CN106609726B - Insert for blade, blade and wind generating set - Google Patents
Insert for blade, blade and wind generating set Download PDFInfo
- Publication number
- CN106609726B CN106609726B CN201611186130.4A CN201611186130A CN106609726B CN 106609726 B CN106609726 B CN 106609726B CN 201611186130 A CN201611186130 A CN 201611186130A CN 106609726 B CN106609726 B CN 106609726B
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- China
- Prior art keywords
- blade
- abaculus
- interconnecting piece
- root
- installation base
- Prior art date
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- 238000003780 insertion Methods 0.000 claims description 47
- 230000037431 insertion Effects 0.000 claims description 47
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- 238000005553 drilling Methods 0.000 description 2
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- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention provides an insert block for a blade, the blade and a wind generating set. The insert for a blade comprises: a connecting portion having a connecting hole; embedding portion, embedding portion are connected with connecting portion, and embedding portion is protruding including installation base member and embedding, and the embedding is protruding to be fixed on the installation base member, and along the radial extension of blade root, or extend along the first direction, and the first direction has first contained angle with the radial of blade root. The insert block for the blade can avoid the increase of extra thickness of the blade root and reduce the weight of the blade.
Description
Technical field
The present invention relates to field of wind power equipment more particularly to a kind of blade abaculus, blade and wind power generating set.
Background technique
The history for making a general survey of wind power generating set, it is a kind of firm to develop that many effort have been carried out, compact and cheap
Blade abaculus.It is difficult to effectively to answer fiberglass/resin, wood-fibred/resin or carbon fiber/resin with reliable way
Structure is closed to be fixed on metal wheel hub.
The blade that industry uses at present belongs to one of two types with abaculus structure and installation method.
The first kind, the surface for putting type joint (so-called T connector) and Second Type are (so-called pre-buried to surface type joint
Casing).
For the T connector of standard, the minimum diameter of nut is determined by following requirements:
1, reach is engaged；
2, nut strength；
3, the crush resistance in the hole in blade construction；
4, after blade drilling remaining total cross sectional area intensity, including stress concentration factor.
In general, the first two requires to meet by the nut of medium size, however, third standard needs major diameter
Nut.The problem is processed in the patent of 2,012 168990 A1 of WO.Finally, in order to meet the 4th requirement, blade root
Thickness increases.Such as 202851266 U of patent CN, the scheme of US 2014/0169980A1.This causes the weight of blade to increase, from
And reduce the efficiency of entire wind power generating set.With the increase of the vane size and load, need to increase blade root thickness, or
Person carries out nut checkerboard type layout.
For having the connector of pre- tubing, the size of casing is mainly determined by following factors:
1, reach is engaged；
2, casing strength；
3, the intensity of the bonding between casing and other blade constructions (adhesive)；
4, the gross area intensity of casing pre-installation rear blade remaining cross-section, including the factor of stress concentration.
In general, the first two requires to meet by the nut of medium size.However, third requires needs long
Casing.Meanwhile the edge effect (stress concentration) generated at mating surface, it is difficult to ensure that from fiber-reinforced polymer structure
To the Load Balanced distribution of the metal structure of casing, the casing using complicated shape is needed thus finally, in order to meet the 4th
It is required that blade root thickness needs to increase, leaf weight is caused to increase, reduces the efficiency of entire blower.Moreover, with blade dimensions
It with the increase of load, needs to be promoted blade root thickness, or using the sleeve arrangement mode for comparing load, increases many costs,
Leaf weight also increases much.
The further development of the connector of pre- tubing is as disclosed in WO 2006/070171A1, wherein introducing complicated shape
The pre- tubing of (similar ice cream shape).The effect of the total shape and additional interlocking structure that are further described be make it is each
Fastener obtains more many areas and uses more large area in load transmittance process, therefore, still uses blade root and casing knot
Shearing at conjunction is as basic load transfer mode.The major defect of the invention is, since the preferable shape of casing is not flat
Smooth, therefore, blade root needs to keep the same thickness or bigger thickness as T connector, leads to relatively high blade weight
Amount.Layered structure therein also needs to increase additional weight.Finally, this joint style does not allow using with high flexibility value
Length, the bolt with high fatigue life.
