CN200999757Y - Blade with improved back side structure - Google Patents
Blade with improved back side structure Download PDFInfo
- Publication number
- CN200999757Y CN200999757Y CNU2006201626070U CN200620162607U CN200999757Y CN 200999757 Y CN200999757 Y CN 200999757Y CN U2006201626070 U CNU2006201626070 U CN U2006201626070U CN 200620162607 U CN200620162607 U CN 200620162607U CN 200999757 Y CN200999757 Y CN 200999757Y
- Authority
- CN
- China
- Prior art keywords
- blade
- blade lever
- back side
- pump
- width
- 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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Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Non-Positive Displacement Air Blowers (AREA)
Abstract
A blade lever with an improved back structure, which is comprised of a blade lever. The end part of the blade lever is contacted with a pump cavity wall, therein, a step is arranged on the back side of the blade lever within a certain length scope of the blade lever end, the back side of the blade lever presents a wedge shaped structure with the width gradually reduced toward the end, the width of the blade lever end is one third of the width of the initializing position of the step structure, and the step is arranged in the scope of 30 swung dash 40 mm of the blade lever end. The step structured is arranged on the back of the blade lever outlet through the method of cutting the back of the blade lever outlet, the pump performance is obviously improved, the operation is convenient, the cost is reduced and the working performance of the pump is enhanced.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to pump, the particularly impeller blade of pump, and concrete is a kind of blade with improved structure.
Background technique:
Blade is the vital part of pump, and the shape and structure of blade has very big influence to the service behaviour of pump.In the prior art, normally adopt and revise the blade sweeping style in order to improve pump performance, though this method can achieve the goal, the sweeping style design difficulty of revising blade greatly, require height, fabricating cost high to blade processing equipment.
Summary of the invention:
The purpose of this utility model provides a kind of blade with improved structure, and described this blade with improved structure will solve the technical problem of being inconvenient to improve the blade sweeping style in the prior art and then improving pump performance.
This blade with improved structure of the present utility model is made of blade, wherein, the back side of described blade, from the entrance point of blade to the outlet end direction, the thickness-tapered of blade.
Further, described vacuum side of blade one side is provided with step, and the width of described blade end is 1/3rd of a described step section start width.
Further, described step is arranged in 30 ~ 40mm scope apart from blade end.
Working principle of the present utility model is: cut by the blade exit back side is repaiied, obtain suitable sweeping style, can reach the purpose of improving pump performance, through repairing the blade after cutting, features such as the pressure-flow of pump, efficient-flow all are significantly improved.
The utility model and prior art contrast, and its effect is actively with tangible.The utility model is provided with ledge structure by repairing the method for cutting the blade exit back side at the blade exit back side, and pump performance is improved significantly, and is easy to operate, reduced cost, and improved the service behaviour of pump.
Description of drawings:
Fig. 1 is the structural representation with blade of improved structure of the present utility model.
Fig. 2 is another structural representation with blade of improved structure of the present utility model
Embodiment:
As depicted in figs. 1 and 2, a kind of blade with improved structure of the utility model is made of blade 1, the back side of described blade, from the entrance point of blade to the outlet end direction, the thickness-tapered of blade.
Concrete, described blade 1 terminal end contacts with pump chamber wall 2, is positioned at described blade 1 back side one side and is provided with step 3 in described blade 1 terminal certain-length L scope, and described blade 1 back side one side is the wedge-shaped structure that the width terminad successively decreases.
Further, the width of described blade end is 1/3rd of described step 3 structure section start width W.
Further, described step is arranged in described blade end 30～40mm scope.
Claims (3)
1. the blade with improved structure is made of blade, it is characterized in that: the back side of described blade, from the entrance point of blade to the outlet end direction, the thickness-tapered of blade.
2. the blade with improved structure as claimed in claim 1 is characterized in that: described vacuum side of blade one side is provided with step, and the width of described blade end is 1/3rd of a described step section start width.
3. the blade with improved structure as claimed in claim 1 is characterized in that: described step is arranged in 30～40mm scope apart from blade end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201626070U CN200999757Y (en) | 2006-12-30 | 2006-12-30 | Blade with improved back side structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201626070U CN200999757Y (en) | 2006-12-30 | 2006-12-30 | Blade with improved back side structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200999757Y true CN200999757Y (en) | 2008-01-02 |
Family
ID=39014164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201626070U Expired - Fee Related CN200999757Y (en) | 2006-12-30 | 2006-12-30 | Blade with improved back side structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200999757Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864099A (en) * | 2016-05-24 | 2016-08-17 | 江苏大学 | Design method for outlet-end folded edge blade structure of impeller of middle-high-ratio rotating speed centrifugal pump |
| CN105971926A (en) * | 2016-05-09 | 2016-09-28 | 江苏大学 | Design method of impeller double-end edge folding blade V-shaped cutting structure of double suction pump |
| CN105971929A (en) * | 2016-05-09 | 2016-09-28 | 江苏大学 | Structure design method for V-shaped cutting structure of edge folding blades at inlet end of impeller of double suction pump |
-
2006
- 2006-12-30 CN CNU2006201626070U patent/CN200999757Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971926A (en) * | 2016-05-09 | 2016-09-28 | 江苏大学 | Design method of impeller double-end edge folding blade V-shaped cutting structure of double suction pump |
| CN105971929A (en) * | 2016-05-09 | 2016-09-28 | 江苏大学 | Structure design method for V-shaped cutting structure of edge folding blades at inlet end of impeller of double suction pump |
| CN105864099A (en) * | 2016-05-24 | 2016-08-17 | 江苏大学 | Design method for outlet-end folded edge blade structure of impeller of middle-high-ratio rotating speed centrifugal pump |
| CN105864099B (en) * | 2016-05-24 | 2018-06-26 | 江苏大学 | A kind of design method of middle higher specific speed centrifugal pump impeller port of export edge folding blades structure |
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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: 20080102 Termination date: 20121230 |