CN209892382U - Connecting structure for wind power blade extension joint - Google Patents
Connecting structure for wind power blade extension joint Download PDFInfo
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- CN209892382U CN209892382U CN201821550153.3U CN201821550153U CN209892382U CN 209892382 U CN209892382 U CN 209892382U CN 201821550153 U CN201821550153 U CN 201821550153U CN 209892382 U CN209892382 U CN 209892382U
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- 230000005611 electricity Effects 0.000 claims abstract description 8
- 238000004026 adhesive bonding Methods 0.000 claims description 5
- 239000011152 fibreglass Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 239000004744 fabric Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009787 hand lay-up Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 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
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- Wind Motors (AREA)
Abstract
The utility model discloses a connection structure for wind-powered electricity generation blade extension festival, connection structure is including setting up the connection locating plate on the extension festival, and is in the same place former blade and extension festival are fixed through connection locating plate. When the extension section is installed, firstly, the original blade fixing component and the extension section fixing component of the connecting tool are respectively connected with the original blade and the extension section; then, adjust the adjustment subassembly to utilize and connect the locating plate location, make the extension festival reach ideal mounted position. The utility model provides a connection structure and connection method for wind-powered electricity generation blade extension festival, fixed connection locating plate on the extension festival, connection locating plate can carry out the location of extension festival, carries out the temporary connection simultaneously, can simplify the structure of connecting the frock greatly, shortens the live time of frock in the air simultaneously, reduces the safety risk.
Description
Technical Field
The utility model relates to a wind generating set blade technical field especially relates to a connection structure for wind-powered electricity generation blade extension festival.
Background
Wind power generation has been widely used, and extension joints are used to increase the diameter of a wind wheel so as to increase the power generation capacity of a single fan. At present, the extension joint is mainly bonded by using structural adhesive and a raw blade, but when the structural adhesive is used for bonding, empty adhesive is easy to generate, and the position and the area of the empty adhesive are not easy to control, so that various quality hidden dangers are generated.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the above-mentioned prior art, the utility model aims at providing a connection structure for wind-powered electricity generation blade extension festival.
For realizing the utility model discloses a purpose, the utility model provides a connection structure for wind-powered electricity generation blade extension festival, connection structure is together fixed with former blade and extension festival through the location connecting plate including setting up the location connecting plate on the extension festival.
The connecting structure further comprises a connecting tool, and the original blade and the extension section are fixed together through the positioning connecting plate and the connecting tool.
The positioning connecting plate is two arc plates which are matched for use, the positions of the two arc plates are oppositely clamped on the original blade, and the positioning connecting plate and the original blade are fixed into a whole by gluing or bolt fixing and directly pasting glass fiber reinforced plastics.
The positioning connecting plate is adhered to the extension section through glue, connected through bolts or directly formed on the extension section and fixed together with the extension section.
Wherein, connect the frock, include: the original blade fixing assembly is used for fixing an original blade and a connecting tool together; the extension joint fixing assembly is used for fixing the extension joint and the connecting tool together; and the adjusting assembly is used for adjusting the relative position of the original blade and the extension section by adjusting the relative position of the original blade fixing assembly and the extension section fixing assembly.
Compared with the prior art, the beneficial effects of the utility model are that, a connection structure for wind-powered electricity generation blade extension festival is provided, fixed positioning connecting plate on the extension festival, and the location connecting plate can carry out the location of extension festival, carries out the temporary connection simultaneously, can simplify the structure of connecting the frock greatly, shortens the live time of frock in the air simultaneously, reduces safe risk.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
FIG. 2 is a schematic top view of the positioning connection plate of the present application;
fig. 3 is a schematic view of a product structure after the tool is removed.
Fig. 4 is a schematic structural view of the primary blade fixing assembly of the present application.
Fig. 5 is a schematic structural diagram of an adjusting assembly according to the present application.
Fig. 6 is a schematic structural view of the extension fixing assembly of the present application.
Fig. 7 is a schematic view illustrating an extension joint connection process according to the present application.
Fig. 8 is a working state diagram a of the fixing assembly (2), the adjusting assembly (3) and the extension fixing assembly (5) of the present application.
Fig. 9 is a working state diagram b of the fixing assembly (2), the adjusting assembly (3) and the extension fixing assembly (5) of the present application.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that "connected" and words used in this application to express "connected," such as "connected," "connected," and the like, include both direct connection of one element to another element and connection of one element to another element through another element.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when used in this specification the singular forms "a", "an" and/or "the" include "specify the presence of stated features, steps, operations, elements, or modules, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …", "above … …", "above … …", "above", and the like, may be used herein for ease of description to describe the spatial relationship of one component or module or feature to another component or module or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the component or module in use or operation in addition to the orientation depicted in the figures. For example, if a component or module in the figures is turned over, components or modules described as "above" or "above" other components or modules or configurations would then be oriented "below" or "beneath" the other components or modules or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The components or modules may also be oriented in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in figures 1-9 of the drawings,
the utility model discloses use 7 lug connection extension section 6 in cloth layer and former blade 1, set up positioning connection board 4 simultaneously on extension section 6, use positioning connection board 4 and connect frock and install extension section 6 jointly to simplify and connect the frock.
The cloth layer 7 is used as a main bearing structure, so the area of the cloth layer 7 is large. Meanwhile, when the cloth layers 7 are used for connection, the curing of the cloth layers 7 needs a long time (generally 2-6 hours), and during the curing of the cloth layers, the relative positions of the extension sections 6 and the original blades 1 cannot be changed at all, so that if the extension sections are directly installed by using the connection tool, the size and the rigidity of the connection positioning tool need to be large, and the weight of the tool is greatly increased.
The design of the connecting tool refers to the following method:
taking an extension section extending by 2m as an example, the weight of the connecting tool designed conventionally is more than 1500 kg.
Taking a certain 37.5m blade extension of 2m as an example, the flapping rigidity of the blade at the blade joint is 5 multiplied by 107Square meters with square meters, if conventional tools are used to replace rigidity, the square meters are rigidThe EI also needs to reach 5 × 107N*㎡。
Taking metal E ═ 2.06X 1011Pa, the radius of the moment of inertia at the airfoil is 0.07m, the length l of the tool is 3.5m, and the sectional area A of the tool at the section is provided.
Only the mass m required for stiffness is provided.
m＝ρV＝ρAl＝7500×0.05×3.5＝1312.5kg
Considering that the fixture also needs to perform other functions such as clamping, positioning, etc., the weight of the fixture conventionally made of iron may exceed 1500 kg.
The utility model discloses a combined action of location connecting plate 4 and connection frock will prolong festival 6 and install on former blade 1.
The relative position of former blade 1 and extension festival 6 can be adjusted to the connection frock, and location connecting plate 4 is fixed on extension festival 6, realizes extension festival 6's location and interim fixed. After the temporary fixing, the connecting tool can be detached for final fixing. Because the size and the rigidity of the connecting tool are greatly reduced, the total weight of the connecting tool and the positioning connecting plate 4 can be controlled below 150 kg.
By adopting a new structure, the tool is designed to resist the deformation of the extension joint during installation, the weight of the extension joint is 100kg, and the weight of the clamping part is 30 kg.
The operational wind speed generally specified in the air operation specification is 8m/s, the design is 10m/s, and the wind pressure P is
P＝0.5ρV2＝0.5×1.25×100＝62.5(Pa)
Pressure F generated thereby
F＝PS＝62.5×5＝312.5(N)
Therefore, the design load P is taken as 2000N in comprehensive consideration.
The length L is the maximum length of the simplified concentrated load from the installation site, in the limit case 2m,
the deformation f was 0.001 m.
Rigidity (EI) of the tooling is required1
Therefore, the rigidity requirement of the tool with the new structure is about 1/10 required by the conventional tool, so that under the same design concept, the weight of the tool is 1/10 of the tool designed by the conventional concept, and the weight of the newly designed tool is about 130-140 kg.
The weight of the tool is greatly reduced, and the cost for manufacturing the tool is reduced; secondly, the operation of workers is facilitated, the operation time is shortened, and the economic benefit is improved; again, the cost of transporting the tooling, especially lifting the tooling into the air, and the safety risk may also be reduced.
The utility model relates to a wind-powered electricity generation blade extension festival connection structure, it can contain former blade, connects frock, location connecting plate, extension festival, and former blade and extension festival carry out fixed mounting through connecting frock and location connecting plate, and the back is installed, will connect the frock and demolish.
Specifically, connect frock and divide into 3 parts: the device comprises an original blade fixing component 2, an adjusting component 3 and an extension joint fixing component 5. Former blade fixed subassembly 2 links to each other former blade 1 and connection frock and becomes fixed whole, and extension festival fixed subassembly 5 links to each other extension festival 6 and connection frock and becomes fixed whole, and adjustment subassembly 3 realizes the adjustment of former blade 1 and extension festival 6 relative position through former blade fixed subassembly 2 and the extension festival fixed subassembly 5 of adjustment frock.
Specifically, the original blade fixing assembly 2 includes a first clip 41, an upper frame 42, a second clip 43, a third clip 44, a lower frame 45, a fourth clip 46, and a hand wheel 47, wherein,
the first clamping piece, the second clamping piece, the third clamping piece and the fourth clamping piece are matched for use, the first clamping piece and the fourth clamping piece are vertically attached and clamped on one side of the original blade, the shape of the clamping piece is consistent with the shape and the size of one side of the original blade, the clamping piece is matched and used and is attached to the original blade, correspondingly, the second clamping piece and the third clamping piece are vertically attached and clamped on the other side of the original blade, the shape of the leaf is consistent with the shape and the size of the other side of the original leaf, the leaf is matched with the original leaf for use and is attached to the original leaf, the upper frame and the lower frame are square frames which are matched for use, the first clamping piece, the second clamping piece, the third clamping piece and the fourth clamping piece respectively penetrate through the upper frame and the lower frame through screws, the position of the screw rod is limited by two nuts respectively, after the screw rod of the hand wheel passes through the lower frame, is connected with the upper frame through screw threads, and the distance between the upper frame and the lower frame is adjusted by rotating a hand wheel.
Besides the above parts, the blade fixing component also comprises a rotating shaft 10 and a hanging extension arm 9, wherein the hanging extension arm is provided with a hanging hole 8, and the rotating shaft 10, the hanging extension arm 9 and the rest parts of the original blade fixing component are welded into a whole.
Specifically, extension joint fixing assembly includes: a first arc-shaped piece 61, a second arc-shaped piece 62, a second upper frame 63, a third arc-shaped piece 64, a second lower frame 65, a fourth arc-shaped piece 66 and a screw 67.
Wherein, the first arc piece, the second arc piece, the third arc piece and the fourth arc piece are matched for use, the first arc piece and the fourth arc piece are vertically jointed and clamped on one side of the extension section, the shape of the first arc piece and the fourth arc piece is consistent with the shape and the size of one side of the extension section, the first arc piece and the fourth arc piece are matched for use and are jointed and clamped on the extension section, correspondingly, the second arc piece and the third arc piece are vertically jointed and clamped on the other side of the extension section, the shape of the second arc piece and the size of the other side of the extension section are consistent with the shape and the size of the other side of the extension section, the second arc piece and the third arc piece are jointed and used on the extension section, the second upper frame and the second lower frame are square frames, the first arc piece, the second arc piece, the third arc piece and the fourth arc piece respectively pass through the second upper frame and the second lower frame through two nuts to limit the, and the second upper frame is in threaded connection, the distance between the second upper frame and the second lower frame is adjusted by rotating a screw rod, and in addition, a hanging hole 13 is formed.
Specifically, the adjusting assembly comprises a connecting rod 12 and an adjusting plate hoist 11. The upper end of the connecting rod 12 is provided with a tee joint which is inserted into the rotating shaft 10, so that the connecting rod 12 and the rotating shaft 10 can rotate; the connecting rod 12 and the extension joint fixing assembly are connected into a fixed whole through bolts.
Specifically, as shown in fig. 8, in the tool state in the natural state under the action of gravity, after the lever block is rotated, the distance of the lever block 11 is shortened, the connecting rod 12 rotates relative to the rotating shaft 10, and meanwhile, since the connecting rod 12 and the extension-joint fixing component 5 are fixed into a whole by the bolt, the angle adjustment of the extension-joint fixing component and the original blade fixing component is realized, as shown in fig. 9, the original blade fixing component is locked by the hand wheel and becomes a whole with the original blade, and the extension-joint fixing component becomes a whole with the extension joint by the bolt structure; the angle of the extension section fixing component and the original blade fixing component is adjusted to realize the angle adjustment of the original blade and the extension section.
In particular, the positioning connection plate may be, but is not limited to, fixed to the ground by gluing, bolting, direct molding on the extension segment or other means, and the relative positions of the positioning connection plate and the extension segment are ensured to be consistent by a special mold or tool.
Specifically, the top view of the positioning connecting plate is shown in fig. 2, which can define all relative positions of the positioning plate and the original blade except the up-down direction (the axial direction of the blade), the up-down direction can be determined by drawing lines according to the size of the original blade, and when the positioning connecting plate is connected with the original blade, the relative positions of the original blade and the extension section can be determined.
Specifically, when the extension section is installed, firstly, an original blade fixing assembly and an extension section fixing assembly of a positioning tool are respectively connected with an original blade and an extension section, then an adjusting assembly is adjusted, the extension section is positioned by utilizing a positioning connecting plate to reach an ideal installation position, and then the positioning connecting plate and the original blade can be fixed into a whole by using, but not limited to, gluing or bolt fixing or direct pasting of glass fiber reinforced plastics; meanwhile, the original blade and the extension section can be initially connected by using a part of cloth layer.
Specifically, after the positioning connecting plate and the original blade are fixed into a whole, the positioning tool can be removed, the original blade and the connecting cloth layer 7 of the extension section are completely laid,
in particular, it can be made using a hand lay-up process or a vacuum assisted moulding process.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The utility model provides a connection structure for wind-powered electricity generation blade extension festival, a serial communication port, connection structure is together fixed former blade (1) and extension festival (6) through location connecting plate (4) including setting up location connecting plate (4) on extension festival (6), connection structure is still including connecting the frock, through location connecting plate (4) and connection frock with former blade (1) and extension festival (6) fixed together, connect the frock, include: the device comprises an original blade fixing component (2), an adjusting component (3) and an extension section fixing component (5), wherein the original blade fixing component (2) is used for fixing an original blade (1) and a connecting tool together; the extension joint fixing assembly (5) is used for fixing the extension joint (6) and the connecting tool together; the adjusting component (3) is used for adjusting the relative position of the original blade (1) and the extension section (6) by adjusting the relative position of the original blade fixing component (2) and the extension section fixing component (5).
2. The connecting structure for the wind power blade extension joint according to claim 1, wherein the positioning connecting plate (4) is two arc-shaped plates, the two arc-shaped plates are matched for use, the two arc-shaped plates are oppositely clamped on the original blade (1), and the positioning connecting plate (4) and the original blade (1) are fixed into a whole by gluing or bolt fixing and direct pasting of glass fiber reinforced plastics.
3. The connecting structure for the wind power blade extension joint according to claim 2, wherein the positioning connecting plate (4) is fixed with the extension joint (6) by gluing, bolting or direct molding on the extension joint (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821550153.3U CN209892382U (en) | 2018-09-21 | 2018-09-21 | Connecting structure for wind power blade extension joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821550153.3U CN209892382U (en) | 2018-09-21 | 2018-09-21 | Connecting structure for wind power blade extension joint |
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| Publication Number | Publication Date |
|---|---|
| CN209892382U true CN209892382U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821550153.3U Active CN209892382U (en) | 2018-09-21 | 2018-09-21 | Connecting structure for wind power blade extension joint |
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| CN (1) | CN209892382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185046A (en) * | 2018-09-21 | 2019-01-11 | 中科国风检测（天津）有限公司 | Connecting structure and connecting method for wind power blade extension section |
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2018
- 2018-09-21 CN CN201821550153.3U patent/CN209892382U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185046A (en) * | 2018-09-21 | 2019-01-11 | 中科国风检测（天津）有限公司 | Connecting structure and connecting method for wind power blade extension section |
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Address after: 300384 1016, building 5, No. 15, Huake 1st Road, Huayuan Industrial Zone, hi tech Zone, Binhai New Area, Tianjin Patentee after: Zhongke Guotong testing and certification (Tianjin) Co.,Ltd. Address before: 300384 room 1016, building 5, No.15, Huake 1st Road, Huayuan Industrial Zone, Binhai New Area, Tianjin Patentee before: ZHONGKE GUOFENG TESTING (TIANJIN) Co.,Ltd. |