CN201176953Y - Centrifugal pump helix seal axle sleeve - Google Patents
Centrifugal pump helix seal axle sleeve Download PDFInfo
- Publication number
- CN201176953Y CN201176953Y CNU2008200191297U CN200820019129U CN201176953Y CN 201176953 Y CN201176953 Y CN 201176953Y CN U2008200191297 U CNU2008200191297 U CN U2008200191297U CN 200820019129 U CN200820019129 U CN 200820019129U CN 201176953 Y CN201176953 Y CN 201176953Y
- Authority
- CN
- China
- Prior art keywords
- centrifugal pump
- axle sleeve
- seal axle
- sleeve body
- screw piece
- 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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Abstract
The utility model discloses a spiral sealing shaft sleeve of a centrifugal pump, comprising a shaft sleeve body. The outer surface of the shaft sleeve body is provided with a raised spiral slice; one end part of the shaft sleeve body is provided with a raised baffling sleeve, and the other end is provided with a keyway. The spiral sealing shaft sleeve of the centrifugal pump has the characteristics of good sealing effect, long service life and raw material saving and so on, and can be widely used on centrifugal pump or the like.
Description
One, technical field
The utility model relates to the centrifugal pump axle sleeve, particularly a kind of centrifugal pump spiral seal axle sleeve.
Two, background technique
Traditional centrifugal pump axle sleeve sealing, the general packing that adopts materials such as graphite, butter, polyethylene to make needs the 6-8 root, tightly on axle sleeve, be equipped with parts such as seal cage, interstage sleeve again in the hope of sealing, but above-mentioned sealing means also exists seal cage, filler, interstage sleeve and axle sleeve simultaneously and damages owing to the high speed rotating of pump, cause change frequent, the maintenance engineering amount is big, high material consumption, time-consuming, operation labor intensity height, sealing effect is poor, influences shortcoming or deficiencies such as pump normal operation sometimes.
Three, summary of the invention
The purpose of this utility model provides a kind of centrifugal pump spiral seal axle sleeve, employing is provided with the shape of threads projection consistent with the centrifugal pump sense of rotation and inserts the static-dynamic attitude sealing means of a small amount of packing on the axle sleeve surface, the shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art, the sealing effect of raising pump.
Centrifugal pump spiral seal axle sleeve described in the utility model comprises sleeve body, and the outer surface of described sleeve body is equiped with the screw piece of projection, and an end of sleeve body is installed on the shelves cover of projection, and the other end is provided with keyway.
Wherein, described screw piece is to be distributed in sleeve outer surface indentingly.The true dip direction of described screw piece is consistent with the sense of rotation of centrifugal pump.The tilt angle of described screw piece and axis is 30 °-60 °.
The utility model has following advantage and beneficial effect compared with prior art:
1, the filler packing is few, only inserts the 1-2 root and can reach static-dynamic preferably sealability.
2, reduce leakage rate and the intake of air and the level of cavitation of pump of pump.
3, installation, maintenance is convenient, simple to operate, workload is little, labor intensity is little.
4, pump efficiency height can increase pump efficiency 2%-5% according to statistics.
Four, description of drawings
Fig. 1 is a kind of structural representation of the present utility model,
Fig. 2 is for pressing structure schematic side view shown in Figure 1.
Five, embodiment
Consult Fig. 1-Fig. 2, a kind of centrifugal pump spiral seal axle sleeve comprises sleeve body 3, and the outer surface of sleeve body 3 is equiped with the screw piece 2 of projection, and an end of sleeve body 3 is installed on the shelves cover 1 of projection, and the other end is provided with keyway 4.
Claims (4)
1, a kind of centrifugal pump spiral seal axle sleeve comprises sleeve body, it is characterized in that the outer surface of described sleeve body is equiped with the screw piece of projection, and an end of sleeve body is installed on the shelves cover of projection, and the other end is provided with keyway.
2, centrifugal pump spiral seal axle sleeve according to claim 1 is characterized in that described screw piece is to be distributed in sleeve outer surface indentingly.
3, centrifugal pump spiral seal axle sleeve according to claim 1 and 2 is characterized in that the true dip direction of described screw piece is consistent with the sense of rotation of centrifugal pump.
4, centrifugal pump spiral seal axle sleeve according to claim 1 and 2, the tilt angle that it is characterized in that described screw piece and axis are 30 °-60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200191297U CN201176953Y (en) | 2008-03-16 | 2008-03-16 | Centrifugal pump helix seal axle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200191297U CN201176953Y (en) | 2008-03-16 | 2008-03-16 | Centrifugal pump helix seal axle sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201176953Y true CN201176953Y (en) | 2009-01-07 |
Family
ID=40216972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200191297U Expired - Fee Related CN201176953Y (en) | 2008-03-16 | 2008-03-16 | Centrifugal pump helix seal axle sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201176953Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278480A (en) * | 2011-06-16 | 2011-12-14 | 张家港市兰航机械有限公司 | Sealing structure of shaft sleeve and mounting seat |
| CN109281872A (en) * | 2018-09-28 | 2019-01-29 | 安徽环科泵阀有限公司 | A kind of mechanical face seals of centrifugal pumps flusher and its manufacturing process |
-
2008
- 2008-03-16 CN CNU2008200191297U patent/CN201176953Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278480A (en) * | 2011-06-16 | 2011-12-14 | 张家港市兰航机械有限公司 | Sealing structure of shaft sleeve and mounting seat |
| CN109281872A (en) * | 2018-09-28 | 2019-01-29 | 安徽环科泵阀有限公司 | A kind of mechanical face seals of centrifugal pumps flusher and its manufacturing process |
| CN109281872B (en) * | 2018-09-28 | 2020-04-14 | 安徽环科泵阀有限公司 | Mechanical seal flushing device of centrifugal pump and manufacturing process thereof |
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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: 20090107 |