CN202718916U - Impeller for small-sized multiple-stage centrifugal pump - Google Patents
Impeller for small-sized multiple-stage centrifugal pump Download PDFInfo
- Publication number
- CN202718916U CN202718916U CN 201220334775 CN201220334775U CN202718916U CN 202718916 U CN202718916 U CN 202718916U CN 201220334775 CN201220334775 CN 201220334775 CN 201220334775 U CN201220334775 U CN 201220334775U CN 202718916 U CN202718916 U CN 202718916U
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- China
- Prior art keywords
- mounting hole
- impeller
- pump
- base plate
- compact multi
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- Expired - Lifetime
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Abstract
The utility model discloses an impeller for a small-sized multiple-stage centrifugal pump. The impeller consists of a compression molding bottom plate (1), a cover plate (2) and a plurality of blades (3) positioned between the bottom plate and the cover plate; a fluid inlet positioned on the cover plate is communicated with a runner among the blades; outlets are positioned on four sides of the impeller; the impeller is arranged on a pump shaft through a mounting hole in the bottom plate; the mounting hole in the bottom plate is a flat columnar hole; and the contour surface of the mounting hole consists of two symmetrical planes and two symmetrical arc surfaces, and two ends of the planes are connected with the arc surfaces. By adopting the impeller with the structure, the machining difficulty and the cost of an impeller shaft can be greatly reduced, and the production cost of the small-sized multiple-stage centrifugal pump is also reduced.
Description
Technical field
The utility model relates to compact multi-level centrifugal pump technical field, particularly relates to a kind of impeller that uses in the compact multi-level centrifugal pump.
Background technique
Impeller is the core component of centrifugal pump, and flow is converted into mechanical energy the pressure energy of fluid through the impeller of High Rotation Speed.The compact multi-level centrifugal pump mostly is the supporting pump of using of lathe, and the cost of pump is had higher requirement.The compact multi-level centrifugal pump of prior art, because cost and the volume restrictions of pump, as the impeller of centrifugal pump core component, the members such as its base plate and cover plate adopt compression molding more.Adopt compression molding can greatly cut down finished cost than the fine finishing moulding.The impeller base plate of prior art, its mounting hole that is used for impeller is installed on the pump shaft is scallop, the pump shaft that is complementary with it correspondingly is the profile of tooth floral axis.The profile of tooth mounting hole of base plate can be by compression molding, but is used for installing the profile of tooth floral axis of impeller, then can not by compression molding, usually can only adopt finish-milling machine shaping.As the profile of tooth floral axis of pump shaft, finish-milling machine shaping difficulty is larger, the processing time consuming effort, and processing cost is high.The Impeller Machining cost is high, must raise the cost of centrifugal pump complete machine.
The model utility content
For the deficiency that the compact multi-level centrifugal pump impeller of prior art exists, the purpose of this utility model is to provide a kind of centrifugal impeller of pump of compact multi-level of new structure, to reduce the cost of production of compact multi-level centrifugal pump.
The centrifugal impeller of pump of the compact multi-level that the utility model provides, its structure mainly is made of base plate, cover plate and the some blades between base plate and cover plate of compression molding, be communicated with runner between the blade at the fluid inlet on the cover plate, the outlet be positioned at impeller around, impeller is installed on the pump shaft by the mounting hole on the base plate, mounting hole on the base plate is inclined to one side flat pattern cylinder hole, and the contoured surface of mounting hole is made of two planes and the two symmetrical arc surfaces of symmetry, and the two ends, plane connect arc surface.
In the centrifugal impeller of pump of above-mentioned compact multi-level, described mounting hole contoured surface, decision design becomes to be made of two planes of symmetrical parallel and two arc surfaces of symmetrical parallel, is straight irregular cylinder mounting hole.Be positioned at the mounting hole on the base plate, further decision design is neck shell type mounting hole, and the neck length degree of neck shell type mounting hole should not be greater than the height of blade.Scheme further, the base plate plate face patrix outside mounting hole extrudes the reinforcement annular groove that is used for improving base plate strength.It is preferably coaxial with mounting hole to strengthen annular groove.
The centrifugal impeller of pump of the compact multi-level that the utility model provides, mounting hole is designed to inclined to one side flat pattern cylinder hole, the inclined to one side flat pattern pump shaft that is complementary with it, only needing on cylinder axis finish-milling to process two symmetry planes gets final product, than the profile of tooth mounting hole of existing impeller, pump shaft is the profile of tooth floral axis, and greatly reduce accurately machined man-hour, difficulty reduces greatly, the greatly reduction that has therefore brought the cost of compact multi-level centrifugal pump complete machine.
Description of drawings
Fig. 1-1 is the form structure schematic representation of the existing centrifugal impeller of pump of compact multi-level; Fig. 1-2 is E-E direction sectional structure schematic representation among Fig. 1-1; Fig. 1-3 is F-F direction sectional structure schematic representation among Fig. 1-1.
Fig. 2-1 is the form structure schematic representation of the centrifugal impeller of pump of the utility model compact multi-level; Fig. 2-2 is B-B direction sectional structure schematic representation among Fig. 2-1; Fig. 2-3 is C-C direction sectional structure schematic representation among Fig. 2-1.
In above-mentioned accompanying drawing, the shown by reference numeral denoted object is respectively: the 1-base plate; The 2-cover plate; The 3-blade.
Embodiment
Provide an embodiment of the present utility model below in conjunction with description of drawings; by embodiment the utility model is further described specifically; but be necessary to be pointed out that at this; embodiment only is used for the utility model is further detailed; can not be interpreted as the restriction to the utility model protection domain; the person skilled in art makes some nonessential improvement and adjustment according to above-mentioned content of the present utility model, and to carry out implementation be need not pay creative work, should still belong to protection domain of the present utility model.
The centrifugal impeller of pump of the compact multi-level of present embodiment, its structure as shown in Figure 2, by base plate 1, cover plate 2 and blade 3 consist of by mold pressing spot welding, between base plate 1 and cover plate 2, be evenly equipped with 4 blades 3, it is the runner of fluid between the blade, be communicated with runner between the blade at the fluid inlet on the cover plate, the outlet be positioned at impeller around, mounting hole on the impeller base plate is the inclined to one side flat pattern cylinder of neck shell type hole, the contoured surface of mounting hole is made of two planes of symmetrical parallel and the two cylindrical surface of symmetrical parallel, two ends, plane connecting cylinder face, the neck length degree of neck cover is lower than the height of blade, base plate plate face patrix outside mounting hole extrudes the reinforcement annular groove that be used for improve base plate strength coaxial with mounting hole, and the section of annular groove is circular-arc.
Claims (6)
1. centrifugal impeller of pump of compact multi-level, base plate (1), cover plate (2) and the some blades (3) between base plate and cover plate by compression molding consist of, be communicated with runner between the blade at the fluid inlet on the cover plate, the outlet be positioned at impeller around, impeller body is installed on the pump shaft by the mounting hole on the base plate, it is characterized in that the mounting hole on the base plate is inclined to one side flat pattern cylinder hole, the contoured surface of mounting hole is made of two planes and the two symmetrical arc surfaces of symmetry, and the two ends, plane connect arc surface.
2. the centrifugal impeller of pump of compact multi-level according to claim 1 is characterized in that the mounting hole contoured surface is made of two planes of symmetrical parallel and two arc surfaces of symmetrical parallel.
3. the centrifugal impeller of pump of compact multi-level according to claim 1 and 2 is characterized in that the mounting hole on the base plate is neck shell type mounting hole.
4. the centrifugal impeller of pump of compact multi-level according to claim 3 is characterized in that the neck length degree of neck shell type mounting hole is not more than the height of blade.
5. the centrifugal impeller of pump of compact multi-level according to claim 1 and 2 is characterized in that the base plate plate face patrix outside mounting hole is pressed with the reinforcement annular groove.
6. the centrifugal impeller of pump of compact multi-level according to claim 5, it is coaxial with mounting hole to it is characterized in that strengthening annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334775 CN202718916U (en) | 2012-07-11 | 2012-07-11 | Impeller for small-sized multiple-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334775 CN202718916U (en) | 2012-07-11 | 2012-07-11 | Impeller for small-sized multiple-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718916U true CN202718916U (en) | 2013-02-06 |
Family
ID=47620740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220334775 Expired - Lifetime CN202718916U (en) | 2012-07-11 | 2012-07-11 | Impeller for small-sized multiple-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202718916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734179A (en) * | 2012-07-11 | 2012-10-17 | 四川简阳云海泵业有限公司 | Minitype multistage centrifugal pump |
-
2012
- 2012-07-11 CN CN 201220334775 patent/CN202718916U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734179A (en) * | 2012-07-11 | 2012-10-17 | 四川简阳云海泵业有限公司 | Minitype multistage centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |