CN205559774U - Sealing device and sealing system - Google Patents
Sealing device and sealing system Download PDFInfo
- Publication number
- CN205559774U CN205559774U CN201620117614.2U CN201620117614U CN205559774U CN 205559774 U CN205559774 U CN 205559774U CN 201620117614 U CN201620117614 U CN 201620117614U CN 205559774 U CN205559774 U CN 205559774U
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- China
- Prior art keywords
- component
- sealing device
- shaft component
- lid component
- discoid body
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- Sealing Devices (AREA)
- Gasket Seals (AREA)
Abstract
The utility model relates to a sealing device and sealing system. This sealing device is used for sealedly to the cylindrical inner chamber of sealing member to including major structure spare, lid component and ring component. The axle of major structure spare passes the axial hole the that cover component, and major structure spare can be close to and keep away from in the axial with the lid component via threaded connection each other, the periphery of the second portion that the disc of being close to major structure spare of periphery that ring component cover the first portion of component in being close to of the disc body of major structure spare and/or lid component was personally experienced sth. Part of the body, and the disc is personally experienced sth. Part of the body the outer peripheral face of first portion, lid component the at least one axials slopes for major structure spare in the outer peripheral face of second portion and the inner peripheral surface of ring component to when major structure spare is close to with the lid member each other, make ring member radius vector expand to the outside. The utility model discloses an in the above -mentioned structure, need not process the terminal surface by the sealing member to sealing device's installation is convenient with the dismantlement.
Description
Technical field
The utility model relates to mechanical seal field, particularly to sealing device and the sealing system including this sealing device.
Background technology
It is known that mechanical seal is particularly significant for mechanical system, hydraulic system, pneumatic system and lubricating system etc..Any leakage part may cause the system failure.
It is currently, there are two kinds of main mechanical seal modes.A kind of be as shown in Figure 1 use sealing ring radial seal structure, another kind be as shown in Figure 2 use sealing ring axial seal structure.
In the structure of fig. 1, lid 2 includes the flange part being projected into the main part in pipe 1 (by seal) and radially highlighting from this main part, the flange part of lid 2 is installed to the end face of pipe 1 by pin 3, and O 4 is arranged between main part and the inner peripheral surface of pipe 1 of lid 2.
In the structure of Fig. 2, with the structure of Fig. 1 similarly, lid 2 includes the flange parts being projected into the main part in pipe 1 and radially highlighting from this main part, and the flange part of lid 2 is installed to the end face of pipe 1 by pin 3.With the structure of Fig. 1 differently, O 4 is arranged between flange part and the end face of pipe 1 of lid 2.
In two kinds of sealing structures given above, in order to carry out correct, install accurately, need processing by the end face of seal or by the interface between seal and lid.Being relatively easy to by seal of processing appropriate size, but processing large scale or complicated shape by seal, or processing image tube part this little wall thickness be not only difficulty by seal, and be with high costs.
Utility model content
In two kinds of mechanical seal structures discussed above, in order to carry out correct assembling accurately, not only needed to be processed accurately by the end face of seal (pipe 1), and cover and be also required to be accurately processed, sometimes the processing of end face is difficult, even if in the case of can being processed end face, this also results in the increase of manufacturing cost.
In order to solve the problems referred to above, the utility model proposes following scheme.
A kind of sealing device, for sealing by the cylindrical cavity of seal, wherein,
Described sealing device includes shaft component, lid component and ring element,
Described shaft component includes discoid body and the axle axially extending from the axial side of described discoid body, the axle of described shaft component through the axial hole of described lid component, described shaft component and described lid component can via threaded the most close to each other and away from,
Described ring element is enclosed within the periphery of the Part II of the discoid body of the periphery of the Part I of the close described lid component of the discoid body of described shaft component and/or the close described shaft component of described lid component,
Axially inclined relative to described shaft component of at least one in the outer peripheral face of the described Part I of described discoid body, the outer peripheral face of described Part II of described lid component and the inner peripheral surface of described ring element, thus when described shaft component and described lid component are close to each other, the outer peripheral face of the outer peripheral face of the described Part I of described discoid body and/or the described Part II of described lid component makes described ring element expand to radial outside.
Preferably, it is formed with one or more cannelure in the periphery of the part being axially away from described lid component of described shaft component,
Described sealing device also includes the one or more O V-shaped rings being installed on the one or more cannelure.
Preferably, the outer peripheral face of the axle of described shaft component is formed with external screw thread,
The axial hole of described lid component is formed with the internal thread that the external screw thread with described axle coordinates.
Described sealing device also includes nut, and described nut engages with the external screw thread of described axle in the side of the discoid body being axially away from described shaft component of described lid component.
Preferably, one end away from described discoid body of the axle of described shaft component is formed with polygonized structure portion.
Preferably, described lid component is circular, and the external diameter of described lid component is equal with the external diameter of the discoid body of described shaft component.
Preferably, axially inclined relative to described shaft component of the outer peripheral face of the described Part I of described discoid body so that the closer to described lid component, the external diameter of the described Part I of described discoid body is the least,
Axially inclined relative to described shaft component of the outer peripheral face of the described Part II of described lid component so that the closer to the discoid body of described shaft component, the external diameter of the described Part II of described lid component is the least.
Preferably, the axial two ends of the axial cross section of described ring element are the most wedge shaped.
Preferably, described ring element is C-shaped ring, or
Described ring element is made up of the multiple ring segment circumferentially separated.
A kind of sealing system, described sealing system include being formed cylindrical cavity by seal with according to sealing device of the present utility model, described sealing device is arranged in described cylindrical cavity.
In said structure of the present utility model, it is not necessary to be processed by the end face of seal, it is possible to realize correct installation.In the case of had big size or little wall thickness (such as, tubulose is by seal) by seal, the meaning of the processing omitting end face will be the most great.
Sealing device of the present utility model is installed easily, only need to insert by the cylindrical cavity of seal sealing device, make shaft component and lid component (such as, by fastening nut) close to each other just can be forced into by ring element to abut by the inner peripheral surface of seal, complete to install.Similarly, the dismounting of sealing device of the present utility model is the easiest.
Accompanying drawing explanation
Fig. 1 is the schematic cross sectional view illustrating the radial seal structure according to prior art；
Fig. 2 is the schematic cross sectional view illustrating the axial seal structure according to prior art；
Fig. 3 is the stereogram illustrating the sealing system according to an embodiment of the present utility model；
Fig. 4 is the schematic cross sectional views of this sealing system；
Fig. 5 is the schematic perspective view of the shaft component of the sealing device in this sealing system；
Fig. 6 is the schematic perspective view of the ring element of this sealing device；
Fig. 7 is the schematic perspective view of the lid component of this sealing device；
Fig. 8 is the schematic sectional view of the first modification of the contact site of the shaft component according to sealing device of the present utility model, lid component and ring element；
Fig. 9 is the schematic sectional view of the second modification of the contact site of the shaft component according to sealing device of the present utility model, lid component and ring element；
Figure 10 is the schematic sectional view of the 3rd modification of the contact site of the shaft component according to sealing device of the present utility model, lid component and ring element.
Description of reference numerals
1 pipe；2 lids；3 pins；4 O；
10 pipes；20 shaft components；30 lid components；50 nuts；
40 ring elements；60 O V-shaped rings；
21 discoid bodies；22 axles；23 cannelures；24 polygonized structure portions；25 frustum of a cone portions (Part I)；26 external screw threads；
41 conical surfaces；
31 axial holes；32 frustum of a cone portions (Part II)；Protuberance 33；
200 shaft components；300 lid components；400 ring elements；
401 ring elements；401A straight flange；401B hypotenuse；
201 shaft components；The 201A conical surface.
Detailed description of the invention
Illustrative embodiments of the present utility model is described with reference to the accompanying drawings.Should be appreciated that these specific descriptions are only used for teaching how those skilled in the art implement the utility model, rather than exhaustive all feasible modes of the present utility model, without in limiting scope of the present utility model.
The utility model provides sealing device, includes this sealing device and by the sealing system of seal.With reference to Fig. 3 to 7, sealing device of the present utility model is for sealing by the cylindrical cavity of seal.In the following description, using pipe 10 as by the example of seal.It will be appreciated, however, that be not limited to pipe by seal, its profile is also not necessarily limited to cylindrical shape, as long as it has cylindrical cavity to be sealed.
This sealing device includes shaft component 20, lid component 30, ring element 40 and nut 50.Shaft component 20 includes discoid body 21 and the axle 22 axially extending from the axial side of discoid body 21.External screw thread 26 it is formed with on axle 22.Lid component 30 is the most circular, and the external diameter of lid component 30 is suitable with the external diameter of the discoid body 21 of shaft component 20, is advantageously equal, and the internal diameter of the cylindrical cavity equal to or slightly less than pipe 10.
Lid component 30 is formed with axial hole 31.The axle 22 of shaft component 20 is through the axial hole 31 of lid component 30.On the external screw thread 26 of the axle 22 that nut 50 is screwed to shaft component 20, such that it is able to make shaft component 20 and lid component 30 close to each other, in the case of unclamping nut 50, it is allowed to shaft component 20 and lid component 30 are away from each other.
Ring element 40 is C-shaped ring, the periphery of the Part II (frustum of a cone portion 32) of the discoid body 21 of the close shaft component 20 of its periphery of Part I (frustum of a cone portion 25) of close lid component 30 of discoid body 21 being enclosed within shaft component 20 and lid component 30.
In arbitrary axial cross section of sealing device, the outer peripheral face in frustum of a cone portion 25 of shaft component 20, axially inclined relative to shaft component 20 of the outer peripheral face in frustum of a cone portion 32 of lid component 30.More specifically, the closer to lid component, the external diameter in frustum of a cone portion 25 is the least；The closer to the discoid body of shaft component 20, the external diameter in frustum of a cone portion 32 is the least.
The inner peripheral surface of ring element 40 is axially inclined relative to shaft component 20.Especially, the axial two ends of the axial cross section of ring element 40 are all in the wedge shape with the conical surface 41.In the concrete example of diagram, the axial cross section of ring element 40 is isosceles triangle.But, the shape of the axial cross section of ring element is not limited to this, and such as, the axial cross section of ring element can be formed as isosceles trapezoid.
When shaft component 20 and lid component 30 are close to each other, ring element 40 is pushed away by the outer peripheral face in the outer peripheral face in the frustum of a cone portion 25 of shaft component 20 and the frustum of a cone portion 32 of lid component 30 to radial outside, even if ring element 40 is radially expanded.In this example, ring element 40 is mainly used in being fixed in pipe 10 whole sealing device.
Could be formed with one or more cannelure 23 than frustum of a cone portion 25 away from the periphery of the part of lid component 30 in the axial direction at shaft component 20, one or more O V-shaped rings 60 are installed on this one or more cannelures 23.In this example, mainly realizing sealing by sealing ring 60, sealing ring 60 can be formed by the suitable material of rubber etc..
As it is shown in figure 5, the end of the axle 22 at shaft component 20, i.e. one end away from discoid body 21 are formed with polygonized structure portion 24.This is easy to when being screwed on axle 22 by nut 50, tightens or unclamps nut 50, thus be effectively prevented axle 22 (shaft component 20) and rotate together with nut 50 while clamping axle 22.
As shown in Figure 7, the end face (its right end face in Fig. 7) of the discoid body 21 away from shaft component 20 of lid component 30 is formed with circular protuberance 33 prominent axially outward, setting by protuberance 33, the end face that can make nut 50 and pipe 10 is separated in the axial direction, is so easy to operate nut 50.Certainly, this protuberance 33 is only preferred, and lid component 30 can not have this protuberance.
Briefly describe the using method of sealing device of the present utility model below.
First shaft component 20, sealing ring 60, ring element 40, lid component 30 and nut 50 are assembled into the state shown in Fig. 4, but, shaft component 20 and lid component 30 can be the most close, the most do not make ring element 40 prominent to radial outside too much, as such, it is possible to easily whole sealing device is inserted in pipe 10.
It is then possible in the case of the polygonized structure portion 24 of clamping shaft component 20, fastening nut 50, so that ring element 40 gradually moves to radial outside, compress the inner surface of pipe 10.Thus whole sealing device is fixed in pipe 10.
When sealing device pulled down by needs, first unclamp nut 50, from pipe 10, then take out whole sealing device or take out all parts of sealing device successively.
Should be appreciated that the utility model is not limited to above-mentioned specific embodiment, above-mentioned embodiment can be variously modified under teaching of the present utility model or deform by those skilled in the art, and these change or deformation is still in the range of the utility model.
(1) in the above-described embodiment, shaft component, lid component and ring element are formed with the conical surface (inclined plane) being fitted to each other, but, the utility model is not limited to this.
Fig. 8-10 illustrates the schematic sectional view at the position being fitted to each other of the shaft component according to modification of the present utility model, lid component and ring element.
As shown in Figure 8, in the first modification, only ring element 400 is formed with the conical surface, i.e. the axial cross section of ring element 400 is substantially isosceles triangle, and the discoid body of shaft component 200 and lid component 300 are generally a cylindrical shape or cylindrical shape, the most do not have the conical surface or inclined plane.
As it is shown in figure 9, in the second modification, the axial side of ring element 401 is formed with the conical surface, i.e. the axial cross section of ring element 401 is approximate right angle triangle.The discoid body of shaft component 200 and lid component 300 are generally a cylindrical shape or cylindrical shape, the most do not have the conical surface or inclined plane.In this modification, make a hypotenuse 401B of ring element 401 move on the discoid body of shaft component 200 by a straight flange 401A of lid component 300 throw-out collar component 401, thus ring element 401 is mobile to radial outside (upside in Fig. 9).
As shown in Figure 10, the 3rd modification is to replace the shaft component in above-mentioned second modification to obtain with the shaft component in above-mentioned embodiment.In the structure shown here, shaft component 201 is formed with the conical surface (inclined plane) 201A that the conical surface (hypotenuse 401B) with ring element 401 coordinates.
Certainly, these modification are exemplary, and those skilled in the art it will also be appreciated that other deforms.
(2) in the above-described embodiment, make shaft component by nut and lid component is the most closer to each other or away from, but, the utility model is not limited to this, can form external screw thread at the outer peripheral face of the axle of shaft component, the axial hole at lid component forms the internal thread coordinated with the external screw thread of axle.Now, the above-mentioned protuberance 33 of lid component is preferably formed to be prone to the shape of clamping, such as, quadrangle or hexagon.
(3) in the above-described embodiment, discoid body and the axle of shaft component form, but, together with discoid body can shape individually with axle and is then assembled to, now, the material of the two can be identical or different.
(4) in the above-described embodiment, ring element is C-shaped ring, but, the utility model is not limited to this.Such as, ring element can be made up of the multiple ring segment circumferentially separated.In one example, projection or striped etc. can be formed at the outer peripheral face of ring element, form firm frictional engagement with the inner peripheral surface being prone to pipe.
(5) each component of sealing device of the present utility model can be formed by various materials.Such as, shaft component, lid component and nut can be formed by various metals, and ring element can be formed by metal, rubber or plastics.
Claims (10)
1. a sealing device, for sealing by the cylindrical cavity of seal, it is characterised in that
Described sealing device includes shaft component, lid component and ring element,
Described shaft component includes discoid body and the axle axially extending from the axial side of described discoid body, institute
Stating the axle of the shaft component axial hole through described lid component, described shaft component and described lid component can be via
Threaded the most close to each other and away from,
Described ring element is enclosed within the Part I of the close described lid component of the discoid body of described shaft component
The periphery of the Part II of the discoid body of the close described shaft component of periphery and/or described lid component,
The outer peripheral face of the described Part I of described discoid body, described lid component described Part II outside
At least one in the inner peripheral surface of side face and described ring element is axially inclined relative to described shaft component, from
And when described shaft component and described lid component are close to each other, outside the described Part I of described discoid body
The outer peripheral face of the described Part II of side face and/or described lid component makes described ring element expand to radial outside
?.
Sealing device the most according to claim 1, it is characterised in that
Be formed in the periphery of the part being axially away from described lid component of described shaft component one or
Multiple cannelures,
Described sealing device also includes that the one or more O shapes being installed on the one or more cannelure are close
Seal ring.
Sealing device the most according to claim 1, it is characterised in that
The outer peripheral face of the axle of described shaft component is formed with external screw thread,
The axial hole of described lid component is formed with the internal thread that the external screw thread with described axle coordinates.
Sealing device the most according to claim 1, it is characterised in that
The outer peripheral face of the axle of described shaft component is formed with external screw thread,
Described sealing device also includes nut, and described nut is described in being axially away from of described lid component
The side of the discoid body of shaft component engages with the external screw thread of described axle.
5. according to the sealing device described in claim 3 or 4, it is characterised in that
One end away from described discoid body of the axle of described shaft component is formed with polygonized structure portion.
Sealing device the most according to any one of claim 1 to 3, it is characterised in that
Described lid component is circular, the external diameter of described lid component and the external diameter of the discoid body of described shaft component
Equal.
Sealing device the most according to any one of claim 1 to 3, it is characterised in that
Axially inclined relative to described shaft component of the outer peripheral face of the described Part I of described discoid body, makes
Must be the closer to described lid component, the external diameter of the described Part I of described discoid body is the least,
Axially inclined relative to described shaft component of the outer peripheral face of the described Part II of described lid component, makes
Must be the closer to the discoid body of described shaft component, the external diameter of the described Part II of described lid component is the least.
Sealing device the most according to claim 7, it is characterised in that
The axial two ends of the axial cross section of described ring element are the most wedge shaped.
Sealing device the most according to any one of claim 1 to 3, it is characterised in that
Described ring element is C-shaped ring, or
Described ring element is made up of the multiple ring segment circumferentially separated.
10. a sealing system, described sealing system include being formed cylindrical cavity by seal,
It is characterized in that,
Described sealing system also includes the sealing device according to any one of claim 1 to 9,
Described sealing device is arranged in described cylindrical cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620117614.2U CN205559774U (en) | 2016-02-05 | 2016-02-05 | Sealing device and sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620117614.2U CN205559774U (en) | 2016-02-05 | 2016-02-05 | Sealing device and sealing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205559774U true CN205559774U (en) | 2016-09-07 |
Family
ID=56820851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620117614.2U Expired - Fee Related CN205559774U (en) | 2016-02-05 | 2016-02-05 | Sealing device and sealing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205559774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337855A (en) * | 2016-09-23 | 2017-01-18 | 江西洪都航空工业集团有限责任公司 | Actuating cylinder structure achieving quick disassembling and adjustment |
-
2016
- 2016-02-05 CN CN201620117614.2U patent/CN205559774U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337855A (en) * | 2016-09-23 | 2017-01-18 | 江西洪都航空工业集团有限责任公司 | Actuating cylinder structure achieving quick disassembling and adjustment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20170205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |