CN202579292U - Single end face mechanical seal device for slurry pump - Google Patents
Single end face mechanical seal device for slurry pump Download PDFInfo
- Publication number
- CN202579292U CN202579292U CN201220225810.3U CN201220225810U CN202579292U CN 202579292 U CN202579292 U CN 202579292U CN 201220225810 U CN201220225810 U CN 201220225810U CN 202579292 U CN202579292 U CN 202579292U
- Authority
- CN
- China
- Prior art keywords
- gland
- friction ring
- axle sleeve
- main
- static friction
- 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 - Fee Related
Links
Images
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
- F16J15/34—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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The utility model relates to a single end face mechanical seal device for a slurry pump. The device comprises a main gland, an auxiliary gland and connecting bolts or screws, wherein a shaft sleeve is arranged in the main gland and the auxiliary gland; a shaft body penetrates through the shaft sleeve; a dynamic friction ring is arranged on the shaft sleeve and contacted with a static friction ring; the static friction ring is arranged between the auxiliary gland and the shaft sleeve; a spring is connected to the main gland and directly acts on the static friction ring; the main gland is fixed on the auxiliary gland through a connecting screw; a flushing water nozzle is arranged on the main gland; a lip sealing ring used as a second seal is arranged outside the main gland and contacted with a pressing plate; the pressing plate is connected with the main gland through a connecting screw; and a tightening device consisting of a tightening inner ring, a tightening outer ring and a bolt is arranged at one side end of the shaft sleeve. The device has the characteristics that the device has a reasonable and compact structure and long service life, is conveniently and reliably used, and difficultly leaks, using safety and effectiveness are enhanced, and the like.
Description
Technical field
The utility model relates to a kind of single mechanical end face seal device that is used for the slag stock pump, belong to the mechanical sealing technology field.
Background technique
Pump is adaptable across industries such as chemical industry, oil, pharmacy, agricultural chemicals, dyestuff, paint, smelting, plating, food.The arbitrary medium of any concentration of long-term delivery under the condition of-20 ℃ of-180 ℃ of temperature.So under this abominable working condition; Add the unreasonable of pump structure design, pump exists the situation that mechanical seal box and axle sleeve turn round with pump shaft simultaneously, along with the mechanical sealing case of the running of pump shaft expands with heat and contract with cold; Therefore produce the situation that blow-by is leaked; Serious pollution environment, reduced productivity effect, shortened the working life of pump.Chinese patent discloses a kind of mortar pump mechanical seal device (notice of authorization number: CN201763670U); It comprises axle, is sleeved on axle sleeve, base on the axle and the gland that matches with base; Base and gland all are sleeved on the axle sleeve; It is characterized in that being provided with K shape circle in the space that said base and axle sleeve surround, wherein the left side two K shapes circle is arranged in the same way, and the right two K shapes circle is arranged in opposite directions; The axle sleeve periphery in two K shapes circle neutral position is provided with water guiding ring on the right, and water guiding ring is communicated with outer circulation through diversion import, diversion outlet.But this mechanical seal can't be applied to novel slag stock pump, and the existing mechanical sealing can't be applied on the novel slag stock pump, and mechanical seal is easy to generate leakage after the slag slurry pump pressure increases, thereby causes security incident.
The model utility content
The purpose of the utility model is to overcome the deficiency that existing technology exists; And provide a kind of rational in infrastructure, compact, and easy to use, reliable, long service life; Be difficult for producing and reveal, strengthen the single mechanical end face seal device that is used for the slag stock pump of safety in utilization and validity.
The purpose of the utility model is accomplished through following technological scheme, and it includes main gland, secondary gland and attachment bolt or screw, is provided with axle sleeve in described main gland and the secondary gland; Cross-under has axis body in the axle sleeve; Axle sleeve is provided with the kinetic friction ring, and the kinetic friction loop contacts has the static friction ring, and the static friction ring is located between secondary gland and the axle sleeve; One spring is connected on the main gland and acts directly on the static friction ring, and main gland is fixed on the secondary gland through joint bolt.
