CN105889515A - Contact type dry operation seal - Google Patents
Contact type dry operation seal Download PDFInfo
- Publication number
- CN105889515A CN105889515A CN201610447446.8A CN201610447446A CN105889515A CN 105889515 A CN105889515 A CN 105889515A CN 201610447446 A CN201610447446 A CN 201610447446A CN 105889515 A CN105889515 A CN 105889515A
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing
- contact type
- type dry
- axle sleeve
- 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
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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
- F16J15/162—Special parts or details relating to lubrication or cooling of the sealing itself
-
- 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
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
The invention relates to the technical field of sealing, in particular to a contact type dry operation seal. The contact type dry operation seal comprises a sealing structure arranged among a flange, an end cover and a shell, a rotating shaft is provided with a shaft sleeve, the sealing structure comprises a static ring seat, a spring seat, a sealing pair and an elastic assembly, wherein the static ring seat is fixedly mounted on the shell, the spring seat is fixedly mounted on the shaft sleeve in a sleeving mode, and the sealing pair and the elastic assembly are symmetrically arranged on the two sides of the spring seat, the sealing pair comprises dynamic rings and static rings which are matched with one another through sealing end faces, the dynamic rings are arranged on the spring seat in a sleeving mode, the elastic assembly acts on the end faces of the dynamic rings so that the sealing end faces of the dynamic rings and the sealing end faces of the static rings can be tightly attached to one another, the static rings on the two sides are fixedly mounted on the static ring seat and the flange respectively, and a bearing is arranged between the static ring seat and the shaft sleeve. The contact type dry operation seal is applicable to working conditions that no lubricating condition exists, materials are not allowed to be contaminated by sealing liquid, equipment precision is poor, and the equipment rotating speed is low, the service life is long, the sealing effect is good, and sealing gas consumption is extremely low.
Description
Technical field
The present invention relates to technical field of sealing technology, in sealing operation process, need not lubrication particularly to one,
Be applicable to source of the gas, the inadequate operating mode in water source or be not allow within liquid access arrangement contact type dry operating close
Envelope.
Background technology
Along with industries such as the development of modern science and technology, chemical industry, pharmacy, food, material multiformity grows with each passing day.
Contact type dry operating is with its scope of application widely, and the highest to equipment requirements, control system is various, even may be used
Need not control system, it is not necessary to lubricant medium can run, it is highly suitable for lubricant medium requirement tight
Lattice, and there is no the operating mode of proper lubrication medium.Under identical operating mode, quantity of gas leakage only has dry gas seals
Part or 1/10th, is highly suitable for vacuum and has certain requirements equipment.
Summary of the invention
It is an object of the invention to provide one and be applicable to dry conditions, material do not allow sealing fluid pollute,
The operating mode that equipment precision is poor, equipment rotating speed is relatively low, service life length, the preferable contact type dry of sealing effectiveness
Operating seals.
For solving above-mentioned technical problem, present invention employs techniques below scheme:
A kind of contact type dry operating seals, including the sealing structure being arranged between ring flange, end cap and housing,
Being provided with axle sleeve in described rotating shaft, described sealing structure includes the stationary seat being fixedly mounted on housing, fixes
The spring base being sleeved on axle sleeve and the sealing pair and the elastic parts that are symmetricly set on spring base both sides, described close
Envelope pair includes rotating ring and the stationary ring matched by seal face, and described rotating ring is all set on spring base, bullet
Property assembly acts on and makes rotating ring and the seal face of stationary ring fit tightly on rotating ring end face, and described both sides stationary ring divides
It is not fixedly mounted on stationary seat and ring flange, between described stationary seat and axle sleeve, is provided with bearing.
In technique scheme, further, described elastic parts include the spring that is arranged on spring base and
Being arranged on the throw-out collar of both ends of the spring, described throw-out collar is respectively acting on rotating ring end face under the action of the spring.
In technique scheme, further, between described stationary seat and axle sleeve, between end cap and axle sleeve all
It is provided with sealing member.
In technique scheme, further, it is provided with floating seal ring between described rotating ring and spring base.
In technique scheme, further, described axle sleeve is respectively arranged with back-up ring at bearing two ends, institute
State back-up ring to be fixedly mounted on axle sleeve by bearing.
In technique scheme, further, described spring base is provided with guide plate, described guide plate edge
Axis direction is arranged, and matches with the rotating ring outer face of spring base both sides.
In technique scheme, further, between described housing and ring flange, between stationary seat and housing
All being connected by steady pin, end cap is arranged on stationary seat, solid by connecting bolt between end cap and ring flange
Fixed connection.
In technique scheme, further, between described housing and ring flange, between stationary seat and housing,
End-face seal ring it is provided with between end cap and stationary seat.
In technique scheme, further, described axle sleeve is fixed and clamped in rotating shaft by locking device,
Described locking device includes the lock sleeve being arranged on axle sleeve and the hold-down ring being symmetricly set on lock sleeve, institute
Stating lock sleeve is symmetrically arranged wedge structure, and hold-down ring is respectively fitted on the tapered ramp of lock sleeve both sides,
It is connected between hold-down ring and lock sleeve tapered ramp, described lock sleeve is provided with multiple axial elasticity
Groove, is bolted between described hold-down ring.
The present invention uses symmetrically arranged two pairs of sealing pair structures, directly contacts during operating between seal face,
Friction factor is little, wearability good in sealing pair employing, the material of friction good film-forming property, is formed at seal face and rubs
Wipe the lubricating film that the factor is less, reduce the coefficient of friction between seal face further, reduce frictional heat, carry
While the dry running life that high sealing is secondary, it is not necessary to sealing fluid, it is not necessary to coolant, it is particularly well-suited to gas
Source, the environment of insufficient water sources and be not allow for liquid enter operating mode；Seal simple in construction, compact, seal
Effective, sealing leak amount is only the part or 1/tens of dry gas seals；By at static element and
Bearing is set between revolving part so that it is be applicable to that installation accuracy is poor, operation process shaft easily occurs partially
The equipment of pendulum.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Fig. 2 is ring flange of the present invention, housing and stationary seat attachment structure schematic diagram.
Fig. 3 is stereochemical structure profile of the present invention.
In figure: 1, ring flange, 2, housing, 3, stationary seat, 4, end cap, 5, rotating shaft, 6, axle sleeve, 7,
Spring base, 8, rotating ring, 9, stationary ring, 10, spring, 11, throw-out collar, 12, bearing, 13, guide plate,
14, back-up ring, 15, steady pin, 16, connecting bolt, 17, lock sleeve, 18, hold-down ring, 19, elastic
Groove, 20, bolt, 21, sealing member, 22, floating seal ring, 23, end-face seal ring.
Detailed description of the invention
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1 to 3, seal, including being arranged on ring flange 1, end cap 4 and shell for a kind of contact type dry operating
Sealing structure between body 2, described rotating shaft 5 is provided with axle sleeve 6, and described sealing structure includes fixed installation
Stationary seat 3, the spring base 7 being fixedly set on axle sleeve 6 on housing 2 and be symmetricly set on spring base 7
The sealing pair of both sides and elastic parts, described sealing pair includes the rotating ring 8 that matched by seal face and quiet
Ring 9, described rotating ring 8 is all set on spring base 7, and elastic parts acts on and makes rotating ring 8 on rotating ring 8 end face
Fitting tightly with the seal face of stationary ring 9, described both sides stationary ring 9 is respectively and fixedly installed to stationary seat 3 and method
On blue dish 1, between described stationary seat 3 and axle sleeve 6, it is provided with bearing 12.In the present embodiment rotating ring 8 with
Floating seal ring 22 it is provided with, when making rotating ring move on spring base, the most all the time between spring base 7
Keep good sealing property.
Elastic parts in the present embodiment includes the spring 10 being arranged on spring base 7 and is arranged on spring 10
The throw-out collar 11 at two ends, described throw-out collar 11 is respectively acting on rotating ring 8 end face under the effect of spring 10.?
Between stationary seat 3 and axle sleeve 6, it is provided with sealing member 21 between end cap 4 and axle sleeve 6, to bearing two ends
It is effectively sealed.
In the present embodiment, described axle sleeve 6 is respectively arranged with back-up ring 14, described back-up ring at bearing 12 two ends
Bearing 12 is fixedly mounted on axle sleeve 6 by 14.
Such as Fig. 3, it is preferable that being fixedly installed guide plate 13 on spring base 7, guide plate 13 is along rotating shaft
Axis direction is arranged, and guide plate 13 matches with rotating ring 8 outer face of spring base 7 both sides；Here guide plate
Play and the rotating ring moved along spring base is carried out effect that is spacing and that guide, improve further between sealing pair
Sealing property.
In the present embodiment, between described housing 2 and ring flange 1, all pass through between stationary seat 3 and housing 2
Steady pin 15 connects, and end cap 4 is arranged on stationary seat 3, by being connected spiral shell between end cap 4 with ring flange 1
Bolt 16 is fixing to be connected.Between housing 2 and ring flange 1, between stationary seat 3 and housing 2, end cap 4 with
End-face seal ring 23 it is provided with between stationary seat 3.
Such as Fig. 3, axle sleeve 6 described in the present embodiment is fixed and clamped in rotating shaft 5 by locking device, described lock
Tight device includes the lock sleeve 17 being arranged on axle sleeve 6 and the hold-down ring 18 being symmetricly set on lock sleeve 17,
Described lock sleeve 17 is symmetrically arranged wedge structure, and the tapered ramp on lock sleeve 17 rolls towards two respectively
Tiltedly, hold-down ring 18 is respectively fitted on the tapered ramp of lock sleeve 17 both sides, and hold-down ring 18 inner face sets accordingly
It is set to tapered ramp, is connected between hold-down ring 18 and lock sleeve 17 tapered ramp, lock sleeve 17 sets
It is equipped with multiple axial elastic groove 19, transition arc is set in one end of elastic groove 19, increases locking further
The elasticity of set 17, is connected by bolt 20 between two hold-down rings 18.Tighting a bolt, two hold-down rings occur
Relative motion, under the effect of tapered ramp, lock sleeve is held tightly by hold-down ring, under the effect of hold-down ring,
Lock sleeve tightens up and is compressed by axle sleeve and be fixed in rotating shaft.
The specification and drawings of the present invention is considered as illustrative and not restrictive, on the basis of the present invention,
Those skilled in the art are according to disclosed technology contents, it is not necessary to performing creative labour just can be to wherein one
A little technical characteristics are made some and are replaced and deformation, the most within the scope of the present invention.
Claims (9)
1. a contact type dry operating seals, including the sealing knot being arranged between ring flange, end cap and housing
Structure, described rotating shaft is provided with axle sleeve, it is characterised in that: described sealing structure includes being fixedly mounted on housing
On stationary seat, the spring base being fixedly set on axle sleeve and be symmetricly set on the sealing pair of spring base both sides with
Elastic parts, described sealing pair includes rotating ring and the stationary ring matched by seal face, and described rotating ring all overlaps
Being located on spring base, elastic parts acts on and makes rotating ring fit tightly with the seal face of stationary ring on rotating ring end face,
Described both sides stationary ring is respectively and fixedly installed on stationary seat and ring flange, arranges between described stationary seat and axle sleeve
There is bearing.
Contact type dry the most according to claim 1 operating seals, it is characterised in that: described elastic parts
Including the spring being arranged on spring base and the throw-out collar being arranged on both ends of the spring, described throw-out collar is in the effect of spring
Under be respectively acting on rotating ring end face.
Contact type dry the most according to claim 1 and 2 operating seals, it is characterised in that: described stationary ring
Between seat and axle sleeve, between end cap and axle sleeve, it is provided with sealing member.
Contact type dry the most according to claim 1 and 2 operating seals, it is characterised in that: described rotating ring
And it is provided with floating seal ring between spring base.
Contact type dry the most according to claim 1 operating seal, it is characterised in that: on described axle sleeve
Bearing two ends are respectively arranged with back-up ring, and bearing is fixedly mounted on axle sleeve by described back-up ring.
Contact type dry the most according to claim 1 operating seals, it is characterised in that: on described spring base
Being provided with guide plate, described guide plate is arranged in the axial direction, matches with the rotating ring outer face of spring base both sides
Close.
Contact type dry the most according to claim 1 operating seals, it is characterised in that: described housing and method
Between blue dish, being all connected by steady pin between stationary seat and housing, end cap is arranged on stationary seat, end cap
It is connected by connecting bolt is fixing with between ring flange.
8. operate according to the contact type dry described in claim 1 or 7 and seal, it is characterised in that: described housing
And between ring flange, between stationary seat and housing, between end cap and stationary seat, it is provided with end-face seal ring.
Contact type dry the most according to claim 1 operating seals, it is characterised in that: described axle sleeve passes through
Locking device is fixed and clamped in rotating shaft, and described locking device includes lock sleeve and the symmetry being arranged on axle sleeve
The hold-down ring being arranged on lock sleeve, described lock sleeve is symmetrically arranged wedge structure, and hold-down ring overlaps respectively
On the tapered ramp of lock sleeve both sides, it is connected between hold-down ring and lock sleeve tapered ramp, described lock
Tightly put and be provided with multiple axial elastic groove, be bolted between described hold-down ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610447446.8A CN105889515A (en) | 2016-06-20 | 2016-06-20 | Contact type dry operation seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610447446.8A CN105889515A (en) | 2016-06-20 | 2016-06-20 | Contact type dry operation seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105889515A true CN105889515A (en) | 2016-08-24 |
Family
ID=56730117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610447446.8A Pending CN105889515A (en) | 2016-06-20 | 2016-06-20 | Contact type dry operation seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105889515A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116398636A (en) * | 2023-04-03 | 2023-07-07 | 安徽松羽工程技术设备有限公司 | Self-lubricating low-noise mechanical seal |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4119276B2 (en) * | 2003-02-20 | 2008-07-16 | 日本ピラー工業株式会社 | End contact type mechanical seal |
| CN201126015Y (en) * | 2007-12-18 | 2008-10-01 | 昆山密友实业有限公司 | Fluid kinetic pressure type seal machine for kettle |
| CN102472394A (en) * | 2009-08-10 | 2012-05-23 | 日挥株式会社 | Mechanical seal device and treatment device |
| CN202301963U (en) * | 2011-10-21 | 2012-07-04 | 宁波安铱矢密封有限公司 | Novel double-end-face back-to-back mechanical sealing structure |
| CN203796939U (en) * | 2014-03-14 | 2014-08-27 | 成都一通密封有限公司 | Dry gas seal device for low-speed reaction kettle in medical industry |
| CN205841747U (en) * | 2016-06-20 | 2016-12-28 | 成都一通密封股份有限公司 | A kind of contact type dry operating seals |
-
2016
- 2016-06-20 CN CN201610447446.8A patent/CN105889515A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4119276B2 (en) * | 2003-02-20 | 2008-07-16 | 日本ピラー工業株式会社 | End contact type mechanical seal |
| CN201126015Y (en) * | 2007-12-18 | 2008-10-01 | 昆山密友实业有限公司 | Fluid kinetic pressure type seal machine for kettle |
| CN102472394A (en) * | 2009-08-10 | 2012-05-23 | 日挥株式会社 | Mechanical seal device and treatment device |
| CN202301963U (en) * | 2011-10-21 | 2012-07-04 | 宁波安铱矢密封有限公司 | Novel double-end-face back-to-back mechanical sealing structure |
| CN203796939U (en) * | 2014-03-14 | 2014-08-27 | 成都一通密封有限公司 | Dry gas seal device for low-speed reaction kettle in medical industry |
| CN205841747U (en) * | 2016-06-20 | 2016-12-28 | 成都一通密封股份有限公司 | A kind of contact type dry operating seals |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116398636A (en) * | 2023-04-03 | 2023-07-07 | 安徽松羽工程技术设备有限公司 | Self-lubricating low-noise mechanical seal |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |