CN204140480U - Pump packing seal unit - Google Patents
Pump packing seal unit Download PDFInfo
- Publication number
- CN204140480U CN204140480U CN201420585836.8U CN201420585836U CN204140480U CN 204140480 U CN204140480 U CN 204140480U CN 201420585836 U CN201420585836 U CN 201420585836U CN 204140480 U CN204140480 U CN 204140480U
- Authority
- CN
- China
- Prior art keywords
- filler
- stuffing box
- pump
- box packing
- packing
- 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
Abstract
A kind of pump packing seal unit, comprise and be set in the transmission shaft on pump impeller or the seal cage on axle sleeve and stuffing box packing body, seal cage is between two stuffing box packing bodies, be provided with at least a slice in stuffing box packing body and be set in the transmission shaft on impeller or the filler bluff piece on axle sleeve, stuffing box packing body interior separation is become multiple independently gasket material chamber by filler bluff piece.The pump packing seal unit that the utility model provides, can solve the problem that filler easily loses sealability, extend the working life of pump packing seal unit, decreases the number of times changing sealing material, adds the effective time of pump.
Description
Technical field
The utility model relates to a kind of seal arrangement, especially a kind of packing seal unit in pump impeller rotating shaft.
Background technique
Chinese Patent Application No. be 201110323875.1 application for a patent for invention disclose a kind of packing sealing device for centrifugal pump, relate to centrifugal pump, pump shaft is provided with axle sleeve, axle sleeve is provided with packing seal body, it is protruding that packing seal body medial extremity is provided with annular backgauge, axle sleeve comprises internal axle sleeve and external axle sleeve, what external axle sleeve inner end was relative with the annular backgauge projection of packing seal body medial extremity is provided with baffle ring, external axle sleeve is threaded with pump shaft, lock screw is provided with between external axle sleeve outboard end and pump shaft, packing seal body and outside axle sleeve surround the packing cavity of outer openings, packing ring is provided with in packing cavity, packing ring both sides are provided with filler, inner side filler and annular backgauge projection, packing bushing is provided with between baffle ring, the port of packing cavity is provided with Gland, Gland is connected with packing seal body through bolt.The dismounting when benefit of this patent application is maintenance is more convenient; but filler unit used, is mainly provided with packing ring in packing cavity, and packing ring both sides are provided with filler; all still, old-fashioned combination; wherein between the filler of packing ring both sides and filler without any protection, filler and filler are directly bonded together, in the space of a sealing; the sealing surface of filler is longer; once there is local filler to pull, namely can Quick Extended, filler easily loses sealability.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of pump packing seal unit, the problem that filler easily loses sealability can be solved, extend the working life of pump packing seal unit, decrease the number of times changing sealing material, add the effective time of pump.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of pump packing seal unit, comprise and be set in the transmission shaft on pump impeller or the seal cage on axle sleeve and stuffing box packing body, seal cage is between two stuffing box packing bodies, be provided with at least a slice in stuffing box packing body and be set in the transmission shaft on impeller or the filler bluff piece on axle sleeve, stuffing box packing body interior separation is become multiple independently gasket material chamber by filler bluff piece.
Filler bluff piece is metal bluff piece.
Design principle of the present utility model is as follows:
Work as seal cage; stuffing box packing body; when the filled gland of filler bluff piece compresses; stuffing box packing body is under filler bluff piece evenly and fully extrudes; stuffing box packing body can only to the outer direction with internal diameter direction slippage, thus more effective raising sealing effect, when the frictional force that stuffing box packing body is rotated; certain maintenance effect is played in the maintenance of filler bluff piece to the position of stuffing box packing body, and protection stuffing box packing body is not pulled.Because stuffing box packing body internal cavities is separated into multiple independently gasket material chamber by filler bluff piece; after the stuffing box packing in a gasket material chamber damages; protection due to filler bluff piece directly can not have influence on the stuffing box packing in adjacent gasket material chamber, and seal action still can be played effectively in adjacent gasket material chamber.
The pump packing seal unit that the utility model provides, matched by seal cage, gasket material body and filler bluff piece, the problem that filler easily loses sealability can be solved, extend the working life of pump packing seal unit, decrease the number of times changing sealing material, add the effective time of pump.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the utility model structural representation.
Embodiment
As in Fig. 1, a kind of pump packing seal unit, comprise and be set in the transmission shaft on pump impeller 1 or the seal cage 3 on axle sleeve 2 and stuffing box packing body 4, seal cage 3 is between two stuffing box packing bodies 4, be provided with at least a slice in stuffing box packing body 4 and be set in the transmission shaft on impeller 1 or the filler bluff piece 5 on axle sleeve 2, stuffing box packing body 4 interior separation is become multiple independently gasket material chamber by filler bluff piece 5.
Filler bluff piece 5 is metal bluff piece.
Working procedure of the present utility model is as follows:
When seal cage 3; stuffing box packing body 4; when the filled gland of filler bluff piece 5 compresses; stuffing box packing body 4 is under filler bluff piece 5 evenly and fully extrudes; stuffing box packing body 4 can only to the outer direction with internal diameter direction slippage, thus more effective raising sealing effect, when the frictional force that stuffing box packing body 4 is rotated; certain maintenance effect is played in the maintenance of the position of filler bluff piece 5 pairs of stuffing box packing bodies 4, and protection stuffing box packing body 4 is not pulled.Because stuffing box packing body 4 internal cavities is separated into multiple independently gasket material chamber by filler bluff piece 5; after the stuffing box packing in a gasket material chamber damages; protection due to filler bluff piece 5 directly can not have influence on the stuffing box packing in adjacent gasket material chamber, and seal action still can be played effectively in adjacent gasket material chamber.
Matched by seal cage 3, gasket material body 4 and filler bluff piece 5, the problem that filler easily loses sealability can be solved, extend the working life of pump packing seal unit, decrease the number of times changing sealing material, add the effective time of pump.
Claims (2)
1. a pump packing seal unit, it is characterized in that: comprise and be set in the transmission shaft on pump impeller (1) or the seal cage (3) on axle sleeve (2) and stuffing box packing body (4), seal cage (3) is positioned between two stuffing box packing bodies (4), be provided with at least a slice in stuffing box packing body (4) and be set in the transmission shaft on impeller (1) or the filler bluff piece (5) on axle sleeve (2), stuffing box packing body (4) interior separation is become multiple independently gasket material chamber by filler bluff piece (5).
2. pump packing seal unit according to claim 1, is characterized in that: filler bluff piece (5) is metal bluff piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585836.8U CN204140480U (en) | 2014-10-11 | 2014-10-11 | Pump packing seal unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420585836.8U CN204140480U (en) | 2014-10-11 | 2014-10-11 | Pump packing seal unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140480U true CN204140480U (en) | 2015-02-04 |
Family
ID=52417169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420585836.8U Expired - Fee Related CN204140480U (en) | 2014-10-11 | 2014-10-11 | Pump packing seal unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140480U (en) |
-
2014
- 2014-10-11 CN CN201420585836.8U patent/CN204140480U/en not_active Expired - Fee Related
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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: 20150204 Termination date: 20201011 |