CN202756288U - Integral type mechanical seal used for slurry pump decompressing cover and pump shaft - Google Patents
Integral type mechanical seal used for slurry pump decompressing cover and pump shaft Download PDFInfo
- Publication number
- CN202756288U CN202756288U CN 201220451618 CN201220451618U CN202756288U CN 202756288 U CN202756288 U CN 202756288U CN 201220451618 CN201220451618 CN 201220451618 CN 201220451618 U CN201220451618 U CN 201220451618U CN 202756288 U CN202756288 U CN 202756288U
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- end plate
- inner end
- outer end
- mechanical seal
- integral type
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- Expired - Fee Related
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses an integral type mechanical seal used for a slurry pump decompressing cover and a pump shaft. The integral type mechanical seal comprises an inner end plate and an outer end plate. A sealing cavity is jointly formed by a drum body, the inner end plate and the outer end plate. A water inlet hole and a water outlet hole are arranged in the drum body. The sealing cavity is provided with a sealing mechanism. The sealing mechanism comprises static rings and a moving ring. The static rings are located in circular grooves of the inner end plate and the outer end plate. The moving ring is located between the two static rings. The moving ring is provided with a cavity, a spring is arranged in the cavity, and the static rings are matched with the inner end plate or the outer end plate in an interference mode. The spring is corrugation-shaped. According to the integral type mechanical seal used for the slurry pump decompressing cover and the pump shaft, positioning is achieved by the circular groove interference matching between the static rings and the inner end plate or the outer end plate. The integral type mechanical seal is convenient and quick to fix position. The corrugation-shaped spring is adopted below the moving ring. The integral type mechanical seal is not prone to be worn and service life is greatly prolonged.
Description
Technical field
The utility model relates to the slag stock pump, especially the sealing of slag stock pump decompression lid and pump shaft.
Background technique
The slag stock pump is a kind of centrifugal pump, and the slag stock pump comprises carriage, pump shaft and impeller, and the end of carriage is provided with the decompression lid, and decompression is covered the side and is provided with mechanical seal.End face seal is named again in mechanical seal, is to be kept fitting under the cooperation of the effect of hydrodynamic pressure and compensation mechanism elastic force (or magnetic force) and auxiliary seal perpendicular to the end face of spin axis and relative sliding and the device that prevents fluid leakage that consists of by at least one pair of.The mechanical seal of known slag stock pump as shown in Figure 1, it comprises at two ends height different annular inner end plate and annular outer end plate and the sealing mechanism 1 between two end plates, sealing mechanism comprises that two ends lay respectively at stationary ring in inner end plate and the outer end plate annular groove and the rotating ring between two stationary rings, be provided with cavity about rotating ring, be provided with spring in the cavity, it is to be fixed by bolts to decompression by inner end plate to cover on 2, and two stationary rings are fixed by little locating stud, and the location is inconvenient; Rotating ring comes the centering location by screw in the middle of two stationary rings.What adopted mechanical seal inside is little spring, and when being applied in the slurry, along with the running of equipment, the part medium enters the little spring place, and little spring easily is worn, and loses its use value, causes mechanical seal to be lost efficacy.
The model utility content
It is inconvenient that the purpose of this utility model solves slag stock pump mechanical sealing static ring location exactly, and easy to wear because of the little spring of rotating ring below, causes the problem of mechanical seal inefficacy.
The technical solution adopted in the utility model is: a kind of for the Integral mechanical sealing of slag stock pump decompression lid with pump shaft, in the middle of comprising, it is provided with annular inner end plate and the annular outer end plate of through hole, be connected with circular cylinder between inner end plate and the outer end plate, cylindrical shell and inner end plate and outer end plate consist of Seal cage jointly, water inlet and osculum are arranged on the cylindrical shell, sealing mechanism is arranged in the Seal cage, sealing mechanism comprises that two ends lay respectively at stationary ring in inner end plate and the outer end plate annular groove and the rotating ring between two stationary rings, rotating ring has cavity, be provided with spring in the cavity, it is characterized in that described stationary ring and cooperating of inner end plate or outer end plate are interference fit, so that stationary ring is squeezed in the annular groove of inner end plate or outer end plate.
Spring in the described rotating ring cavity is the ripple spring.
The utility model beneficial effect is: realize the location because the utility model stationary ring and inner end plate or outer end plate are the annular groove interference fit, the location fast and easy; Ripple Min spring is adopted in the rotating ring below, and is not easy to wear, greatly increased working life; Simultaneously, substantially not frayed with axle or the axle sleeve of mechanical seal close contact; Service cycle is long, but auto-compensation behind the end wear, generally speaking, and maintenance that need not be regular, resistance to shock is good, to the vibration of running shaft, beat and the deflection in mechanical seal chamber is insensitive relatively.
Description of drawings
Fig. 1 is the known technology schematic diagram.
Fig. 2 is the utility model schematic diagram.
Embodiment
Below in conjunction with description of drawings the utility model is further described.
As shown in Figure 2, a kind of for the Integral mechanical sealing of slag stock pump decompression lid with pump shaft, in the middle of comprising, it is provided with annular inner end plate 4 and the annular outer end plate 6 of through hole, and inner end plate 4 has extension, extension is provided with screw, is provided with bolt in the screw and covers 2 and be connected with decompression.Be connected with circular cylinder 5 between inner end plate 4 and the outer end plate 6, cylindrical shell 5 and inner end plate 4 and outer end plate 6 common formation Seal cages, the present embodiment cylindrical shell 5 is connected as a single entity with inner end plate 4.Water inlet and osculum are arranged on the cylindrical shell 5, passing into water in the water inlet during use cools off, sealing mechanism is arranged in the Seal cage, sealing mechanism comprises that two ends lay respectively at the rotating ring 7 that the stationary ring 9 in inner end plate 4 and outer end plate 6 annular grooves reaches between two stationary rings, stationary ring 9 is that two parts form, two-part are connected as a single entity, and rotating ring 7 also is that two parts form.Rotating ring 7 has cavity, is provided with spring 8 in the cavity, and stationary ring 9 is interference fit with cooperating of inner end plate 4 or outer end plate 6, so that stationary ring 9 is squeezed in the annular groove of inner end plate 4 or outer end plate 6.Spring 8 in the rotating ring cavity is the ripple spring.
Claims (2)
1. Integral mechanical sealing that is used for slag stock pump decompression lid and pump shaft, it comprises annular inner end plate (4) and the annular outer end plate (6) that is provided with through hole, be connected with circular cylinder (5) between inner end plate (4) and the outer end plate (6), cylindrical shell (5) consists of Seal cage jointly with inner end plate (4) and outer end plate (6), cylindrical shell has water inlet and osculum on (5), sealing mechanism is arranged in the Seal cage, sealing mechanism comprises that two ends lay respectively at stationary ring (9) in inner end plate (4) and outer end plate (6) annular groove and the rotating ring (7) between two stationary rings, rotating ring (7) has cavity, be provided with spring (8) in the cavity, it is characterized in that described stationary ring (9) and cooperating of inner end plate (4) or outer end plate (6) are interference fit, so that stationary ring (9) is squeezed in the annular groove of inner end plate (4) or outer end plate (6).
2. according to claim 1 a kind of for the Integral mechanical sealing of slag stock pump decompression lid with pump shaft, it is characterized in that the spring (8) in the described rotating ring cavity is the ripple spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220451618 CN202756288U (en) | 2012-09-06 | 2012-09-06 | Integral type mechanical seal used for slurry pump decompressing cover and pump shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220451618 CN202756288U (en) | 2012-09-06 | 2012-09-06 | Integral type mechanical seal used for slurry pump decompressing cover and pump shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756288U true CN202756288U (en) | 2013-02-27 |
Family
ID=47735473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220451618 Expired - Fee Related CN202756288U (en) | 2012-09-06 | 2012-09-06 | Integral type mechanical seal used for slurry pump decompressing cover and pump shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756288U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828990A (en) * | 2012-09-06 | 2012-12-19 | 安徽迈宁工业泵有限公司 | Integrated mechanical seal for pressure-reducing cover and pump shaft of residue slurry pump |
| CN109185222A (en) * | 2018-09-13 | 2019-01-11 | 宜兴市宙斯泵业有限公司 | A kind of centrifugal pump impeller |
-
2012
- 2012-09-06 CN CN 201220451618 patent/CN202756288U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828990A (en) * | 2012-09-06 | 2012-12-19 | 安徽迈宁工业泵有限公司 | Integrated mechanical seal for pressure-reducing cover and pump shaft of residue slurry pump |
| CN109185222A (en) * | 2018-09-13 | 2019-01-11 | 宜兴市宙斯泵业有限公司 | A kind of centrifugal pump impeller |
| CN109185222B (en) * | 2018-09-13 | 2024-05-10 | 宜兴市宙斯泵业有限公司 | Impeller of centrifugal pump |
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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 |
Granted publication date: 20130227 Termination date: 20170906 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |