CN104832646B - Sleeve sealing assembly - Google Patents
Sleeve sealing assembly Download PDFInfo
- Publication number
- CN104832646B CN104832646B CN201510148141.2A CN201510148141A CN104832646B CN 104832646 B CN104832646 B CN 104832646B CN 201510148141 A CN201510148141 A CN 201510148141A CN 104832646 B CN104832646 B CN 104832646B
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- sleeve
- boss
- connecting stud
- nut
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- 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
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
Abstract
The invention discloses a sleeve sealing assembly, which comprises a pipe (1), a connecting stud (2), a nut (3), a sleeve (4) and a sealing ring (5) are coaxially arranged, wherein an annular boss (11) is arranged on the external surface of the pipe, a bulge loop (12) is arranged on one side of the annular boss (11), one side of the sealing ring (5) abuts against the bulge loop (12), the other side of the sealing ring (5) abuts against the connecting stud (2), and the nut (3) sleeves outside the connecting stud (2) and the sleeve (4). The sleeve sealing assembly is simple in structure, and convenient for mounting and dismounting, and can be repeatedly usable. The sleeve sealing assembly is suitable for wider scope from room temperatures to low temperatures, and is excellent in sealing performance.
Description
Technical field
The present invention relates to a kind of sealing device, more particularly, to a kind of bobbin seal component.
Background technology
The bobbin seal component in refrigeration ＆ cryogenic engineering field, due to having under material property change and normal temperature under low temperature environment
Larger difference, needs special design, and it is quick to meet connection disassembling, simple structure, the characteristics of good seal performance.Conventional rubber
Sealing ring, in low temperature situation the profound hypothermia occasions such as liquid nitrogen temperature (80K, less than -193 DEG C) are particularly, often brittle and lose
Sealing.In addition, current existing Sealing Technology and structure, are mostly to form face sealing by the tight fit in face and face, and
For mechanical seal, linear sealing has less area and larger pressure, and sealing will get well compared to face sealing.Cause
This, needs a kind of dismountable black box that can adapt to profound hypothermia, good seal performance, meet some particular applications and
The needs of Practical Project.
In prior art, existing low temperature resistant sealing ring, Chinese patent CN102767572A discloses a kind of full for biserial
The low temperature resistant sealing ring of dress cylinder roller bearing, the structure includes silicone rubber O-ring and support steel skeleton by way of injection
An entirety is buckled into, possesses lower temperature resistance and dual-seal.Although silicon rubber relative to General Purpose Rubber its lower temperature resistance
Jing very well, but is not still suitable for liquid nitrogen temperature, and when temperature is less than -120 DEG C embrittlement is just started.Chinese patent
CN203500516U discloses a kind of low temperature seal valve, the structure mainly using sylphon seal and soft and hard seal combine it is double
Conical surface seal pair, can not only be applied to liquid nitrogen, liquid oxygen occasion, and good seal performance.But the structure lays particular emphasis on solution valve
Interior leakage problem, it is impossible to solve being connected and sealing problem for pipeline.
Chinese patent CN102252140A discloses a kind of seal nipple of the nonmetallic pipeline of profound hypothermia, the seal nipple bag
Nut, metal o-ring, connecting stud and nonmetallic connecting line are included, mainly producing radial load using pipeline external structure makes metal
Sealing ring deformation is in close contact with outer surface, so as to reach the effect of sealing.The structure solves metal with nonmetallic pipeline
Connectivity problem, good sealing effect is applicable to room temperature to profound hypothermia in a big way.But outside metal o-ring and connecting line
Contact between surface is face contact, and its sealing force is made the characteristics of due to its flat seal than larger, the operating physical force of needs also compared with
Greatly, and at room temperature by larger radial load extruding after close contact, into profound hypothermia environment due to nonmetallic materials
Thermal coefficient of expansion be more than metal material, metal o-ring and connecting line outer surface contact be too closely possible to damage portion
Part.
The content of the invention
The invention provides one kind can be used in low temperature environment, good seal performance, simple structure, installation and removal are convenient
Bobbin seal component.
For this purpose, the present invention is employed the following technical solutions：A kind of bobbin seal component, including coaxially arranged pipeline, nut,
Connecting stud, sealing ring and sleeve, pipeline outer surface has the boss of an annular, and there are a bulge loop, sealing ring one in boss side
Side props up bulge loop, and opposite side props up connecting stud；Nut sleeve is outside connecting stud and sleeve.
The present invention plays the sealing function of the bobbin seal component by sealing ring and the cooperation of pipeline and sleeve, by rotation
Enter connecting stud, make to produce relative motion between connecting stud and nut, crush seal circle, the boss side surfaces of pipeline outer surface it is convex
Ring presses closer sealing ring, reaches good sealing effectiveness；By screwing out connecting stud, you can dismantle the bobbin seal component, and energy
Enough remove sealing ring to be changed.
Preferably, sleeve is engaged part with boss to stretch out to form neck boss, along convex with the neck in nut
The side of platform coordinates, it is to avoid by the brought into close surface contact of nut inner surface and sleeve outer surface come attaching nut and sleeve,
Reduce operating physical force so that simple to operate, while reducing the abrasion that mantle friction brings, improve component service life.
Preferably, sealing ring is the frustum of a cone, top surface props up bulge loop on sealing ring, and sealing ring bottom surface props up connection spiral shell
Post so that the primary and secondary face of sealing ring contacts with the port linear of sleeve pipe, because linear contact has less area and larger
Pressure, sealing will get well compared to surface contact, more improve sealing property.
Preferably, the range of taper of sealing ring is 30 degree of -45 degree, sealing ring can be so avoided to cause because taper is excessive
Deformation is too small, while avoiding sealing ring from causing effectively sealing not enough because taper is too small, optimizes sealing ring tightness energy.
Preferably, the rectangular cross-section of boss, it is ensured that sealing ring upper surface only contacts with bulge loop, will not directly contact
The side of boss, reduces contact area, improves sealing property.
Preferably, bulge loop is located on the center side line of boss so that sealing ring and bulge loop contact are uniform, improve
Sealing property.
Preferably, bulge loop section is triangle, triangle advantageously reduces the contact surface of sealing ring upper surface and bulge loop
Product so that the close contact of bulge loop and sealing ring upper surface improves sealing property close to linear contact.
Preferably, pipeline, connecting stud, nut, sleeve and sealing ring material are metal, wherein sealing ring material is nothing
Oxygen copper.According to metal, at low temperature performance will not typically occur the characteristic of drastic change, and the bobbin seal component has in low temperature environment
Reliability.And sealing ring material is oxygen-free copper, resistance to low temperature is good, while quality is softer, sleeve and piping material are stainless steel,
Quality is harder, and sealing ring forms soft or hard compound seal, good seal performance with sleeve and pipeline.Because the thermal coefficient of expansion of copper is in gold
Relatively large in category, the shrinkage ratio pipeline of low temperature environment lower seal is violent so that sealing ring is even closer with the contact of pipeline,
Guarantee the bobbin seal component sealing property at low ambient temperatures.
Therefore, using the bobbin seal component of the present invention, good seal performance, it is adaptable to from room temperature to low temperature (liquid nitrogen temperature)
In a big way, sealing not temperature influence, simple structure；In addition the present invention is detachable low temperature seal part, is installed
And convenient disassembly, anaerobic copper sealing ring is replaceable, reusable.
Description of the drawings
Fig. 1 is the structural representation of the bobbin seal component of the present invention.
Fig. 2 is the partial enlarged drawing of the part A of bobbin seal component shown in Fig. 1.
Wherein：
1st, pipeline；2nd, connecting stud；3rd, nut；4th, sleeve；5th, sealing ring；11st, boss；12nd, bulge loop；41st, neck boss.
Specific embodiment
By shown in Fig. 1, Fig. 2, bobbin seal component of the present invention include coaxially arranged pipeline 1, connecting stud 2, nut 3,
Sleeve 4 and sealing ring 5.The material of pipeline 1, connecting stud 2, nut 3, sleeve 4 and sealing ring 5 is metal, wherein sealing ring 5
Material is oxygen-free copper, and sleeve 4 and pipeline 1 are stainless steel.
The outer surface of pipeline 1 has a coaxial annular boss 11, the cutting in the plane that the axle center of pipeline 1 is located of boss 11
Face is rectangle；Boss 11 is provided with a bulge loop 12 coaxial with pipeline 1 towards the side of connecting stud 2, and bulge loop 12 is in the axle of pipeline 1
The section in plane that the heart is located is triangle, forms denation, and the projection closely connects with top surface on sealing ring during assembling
Touch.Bulge loop 12 is located on the center side line of boss 11, i.e., in pipeline 1 radially, bulge loop 12 is located at the side medium position of boss 11.
Sealing ring 5 is the frustum of a cone of annular, is set in the outer wall of pipeline 1, and taper is 30 degree；Two end faces of sealing ring 5 point
It is not upper top surface and bottom surface, outer wall is primary and secondary face；The upper top surface of sealing ring 5 is enlarged diameter section, and bottom surface is smaller diameter end；It is close
Top surface props up bulge loop 12 in seal 5, and the bottom surface of sealing ring 5 props up connecting stud 2.The material of sealing ring 5 be oxygen-free copper, quality compared with
It is soft, form soft or hard compound seal with sleeve 4 and pipeline 1.Through the extruding of connecting stud 2 during assembling, the upper top surface of sealing ring 5 with
The bulge loop 12 of the boss 11 of pipeline 1 is in close contact, and forms linear sealing, and the primary and secondary face of sealing ring 5 and sleeve 4 are towards connecting stud
2 side forms linear sealing along being in close contact.
In the present embodiment, sleeve 4 can be the end of the pipeline that needs are connected with pipeline 1, or a certain part
Connection end etc..Sleeve 4 is engaged part with the primary and secondary face of sealing ring 5 and stretches out to form neck boss 41, edge and neck in nut 3
The side of portion's boss 41 coordinates.Connecting stud 2 and sleeve 4 are set in the outer wall of pipeline 1, and the outer wall of connecting stud 2 is provided with external screw thread.
Connecting stud 2 and sleeve 4 are separately positioned on the both sides of sealing ring 5.Nut 3 is set in two opposite ends of connecting stud 2 and sleeve 4
Portion, coordinates positioning with the external screw thread of the outer wall of connecting stud 2 and the neck boss 41 of sleeve 4 respectively.
During installation, pipeline 1, connecting stud 2, nut 3, sleeve 4 and sealing ring 5 is coaxially arranged in order, precession connects
Connect stud 2 so that relative motion, crush seal circle 5 are produced between connecting stud 2 and nut 3 so that the upper top surface of sealing ring 5 is tight
Linear sealing is produced tight against firmly bulge loop 12, the primary and secondary face of sealing ring 5 produces linear sealing tightly against the port of sleeve 4；Work as connection
When stud 2 is screwed, this bobbin seal component installation can meet seal request.During dismounting, connecting stud 2 is screwed out, you can tear open
Lower pipeline 1, connecting stud 2, nut 3, sleeve 4 and sealing ring 5.When the deformation of sealing ring 5 is larger loses sealing effectiveness, the company of back-out
Stud 2 is connect, sealing ring 5 is removed and is changed, then precession connecting stud 2 re-starts installation steps, you can reuse this sleeve pipe
Black box.
Claims (4)
1. a kind of bobbin seal component, including coaxially arranged pipeline (1), connecting stud (2), nut (3), sleeve (4) and close
Seal (5), it is characterised in that：Pipeline (1) outer surface has a boss (11) of an annular, boss (11) side have one it is convex
Ring (12), on described boss (11) center side line, sealing ring (5) is the frustum of a cone to described bulge loop (12), sealing ring
(5) range of taper is 30 degree of -45 degree, and top surface props up described bulge loop (12) on sealing ring (5), and sealing ring (5) bottom surface is supported
The connecting stud (2) that residence is stated, the primary and secondary face of sealing ring (5) contacts with the port linear of sleeve pipe (4)；Described nut (3) set
In connecting stud (2) and sleeve (4) outward；Described pipeline (1), connecting stud (2), nut (3), sleeve (4) and sealing ring (5)
Material is metal, and wherein sealing ring (5) material is oxygen-free copper.
2. bobbin seal component according to claim 1, it is characterised in that：Described sleeve (4) and described boss
(11) it is engaged part to stretch out to form neck boss (41), coordinates along the side with the neck boss (41) in nut (3).
3. bobbin seal component according to claim 1, it is characterised in that：The rectangular cross-section of described boss (11).
4. bobbin seal component according to claim 1, it is characterised in that：Described bulge loop (12) section is triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510148141.2A CN104832646B (en) | 2015-03-31 | 2015-03-31 | Sleeve sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510148141.2A CN104832646B (en) | 2015-03-31 | 2015-03-31 | Sleeve sealing assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104832646A CN104832646A (en) | 2015-08-12 |
| CN104832646B true CN104832646B (en) | 2017-05-10 |
Family
ID=53810734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510148141.2A Expired - Fee Related CN104832646B (en) | 2015-03-31 | 2015-03-31 | Sleeve sealing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104832646B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3404902A (en) * | 1965-11-09 | 1968-10-08 | Gray Tool Co | Deflectable lip sealing connection having spoiler feature |
| CN2268169Y (en) * | 1996-12-06 | 1997-11-19 | 冶金工业部自动化研究院 | Rotating coupling unit |
| CN2365492Y (en) * | 1998-03-06 | 2000-02-23 | 王进泉 | Convenient loose joint |
| CN201209719Y (en) * | 2008-02-15 | 2009-03-18 | 杨长国 | Plastic-aluminum pipe connection |
| CN201739659U (en) * | 2010-07-22 | 2011-02-09 | 夏成法 | Connecting pipe fitting for thin-wall stainless steel pipe |
| CN102252140B (en) * | 2011-07-21 | 2012-10-10 | 浙江大学 | Seal joint of deep low-temperature nonmetal pipeline |
| CN102767572B (en) * | 2012-08-01 | 2014-12-17 | 优必胜（苏州）轴承有限公司 | Low-temperature-resisting sealing ring |
| CN103899862A (en) * | 2014-04-22 | 2014-07-02 | 江苏新方圆电气设备制造有限公司 | Wear-resisting type pipeline rotation compensator |
| CN204127557U (en) * | 2014-11-04 | 2015-01-28 | 陈墅庚 | Novel precise formula high pressure resistant rotary compensator |
-
2015
- 2015-03-31 CN CN201510148141.2A patent/CN104832646B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104832646A (en) | 2015-08-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20180331 |
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| CF01 | Termination of patent right due to non-payment of annual fee |