CN202914388U - Metal centrifugal impeller - Google Patents
Metal centrifugal impeller Download PDFInfo
- Publication number
- CN202914388U CN202914388U CN 201220620509 CN201220620509U CN202914388U CN 202914388 U CN202914388 U CN 202914388U CN 201220620509 CN201220620509 CN 201220620509 CN 201220620509 U CN201220620509 U CN 201220620509U CN 202914388 U CN202914388 U CN 202914388U
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- CN
- China
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- metal
- stiffening rib
- blade
- centrifugal impeller
- metal blade
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Abstract
The utility model relates to the field of ventilation equipment. A metal centrifugal impeller comprises a metal front ring, a metal chassis and a plurality of metal blades fixed between the metal front ring and the metal chassis, each metal blade is provided with a reinforcing rib, the reinforcing ribs and the blades are connected into a whole, the inner end of each reinforcing rid is placed on an air inlet of each metal blade, and the outer end of each reinforcing rid is placed on an air outlet of each metal blade. Each reinforcing rib is composed of an inner part and an outer part, the inner part and the outer part are connected into a whole, a position of each reinforcing rib, placed on the inner part, namely placed on the air inlet, is in an arc shape, the radian of the position is matched with an air inlet area of the top of each metal blade, and a position of each reinforcing rib, placed on the outer pat, is parallel to the metal front ring. The metal centrifugal impeller has the advantages of being novel in structure, reducing thickness of the blades on the condition that the strength of the blades is guaranteed, reducing weight and production cost, and being little in air flow loss and high in energy efficiency.
Description
Technical field
The utility model relates to the ventilation equipment field, relates in particular to the metal centrifugal impeller that uses on a kind of blower fan.
Background technique
Existing metal centrifugal impeller mainly comprises circle, metal chassis before the metal and is fixed between the two multi-disc metal blade, the outside is smooth surface in the metal blade, the deficiency of its existence is that the intensity of blade is low, therefore in order to guarantee that blade has enough intensity and need to adopt thicker blade, cause metal centrifugal impeller Heavy Weight, cost of production is high.
Summary of the invention
The purpose of this utility model is the deficiency that exists in order to solve existing metal centrifugal impeller, and a kind of novel structure is provided, and at the situation decline low blades thickness that guarantees blade strength, and windage loss is few, the metal centrifugal impeller that efficiency is high.
In order to realize above-mentioned purpose, the utility model has adopted following technological scheme:
The metal centrifugal impeller, comprise circle, metal chassis before the metal and be fixed between the two multi-disc metal blade, circle and metal chassis be arranged in parallel before the metal, the metal blade bottom is whole to be connected and fixed with metal chassis, the air-out zone on metal blade top is connected and fixed with the front circle of metal, and the air intake zone on metal blade top is arc line shaped and protruding upward; Described metal blade is provided with the stiffening rib that is connected as a single entity with it, and the inner of stiffening rib is in the intake grill place of metal blade, and the outer end is in the exhaust outlet place of metal blade; Stiffening rib is made of the inside and outside two-part that are connected as a single entity, and the stiffening rib shape that the stiffening rib of interior part namely is in the intake grill place is arc line shaped, the air intake Region Matching on its camber line radian and metal blade top, and the stiffening rib of outer part is parallel with circle before the metal.
As preferably, described stiffening rib is to be arranged above and below and mutually discrete many.
As preferably, the radius of curvature value in the air intake zone on the described metal blade top that is arc line shaped is between 200-260mm; Be the stiffening rib radius of curvature value of interior part of arc line shaped between 200-260mm, meet very much the operation trend of air-flow, windage loss is few, and efficiency is higher.
As preferably, described stiffening rib is to be made of the compacting of part metals blade, and its cross section is circular arc, and is convenient for production and intensity is high.
Adopted the metal centrifugal impeller of above-mentioned technological scheme, circle before the shape of stiffening rib and the shape of metal blade and metal blade and the metal, the installation shape of metal chassis, structure is mated correspondence fully, namely the stiffening rib of outer part is parallel with circle before the metal, the stiffening rib shape that the stiffening rib of interior part namely is in the intake grill place is arc line shaped, assurance stiffening rib and airflow direction one are shown the minimizing windage loss, improve the utilization ratio of metal centrifugal impeller, stiffening rib can improve the intensity of metal blade greatly simultaneously, just can reduce accordingly the thickness of metal blade, reduce weight and the cost of production of metal centrifugal impeller.In sum, the advantage of this metal centrifugal impeller is novel structure, has reduced metal blade thickness in the situation that guarantees the metal blade strength, namely reduced weight and the cost of production of metal centrifugal impeller, and windage loss is few, and efficiency is higher.
Description of drawings
Fig. 1: the cross-sectional view of metal centrifugal impeller among the utility model embodiment.
Embodiment
Below in conjunction with Fig. 1 embodiment of the present utility model is made a detailed explanation.
Metal centrifugal impeller as shown in Figure 1, comprise circle 1, metal chassis 3 before the metal and be fixed between the two multi-disc metal blade 2, circle 1 and metal chassis 3 be arranged in parallel before the metal, metal blade 2 bottoms are whole to be connected and fixed with metal chassis 3, the air-out zone on metal blade 2 tops is connected and fixed with the front circle 1 of metal, and the air intake zone 21 on metal blade 2 tops is arc line shaped and protruding upward.
The radius of curvature value in the air intake zone 21 on the above-mentioned metal blade top that is arc line shaped is the stiffening rib 42 radius of curvature values of interior part of arc line shaped between 200-260mm between 200-260mm, meet very much the operation trend of air-flow.Above-mentioned metal blade 2 is 6-9 sheets.Above-mentioned stiffening rib 4 also can be 1 or 3.
Stiffening rib 4 can improve the intensity of metal blade 2 greatly, can reduce accordingly the used thickness of metal blade, for example do not adopt the metal blade of stiffening rib need to use the thick blade of 2mm, adopt stiffening rib to use later on the thick metal blade of 1.5mm just can reach the intensity of the thick metal blade of original 2mm.The shape of stiffening rib 4 is mated corresponding with shape and the metal blade 2 of metal blade 2 with the front circle 1 of metal, the installation shape of metal chassis 3, structure fully, namely the stiffening rib 41 of outer part is parallel with circle 1 before the metal, the stiffening rib shape that the stiffening rib 42 of interior part namely is in the intake grill place is arc line shaped, assurance stiffening rib 4 is shown the minimizing windage loss with airflow direction one, improves the utilization ratio of metal centrifugal impeller.
Claims (4)
1. metal centrifugal impeller, comprise circle, metal chassis before the metal and be fixed between the two multi-disc metal blade, circle and metal chassis be arranged in parallel before the metal, it is characterized in that metal blade bottom integral body is connected and fixed with metal chassis, the air-out zone on metal blade top is connected and fixed with the front circle of metal, and the air intake zone on metal blade top is arc line shaped and protruding upward; Described metal blade is provided with the stiffening rib that is connected as a single entity with it, and the inner of stiffening rib is in the intake grill place of metal blade, and the outer end is in the exhaust outlet place of metal blade; Stiffening rib is made of the inside and outside two-part that are connected as a single entity, and the stiffening rib shape that the stiffening rib of interior part namely is in the intake grill place is arc line shaped, the air intake Region Matching on its camber line radian and metal blade top, and the stiffening rib of outer part is parallel with circle before the metal.
2. metal centrifugal impeller according to claim 1 is characterized in that described stiffening rib is to be arranged above and below and mutually discrete many.
3. metal centrifugal impeller according to claim 1 is characterized in that the radius of curvature value in air intake zone on the described metal blade top that is arc line shaped is between 200-260mm; Be the stiffening rib radius of curvature value of interior part of arc line shaped between 200-260mm.
4. metal centrifugal impeller according to claim 1 is characterized in that described stiffening rib is to be made of the compacting of part metals blade, and its cross section is circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620509 CN202914388U (en) | 2012-11-20 | 2012-11-20 | Metal centrifugal impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620509 CN202914388U (en) | 2012-11-20 | 2012-11-20 | Metal centrifugal impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914388U true CN202914388U (en) | 2013-05-01 |
Family
ID=48162707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220620509 Expired - Lifetime CN202914388U (en) | 2012-11-20 | 2012-11-20 | Metal centrifugal impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914388U (en) |
-
2012
- 2012-11-20 CN CN 201220620509 patent/CN202914388U/en not_active Expired - Lifetime
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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 |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term |