Also be provided with the flushing water nozzle on the described main gland; The outside of main gland also is provided with the lip seal circle as the sealing of second road; The lip seal circle contacts with pressing plate; And pressing plate and main gland through joint bolt be linked together, described axle sleeve one side also be provided with form by tightening inner ring and tightening outer ring and bolt three parts, can axle sleeve be fixed on the tightening device on the axis body.
Be provided with the driving pin that can make the pump current when running up, drive the rotation of kinetic friction ring between described axle sleeve and the kinetic friction ring; Be provided with the stop pin that can in the static friction ring, slide between described static friction ring and the main gland.
Between described axle sleeve and the axis body, between axle sleeve and the kinetic friction ring, all be provided with the O RunddichtringO between static friction ring and secondary gland, secondary gland and the main gland; It is inner that the O RunddichtringO can prevent that impurity from getting into the sealing position; The O RunddichtringO is processed by fluorine rubber.
Be fixed with limiting stopper through joint bolt on the end face of described main gland, limiting stopper is connected in the restraining groove of axle sleeve.
The utility model utilizes the kinetic friction ring to cooperate with the static friction ring, can regulate hydraulic pressure automatically, can remain pressure stability, keep sealing, leaks thereby prevent to produce, and has avoided the generation of security incident; Have rational in infrastructurely, compact, easy to use, reliable, long service life be difficult for to produce is revealed, and strengthens characteristics such as safety in utilization and validity.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Label among the figure has: axle sleeve 1, kinetic friction ring 2, static friction ring 3, secondary gland 4, attachment bolt 5,7,12,19,22; Main gland 6, lip seal circle 8, pressing plate 9, tightening inner ring 10, tightening outer ring 11; Compression spring 13, O RunddichtringO 14,15,16,17,20, spring 18, limiting stopper 21.
Embodiment
To combine accompanying drawing that the utility model is further described below: shown in Figure 1, the utility model mainly includes main gland 6, secondary gland 4 and attachment bolt or screw, is provided with axle sleeve 1 in described main gland 6 and the secondary gland 4; Cross-under has axis body in the axle sleeve 1, and axle sleeve 1 is provided with kinetic friction ring 2, and 2 contacts of kinetic friction ring have static friction ring 3; Static friction ring 3 is located between secondary gland 4 and the axle sleeve 1; One spring 18 is connected on the main gland 6 and acts directly on the static friction ring 3, and main gland 6 is fixed on the secondary gland 4 through joint bolt, also is provided with the flushing water nozzle on the main gland 6; Main gland 6 outside lip seal circles in addition 8 are done the sealing of second road; Lip seal circle 8 contacts with pressing plate 9, and pressing plate 9 and main gland 6 through joint bolt be linked together, the tightening device is made up of tightening inner ring 10 and tightening outer ring 11 and attachment bolt 12 3 parts; During tightening, mechanical seal just has been fastened on the axis body together for tightening device and axle sleeve.The single mechanical end face seal of this novel slag stock pump adopts bidirectional balanced form to reach zero leakage.After novel slag stock pump running, water is by cleaning hose entering mechanical seal inside, under the effect of spring, and spring promotes the static friction ring and the kinetic friction ring constantly carries out move left and right, thereby regulates pressure, therefore can be in the state of sealing all the time, prevents heads.Static friction ring, kinetic friction ring are processed by silicon carbide reaction-sintered (RBSiC) and pressureless sintering silicon carbide (SSiC) respectively, and sealing is better.The sealing of the close formation of lip seal circle second road is adopted in secondary sealing, gets into sealed inside to prevent introduced contaminants, thereby has caused the inefficacy of mechanical seal, the working life of having reduced mechanical seal.
As preferably, be provided with driving pin between described axle sleeve 1 and the kinetic friction ring 2.Driving pin can make the pump current when running up, drive the rotation of kinetic friction ring, thereby sealing effect is better.
As preferably, on the described main gland 6 stop pin is arranged, stop pin is fixed main gland 6.Stop pin can slide in the static friction ring, thereby can guarantee that seal face fits all the time.
As preferably, described axle sleeve 1 is provided with secondary seal lip seal ring 8 sealings again between main gland 6, inner to prevent foreign matter entering machine envelope, makes mechanical seal lose function.
As preferably, the outer surface of described axle sleeve 1 one ends has the tightening device can axle sleeve 1 be fixed on the axis body.
As preferably, between described axle sleeve 1 and the axis body, between axle sleeve and the kinetic friction ring, all be provided with the O RunddichtringO between static friction ring and secondary gland, secondary gland and the main gland.It is inner that the O RunddichtringO can prevent that impurity from getting into the sealing position.The O RunddichtringO is processed by fluorine rubber.
As preferably, be fixed with limiting stopper through coupling on the end face of described main gland, limiting stopper is connected in the restraining groove of axle sleeve.Limiting stopper is set is convenient to locate the mounting point of main gland on axle sleeve.
Embodiment:
The single mechanical end face seal device of a kind of novel slag stock pump of this example is like Fig. 1: an axle sleeve 1 is arranged, be provided with driving pin between kinetic friction ring 2 and the axle sleeve 1; Also be provided with stop pin between static friction ring 3 and the main gland 6, and spring act directly on the static friction ring, can make primary seal end face joint more compact.On the secondary gland 4 attachment bolt is arranged; Be provided with attachment bolt in the major and minor gland and connect, thus the perfection more that the major-minor gland is combined, thus also practiced thrift material; Also be provided with the sealing of lip seal circle second road between main gland 6 and the pressing plate 9, prevent that introduced contaminants from getting in the Seal cage, causes seal failure.And connect by Cock screw between main gland 6 and the pressing plate 9, clench as locking device with clamp screw between tightening inner ring 10 and the tightening outer ring 11, when locking device begins to be locked on the axis body with axle sleeve 1, thereby guaranteed effective transmission.Be fixed with limiting stopper 21 through coupling on the described main gland 6, limiting stopper is connected in the restraining groove of axle sleeve 1; Also be provided with the flushing water nozzle on the main gland 6.Between axle sleeve 1 and the axis body, between axle sleeve 1 and the interior kinetic friction ring 2, between main gland 6 and the outer static friction ring 7, between outer kinetic friction ring 8 and transmission ring 13 and the secondary gland 4, all be provided with the O RunddichtringO shown in figure between secondary gland 4 and the main gland 6.
During use, when novel slag stock pump turned round, spring 18 can promote, static friction ring 2,3, thereby makes dynamic and static friction ring 2,3 move left and right, regulated pressure, therefore can remain sealing surface and fit.
The above is merely the specific embodiment of the utility model; But the structure characteristic of the utility model is not limited thereto; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.
Claims (5)
1. single mechanical end face seal device that is used for the slag stock pump, it includes main gland, secondary gland and attachment bolt or screw, it is characterized in that being provided with axle sleeve in described main gland and the secondary gland; Cross-under has axis body in the axle sleeve; Axle sleeve is provided with the kinetic friction ring, and the kinetic friction loop contacts has the static friction ring, and the static friction ring is located between secondary gland and the axle sleeve; One spring is connected on the main gland and acts directly on the static friction ring, and main gland is fixed on the secondary gland through joint bolt.
2. the single mechanical end face seal device that is used for the slag stock pump according to claim 1; It is characterized in that also being provided with the flushing water nozzle on the described main gland; The outside of main gland also is provided with the lip seal circle as the sealing of second road; The lip seal circle contacts with pressing plate; And pressing plate and main gland through joint bolt be linked together, described axle sleeve one side also be provided with form by tightening inner ring and tightening outer ring and bolt three parts, can axle sleeve be fixed on the tightening device on the axis body.
3. the single mechanical end face seal device that is used for the slag stock pump according to claim 1 is characterized in that being provided with between described axle sleeve (1) and the kinetic friction ring (2) driving pin that can make the pump current when running up, drive the rotation of kinetic friction ring; Be provided with the stop pin that can in the static friction ring, slide between described static friction ring (3) and the main gland (6).
4. the single mechanical end face seal device that is used for the slag stock pump according to claim 1 is characterized in that between described axle sleeve and the axis body, between axle sleeve and the kinetic friction ring, all be provided with the O RunddichtringO between static friction ring and secondary gland, secondary gland and the main gland; It is inner that the O RunddichtringO can prevent that impurity from getting into the sealing position; The O RunddichtringO is processed by fluorine rubber.
5. the single mechanical end face seal device that is used for the slag stock pump according to claim 1 is characterized in that being fixed with limiting stopper (21) through joint bolt on the end face of described main gland (6), and limiting stopper (21) is connected in the restraining groove of axle sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220225810.3U CN202579292U (en) | 2012-05-20 | 2012-05-20 | Single end face mechanical seal device for slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220225810.3U CN202579292U (en) | 2012-05-20 | 2012-05-20 | Single end face mechanical seal device for slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579292U true CN202579292U (en) | 2012-12-05 |
Family
ID=47248708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220225810.3U Expired - Fee Related CN202579292U (en) | 2012-05-20 | 2012-05-20 | Single end face mechanical seal device for slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579292U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195277A (en) * | 2016-08-30 | 2016-12-07 | 宁波天工机械密封有限公司 | Clinker elevator mechanical seal |
| CN111819380A (en) * | 2018-02-22 | 2020-10-23 | 伊格尔博格曼德国有限公司 | Mechanical sealing device with split type shaft sleeve |
-
2012
- 2012-05-20 CN CN201220225810.3U patent/CN202579292U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195277A (en) * | 2016-08-30 | 2016-12-07 | 宁波天工机械密封有限公司 | Clinker elevator mechanical seal |
| CN111819380A (en) * | 2018-02-22 | 2020-10-23 | 伊格尔博格曼德国有限公司 | Mechanical sealing device with split type shaft sleeve |
| CN111819380B (en) * | 2018-02-22 | 2022-05-17 | 伊格尔博格曼德国有限公司 | Mechanical sealing device with split type shaft sleeve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202579292U (en) | Single end face mechanical seal device for slurry pump | |
| CN101608723B (en) | Non-maintaining sleeve compensator with double sealing structures | |
| CN202756285U (en) | Double-end-face mechanical sealing device used for desulfurization main circulation pump | |
| CN202756286U (en) | Double-end-face mechanical sealing device used for slurry pump | |
| CN202579290U (en) | Single mechanical sealing device for sewage pump | |
| CN201874723U (en) | Main shaft-sealing structure for hydroturbines | |
| CN2828510Y (en) | High-pressure non-leakage flange | |
| CN201116640Y (en) | Multi-channel rotating joint | |
| CN104121441A (en) | Mass flow water cooling and rotating device | |
| CN208982847U (en) | A kind of rotary joint that connection sealing is good | |
| CN205206768U (en) | Tap is led in air guide | |
| CN204663957U (en) | High Temperature High Pressure forces hot water circuit mechanical sealing device used for pump | |
| CN208281520U (en) | A kind of valve base sealing structure of middle line butterfly valve | |
| CN202579291U (en) | Dual-end-surface mechanical sealing device for aluminum oxide slurry pump | |
| CN202900750U (en) | Series-type double-end-surface mechanical sealing device for high-temperature-heat depleted pump | |
| CN205479361U (en) | Durable external mechanical seal | |
| CN214171620U (en) | Self-locking high-pressure rubber pipe assembly | |
| CN104019304A (en) | High-temperature rotating connector | |
| CN104251226B (en) | Combined type spindle seal for hydraulic power fan of cooling tower | |
| CN103939447A (en) | Double-seal bolt | |
| CN211820674U (en) | Sealed output structure | |
| CN202597696U (en) | Sealing device of shaft and shaft hole under high-temperature and high-pressure environment | |
| CN204004404U (en) | A kind of major diameter swivel joint | |
| CN215861861U (en) | High-reliability zero-leakage three-way shuttle valve | |
| CN205805991U (en) | Centrifugal pump of horizontal axis is without rinsing axle envelope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20160520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |