CN202348762U - Shrouded impeller for internally plastic-coated pumps - Google Patents
Shrouded impeller for internally plastic-coated pumps Download PDFInfo
- Publication number
- CN202348762U CN202348762U CN2011204878549U CN201120487854U CN202348762U CN 202348762 U CN202348762 U CN 202348762U CN 2011204878549 U CN2011204878549 U CN 2011204878549U CN 201120487854 U CN201120487854 U CN 201120487854U CN 202348762 U CN202348762 U CN 202348762U
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- China
- Prior art keywords
- cover plate
- impeller
- blades
- blade
- front cover
- 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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Abstract
The utility model relates to a shrouded impeller for internally plastic-coated pumps. The shrouded impeller comprises a front cover plate (1), a rear cover plate (3) and blades (2), and is characterized in that: the impeller is pressed by two sets of dies, one set of die is separately produced for the rear cover plate (3), and the rear cover plate (3) is provided with positioning pin holes (6) according to the blade profile; the blades (2) are arranged on the front cover plate (1), the other set of die is produced for the blades (2) and the front cover plate (1), the blades (2) are evenly distributed along the circumference of the front cover plate (1), and each blade (2) is provided with two positioning pins (5) on different circumferential directions; and the front cover plate (1) with the blades (2) and the rear cover plate (3) are positioned by the positioning pins (5) on the blades (2), and are connected by corrosion-resistant plastic bolts (4), so that the whole impeller is formed. Since the front cover plate and the rear cover plate are pressed by the two sets of dies and the blades can be produced into a double-curvature shape, the hydraulic performance of the impeller is enhanced. Since the front cover plate and the rear cover plate are connected by the corrosion-resistant plastic bolts and the altitude of the blades can be adjusted according to needs; and the shrouded impeller can meet the requirements of different service conditions, and can keep high efficiency.
Description
Technical field
The utility model relates to a kind of plastics double shrouded wheel of plastic lining pump.
Background technique
Impeller is a pump most important work element, is the core of flow passage components, and being influences the most important element of pump efficiency, so the design of impeller is the pump key for design.Impeller is divided into enclosed, semi-open type, unshrouded impeller by geometrical shape.What the plastic lining pump mainly adopted at present is double shrouded wheel, and blade shape is the single-curvature blade, and this mainly is the pressing process that is subject to plastic impeller.For the demoulding is easy, impeller blade often adopts the single-curvature type, and rounding is several sections circular arcs, though the demoulding has so easily destroyed the hydraulic performance of blade, makes the efficient reduction of impeller; The corresponding one group of design parameter of impeller mold is done the function of use that can not give full play to mould so simultaneously, can not satisfy the various working condition again, and the input ratio of mould is bigger, and cost is high, and mould structure is complicated.Though double curvature blade efficient is high, owing to be double shrouded wheel, can't take out the patch of impeller mold, can not suppress impeller.Therefore, the existing structure form all can not provide the double shrouded wheel of the plastic lining pump of a kind of economy, efficient, simple in structure, variable element.
Summary of the invention
The purpose of the utility model is in order to overcome deficiency of the prior art, a kind of plastics double shrouded wheel of plastic lining pump to be provided, thereby efficiently solves the problem that exists in the existing technology.
The purpose of the utility model can realize through adopting following technological scheme:
Described a kind of plastics double shrouded wheel includes front shroud, back shroud and blade, and its characteristics are: impeller is divided into the compacting of two molds, and back shroud is done a mold separately, has positioning pin hole according to vane type line on it; Blade is done a mold with front shroud on front shroud, blade is along the front shroud circumference uniform distribution, and each blade has two locating studs on different circumferencial directions; Front shroud of impeller and back shroud through the corrosion-resistant plastic screw attachment, form an integral wheel through the location of the locating stud on the blade.
Described front shroud, back shroud material are perfluoroethylene-propylene.
Described corrosion-resistant plastic screw is processed for gathering PTFE.
The beneficial effect of the utility model is:
1, the utility model front and rear cover plate divides two molds compactings, blade can be made the double curvature shape, has overcome the problem that available technology adopting double curvature blade impeller can't compression moulding, thereby has improved the hydraulic performance of impeller.
2, front and rear cover plate is through the corrosion-resistant plastic screw attachment, and blade height can be regulated as required, can satisfy the requirement of different applying working conditions, can keep higher efficient.
3, at small flow, high-lift environment, impeller outlet is very little, adopts the integral wheel outlet too narrow, and the mould patch can't be manufactured, and the utility model can address this problem.
4, the utility model technology is simple, cost of production is low, safe and reliable assurance the usability of impeller.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the front shroud of impeller structural representation of the utility model.
Fig. 3 is the back shroud of impeller structural representation of the utility model.
In the accompanying drawing: 1. front shroud, 2. blade, 3. back shroud, 4. screw, 5. locating stud, 6. positioning pin hole.
Embodiment:
Specify the specific embodiment of the utility model below in conjunction with accompanying drawing;
See Fig. 1,2,3, the plastics double shrouded wheel of described a kind of plastic lining pump includes front shroud (1), back shroud (3) and blade (2).Impeller is divided into the compacting of two molds, and back shroud (3) is made mould and suppressed separately, has positioning pin hole (6) according to vane type line; Front shroud (1) is made mould with blade (2), and blade (2) is along the front shroud circumference uniform distribution, and each blade has two locating studs (5) on different circumferencial directions; Blade (2) is open; Vane type line adopts the double curvature type, links for the ease of screw, and vane thickness is widened; In order to form a plurality of flow points, blade height is increased; The front shroud that suppresses (1) is located through positioning pin hole (6) on the back shroud (3) and the locating stud (5) on the blade (2) with back shroud (3), is fitted together, and goes up at back shroud (3) and joins the auger shell hole according to vane type line; Connect front shroud (1) and back shroud (3) with corrosion-resistant plastic screw (4) through the screw of joining brill, form an integral wheel.Described front shroud (1), back shroud (3) material are perfluoroethylene-propylene.Described corrosion-resistant plastic screw is processed for gathering PTFE.The test of the utility model and integral wheel hydraulic performance contrasts like following table:
Claims (3)
1. the double shrouded wheel of a plastic lining pump includes front shroud (1), back shroud (3) and blade (2), and its characteristics are: impeller is divided into the compacting of two molds, and back shroud (3) is done a mold separately, has positioning pin hole (6) according to vane type line on it; Blade (2) is done a mold with front shroud (1) on front shroud (1), blade (2) is along the front shroud circumference uniform distribution, and each blade has two locating studs (5) on different circumferencial directions; Front shroud of impeller (1) is located through the locating stud (5) on the blade (2) with back shroud (3), connects through corrosion-resistant plastic screw (4), forms an integral wheel.
2. the double shrouded wheel of a kind of plastic lining pump according to claim 1 is characterized in that: described front shroud (1), back shroud (3) material are perfluoroethylene-propylene.
3. the double shrouded wheel of a kind of plastic lining pump according to claim 1 is characterized in that: described corrosion-resistant plastic screw (5) is processed for gathering PTFE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204878549U CN202348762U (en) | 2011-11-30 | 2011-11-30 | Shrouded impeller for internally plastic-coated pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204878549U CN202348762U (en) | 2011-11-30 | 2011-11-30 | Shrouded impeller for internally plastic-coated pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348762U true CN202348762U (en) | 2012-07-25 |
Family
ID=46537770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204878549U Expired - Fee Related CN202348762U (en) | 2011-11-30 | 2011-11-30 | Shrouded impeller for internally plastic-coated pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321505A (en) * | 2015-06-30 | 2017-01-11 | 上海梅山钢铁股份有限公司 | Adjustable single suction pump impeller suitable for multiple working conditions and machining method |
| CN110653579A (en) * | 2019-10-28 | 2020-01-07 | 襄阳五二五泵业有限公司 | Method for manufacturing closed impeller with narrow flow passage |
-
2011
- 2011-11-30 CN CN2011204878549U patent/CN202348762U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321505A (en) * | 2015-06-30 | 2017-01-11 | 上海梅山钢铁股份有限公司 | Adjustable single suction pump impeller suitable for multiple working conditions and machining method |
| CN110653579A (en) * | 2019-10-28 | 2020-01-07 | 襄阳五二五泵业有限公司 | Method for manufacturing closed impeller with narrow flow passage |
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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: 20120725 Termination date: 20131130 |