CN2752502Y - Locking device for adjustable blade water pump vane base - Google Patents
Locking device for adjustable blade water pump vane base Download PDFInfo
- Publication number
- CN2752502Y CN2752502Y CN 200420110147 CN200420110147U CN2752502Y CN 2752502 Y CN2752502 Y CN 2752502Y CN 200420110147 CN200420110147 CN 200420110147 CN 200420110147 U CN200420110147 U CN 200420110147U CN 2752502 Y CN2752502 Y CN 2752502Y
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- pump rotating
- impeller base
- pump
- impeller seat
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a locking device for an impeller seat of a water pump with adjustable blades, which comprises a pump rotating shaft, an impeller seat, blades and blade locking nuts. The utility model is characterized in that a shaft hole of the impeller seat, which faces to the inner part of a chamber of the impeller seat is extended with a shaft sleeve; the pump rotating shaft is positioned in the shaft hole and the shaft sleeve of the impeller seat; the pump rotating shaft is provided with keys corresponding to the shaft hole of the impeller seat; the top end of the pump rotating shaft is provided with screw threads provided with locking nuts, and the locking nuts are closely matched with the shaft sleeve. The utility model has the advantages that the impeller seat and the pump rotating shaft are connected in a reliable way and are assembled and the disassembled easily.
Description
Technical field
The utility model relates to a kind of locking device, the locking device of the adjustable water pump vane seat of particularly a kind of blade.
Background technique
The rotating shaft connecting structure of the impeller base of axial-flow pump and pump as shown in Figure 1 at present, the rotating shaft locking device of impeller base and pump adopts two shaft end nuts 12,13 to be arranged in impeller base 11 chambeies, shaft end nut 12 is provided with screw counter bore 14, be fixed on the impeller base 11 by socket head screw 15 after being screwed to correct position, use shaft end nut 13 fastenings then.Have following shortcoming: can't lock fully, easily get loose, less because of the impeller base internal cavities, can only reduce axle head screw thread specification and shaft end nut specification, easily cause product quality problem, the mounting or dismounting trouble needs the design specialized instrument.
Summary of the invention
The purpose of this utility model is to solve the impeller base of axial-flow pump in the prior art and the existing problem of rotating shaft connecting structure of pump, and a kind of impeller base locking device reliable, that mounting or dismounting are easy to axial-flow pump that connects is provided.The utility model designs the locking device of the adjustable water pump vane seat of a kind of blade, comprise pump rotating shaft, impeller base, blade, blade locking nut, it is characterized in that: the axis hole of impeller base has the axle sleeve of extension in the impeller base cavity, the pump rotating shaft is positioned at the axis hole and the axle sleeve of impeller base, the axis hole of key corresponding to impeller base arranged in the pump rotating shaft, there is screw thread on top in the pump rotating shaft, and locking nut is arranged on the screw thread, and locking nut and axle sleeve be close-fitting mutually.The utility model has the advantages that impeller base is connected with the pump rotating shaft reliably and mounting or dismounting are easy.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing 1 is the prior art constructions schematic representation,
Accompanying drawing 2 is a structural representation of the present utility model,
Embodiment
Comprise pump rotating shaft 1, impeller base 2, blade 3, blade locking nut 4 among the figure, it is characterized in that: the axis hole 5 of impeller base 2 has the axle sleeve 6 of extension in impeller base 2 cavitys, pump rotating shaft 1 is positioned at the axis hole 5 and the axle sleeve 6 of impeller base 2, the axis hole 5 of key 7 corresponding to impeller base 2 arranged in the pump rotating shaft 5, on the top of pump rotating shaft 1 screw thread 8 is arranged, locking nut 9 is arranged on the screw thread 8, and locking nut 9 and axle sleeve 6 end faces are close-fitting mutually.Owing to be to turn locking nut 9 when mounted on the top, the outside of impeller base 2, therefore can utilize instrument to operate without restriction, and, guaranteed the quality of product because the size of locking nut 9 and pump rotating shaft 1 can be carried out according to designing requirement.
Claims (1)
1, the locking device of the adjustable water pump vane seat of a kind of blade, comprise pump rotating shaft, impeller base, blade, blade locking nut, it is characterized in that: the axis hole of impeller base has the axle sleeve of extension in the impeller base cavity, the pump rotating shaft is positioned at the axis hole and the axle sleeve of impeller base, the axis hole of key corresponding to impeller base arranged in the pump rotating shaft, there is screw thread on top in the pump rotating shaft, and locking nut is arranged on the screw thread, and locking nut and axle sleeve be close-fitting mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110147 CN2752502Y (en) | 2004-11-22 | 2004-11-22 | Locking device for adjustable blade water pump vane base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420110147 CN2752502Y (en) | 2004-11-22 | 2004-11-22 | Locking device for adjustable blade water pump vane base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2752502Y true CN2752502Y (en) | 2006-01-18 |
Family
ID=35913911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420110147 Expired - Fee Related CN2752502Y (en) | 2004-11-22 | 2004-11-22 | Locking device for adjustable blade water pump vane base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2752502Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330704A (en) * | 2011-07-11 | 2012-01-25 | 江苏秋林重工股份有限公司 | Impeller base |
-
2004
- 2004-11-22 CN CN 200420110147 patent/CN2752502Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330704A (en) * | 2011-07-11 | 2012-01-25 | 江苏秋林重工股份有限公司 | Impeller base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |