CN106481818B - A kind of external stationary ring nose balance mechanism on mechanically-sealing apparatus - Google Patents
A kind of external stationary ring nose balance mechanism on mechanically-sealing apparatus Download PDFInfo
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- CN106481818B CN106481818B CN201610936314.1A CN201610936314A CN106481818B CN 106481818 B CN106481818 B CN 106481818B CN 201610936314 A CN201610936314 A CN 201610936314A CN 106481818 B CN106481818 B CN 106481818B
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- Prior art keywords
- seal box
- stationary ring
- ring
- gland
- balance mechanism
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Classifications
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- 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
- F16J15/3464—Mounting of the seal
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The present invention relates to a kind of external stationary ring nose balance mechanism on mechanically-sealing apparatus, including the rotating seat for being provided with rotating ring in seal box, and the first stop pin realized the sealing ring of floating seal and prevent from rotating is provided between rotating ring and rotating seat；External adjustable stationary ring nose balance mechanism is provided with the outer face of seal box：The external adjustable stationary ring nose balance mechanism includes being arranged on the gland of seal box outer end, and the gland is connected by the outer face of bolt and seal box；Adjust pad is provided between gland and the seal box outer face；Stationary ring compensation component is laid with the outer face circumferencial direction of the seal box.Said structure can arbitrarily adjust in the case where not dismantling single unit system, change flexible member, seal face is reached the ideal value of design than pressure；And the concentricity and followability of rotating ring and stationary ring are effectively guaranteed, improves sealing effectiveness and service life.
Description
Technical field
The present invention relates to mechanical seal field, in particular, be related to it is a kind of for external on mechanically-sealing apparatus
Formula stationary ring nose balance mechanism.
Background technology
At present, domestic and international large dredger uses L-type rubber seal device with pump shaft sealing device, and its operation principle is
3 static L-type rubber blankets and the axle sleeve dynamic friction of rotation, high pressure clean water is provided between L-type rubber seal to moisten
Sliding and barrier pumped medium, provides wear-compensating using the natural resiliency of rubber and its incidental spring and reaches sealing mesh
's.This sealing device adaptation condition narrow range, service life is unstable, and actual life is mostly 1 to 6 month, by beat,
Vibration, sharp particle and solid particle erosion, marine creature attachment, the influence of pump pressure operating mode, cause to seal using effect shakiness
It is fixed, eccentric wear and violent abrasive wear frequently occurs and cause system service life to shorten (actual life is mostly 1~6
Month).Time-consuming more, the cycle length of maintenance dismounting of large-scale dredge pump, reduces the utilization rate of equipment and installations of dredge pump, not only expends substantial amounts of maintenance
Fund, also slattern dredger many valuable engineering time.
In existing mechanical seal structure, after spring installation be a fixation and can not adjustment element, but special
Constrained on pump by pump body structure and installation dimension, it is impossible to ensure the stability of spring works height, this unstability is direct
Have influence on the spring pressure of mechanical seal.Spring force is mainly acted between sealing dynamic and static ring, is prevented equipment from starting, stopping or is situated between
Seal face is opened during matter pressure oscillation, compensation ring is followed end face and is applied closing force vertically, spring pressure is too small to be difficult to
Function as described above, otherwise cross the abrasion of conference aggravation sealing ring, have influence on the reliability and service life of whole mechanical seal.
Especially separately-loaded mechanical seal, pump chamber and the front and rear adjustment gap of impeller are big, the work of spring when mechanical seal is installed
Make height because the impeller clearance of pump adjusts to change, spring pressure is cannot get a stable design data, thus turn into machine
A difficult point in tool design of Sealing Structure.
Prior art discloses a kind of large dredger with secondary protection device resistance to mechanical seal of shaking, publication number
CN201858359U, in this kind of mechanical seal built in spring, it can not adjust.It is close that a kind of machinery is specifically designed for this invention
Seal apparatus.
The content of the invention
The present invention provides for technical problem present in solution known technology and a kind of is not dismantling the situation of single unit system
Under can arbitrarily adjust, change flexible member, seal face is reached the ideal value of design than pressure；And it is effectively guaranteed rotating ring
With the concentricity of stationary ring and the external stationary ring nose balance mechanism being used on mechanically-sealing apparatus of followability.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
A kind of external stationary ring nose balance mechanism on mechanically-sealing apparatus, including the peace in seal box
Rotating seat equipped with rotating ring, the first anti-rotation realized the sealing ring of floating seal and prevent from rotating is provided between rotating ring and rotating seat
Pin；External adjustable stationary ring nose balance mechanism is provided with the outer face of seal box：The external adjustable stationary ring nose balance
Mechanism includes being arranged on the gland of seal box outer end, and the gland is connected by the outer face of bolt and seal box；The gland
Adjust pad is provided between seal box outer face；Stationary ring compensation group is laid with the outer face circumferencial direction of the seal box
Part.
The present invention can also use following technical measures：
Stationary ring compensation component includes support pin, and the support pin includes spring mountings, location division and slotting
Dress portion, the cartridge part of the support pin are inserted into the mounting hole of gland, and the spring mountings of support pin are inserted into sealing
In the pilot hole of case, spring is set with the spring mountings of the support pin in pilot hole, the bullet in seal box
Spring holds out against throw-out collar.
Jackscrew is in axial direction additionally provided with the gland.
The present invention has the advantages and positive effects of：Because the present invention uses above-mentioned technical proposal, there is advantages below：
1st, adjust pad is provided between glands and seal box, therefore within the specific limits, can freely adjust its length.
2nd, being extruded because gland is formed to spring, gland is connected by adjustment bolt with seal box, in not device for disassembling,
Spring can freely be changed.
3rd, spring belongs to external in the present invention, and the working condition of observable spring, can pinpoint the problems in time at any time, spring knot
Structure overall structure is simple, practical reliable.
4th, the present invention can the dynamic source of additional belt equipment, realize the highly automated adjustment of spring works.
To sum up, overall structure of the present invention is simple, convenience in transport and in-site installation, is adapted to various equipment mounting conditions.Not
It can arbitrarily be adjusted in the case of dismounting single unit system, change flexible member, seal face is reached the ideal value of design than pressure；And
And it is effectively guaranteed the concentricity and followability of rotating ring and stationary ring；After mounting, encounter problems detachable, it is convenient and swift, protect
The reliability and maintenance convenience of the device are demonstrate,proved.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the sectional view of the second stop pin in the present invention.
In figure：1st, axle；2nd, axle sleeve；6th, stationary ring nose balance mechanism；23rd, rotating seat；24th, rotating ring；26th, the first stop pin；
30th, stationary seat；31st, stationary ring；32nd, sealing ring；40th, throw-out collar；41st, connecting bolt；42nd, the second stop pin；50th, seal box；51st, pacify
Fill step；52nd, pilot hole；60th, gland；61st, connecting bolt；62nd, adjust pad；63rd, spring；64th, support pin；65th, jackscrew；
66th, stationary ring compensation component.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing
Describe in detail as follows：
Refer to Fig. 1, Fig. 2, a kind of external stationary ring nose balance mechanism on mechanically-sealing apparatus, external is quiet
Annulate shaft is arranged on seal box to compensation mechanism, and its main function is to make a whole set of mechanical seal stationary part, makes stationary ring 31 not
Rotated by the rotation of rotating ring 24；Be arranged on positioned at seal box on the axle sleeve 2 in the outside of axle 1, the effect of axle sleeve be pump shaft not by
The attrition and attack of extraneous factor, for supporting and connecting the other parts part of mechanical seal；Filled in existing mechanical seal
Put including the rotating seat 23 of rotating ring 24 and the stationary seat 30 of stationary ring 31 in the seal box 50, rotating ring 24 and rotating seat 23,
Between stationary ring 31 and stationary seat 30 be provided with realize floating seal sealing ring 32 and prevent rotate the first stop pin 26, stationary ring and
The anchor ring fitting of rotating ring reaches the sealing function to pump cavity fluid；The stationary seat 30 is arranged in seal box 50, and dependence is close
The axial slip of seal 32 and sealing, are provided with throw-out collar 40, the throw-out collar passes through connecting bolt 41 between stationary seat 30 and seal box 50
It is connected with seal box；The rotating seat is fastenedly connected with axle sleeve, and is rotated with axle；Mechanical seal work when rotating ring 24 with
The rotation of axle sleeve 2 and rotate, be brought into close contact with two anchor rings of stationary ring 31, on same axle center, one is dynamic for rotating ring 24 and stationary ring 31
The one quiet sealing function reached to pump cavity fluid；In order that the seal face of rotating ring and stationary ring reaches the ratio pressure of design, ensure
Sealing effectiveness；The present invention is mainly characterized by being provided with external adjustable stationary ring nose balance mechanism 6 in the outer face of seal box 50, main
Act on and be to provide balancing force to stationary ring 31；The external adjustable stationary ring nose balance mechanism 6 includes being arranged on seal box
The gland 60 of outer end, the gland are connected by bolt 61 with the outer face of seal box 50；Outside the gland 60 and seal box 50
Adjust pad 62 is provided between end face, adjust pad 62 can be superimposed by multiple pads and be formed, by increasing or decreasing pad number
Amount reaches the purpose of adjustment spring works height, i.e. adjustment is applied to the nose balance power on stationary seat 30；The seal box 50
Outer face circumferencial direction on be laid with stationary ring compensation component 66.
The stationary ring compensation component includes support pin 64, and one end of the support pin is inserted on gland 60, support
The other end of pin 64 is inserted into the pilot hole 52 of seal box, is set with spring 63 in the support pin in pilot hole,
The spring top clamping throw-out collar 40 in seal box, the effect of support pin 64 can make the not flexural deformation of spring 63.
The second stop pin 42 is provided between the throw-out collar and stationary seat, the side of the second stop pin 42 is slided with seal box 50 matches somebody with somebody
Close, opposite side coordinates with stationary seat 30, and its main function is the rotation for preventing stationary seat 30 to be servo-actuated ring seat 23 and rotated.
Jackscrew 65 is in axial direction additionally provided with the gland 60, the main function of jackscrew 65 is to support gland 60 not curved
Song deformation, so as to ensure that the working depth of all springs 63 is consistent.
Mechanical seal of the present invention is that spring 63 provides balancing force by flexible member, overcome compensation ring auxiliary seal ring 32 with
Frictional force between seal box 50, compensation ring is closely adhered to the end face of uncompensated ring, form seal face first closure
Power, when main frame is full of pressure medium and starts working, seal face can be made to produce closing force, set so that seal face reaches
The ratio pressure of meter, realizes convection body dynamic sealing.
Apparatus of the present invention install convenient, actual life up to 3 years or higher, are avoided because frequently changing sealing system
Caused utilization rate of equipment and installations is low, a large amount of human and material resources and security risk of maintenance dismounting consumption.Overall structure letter of the present invention
It is single, convenience in transport and in-site installation, it is adapted to various equipment mounting conditions.Can arbitrarily it be adjusted in the case where not dismantling single unit system
Whole, replacing flexible member, makes seal face reach the ideal value of design than pressure；And it is effectively guaranteed the same of rotating ring and stationary ring
Heart degree and followability；After mounting, encounter problems detachable, it is convenient and swift, it ensure that the reliability of the device and maintenance are convenient
Property.
It is described above to be only the preferred embodiments of the present invention, any formal limitation not is made to the present invention,
Every technical spirit according to the present invention belongs to any simple modification made for any of the above embodiments, equivalent variations and modification
In the range of technical solution of the present invention.
Claims (3)
1. a kind of external stationary ring nose balance mechanism on mechanically-sealing apparatus, including in seal box (50)
The rotating seat (23) of rotating ring (24) is installed, the sealing ring for realizing floating seal is provided between rotating ring (24) and rotating seat (23)
(32) and prevent rotate the first stop pin (26)；It is characterized in that：It is provided with the outer face of seal box (50) external adjustable
Stationary ring nose balance mechanism (6)：The external adjustable stationary ring nose balance mechanism (6) includes being arranged on seal box (50) outer end
Gland (60), the gland (60) is connected by bolt (61) with the outer face of seal box (50)；The gland (60) and close
Adjust pad (62) is provided between joint sealing (50) outer face；It is laid with the outer face circumferencial direction of the seal box (50) quiet
Ring compensation component (66).
2. the external stationary ring nose balance mechanism according to claim 1 on mechanically-sealing apparatus, its feature exists
In：The stationary ring compensation component (66) includes support pin (64), and the support pin (64) includes spring mountings, location division
And cartridge part, the cartridge part of the support pin (64) are inserted into the mounting hole of gland (60), the bullet of support pin (64)
Spring installation portion is inserted into the pilot hole (52) of seal box (50), the spring peace of the support pin (64) in pilot hole (52)
Spring (63) is set with dress portion, the spring (63) holds out against throw-out collar (40) in seal box (50).
3. the external stationary ring nose balance mechanism according to claim 1 on mechanically-sealing apparatus, its feature exists
In：Jackscrew (65) is in axial direction additionally provided with the gland (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610936314.1A CN106481818B (en) | 2016-11-01 | 2016-11-01 | A kind of external stationary ring nose balance mechanism on mechanically-sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610936314.1A CN106481818B (en) | 2016-11-01 | 2016-11-01 | A kind of external stationary ring nose balance mechanism on mechanically-sealing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106481818A CN106481818A (en) | 2017-03-08 |
| CN106481818B true CN106481818B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610936314.1A Active CN106481818B (en) | 2016-11-01 | 2016-11-01 | A kind of external stationary ring nose balance mechanism on mechanically-sealing apparatus |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109854750A (en) * | 2019-01-14 | 2019-06-07 | 山东太极龙塑胶科技有限公司 | Non-concentric elastic compensating seal assembly |
| CN110671499A (en) | 2019-10-31 | 2020-01-10 | 武汉鑫华封机械制造有限责任公司 | Floating seal ring working abrasion clearance adjusting and compensating device |
| CN114060522A (en) * | 2021-11-10 | 2022-02-18 | 浙江环誉泵业科技有限公司 | Independent floating type static ring with compact structure and mechanical seal comprising same |
| CN114060520A (en) * | 2021-11-10 | 2022-02-18 | 浙江环誉泵业科技有限公司 | Linkage type double-sealing-tape mechanical seal |
| CN114278607A (en) * | 2021-12-29 | 2022-04-05 | 成都龙源科能机械设备有限公司 | Mechanical seal of high-flow charging pump |
Citations (9)
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|---|---|---|---|---|
| FR2582373B1 (en) * | 1985-05-24 | 1990-03-02 | Gueytron Jean Claude | LATERAL FRICTION SEALING DEVICE |
| GB2361966A (en) * | 2000-05-04 | 2001-11-07 | Flowserve Man Co | A split mechanical face seal |
| CN1506601A (en) * | 2002-12-12 | 2004-06-23 | 中国科学院长春光学精密机械与物理研 | Mechanical sealer for precision shafting |
| CN2821302Y (en) * | 2005-09-02 | 2006-09-27 | 四川日机密封件有限公司 | External built-in inner for type mechanical seal device |
| CN200968421Y (en) * | 2006-11-20 | 2007-10-31 | 河南省中原大化集团有限责任公司 | Bellow type machine oil seal |
| CN101725712A (en) * | 2009-11-02 | 2010-06-09 | 浙江长城减速机有限公司 | Complete split type mechanical seal for kettle |
| CN202284645U (en) * | 2011-11-13 | 2012-06-27 | 浙江兰天机械密封件有限公司 | Mechanical seal device with simple wash water seal |
| CN203412763U (en) * | 2013-01-18 | 2014-01-29 | 苏州京程科技有限责任公司 | Mechanical sealing device for water-lubricated oil-free single screw air compressor |
| CN206268451U (en) * | 2016-11-01 | 2017-06-20 | 天津市合润科技有限责任公司 | A kind of external stationary ring nose balance mechanism on mechanically-sealing apparatus |
-
2016
- 2016-11-01 CN CN201610936314.1A patent/CN106481818B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2582373B1 (en) * | 1985-05-24 | 1990-03-02 | Gueytron Jean Claude | LATERAL FRICTION SEALING DEVICE |
| GB2361966A (en) * | 2000-05-04 | 2001-11-07 | Flowserve Man Co | A split mechanical face seal |
| CN1506601A (en) * | 2002-12-12 | 2004-06-23 | 中国科学院长春光学精密机械与物理研 | Mechanical sealer for precision shafting |
| CN2821302Y (en) * | 2005-09-02 | 2006-09-27 | 四川日机密封件有限公司 | External built-in inner for type mechanical seal device |
| CN200968421Y (en) * | 2006-11-20 | 2007-10-31 | 河南省中原大化集团有限责任公司 | Bellow type machine oil seal |
| CN101725712A (en) * | 2009-11-02 | 2010-06-09 | 浙江长城减速机有限公司 | Complete split type mechanical seal for kettle |
| CN202284645U (en) * | 2011-11-13 | 2012-06-27 | 浙江兰天机械密封件有限公司 | Mechanical seal device with simple wash water seal |
| CN203412763U (en) * | 2013-01-18 | 2014-01-29 | 苏州京程科技有限责任公司 | Mechanical sealing device for water-lubricated oil-free single screw air compressor |
| CN206268451U (en) * | 2016-11-01 | 2017-06-20 | 天津市合润科技有限责任公司 | A kind of external stationary ring nose balance mechanism on mechanically-sealing apparatus |
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| Publication number | Publication date |
|---|---|
| CN106481818A (en) | 2017-03-08 |
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