first annular groove it is provided with on described second ring body, being provided with pure graphite annulus between described first annular groove and described second annular groove, the surface of described pure graphite annulus matches with described first annular groove and described second annular groove；The outboard bonds of described first ring body has braiding to strengthen packing, and the outside of described second ring body is also bonded with braiding and strengthens packing.So arrange, the surface of pure graphite annulus matches with first annular groove and the second annular groove, and then become face from linear contact lay between pure graphite annulus and annular groove and contact, can effectively reduce leakage radially, and possess certain resilience, pure graphite annulus is positioned at middle part, when by upper and lower extruding, internal diameter diminishes, and external diameter becomes big, axle and cavity wall can be held tightly, and then prevent axial leakage.
In order to obtain superior technique effect, further technological improvement is, it is that graphite combines, with one or more in aramid fiber, politef, the integument made with metal, graphite that described braiding strengthens packing.
As preferably, the ellipsoidal cross section of described pure graphite annulus.
The invention has the beneficial effects as follows: the surface of pure graphite annulus matches with first annular groove and the second annular groove, and then become face from linear contact lay between pure graphite annulus and annular groove and contact, can effectively reduce leakage radially, and possess certain resilience, pure graphite annulus is positioned at middle part, when by upper and lower extruding, internal diameter diminishes, and external diameter becomes big, can hold axle and cavity wall tightly and then prevent axial leakage, better tightness, the most also has novel structure, convenient disassembly, the advantage such as quick for installation.
Accompanying drawing explanation
Fig. 1 is the sectional view of the present invention.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
Shown in Figure 1, a kind of combined stuffing ring of the present invention.A kind of combined stuffing ring, including the first ring body 1 and second ring body 2 symmetrically arranged with described first ring body 1, it is provided with first annular groove 10 on described first ring body 1, it is provided with on described second ring body 2 and the second annular groove 20 of described first annular groove 10 symmetry, being provided with pure graphite annulus 3 between described first annular groove 10 and described second annular groove 20, the surface of described pure graphite annulus 3 matches with described first annular groove 10 and described second annular groove 20；The outboard bonds of described first ring body 1 has braiding to strengthen packing 4, and the outside of described second ring body 2 is also bonded with braiding and strengthens packing 4.
In technique scheme, described braiding strengthens the integument that packing 4 combines with one or more in aramid fiber, politef for graphite with metal, graphite and makes.
In technique scheme, the ellipsoidal cross section of described pure graphite annulus 3.
The surface of the pure graphite annulus 3 in combined stuffing ring of the present invention matches with first annular groove 10 and the second annular groove 20, and then become face from linear contact lay between pure graphite annulus 3 and annular groove and contact, can effectively reduce leakage radially, and possess certain resilience, pure graphite annulus 3 is positioned at middle part, when by upper and lower extruding, internal diameter diminishes, external diameter becomes big, axle can be held tightly and cavity wall prevents axial leakage, better tightness, the most also has novel structure, convenient disassembly, the advantage such as quick for installation.
The listed above specific embodiment being only the present invention, it is clear that the invention is not restricted to above embodiment.All deformation that those of ordinary skill in the art can directly derive from present disclosure or associate, all should belong to protection scope of the present invention.
Claims (2)
1. a combined stuffing ring, it is characterized in that: include the first ring body (1) and with described symmetrically arranged second ring body of first ring body (1) (2), it is provided with first annular groove (10) on described first ring body (1), second annular groove (20) symmetrical with described first annular groove (10) it is provided with on described second ring body (2), it is provided with pure graphite annulus (3) between described first annular groove (10) and described second annular groove (20), the surface of described pure graphite annulus (3) matches with described first annular groove (10) and described second annular groove (20)；The outboard bonds of described first ring body (1) has braiding to strengthen packing (4), and the outside of described second ring body (2) is also bonded with braiding and strengthens packing (4), the ellipsoidal cross section of described pure graphite annulus (3).
A kind of combined stuffing ring the most according to claim 1, it is characterised in that: it is that graphite combines, with one or more in politef, the integument made with aramid fiber, graphite with metal, graphite that described braiding strengthens packing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179556.1A CN103953730B (en) | 2014-04-30 | 2014-04-30 | A kind of combined stuffing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179556.1A CN103953730B (en) | 2014-04-30 | 2014-04-30 | A kind of combined stuffing ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103953730A CN103953730A (en) | 2014-07-30 |
| CN103953730B true CN103953730B (en) | 2016-09-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410179556.1A Active CN103953730B (en) | 2014-04-30 | 2014-04-30 | A kind of combined stuffing ring |
Country Status (1)
| Country | Link |
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| CN (1) | CN103953730B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422861B (en) * | 2015-12-29 | 2017-12-29 | 浙江工业大学 | A kind of packing seal structure of built-in enhancing ring |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4006881A (en) * | 1974-12-09 | 1977-02-08 | Gachot S.A. | Fluid-tight packing for closure devices and devices fitted with said packing |
| US4185840A (en) * | 1978-05-10 | 1980-01-29 | Seals Eastern Inc. | Multilayer seal |
| CN1056561A (en) * | 1991-03-12 | 1991-11-27 | 山东滨州柔性石墨密封件厂 | Expanded graphite and teflon braided composite packing material |
| CN1187238A (en) * | 1995-06-07 | 1998-07-08 | 埃克森生产研究公司 | Primary and secondary seal assemblies with contacting convex surfaces |
| US7191843B2 (en) * | 2004-06-24 | 2007-03-20 | Petroquip Energy Services, Inc. | Valve apparatus with seal assembly |
| CN2883807Y (en) * | 2006-04-06 | 2007-03-28 | 马志刚 | Shaped disk base sealing gasket |
| WO2010098930A2 (en) * | 2009-02-27 | 2010-09-02 | Halliburton Energy Services, Inc. | Sealing array for high temperature applications |
| CN203335860U (en) * | 2013-06-27 | 2013-12-11 | 慈溪市白沙精工密封材料厂 | Novel graphite packing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7751677B2 (en) * | 2005-06-30 | 2010-07-06 | Weatherford/Lamb, Inc. | Optical fiber feedthrough using axial seals for bi-directional sealing |
-
2014
- 2014-04-30 CN CN201410179556.1A patent/CN103953730B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4006881A (en) * | 1974-12-09 | 1977-02-08 | Gachot S.A. | Fluid-tight packing for closure devices and devices fitted with said packing |
| US4185840A (en) * | 1978-05-10 | 1980-01-29 | Seals Eastern Inc. | Multilayer seal |
| CN1056561A (en) * | 1991-03-12 | 1991-11-27 | 山东滨州柔性石墨密封件厂 | Expanded graphite and teflon braided composite packing material |
| CN1187238A (en) * | 1995-06-07 | 1998-07-08 | 埃克森生产研究公司 | Primary and secondary seal assemblies with contacting convex surfaces |
| US7191843B2 (en) * | 2004-06-24 | 2007-03-20 | Petroquip Energy Services, Inc. | Valve apparatus with seal assembly |
| CN2883807Y (en) * | 2006-04-06 | 2007-03-28 | 马志刚 | Shaped disk base sealing gasket |
| WO2010098930A2 (en) * | 2009-02-27 | 2010-09-02 | Halliburton Energy Services, Inc. | Sealing array for high temperature applications |
| CN203335860U (en) * | 2013-06-27 | 2013-12-11 | 慈溪市白沙精工密封材料厂 | Novel graphite packing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103953730A (en) | 2014-07-30 |
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