CN209129919U - A kind of spring external anhydrous mechanical seal structure - Google Patents
A kind of spring external anhydrous mechanical seal structure Download PDFInfo
- Publication number
- CN209129919U CN209129919U CN201821942895.0U CN201821942895U CN209129919U CN 209129919 U CN209129919 U CN 209129919U CN 201821942895 U CN201821942895 U CN 201821942895U CN 209129919 U CN209129919 U CN 209129919U
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- Prior art keywords
- ring
- gland
- axle sleeve
- spring
- mechanical seal
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Abstract
The utility model provides a kind of spring external anhydrous mechanical seal structure, including axle sleeve, rotating ring, stationary ring and gland, the axle sleeve is socketed on pump shaft, the outside of described axle sleeve one end is equipped with the connector that fixed hub is equipped in drive ring and drive ring, the rotating ring and stationary ring are socketed on axle sleeve and contradict, the rotating ring is fixed on axle sleeve by fixing piece, the gland is socketed in the outside of stationary ring, the side of the gland is equipped with the throw-out collar contradicted with stationary ring, the side of the throw-out collar is equipped with the spring screw fixed for throw-out collar and gland and is socketed with the limit spring contradicted with throw-out collar on spring screw, the gland is equipped with positioning cards used for positioning far from the side of rotating ring, one end of the positioning cards is connected to axle sleeve and is fixed on gland far from sleeve end by positioning screw, it is equipped with and mends between the throw-out collar and stationary ring Repay spring.The advantages of the utility model: limit spring is not easy to plug, and is easily installed and is repaired, and device versatility is good, and the service life is long.
Description
Technical field
The utility model relates to mechanical seal field, in particular to a kind of spring external anhydrous mechanical seal structure.
Background technique
Mechanical seal is perpendicular to rotation axis end face by least a pair in Fluid pressure and compensation mechanism elastic force or magnetic force
Effect and auxiliary seal cooperation under keep fit closely and constituted with respect to sliding prevent fluid leak device.
Mechanical seal is divided into that balanced type rotating ring is compensation and the compensation mechanical seal of balanced type stationary ring according to design feature,
The middle compensation mechanical seal of balanced type stationary ring contains in the medium for corroding impurity particle more suitable for conveying, but due to seal face
Since long-play is in the corrosivity operating condition containing particle, along with the good centrifugal pump of mounting and adjusting beats in operation,
The influence of play, vibration to mechanical seal, inevitably some unavoidable media are precipitated seal face, if the medium after precipitation is not
It is rinsed water in time to wash away, can accumulate in and be uniformly distributed on the small spring of compensation mechanism, cause the elastic force of spring to fail, especially
It is the conveying pulp water, percolate, paper in the industries such as thermal power generation, garbage power, petrochemical industry, papermaking, smelting, sewage treatment
The medium containing particle erosion such as slurry, desulfurization slurry, sludge, the requirement to mechanical seal are just more stringent.
Utility model content
For above-mentioned deficiency in the prior art, the utility model provides a kind of spring external anhydrous mechanical seal knot
Structure, compact-sized, spring is not easy to plug, long service life, and versatility is good.
In order to reach above-mentioned purpose of utility model, the technical solution adopted in the utility model are as follows:
A kind of spring external anhydrous mechanical seal structure, including axle sleeve, rotating ring, stationary ring and gland, the axle sleeve socket
On pump shaft, the outside of described axle sleeve one end, which is equipped with, to be equipped with for the connection that axle sleeve and pump shaft is fixed in drive ring and drive ring
Part, the rotating ring and stationary ring are socketed on axle sleeve and rotating ring and stationary ring contradict, and the rotating ring is blocked by axle sleeve and passed through solid
Determine part to be fixed on axle sleeve, the gland is socketed in the outside of stationary ring, and the gland is equipped with far from the side of rotating ring and supports with stationary ring
The throw-out collar of touching, the side of the throw-out collar be equipped with the spring screw fixed for throw-out collar and gland and be socketed on spring screw with
The limit spring that throw-out collar contradicts, the gland are equipped with positioning cards used for positioning, the positioning cards far from the side of rotating ring
One end be connected to axle sleeve and be fixed on gland by positioning screw far from sleeve end, set between the positioning screw and gland
There is locating pad, counterbalance spring is equipped between the throw-out collar and stationary ring.
Further, axle sleeve O-ring is equipped between the axle sleeve and pump shaft, between the rotating ring and axle sleeve and stationary ring and pressure
It is equipped with rotating ring O-ring between lid, stationary ring O-ring is equipped between the stationary ring and gland.
Further, it is trapezoidal or saw-tooth thread screw or bolt that the connector, which is teeth shape,.
Further, the fixing piece is pin or pin shaft.
Further, the quantity of the counterbalance spring is at least 2 and is uniformly distributed around pump spindle center.
Further, the gland is equipped with the through-hole for installing connection and is equipped with pad close to rotating ring side in gland
Piece.
Further, the rotating ring and stationary ring are made of the carbofrax material of a pair of identical pressureless sintering.
Further, the gasket is no asbestos pad.
The utility model has the following beneficial effects:
The utility model limit spring not with media contact, and in the atmosphere that is exposed to completely of limit spring, convenient for observation,
Installation and maintenance, suitable for conveying the medium containing particle erosion, limit spring is not easy to plug, particularly suitable for mechanical seal without
It is run under the operating condition of flushing water, water resource can be saved, dynamic and static ring uses the carbofrax material of a pair of identical pressureless sintering, leads to
It is good with property, to improve the service life of mechanical seal, it is equipped with sealing ring between each contact surface, can be improved device
Leakproofness, the quantity of counterbalance spring are at least 2 and are uniformly distributed around pump spindle center, can mend to the power of limit spring
It repays, improves the compactness of dynamic and static ring, connector is that teeth shape is trapezoidal or saw-tooth thread screw or bolt, is easy to obtain
It takes, stable drive.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
The appended drawing reference table of comparisons:
1- axle sleeve O-ring, 2- rotating ring, 3- stationary ring, 4- throw-out collar, 5- axle sleeve, 6- connector, 7- drive ring, 8- fixing piece, 9-
Rotating ring O-ring, 10- stationary ring O-ring, 11- limit spring, 12- spring screw, 13- gasket, 14- gland, 15- locating pad, 16-
Positioning screw, 17- positioning cards, 18- counterbalance spring.
Specific embodiment
Further illustrate specific embodiment of the present utility model with reference to the accompanying drawing.Wherein identical components phase
Same appended drawing reference indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper" and
"lower" refers to that the direction in attached drawing, word "inner" and "outside" refer respectively to the side towards or away from geometric center of specific component
To.
In order to make the content of the utility model be easier to be clearly understood, below in conjunction in the utility model embodiment
Attached drawing, the technical scheme in the utility model embodiment is clearly and completely described.
As shown in Figure 1, a kind of spring external anhydrous mechanical seal structure, including axle sleeve 5, rotating ring 2, stationary ring 3 and gland
14, the axle sleeve 5 is socketed on pump shaft, and the outside of described 5 one end of axle sleeve, which is equipped in drive ring 7 and drive ring 7, to be equipped with for will
The connector 6 that axle sleeve 5 and pump shaft are fixed, the rotating ring 2 and stationary ring 3 are socketed on axle sleeve 5 and rotating ring 2 and stationary ring 3 contradict, institute
It states rotating ring 2 to block by axle sleeve 5 and be fixed on axle sleeve 5 by fixing piece 8, the gland 14 is socketed in the outside of stationary ring 3, institute
State gland 14 and be equipped with the throw-out collar 4 that contradicts with stationary ring 3 far from the side of rotating ring 2, the side of the throw-out collar 4 be equipped with for throw-out collar 4 and
The fixed spring screw 12 of gland 14 and the limit spring 11 contradicted with throw-out collar 4, the gland are socketed on spring screw 12
14 sides far from rotating ring 2 are equipped with positioning cards 17 used for positioning, and one end of the positioning cards 17 is connected to axle sleeve 5 and remote
5 ends of off-axis set are fixed on gland 14 by positioning screw 16, and locating pad 15 is equipped between the positioning screw 16 and gland 14,
Counterbalance spring 18 is equipped between the throw-out collar 4 and stationary ring 3.
Axle sleeve O-ring 1 is equipped between the axle sleeve 5 and pump shaft, between the rotating ring 2 and axle sleeve 5 and stationary ring 3 and gland 14
Between be equipped with rotating ring O-ring 9, between the stationary ring 3 and gland 14 be equipped with stationary ring O-ring 10.
The connector 6 is that teeth shape is trapezoidal or saw-tooth thread screw or bolt.
The fixing piece 8 is pin or pin shaft.
The quantity of the counterbalance spring 18 is at least 2 and is uniformly distributed around pump spindle center.
The gland 14 is equipped with the through-hole for installing connection and is equipped with gasket 13 close to 2 side of rotating ring in gland 14.
The rotating ring 2 and stationary ring 3 are made of the carbofrax material of a pair of identical pressureless sintering.
The gasket 13 is no asbestos pad.
Working principle:
The utility model by the connector 6 on drive ring 7 by the fixed pump shaft of mechanical seal sleeve 5, revolve by pump shaft high speed
When turning, so that mechanical seal sleeve 5 drives rotating ring 2 to rotate, stationary ring 3 pushes throw-out collar 4 and Fluid pressure in limit spring 11
Under the action of with 2 moment of rotating ring keep fit-state, and by the pressure of limit spring 11 and sealing medium rotation rotating ring 2
With the contact surface of stationary ring 3, pressing force appropriate is generated, fits closely the two end faces.Limit spring 11 is exposed to completely
Atmosphere in be not easy the filter medium clogging being compromised, in addition rotating ring 2 and stationary ring 3 are the silicon carbide using a pair of identical pressureless sintering
Material, versatility is good, effectively improves the wearability of dynamic and static ring, to improve the service life of mechanical seal, compensates bullet
Spring 18 can compensate elastic force, improve compactness.
The foregoing is merely the preferred embodiment of the utility model patent, it is not intended to limit the utility model specially
Benefit, all made any modifications, equivalent replacements, and improvements etc. within the spirit and principle of the utility model patent should all include
Within the protection scope of the utility model patent.
Claims (8)
1. a kind of spring external anhydrous mechanical seal structure, including axle sleeve (5), rotating ring (2), stationary ring (3) and gland (14),
It is characterized in that, the axle sleeve (5) is socketed on pump shaft, and the outside of described axle sleeve (5) one end is equipped with drive ring (7) and drive ring
(7) it is equipped in for the connector (6) that axle sleeve (5) and pump shaft are fixed, the rotating ring (2) and stationary ring (3) are socketed in axle sleeve
(5) on and rotating ring (2) and stationary ring (3) contradict, and the rotating ring (2) is blocked by axle sleeve (5) and is fixed on axis by fixing piece (8)
Cover on (5), the gland (14) is socketed in the outside of stationary ring (3), the gland (14) far from the side of rotating ring (2) be equipped with it is quiet
The throw-out collar (4) that ring (3) contradicts, the side of the throw-out collar (4) are equipped with the spring screw fixed for throw-out collar (4) and gland (14)
(12) and on spring screw (12) it is socketed with the limit spring (11) contradicted with throw-out collar (4), the gland (14) is far from rotating ring
(2) side is equipped with positioning cards used for positioning (17), and one end of the positioning cards (17) is connected to axle sleeve (5) and separate
Axle sleeve (5) end is fixed on gland (14) by positioning screw (16), is equipped between the positioning screw (16) and gland (14)
Locating pad (15) is equipped with counterbalance spring (18) between the throw-out collar (4) and stationary ring (3).
2. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the axle sleeve
(5) it is equipped with axle sleeve O-ring (1) between pump shaft, between the rotating ring (2) and axle sleeve (5) and between stationary ring (3) and gland (14)
Equipped with rotating ring O-ring (9), stationary ring O-ring (10) are equipped between the stationary ring (3) and gland (14).
3. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the connector
It (6) be teeth shape is trapezoidal or saw-tooth thread screw or bolt.
4. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the fixing piece
It (8) is pin or pin shaft.
5. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the compensation bullet
The quantity of spring (18) is at least 2 and is uniformly distributed around pump spindle center.
6. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the gland
(14) it is equipped with the through-hole for installing connection and is equipped with gasket (13) close to rotating ring (2) side in gland (14).
7. a kind of spring external anhydrous mechanical seal structure according to claim 1, it is characterised in that: the rotating ring
(2) it is made with stationary ring (3) of the carbofrax material of a pair of identical pressureless sintering.
8. a kind of spring external anhydrous mechanical seal structure according to claim 6, it is characterised in that: the gasket
It (13) is no asbestos pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821942895.0U CN209129919U (en) | 2018-11-23 | 2018-11-23 | A kind of spring external anhydrous mechanical seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821942895.0U CN209129919U (en) | 2018-11-23 | 2018-11-23 | A kind of spring external anhydrous mechanical seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209129919U true CN209129919U (en) | 2019-07-19 |
Family
ID=67246580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821942895.0U Active CN209129919U (en) | 2018-11-23 | 2018-11-23 | A kind of spring external anhydrous mechanical seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209129919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340171A (en) * | 2018-11-23 | 2019-02-15 | 广州凯里莱电气机械有限公司 | A kind of spring external anhydrous mechanical seal structure |
-
2018
- 2018-11-23 CN CN201821942895.0U patent/CN209129919U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340171A (en) * | 2018-11-23 | 2019-02-15 | 广州凯里莱电气机械有限公司 | A kind of spring external anhydrous mechanical seal structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" | ||
| CP03 | "change of name, title or address" |
Address after: 511400 No.1 South row, Youzhan Road, Longqi village, Shawan Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: Guangdong kaililai Electrical Machinery Co.,Ltd. Address before: 510000 1 / F, South row, Youzhan Road, Longqi village, Shawan Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU KAILILAI ELECTRIC MACHINERY Co.,Ltd. |