CN202768479U - Inclined flow fan blade - Google Patents
Inclined flow fan blade Download PDFInfo
- Publication number
- CN202768479U CN202768479U CN201220452023.2U CN201220452023U CN202768479U CN 202768479 U CN202768479 U CN 202768479U CN 201220452023 U CN201220452023 U CN 201220452023U CN 202768479 U CN202768479 U CN 202768479U
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- blade
- wheel disc
- boss
- flow fan
- blades
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Abstract
The utility model relates to the field of ventilating devices. An inclined flow fan blade comprises blades, a wheel disc and a cone-shaped hub, wherein the blades are formed in an integrated mode, the cone-shaped hub is placed at the center of the wheel disc, one ends of the blades are connected with the disc surface of the wheel disc, and cavities are installed inside the blades. The wheel disc is provided with blade reinforcing protruded platforms which are matched with and correspond to the blades in quantity and position, the blades are connected with the front surface of the wheel disc into a whole, the blade reinforcing protruded platforms are placed on the back of the wheel disc, the positions of the blade reinforcing protruded platforms correspond to the blades, the blade reinforcing protruded platforms are provided with openings communicated with the cavities inside the blades, and the edge of the wheel disc is provided with an annular reinforcing assembly. The inclined flow fan blade has the advantages that structure is novel, impact-resistant strength of the fan blade is high, and particularly, impact-resistant strength 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 a kind of in the centrifugation blade, it is ventilation equipment field product commonly used, 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:
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; The edge of described wheel disc is provided with the ring stiffener assembly.
As preferably, described ring stiffener assembly comprises two groups of parallel ring stiffeners, two groups of parallel ring stiffeners are all strengthened boss with blade and are connected as a single entity, and blade strengthens the boss outer end and link to each other with the ring stiffener in the outside, and the impact strength of wheel disc can improve 2% at least again.
Further, described arbitrary neighborhood blade strengthens also arranging between the boss wheel disc stiffening rib of adjacent two blades being strengthened the boss connection, wheel disc stiffening rib outer end is connected as a single entity with the ring stiffener of inboard, wheel disc stiffening rib the inner is on the cone hub, can also improve the impact strength in the cone hub outside on the basis of the impact strength that improves wheel disc.Further, the wheel disc stiffening rib length on the described cone hub is 20%-50% of cone hub conical surface length, the impact strength in the raising cone hub outside that can be best.
Adopted the 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, the edge of wheel disc is provided with the ring stiffener assembly, the structure of strengthening boss and ring stiffener assembly by blade can make the impact strength of fan blade improve, and especially the impact strength of wheel disc can improve at least 5%.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 diagram 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.
Oblique flow fan blade as depicted in figs. 1 and 2 comprises blade 2, wheel disc 1 and the cone hub 3 of integrated injection molding, and 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, the blade 2 interior cavitys that arrange.
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 ring stiffener assembly 7 is basic identical.
Claims (4)
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; The edge of described wheel disc is provided with the ring stiffener assembly.
2. oblique flow fan blade according to claim 1, it is characterized in that described ring stiffener assembly comprises two groups of parallel ring stiffeners, two groups of parallel ring stiffeners are all strengthened boss with blade and are connected as a single entity, and blade reinforcement boss outer end links to each other with the ring stiffener in the outside.
3. oblique flow fan blade according to claim 2, it is characterized in that also arranging between the described arbitrary neighborhood blade reinforcement boss adjacent two blades are strengthened the wheel disc stiffening rib that boss connects, wheel disc stiffening rib outer end is connected as a single entity with the ring stiffener of inboard, and wheel disc stiffening rib the inner is on the cone hub.
4. oblique flow fan blade according to claim 3 is characterized in that the wheel disc stiffening rib length on the described cone hub is 20%-50% of cone hub conical surface length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220452023.2U CN202768479U (en) | 2012-09-06 | 2012-09-06 | Inclined flow fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220452023.2U CN202768479U (en) | 2012-09-06 | 2012-09-06 | Inclined flow fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202768479U true CN202768479U (en) | 2013-03-06 |
Family
ID=47775059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220452023.2U Expired - Lifetime CN202768479U (en) | 2012-09-06 | 2012-09-06 | Inclined flow fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202768479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034587A (en) * | 2021-11-10 | 2022-02-11 | 中国航发湖南动力机械研究所 | Simulation disc for low-cycle fatigue test of turbine working blade |
-
2012
- 2012-09-06 CN CN201220452023.2U patent/CN202768479U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114034587A (en) * | 2021-11-10 | 2022-02-11 | 中国航发湖南动力机械研究所 | Simulation disc for low-cycle fatigue test of turbine working 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 |