CN214465086U - Device for adjusting clearance between impeller and pump shell - Google Patents
Device for adjusting clearance between impeller and pump shell Download PDFInfo
- Publication number
- CN214465086U CN214465086U CN202120557119.4U CN202120557119U CN214465086U CN 214465086 U CN214465086 U CN 214465086U CN 202120557119 U CN202120557119 U CN 202120557119U CN 214465086 U CN214465086 U CN 214465086U
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- CN
- China
- Prior art keywords
- impeller
- pump
- sleeve
- pump shaft
- conical sleeve
- 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
- 238000000034 method Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a pump, especially a device in adjustment impeller and pump case clearance. The pump comprises a pump shaft and an impeller, wherein a conical part is arranged at the outer end of the pump shaft, a slotted conical sleeve is sleeved on the conical part, an axial long groove is formed in the sleeve wall of the slotted conical sleeve, a threaded hole is formed in the sleeve bottom of the slotted conical sleeve, an adjusting nut with external threads is screwed in the threaded hole and provided with a hexagon socket, the impeller is sleeved on the slotted conical sleeve, a fastening screw penetrates through a through hole of the impeller and the hexagon socket of the adjusting nut, and the inner end of the fastening screw is in threaded connection with the pump shaft. The utility model discloses adjustment method is simple, and the structure is simplified, the adjustment is convenient, avoid with impeller repeated installation, alleviate intensity of labour, labour saving and time saving improves work efficiency.
Description
Technical Field
The utility model relates to a pump, especially a device in adjustment impeller and pump case clearance.
Background
In the process of production, assembly and use of an impeller of the pump, the clearance between the impeller and a pump shell needs to be adjusted, the efficiency of the pump is improved, and the adjustment of the clearance of the impeller is mostly completed by a method of adding an adjusting gasket on a pump shaft at present. The structure has the advantages of repeated loading and unloading, low efficiency, high labor intensity and particular discomfort in adjusting a large impeller. The utility model discloses a grant notice number is CN 211009255U's utility model discloses a dive mixed flow pump in adjustable impeller and pump case clearance, this utility model's impeller and pump shaft lead to the key joint, and the clearance through setting up at the adjusting collar adjustment impeller in the pump shaft outer end adjusts loaded down with trivial details, wastes time and energy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem and providing a device in adjustment impeller and pump case clearance.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a device of adjustment impeller and pump case clearance, includes the pump shaft, the impeller, the outer end of pump shaft is equipped with the toper portion, fluting toper cover suit is on this toper portion, the mantle wall of fluting toper cover is equipped with axial elongated slot, the cover bottom of fluting toper cover is equipped with the screw hole, the adjusting nut that is equipped with the external screw thread is closed soon in this screw hole, this adjusting nut is equipped with interior hexagonal hole, the impeller suit is on fluting toper cover, fastening screw passes the through-hole of impeller and the interior hexagonal hole of adjusting nut, fastening screw's the inner and pump shaft threaded connection.
Adopt above-mentioned technical scheme the utility model discloses compare with prior art, beneficial effect is:
the adjusting method is simple, the structure is simplified, the adjustment is convenient, the impeller is prevented from being repeatedly installed, the labor intensity is reduced, the time and the labor are saved, and the working efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
in the figure: fastening the screw rod 1; adjusting the nut 2; a slotted conical sleeve 3; a pump shaft 4; a pump cover 5; an impeller 6; a pump housing 7.
Detailed Description
The present invention will be further described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the present embodiment is a device for adjusting the gap between an impeller and a pump casing, a pump shaft 4 is installed in a shaft hole of the pump casing 7, and a pump cover 5 is installed at the outer end of the pump casing 7. The outer end of the pump shaft 4 is located in an impeller chamber of the pump shell 7, the outer end of the pump shaft 4 is provided with a conical part, the slotted conical sleeve 3 is sleeved on the conical part, one end of the slotted conical sleeve 3 is open, the inner peripheral surface of the slotted conical sleeve is a conical surface, the outer peripheral surface of the slotted conical sleeve is a cylindrical surface, the sleeve wall of the slotted conical sleeve is provided with a plurality of axial long grooves, the center of the sleeve bottom of the slotted conical sleeve 3 is provided with a threaded hole, the adjusting nut 2 is screwed in the threaded hole, the outer peripheral surface of the adjusting nut 2 is cylindrical, and the adjusting nut 2 is provided with an external thread and an internal hexagonal hole.
The impeller 6 is sleeved on the slotted conical sleeve 3, the fastening screw rod 1 penetrates through a through hole of the impeller 6 and an inner hexagonal hole of the adjusting nut 2, the inner end of the fastening screw rod 1 is in threaded connection with the pump shaft 4, and a nut of the fastening screw rod 1 is of an inner hexagonal structure.
The adjustment process of this embodiment is: the fastening screw rod 1 is detached, the hexagon socket head cap wrench is used for rotating the hexagon socket head cap hole of the adjusting nut 2, the adjusting nut 2 rotates, the inner end face of the adjusting nut 2 is propped against the outer end face of the pump shaft 4, the slotted conical sleeve 3 is driven by the adjusting nut 2 to move axially outwards, the slotted conical sleeve 3 and the pump shaft 4 are separated and move downwards to enable the impeller 6 to be adjusted to a required position, after the slotted conical sleeve 3 and the pump shaft 4 are matched well again, the fastening screw rod 1 is used for fastening, and at the moment, the slotted conical sleeve 3 is opened due to stress and is tightly locked with the inner hole of the impeller 6.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (1)
1. The utility model provides an adjustment impeller and device in pump case clearance, includes the pump shaft, the impeller, its characterized in that: the outer end of the pump shaft is provided with a conical part, a slotted conical sleeve is sleeved on the conical part, the sleeve wall of the slotted conical sleeve is provided with an axial long groove, the sleeve bottom of the slotted conical sleeve is provided with a threaded hole, an adjusting nut with external threads is screwed in the threaded hole, the adjusting nut is provided with a hexagon socket, an impeller is sleeved on the slotted conical sleeve, a fastening screw penetrates through a through hole of the impeller and the hexagon socket hole of the adjusting nut, and the inner end of the fastening screw is in threaded connection with the pump shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120557119.4U CN214465086U (en) | 2021-03-18 | 2021-03-18 | Device for adjusting clearance between impeller and pump shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120557119.4U CN214465086U (en) | 2021-03-18 | 2021-03-18 | Device for adjusting clearance between impeller and pump shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214465086U true CN214465086U (en) | 2021-10-22 |
Family
ID=78156566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120557119.4U Expired - Fee Related CN214465086U (en) | 2021-03-18 | 2021-03-18 | Device for adjusting clearance between impeller and pump shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214465086U (en) |
-
2021
- 2021-03-18 CN CN202120557119.4U patent/CN214465086U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |