CN211082373U - Semi-closed centrifugal water pump impeller - Google Patents
Semi-closed centrifugal water pump impeller Download PDFInfo
- Publication number
- CN211082373U CN211082373U CN201922168952.5U CN201922168952U CN211082373U CN 211082373 U CN211082373 U CN 211082373U CN 201922168952 U CN201922168952 U CN 201922168952U CN 211082373 U CN211082373 U CN 211082373U
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- Prior art keywords
- impeller
- water pump
- semi
- chassis
- centrifugal water
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000001746 injection moulding Methods 0.000 abstract description 7
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000004512 die casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007528 sand casting Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a semi-closed centrifugal water pump impeller, including impeller body and impeller casing, the impeller body sets up the chassis in shaft hole and a plurality of blades of evenly distributed on the chassis including the center, set up a plurality of welding grooves that correspond with blade distribution position on the impeller casing, the blade butt fusion is in welding the inslot, the external diameter of impeller casing is less than the external diameter on chassis. And a small hole is formed near the shaft hole on the chassis. Compared with the open impeller and the semi-open impeller with the same size, the efficiency of the electronic water pump adopting the semi-closed centrifugal water pump impeller of the utility model is effectively improved; compared with the closed water pump impeller with the same size, the noise is obviously reduced. The utility model discloses a structure is favorable to the components of a whole that can function independently manufacturing, can satisfy injection moulding's condition, possesses advantages such as injection molding batch production industry, has reduced the production degree of difficulty and manufacturing cost.
Description
Technical Field
The utility model relates to a semi-closed centrifugal water pump impeller belongs to centrifugal electronic pump impeller structural design technical field.
Background
The impeller is a core part for transmitting mechanical energy to fluid in the centrifugal water pump, and in order to obtain high energy conversion efficiency and wide application range, the blade shape of the water pump impeller is continuously optimized along the radial direction of the impeller. The width of the flow channel is smaller near the center and larger near the edges. In order to avoid flow loss caused by boundary layer separation due to too fast flow velocity of fluid in the impeller, the height of the blade needs to be optimized, and the height of the blade is reduced as the distance from the axis of the impeller is larger. The impeller structure of centrifugal electronic water pump includes three kinds of forms of open impeller, semi-open impeller and closed impeller at present, adopts open impeller and semi-open electronic water pump operating efficiency low, and the electronic water pump operating efficiency that adopts closed impeller is superior to open and semi-open but the noise is greater than open and semi-open impeller.
The impeller with the three-dimensional optimized blades can be made into a closed impeller by a sand casting method, and the sand casting is only suitable for metal materials and has low production efficiency. The impeller of the high-efficiency compact centrifugal water pump widely used for the automobile heat management system adopts an injection molding process or an aluminum alloy die casting process, and the two processes have the advantages of high efficiency, precision and low cost. Because the core of the die can only be moved out of the part and can not be decomposed, the injection molding and die casting processes can only manufacture the three-dimensional optimized open impeller or the simplified integral closed impeller, and the manufacture of the three-dimensional optimized integral closed impeller can not be demoulded.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a semi-closed centrifugal water pump impeller is provided, the combination of semi-open and closed impeller combines in certain degree, has the advantage of two kinds of impeller structures concurrently.
In order to solve the above problem, the utility model discloses a technical scheme as follows:
a semi-closed centrifugal water pump impeller comprises an impeller body and an impeller cover, wherein the impeller body comprises a chassis with a shaft hole in the center and a plurality of blades which are uniformly arranged on the chassis by taking the shaft hole as the center,
the impeller cover is provided with a plurality of welding grooves corresponding to the distribution positions of the blades, the blades are welded in the welding grooves, and the outer diameter of the impeller cover is smaller than that of the chassis.
Further, according to actual needs, the outer diameter of the impeller cover is one third or one half or two thirds of that of the chassis.
Furthermore, a small hole is formed near the shaft hole on the chassis.
Furthermore, the number of the small holes is two, and the small holes are symmetrically distributed on two sides of the shaft hole.
Preferably, the blade is twisted.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. compared with the open impeller and the semi-open impeller with the same size, the efficiency of the electronic water pump adopting the semi-closed centrifugal water pump impeller of the utility model is effectively improved; and the noise is obviously reduced compared with the noise when the closed water pump impeller with the same size runs.
2. The utility model discloses semi-enclosed impeller is favorable to adopting impeller casing and impeller body components of a whole that can function independently to make processing, can satisfy injection moulding's condition, possesses injection molding mass production industry class advantage, has reduced the production degree of difficulty and manufacturing cost.
3. The utility model discloses a set up the aperture on the chassis, can effectively balance the water pressure between inside and the outside in the impeller operation, have the shock attenuation effect. The twisted blades can reduce the load of the blades, improve the suction performance of the centrifugal pump and improve the cavitation erosion resistance.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a front view of an embodiment of the present invention.
Fig. 3 is a side view of an embodiment of the present invention.
Fig. 4 is a rear view of an embodiment of the present invention
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. The objects, aspects and advantages of the present invention will become more apparent from the following description. It should be understood that the described embodiments are presently preferred, but not all embodiments of the invention.
Referring to fig. 1 to 4, a semi-closed centrifugal water pump impeller includes an impeller body 1 and an impeller cover 2. The impeller body 1 comprises a chassis 10 with a shaft hole 11 in the center and a plurality of blades 12 uniformly arranged on the chassis 10 by taking the shaft hole 11 as the center. The impeller cover 2 is provided with a plurality of welding grooves 20 corresponding to the distribution positions of the blades 12, the blades 12 are welded in the welding grooves 20, and the outer diameter of the impeller cover 2 is smaller than that of the chassis 10. The outer diameter of the impeller cover 2 is one third or one half or two thirds of the outer diameter of the chassis 10 according to the processing requirement.
Referring to fig. 1, two small holes 10a are formed in the chassis 10 near the axle hole 11 and symmetrically distributed on two sides of the axle hole 11. The water pressure between the inside and the outside in can effectively balancing impeller operation has the shock attenuation effect. The blades 12 are preferably twisted to reduce blade loading and improve the suction performance and cavitation erosion resistance of the centrifugal pump.
Compared with the open impeller and the semi-open impeller with the same size, the efficiency of the electronic water pump adopting the semi-closed centrifugal water pump impeller of the utility model is improved by 10 percent; compared with the closed water pump impeller with the same size, the noise is reduced by 10 percent. The utility model discloses semi-enclosed impeller is favorable to adopting impeller casing and impeller body components of a whole that can function independently to make processing, when guaranteeing semi-enclosed impeller superior performance, can satisfy injection moulding's condition, can reduce the production degree of difficulty and manufacturing cost.
The above description is only for the purpose of illustration of the preferred embodiments of the present invention, and it is not intended to limit the scope of the present invention, and it is obvious that any person skilled in the art can easily conceive of alterations and modifications to obtain other embodiments based on the above embodiments, and these should be covered by the scope of the present invention.
Claims (5)
1. The utility model provides a semi-closed centrifugal water pump impeller, includes impeller body and impeller casing, its characterized in that:
the impeller body comprises a chassis with a shaft hole in the center and a plurality of blades which are uniformly arranged on the chassis by taking the shaft hole as the center,
the impeller cover is provided with a plurality of welding grooves corresponding to the distribution positions of the blades, the blades are welded in the welding grooves, and the outer diameter of the impeller cover is smaller than that of the chassis.
2. The semi-enclosed centrifugal water pump impeller of claim 1, wherein:
the outer diameter of the impeller cover is one third or one half or two thirds of the outer diameter of the chassis.
3. The semi-enclosed centrifugal water pump impeller of claim 1, wherein:
and a small hole is formed near the shaft hole on the chassis.
4. A semi-enclosed centrifugal water pump impeller according to claim 3, wherein:
the number of the small holes is two, and the small holes are symmetrically distributed on two sides of the shaft hole.
5. The semi-enclosed centrifugal water pump impeller of claim 1, wherein:
the blade is twisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922168952.5U CN211082373U (en) | 2019-12-06 | 2019-12-06 | Semi-closed centrifugal water pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922168952.5U CN211082373U (en) | 2019-12-06 | 2019-12-06 | Semi-closed centrifugal water pump impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211082373U true CN211082373U (en) | 2020-07-24 |
Family
ID=71631367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922168952.5U Expired - Fee Related CN211082373U (en) | 2019-12-06 | 2019-12-06 | Semi-closed centrifugal water pump impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211082373U (en) |
-
2019
- 2019-12-06 CN CN201922168952.5U patent/CN211082373U/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: 20200724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |