CN203670113U - Reinforced type impeller blade - Google Patents
Reinforced type impeller blade Download PDFInfo
- Publication number
- CN203670113U CN203670113U CN201320859155.1U CN201320859155U CN203670113U CN 203670113 U CN203670113 U CN 203670113U CN 201320859155 U CN201320859155 U CN 201320859155U CN 203670113 U CN203670113 U CN 203670113U
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- blade
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- longitudinal wall
- wing
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- Expired - Fee Related
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- Y02E10/722—
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- Wind Motors (AREA)
Abstract
The utility model provides a reinforced type impeller blade, and belongs to the technical field of impeller blades of wind driven generators. The reinforced type impeller blade structurally comprises a blade root section, a blade body section and a blade tip section, wherein the blade root section of the impeller blade is provided with a rainproof ring. A front edge arc plate is arranged in a blade shell of the blade body section of the impeller blade. A front longitudinal wall and a rear longitudinal wall in the wing unfolding direction are arranged in an inner cavity of the blade shell of the blade body section from the front edge to the rear edge. Wing ribs are arranged on the blade body section in the chord length direction and arranged at equal intervals in the wing unfolding direction. The upper end of the front longitudinal wall and the lower end of the front longitudinal wall are respectively fixedly connected with the wing ribs. The upper end of the rear longitudinal wall and the lower end of the rear longitudinal wall are respectively fixedly connected with the wing ribs. A thin wing is arranged on the rear edge of the blade body section. The pneumatic appearance required by the profile of the impeller blade can be well maintained due to the wing ribs of the impeller blade, and the wing ribs well bear centralized loads and support shear flow. A closed box section is formed by the front longitudinal wall, the rear longitudinal wall and the blade shell and bears the torque of the blade. Pneumatic performance of the blade is greatly improved due to the design that the thin wing is arranged on the rear edge of the blade body section.
Description
Technical field
The utility model relates to wind rotor blade of wind generator technical field, specifically a kind of reinforced wind wheel blade.
Background technique
General, the leaf shell structure of wind rotor blade of wind generator is thinner, and the torque load that mainly keeps aerofoil profile and bear blade, is characterized in lightweight, and transport of blades is had relatively high expectations.Because blade inlet edge strength and stiffness are lower, in transportation process, part is easy to damage.This blade integral rigidity is lower simultaneously, and it is larger that running and wind turn the distortion of working procedure Leaf, comes interim if any high wind, wind wheel blade traditionally cannot well be kept out the impact of high wind, otherwise very easily cause blade broken, fracture, cause and cannot normally use, even scrap.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of reinforced wind wheel blade is provided.
The technical solution of the utility model realizes in the following manner, this reinforced wind wheel blade, its structure is that this blade comprises blade root section, leaf body section and blade tip section, the blade root section of blade is provided with rain-retaining ring, in the leaf shell of the Ye Tiduan of blade, be provided with leading edge arc plate, leaf body section leaf shell inner chamber is provided with the front vertical wall along spanwise from leading edge to trailing edge, the vertical wall of rear vertical wall twice, and with chord length direction on be provided with rib, rib arranges along spanwise equi-spaced apart in leaf body section, the upper and lower two ends of front vertical wall are fixedly connected with rib respectively, the upper and lower two ends of rear vertical wall are fixedly connected with rib respectively, leaf body section trailing edge is set to thin wing.
Front vertical wall, rear vertical wall extend to blade root section.
The beneficial effect that the utility model compared with prior art produced is:
The structural feature of the front vertical wall of this reinforced wind wheel blade, rear vertical wall and rib has further been strengthened the rigidity of blade, and add leading edge arc plate in leaf shell leading edge, strengthen on the one hand the transport intensity of blade, strengthen on the other hand the shear strength of blade, made wind wheel blade effectively keep stabilization of speed.
The rib of this reinforced wind wheel blade can be good at maintaining the required aerodynamic configuration of wind wheel blade section, and what rib was good bears concentrated load and supporting shearing flow.Front vertical wall, rear vertical wall and leaf shell composition closed box section are to bear the moment of torsion of blade.The design of leaf body section trailing edge thin wing has strengthened the pneumatic property of blade greatly.
This reinforced wind wheel blade is reasonable in design, simple in structure, safe and reliable, easy to use, be easy to safeguard, has good value for applications.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 3 is structural representations of front vertical wall of the present utility model, rear vertical wall and rib;
Mark in accompanying drawing represents respectively:
1, blade root section, 2, Ye Tiduan, 3, blade tip section, 4, rain-retaining ring, 5, leaf shell, 6, leading edge arc plate, 7, front vertical wall, 8, rear vertical wall, 9, rib, 10, thin wing.
Embodiment
Below in conjunction with accompanying drawing, reinforced wind wheel blade of the present utility model is described in detail below.
As shown in drawings, reinforced wind wheel blade of the present utility model, its structure is that this blade comprises blade root section 1, leaf body section 2 and blade tip section 3, the blade root section 1 of blade is provided with rain-retaining ring 4, in the leaf shell 5 of the leaf body section 2 of blade, be provided with leading edge arc plate 6, leaf body section leaf shell inner chamber is provided with the front vertical wall 7 along spanwise from leading edge to trailing edge, the vertical wall of rear vertical wall 8 twice, and with chord length direction on be provided with rib 9, rib 9 arranges along spanwise equi-spaced apart in leaf body section, front vertical wall is fixedly connected with rib 9 respectively at two ends Shang Xia 7, rear vertical wall is fixedly connected with rib 9 respectively at two ends Shang Xia 8, leaf body section trailing edge is set to thin wing 10.Front vertical wall 7, rear vertical wall 8 extend to blade root section 1.
Claims (2)
1. reinforced wind wheel blade, it is characterized in that this blade comprises blade root section, leaf body section and blade tip section, the blade root section of blade is provided with rain-retaining ring, in the leaf shell of the Ye Tiduan of blade, be provided with leading edge arc plate, leaf body section leaf shell inner chamber is provided with along the front vertical wall of spanwise, the vertical wall of rear vertical wall twice from leading edge to trailing edge, and with chord length direction on be provided with rib, rib arranges along spanwise equi-spaced apart in leaf body section, the upper and lower two ends of front vertical wall are fixedly connected with rib respectively, and the upper and lower two ends of rear vertical wall are fixedly connected with rib respectively; Leaf body section trailing edge is set to thin wing.
2. reinforced wind wheel blade according to claim 1, is characterized in that front vertical wall, rear vertical wall extend to blade root section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859155.1U CN203670113U (en) | 2013-12-24 | 2013-12-24 | Reinforced type impeller blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859155.1U CN203670113U (en) | 2013-12-24 | 2013-12-24 | Reinforced type impeller blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670113U true CN203670113U (en) | 2014-06-25 |
Family
ID=50966418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320859155.1U Expired - Fee Related CN203670113U (en) | 2013-12-24 | 2013-12-24 | Reinforced type impeller blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670113U (en) |
-
2013
- 2013-12-24 CN CN201320859155.1U patent/CN203670113U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141224 |
|
| EXPY | Termination of patent right or utility model |