CN201679760U - Water pump shaft sleeve sealing device - Google Patents
Water pump shaft sleeve sealing device Download PDFInfo
- Publication number
- CN201679760U CN201679760U CN2010201486071U CN201020148607U CN201679760U CN 201679760 U CN201679760 U CN 201679760U CN 2010201486071 U CN2010201486071 U CN 2010201486071U CN 201020148607 U CN201020148607 U CN 201020148607U CN 201679760 U CN201679760 U CN 201679760U
- Authority
- CN
- China
- Prior art keywords
- pump shaft
- axle sleeve
- gland
- face
- cylindrical drum
- 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 Devices (AREA)
Abstract
The utility model discloses a water pump shaft sleeve sealing device, which comprises a shaft sleeve sleeved on a pump shaft. The outer end surface of the shaft sleeve is connected with a packing gland via a bolt, the packing gland consists of two gland bodies which are respectively in the shape of a semicircular ring, the inner side surface of each gland body is provided with a half cylindrical barrel extending towards the shaft sleeve, the two half cylindrical barrels are in clearance fit and held on the pump shaft, the cross section of the packing gland is T-shaped, the outer side end of the pump shaft extends out of the cylindrical barrel of the packing gland, and a packing sealing structure is sleeved on the pump shaft between the packing gland and the shaft sleeve. The water pump shaft sleeve sealing device is simple in structure, fine in sealing effect and convenient in disassembling, assembling and maintenance.
Description
Technical field
The utility model belongs to the improvement of Pump Axle place sealing configuration, particularly water pump axle sleeve seal arrangement.
Background technique
The service pump class of steam turbine such as water-jet pump, pump condenses, leakproofness to the axle envelope requires very high, the bad problem of axle envelope leakproofness, often occur, cause the great fluctuation process of crossing of device parameters such as steam turbine vacuum degree, water of condensation pressure, flow easily, and the great fluctuation process excessively of these parameters can cause that frequent interlocking starts the phenomenon of stand by pump, influences the stability of the flow and the pressure of process pump, and then the steady working condition of steam turbine set has been constituted bigger influence.
Domestic water pump industry is equipped with the wearing and tearing that removable axle sleeve is protected pump shaft usually on pump shaft, axle sleeve adopts the key joint gap to cooperate with axle, and its gap width scope is 0.5-1mm, seals with " O " RunddichtringO.The mode that adopts the key joint gap to cooperate makes that axle sleeve can't be located fully, there is deviation in coaxality, cause " O " RunddichtringO premature fatigue to lose efficacy, by axle sleeve and between centers crack, make the inside and outside passage that forms of pump, and then worsen into the cavitation erosion (during the mouth piece negative pressure) of pump and leak (during the mouth piece malleation), influence the safe and stable operation of pump.
The model utility content
The purpose of this utility model is to provide a kind of water pump axle sleeve seal arrangement, and it is simple in structure, is easy to dismounting and safeguards, can effectively improve the sealing effect at Pump Axle place, guarantees the safe and stable operation of water pump.
The purpose of this utility model is achieved in that a kind of water pump axle sleeve seal arrangement, comprise the axle sleeve that is sleeved on the pump shaft, on the axle sleeve exterior edge face, connecting Gland by bolt, Gland is made up of two lids that are semi-round ring shape respectively, all has a semicircle column casing to the axle sleeve extension on the inner side surface of each lid, two semicircle column casings are Spielpassung and fill the span of a man's arms on pump shaft, the cross section of Gland is T-shaped, the pump shaft outboard end stretches out from the cylindrical drum of Gland, and suit is being provided with packing seal structure on the pump shaft between Gland and the axle sleeve.
Gland of the present utility model has adopted the structure of center subdivision opposite opened, can adjust the work such as replacing of the amount of deformation and the filler of filler under the situation of pump not being disintegrated like this, thereby has eliminated the defective that Gland is made integrity.Compare with traditional water pump packing structure, it is good to the utlity model has sealing effect, easy installation and removal, and characteristics such as novelty simple in structure have improved the sealing effect between axle sleeve and the pump shaft effectively, thereby can guarantee the safe and stable operation of steam turbine unit.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 looks cross-sectional view for the utility model embodiment 1 master;
Fig. 2 is the I portion structure for amplifying schematic representation among the utility model Fig. 1;
Fig. 3 looks cross-sectional view for the utility model embodiment 2 master;
Fig. 4 is the I portion structure for amplifying schematic representation among the utility model Fig. 3.
Embodiment
A kind of water pump axle sleeve seal arrangement as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, comprises the axle sleeve 1 that is sleeved on the pump shaft, is connecting Gland 3 by bolt 4 on axle sleeve 1 exterior edge face, and bolt 4 is a hexagon socket head cap screw.Gland 3 is made up of two lids that are semi-round ring shape respectively, easy disassembly like this.All has a semicircle column casing to axle sleeve 1 extension on the inner side surface of each lid, two semicircle column casings are Spielpassung and fill the span of a man's arms on pump shaft, the cross section of Gland 3 is T-shaped, the pump shaft outboard end stretches out from the cylindrical drum of Gland 3, and suit is being provided with packing seal structure 2 on the pump shaft between Gland 3 and the axle sleeve 1.
As shown in Figure 2, said packing seal structure 2 is for being provided with the ring shoulder block near on the axle sleeve inner circle wall of Gland 3, said cylindrical drum stretches in the annular space that constitutes between axle sleeve and the pump shaft, and suit is being provided with rectangular seal on the pump shaft between cylindrical drum end face and the ring shoulder block.During use, 4 Gland 3 is moved towards axle sleeve 1, rectangular seal tightly is squeezed in the said annular space, and form good sealing between the pump shaft by tighting a bolt.
As shown in Figure 4, said packing seal structure 2 is for being provided with seal ring between axle sleeve exterior edge face and cylindrical drum end face, ring set is on pump shaft, and cylindrical drum end face indent is coned face, is coned face with the contacted seal ring of cylindrical drum end face exterior edge face evagination.The utility model embodiment 2 used seal rings have changed conventional section configuration, made trapezoidal cross-section, thereby made seal ring ladder angle under the extruding of Gland 3, formed the angle of wedge and be filled in the cylindrical drum end face, by resiliently deformable, really can play the effect of sealing.
Claims (3)
1. water pump axle sleeve seal arrangement, comprise the axle sleeve that is sleeved on the pump shaft, it is characterized in that: on the axle sleeve exterior edge face, connecting Gland by bolt, Gland is made up of two lids that are semi-round ring shape respectively, all has a semicircle column casing to the axle sleeve extension on the inner side surface of each lid, two semicircle column casings are Spielpassung and fill the span of a man's arms on pump shaft, the cross section of Gland is T-shaped, the pump shaft outboard end stretches out from the cylindrical drum of Gland, and suit is being provided with packing seal structure on the pump shaft between Gland and the axle sleeve.
2. water pump axle sleeve seal arrangement according to claim 1, it is characterized in that: said packing seal structure is for being provided with the ring shoulder block near on the axle sleeve inner circle wall of Gland, said cylindrical drum stretches in the annular space that constitutes between axle sleeve and the pump shaft, and suit is being provided with rectangular seal on the pump shaft between cylindrical drum end face and the ring shoulder block.
3. water pump axle sleeve seal arrangement according to claim 1, it is characterized in that: said packing seal structure is for being provided with seal ring between axle sleeve exterior edge face and cylindrical drum end face, ring set is on pump shaft, cylindrical drum end face indent is coned face, is coned face with the contacted seal ring of cylindrical drum end face exterior edge face evagination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201486071U CN201679760U (en) | 2010-04-02 | 2010-04-02 | Water pump shaft sleeve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201486071U CN201679760U (en) | 2010-04-02 | 2010-04-02 | Water pump shaft sleeve sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201679760U true CN201679760U (en) | 2010-12-22 |
Family
ID=43344804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201486071U Expired - Fee Related CN201679760U (en) | 2010-04-02 | 2010-04-02 | Water pump shaft sleeve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201679760U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953986A (en) * | 2012-11-22 | 2013-03-06 | 无锡惠山泵业有限公司 | Oil pump |
| CN103557177A (en) * | 2013-11-12 | 2014-02-05 | 成都科盛石油科技有限公司 | Low-specific speed centrifugal pump |
-
2010
- 2010-04-02 CN CN2010201486071U patent/CN201679760U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953986A (en) * | 2012-11-22 | 2013-03-06 | 无锡惠山泵业有限公司 | Oil pump |
| CN103557177A (en) * | 2013-11-12 | 2014-02-05 | 成都科盛石油科技有限公司 | Low-specific speed centrifugal 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: 20101222 Termination date: 20120402 |