CN105840833A - Short mechanical seal - Google Patents
Short mechanical seal Download PDFInfo
- Publication number
- CN105840833A CN105840833A CN201610314202.2A CN201610314202A CN105840833A CN 105840833 A CN105840833 A CN 105840833A CN 201610314202 A CN201610314202 A CN 201610314202A CN 105840833 A CN105840833 A CN 105840833A
- Authority
- CN
- China
- Prior art keywords
- spring
- ring
- rotating
- rotating seat
- seat
- 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
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
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
The invention discloses a short mechanical seal which comprises a stationary ring, a moving ring, a moving ring seat, springs and a spring seat, wherein the moving ring is connected with the moving ring seat in a sleeving manner and is fixedly connected with the moving ring seat; a sealing surface of the moving ring is in butt joint with a sealing surface of the stationary ring; a moving ring spring butt joint surface which extends outwards is arranged at the end, connected with the moving ring in a sleeving manner, of the moving ring seat; the spring seat is provided with a spring butt joint surface facing the moving ring seat; the two ends of the springs are in butt joint between the moving ring spring butt joint surface and the spring butt joint surface of the spring seat; and the part, connected with the moving ring in a sleeving manner, of the moving ring seat is connected in the springs in a sleeving manner. According to the short mechanical seal, the springs can fully utilize the axial length of the part, connected with the moving ring seat in a sleeving manner, of the moving ring, the axial length of the entire mechanical seal is maximumly shortened when the springs are guaranteed to apply thrust to the moving ring, and the application range of the mechanical seal is enlarged.
Description
Technical field
The present invention relates to mechanical seal field, particularly to the mechanical seal of a kind of short.
Background technology
Mechanical seal generally includes stationary ring, rotating ring, rotating seat, spring and spring base；Rotating ring is fixing with rotating seat to be connected also
Being socketed in rotating shaft with pivot, the end face of rotating ring is ring seal face, and ring seal face is mutual with the sealing surface of stationary ring
Abut, form being tightly connected of rotation；The other end of rotating ring abuts one end of spring, and the other end of spring is socketed and is connected to bullet
In spring abutment, spring push rotating ring keeps the pressure abutted with stationary ring.
The shortcoming of prior art is: rotating ring abuts the most one by one with rotating seat, spring so that whole mechanical seal exists
The axial distance of rotating ring side part is the longest, much the size of ring portion is being had in the device of strict demand and cannot used.
The information being disclosed in this background section is merely intended to increase the understanding of the general background to the present invention, and should not
When being considered to recognize or imply in any form this information structure prior art well known to persons skilled in the art.
Summary of the invention
It is an object of the invention to provide the machinery of a kind of short that spring and is set outside rotating ring along the axial length
Seal, thus shorten the whole mechanical seal axial length in rotating ring side, expand the range of mechanical seal.
For achieving the above object, the invention provides the mechanical seal of a kind of short, be socketed in the rotating shaft of machinery, bag
Include: stationary ring, rotating ring, rotating seat, spring and spring base；Moving ring sleeve is connected to rotating seat and is connected with rotating seat, rotating seat and rotating shaft
Connecting, rotating ring arranges ring seal face towards stationary ring, and stationary ring fastening is arranged on stationary ring and is provided with the stationary ring sealing surface of correspondence, and rotating ring is close
Front cover abuts against with stationary ring sealing surface；Wherein, described rotating seat is additionally provided with extension outside rotating ring in one end of socket rotating ring
Rotating seat spring bearing surface；Spring base is fastenedly connected with described rotating shaft, and spring base is provided with the spring bearing surface towards rotating seat；Bullet
The two ends of spring are connected between rotating seat spring bearing surface and the spring bearing surface of spring base, the position of rotating seat socket rotating ring
It is socketed in spring so that spring can make full use of moving ring sleeve and be connected to the axial length of rotating seat, is guaranteeing that spring is to rotating ring
While applying thrust, reduce the axial length of whole mechanical seal to greatest extent, add the applicable model of mechanical seal
Enclose.
In technique scheme, it is further preferred that the outward flange of rotating seat spring bearing surface is additionally provided with towards spring
Rotating seat is protruding, constitutes rotating seat spring fixing groove so that the end of spring is retrained by rotating seat, it is ensured that spring is reliably fixed
And pushing tow, and beneficially spring installation location.
In technique scheme, it is further preferred that the outward flange of the spring bearing surface set by spring base is additionally provided with face
Protruding to the spring base of spring, constitute spring fixing groove so that this end of spring is retrained by spring base, it is ensured that spring is by reliably
Fixing and pushing tow, and the installation of beneficially spring.
In technique scheme, spring base projection is additionally provided with that be stepped, outside expansion segment, and the section of expanding outwardly extends
To rotating seat high spot, and rotating seat projection is socketed, constitutes the cavity of putting spring so that spring is reliably retrained and protects
Protect, keep the equilibrium that rotating seat is exerted a force by spring, it is possible to avoid spring to cause fatigue to side excessive distortion.
Compared with prior art, the present invention is by arranging outward extending rotating seat bullet in one end of rotating seat socket rotating ring
Spring bearing surface so that the part that spring is socketed rotating ring with rotating seat in the axial direction overlaps, the whole mechanical seal of corresponding reduction exists
Length on Zhou Xiang, improves the scope of application of mechanical seal；By spring base is formed cavity with rotating seat socket, not only may be used
By restricted spring, keep the equilibrium that rotating seat is exerted a force by spring, it is possible to avoid spring to cause fatigue to side excessive distortion, really
Protect the working life of spring.
Accompanying drawing explanation
Fig. 1 is the structural representation of the mechanically-sealing apparatus of a kind of short according to the present invention.
Main Reference Numerals illustrates:
1-rotating shaft；2-stationary ring；3-stationary ring sealing ring；4-rotating seat；41-rotating seat spring bearing surface；42-rotating seat is protruding；43-
Rotating seat spring fixing groove；5-rotating ring；6-spring base；61-spring bearing surface；62-spring base is protruding；63-spring fixing groove；
64-expansion segment；7-spring；8-seal ring of moving ring.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Scope of protecting is not limited by detailed description of the invention.
Explicitly indicating that unless otherwise other, otherwise in entire disclosure and claims, term " includes " or it becomes
Change and such as " comprising " or " including " etc. will be understood to comprise stated element or ingredient, and do not get rid of other yuan
Part or other ingredient.
As it is shown in figure 1, the mechanical seal of the short according to the specific embodiment of the invention, whole mechanical seal is socketed in machine
In the rotating shaft 1 of tool, including: stationary ring 2, rotating ring 5, rotating seat 4, spring 7 and spring base 6；Stationary ring 2 is fixed on the casing (figure of outside
Not shown in) in, stationary ring sealing ring 3 is set between stationary ring 2 and casing so that stationary ring 2 and casing keep being tightly connected；Rotating ring 5
Being socketed on rotating seat 4 and fixing with rotating seat 4 be connected, rotating seat 4 is fastenedly connected with rotating shaft 1, rotating ring 5 and rotating seat 4 and rotating shaft 1
Between be tightly connected by seal ring of moving ring 8；Rotating ring 5 arranges ring seal face towards stationary ring, and the stationary ring that stationary ring 2 is provided with correspondence is close
Front cover, ring seal face abuts against with stationary ring sealing surface, completes the rotating seat spring bearing surface 41 extended outside machinery rotating ring, logical
Often it is preferably the function radially extending sealing to rotating ring 5；Rotating seat 4 socket rotating ring one end be additionally provided with to；Spring base 6 with
Described rotating shaft 1 is fastenedly connected, and spring base 6 is provided with the spring bearing surface 61 towards rotating seat 4；The two ends of spring 7 are connected to move
Between ring seat spring bearing surface 41 and the spring bearing surface 61 of spring base, rotating seat 4 is socketed the position of rotating ring 5 and is socketed on spring 7
In so that spring 7 can make full use of moving ring sleeve and be connected to the axial length of rotating seat, is guaranteeing that spring 7 applies thrust to rotating ring
While, reduce the axial length of whole mechanical seal to greatest extent, add the scope of application of mechanical seal.
Further as it is shown in figure 1, the outward flange of rotating seat spring bearing surface 41 is additionally provided with the rotating seat projection towards spring
42, constitute rotating seat spring fixing groove 43 so that the end of spring 7 is retrained by rotating seat, it is ensured that spring is reliably fixed and pushed up
Push away, and beneficially spring installation location；The outward flange of the spring bearing surface 61 set by spring base 6 is additionally provided with the bullet towards spring
Spring abutment projection 62, constitutes spring fixing groove 63 so that this end of spring 7 is retrained by spring base 6, it is ensured that spring 7 is by reliably solid
Fixed and pushing tow, and the installation of beneficially spring.
Further as it is shown in figure 1, spring base 6 projection is additionally provided with that be stepped, outside expansion segment 64, outside expansion
Section 64 extends at rotating seat protruding 42, and by protruding for rotating seat 42 sockets, constitutes the cavity of putting spring 7 so that spring quilt
Reliable constraint and protection, keep the equilibrium that rotating seat is exerted a force by spring, it is possible to avoid spring to cause tired to side excessive distortion
Labor.
The present invention is by arranging outward extending rotating seat spring bearing surface in one end of rotating seat socket rotating ring so that bullet
The part that spring is socketed rotating ring with rotating seat in the axial direction overlaps, corresponding reduction whole mechanical seal length in the axial direction, carries
The high scope of application of mechanical seal；By spring base and rotating seat socket are formed cavity, not only reliable restricted spring, keeps
The equilibrium that rotating seat is exerted a force by spring, it is possible to avoid spring to cause fatigue to side excessive distortion, it is ensured that the work longevity of spring
Life.
The aforementioned description to the specific illustrative embodiment of the present invention illustrates that and the purpose of illustration.These describe
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can much change
And change.The purpose selected exemplary embodiment and describe is to explain that the certain principles of the present invention and reality thereof should
With so that those skilled in the art be capable of and utilize the present invention various different exemplary and
Various different selections and change.The scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (4)
1. a mechanical seal for short, is socketed in the rotating shaft of machinery, including: stationary ring, rotating ring, rotating seat, spring and spring
Seat；Moving ring sleeve is connected to rotating seat and is connected with rotating seat, and rotating seat is connected with rotating shaft, and rotating ring arranges ring seal towards stationary ring
Face, stationary ring is provided with the stationary ring sealing surface of correspondence, and ring seal face abuts against with stationary ring sealing surface；It is characterized in that, described rotating ring
Seat is additionally provided with, in one end of socket rotating ring, the rotating seat spring bearing surface extended outside rotating ring；Described spring base and described rotating shaft
Being fastenedly connected, spring base is provided with the spring bearing surface towards rotating seat；The two ends of spring are connected to rotating seat spring bearing surface
With between the spring bearing surface of spring base, the position of rotating seat socket rotating ring is socketed in spring.
The mechanical seal of short the most according to claim 1, it is characterised in that outside described rotating seat spring bearing surface
The rotating seat that edge is additionally provided with towards spring is protruding, constitutes rotating seat spring fixing groove.
The mechanical seal of short the most according to claim 1 and 2, it is characterised in that the described bullet set by spring base
The spring base that the outward flange of spring bearing surface is additionally provided with towards spring is protruding, constitutes spring fixing groove.
The mechanical seal of short the most according to claim 3, it is characterised in that described spring base projection is additionally provided with in rank
Trapezoidal, outside expansion segment, the section of expanding outwardly extends to rotating seat high spot, and rotating seat projection is socketed, and constitutes accommodating
The cavity of spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314202.2A CN105840833A (en) | 2016-05-13 | 2016-05-13 | Short mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314202.2A CN105840833A (en) | 2016-05-13 | 2016-05-13 | Short mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105840833A true CN105840833A (en) | 2016-08-10 |
Family
ID=56591533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610314202.2A Pending CN105840833A (en) | 2016-05-13 | 2016-05-13 | Short mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840833A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757548A (en) * | 2018-08-01 | 2018-11-06 | 宁波伏尔肯科技股份有限公司 | A kind of mechanical sealing device of silicon carbide for water pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1316747A2 (en) * | 2001-11-30 | 2003-06-04 | EAGLE INDUSTRY Co., Ltd. | Mechanical seal device |
| CN103244688A (en) * | 2012-02-07 | 2013-08-14 | 上海天示机械零部件制造有限公司 | Mechanical sealing device for wide-range axial length elastic compensation |
| JP2013242047A (en) * | 2006-07-25 | 2013-12-05 | Eagle Industry Co Ltd | Mechanical seal device |
| CN203430842U (en) * | 2013-08-27 | 2014-02-12 | 宁波安睦密封科技有限公司 | Mechanical seal device for pump |
| CN104912842A (en) * | 2015-05-08 | 2015-09-16 | 赵烨坚 | Mechanical seal |
| CN105041708A (en) * | 2015-07-07 | 2015-11-11 | 上海高更高实业有限公司 | Mechanical seal structure of drink pump |
| CN205047844U (en) * | 2015-10-23 | 2016-02-24 | 宁波方力密封件有限公司 | Mechanical seal |
| CN205663885U (en) * | 2016-05-13 | 2016-10-26 | 宁波精科机械密封件制造有限公司 | Mechanical seal of short type |
-
2016
- 2016-05-13 CN CN201610314202.2A patent/CN105840833A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1316747A2 (en) * | 2001-11-30 | 2003-06-04 | EAGLE INDUSTRY Co., Ltd. | Mechanical seal device |
| US20030102631A1 (en) * | 2001-11-30 | 2003-06-05 | Eagle Industry Co., Ltd. | Mechanical seal device |
| JP2013242047A (en) * | 2006-07-25 | 2013-12-05 | Eagle Industry Co Ltd | Mechanical seal device |
| CN103244688A (en) * | 2012-02-07 | 2013-08-14 | 上海天示机械零部件制造有限公司 | Mechanical sealing device for wide-range axial length elastic compensation |
| CN203430842U (en) * | 2013-08-27 | 2014-02-12 | 宁波安睦密封科技有限公司 | Mechanical seal device for pump |
| CN104912842A (en) * | 2015-05-08 | 2015-09-16 | 赵烨坚 | Mechanical seal |
| CN105041708A (en) * | 2015-07-07 | 2015-11-11 | 上海高更高实业有限公司 | Mechanical seal structure of drink pump |
| CN205047844U (en) * | 2015-10-23 | 2016-02-24 | 宁波方力密封件有限公司 | Mechanical seal |
| CN205663885U (en) * | 2016-05-13 | 2016-10-26 | 宁波精科机械密封件制造有限公司 | Mechanical seal of short type |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757548A (en) * | 2018-08-01 | 2018-11-06 | 宁波伏尔肯科技股份有限公司 | A kind of mechanical sealing device of silicon carbide for water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160810 |
|
| WD01 | Invention patent application deemed withdrawn after publication |