CN2509385Y - Locking type multi-stage shaft seal assembly device - Google Patents
Locking type multi-stage shaft seal assembly device Download PDFInfo
- Publication number
- CN2509385Y CN2509385Y CN01232863U CN01232863U CN2509385Y CN 2509385 Y CN2509385 Y CN 2509385Y CN 01232863 U CN01232863 U CN 01232863U CN 01232863 U CN01232863 U CN 01232863U CN 2509385 Y CN2509385 Y CN 2509385Y
- Authority
- CN
- China
- Prior art keywords
- ring
- locking
- seal ring
- assembly device
- axle envelope
- 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 - Lifetime
Links
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 238000001727 in vivo Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 239000000945 filler Substances 0.000 description 7
- 239000004519 grease Substances 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 5
- 210000004907 gland Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a multistage bearing seal assembly device of locking formula for valve, reciprocating pump, centrifugal pump class, it includes the assembly, makes three sealing ring that the medium does not leak outward and make air, foreign matter not get into sealing ring, locking clamping ring and the loop type double-screw bolt in the bearing seal, three sealing ring is separated its equidistance by the locking clamping ring respectively to it is internal together to arrange the assembly in, locks it with the loop type double-screw bolt. The utility model has the advantages of accurate positioning of the sealing ring, no deviation, no distortion, no derailment, high safety and reliability, simple and convenient and quick field installation, and is suitable for the shaft seal reconstruction of the field pump.
Description
Technical field:
The utility model relates to a kind of gland seal device that is used for valve, reciprocating pump, centrifugal pump class, is meant the multistage axle envelope of a kind of locking assembly device especially.
Background technique:
The also disclosed (patent No. of using at present: 99216731.0) multistage gland seal device, the structure that exists seal ring does not have the problem that seal ring appearance skew, distortion, derailing in the use were installed, caused in locking (location), has reduced the safety reliability that axle seals.
Summary of the invention:
In view of above reason, the purpose of this utility model is in order to provide a kind of sealability, working principle identical with former multistage axle envelope, and has the multistage axle envelope of the locking assembly device of locking function.
The purpose of this utility model is realized by following technological scheme, it comprises an axle envelope total adult (5), make valve (pump) the in-vivo medium not seal ring of external leakage (1), (2), (3) and make valve (pump) outer air, foreign matter not enter a seal ring (4) in the axle envelope, lock trim ring (7) and ring-like double-screw bolt (9), seal ring (1), (2), (3), (4) are opened its equidistant separation by locking trim ring (7) respectively, and together place in total adult (5), with ring-like double-screw bolt (9) with its locking.
The utility model places the filler that forms between valve (pump) body (6) and the axle (10) to contain space (8), and is fixed on valve (pump) body (6) by former filler hold-down bolt (18).
The structure of total adult (5) is a flange-type open circles column type, and the filler of its outside diameter size and valve (pump) body (6) is contained the corresponding coupling in aperture, and the screw hole dimensions on the flange is mated thereupon, constitutes with filler to contain " standard series " axle envelope assembly that the aperture is a benchmark.Total adult (5) top is provided with the lubricating cup (17) of grease up.
The structure of seal ring (1), (2), (3), (4) is identical, constitutes one by ring seat (11), ring-like boss (12), ring body (13), lip (14).
Ring-like boss (12) shape on the seal ring can be R type, square type, ladder type, trigonometric form, diamond pattern; The ring body (13) that adopts has certain clearance with valve (pump) axle (10), and has constituted ring-like space (15) between total adult (5); The lip that adopts directly touches and less pretightening force (self-tightening power) is arranged with being coupling.
One is made by elastic material in seal ring (1), (2), (3), (4).
Closed ring-like space (16) is arranged between seal ring (1), (2), (3), (4).
Locking trim ring (7) is hollow step short cylindrical type, adopts a plurality of; Place in total adult (5), and constituted ring-like space (20) between total adult (5) hole wall, the ring-like boss (12) on the seal ring places in this space, realizes accurate positioning, locking firmly.
The multistage axle envelope of this locking assembly device good seal performance can be used in the axle envelope of two kinds of Different Exercise Mode, that is: to-and-fro motion and rotate-stationary mode.When valve (pump) turned round, the pressure of medium at first acted in the ring-like space (15) of chopped-off head seal ring (1) in it, made the ring body (13) of seal ring produce resiliently deformable and axle (10) and fitted and enter working state and realize sealing; Secondary seal ring (2), (3) are not because of contacting with medium at this moment, pressure in the space (16) is slightly larger than atmospheric pressure, therefore secondary seal ring and axle have certain clearance (have only lip be coupling touch and less self-tightening power arranged) to be in standby working state, when the chopped-off head seal wears is damaged the sealing failure, the secondary seal ring enters working state with above-mentioned working principle, and the like damage one by one and enter working state one by one, realize sealing.On-stream, have only primary seal less, and the lubricating cup (17) of grease up is arranged at total adult (5) top with the rubbing surface that touching rubs realizes sealing that is coupling.The rubbing surface place of axle envelope all has lubricated, so mechanical loss is little, and long service life.This axle is enclosed on the valve and leaks no maintenance load not having more than 8 years working life; Using the working life of turning round continuously on reciprocating pump, the centrifugal pump is about 1 year.
The utility model has the advantages that:
1, is convenient to seriation, Normalized Design, can be the supporting use of water pump manufacturing firm.
2, on-the-spot simple installation, quick is applicable to and is using the on-the-spot retrofit of axial seal of pump.
3, in the use, the seal ring accurate positioning, non-migration, non-warping, do not derail the safety reliability height.
Description of drawings:
Fig. 1 is the multistage axle envelope of a locking assembly device structural representation
Fig. 2 is the seal ring structure schematic representation
Fig. 3 is the sealing dynamic schematic diagram
Embodiment:
In the multistage axle envelope of the described locking of the present embodiment assembly device, seal ring (1), (2), (3), (4) are the convex table type structure, make one by ring seat (11), ring-like boss (12), ring body (13), lip (14), adopt elastic material to make; Ring-like boss (12) on the seal ring is shaped as the R type; Locking trim ring (7) is hollow step short cylindrical type, adopts 4; Seal ring (1) is the chopped-off head seal ring, seal ring (2), (3) are the secondary seal ring, seal ring (4) is the final stage seal ring, seal rings at different levels by locking trim ring (7) with its respectively equidistant separation come, ring-like boss (12) on the seal ring places in the space (20) that constitutes between locking trim ring (7) and the total adult (5), with ring-like double-screw bolt (9) it is compressed, seal ring is constituted the multistage axle envelope of locking assembly device by firm being locked in total adult (5).This assembly device is enclosed within on the axle (10), places filler to contain in the space (8), and is fixed on valve (pump) body (6) by former filler hold-down bolt (18).
The structure of total adult (5) is a flange-type open circles column type, and the filler of its outside diameter size and valve (pump) body (6) is contained the corresponding coupling in aperture, and the screw hole dimensions on the flange is mated thereupon.Total adult (5) top is provided with the lubricating cup (17) of grease up.
Referring to Fig. 1, the lip of seal ring (1), (2), (3) is towards pressure medium one side; The lip of seal ring (4) is towards " atmospheric pressure " side; Formed " closed " space (16) between seal ring and the seal ring, injected lubricating grease in it and be lubricated.
Referring to Fig. 3, when valve (pump) turns round, the pressure of medium, at first act on the ring body (13) of chopped-off head seal ring (1), ring body (13) produces the part resiliently deformable, this ring body and lip thereof and axle (10) is fitted form sealing strip, because the sealing strip area of contact is less; Have lubricating grease to be lubricated again in secondary seal ring (2), (3), mechanical loss is little, and seal ring has locking device again, long service life, safety reliability height; At this moment, be not subjected to the influence of pressure medium in the closed ring-like space (16) that secondary seal ring (2), (3) form, have only lip to touch less self-tightening power with being coupling, when chopped-off head seal wears bad time, the secondary seal ring enters working state successively one by one with above-mentioned working principle; Realize sealing.Final stage seal ring (4) (showing as Fig. 1), its lip (atmospheric pressure one side) toward the outer side touch less self-tightening power with being coupling, and its effect is that valve (pump) outer air and foreign matter do not enter in the axle envelope.
Claims (6)
1, the multistage axle envelope of a kind of locking assembly device, it is characterized in that comprising an axle envelope total adult (5), make valve (pump) the in-vivo medium not seal ring of external leakage (1), (2), (3) and make valve (pump) outer air, foreign matter not enter a seal ring (4) in the axle envelope, lock trim ring (7) and ring-like double-screw bolt (9), seal ring (1), (2), (3), (4) are opened its equidistant separation by locking trim ring (7) respectively, and together place in total adult (5), with ring-like double-screw bolt (9) with its locking.
2, the multistage axle envelope of locking as claimed in claim 1 assembly device is characterized in that the structure of seal ring (1), (2), (3), (4) is identical, constitutes one by ring seat (11), ring-like boss (12), ring body (13), lip (14).
3, the multistage axle envelope of locking as claimed in claim 2 assembly device is characterized in that the ring-like boss (12) on the seal ring is shaped as R type, square type, ladder type, trigonometric form or diamond pattern.
4,, it is characterized in that seal ring (1), (2), (3), (4) make one by elastic material as the multistage axle envelope of claim 1 or 2 or 3 described lockings assembly device.
5, the multistage axle envelope of locking as claimed in claim 1 assembly device is characterized in that closed ring-like space (16) is arranged between seal ring (1), (2), (3), (4).
6, the multistage axle envelope of locking as claimed in claim 1 assembly device, its
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01232863U CN2509385Y (en) | 2001-08-08 | 2001-08-08 | Locking type multi-stage shaft seal assembly device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01232863U CN2509385Y (en) | 2001-08-08 | 2001-08-08 | Locking type multi-stage shaft seal assembly device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2509385Y true CN2509385Y (en) | 2002-09-04 |
Family
ID=33646832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01232863U Expired - Lifetime CN2509385Y (en) | 2001-08-08 | 2001-08-08 | Locking type multi-stage shaft seal assembly device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2509385Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162528A (en) * | 2010-02-19 | 2011-08-24 | 卡尔·弗罗伊登伯格公司 | Radial shaft seal for separating two media |
| CN103775651A (en) * | 2012-10-18 | 2014-05-07 | 上海汉钟精机股份有限公司 | Multi-level lip seal leakproof structure for compressor shaft seal |
| CN111379734A (en) * | 2020-04-15 | 2020-07-07 | 安徽乾丰新型肥料有限公司 | Seal assembly of corrosion-resistant pump transmission shaft |
-
2001
- 2001-08-08 CN CN01232863U patent/CN2509385Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162528A (en) * | 2010-02-19 | 2011-08-24 | 卡尔·弗罗伊登伯格公司 | Radial shaft seal for separating two media |
| CN103775651A (en) * | 2012-10-18 | 2014-05-07 | 上海汉钟精机股份有限公司 | Multi-level lip seal leakproof structure for compressor shaft seal |
| CN111379734A (en) * | 2020-04-15 | 2020-07-07 | 安徽乾丰新型肥料有限公司 | Seal assembly of corrosion-resistant pump transmission shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110808 Granted publication date: 20020904 |