CN201434079Y - Labyrinth combined type mechanical sealing device - Google Patents
Labyrinth combined type mechanical sealing device Download PDFInfo
- Publication number
- CN201434079Y CN201434079Y CN2009200130599U CN200920013059U CN201434079Y CN 201434079 Y CN201434079 Y CN 201434079Y CN 2009200130599 U CN2009200130599 U CN 2009200130599U CN 200920013059 U CN200920013059 U CN 200920013059U CN 201434079 Y CN201434079 Y CN 201434079Y
- Authority
- CN
- China
- Prior art keywords
- labyrinth seal
- cover
- pump
- seal cover
- labyrinth
- 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
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a labyrinth combined type mechanical sealing device, Wherein, a labyrinth seal sleeve (6) is disposed on the front end of the mechanical sealing device, that is, between the shaft hole (51) and the pump shaft (3) on the pump cover; the labyrinth seal sleeve (6) is fixed on the pump shaft (3); a thread slot (61) is formed on the front part of the outer ring surface of the labyrinth seal sleeve (6), and the thread slot (61) is in sliding and rotating fit with the shaft hole (51) of the pump cover to form a spiral pump to push out the particles in the shaft hole, thatis, in the thread slot of the labyrinth seal sleeve; thereby, particles in medium can not pass, and can not enters the friction end face, thus, the mechanical sealing device of the utility model prevents the wearing to end face caused by particles in medium.
Description
Technical field
The utility model relates to shaft sealer, particularly mechanical seal device.
Background technique
Mechanical seal device is by at least one pair of rotating ring and stationary ring perpendicular to axis, and rotating ring or stationary ring encircle by way of compensation under axial elasticity element (spring) effect and make dynamic and static environmental protection hold the formation that is rotatably assorted of sliding of fitting, and prevent the device that working fluid leaks along running shaft.Mechanical seal device is arranged between body such as pump cover and pump shaft, and rotating ring is connected with axle or axle sleeve, and stationary ring and stationary seat or be connected with gland on the body by stationary seat are finished the rotation axis seal effect by rotating ring and the rotation of stationary ring abrasive end face slide relative.
During mechanical seal device work, need suitable operating mode, need promptly to prevent that the granule foreign in the medium from entering rotating ring and stationary ring abrasive end face, to prevent granule foreign abrasive end face is caused wearing and tearing, otherwise influence the sealing and the working life of mechanical seal device.
The prior art mechanical seal device is the assisting agency of anti-particle not, and the flowing medium in the pump chamber acts directly on the mechanical seal device, and the particle in the medium causes the wearing and tearing of friction side easily.
The model utility content
The purpose of this utility model provides and a kind ofly prevents that the particle in the medium from entering into abrasive end face, prevents that particle in the medium is to the labyrinth combined type mechanical sealing device of abrasive end face wearing and tearing.
The utility model comprises at least one pair of rotating ring and stationary ring perpendicular to axis, and rotating ring or stationary ring encircle by way of compensation under axial elasticity element (spring) effect and make, stationary ring keeps fitting sliding and is rotatably assorted, rotating ring is connected with axle or axle sleeve, stationary ring is connected with machine sealed cover on the body, it is characterized in that being provided with the labyrinth seal cover at the axis hole and the between centers of body, the labyrinth seal cover is made of the axle sleeve that is fixedly mounted on the axle, on the first half of the outer ring surface that this labyrinth seal is overlapped, offer thread groove, the outer ring surface of labyrinth seal cover and the axis hole of body slide and are rotatably assorted, thread groove that labyrinth seal puts and axis hole form volute pump, the media particle that enters in the labyrinth seal thread die cutting groove is constantly carried back labyrinth seal cover front end, the particle in the medium can not be passed through.
The utility model is simple in structure, the thread groove that labyrinth seal puts, can prevent that the particle in the medium from passing through, the mechanical seal device that particle in the medium and dynamic and static ring is slided be rotatably assorted is isolated, can not enter into abrasive end face, prevent that the particle in the medium from causing wearing and tearing to abrasive end face, improved mechanical sealing performance, and prolonged mechanical seal working life.
Description of drawings
Fig. 1 is the utility model example structure schematic representation.
Embodiment
The utility model comprises at least one pair of rotating ring 1 and stationary ring 2 perpendicular to axis, and rotating ring or stationary ring encircle by way of compensation under axial elasticity element (spring) effect and make, stationary ring keeps fitting sliding and is rotatably assorted, rotating ring 1 is connected with axle 3 or axle sleeve, stationary ring 2 is connected with machine sealed cover 4 on the body, axis hole 51 and 3 on axle at body 5 are provided with labyrinth seal cover 6, labyrinth seal cover 6 is fixedly mounted on the axle 3, on the first half of the outer ring surface of this labyrinth seal cover 6, offer thread groove 61, the outer ring surface of labyrinth seal cover 6 and the axis hole of body 51 slide and are rotatably assorted, thread groove 61 on the labyrinth seal cover 6 forms volute pump with body axis hole 51, constantly carry back labyrinth seal to overlap 6 front end the media particle that enters in the labyrinth seal thread die cutting groove 61, the particle in the medium can not be passed through.
Shown in accompanying drawing 1 embodiment, be to be used for using on the centrifugal pump, stationary ring 2 is connected with machine sealed cover 4 on the pump cover 5 ', axis hole 51 and 3 of pump shafts at pump cover 5 ' are provided with labyrinth seal cover 6, labyrinth seal cover 6 is fixedly mounted on the pump shaft 3, offer thread groove 61 on the first half of the outer ring surface of this labyrinth seal cover 6, the outer ring surface of labyrinth seal cover 6 slides with the axis hole of pump cover 51 and is rotatably assorted, thread groove 61 on the labyrinth seal cover 6 and pump cover 5 ' axis hole 51 formation volute pumps.
Claims (2)
1, labyrinth combined type mechanical sealing device, comprise at least one pair of rotating ring and stationary ring perpendicular to axis, and rotating ring or stationary ring encircle by way of compensation under the effect of axial elasticity element and make, stationary ring keeps fitting sliding and is rotatably assorted, rotating ring is connected with axle or axle sleeve, stationary ring is connected with machine sealed cover on the body, it is characterized in that: axis hole and between centers at body are provided with the labyrinth seal cover, the labyrinth seal cover is fixedly mounted on the axle, on the first half of the outer ring surface that this labyrinth seal is overlapped, offer thread groove, the outer ring surface of labyrinth seal cover and the axis hole of body slide and are rotatably assorted, thread groove that labyrinth seal puts and axis hole form volute pump, front end with the media particle that enters in the labyrinth seal thread die cutting groove carries back labyrinth seal to overlap can not pass through the particle in the medium.
2, labyrinth combined type mechanical sealing device, comprise at least one pair of rotating ring and stationary ring perpendicular to axis, and rotating ring or stationary ring encircle by way of compensation under the effect of axial elasticity element and make, stationary ring keeps fitting sliding and is rotatably assorted, rotating ring is connected with pump shaft or axle sleeve, stationary ring is connected with machine sealed cover on the pump cover, it is characterized in that: between the axis hole (51) of pump cover (5 ') and pump shaft (3), be provided with labyrinth seal cover (6), labyrinth seal cover (6) is fixedly mounted on the pump shaft (3), on the first half of the outer ring surface of this labyrinth seal cover (6), offer thread groove (61), the axis hole (51) of the outer ring surface of labyrinth seal cover (6) and pump cover slides and is rotatably assorted, thread groove (61) on the labyrinth seal cover (6) forms volute pump with pump cover (5 ') axis hole (51), the media particle that will enter in labyrinth seal cover (6) thread groove (61) is carried back the front end of labyrinth seal cover (6), and the particle in the medium can not be passed through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200130599U CN201434079Y (en) | 2009-04-17 | 2009-04-17 | Labyrinth combined type mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200130599U CN201434079Y (en) | 2009-04-17 | 2009-04-17 | Labyrinth combined type mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201434079Y true CN201434079Y (en) | 2010-03-31 |
Family
ID=42052887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200130599U Expired - Fee Related CN201434079Y (en) | 2009-04-17 | 2009-04-17 | Labyrinth combined type mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201434079Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644586A (en) * | 2012-04-28 | 2012-08-22 | 大连华阳光大密封有限公司 | Mechanical sealing material blocking device |
| CN103233920B (en) * | 2013-04-13 | 2015-09-02 | 丹东克隆集团有限责任公司 | The cooling body of mechanical sealing device used for pump |
| CN108506214A (en) * | 2018-06-04 | 2018-09-07 | 西安交通大学 | A kind of shaft seal structure of helical-lobe compressor |
| CN110332312A (en) * | 2019-07-06 | 2019-10-15 | 南通范氏机械有限公司 | Axial combination sealing mechanism |
-
2009
- 2009-04-17 CN CN2009200130599U patent/CN201434079Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644586A (en) * | 2012-04-28 | 2012-08-22 | 大连华阳光大密封有限公司 | Mechanical sealing material blocking device |
| CN103233920B (en) * | 2013-04-13 | 2015-09-02 | 丹东克隆集团有限责任公司 | The cooling body of mechanical sealing device used for pump |
| CN108506214A (en) * | 2018-06-04 | 2018-09-07 | 西安交通大学 | A kind of shaft seal structure of helical-lobe compressor |
| CN110332312A (en) * | 2019-07-06 | 2019-10-15 | 南通范氏机械有限公司 | Axial combination sealing mechanism |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20180417 |