CN208057507U - High-strength combination formula axial-flow fan blade - Google Patents
High-strength combination formula axial-flow fan blade Download PDFInfo
- Publication number
- CN208057507U CN208057507U CN201820462591.8U CN201820462591U CN208057507U CN 208057507 U CN208057507 U CN 208057507U CN 201820462591 U CN201820462591 U CN 201820462591U CN 208057507 U CN208057507 U CN 208057507U
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- plate
- internal box
- fixedly connected
- left socle
- right support
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Abstract
The utility model is related to axial flow blower technical fields,It refer to specifically a kind of high-strength combination formula axial-flow fan blade,Including braced frame and blade covering,It is characterized in that the braced frame is by internal box holder,Outer container body support frame,Connector and petiole shaft composition,Internal box holder includes internal box and internal box casing,Internal box includes upper plate,Lower plate,Left plate and right plate,Internal box casing is fixedly connected with upper plate and lower plate,Internal box internal surface of sleeve pipe top is equipped with connection internal thread,Outer container body support frame is by left socle plate,Right support plate and holder bottom plate composition,Left socle plate top is fixedly connected through bolt with left plate,Right support plate top is fixedly connected through bolt with right plate,Connector one end is threadedly coupled with petiole shaft,The other end is connect with internal box casing threads,The inner wall of blade covering is fixedly connected with outer container body support frame,The utility model rigidity of structure is high,It is easy for assemble or unload,Wind turbine overall noise can be substantially reduced.
Description
Technical field
The utility model is related to axial flow blower technical fields, refer to specifically a kind of high-strength combination formula axial flow blower leaf
Piece.
Background technology
Fan blade is the important component of wind power plant, and purposes is to capture wind energy by fan blade, from
And mechanical rotation is driven, it produces electricl energy, fan blade includes skeleton and the blade covering that is covered on the outside of skeleton, currently, existing
Axis stream covering type axial-flow fan blade mostly use skeleton riveting or welded structure, skeleton riveted structure manufacture craft is simple,
Using more on the axial flow blower of narrow blade, riveting covering is suitable for the relatively simple blade of blade global shape, for
Super-low noise type blade, blade itself belong to sweepforward distortion molded breadth blade, and riveted structure cannot be guaranteed covering and the good patch of skeleton
It closes, covering will produce additional metallic noise under the influence of fluctuations of wind pressure, increase wind turbine overall noise, Chinese patent
CN206000691U discloses a kind of fan blade comprising skeleton and the blade covering being covered on the outside of skeleton, blade covering
The predeterminable area of inside be provided with stiffener, stiffener is used to increase the rigidity of blade covering, which passes through
Stiffener is added, to reduce the security risk of complete machine operation, the major accident that may occur is avoided, improves blade and cover
The case where skin unstability, buckling, if stiffener, using riveting, covering under the influence of fluctuations of wind pressure, will produce additionally
Metallic noise, increase wind turbine overall noise, if stiffener uses welding manner, because of stiffener in the utility model
It is an entirety, stiffener is directly welded with covering, and structural strength is not high, of high cost, welding is inconvenient, is susceptible to scarce
It welds, the place of solder skip.
Invention content
Utility model aims to solve the deficiencies in the prior art, provide that a kind of rigidity of structure is high, installing and dismounting side
Just it, easily welds, production efficiency is high, high-strength combination formula axial flow blower leaf at low cost, can substantially reducing wind turbine overall noise
Piece.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of high-strength combination formula axial-flow fan blade, including braced frame and blade covering, it is characterised in that the branch
Support frame frame is made of internal box holder, outer container body support frame, connector and petiole shaft, and the internal box holder includes internal box and interior
Babinet casing, the trapezoidal shape of internal box, internal box include upper plate, lower plate, left plate and right plate, the left plate
Both ends are fixedly connected with upper plate and lower plate respectively, and the right plate both ends are fixedly connected with upper plate and lower plate respectively,
It is equipped with bolt mounting holes, the centre of the upper plate and the centre of lower plate point with being respectively separated on the left plate and right plate
Not She You through-hole, the internal box sleeve upper end passes through the through-hole of upper plate to be fixedly connected with upper plate, and lower end is across lower plate
Through-hole be fixedly connected with lower plate, internal box internal surface of sleeve pipe top be equipped with connection internal thread, the outer container body support frame be in U
Type, outer container body support frame are made of left socle plate, right support plate and holder bottom plate, left socle plate lower end and right support plate lower end
It is fixedly connected respectively with holder bottom plate both ends, the left socle plate and right support plate top compartment of terrain are respectively equipped with support bracket bolt
Hole, left socle plate top are fixedly connected through bolt with left plate, and right support plate top is fixedly connected through bolt with right plate,
In favor of the trapezoidal enhancing braced frame of internal box holder nesting outer case group case in pairs, the entirety of blade support is substantially increased
Strength and stiffness, and internal box holder it is nested with outer container body support frame after length can be adjusted according to the length of blade covering
Whole, described petiole shaft one end inner wall is equipped with petiole internal thread, and the connector outer wall is equipped with screw thread, connector one end and petiole shaft
It is threadedly coupled, the other end is connect with internal box casing threads, in favor of the quick disassembly and installation of internal box holder, improves production
Efficiency reduces production installation cost, and the blade covering is sleeved on outer container body support frame and internal box holder, blade covering it is interior
Wall is fixedly connected with left socle plate both sides, right support plate both sides and holder bottom plate both sides.
Left socle plate, right support plate and holder bottom plate described in the utility model are in groove-like, the left socle plate two respectively
Side, right support plate both sides and holder bottom plate both sides are respectively equipped with fixed plate, on the left socle plate, right support plate and holder bottom plate
Fixed plate be welded and fixed respectively with blade covering inner wall, in favor of the good fit of outer container body support frame and blade covering, reduce
Wind turbine overall noise.
Lightening hole is equipped with being respectively separated on left socle plate described in the utility model, right support plate and holder bottom plate, with profit
In further loss of weight.
Connector described in the utility model is in hollow shape, in favor of further loss of weight.
The utility model is due to using the above structure, having high, easy for assemble or unload, the easy welding of the rigidity of structure, production effect
Rate is high, it is at low cost, the advantages that wind turbine overall noise can be substantially reduced.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the utility model.
Fig. 2 is a kind of structural schematic diagram that the utility model removes blade covering.
Fig. 3 is the A-A sectional views in the utility model Fig. 2.
Fig. 4 is a kind of structural schematic diagram of internal box holder in the utility model.
Specific implementation mode
The utility model is illustrated with reference to the accompanying drawings and examples.
A kind of high-strength combination formula axial-flow fan blade, including braced frame 1 and blade covering 2, it is characterised in that described
Braced frame 1 is made of internal box holder 3, outer container body support frame 4, connector 5 and petiole shaft 6, and the internal box holder 3 includes interior
Babinet 7 and internal box casing 8,7 trapezoidal shape of the internal box, internal box 7 include upper plate 9, lower plate 10,11 and of left plate
Right plate 12,11 both ends of the left plate are fixedly connected with upper plate 9 and lower plate 10 respectively, 12 both ends of right plate difference
It is fixedly connected with upper plate 9 and lower plate 10, is equipped with bolt mounting holes with being respectively separated on the left plate 11 and right plate 12
13, the centre of the upper plate 9 and the centre of lower plate 10 are respectively equipped with through-hole, and 8 upper end of internal box casing passes through upper bottom
The through-hole of plate 9 is fixedly connected with upper plate 9, and lower end passes through the through-hole of lower plate 10 to be fixedly connected with lower plate 10, the interior case
8 upper inside wall of body casing is equipped with connection internal thread, and the outer container body support frame 4 is U-shaped, and outer container body support frame 4 is by left socle plate 14, the right side
Supporting plate 15 and holder bottom plate 16 form, and the left socle plate 14, right support plate 15 and holder bottom plate 16 are in groove-like, institute respectively
The fixed plate 17 that 14 both sides of left socle plate, 15 both sides of right support plate and 16 both sides of holder bottom plate are respectively equipped with strip is stated, it is described
14 lower end of left socle plate and 15 lower end of right support plate are fixedly connected with 16 both ends of holder bottom plate respectively, the left socle plate 14, the right side
It is equipped with lightening hole 18, in favor of further loss of weight, the left socle plate 14 with being respectively separated on supporting plate 16 and holder bottom plate 15
With bracket bolt holes are respectively equipped on right support plate 15,14 top of left socle plate is fixedly connected through bolt with left plate 11,
15 top of right support plate is fixedly connected through bolt with right plate 12, and left plate and right plate are placed in left socle plate inside and right support
On the inside of plate, in favor of the trapezoidal enhancing braced frame of internal box holder nesting outer case group case in pairs, blade branch is substantially increased
The integral strength and rigidity of support, and by adjusting bolt mounting holes and left socle plate and right support plate on left plate and right plate
The relative position of upper bracket bolt hole, bolt mounting holes and bracket bolt holes consolidate internal box and outer container body support frame to bolt successively
Fixed, the length after thus internal box holder is nested with outer container body support frame can be adjusted according to the length of blade covering, the leaf
Arbor 6 be in hollow shape, 6 one end inner wall of petiole shaft be equipped with petiole internal thread, the connector 5 be in hollow bushing-like, in favor of into
One step loss of weight, 5 outer wall of connector are equipped with screw thread, and 5 one end of connector is threadedly coupled with petiole shaft 6, the other end and internal box casing 8
It is threadedly coupled, in favor of the quick disassembly and installation of internal box holder, improves production efficiency, reduce production installation cost, institute
It states blade covering 2 to be sleeved on outer container body support frame 4 and internal box holder 3, the blade covering 2 and left socle plate 14, right support plate
15 and holder bottom plate 16 on fixed plate fixation is respectively welded, in favor of the good fit of outer container body support frame and blade covering, drop
Low wind turbine overall noise.
Outer container body support frame in the preparation, is placed on the inside of blade covering, is then welded by the utility model first, will be left
The fixed plate of the fixed plate of supporting plate both sides, the fixed plate of right support plate both sides and holder bottom plate both sides respectively in blade covering
Wall fitting is fixed, and then internal box branch is placed on the inside of outer case holder, by bolt by the left plate of internal box both sides and
Right plate is fixedly connected with the left socle plate of outer container body support frame both sides and right support plate, can be adjusted according to the length of blade covering
Internal box holder connected with outer container body support frame after length, then pass through the internal box set on connector one end and internal box holder
Pipe is bolted, and one end of the other end and petiole shaft is bolted, and is finally fixed the other end of petiole shaft and impeller hub and is connected
Connect, in use, if any any problem, can by unscrew connector, by internal box holder and outer container body support frame it
Between bolt dismantle, checked, in the utility model petiole shaft, connector, internal box casing be in hollow shape, outer case branch
It is equipped at intervals with lightening hole on frame, plays the purpose of further loss of weight, is bolted, convenient for disassembly and assembly, mounting process is simple, significantly
Production efficiency is improved, while internal box holder and outer container body support frame constitute double trapezoid enhancing braced frame, greatly increase
The integral strength and rigidity of blade support.
The utility model is due to using the above structure, having high, easy for assemble or unload, the easy welding of the rigidity of structure, production effect
Rate is high, it is at low cost, the advantages that wind turbine overall noise can be substantially reduced.
Claims (5)
1. a kind of high-strength combination formula axial-flow fan blade, including braced frame and blade covering, it is characterised in that the support
Frame is made of internal box holder, outer container body support frame, connector and petiole shaft, and the internal box holder includes internal box and interior case
Body casing, the trapezoidal shape of internal box, internal box include upper plate, lower plate, left plate and right plate, the left plate two
End is fixedly connected with upper plate and lower plate respectively, and the right plate both ends are fixedly connected with upper plate and lower plate respectively, institute
It states be equipped with bolt mounting holes with being respectively separated on left plate and right plate, the centre of the upper plate and the intermediate difference of lower plate
Equipped with through-hole, the internal box sleeve upper end passes through the through-hole of upper plate to be fixedly connected with upper plate, and lower end passes through lower plate
Through-hole is fixedly connected with lower plate, and internal box internal surface of sleeve pipe top is equipped with connection internal thread, and the outer container body support frame is in U
Type, outer container body support frame are made of left socle plate, right support plate and holder bottom plate, left socle plate lower end and right support plate lower end
It is fixedly connected respectively with holder bottom plate both ends, the left socle plate and right support plate top compartment of terrain are respectively equipped with support bracket bolt
Hole, left socle plate top are fixedly connected through bolt with left plate, and right support plate top is fixedly connected through bolt with right plate,
Described petiole shaft one end inner wall is equipped with petiole internal thread, and the connector outer wall is equipped with screw thread, connector one end and petiole shaft spiral shell
Line connects, and the other end is connect with internal box casing threads, and the blade covering is sleeved on outer container body support frame and internal box holder, leaf
The inner wall of piece covering is fixedly connected with left socle plate both sides, right support plate both sides and holder bottom plate both sides.
2. a kind of high-strength combination formula axial-flow fan blade according to claim 1, it is characterised in that the left socle plate,
Right support plate and holder bottom plate are in groove-like, left socle plate both sides, right support plate both sides and holder bottom plate both sides point respectively
Not She You fixed plate, the fixed plate on the left socle plate, right support plate and holder bottom plate welds with blade covering inner wall respectively
It is fixed.
3. a kind of high-strength combination formula axial-flow fan blade according to claim 2, it is characterised in that the left socle plate,
It is equipped with lightening hole with being respectively separated on right support plate and holder bottom plate.
4. a kind of high-strength combination formula axial-flow fan blade according to claim 3, it is characterised in that the connector is in
Hollow shape.
5. a kind of high-strength combination formula axial-flow fan blade according to claim 4, it is characterised in that the petiole shaft is in
Hollow shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820462591.8U CN208057507U (en) | 2018-04-03 | 2018-04-03 | High-strength combination formula axial-flow fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820462591.8U CN208057507U (en) | 2018-04-03 | 2018-04-03 | High-strength combination formula axial-flow fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057507U true CN208057507U (en) | 2018-11-06 |
Family
ID=63987636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820462591.8U Active CN208057507U (en) | 2018-04-03 | 2018-04-03 | High-strength combination formula axial-flow fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057507U (en) |
-
2018
- 2018-04-03 CN CN201820462591.8U patent/CN208057507U/en active Active
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