CN102434668A - Self-tightening conical ring sealing structure - Google Patents
Self-tightening conical ring sealing structure Download PDFInfo
- Publication number
- CN102434668A CN102434668A CN2011104135983A CN201110413598A CN102434668A CN 102434668 A CN102434668 A CN 102434668A CN 2011104135983 A CN2011104135983 A CN 2011104135983A CN 201110413598 A CN201110413598 A CN 201110413598A CN 102434668 A CN102434668 A CN 102434668A
- Authority
- CN
- China
- Prior art keywords
- sealing
- tapered
- seal
- ring seal
- sheet
- 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
Images
Abstract
The invention discloses a self-tightening conical ring sealing structure, which comprises an upper sealing body, a lower sealing body and a conical ring sealing gasket, wherein the sealing surface of the upper sealing body is provided with a two-step stage; the sealing surface of the lower sealing body is provided with a one-step stage; the inner ring surface and the outer ring surface of the conical ring sealing gasket are tightly contacted with the sealing cylindrical surface of the upper sealing body and the sealing cylindrical surface of the lower sealing body respectively, so that narrow surface sealing is realized; and an upper cutting edge and a lower cutting edge of the sealed ring are respectively clamped on the stages of the upper sealing body and the lower sealing body, so that cutting edge line sealing is realized. The invention has the advantages that: the self-tightening conical ring sealing structure has two advantages of self-tightening sealing and cutting edge line sealing; the working pressure is large, and the sealing effect is good; the conical ring is thin, so that the conical ring is elastically deformed in a width direction to make up for the extending deformation of a bolt and insure the sealing; due to a smaller pretightening force, larger sealing specific pressure can be acquired; after the conical ring is pretightened, the sealing cutting edges are tightly contacted with the stages of the upper sealing body and the lower sealing body to form the cutting edge line sealing; and the sealing effect is enhanced.
Description
Technical field
The invention belongs to technical field of sealing technology, relate to the sealing configuration under high pressure, the high temperature condition, specially refer to the structure shape of seal element, be implemented in the inclusion seal under high pressure, high temperature, the high fatigue condition.
Background technique
On design of Sealing Structure, different according to purposes, taked diversified sealing configuration.Can be divided into pressure type sealing configuration and self-tightening type sealing configuration from seal action Z-TEK point, forced seal mainly relies on bigger bolt force to realize sealing, and working pressure is high more, needs bolt force also big more; Self-tightening sealing mainly relies on the self structure characteristics, and after working pressure raise, contact pressure strengthened between seal element and the sealing configuration, and the big more sealing load of working pressure is also big more, and sealing effect is good more.Can divide face contact seal and line contact sealing from the sealing contact surface pattern, under the identical pretightening force, the line contact sealing specific pressure is greater than face contact seal specific pressure, and the linear sealing effect is superior to face seal.The conventional seals mat structure can be divided into plain cushion sealing, the sealing of " O " type circle, the sealing of " C " type ring, biconical ring seal and octangonal ring sealing or the like.These traditional gasket structures have only the plain cushion sealing to belong to pressure type and face contact seal, and other belongs to or the approximate self-tightening molded lines contact seal structure that belongs to mostly.
See that from sealing principle self-tightening sealing is superior to forced seal, linear sealing is better than face seal.Big for pressure surge, temperature is high, the sealing configuration of the harsh occasion of seal request, in design, often at first consider to adopt self-tightening type sealing configuration.To traditional self-tightening sealing pad,, make difficulty because shim is bigger; Sealing surface belongs to surface seal structure mostly, to seal space when limited, and special high temperature, high pressure, high tired occasion; The pad rebound elasticity is not very good; Sealing effect is not good enough, under high temperature, high pressure, and can't be through halogen or helium mass spectrometer leak detector leak detection requirement.
Summary of the invention
The technical problem that the present invention will solve is: adopt a kind of more reasonable, safe and reliable, sealing configuration that sealing configuration is compact; The high leak tightness of realization equipment under high temperature, high pressure, high fatigue; Assurance equipment sealing surface does not thoroughly leak, and satisfies the leak detection requirement of halogen or helium mass spectrometer leak detector.
Technological scheme of the present invention is: a kind of self-tightening type tapered collar sealing configuration; Comprise seal, lower seal body and tapered ring seal sheet; The tapered ring seal sheet places the sealing surface place between seal and the lower seal body; The tapered collar inner ring surface and the tapered collar outer ring surface that it is characterized in that said tapered ring seal sheet are parallel to each other, and be vertical with horizontal plane; The said sealing surface of going up seal is provided with seal step on the second order; The sealing surface of lower seal body is provided with single order lower seal body step; Tapered ring seal sheet tapered collar inner ring surface closely contacts with last seal sealing cylinder; Tapered collar outer ring surface and lower seal body sealing cylinder closely contacts, and realizes the leptoprosopy sealing, and the sealing edge of a knife is stuck on seal first rank on the seal step on the tapered collar of tapered ring seal sheet; The tapered collar lower seal edge of a knife of tapered ring seal sheet is stuck on the lower seal body step, realizes edge of a knife linear sealing.
A kind of self-tightening type tapered collar sealing configuration according to the invention is characterized in that said tapered ring seal sheet gradient is 30 degree, tapered ring seal sheet thickness 1.5～2.5mm, and width is 6～8mm.
The production method of the tapered ring seal sheet of a kind of self-tightening type tapered collar sealing configuration according to the invention; It is characterized in that said production method may further comprise the steps: 1. utilize laser or electrical spark cutting technique on stainless steel flat plate, to cut out the dull and stereotyped annulus blank of tapered ring seal sheet, leave allowance for finish;
2. utilize the tapered collar molding fetal on press machine, to form tapered ring seal sheet blank, cone angle satisfies the following process requirement;
3. utilize the vacuum solid solution heat treatment method, eliminate the residual stress in the tapered ring seal sheet after the moulding, utilize conical surface mold then, eliminate the possibility that residual stress changes the tapered ring seal plate shape tapered ring seal sheet die mould again.
4. utilize mold to adopt machine-tooled method to process tapered ring seal sheet tapered collar inner ring surface and tapered collar outer ring surface respectively, reach the finished product requirement.
When the present invention realizes sealing; Tapered ring seal sheet tapered collar inner ring surface closely contacts with the sealing cylinder of upper-lower seal body respectively with outer ring surface; The sealing of realization leptoprosopy; The sealing edge of a knife (going up sharp edge) of going up of tapered ring seal sheet is stuck on the step of upper-lower seal structure with the lower seal edge of a knife (following sharp edge) simultaneously, realizes edge of a knife linear sealing.When working pressure increased, the contact pressure between the tapered collar inner ring surface of tapered ring seal sheet, outer ring surface and the upper-lower seal edge of a knife and seal sealing cylinder and the step increased, and seal pressure increases, and realizes the sealing of self-tightening type.When compressing, the gradient of tapered ring seal sheet can slightly change, and remedies the gap between the upper-lower seal body.The tapered ring seal sheet is thinner, has favorable elasticity, receives the upper-lower seal body and compresses when realizing sealing, can produce slight elastic bending deflection in the ring width direction, is enough to remedy the elongation strain that the bolt stand under load takes place.
Effect of the present invention and benefit are: sealing configuration 1. of the present invention and tapered ring seal sheet have self tightening and edge of a knife molded lines sealing two-fold advantage; Working pressure is big more; Between the sealing cylinder of the tapered collar inner ring surface of tapered ring seal sheet and outer ring surface and upper-lower seal body and contact between the tapered ring seal sheet upper-lower seal edge of a knife and the upper-lower seal body step tight more, good sealing effect; 2. ring thickness is thinner, width be thickness 3-5 doubly, under pretightening force, tapered ring seal sheet width direction resiliently deformable can remedy the elongation strain of bolt behind the stand under load, guarantees sealing.3. owing to tapered ring seal sheet thinner thickness, inner ring surface is also narrower with the sealing surface that outer ring surface contacts with the upper-lower seal body, and parallel to each other, and less pretightening force can obtain bigger seal pressure.4. the sharp zero defect of lower limb on the tapered collar of tapered ring seal sheet forms the upper-lower seal edge of a knife, and the sealing edge of a knife closely contacts with the step of upper-lower seal body behind the pretension, forms the sealing of edge of a knife molded lines, strengthens sealing effect
Description of drawings
Drawings attached two width of cloth of the present invention, wherein
Fig. 1 is a tapered ring seal chip architecture schematic representation of the present invention,
Fig. 2 is a self-tightening type tapered collar sealed structural representation.
Among the figure: 1 tapered ring seal sheet; 2 tapered collar thickness; 3 tapered collar width; 4 tapered collar inner ring surfaces; 5 tapered collar outer ring surfaces; 6 tapered collar gradients; Seal the edge of a knife on 7 tapered collars; The 8 tapered collar lower seal edges of a knife; Seal on 9; 10 lower seal bodies; Seal step on 11; 12 lower seal body steps; Seal sealing cylinder on 13; 14 lower seal bodies sealing cylinder; 15 pretension bolts.
Embodiment
Be described in detail embodiment of the present invention below in conjunction with technological scheme and accompanying drawing.
Self-tightening type tapered collar sealing configuration comprises seal 9, lower seal body 10 and tapered ring seal sheet 1; Tapered ring seal sheet 1 places the sealing surface place between seal 9 and the lower seal body 10; Tapered ring seal sheet tapered collar inner ring surface 4 is parallel to each other with tapered collar outer ring surface 5, and is vertical with horizontal plane; The sealing surface of last seal 9 is provided with seal step 11 on the second order; The sealing surface of lower seal body is provided with single order lower seal body step 12, and tapered ring seal sheet tapered collar inner ring surface 4 closely contacts with last seal sealing cylinder 13, and tapered collar outer ring surface 5 closely contacts with lower seal body sealing cylinder 14; The sealing of realization leptoprosopy; The sealing edge of a knife 7 is stuck on first rank on the seal step 11 on the tapered collar, and the tapered collar lower seal edge of a knife 8 is stuck on the lower seal body step 12, realizes edge of a knife linear sealing.
Tapered ring seal sheet gradient is 30 degree, tapered ring seal sheet thickness 1.5～2.5mm, and width is 6～8mm.
The manufacturing and the installation method of self-tightening type tapered collar sealing configuration are following:
1, tapered ring seal piece making method: 1. utilize laser or electrical spark cutting technique on stainless steel flat plate, to cut out dull and stereotyped annulus blank, leave allowance for finish; 2. utilize the tapered collar molding fetal on press machine, to form tapered ring seal sheet blank, cone angle satisfies the following process requirement; 3. utilize the vacuum solid solution heat treatment method, eliminate the residual stress in the tapered ring seal sheet after the moulding, utilize conical surface mold then, eliminate the possibility that residual stress changes the tapered ring seal plate shape tapered ring seal sheet die mould again.4. utilize accurate mold to adopt machine-tooled method to process tapered collar inner ring surface and outer ring surface respectively, reach the design code size.
2, sealing configuration processing: on the upper-lower seal body, process respectively with outer ring surface diameter and tolerance according to the inner ring surface diameter of tapered ring seal sheet and to seal cylinder and sealed step, meet design requirement.
3, seal ring is installed: tapered ring seal sheet inner ring surface is enclosed within seal gently seals on the cylinder, on seal the edge of a knife and be stuck on its step; To go up seal and the lower seal body makes up gently, the outer ring surface of tapered ring seal sheet is closely contacted with lower seal body sealing cylinder and step with the lower seal edge of a knife, tighten peripheral pretension bolt 15, install by prescribed torque.
4, sealability check: on the sealability Inspection equipment, inside charges into the regulation working pressure, and under room temperature and operating temperature (high temperature) respectively utilizes helium mass spectrometer leak detector or halogen leak detector to carry out leak test.
Claims (3)
1. self-tightening type tapered collar sealing configuration; Comprise seal (9), lower seal body (10) and tapered ring seal sheet (1); Tapered ring seal sheet (1) places the sealing surface place between seal (9) and the lower seal body (10); The tapered collar inner ring surface (4) that it is characterized in that said tapered ring seal sheet (1) is parallel to each other with tapered collar outer ring surface (5), and is vertical with horizontal plane; The said sealing surface of going up seal (9) is provided with seal step (11) on the second order; The sealing surface of lower seal body (10) is provided with single order lower seal body step (12); Tapered ring seal sheet tapered collar inner ring surface (4) closely contacts with last seal sealing cylinder (13); Tapered collar outer ring surface (5) and lower seal body sealing cylinder (14) closely contact, and the realization leptoprosopy seals, and seals the edge of a knife (7) on the tapered collar of tapered ring seal sheet and is stuck on seal first rank on the seal step (11); The tapered collar lower seal edge of a knife (8) of tapered ring seal sheet is stuck on the lower seal body step (12), realizes edge of a knife linear sealing.
2. according to the said a kind of self-tightening type tapered collar sealing configuration of claim 1, it is characterized in that said tapered ring seal sheet (1) gradient is 30 degree, tapered ring seal sheet (1) thickness 1.5～2.5mm, width is 6～8mm.
3. the production method of the tapered ring seal sheet of the said a kind of self-tightening type tapered collar sealing configuration of claim 1 is characterized in that said production method may further comprise the steps:
1. utilize laser or electrical spark cutting technique on stainless steel flat plate, to cut out the dull and stereotyped annulus blank of tapered ring seal sheet (1), leave allowance for finish;
2. utilize the tapered collar molding fetal on press machine, to form tapered ring seal sheet (1) blank, cone angle satisfies the following process requirement;
3. utilize the vacuum solid solution heat treatment method; Residual stress after the elimination moulding in the tapered ring seal sheet (1); Utilize conical surface mold to tapered ring seal sheet (1) die mould again then, eliminate the possibility that residual stress changes tapered ring seal sheet (1) shape.
4. utilize mold to adopt machine-tooled method to process tapered ring seal sheet (1) tapered collar inner ring surface (4) and tapered collar outer ring surface (5) respectively, reach the finished product requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104135983A CN102434668A (en) | 2011-12-12 | 2011-12-12 | Self-tightening conical ring sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104135983A CN102434668A (en) | 2011-12-12 | 2011-12-12 | Self-tightening conical ring sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102434668A true CN102434668A (en) | 2012-05-02 |
Family
ID=45982909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104135983A Pending CN102434668A (en) | 2011-12-12 | 2011-12-12 | Self-tightening conical ring sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434668A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941445A (en) * | 2012-11-08 | 2013-02-27 | 合肥通用机械研究院 | Method for processing fracture type halving sealing ring |
| CN104121365A (en) * | 2014-07-04 | 2014-10-29 | 中科华核电技术研究院有限公司 | Sealing device and sealing method |
| CN104633113A (en) * | 2014-12-31 | 2015-05-20 | 江苏安德信超导加速器科技有限公司 | Novel aluminium magnesium alloy seal ring |
| CN112392954A (en) * | 2019-08-16 | 2021-02-23 | 中国科学院大连化学物理研究所 | Double-triangular polytetrafluoroethylene sealing O ring |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57173595A (en) * | 1981-04-20 | 1982-10-25 | Hitachi Ltd | Internal seal construction of boiler feed-water pump, etc. |
