CN201301828Y - Gravel pump capable of adjusting axial sealing clearance of sealing ring - Google Patents
Gravel pump capable of adjusting axial sealing clearance of sealing ring Download PDFInfo
- Publication number
- CN201301828Y CN201301828Y CNU2008201477179U CN200820147717U CN201301828Y CN 201301828 Y CN201301828 Y CN 201301828Y CN U2008201477179 U CNU2008201477179 U CN U2008201477179U CN 200820147717 U CN200820147717 U CN 200820147717U CN 201301828 Y CN201301828 Y CN 201301828Y
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- sealing
- impeller
- fixed
- bearing support
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 241001661355 Synapsis Species 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a gravel pump capable of adjusting axial sealing clearance of a sealing ring, which aims to overcome the defects of poor sealing effect and low production efficiency in the use of the prior gravel pump. The gravel pump capable of adjusting axial sealing clearance of the sealing ring comprises a pump casing, a rear cover plate, a bearing support connected with the rear cover plate and the pump casing, a rotating shaft mounted in the bearing support, a driving wheel fixed at the outer end of the rotating shaft and an impeller fixed at the inner end of the rotating shaft; the gravel pump is characterized in that an adjusting sleeve is fixed at the contact part of the rear cover plate and the bearing support, and a sealing oil seal is mounted between the adjusting sleeve and the rotating shaft; a key slot is formed at an impeller head of the impeller, and the sealing ring is mounted outside the impeller head; a seal disc is fixed at the inner part of one end of the adjusting sleeve, the sealing ring is in contact with the seal disc in the axial direction, and an adjusting lever is connected on the adjusting sleeve.
Description
Technical field
The utility model discloses the gravel pump of a kind of adjustable sealing annulate shaft, belong to the engineering goods technical field to seal clearance, specifically with metallurgy, mine, coal, take out industries uses such as sand, row's silt gravel pump relevant.
Background technique
Gravel pump at metallurgy, mine, coal, take out in sand, the industry production such as row's silt etc. and all extensively be applied.Known gravel pump comprises pump case, back shroud; The bearing support that links to each other with back shroud, pump case, in bearing support the inside rotating shaft is installed, the outer end of rotating shaft is fixed with drive wheel, and the inner end of rotating shaft is fixed with impeller; Back shroud and bearing support mutually synapsis be fixed with and adjust cover, adjust between cover and the rotating shaft sealing oil sealing be installed, make gravel pump.This existing gravel pump in use has following defective: the one, and the sealing oil sealing is radially to contact with rotating shaft, rotating shaft and the gauge wear of sealing oil sealing when impeller rotates with rotating shaft, quick abrasion, it is serious to leak the hourglass slurry, causes the gravel pump cisco unity malfunction, and therefore the gravel pump of this structure is often changed the sealing oil sealing, not only maintenance load is big, delay production, reduce manufacturing efficiency, and increase maintenance expenses.
Summary of the invention
In use there are defectives such as sealing effect is poor, reduction manufacturing efficiency at existing gravel pump, the utility model discloses the gravel pump of a kind of adjustable sealing annulate shaft to seal clearance, utilize this gravel pump to carry out operation, can reduce the engineering time of gravel pump, save maintenance expenses, enhance productivity.
Taked following technological scheme for realizing the purpose of this utility model:
Make the gravel pump of a kind of adjustable sealing annulate shaft to seal clearance, this adjustable sealing annulate shaft comprises pump case, back shroud to the gravel pump of seal clearance; The bearing support that links to each other with back shroud, pump case, in bearing support the inside rotating shaft is installed, the outer end of rotating shaft is fixed with drive wheel, and the inner end of rotating shaft is fixed with impeller; Back shroud and bearing support mutually synapsis be fixed with and adjust cover, adjust in the cover and between the rotating shaft sealing oil sealing be installed; The utility model is to be provided with keyway at the impeller head place of impeller, outside the impeller head seal ring is installed; At adjustment cover one end internal fixation seal disc is arranged, seal ring axially contacts with seal disc, puts in adjustment and is connected with regulating lever.
The utility model has the advantages that simple in structurely, easy to manufacture, be convenient to promote;
Distinguishing feature of the present utility model is that seal clearance can be regulated, and good sealing effect reduces the gravel pump maintenance frequency, enhances productivity, and prolongs gravel pump working life.
Description of drawings
Further describe technical characteristics of the present utility model below in conjunction with accompanying drawing:
Fig. 1, an embodiment's of the utility model sectional structure schematic representation;
The local structure for amplifying schematic representation of Fig. 2, enforcement illustration;
Fig. 3, be the A--A sectional structure schematic representation of Fig. 2.
Among the figure: 1, pump case 2, back shroud 3, impeller 4, rotating shaft 5, drive wheel 6, bearing support 7, regulating lever 8, adjustment cover 9, seal ring 10, seal disc 11, keyway
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3,1 among the figure is pump case, and back shroud 2 is fixed together by bolt and back shroud 2 by bolt and pump case 1 bearing support 6 that is fixed together.Rotating shaft 4 is installed in bearing support 6, and the outer end of rotating shaft 4 is fixed with drive wheel 5, and the inner end of rotating shaft 4 is fixed with impeller 3; Back shroud 2 and bearing support 6 mutually synapsis be fixed with and adjust cover 8, adjust the cover the inside sealing oil sealing be installed, make existing gravel pump.The utility model is to be provided with keyway 11 at the impeller head place of impeller 3, and seal ring 9 is installed outside the impeller head; At an end internal fixation of adjusting cover 8 seal disc 10 is arranged, touch mutually with seal disc 10 outer of seal ring 9; On adjustment cover 8, connected regulating lever 7, rotated regulating lever 7 and can make adjustment sleeve 8 axial displacements.
Axial adjustment principle of the present utility model is as follows: when the impeller head of impeller 3 rotated with rotating shaft 4, seal ring 9 rotated thereupon, and seal ring 9 touches mutually with seal disc 10, has increased one deck sealing again; When the seal ring 9 of the impeller outer that is installed in impeller 3 when being installed in the seal disc of adjusting in cover 8 one ends 10 and increasing because of the friction gap, can rotate regulating lever 7 with stuffing box gland 8 axial displacements this moment, feasible seal ring 9 tight seals that are installed in the seal disc 10 in the stuffing box gland 8 and are fixed on impeller head outside.
Claims (1)
1, a kind of adjustable sealing annulate shaft is to the gravel pump of seal clearance, and this gravel pump comprises pump case (1), back shroud (2); The bearing support (6) that links to each other with back shroud (2), pump case (1), in bearing support (6) the inside rotating shaft (4) is installed, the outer end of rotating shaft (4) is fixed with drive wheel (5), and the inside one end of rotating shaft (4) is fixed with impeller (3); Back shroud (2) and bearing support (6) mutually synapsis be fixed with and adjust cover (8), adjust between cover (8) and the rotating shaft (4) the sealing oil sealing is installed, it is characterized in that: the impeller head place at impeller (3) is provided with keyway (11), and seal ring (9) is installed outside the impeller head; At adjustment cover (8) one end internal fixation seal disc (10) is arranged, seal ring (9) axially contacts with seal disc (10), is connected with regulating lever (7) on adjustment cover (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201477179U CN201301828Y (en) | 2008-06-30 | 2008-06-30 | Gravel pump capable of adjusting axial sealing clearance of sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201477179U CN201301828Y (en) | 2008-06-30 | 2008-06-30 | Gravel pump capable of adjusting axial sealing clearance of sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301828Y true CN201301828Y (en) | 2009-09-02 |
Family
ID=41085453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201477179U Expired - Fee Related CN201301828Y (en) | 2008-06-30 | 2008-06-30 | Gravel pump capable of adjusting axial sealing clearance of sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201301828Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963888A (en) * | 2015-06-12 | 2015-10-07 | 马海涛 | Sealing ring of sand suction pump |
-
2008
- 2008-06-30 CN CNU2008201477179U patent/CN201301828Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963888A (en) * | 2015-06-12 | 2015-10-07 | 马海涛 | Sealing ring of sand suction 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: 20090902 Termination date: 20110630 |