CN202914382U - Metal centrifugal impeller - Google Patents
Metal centrifugal impeller Download PDFInfo
- Publication number
- CN202914382U CN202914382U CN 201220620211 CN201220620211U CN202914382U CN 202914382 U CN202914382 U CN 202914382U CN 201220620211 CN201220620211 CN 201220620211 CN 201220620211 U CN201220620211 U CN 201220620211U CN 202914382 U CN202914382 U CN 202914382U
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- CN
- China
- Prior art keywords
- metal
- centrifugal impeller
- blade
- stiffening rib
- reinforcing ribs
- 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 - Lifetime
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Abstract
The utility model relates to the field of ventilating equipment, and discloses a metal centrifugal impeller. The metal centrifugal impeller comprises a metal front ring, a metal base plate and metal blades fixed between the metal front ring and the metal base plate. The number of the metal blades is 6-9. The metal front ring is arranged parallel to the metal base plate. Reinforcing ribs connected with the metal blades as a whole are arranged on the metal blades. The reinforcing ribs are formed by part of pressed metal blades. A cross section of each reinforcing rib is arc-shaped, and namely, the back faces of the positions, corresponding to the reinforcing ribs, on the metal blades are grooves with a cross section arc-shaped. The reinforcing ribs are arrayed vertically and not connected with one another. The number of the reinforcing ribs is plural. The metal centrifugal impeller has the advantages of being novel in structure and reduced in blade thickness on the condition that the blade strength is guaranteed, and namely, the weight of the metal centrifugal impeller is reduced, and production cost is lowered.
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 reduces the metal centrifugal impeller of metal blade thickness in the situation that guarantees the metal blade strength.
In order to realize above-mentioned purpose, the utility model has adopted following technological scheme:
A kind of metal centrifugal impeller, comprise circle, metal chassis before the metal and be fixed between the two metal blade, metal blade is the 6-9 sheet, circle and metal chassis be arranged in parallel before the metal, described metal blade is provided with the stiffening rib that is connected as a single entity with it, stiffening rib be by part metals blade compacting consist of and its cross section curved, namely the back side at corresponding stiffening rib place is the curved groove in cross section on the metal blade, stiffening rib is to be arranged above and below and mutually discrete many.
As preferably, the outer end of described stiffening rib is in the exhaust outlet place of metal blade, and the inner is in the intake grill place of metal blade, guarantees that stiffening rib and airflow direction one show the minimizing windage loss, the utilization ratio of raising metal centrifugal impeller.
As preferably, the described stiffening rib that is arranged above and below is 2 or 3, and stiffening rib quantity is too much produced inconvenience and also not obvious to the effect that improves blade strength.
Adopted a kind of metal centrifugal impeller of above-mentioned technological scheme, the intensity of the raising metal blade that stiffening rib is passable, the corresponding used thickness that just can reduce metal blade.The advantage of this metal centrifugal impeller is novel structure, has reduced metal blade thickness in the situation that guarantees the metal blade strength, has namely reduced weight and the cost of production of metal centrifugal impeller.
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.
A kind of metal centrifugal impeller as shown in Figure 1 comprises circle 1, metal chassis 3 before the metal and is fixed between the two multi-disc metal blade 2 that circle 1 and metal chassis 3 be arranged in parallel before the metal, and metal blade 2 is 6-9 sheets.
The outer end of stiffening rib 4 is in the exhaust outlet place of metal blade 2, and the inner is in the intake grill place of metal blade 2, and assurance stiffening rib 4 is shown the minimizing windage loss with airflow direction one, improves the utilization ratio of metal centrifugal impeller.The above-mentioned stiffening rib that is arranged above and below 4 also can be 3.
Stiffening rib 4 can improve the intensity of metal blade 2, 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.
Claims (3)
1. metal centrifugal impeller, comprise circle, metal chassis before the metal and be fixed between the two metal blade, metal blade is the 6-9 sheet, circle and metal chassis be arranged in parallel before the metal, it is characterized in that described metal blade is provided with the stiffening rib that is connected as a single entity with it, stiffening rib be by part metals blade compacting consist of and its cross section curved, namely the back side at corresponding stiffening rib place is the curved groove in cross section on the metal blade, stiffening rib is to be arranged above and below and mutually discrete many.
2. a kind of metal centrifugal impeller according to claim 1 is characterized in that the outer end of stiffening rib is in the exhaust outlet place of metal blade, and the inner is in the intake grill place of metal blade.
3. a kind of metal centrifugal impeller according to claim 1 is characterized in that the described stiffening rib that is arranged above and below is 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620211 CN202914382U (en) | 2012-11-20 | 2012-11-20 | Metal centrifugal impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220620211 CN202914382U (en) | 2012-11-20 | 2012-11-20 | Metal centrifugal impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914382U true CN202914382U (en) | 2013-05-01 |
Family
ID=48162701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220620211 Expired - Lifetime CN202914382U (en) | 2012-11-20 | 2012-11-20 | Metal centrifugal impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914382U (en) |
-
2012
- 2012-11-20 CN CN 201220620211 patent/CN202914382U/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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |