CN202212141U - Silicon carbide mechanical seal device for stirring device - Google Patents
Silicon carbide mechanical seal device for stirring device Download PDFInfo
- Publication number
- CN202212141U CN202212141U CN2011201559560U CN201120155956U CN202212141U CN 202212141 U CN202212141 U CN 202212141U CN 2011201559560 U CN2011201559560 U CN 2011201559560U CN 201120155956 U CN201120155956 U CN 201120155956U CN 202212141 U CN202212141 U CN 202212141U
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- Prior art keywords
- ring
- sealing
- axle sleeve
- mechanically
- spring
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- Expired - Lifetime
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- Sealing Devices (AREA)
Abstract
The utility model discloses a silicon carbide mechanical seal device for a stirring device, which comprises a primary seal ring surface and a secondary seal ring surface. The primary seal ring surface comprises a first moving ring (3), a first fixed ring (4), a first spring seat (5), a first spring (6), a bush (12) and a fastening screw (13), a gland (8) made of materials with general performances is sleeved outside the first spring seat (5), a lower pressing plate (22) made of high-performance materials is arranged below the gland (8), the secondary seal ring surface comprises a second moving ring (9), a second fixed ring (10), a second spring seat (11) and a second spring (23), an aligning roller bearing (16) is arranged above the secondary seal ring surface, and a heavy chuck is arranged above the aligning roller bearing (16). The silicon carbide mechanical seal device for the stirring device can be in an operating state with large axial-radial swing amount for a long time, and is high in stability and reliability, wide in applicable range and long in service life.
Description
Technical field
The utility model relates to a kind of mechanically-sealing apparatus, is specifically related to a kind of carborundum mechanically-sealing apparatus that is used for agitating device.
Background technology
At present; In sterile field such as medicine, biochemistry, food, cosmetics, gene technology; Along with the quality requirement to product is increasingly high; This Seal of Equipment property of agitating device there has been very high requirement, mostly has been provided with mechanically-sealing apparatus between the shaft of existing agitating device and the stirring shell.
As shown in Figure 1, be the carborundum mechanically-sealing apparatus that is used for agitating device of prior art, this mechanically-sealing apparatus generally includes two-stage sealing anchor ring: chopped-off head sealing anchor ring and secondary seal anchor ring.Chopped-off head sealing anchor ring is by first rotating ring 3 ' be set in shaft 1 ' go up and axle sleeve 2 ' interference fit first rotating ring 3 ' be provided with sealing ring with axle sleeve 2 ' cooperation place; First rotating ring 3 ' upper surface and first stationary ring 4 ' the lower surface be in interference fit (promptly being close to) state; First stationary ring 4 ' and first spring base 5 ' between be provided with throw-out collar, spring and drive screw; Throw-out collar and first stationary ring 4 ' between with pin be connected, screw-driven, first stationary ring 4 ' the outside be socketed with gland 10 '.When agitator is worked; Along with the rotation of shaft, the axle sleeve and first rotating ring will rotate under the drive of shaft together simultaneously, and the then relative shaft of first stationary ring does not rotate; But under the effect of spring; Spring must push first stationary ring, makes the lower surface of first stationary ring cooperate (being close to) on the upper surface of first rotating ring, makes first stationary ring and first rotating ring form sealed friction surface.What the secondary seal device adopted is common, the commonly used mechanically-sealing apparatus of a cover; It comprises seal chamber and sealing anchor ring; The sealing ring face comprise second rotating ring 6 that is set in shaft axle sleeve 2 ' top ', second stationary ring 7 ' and second spring base 8 ', second spring base 8 ' with holding screw 9 ' with axle sleeve 2 ' be connected.When agitator is worked; Rotation along with shaft; Axle sleeve will rotate under the drive of shaft together simultaneously, thereby second spring base and second rotating ring also rotate thereupon, are provided with sealing ring between second stationary ring and the gland; The end face of second rotating ring cooperates (being close to) with the end face of second stationary ring under the pressuring action of spring, thereby forms sealed friction surface.For the swing that reduces shaft and vibration influence to sealing property, also be provided with in this mechanically-sealing apparatus deep groove ball bearing 11 '.
Though the above-mentioned carborundum mechanically-sealing apparatus that is used for agitating device can satisfy Seal of Equipment effects such as agitators preferably, still there are 4 weak points in it in practical application:
1. no screw or pin are connected fixingly between first rotating ring and the axle sleeve, cause the sealing reliability of first rotating ring and shaft not high.
