CN205117609U - Wind generating set's segmentation blade - Google Patents
Wind generating set's segmentation blade Download PDFInfo
- Publication number
- CN205117609U CN205117609U CN201520911133.4U CN201520911133U CN205117609U CN 205117609 U CN205117609 U CN 205117609U CN 201520911133 U CN201520911133 U CN 201520911133U CN 205117609 U CN205117609 U CN 205117609U
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- Prior art keywords
- blade
- counterpart
- clip
- generating set
- wind power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000011218 segmentation Effects 0.000 title abstract description 8
- 238000010030 laminating Methods 0.000 claims abstract description 3
- 239000012783 reinforcing fiber Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Wind Motors (AREA)
Abstract
The utility model provides a wind generating set's segmentation blade. This wind generating set's segmentation blade at least including first blade section and with first blade section fixed connection's second blade section, it still includes blade coupling assembling, the blade coupling assembling include: first fitting piece, the fixed first end that sets up in first blade section of first fitting piece, the second fitting piece, fixed first the serving that sets up in second blade section of second fitting piece, and cooperate with first blade section, be provided with the arch on the side outwards of first fitting piece and second fitting piece, when first fitting piece and the laminating of second fitting piece, cramp the arch two protruding constitutions, connect the clamp, connect the clamp and have the clamp recess to cramp on cramping the arch through the clamp recess, so that first fitting piece and second fitting piece fastening connection. This blade adopts the sectional type structure, and manufacturing cost and cost of transportation are lower, adopts arch and clamp complex fastening structure can save subsequent maintenance work.
Description
Technical field
The utility model relates to field of wind power equipment, particularly relates to a kind of subsection blade of wind power generating set.
Background technique
At present at wind power industry, the wind sweeping area of horizontal axis wind-driven generator is increasing, the length of blade is more and more longer thereupon, the blade that indivedual area has influence on certain length by topography and geomorphology cannot be transported to specified position, so just constrains the construction and development of High aititude and mountain region Wind-Electric Power Stations.
Because the length of blade increases, the length of the vehicle of transporting blade also needs to increase, and also strain is large mutually for the radius of turn of transport routes, this not only adds the expense of road performance, has also buried potential safety hazard for the current of road simultaneously.
In addition, when producing blade, the mould producing blade also needs increasing, and mould, factory building, making all face great difficulty and challenge, produces bring difficulty for blade.
Blade section can be saved above-mentioned problem, but existing blade section method is generally in the segmentation of blade stage casing, then two sections of blade bolts are connected, this scheme drawback is that destroy local aerofoil profile needs regularly to tighten bolt in the sky simultaneously, add potential safety hazard, also improve the cost that also blade uses simultaneously.
Model utility content
Embodiment of the present utility model provides a kind of subsection blade of wind power generating set, uses bolt to connect unsafe problem to solve subsection blade.
For achieving the above object, embodiment of the present utility model provides a kind of subsection blade of wind power generating set, the second blade sections at least comprising the first blade sections and be fixedly connected with the first blade sections, also comprise blade connection part, blade connection part comprises: the first counterpart, and the first counterpart is fixedly installed on the first end of the first blade sections; Second counterpart, second counterpart is fixedly installed on the first end of the second blade sections, and coordinates with the first blade sections, and the side outwardly of the first counterpart and the second counterpart is provided with projection, when the first counterpart and the laminating of the second counterpart, two protruding composition bandings are protruding; Jointing clip, jointing clip has clip recess, and by clip recess banding in banding projection, is fastenedly connected to make the first counterpart and the second counterpart.
Further, clip recess and the protruding interference fit of banding.
Further, the first counterpart and/or the second counterpart comprise linkage section and are arranged on the flange section of one end of linkage section, and linkage section is embedded in the laying of blade.
Further, the laying of the first blade sections comprises lower laying and upper laying, and the linkage section of the first counterpart is arranged between lower laying and upper laying.
Further, one end away from flange section of linkage section is inclined-plane.
Further, linkage section is provided with at least one reinforcing fiber connecting groove, in reinforcing fiber connecting groove, is filled with reinforcing fiber.
Further, the end face of the flange section of the first counterpart is provided with spacing fitting projection, the flange section of the second counterpart is provided with the spacing fit held spacing fitting projection and coordinate.
Further, along the length direction of blade, the side of banding projection and between the end face of the first blade sections and the end face of the second blade sections, there is gap, when jointing clip is connected in banding projection, the end face of the first exterior edge face of jointing clip and the first end of the first blade sections is fitted, and the end face of the second exterior edge face of jointing clip and the first end of the second blade sections is fitted.
Further, jointing clip comprises suction surface clip and pressure side clip, and suction surface clip is fixedly connected with by pin with the rear acies of pressure side clip.
Further, the front acies of suction surface clip has the first dislocation boss extended along vane airfoil profile, the front acies of pressure side clip has the second dislocation boss extended along vane airfoil profile, first dislocation boss and the second dislocation boss split jointing clip along the length direction of blade, first dislocation boss is fixedly connected with by pin with the second dislocation boss, and welds.
The wind generator set blade of embodiment of the present utility model adopts segmentation structure, cost of production and cost of transportation lower, use jointing clip and banding projection adjacent two blade sections to be connected, convenient.
Accompanying drawing explanation
Fig. 1 is the adjacent two sections of perspective view connected of the subsection blade of the wind power generating set of embodiment of the present utility model;
Fig. 2 is the perspective view that the first blade sections of the first counterpart is housed of the subsection blade of the wind power generating set of embodiment of the present utility model;
Fig. 3 is the perspective view that the second blade sections of the second counterpart is housed of the subsection blade of the wind power generating set of embodiment of the present utility model;
Fig. 4 is the structural representation of the first counterpart of the subsection blade of the wind power generating set of embodiment of the present utility model;
Fig. 5 is the structural representation that the first counterpart of reinforcing fiber is housed of the subsection blade of the wind power generating set of embodiment of the present utility model;
Fig. 6 is the structural representation of the joint of two blade sections of the subsection blade of the wind power generating set of embodiment of the present utility model;
Fig. 7 is the perspective view of the jointing clip of the subsection blade of the wind power generating set of embodiment of the present utility model.
Description of reference numerals:
10, the first blade sections; 11, lower laying; 12, upper laying; 20, the second blade sections; 31, the first counterpart; 311,321, linkage section; 312,322, flange section; 313, inclined-plane; 314, reinforcing fiber connecting groove; 315, spacing fitting projection; 32, the second counterpart; 325, spacing fit; 33, banding is protruding; 34, jointing clip; 341, clip recess; 342, the first dislocation boss; 343, the second dislocation boss; 40, reinforcing fiber.
Embodiment
Below in conjunction with accompanying drawing, the wind power generating set of the utility model embodiment and blade thereof are described in detail.
As shown in Figure 1 to Figure 3, according to embodiment of the present utility model, the subsection blade of wind power generating set at least comprises the first blade sections 10, the second blade sections 20 be fixedly connected with the first blade sections 10 and blade connection part.Blade connection part is used for the first blade sections 10 and the second blade sections 20 to be fastenedly connected, and to form blade, it comprises the first counterpart 31, second counterpart 32 and jointing clip 34.First counterpart 31 is fixedly installed on the first end of the first blade sections 10, second counterpart 32 is fixedly installed on the first end of the second blade sections 20, and coordinate with the first blade sections 10, the side outwardly of the first counterpart 31 and the second counterpart 32 is provided with projection, when first counterpart 31 and the second counterpart 32 are fitted, two protruding composition banding projections 33.Jointing clip 34 has clip recess 341, and by clip recess 341 banding in banding projection 33, is fastenedly connected to make the first counterpart 31 and the second counterpart 32.Blade is divided into two or more, makes the length of every section shorter, to facilitate transport, to reduce cost of transportation; One end close to each other of two adjacent blade sections arranges the first counterpart 31 and the second counterpart 32 respectively and by jointing clip 34 by the first counterpart 31 and the second counterpart 32 banding, realizes the reliable connection of adjacent two blade sections.Owing to adopting jointing clip 34 to be connected and fixed, make blade assembling convenient, blade is more firm, and avoids the problem needing periodic maintenance caused with bolts, and user cost and risk are all lower.
It should be noted that the hop count that blade is split can adjust according to actual needs, be divided into more than two sections, dock between adjacent segment blade and use the jointing clip 34 consistent with local aerofoil profile to carry out connecting.
In the present embodiment, in order to ensure blade integral intensity, enhancement layer is set at the close end of adjacent two blade sections.Such as, the laying quantity of the end of blade sections is increased, to increase mechanical property.
Preferably, in order to ensure jointing clip 34 and the first counterpart 31 and the second counterpart 32 secure and reliable connection, and then connect reliable between each section of guarantee blade, clip recess 341 33 interference fit protruding with banding.Make the first counterpart 31 produce frictional force with the end face that contacts of the second counterpart 32, to bear warping force, the first counterpart 31 makes the shape consistent with joint aerofoil profile with the second counterpart 32, to maintain local aerofoil profile, avoids the aerodynamic loss that segmentation brings.
As shown in Fig. 2, Fig. 4 and Fig. 5, the first counterpart 31 is arranged on the first end of the first blade sections 10, and its shape is consistent with the aerofoil profile of the first blade sections 10, can ensure that the aerofoil profile of blade integral is consistent with design, and then ensures the aeroperformance of blade.In the present embodiment, first counterpart 31 comprises linkage section 311 and flange section 312, linkage section 311, for being arranged in the first blade sections 10, makes the first counterpart 31 be fixedly connected with the first blade sections 10, and flange section 312 is for coordinating with the second counterpart 32 and jointing clip 34.Flange section 312 is fixedly connected with linkage section 311.Both can be one-body molded, linked together after also can processing separately by modes such as welding, rivet or be spirally connected again.
Preferably, one end away from flange section 312 of linkage section 311 has inclined-plane 313, along blade by inner and outer direction, the length of linkage section 311 reduces gradually.Because linkage section 311 is embedded in the laying of the first blade sections 10, in order to prevent stress from concentrating, the laying be laid on linkage section 311 is done staggered floor and is arranged, the length of the laying namely on it reduces gradually.
In conjunction with shown in Figure 6, particularly, the laying of the first blade sections 10 is divided into for the formation of the lower laying 11 of blade outboard with for the formation of the upper laying 12 inside blade.When carrying out layer paving, (or part) fiberglass cloth of first lay half can form lower laying 11, then linkage section 311 is put in the lower laying 11 completed, second half (or remaining) fiberglass cloth of last lay, realizes linkage section 311 with this and is embedded in the first blade sections 10.In order to avoid stress is concentrated, the layer of cloth of upper laying 12 from down to up length reduces gradually.
More preferably, material due to the first counterpart 31 is steel, in order to ensure linkage section 311 and the first blade sections 10 stable connection, linkage section 311 is provided with at least one reinforcing fiber connecting groove 314, reinforcing fiber 40 is filled with in reinforcing fiber connecting groove 314, so that the laying of blade and reinforcing fiber 40 one can be poured into and solidifying by resin in the form process of carrying out the first blade sections 10, both are made to become to be integrated.
Particularly, reinforcing fiber 40 fill and compacting in the reinforcing fiber connecting groove 314 of linkage section 311, when lower laying 11 places linkage section 311, reinforcing fiber 40 is placed in lower laying 11 with linkage section 311.
Reinforcing fiber 40 can use the symmetric layups of 0 °/± 45 °, and certainly, reinforcing fiber 40 also can select other glass fiber cloth satisfied the demands.
Flange section 312 protrudes from the first end face of the first blade sections 10, and its one side towards blade outboard is provided with the projection for forming banding projection 33.
Preferably, conveniently the first counterpart 31 coordinates with the second counterpart 32, and the end face of the flange section 312 of the first counterpart 31 is provided with spacing fitting projection 315.This spacing fitting projection 315 is multiple and is distributed on the end face of flange section 312.
In conjunction with see Fig. 3, structure and first counterpart 31 of the second counterpart 32 are similar, and the second counterpart 32 also comprises linkage section 321 and flange section 322.The structure of the structure of the linkage section 321 of the second counterpart 32 and effect and the linkage section 311 of the first counterpart 31 and act on consistent, this linkage section 321 is fixedly installed in the laying of the second blade sections 20.
The projection be provided with in the one side of blade outboard for forming banding projection 33 of the flange section 322 of the second counterpart 32.In the spacing fit 325 be provided with in the one side of the first counterpart 31 for holding spacing fitting projection 315 of the flange section 322 of the second counterpart 32, location is connected to facilitate blade, ensure the smooth abutting joint of two blade sections, share the shearing that blade twist produces simultaneously.
In conjunction with see Fig. 6, jointing clip 34 is connected in banding projection 33.Particularly, along the length direction of blade, the side of banding projection 33 and between the end face of the first blade sections 10 and the end face of the second blade sections 20, there is gap, between the end face of the i.e. end face of the projection of the first counterpart 31 and the first end of the first blade sections 10, there is gap, between the end face of the end face of the projection of the second counterpart 32 and the first end of the second blade sections 20, there is gap.These two gaps may be used for the cell wall of the clip recess 341 holding jointing clip 34.
When jointing clip 34 is connected in banding projection 33, the end face of the first exterior edge face of jointing clip 34 and the first end of the first blade sections 10 is fitted, and the end face of the second exterior edge face of jointing clip 34 and the first end of the second blade sections 20 is fitted, to ensure stable connection.
In conjunction with see Fig. 7, in order to ensure that jointing clip 34 is convenient to install, jointing clip 34 comprises suction surface clip and pressure side clip, and suction surface clip is fixedly connected with by pin with the rear acies of pressure side clip.Rear acies due to suction surface clip and pressure side clip can separate and thus can be assembled in banding projection 33 by jointing clip 34 easily, then utilizes pin can realize reliable connection by acies is fixing after two.Because the aerofoil profile of blade affects, adopt this kind of mounting type needs to select and there is flexible material making jointing clip 34.
In order to install jointing clip 34 more easily, ensure that the material of jointing clip 34 can meet strength demand, be detachable structure between suction surface clip and pressure side clip simultaneously.Particularly, the front acies of suction surface clip has the first dislocation boss 342 extended along vane airfoil profile, the front acies of pressure side clip has the second dislocation boss 343, first extended along vane airfoil profile and to misplace boss 342 and the second dislocation boss 343 length direction segmentation jointing clip 34 along blade.During use, suction surface clip and pressure side clip are in place, first dislocation boss 342 and the second dislocation boss 343 can dock, suction surface clip and pressure side clip can form a complete jointing clip 34, by pin, suction surface clip is fixedly connected with rear acies with the front acies of pressure side clip afterwards, and and by the seam of front acies and pin welding, because suction surface clip and pressure side clip do not carry main load, only play connection function, thus do not need after being welded to safeguard, thus avoid the bolted maintenance issues of use, can ensure to use reliably, again without the need to carrying out operation in high-altitude to bolt, convenient and can reduce costs.
In order to ensure the aeroperformance of blade, the shape of jointing clip 34 should be consistent with the aerofoil profile of the blade at its place place.
In order to ensure Security and the serviceability of the blade of segmented, carrying out encapsulation process the joints of adjacent two sections, entering blade interior to prevent water.The glue that such as accesses to your password when connecting carries out encapsulation process to joint.
Because the first counterpart 31 and the structure such as the second counterpart 32 and jointing clip 34 use metal, therefore need to do lightning protection at join domain, and be connected with the main ground wire of blade, and final ground connection.Wire is such as adopted to connect jointing clip 34 and the main ground wire of blade.
Adopt the blade of segmented, integral blade can be solved and manufacture the problem that difficult cost is high, transport and store inconvenience, simultaneously this kind of blade adopts the mode of clip to connect, and maintains local aerofoil profile and exempts high cost, the high risk problem that blade maintenance brings.
Wind power generating set of the present utility model and blade thereof have following effect:
Blade is divided into two or more, and connecting end surface adopts connection part to connect, and does not need large mold, decreases factory building and uses, reduce manufacture difficulty and cost and cost of transportation.In addition, blade can fragmented transport when greatly reducing transport road conditions on transporting the restriction and impact that cause, the storage of also more convenient blade simultaneously.
Blade uses Placement that is protruding and clip cooperation, firmly convenient, decreases the impact of the aeroperformance on segmentation place, and avoids safeguarding, decrease user cost and application risk.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (10)
1. the subsection blade of a wind power generating set, the second blade sections (20) at least comprising the first blade sections (10) and be fixedly connected with described first blade sections (10), it is characterized in that, also comprise blade connection part, described blade connection part comprises:
First counterpart (31), described first counterpart (31) is fixedly installed on the first end of described first blade sections (10);
Second counterpart (32), described second counterpart (32) is fixedly installed on the first end of described second blade sections (20), and coordinate with described first blade sections (10), the side outwardly of described first counterpart (31) and described second counterpart (32) is provided with projection, when described first counterpart (31) and described second counterpart (32) laminating, two described projections composition banding projection (33);
Jointing clip (34), described jointing clip (34) has clip recess (341), and by described clip recess (341) banding on described banding projection (33), be fastenedly connected to make described first counterpart (31) and described second counterpart (32).
2. the subsection blade of wind power generating set according to claim 1, is characterized in that, described clip recess (341) and described banding projection (33) interference fit.
3. the subsection blade of wind power generating set according to claim 1, it is characterized in that, described first counterpart (31) and/or described second counterpart (32) comprise linkage section (311,321) and are arranged on the flange section (312,322) of one end of described linkage section (311,321), and described linkage section (311,321) is embedded in the laying of blade.
4. the subsection blade of wind power generating set according to claim 3, it is characterized in that, the laying of described first blade sections (10) comprises lower laying (11) and upper laying (12), and the described linkage section (311) of described first counterpart (31) is arranged between described lower laying (21) and upper laying (22).
5. the subsection blade of wind power generating set according to claim 3, is characterized in that, one end away from described flange section (312) of described linkage section (311) is inclined-plane (313).
6. the subsection blade of the wind power generating set according to any one of claim 3 to 5, it is characterized in that, described linkage section (311) is provided with at least one reinforcing fiber connecting groove (314), in described reinforcing fiber connecting groove (314), is filled with reinforcing fiber (40).
7. the subsection blade of wind power generating set according to claim 3, it is characterized in that, the end face of the flange section (312) of described first counterpart (31) is provided with spacing fitting projection (315), the flange section (322) of described second counterpart (32) is provided with the spacing fit (325) held described spacing fitting projection (315) and coordinate.
8. the subsection blade of wind power generating set according to claim 1, it is characterized in that, along the length direction of blade, the side of described banding projection (33) and between the end face of described first blade sections (10) and the end face of described second blade sections (20), there is gap, when described jointing clip (34) is connected on described banding projection (33), the end face of the first exterior edge face of described jointing clip (34) and the first end of described first blade sections (10) is fitted, the end face of the second exterior edge face of described jointing clip (34) and the first end of described second blade sections (20) is fitted.
9. the subsection blade of wind power generating set according to claim 1, it is characterized in that, described jointing clip (34) comprises suction surface clip and pressure side clip, and described suction surface clip is fixedly connected with by pin with the rear acies of described pressure side clip.
10. the subsection blade of wind power generating set according to claim 9, it is characterized in that, the front acies of described suction surface clip has the first dislocation boss (342) extended along vane airfoil profile, the front acies of described pressure side clip has the second dislocation boss (343) extended along described vane airfoil profile, described first dislocation boss (342) and described second dislocation boss (343) split described jointing clip (34) along the length direction of blade, described first dislocation boss (342) is fixedly connected with by pin with described second dislocation boss (343), and weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520911133.4U CN205117609U (en) | 2015-11-16 | 2015-11-16 | Wind generating set's segmentation blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520911133.4U CN205117609U (en) | 2015-11-16 | 2015-11-16 | Wind generating set's segmentation blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205117609U true CN205117609U (en) | 2016-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520911133.4U Active CN205117609U (en) | 2015-11-16 | 2015-11-16 | Wind generating set's segmentation blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205117609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139549A (en) * | 2018-08-08 | 2019-01-04 | 合肥通用机械研究院有限公司 | A kind of carbon fiber axle axial flow fan blade device of wear resistant corrosion resistant |
-
2015
- 2015-11-16 CN CN201520911133.4U patent/CN205117609U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139549A (en) * | 2018-08-08 | 2019-01-04 | 合肥通用机械研究院有限公司 | A kind of carbon fiber axle axial flow fan blade device of wear resistant corrosion resistant |
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| GR01 | Patent grant |