Above-mentioned problem promotes inventor to constantly search for better scheme.However, all schemes in the prior art are all
There is same difficulty, such as fiber is damaged or bond length is excessive.
The main purpose of patent WO2011/035548 is to reduce blade root by introducing the wedge structure being integrated on blade
Thickness.This structure can be regarded as a kind of face to the combination in face, have the shortcomings that the combination of this type, such as by
The stress of the low weight efficiency caused by the low shear strength of binder, binder edge is concentrated, and metal is caused with plastic bonding
The problem of etc..
The main purpose of patent CN 103511191A is the thickness for reducing blade root by removing decannulation within a fitting.This
It is T connector that kind structure, which can be regarded as, has the shortcomings that whole possessed by T connector.Such as, the fiber of fibre reinforced materials is complete
Whole property is destroyed, the high stress concentrations etc. of bolt introduce region.In addition, such structure cannot replace bolt in use,
So that blade root fastenings structure height is ineffectiveness.
Summary of the invention
The embodiment of the present invention provides a kind of blade abaculus, blade and wind power generating set, pre- to solve existing blade root
It buries bolt sleeve and needs additional the problem of increasing blade root thickness.
In order to achieve the above objectives, the embodiment of the present invention provides a kind of blade abaculus comprising: interconnecting piece, interconnecting piece
With connecting hole；Embedded division, embedded division are connect with interconnecting piece, and embedded division includes installation base body and insertion protrusion, and it is solid to be embedded in protrusion
It is scheduled in installation base body, and radially extending along blade root, or extends in a first direction, the radial direction of first direction and blade root has the
One angle.
Further, along the direction far from interconnecting piece, the thickness of the installation base body of embedded division is gradually reduced.
Further, insertion protrusion is provided at least one opposite side of installation base body.
Further, along the direction far from installation base body, the cross-sectional area for being embedded in protrusion is gradually reduced.
Further, multiple insertion protrusions, Duo Geqian are provided on a side of installation base body or on two sides
Enter protrusion and is spaced setting in installation base body.
Further, the first end of interconnecting piece is arranged in embedded division；Or interconnecting piece is cylinder, embedded division is two and one by one
It is arranged in correspondence with the opposite sides radially in interconnecting piece；Or interconnecting piece is cylinder, the first of interconnecting piece is arranged in embedded division
End and opposite sides radially.
Further, connecting hole is threaded hole.
According to another aspect of the present invention, a kind of blade is provided comprising blade root and the blade abaculus with blade root fastenings,
Blade abaculus is above-mentioned blade abaculus, and at least embedded division of blade abaculus is arranged in blade root.
Further, blade abaculus is multiple, and being provided at circumferentially spaced along blade root.
Further, blade further includes two or more blade sections, length of at least part blade sections along blade
Degree direction is sequentially connected；And/or at least part blade sections are sequentially connected along the width of blade.
According to another aspect of the present invention, a kind of blade is provided, the blade includes two or more blade sections,
The part of one or two of adjacent blade sections blade sections docking is provided with blade abaculus, and the blade abaculus is upper
The blade abaculus stated.
Further, the blade abaculus is multiple, and is arranged along the partially circumferentially interval of blade sections docking.
According to another aspect of the present invention, a kind of wind power generating set is provided comprising blade, blade are above-mentioned leaf
Piece.
The blade abaculus of the embodiment of the present invention includes interconnecting piece and embedded division, and embedded division is for being embedded in wind-driven generator
In the blade root of group, cooperate transmitting load with blade root, interconnecting piece enables blade to connect with wheel hub for connecting double threaded screw.By
There are multiple insertion protrusions in embedded division, load transmission is carried out by being embedded in protrusion and installation base body, when load is transmitted, due to embedding
The radial direction for entering protrusion along blade root extends, therefore loads compression and stretching by insertion protrusion to transmit, so that carrying energy
Power is more preferable.Since load transfer is smooth gradually transfer, break inactivation situation will not occur, it is not necessary to increase root of blade
Thickness, therefore leaf weight is reduced, to improve vane efficiency, and reduce the blade and wheel hub of wind power generating set
Between connection weight.
Detailed description of the invention
Fig. 1 is the schematic perspective view at the first visual angle of the first blade abaculus of the embodiment of the present invention；
Fig. 2 is the schematic perspective view at the second visual angle of the first blade abaculus of the embodiment of the present invention；
Fig. 3 is the schematic perspective view at the third visual angle of the first blade abaculus of the embodiment of the present invention；
Fig. 4 is the schematic perspective view of second of blade abaculus of the embodiment of the present invention；
Fig. 5 is the schematic perspective view of the third blade abaculus of the embodiment of the present invention；
Fig. 6 is the blade root of the embodiment of the present invention and the schematic cross-sectional view of blade abaculus cooperation；
Fig. 7 is the schematic perspective view at the blade root of the blade of the embodiment of the present invention；
Fig. 8 is the structural schematic diagram at the blade root of the blade of the embodiment of the present invention.
Description of symbols:
10, interconnecting piece；11, connecting hole；20, embedded division；21, installation base body；22, insertion protrusion；30, blade root；40, transition
Structure；50, double threaded screw.
Specific embodiment
The blade of embodiment of the present invention abaculus, blade and wind power generating set are retouched in detail with reference to the accompanying drawing
It states.
As shown in Figure 1 to Figure 3, according to an embodiment of the invention, blade abaculus includes interconnecting piece 10 and embedded division 20, connect
Socket part 10 has connecting hole 11；Embedded division 20 is connect with interconnecting piece 10, and embedded division 20 includes installation base body 21 and insertion protrusion 22,
Insertion protrusion 22 is fixed in installation base body 21, and radially extending along blade root 30, or is extended in a first direction, first direction with
The radial direction of blade root 30 has the first angle.The embedded division 20 of the blade abaculus is used to cooperate with blade root 30, is embedded in blade root 30
Fiber-reinforced layer in.Interconnecting piece 10 is in 30 outside of blade root, for installing stud.When load transmitting, due to insertion protrusion 22
Extend or extend in a first direction along the radial direction of blade root 30, therefore loads compression and stretching by insertion protrusion 22 to pass
It passs, so that bearing capacity is more preferable.Since load transfer is smooth gradually transfer, break inactivation situation will not occur, no
Root of blade thickness must be increased, therefore reduce leaf weight, to improve vane efficiency, and reduce wind-driven generator
Connection weight between the blade and wheel hub of group.
The value of the first angle between first direction and the radial direction of blade root 30 can according to need as arbitrary value, preferably
Ground, the value of the first angle is greater than 0 ° and less than 180 °, and is not equal to 90 °.
The material of interconnecting piece 10 and embedded division 20 can according to need determination, preferably metal or steel construction.Embedded division 20
It can be determined according to specific requirements with the positional relationship of interconnecting piece 10.As shown in Figure 1 to Figure 3, embedded division 20 is arranged in interconnecting piece
10 first end, connecting hole 11 are recessed inwardly by the second end opposite with first end of interconnecting piece 10 and are formed.
As shown in figure 4, interconnecting piece 10 be cylinder (cross-sectional area of the cylinder can be round, oval polygon or its
His arbitrary shape, certainly, the shape of each cross section of the length direction of the cylinder can be consistent, is also possible to different, i.e., should
Cylinder is variable cross-section cylinder), embedded division 20 is two, and is arranged in correspondence with the opposite sides radially in interconnecting piece 10, even
It connects hole 11 and is recessed inwardly by the first end or second end of interconnecting piece 10 and formed.
As shown in figure 5, interconnecting piece 10 is cylinder, the first end and radially opposite that interconnecting piece 10 is arranged in embedded division 20
Two sides, connecting hole 11 are recessed inwardly by the second end opposite with first end of interconnecting piece 10 and are formed.In other words, embedded division 20
Opening is provided in installation base body 21, interconnecting piece 10 is arranged in opening.
These three blades are described in detail with abaculus below:
As shown in Figures 1 to 3, interconnecting piece 10 is cylinder, along the axially extending of blade root 30.Certainly, in other embodiments
In, the cross-sectional shape of interconnecting piece 10 is also possible to other shapes, such as ellipse, polygon or irregular shape.Interconnecting piece
10 minimum length is according to the given nominal diameter of the bolt for connecting with wheel hub of blade, the minimum engagement length of given material
Degree etc. selects, therefore, to assure that bearing capacity.
Connecting hole 11 is axially extending along interconnecting piece 10.In the present embodiment, connecting hole 11 is blind hole, has screw thread,
It is engaged for the double threaded screw 50 with connection.The opening of connecting hole 11 is in the end face of the second end of interconnecting piece 10.
The installation base body 21 of embedded division 20 is connect by transition portion with interconnecting piece 10.Installation base body 21 is tabular.It crosses
Part is crossed to be gradually reduced by interconnecting piece 10 to 20 thickness of embedded division.The shape and length of transition portion are selected according to following manner,
It avoids stress from concentrating, and needs that reversed fatigue pressure is made to be maintained at low-level.
It should be noted that transition portion can be it is integrally formed with installation base body 21, i.e., transition portion really pacify
Fill a part of matrix 21.Installation base body 21 can be connect by modes such as welding or integrated injection moldings with interconnecting piece 10.
Preferably, in the present embodiment, along the direction far from interconnecting piece 10, the thickness of the installation base body 21 of embedded division 20 by
It is decrescence small.Since blade abaculus is when being embedded in blade root 30, further away from the depth of the direction of interconnecting piece 10 insertion blade root 30
Deeper, the bearing strength of the installation base body 21 needed can be reduced suitably, can reduce weight in this way.
Preferably, insertion protrusion 22 is provided in the two opposite side surfaces of installation base body 21.So that embedded division 20 and leaf
The connection of root 30 is relatively reliable, and load transfer capacity is more preferable.Certainly, insertion protrusion 22 can be provided only on the one of installation base body 21
On a side.
Multiple insertion protrusions 22 are provided on a side of installation base body 21, multiple insertion protrusions 22 are in installation base body
Setting is spaced on 21.
In the present embodiment, insertion protrusion 22 can arrange in a conventional manner in installation base body 21.As along installation base
The length direction of body 21 is successively spaced setting multiple groups and is embedded in protrusion 22, and every group of insertion protrusion 22 includes multiple along installation base body 21
Width direction successively spaced insertion protrusion 22.Certainly, in other embodiments, insertion protrusion 22 can be with unconventional
Mode arranges.
In the present embodiment, the cross section of insertion protrusion 22 is circle.Circle is more conducive to convenient for production.Insertion protrusion 22
Diameter selection in the following manner, injured caused by the hole for install insertion raised 22 formed on blade root 30 smaller.
The size of insertion protrusion 22 determines that raised 22 diameters of insertion are comparable to blade root 30 and meet material strand diameters in the following manner.When
Right manufacturing cost can also be taken into consideration.Preferably, the diameter of insertion protrusion 22 is equal with the diameter of the fibre bundle of blade root 30.
The size of multiple insertion protrusions 22 can be consistent.The quantity of insertion protrusion 22 in installation base body 21 is to be subjected to double end
Screw rod 50 transmit load and not failing in the life cycle of blade is advisable.Certainly, the size of insertion protrusion 22 can also root
Different sizes is designed as according to use demand.
Insertion protrusion 22 is assembled into installation base body 21 again after can individually producing, can also with the one of installation base body 21 at
Type.The length and shape of installation base body 21 are determined with following standard, can bear the load and nothing of 22 transmitting of insertion protrusion
Stress is concentrated.The thickness and width of installation base body 21 is selected according to following standard, it is ensured that installation base body 21 was used blade
The load transmitted from the double threaded screw 50 of blade can be born in journey to be advisable without failing.
Preferably, along the direction far from installation base body 21, the cross-sectional area of insertion protrusion 22 is gradually reduced.Certainly, at it
In his embodiment, the diameter of insertion protrusion 22 can not also change.
As shown in figure 4, the interconnecting piece 10 of blade abaculus is cylinder, embedded division 20 is fixed at the diameter of interconnecting piece 10
Upward opposite sides.Except the relative position of embedded division 20 and interconnecting piece 10 is different outer, such blade abaculus with it is above-mentioned
Blade abaculus can be consistent.The thickness of the installation base body 21 of the embedded division 20 of such blade abaculus can be consistent, can also be with
Gradual change.
As shown in figure 5, the interconnecting piece 10 of blade abaculus is cylinder, and the installation base body 21 of embedded division 20 is rectangle
Plate, and side has opening, interconnecting piece 10 is arranged in opening, and is seamlessly transitted with installation base body 21 by transition structure 40,
To prevent stress from concentrating.
As shown in Figure 6 to 8, according to another aspect of the present invention, a kind of blade is provided comprising blade root 30 and and blade root
The blade abaculus of 30 connections, blade abaculus are above-mentioned blade abaculus, and at least embedded division 20 of blade abaculus is arranged
In blade root 30.The blade is embedded in blade root 30 with abaculus, is reconnected double threaded screw 50, be can solve T-type in the prior art and connect
The problem of 30 thickness of blade root caused by head and service sleeve increases, and reduces vane efficiency.
Blade abaculus is multiple, and being provided at circumferentially spaced along blade root 30, to connect double threaded screw 50.Radially,
The distance of adjacent blades abaculus can be equal or different.
As shown in fig. 6, insertion protrusion 22 is connected to the corresponding part of blade root 30, insertion protrusion 22 may protrude 30 table of blade root
Face.Embedded division 20 can be installed in order to cooperate, hole or chamber are provided on blade root 30.
The shape of blade abaculus is not particularly critical, as long as blade abaculus does not have wedge angle, can reduce stress concentration
?.Especially needed idea avoids the generation fatigue crack of the threaded hole of interconnecting piece 10.Blade abaculus it is convex from blade root
Part out should prevent from corroding such as interconnecting piece 10 by suitable mode.
After blade is properly handled with abaculus, it can be loaded into blade root 30.With a jig plate (be not shown come)
Obtain the correct position of the blade abaculus in the annular of blade root 30.Blade abaculus mainly passes through the structure division of blade root 30
The compressing force and tension for being internally embedded protrusion 22 realize load transmitting.
The composite layer of blade root 30 is above and below embedded division 20.The cavity of blade root 30 is for placing embedded division
20.The actual cross sections of the cavity of blade root 30 can be any shape, however it is preferably crushed with high aspect ratio, so as to
Keep the structural intergrity of blade root composite material.
The quantity of blade abaculus depends on the design of the pitch variable bearings of wind power generating set.Typically for 1.5MW wind-force
The blade of generating set has no less than 50 blade abaculus.Bigger blade has more blade abaculus.Typical leaf
The width of piece abaculus is 100mm.And the spacing of blade abaculus is 112.9mm on center circle diameter.For a 2MW
For blade, center circle diameter 2300mm, 64 bolts use the bolt of M36.Certainly, it for bigger blade, uses
More bolts and elevator bolt diameter are also can be with.The concentric of two or more bolts and blade abaculus is provided in blade
Ring, one of them can promote compression/extended region between tip and blade root in another in this way.
Preferentially, the hole in the fiber-reinforced layer casting die of the blade root for installing insertion protrusion 22, can solidify in lamination
Period preform, or formed under the auxiliary of any other manufacturing process.
Optionally, interconnecting piece is covered by corrosion resistant coating.
The total weight and the cost of raw material of assembling blade can be reduced significantly using the blade abaculus, and including more
The manufacture of the wind generator set blade root of a this blade abaculus becomes easy.
According to another aspect of the present invention, a kind of blade, including two or more blade sections, adjacent leaf are provided
The part of one or two of segment blade sections docking is provided with blade abaculus (not shown), and blade abaculus is upper
The blade abaculus stated.Docking between blade sections may be implemented with abaculus using such blade, without increasing blade sections pair
The thickness of position is connect, leaf weight is reduced, realizes blade section connection.
Optionally, blade abaculus is multiple, and is arranged along the partially circumferentially interval of blade sections docking.
The another aspect of embodiment according to the present invention provides a kind of wind power generating set comprising blade, blade are upper
The blade stated.
Compared with classical root of blade attachment device, the insertion protrusion 22 of minor diameter does not apply or makes to the root of blade
At lesser damage, there is no stress to concentrate in the composite, therefore the thickness of blade root 30 and length can reduce, to subtract
The total weight of vanelets.
Compared with T shape pre-embedded bolt blade root, the total sectional area of hole drill rear blade is bigger, therefore the reliability increased.
Compared with pre-buried casing, the load of service sleeve is transmitted to set from root of blade by the shearing force in adhesive
Pipe, the blade of the present embodiment is loaded with abaculus mainly to be transmitted by way of the compression or stretching of insertion protrusion 22, increases material
Expect service efficiency.
Since fiber extends between blade root 30 and the insertion protrusion 22 of embedded division 20, in blade root 30 and embedded division 20
Between form new firm connection structure.Therefore, the principle of the present invention is based not only on transmits in conjunction with local compressive load,
Also based on the additional locking structure between insertion protrusion 22 and the fiber of blade root 30.
It, will not there is a situation where break inactivations since load transfer is gradually to shift, it is not necessary to increase root of blade thickness
Degree, therefore reduce the connection weight between wind generator set blade and wheel hub.
Leaf since insertion protrusion 22 can be arranged with predetermined position, after drilling out the hole for accommodating insertion protrusion 22
The total cross-sectional area of piece root keeps relatively large, and more bolts can be then installed at same radius and root of blade.When
When load is transmitted by the array of insertion protrusion 22, therefore current design is the design of multi-load path, correspondingly increases blade
The fault-tolerance of root component.
The blade abaculus is connect with blade is similar to three-dimensional type joint, is most effective joint categories, and T-type is not present
The problem of connector and service sleeve class connector.Using the blade abaculus of specific insertion protrusion 22, the diameter of insertion protrusion 22 with
The diameter of the fibre bundle of fibre reinforced materials is equal, can be fused to naturally in the fibre reinforced materials of blade root 30.Meanwhile with
Other design the length for engaging screw thread inside interconnecting piece 10 on the contrary according to the requirement selection of minimum length of action, to allow to reduce
10 weight of interconnecting piece.
Blade of the invention abaculus, blade and wind power generating set have the effect that
Blade can provide lower weight with abaculus for blade root；Root of blade component strength and tired longevity can be increased
Life, therefore increase the overall security of wind power generating set；Lower cost can be provided for root component, promote blade abaculus
Prevent it is ineffectiveness.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (12)
1. a kind of blade abaculus characterized by comprising
Interconnecting piece (10), the interconnecting piece (10) have connecting hole (11)；
Embedded division (20), the embedded division (20) connect with the interconnecting piece (10), and the embedded division (20) includes installation base body
(21) it and is embedded in raised (22), the insertion raised (22) is fixed on the installation base body (21), and the diameter along blade root (30)
To extension, or extending in a first direction, the radial direction of the first direction and the blade root (30) has the first angle,
Wherein, the installation base body (21) is plate, on a side of the installation base body (21) or in two opposite side surfaces
It is raised (22) to be provided with multiple insertions, multiple insertions raised (22) interval setting.
2. blade abaculus according to claim 1, which is characterized in that along the direction far from the interconnecting piece (10), institute
The thickness for stating the installation base body (21) of embedded division (20) is gradually reduced.
3. blade abaculus according to claim 1, which is characterized in that the diameter and the leaf for being embedded in raised (22)
The diameter of the fibre bundle of the fibre reinforced materials of root (30) is equal.
4. blade abaculus according to any one of claim 1 to 3, which is characterized in that along far from the installation base body
(21) direction, the cross-sectional area for being embedded in raised (22) are gradually reduced.
5. blade abaculus according to claim 1, which is characterized in that the embedded division (20) is arranged in the interconnecting piece
(10) first end；Or
The interconnecting piece (10) is cylinder, and the embedded division (20) is two, and the interconnecting piece is arranged in correspondingly
(10) opposite sides radially；Or
The interconnecting piece (10) is cylinder, first end and radially of the embedded division (20) setting in the interconnecting piece (10)
Opposite sides.
6. blade abaculus according to claim 1, which is characterized in that the connecting hole (11) is threaded hole.
7. a kind of blade, which is characterized in that including blade root (30) and the blade abaculus being connect with the blade root (30), the leaf
Piece abaculus is blade abaculus described in any one of claims 1 to 6, the embedded division (20) of at least described blade abaculus
Setting is in the blade root (30).
8. blade according to claim 7, which is characterized in that the blade abaculus is multiple, and along the blade root
(30) be provided at circumferentially spaced.
9. blade according to claim 7, which is characterized in that the blade further includes two or more blades
Section, two or more described blade sections are sequentially connected along the length direction of the blade；And/or two or more
The blade sections are sequentially connected along the width of the blade.
10. a kind of blade, which is characterized in that the blade includes two or more blade sections, in adjacent blade sections
The part of one or two blade sections docking be provided with blade abaculus, the blade is to appoint in claim 1 to 6 with abaculus
Blade abaculus described in one.
11. blade according to claim 10, which is characterized in that the blade abaculus is multiple, and along the blade
The partially circumferentially interval setting of section docking.
12. a kind of wind power generating set, which is characterized in that including blade, the blade is any one of claim 7 to 11 institute
The blade stated.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611186130.4A CN106609726B (en) | 2016-12-20 | 2016-12-20 | Insert for blade, blade and wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611186130.4A CN106609726B (en) | 2016-12-20 | 2016-12-20 | Insert for blade, blade and wind generating set |
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| Publication Number | Publication Date |
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| CN106609726A CN106609726A (en) | 2017-05-03 |
| CN106609726B true CN106609726B (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611186130.4A Active CN106609726B (en) | 2016-12-20 | 2016-12-20 | Insert for blade, blade and wind generating set |
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| CN (1) | CN106609726B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2569295A (en) | 2017-12-08 | 2019-06-19 | Vestas Wind Sys As | A replacement insert for repair of a joint connecting a wind turbine rotor blade to a rotor hub |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511191A (en) * | 2012-06-15 | 2014-01-15 | 华锐风电科技(集团)股份有限公司 | Embedded bolt, prefabricated blade root, blade, forming method of blade and wind generating set |
| CN203499928U (en) * | 2013-09-26 | 2014-03-26 | 黑龙江天华风电设备制造有限公司 | Novel locating device of blade root bolts |
| CN204152734U (en) * | 2014-10-21 | 2015-02-11 | 东方电气集团东方汽轮机有限公司 | A kind of wind power generation unit blade leaf and root structure |
| CN105464898A (en) * | 2015-12-01 | 2016-04-06 | 中国科学院工程热物理研究所 | Rotor blade structure of wind turbine and preparation method of rotor blade structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022255A (en) * | 2009-09-23 | 2011-04-20 | 苏州红枫风电模具有限公司 | Insertion piece for wind turbine blade root |
| CN201539357U (en) * | 2009-09-23 | 2010-08-04 | 苏州红枫风电模具有限公司 | Insertion piece used for root of blade of wind turbine |
| ES2598828T3 (en) * | 2011-04-11 | 2017-01-30 | Lm Wp Patent Holding A/S | Wind turbine blade comprising cylindrical metal inserts in a root region thereof |
-
2016
- 2016-12-20 CN CN201611186130.4A patent/CN106609726B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511191A (en) * | 2012-06-15 | 2014-01-15 | 华锐风电科技(集团)股份有限公司 | Embedded bolt, prefabricated blade root, blade, forming method of blade and wind generating set |
| CN203499928U (en) * | 2013-09-26 | 2014-03-26 | 黑龙江天华风电设备制造有限公司 | Novel locating device of blade root bolts |
| CN204152734U (en) * | 2014-10-21 | 2015-02-11 | 东方电气集团东方汽轮机有限公司 | A kind of wind power generation unit blade leaf and root structure |
| CN105464898A (en) * | 2015-12-01 | 2016-04-06 | 中国科学院工程热物理研究所 | Rotor blade structure of wind turbine and preparation method of rotor blade structure |
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| CN106609726A (en) | 2017-05-03 |
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