| US4522328A (en) * | 1982-02-06 | 1985-06-11 | Firma Carl Freudenberg | Shaft seal |
| CN86101364A (en) * | 1985-03-08 | 1986-11-12 | 阿金泰克股份公司 | The pipe joint of annex or machine |
| CN2255802Y (en) * | 1996-05-21 | 1997-06-11 | 辛梅松 | Plate spring type sealing ring for pressure cooker |
| CN201757175U (en) * | 2010-08-23 | 2011-03-09 | 中广核工程有限公司 | Tapered piece ring sealing device |
| CN202392105U (en) * | 2011-12-12 | 2012-08-22 | 大连理工安全装备有限公司 | Self-tightening type tapered ring sealing structure |
-
2011
- 2011-12-12 CN CN2011104135983A patent/CN102434668A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57173595A (en) * | 1981-04-20 | 1982-10-25 | Hitachi Ltd | Internal seal construction of boiler feed-water pump, etc. |
| US4522328A (en) * | 1982-02-06 | 1985-06-11 | Firma Carl Freudenberg | Shaft seal |
| CN86101364A (en) * | 1985-03-08 | 1986-11-12 | 阿金泰克股份公司 | The pipe joint of annex or machine |
| CN2255802Y (en) * | 1996-05-21 | 1997-06-11 | 辛梅松 | Plate spring type sealing ring for pressure cooker |
| CN201757175U (en) * | 2010-08-23 | 2011-03-09 | 中广核工程有限公司 | Tapered piece ring sealing device |
| CN202392105U (en) * | 2011-12-12 | 2012-08-22 | 大连理工安全装备有限公司 | Self-tightening type tapered ring sealing structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941445A (en) * | 2012-11-08 | 2013-02-27 | 合肥通用机械研究院 | Method for processing fracture type halving sealing ring |
| CN104759841A (en) * | 2012-11-08 | 2015-07-08 | 合肥通用机械研究院 | Fracture halving seal ring fabrication method |
| CN104121365A (en) * | 2014-07-04 | 2014-10-29 | 中科华核电技术研究院有限公司 | Sealing device and sealing method |
| CN104633113A (en) * | 2014-12-31 | 2015-05-20 | 江苏安德信超导加速器科技有限公司 | Novel aluminium magnesium alloy seal ring |
| CN112392954A (en) * | 2019-08-16 | 2021-02-23 | 中国科学院大连化学物理研究所 | Double-triangular polytetrafluoroethylene sealing O ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102434668A (en) | Self-tightening conical ring sealing structure | |
| CN201752737U (en) | Full circular main bearing flanging die | |
| CN202392105U (en) | Self-tightening type tapered ring sealing structure | |
| WO2020135120A1 (en) | Ceramic tile die, expanded ceramic tile die support, and ceramic tile made out of die | |
| CN205136589U (en) | Cylinder block leak test sealing device | |
| CN203098851U (en) | Blind plate | |
| CN103317026B (en) | Pressurized composite die | |
| CN102777598A (en) | High-pressure sealing method and sealing ring | |
| CN105570461A (en) | Airfoil follow-up sealing structure | |
| CN102259129A (en) | Flanging process for full-circle main bearing and special die thereof | |
| CN202752418U (en) | Small section and large diameter thin-wall metal tight-seal ring pre-forming technology equipment | |
| CN201757175U (en) | Tapered piece ring sealing device | |
| CN213055626U (en) | Metal fabric composite integrated rubber film component | |
| CN208992991U (en) | A kind of back-pressure injection mold sealing structure | |
| CN202229891U (en) | Pipe pressure test seal ring | |
| CN103551442A (en) | Hydraulic counter pressure drawing device for sealing ring and preparation method | |
| CN103240323A (en) | Hydraulic plug forming method | |
| CN204358089U (en) | A kind of self tightening different angle flank of tooth bipyramid ring pad | |
| CN203146826U (en) | Novel sealing device for speed-reducing top piston rod part | |
| CN207205155U (en) | A kind of cold-heading design structure of ultrathin cold-heading part | |
| CN204083347U (en) | The nonmetal sealing configuration of ball valve elastic compensating | |
| CN203405373U (en) | Rapid test device for fracturing pump valve box | |
| CN203926763U (en) | Steel pipe hydrostatic testing seal ring | |
| CN203091534U (en) | Bottle cap bulging die with stereo patterns | |
| CN204365844U (en) | A kind of mould ensureing blanking flange punching concentricity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |