CN202768480U - Oblique flow fan blade - Google Patents
Oblique flow fan blade Download PDFInfo
- Publication number
- CN202768480U CN202768480U CN201220452024.7U CN201220452024U CN202768480U CN 202768480 U CN202768480 U CN 202768480U CN 201220452024 U CN201220452024 U CN 201220452024U CN 202768480 U CN202768480 U CN 202768480U
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- CN
- China
- Prior art keywords
- blade
- stiffening rib
- wheel disc
- main
- cone hub
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- Expired - Lifetime
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Abstract
The utility model relates to the field of venting equipment, in particular to an oblique flow fan blade which comprises blades integrated in an injection molding mode, a wheel disc, and a cone-shaped hub. The wheel disc is provided with blade reinforced bosses corresponding to the blades in quality and position. The blade reinforced bosses are provided with openings communicated with cavities inside the blades. The wheel disc and the cone-shaped hub is respectively provided with a reinforced rib assembly which comprises a main reinforced rib and two auxiliary reinforced ribs. The oblique flow fan blade has the advantages that the structure is novel and the impact resistance of the fan blade, especially the impact resistance of the wheel disc is high.
Description
Technical field
The utility model relates to the ventilation equipment field, relates in particular to a kind of oblique flow fan blade.
Background technique
Oblique flow fan blade is that centrifugation blade is a kind of, belong to product commonly used in the ventilation equipment field, oblique flow fan blade comprises blade, wheel disc and the cone hub of integrated injection molding, cone hub is in the center of wheel disc, blade is vertically on the card of wheel disc, in order to alleviate the weight of fan blade, cavity is set in the blade, how dried material-saving hole is arranged on the conical surface of cone hub.The deficiency that existing oblique flow fan blade exists is that structure is single, and the impact strength of the fan blade especially impact strength of wheel disc is low.
Summary of the invention
The purpose of this utility model is the defective that exists in order to solve existing oblique flow fan blade, and a kind of novel structure is provided, and the impact strength of fan blade is the oblique flow fan blade excellent in cushion effect of wheel disc especially.
In order to realize above-mentioned purpose, the utility model has adopted following technological scheme:
A kind of oblique flow fan blade, the blade, wheel disc and the cone hub that comprise integrated injection molding, cone hub is in the center of wheel disc, blade one end is connected on the card of wheel disc, cavity is set in the blade, and wheel disc is provided with the blade corresponding with blade quantity and location matches and strengthens boss, and blade and wheel disc front are connected as a single entity, blade strengthen on the back side that boss is in wheel disc and the position corresponding with blade, blade reinforcement boss is provided with the opening that is communicated with cavity in the blade; Described wheel disc and cone hub are provided with the stiffening rib assembly, the stiffening rib assembly comprises a main stiffening rib and two auxiliary stiffening ribs, main stiffening rib is in two blades of arbitrary neighborhood and strengthens between the boss, and the position of main stiffening rib overlaps with the cone hub center of circle to the radius of taking turns plate edge, main stiffening rib outer end is in the edge in the wheel disc outside, main stiffening rib the inner is on the conical surface of cone hub, article two, auxiliary stiffening rib is in respectively the both sides of main stiffening rib, article two, auxiliary stiffening rib the inner is connected as a single entity with main stiffening rib respectively, wherein the outer end of an auxiliary stiffening rib connects the inner of a blade reinforcement boss on main stiffening rib next door, and the outer end of another auxiliary stiffening rib connects the outside of another blade reinforcement boss on main stiffening rib next door.
As preferably, the main stiffening rib length on the described conical surface that is in cone hub is 20%-50% of cone hub conical surface length, can improve the intensity in the cone hub outside.
As preferably, described stiffening rib assembly also comprises the ring stiffener that is in the wheel plate edge, can improve the intensity of wheel plate edge.
Adopted a kind of oblique flow fan blade of above-mentioned technological scheme, the blade, wheel disc and the cone hub that comprise integrated injection molding, wheel disc is provided with the blade corresponding with blade quantity and location matches and strengthens boss, wheel disc and cone hub are provided with the stiffening rib assembly, the stiffening rib assembly comprises a main stiffening rib and two auxiliary stiffening ribs, the impact strength of strengthening impact strength, the especially wheel disc of boss and stiffening rib assembly lifting fan blade by blade can improve 6% at least.The advantage of this oblique flow fan blade is novel structure, and the impact strength of fan blade is wheel disc excellent in cushion effect especially.
Description of drawings
Fig. 1: embodiment's of the present utility model structural representation.
Fig. 2: the schematic representation at the utility model embodiment Leaf back side.
Embodiment
Below in conjunction with accompanying drawing 1 and Fig. 2 embodiment of the present utility model is made a detailed explanation.
A kind of oblique flow fan blade as depicted in figs. 1 and 2, the blade 2, wheel disc 1 and the cone hub 3 that comprise integrated injection molding, cone hub 3 is in the center of wheel disc 1, and blade 2 one ends are connected on the card of wheel disc 1, is provided for alleviating the cavity of fan blade weight in the blade 2.
The quantity of above-mentioned blade reinforcement boss 4 and position are corresponding with blade 2 couplings, generally be between 5-11, it is outwardly with respect to the back side of wheel disc 1 that blade is strengthened boss 4 bottom surfaces, the size of projection is between 1cm-5cm, and the size that blade is strengthened boss 4 end projection is the thickness that blade is strengthened boss 4, and the thickness of itself and main stiffening rib 71, two auxiliary stiffening ribs and ring stiffener 74 is basic identical.
Claims (3)
1. oblique flow fan blade, the blade, wheel disc and the cone hub that comprise integrated injection molding, cone hub is in the center of wheel disc, blade one end is connected on the card of wheel disc, cavity is set in the blade, it is characterized in that wheel disc is provided with the blade corresponding with blade quantity and location matches and strengthens boss, blade and wheel disc front are connected as a single entity, blade strengthen on the back side that boss is in wheel disc and the position corresponding with blade, blade reinforcement boss is provided with the opening that is communicated with cavity in the blade; Described wheel disc and cone hub are provided with the stiffening rib assembly, the stiffening rib assembly comprises a main stiffening rib and two auxiliary stiffening ribs, main stiffening rib is in two blades of arbitrary neighborhood and strengthens between the boss, and the position of main stiffening rib overlaps with the cone hub center of circle to the radius of taking turns plate edge, main stiffening rib outer end is in the edge in the wheel disc outside, main stiffening rib the inner is on the conical surface of cone hub, article two, auxiliary stiffening rib is in respectively the both sides of main stiffening rib, article two, auxiliary stiffening rib the inner is connected as a single entity with main stiffening rib respectively, wherein the outer end of an auxiliary stiffening rib connects the inner of a blade reinforcement boss on main stiffening rib next door, and the outer end of another auxiliary stiffening rib connects the outside of another blade reinforcement boss on main stiffening rib next door.
2. a kind of oblique flow fan blade according to claim 1 is characterized in that the main stiffening rib length on the described conical surface that is in cone hub is 20%-50% of cone hub conical surface length.
3. a kind of oblique flow fan blade according to claim 1 is characterized in that described stiffening rib assembly also comprises the ring stiffener that is in the wheel plate edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220452024.7U CN202768480U (en) | 2012-09-06 | 2012-09-06 | Oblique flow fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220452024.7U CN202768480U (en) | 2012-09-06 | 2012-09-06 | Oblique flow fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768480U true CN202768480U (en) | 2013-03-06 |
Family
ID=47775060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220452024.7U Expired - Lifetime CN202768480U (en) | 2012-09-06 | 2012-09-06 | Oblique flow fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768480U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185028A (en) * | 2013-04-03 | 2013-07-03 | 宁波朗迪叶轮机械有限公司 | Backward-inclined centrifugal fan vane |
| CN103195754A (en) * | 2013-04-03 | 2013-07-10 | 宁波朗迪叶轮机械有限公司 | Inclined-flow centrifugal impeller |
-
2012
- 2012-09-06 CN CN201220452024.7U patent/CN202768480U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185028A (en) * | 2013-04-03 | 2013-07-03 | 宁波朗迪叶轮机械有限公司 | Backward-inclined centrifugal fan vane |
| CN103195754A (en) * | 2013-04-03 | 2013-07-10 | 宁波朗迪叶轮机械有限公司 | Inclined-flow centrifugal impeller |
| CN103195754B (en) * | 2013-04-03 | 2015-11-25 | 武汉朗迪叶轮机械有限公司 | Inclined-flow centrifugal impeller |
| CN103185028B (en) * | 2013-04-03 | 2016-02-24 | 宁波朗迪叶轮机械有限公司 | A kind of BI centrifugation blade |
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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: 20130306 |