CN200940596Y - Seal device for pump shaft - Google Patents
Seal device for pump shaft Download PDFInfo
- Publication number
- CN200940596Y CN200940596Y CN 200620052037 CN200620052037U CN200940596Y CN 200940596 Y CN200940596 Y CN 200940596Y CN 200620052037 CN200620052037 CN 200620052037 CN 200620052037 U CN200620052037 U CN 200620052037U CN 200940596 Y CN200940596 Y CN 200940596Y
- Authority
- CN
- China
- Prior art keywords
- seal
- seal ring
- pump
- movable
- ring
- 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
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a ceramic pump shaft seal device, consisting of a pump shaft, a shaft sleeve, a locating pin, a locating block, and a seal cover. The shaft sleeve is provided with a fixed seal ring and seal cover, the front end of the fixed seal ring is provided with a movable seal ring, and the seal cover is provided with the locating block with locating pin. The external diameter of the movable seal ring is arranged with a ring groove in which is provided with an O-shaped cycle, a locating hole is arranged on the position where the movable seal ring corresponds to the locating pin, and the movable seal ring moves along the shaft under the pressure of the pump itself. The seal force changes the former radial direction into axial direction, and the movable seal ring can adjust seal clearance automatically. The shaft sleeve can be prevented from being damaged without need of oil seal, and the service life of the shaft sleeve is long. The effect of seal is good, and the structure is novel and simple. The device is not only suitable for ceramic pump, but also suitable for the seal of vacuum pump of flange type and water cycle type.
Description
Technical field
The utility model relates to a kind of seal arrangement, specifically relates to a kind of ceramicpump shaft seal.
Background technique
For preventing the leakage between the ceramic pump housing and the pump shaft, adopt the radial seal of axle sleeve, oil sealing or filler mostly, and other mechanical seals.Though the seal arrangement of this structure can reach sealing effect, axle sleeve and oil sealing are because of radially rotating and rubbing, and sealing effect is poor, has reduced the working efficiency of pump, and the axle sleeve of seal arrangement and oil sealing are also short working life, change frequently, cause the waste of human and material resources.
Summary of the invention
The purpose of this utility model is the seal arrangement that provides a kind of cost low, effective to be used to overcome above-mentioned existing shortcoming.
The utility model is to realize above-mentioned purpose like this:
The technical solution of the utility model is made up of pump shaft, axle sleeve, locating stud, positioning block and seal closure, it mainly is that described axle sleeve is provided with fixed seal ring, front end at fixed seal ring is provided with a movable sealing circle, and seal closure is provided with the positioning block of band locating stud; Have an annular groove on the external diameter of said movable sealing circle, groove is built-in with " O " type circle, also is provided with positioning hole on the corresponding alignment pin position of movable sealing circle.
For further realizing above purpose, the fixed seal ring of jack panel with lock can be according to the turn up and down of axle sleeve rib-loop, to adjust seal space; The movable sealing circle moves at pump self pressure lower edge axle.
Advantage of the present utility model is: seal action power is by original radially changing into axially, and the movable sealing circle can be adjusted seal clearance automatically.To the axle sleeve not damaged, do not need oil sealing, axle sleeve long service life, good sealing effect, novel structure, simple.Be not only applicable to ceramicpump, the sealing that also is adapted to flange-type seal closure pump class and repacks the water circulating type vacuum pump into.
Description of drawings
Fig. 1 is the utility model structural representation.
1 axle sleeve among the figure, 2 locating studs, 3 positioning blocks, 4 positioning block set screws, 5 " O " type circle, 6 movable sealing circles, 7 fixed seal rings, 8 lock nuts, 9 seal closures, 10 closing caps, 11 pump shafts.
Embodiment
As seen from Figure 1, with lock nut 8 seal ring 7 that is locked, fixed seal ring 7 can be according to the turn up and down of axle sleeve 1 rib-loop, to adjust seal space on the pump shaft 11 of the present utility model; Front end at fixed seal ring 7 is provided with movable sealing circle 6, uses the positioning block 3 of set screw 4 idiozona locating studs 2 on the seal closure 9.Have a circular groove on the external diameter of movable sealing circle 6, be embedded with " O " type circle 5 at its groove, also be provided with positioning hole on movable sealing circle 6 corresponding locating studs 2 positions, locating stud 2 cooperates with its positioning hole when movable sealing circle 6 moves to certain position.Movable sealing circle 6 moves axially in the effect lower edge of pump self pressure and fits tightly with fixed seal ring 7, to reach the effect of sealing." O " type circle 5 fits tightly with seal closure 9, in order to prevent leak of liquid and to fall low-noise.When movable sealing circle 6, during fixed seal ring 7 wearing and tearing, movable sealing circle 6 is fitted under pressure automatically.In order to lubricate better and the coolant seal device, the utility model does not also have tank filler sleeve at the top of seal closure 9.
Claims (3)
1, a kind of seal arrangement of pump shaft, by pump shaft (11), axle sleeve (1), locating stud (2), positioning block (3) and seal closure (9) are formed, and it is characterized in that: described axle sleeve (1) is provided with fixed seal ring (7), are provided with movable sealing circle (6) at the front end of fixed seal ring (7).
2, according to the described seal arrangement of claim 1, it is characterized in that: have an annular groove on the external diameter of described movable sealing circle (6), groove is built-in with " O " type circle (5).
3, according to the described seal arrangement of claim 1, it is characterized in that: the fixed seal ring (7) of jack panel with lock (8) can be adjusted seal space along axle sleeve (1) turn up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620052037 CN200940596Y (en) | 2006-08-25 | 2006-08-25 | Seal device for pump shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620052037 CN200940596Y (en) | 2006-08-25 | 2006-08-25 | Seal device for pump shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200940596Y true CN200940596Y (en) | 2007-08-29 |
Family
ID=38746773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620052037 Expired - Fee Related CN200940596Y (en) | 2006-08-25 | 2006-08-25 | Seal device for pump shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200940596Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606520A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Mechanical seal for starting water feeding pump |
-
2006
- 2006-08-25 CN CN 200620052037 patent/CN200940596Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606520A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Mechanical seal for starting water feeding pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070829 |