2. deep groove ball bearing is applicable to and bears radial load; And the carborundum mechanically-sealing apparatus that is used for agitating device is following in working order; Should bear radial load; Can bear axial load again,, shorten the service life of mechanically-sealing apparatus so the use of deep groove ball bearing structure has influenced the result of use of this mechanically-sealing apparatus.
3. the holding screw transmission is unreliable, hinders shaft easily, hinders axle sleeve, causes shaft or axle sleeve yielding, thereby this mechanically-sealing apparatus was lost efficacy prematurely, and shorten service life.
4. this gland that is used for the carborundum mechanically-sealing apparatus of agitating device is designed to one, and causing all materials of gland all is the high material of performance, and cost increases.
The utility model content
The utility model technical problem to be solved is the deficiency to above prior art; A kind of carborundum mechanically-sealing apparatus that is used for agitating device is provided; This carborundum mechanically-sealing apparatus that is used for agitating device can be in the diameter of axle for a long time under the bigger duty of oscillating quantity, and stability is strong, and reliability is high; Applied widely, long service life.
For addressing the above problem, the utility model provides a kind of carborundum mechanically-sealing apparatus that is used for agitating device, comprises chopped-off head sealing anchor ring and secondary seal anchor ring on the axle sleeve that is socketed in shaft.Chopped-off head sealing ring face comprises first rotating ring, first stationary ring, first spring base and first spring, and the outside of first stationary ring is socketed with lower platen.The secondary seal anchor ring comprises second rotating ring, second stationary ring, second spring base and second spring.Said chopped-off head sealing anchor ring also comprises lining, holding screw, and said lining is fixedly connected with axle sleeve between the axle sleeve and first rotating ring and through holding screw, and first rotating ring and axle sleeve cooperation place are provided with sealing ring.
After adopting above structure; The utility model compared with prior art; Have the following advantages: this carborundum mechanically-sealing apparatus that is used for agitating device adopts the anti-rotating ring project organization of pulling out; Between first rotating ring and axle sleeve, lining is set, fixes through holding screw between axle sleeve and the lining, be provided with sealing ring between first rotating ring and the axle sleeve; Compare the connected mode of no screw between first rotating ring and the axle sleeve of prior art or pin, first rotating ring and the sealing reliability between the shaft of this mechanically-sealing apparatus are higher.
Said sealing ring comprises MSE sealing ring and O RunddichtringO, and MSE sealing ring and O RunddichtringO are between the axle sleeve and first rotating ring.The good sealing effect of MSE sealing ring and O RunddichtringO can be realized sealing function well.
Said secondary seal anchor ring top is provided with self-aligning roller bearing, and the self-aligning roller bearing two ends are provided with outside framework oil seal.The setting of self-aligning roller bearing makes agitator in working order down; Can effectively reduce the swing and the influence of vibration of shaft to sealing; Can bear axially and bidirectional force radially; And outside framework oil seal has stronger static seal property, wear resistence, corrosion resistance and heat-resisting quantity, can improve its sealing property greatly as the auxiliary seal of this mechanically-sealing apparatus, thereby also increase the service life of this mechanically-sealing apparatus.
The axle sleeve of the top of said self-aligning roller bearing is provided with heavy chuck, and heavy chuck comprises cutting ferrule, upper chuck, lower chuck, bolt, and chuck is socketed on axle sleeve, and upper chuck and lower chuck pass through bolt on cutting ferrule.Heavy chuck is fixedly clamped to the axle sleeve on the shaft; Reduced the influence that vibration, beat because of shaft cause to mechanically-sealing apparatus; Make mechanically-sealing apparatus under vibration, stablize, realize Seal of Equipment performances such as stirrings reliably, and this heavy chuck kind of drive is installed simple, convenient.
Be provided with a lower platen below the said gland, gland is the general performance material, and lower platen is the high-performance material.The material that gland uses is the material of general performance, and lower platen uses high performance material just can reach instructions for use, and this has reduced the use of high performance material and has directly reduced production cost.
Description of drawings
Shown in Figure 1 is the structural representation of the mechanically-sealing apparatus of prior art;
Shown in Figure 2 is the structural representation of the mechanically-sealing apparatus of the utility model.
Wherein: 1 ', shaft; 2 ', axle sleeve; 3 ', first rotating ring; 4 ', first stationary ring; 5 ', first spring base; 6 ', second rotating ring; 7 ', second stationary ring; 8 ', second spring base; 9 ', holding screw; 10 ', gland; 11 ', deep groove ball bearing; 1, shaft; 2, axle sleeve; 3, first rotating ring; 4, first stationary ring; 5, first spring base; 6, first spring; 7, throw-out collar; 8, gland; 9, second rotating ring; 10, second stationary ring; 11, second spring base; 12, lining; 13, holding screw; 14, MSE sealing ring; 15, O RunddichtringO; 16, self-aligning roller bearing; 17, outside framework oil seal; 18, cutting ferrule; 19, upper chuck; 20, lower chuck; 21, bolt; 22, lower platen; 23, second spring.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to detail.
As shown in Figure 2; The utility model is used for the carborundum mechanically-sealing apparatus of agitating device, comprises chopped-off head sealing anchor ring and secondary seal anchor ring on the axle sleeve 2 that is socketed in shaft 1: chopped-off head sealing ring face comprise that first rotating ring 3, first stationary ring 4, first spring base 5 and first spring, 6, the first rotating rings 3 are set on the axle sleeve 2 and with axle sleeve 2 interference fit; The lower surface of the upper surface of first rotating ring 3 and first stationary ring 4 is interference fit; Promptly be in interference fit (promptly being close to) state, first spring 6 is arranged between first stationary ring 4 and first spring base 5, is provided with throw-out collar 7 between first spring 6 and first stationary ring 4; Use pin connection, screw-driven between the throw-out collar 7 and first stationary ring 4; One end of first spring 6 is against on the throw-out collar 7, and the other end is against in the spring eye of first spring base 5, and the outside of first spring base 5 is socketed with gland 8; The secondary seal anchor ring comprises second rotating ring 9, second stationary ring 10, second spring base 11 and second spring 23; Second rotating ring 9 is set on the axle sleeve 2; The lower surface of the upper surface of second rotating ring 9 and second stationary ring 10 is interference fit; Promptly be in interference fit (promptly being close to) state, second spring 23 is arranged between second rotating ring 9 and second spring base 11.First rotating ring 3, first stationary ring 4, second stationary ring 10 are made for carbofrax material.
Said chopped-off head sealing anchor ring also comprises lining 12, holding screw 13, and lining 12 is fixedly connected with axle sleeve 2 between the axle sleeve 2 and first rotating ring 3 and through holding screw 13, and first rotating ring 3 is provided with sealing ring with axle sleeve 2 cooperation places.Said sealing ring comprises MSE sealing ring 14 and O RunddichtringO 15; MSE sealing ring 14 and O RunddichtringO 15 are between the axle sleeve 2 and first rotating ring 3; Wherein MSE sealing ring 14 is at up and down between the contact-making surface of the axle sleeve 2 and first rotating ring 3, and O RunddichtringO 15 is between the left and right sides contact-making surface of the axle sleeve 2 and first rotating ring 3.Lining 12 cuts into two halves, is installed in the step groove of first rotating ring 3, is fixedly connected with axle sleeve 2 through holding screw 13, thereby realizes the transmission effect.
The axle sleeve 2 of said secondary seal anchor ring top is provided with self-aligning roller bearing 16, and self-aligning roller bearing 16 two ends are provided with outside framework oil seal 17.
The top of said self-aligning roller bearing 16 is provided with heavy chuck; Heavy chuck comprises cutting ferrule 18, upper chuck 19, lower chuck 20, bolt 21; Cutting ferrule 18 is socketed on axle sleeve 2, and upper chuck 19 is fixed on the cutting ferrule 18 through bolt 21 with lower chuck 20, and bolt 21 is a hexagon-headed bolt.
Be provided with a lower platen 22 below the said gland 8, be provided with the O RunddichtringO between the lower platen 22 and first stationary ring 4, gland 8 is general performance material (promptly being become by the general performance material), and lower platen 22 is high-performance material (promptly being made into by high performance material).The general performance material refers to 2Cr13 or 4Cr13, and high performance material refers to Hastelloy (Hast.c) or 316L.
The carborundum mechanically-sealing apparatus that is used for agitating device possesses chopped-off head sealing anchor ring and the sealing of secondary seal anchor ring two-stage; Can produce a large amount of heats in working order; Therefore be provided with buffer solution flushing hole and passage in this mechanically-sealing apparatus; Can take away a large amount of work calorieses, thereby make said mechanically-sealing apparatus safer, reliable.
Above embodiment be to the explanation of the utility model with explain that further rather than to the restriction of the utility model, any modification of in the interest field of the utility model, being done all falls into the protection domain of the utility model.
Claims (5)
1. carborundum mechanically-sealing apparatus that is used for agitating device; Comprise chopped-off head sealing anchor ring and secondary seal anchor ring on the axle sleeve (2) that is socketed in shaft (1); Chopped-off head sealing ring face comprises first rotating ring (3), first stationary ring (4), first spring base (5) and first spring (6); The outside of first spring base (5) is socketed with gland (8); The secondary seal anchor ring comprises second rotating ring (9), second stationary ring (10), second spring base (11) and second spring (23); It is characterized in that: said chopped-off head sealing anchor ring also comprises lining (12) and holding screw (13), and said lining (12) is positioned between axle sleeve (2) and first rotating ring (3) and through holding screw (13) and is fixedly connected with axle sleeve (2), and first rotating ring (3) is provided with sealing ring with axle sleeve (2) cooperation place.
2. the carborundum mechanically-sealing apparatus that is used for agitating device according to claim 1; It is characterized in that: said sealing ring comprises MSE sealing ring (14) and O RunddichtringO (15), and MSE sealing ring (14) and O RunddichtringO (15) are positioned between axle sleeve (2) and first rotating ring (3).
3. the carborundum mechanically-sealing apparatus that is used for agitating device according to claim 1 is characterized in that: said secondary seal anchor ring top is provided with self-aligning roller bearing (16), and self-aligning roller bearing (16) two ends are provided with outside framework oil seal (17).
4. the carborundum mechanically-sealing apparatus that is used for agitating device according to claim 3; It is characterized in that: the axle sleeve (2) of the top of said self-aligning roller bearing (16) is provided with heavy chuck; Heavy chuck comprises cutting ferrule (18), upper chuck (19), lower chuck (20), bolt (21); Cutting ferrule (18) is socketed on the axle sleeve (2), and upper chuck (19) and lower chuck (20) are fixed on the cutting ferrule (18) through bolt (21).
5. the carborundum mechanically-sealing apparatus that is used for agitating device according to claim 1; It is characterized in that: be provided with a lower platen (22) below the said gland (8); Gland (8) is 2Cr13 or 4Cr13 material, and lower platen (22) is Hastelloy or 316L material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201559560U CN202212141U (en) | 2011-05-12 | 2011-05-12 | Silicon carbide mechanical seal device for stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201559560U CN202212141U (en) | 2011-05-12 | 2011-05-12 | Silicon carbide mechanical seal device for stirring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202212141U true CN202212141U (en) | 2012-05-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201559560U Expired - Lifetime CN202212141U (en) | 2011-05-12 | 2011-05-12 | Silicon carbide mechanical seal device for stirring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202212141U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291650A (en) * | 2013-01-14 | 2013-09-11 | 涂晶 | Circulating pump sealing structure under negative/atmospheric pressure state |
| CN104667789A (en) * | 2013-12-02 | 2015-06-03 | 逸盛大化石化有限公司 | Efficient stirring tank for PTA (pure terephthalic acid) refining unit |
| CN104667791A (en) * | 2013-12-02 | 2015-06-03 | 逸盛大化石化有限公司 | Stirring tank for high-temperature and high-pressure crystallization system of PTA (pure terephthalic acid) refining unit |
| CN111271454A (en) * | 2018-12-04 | 2020-06-12 | 中国科学院沈阳自动化研究所 | Double-end-face mechanical seal for underwater vehicle |
-
2011
- 2011-05-12 CN CN2011201559560U patent/CN202212141U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291650A (en) * | 2013-01-14 | 2013-09-11 | 涂晶 | Circulating pump sealing structure under negative/atmospheric pressure state |
| CN103291650B (en) * | 2013-01-14 | 2016-02-10 | 涂晶 | A kind of circulating pump sealing structure under negative-pressure/normal-pressure state |
| CN104667789A (en) * | 2013-12-02 | 2015-06-03 | 逸盛大化石化有限公司 | Efficient stirring tank for PTA (pure terephthalic acid) refining unit |
| CN104667791A (en) * | 2013-12-02 | 2015-06-03 | 逸盛大化石化有限公司 | Stirring tank for high-temperature and high-pressure crystallization system of PTA (pure terephthalic acid) refining unit |
| CN104667789B (en) * | 2013-12-02 | 2017-01-04 | 逸盛大化石化有限公司 | PTA refined unit high efficiency agitation tank |
| CN111271454A (en) * | 2018-12-04 | 2020-06-12 | 中国科学院沈阳自动化研究所 | Double-end-face mechanical seal for underwater vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee after: Ningbo fu'erken Ceramic Technology Co. Ltd. Address before: 315104 Jin Yuan Road, Yinzhou investment and business center, Zhejiang, Ningbo, China, No. 666 Patentee before: Ningbo Vulcan Mechanical Seals Manufacturing Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee after: Ningbo Vulcan Polytron Technologies Inc Address before: 315104 Jin Yuan Road, Yinzhou investment and entrepreneurship center, Ningbo, Zhejiang 666 Patentee before: Ningbo fu'erken Ceramic Technology Co. Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |