CN202545143U - Flexible socket and alignment device for mounting sea fan - Google Patents
Flexible socket and alignment device for mounting sea fan Download PDFInfo
- Publication number
- CN202545143U CN202545143U CN2012201850673U CN201220185067U CN202545143U CN 202545143 U CN202545143 U CN 202545143U CN 2012201850673 U CN2012201850673 U CN 2012201850673U CN 201220185067 U CN201220185067 U CN 201220185067U CN 202545143 U CN202545143 U CN 202545143U
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- offshore wind
- wind turbine
- alignment device
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- flexibility
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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
- Y02E10/727—Offshore wind turbines
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Abstract
The utility model provides a flexible socket and alignment device for mounting a sea fan. The device comprises an upper hanger component and a lower supporter component, wherein the upper hanger component is connected with an upper tower of the sea fan, and comprises an outer supporting member, a positioning member, a hanging member and an inner ring; the inner ring is arranged inside the upper hanger component; the positioning member and the hanging member are respectively arranged on the outer supporting member of the upper hanger component; the lower supporter component is hanged on a lower tower of the sea fan, and comprises a flexible socket member and a positioning alignment member; the flexible socket member comprises a hydraulic cylinder and an energy accumulator which can go up and down simultaneously; and the positioning alignment member is arranged on the circumference of the lower supporter component. According to the flexible socket and alignment device for mounting the sea fan, the influence of sea wave to the sea fan when the sea fan is mounted is effectively reduced, and the alignment mounting of the sea fan can be realized precisely.
Description
Technical field
The utility model relates to a kind of blower fan erecting device, relates in particular to a kind ofly can effectively guarantee the precision of installing and prevent that the installation flexibility of the offshore wind turbine of the collision that caused because wave jolts from accepting and alignment device.
Background technique
Quickening along with China's economic pace; Commercial power and residential electricity consumption all significantly increase; Cause the supply day of China's electric power to be becoming tight; And the present most electric power resource of China all comes from the thermal power plant, and under situation about being becoming tight energy day at present, country has strengthened the exploitation of clean energy resource and support.Therefore, appear on Divine Land as wind energy turbine set and water power plant spring up like bamboo shoots after a spring rain, have in China under the background on very long shore line and vast coastal areas and territorial seas, the exploitation of marine wind field with promote the support that has obtained government and enterprise.
Though but marine wind field has not the landed property resource, advantage such as a large amount of clean energy resourcies can be provided, its installation process is comparatively complicated; In the blower fan installation process; Because rising and falling on the waves, pontoon crane can cause installation process difficulty very; How overcoming wave is the big difficult point that offshore wind turbine is installed to the influence of installation process; The same contraposition that on wide sea level, how to realize upper column tube and bottom tower tube also is a problem demanding prompt solution.
Summary of the invention
The utility model technical problem to be solved is that a kind of operability and stationarity that guarantees that offshore wind turbine is installed need be provided, and the installation flexibility that can effectively guarantee the precision of installing and reduce the offshore wind turbine of the collision that caused because wave jolts is accepted and alignment device.
To this; The utility model provides a kind of installation flexibility of offshore wind turbine to accept and alignment device; Comprise: the over sling member that is connected with the upper column tube of offshore wind turbine; Said over sling member comprises external support component, positioning element, lifting part and inner ring, and said inner ring is arranged at the inboard of over sling member, and said positioning element and lifting part are arranged at respectively on the external support component of over sling member; And; Hang on the following supporting frame on the bottom tower tube of offshore wind turbine; Said down supporting frame comprises that flexibility accepts parts and location aligning parts; Said flexibility is accepted hydraulic jack and the accumulator that parts comprise up-down simultaneously, and said location aligning parts is arranged at down on the circumference of supporting frame.
Wherein, offshore wind turbine is an offshore wind generating, and the tower tube of offshore wind generating is divided into upper column tube and bottom tower tube, links together during installation; Said positioning element and lifting part are arranged on the external support component of over sling member, are convenient to lifting and location; Said inner ring preferably links to each other through some bolts with blower fan upper column tube; Said down supporting frame cylindrical structure comprises the two halves column part of symmetry, is convenient to be suspended on the bottom tower tube of offshore wind turbine, comprises that flexibility accepts parts and location aligning parts; Flexibility is accepted oil cylinder and the accumulator that parts comprise up-down simultaneously, plays jacking, cushions and follow effect, is preferably the oil cylinder and the accumulator that comprise that six covers go up and down simultaneously; The location aligning parts is realized the upper column tube of offshore wind turbine and the accurate contraposition of bottom tower tube; The positioning element of said location aligning parts and over sling member cooperates realizes accurately location.
The advantage of the utility model is; At sea the upper column tube of blower fan and bottom tower tube are installed in the docking operation; Oil cylinder through on the following supporting frame plays buffering and jacking effect, and to reduce the influence of wave, hold and accept over sling member and offshore wind turbine simultaneously through it whole; Can effectively reduce wave to the offshore wind turbine installation influence, also can realize that the contraposition of offshore wind turbine is installed simultaneously comparatively accurately.
The further improvement of the utility model is that said over sling member is the ring over sling.Said over sling member is a circular structure; Because positioning element is arranged at the centre that the outside lifting part of ring over sling is arranged at the ring over sling; And inner ring is arranged at the inboard of ring over sling, makes the stressed very balance of over sling member, rationally, and is evenly reliable.
The further improvement of the utility model is that said location aligning parts comprises coarse positioning spare and fine positioning spare, and said fine positioning spare is corresponding one by one with positioning element.Said coarse positioning spare is preferably the upright arm of guiding, and the upright arm top of said guiding leans outward.
The utility model roughly positions whole hoisting structure through said coarse positioning spare with bottom tower tube; Said coarse positioning spare is preferably the upright arm of guiding; And be arranged at down on the circumference of supporting frame, the upright arm top of said guiding leans outward, and is convenient to realize preliminary guiding and location; In addition; Said location aligning parts also comprises and positioning element fine positioning spare one to one; Can effectively reduce wave to the offshore wind turbine installation influence; On this basis, install with realizing the contraposition of comparatively accurate offshore wind turbine cooperating of over sling member through coarse positioning spare and fine positioning spare.
Said supporting frame down preferably is equipped with three upright arms of guiding on its 120 ° of circumference, the top of the upright arm of guiding all slightly leans outward.
The further improvement of the utility model is that said positioning element is an alignment pin.Said alignment pin is preferably a pair of symmetry and is distributed in the conical dowel pin axle on the lower support frame member, is convenient to realize better the location, promotes the accurate contraposition of upper column tube and bottom tower tube.
The further improvement of the utility model is, said fine positioning spare is and alignment pin pin-and-hole seat one to one.Said pin-and-hole seat is corresponding one by one with the alignment pin of over sling member; Preferably; Be distributed with the vertically arranged oil cylinder of two covers on the said pin-and-hole seat; Can cash sale the hole seat in horizontal plane, move, according to the accurate contraposition of control upper column tube such as laser rangefinder and diffuse reflection electric system and bottom tower tube, the installation of promotion offshore wind turbine.
The further improvement of the utility model is that said flexibility is accepted parts and comprised six cover hydraulic jacks, and said hydraulic jack is uniformly distributed in down on the circumference of supporting frame.The effect that can play buffering, jacking and follow through equally distributed hydraulic jack has reduced the influence of wave, can hold and accept simultaneously over sling member and offshore wind turbine integral body.
The further improvement of the utility model is that said lifting part is a hanger.Said hanger is preferably 2 pairs of hangers that are distributed on the over sling member, and the height of every pair of hanger differs, and is convenient to the installation of offshore wind turbine.
The further improvement of the utility model is that said supporting frame down hangs on the bottom tower tube of offshore wind turbine through hangers.
During use, elder generation is fixedly connected the outer ring of offshore wind turbine upper column tube bottom flange in the land with the inner ring of over sling member, is preferably through bolt to fix up, and meanwhile, is suspended on following supporting frame on the bottom tower tube of offshore wind turbine; Arrive the erecting bed to offshore wind turbine integral body and over sling member whole Transporting through cargo ship then, through pontoon crane it is hung down again, and install.Through coarse positioning spare; As the upright arm that leads makes whole hoisting structure roughly to position with bottom tower tube; Pontoon crane this moment hoisting structure is put down slowly; When hoisting structure and flexibility were accepted parts and contacted, 6 cover hydraulic jacks had begun buffer function, so that the reduction wave is to influence that pontoon crane produced.When being buffered to certain stage, hydraulic jack has begun the jacking effect, begins to hold whole hoisting structure and goes up and down; When whole hoisting structure drops to certain position; Pin-and-hole seat on the following supporting frame and alignment pin cooperate, and form the positioning pin hole structure, and the structural oil cylinder of positioning pin hole begins under the guidance of fine positioning spare, to move; So that realize the inner ring of upper column drum flange and the fine positioning of bottom tower drum flange; The location fixes up bottom tower tube and upper column tube through bolt after accomplishing, and the installation of offshore wind turbine has just been accomplished like this.
The beneficial effect of the utility model is, has guaranteed operability and stationarity that offshore wind turbine is installed, can effectively guarantee installation precision, and the reduction wave jolts offshore wind turbine is installed the influences such as collision that caused.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model a structural representation.
Fig. 2 is the another kind of embodiment's of the utility model a structural representation.
Fig. 3 is the another kind of embodiment's of the utility model a following supporting frame plan structure schematic representation.
Fig. 4 is the upright arm configuration schematic representation of the another kind of embodiment's of the utility model guiding.
Mark among the figure: supporting frame under the 1-; The 2-flexibility is accepted parts; The upright arm of 3-guiding; The 4-hangers; 5-pin-and-hole seat; The 6-external support component; 7-over sling member; The 8-positioning element; The 9-lifting part; The 10-inner ring; 11-upper column tube; 12-bottom tower tube.
Embodiment
Below in conjunction with accompanying drawing, the more excellent embodiment of the utility model is done further detailed description.
Embodiment 1:
As shown in Figure 1; This example provides a kind of installation flexibility of offshore wind turbine to accept and alignment device; Comprise: over sling member 7; Said over sling member 7 comprises external support component 6, positioning element 8, lifting part 9 and inner ring 10, and said over sling member 7 is connected to the upper column tube 11 of offshore wind turbine through inner ring 10, and said positioning element 8 is arranged at respectively on the external support component 6 of over sling member 7 with lifting part 9; And; Following supporting frame 1; Said supporting frame 1 down hangs on the bottom tower tube 12 of offshore wind turbine; Comprise that flexibility accepts parts 2 and location aligning parts, said flexibility is accepted parts 2 and is comprised the hydraulic jack and the accumulator that go up and down simultaneously, and said location aligning parts is arranged at down on the circumference of supporting frame 1.
Wherein, offshore wind turbine is an offshore wind generating, and said over sling member 7 is a circular structure; Said positioning element 8 is arranged on the external support component 6 of over sling member 7 with lifting part 9, is convenient to convenient lifting and location; Said inner ring 10 preferably links to each other through some bolts with blower fan upper column tube 11; Said down supporting frame 1 cylindrical structure comprises the two halves column part of symmetry, is convenient to be suspended on the bottom tower tube 12 of offshore wind turbine, comprises that flexibility accepts parts 2 and location aligning parts; Flexibility is accepted oil cylinder and the accumulator that parts 2 comprise up-down simultaneously, plays jacking, cushions and follow effect, is preferably the oil cylinder and the accumulator that comprise that six covers go up and down simultaneously; The location aligning parts is realized the accurate contraposition of the upper column tube 11 and the bottom tower tube 12 of offshore wind turbine; The positioning element 8 of said location aligning parts and over sling member 7 cooperates realizes accurately location.
This routine advantage is; At sea the upper column tube 11 of blower fan is installed in the docking operation with bottom tower tube 12; Oil cylinder through on the following supporting frame 1 plays buffering and jacking effect, and to reduce the influence of wave, hold and accept over sling member 7 simultaneously through it whole with offshore wind turbine; Can effectively reduce wave to the offshore wind turbine installation influence, also can realize that the contraposition of offshore wind turbine is installed simultaneously comparatively accurately.
Embodiment 2:
Extremely shown in Figure 4 like Fig. 2; Different with embodiment 1 is; This routine said location aligning parts comprises coarse positioning spare and fine positioning spare, and said fine positioning spare is corresponding one by one with positioning element 8, and said coarse positioning spare is preferably the upright arm 3 of guiding; Upright arm 3 tops of said guiding lean outward, and the structural representation of the upright arm 3 of guiding is as shown in Figure 4.
This example roughly positions whole hoisting structure through said coarse positioning spare with bottom tower tube 12; Said coarse positioning spare is preferably the upright arm 3 of guiding; And be arranged at down on the circumference of supporting frame 1, upright arm 3 tops of said guiding lean outward, and are convenient to realize preliminary guiding and location; In addition; Said location aligning parts also comprises and positioning element 8 fine positioning spare one to one; Can effectively reduce wave to the offshore wind turbine installation influence; On this basis, install with realizing the contraposition of comparatively accurate offshore wind turbine cooperating of over sling member 7 through coarse positioning spare and fine positioning spare.
Said supporting frame down preferably is equipped with three upright arms 3 of guiding on its 120 ° of circumference, the top of the upright arm 3 of guiding all slightly leans outward.
The further improvement of this example is that said positioning element 8 is an alignment pin.Said alignment pin is preferably a pair of symmetry and is distributed in the conical dowel pin axle on the lower support frame member, is convenient to realize better the location, promotes the accurate contraposition of upper column tube 11 and bottom tower tube 12.
The further improvement of this example is, said fine positioning spare is and alignment pin pin-and-hole seat 5 one to one.Said pin-and-hole seat 5 is corresponding one by one with the alignment pin of over sling member 7; Preferably; Be distributed with the vertically arranged oil cylinder of two covers on the said pin-and-hole seat 5; Can cash sale hole seat 5 in horizontal plane, move, according to the accurate contraposition of control upper column tube 11 such as laser rangefinder and diffuse reflection electric system and bottom tower tube 12, the installation of promotion offshore wind turbine.
The further improvement of this example is that said flexibility is accepted parts 2 and comprised six cover hydraulic jacks, and as shown in Figure 3, said hydraulic jack is uniformly distributed in down on the circumference of supporting frame 1.It on the circumference of following supporting frame 1 cable passage; Cable passage is isolated through the fire bulkhead and the outer ring formation of following supporting frame 1; Play the effect that fire prevention is isolated; The effect that this example can play buffering, jacking and follow through equally distributed hydraulic jack has reduced the influence of wave, and it is whole with offshore wind turbine to hold and accept simultaneously over sling member 7.
The further improvement of this example is that said lifting part 9 is a hanger.Said hanger is preferably 2 pairs of hangers that are distributed on the over sling member 7, and the height of every pair of hanger differs, and is convenient to the installation of offshore wind turbine.
The further improvement of this example is that said supporting frame 1 down hangs on the bottom tower tube 12 of offshore wind turbine through hangers 4.
During use; Be fixedly connected the outer ring of offshore wind turbine upper column tube 11 flange in the bottom with the inner ring 10 of over sling member 7 in the land earlier; Be preferably through bolt and fix up, meanwhile, be suspended on supporting frame 1 down on the bottom tower tube 12 of offshore wind turbine; Arrive the erecting bed to offshore wind turbine integral body and over sling member 7 whole Transporting through cargo ship then, through pontoon crane it is hung down again, and install.Through coarse positioning spare; As the upright arm 3 that leads makes whole hoisting structure roughly to position with bottom tower tube 12; Pontoon crane this moment hoisting structure is put down slowly; When hoisting structure and flexibility were accepted parts 2 and contacted, 6 cover hydraulic jacks had begun buffer function, so that the reduction wave is to influence that pontoon crane produced.When being buffered to certain stage, hydraulic jack has begun the jacking effect, begins to hold whole hoisting structure and goes up and down; When whole hoisting structure drops to certain position; Pin-and-hole seat 5 on the following supporting frame 1 cooperates with alignment pin, forms the positioning pin hole structure, and the structural oil cylinder of positioning pin hole begins under the guidance of fine positioning spare, to move; So that realize the inner ring 10 of upper column tube 11 flanges and the fine positioning of bottom tower tube 12 flanges; After accomplish the location, through bolt bottom tower tube 12 and upper column tube 11 are fixed up, the installation of offshore wind turbine has just been accomplished like this.
This routine beneficial effect is, has guaranteed operability and stationarity that offshore wind turbine is installed, can effectively guarantee installation precision, and the reduction wave jolts offshore wind turbine is installed the influences such as collision that caused.
The embodiment of the above is the preferred embodiments of the utility model; It is not the practical implementation scope that limits the utility model with this; The scope of the utility model comprises and is not limited to this embodiment that all shapes according to the utility model, the equivalence that structure is done change all in the protection domain of the utility model.
Claims (10)
1. the installation flexibility of an offshore wind turbine is accepted and alignment device, it is characterized in that, comprising:
The over sling member (7) that is connected with the upper column tube (11) of offshore wind turbine; Said over sling member (7) comprises external support component (6), positioning element (8), lifting part (9) and inner ring (10); Said inner ring (10) is arranged at the inboard of over sling member (7), and said positioning element (8) and lifting part (9) are arranged at respectively on the external support component (6) of over sling member (7); And; Hang on the following supporting frame (1) on the bottom tower tube (12) of offshore wind turbine; Said down supporting frame (1) comprises that flexibility accepts parts (2) and locate aligning parts; Said flexibility is accepted hydraulic jack and the accumulator that parts (2) comprise up-down simultaneously, and said location aligning parts is arranged at down on the circumference of supporting frame (1).
2. the installation flexibility of offshore wind turbine according to claim 1 is accepted and alignment device, it is characterized in that, said over sling member (7) is the ring over sling.
3. the installation flexibility of offshore wind turbine according to claim 1 is accepted and alignment device, it is characterized in that, said location aligning parts comprises coarse positioning spare and fine positioning spare, and said fine positioning spare is corresponding one by one with positioning element (8).
4. the installation flexibility of offshore wind turbine according to claim 3 is accepted and alignment device, it is characterized in that, said coarse positioning spare is the upright arm (3) of guiding, and said guiding is stood arm (3) top and leaned outward.
5. accept and alignment device according to the installation flexibility of claim 3 or 4 described offshore wind turbines, it is characterized in that, said positioning element (8) is an alignment pin.
6. the installation flexibility of offshore wind turbine according to claim 5 is accepted and alignment device, it is characterized in that, said fine positioning spare is and alignment pin pin-and-hole seat (5) one to one.
7. the installation flexibility of offshore wind turbine according to claim 6 is accepted and alignment device, it is characterized in that, is distributed with the vertically arranged oil cylinder of two covers on the said pin-and-hole seat (5).
8. the installation flexibility of offshore wind turbine according to claim 7 is accepted and alignment device, it is characterized in that, said flexibility is accepted parts (2) and comprised six cover hydraulic jacks, and said hydraulic jack is uniformly distributed in down on the circumference of supporting frame (1).
9. accept and alignment device according to the installation flexibility of any described offshore wind turbine of claim 1 to 4, it is characterized in that, said lifting part (9) is a hanger.
10. accept and alignment device according to the installation flexibility of any described offshore wind turbine of claim 1 to 4, it is characterized in that, said supporting frame (1) down hangs on the bottom tower tube (12) of offshore wind turbine through hangers (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201850673U CN202545143U (en) | 2012-04-27 | 2012-04-27 | Flexible socket and alignment device for mounting sea fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201850673U CN202545143U (en) | 2012-04-27 | 2012-04-27 | Flexible socket and alignment device for mounting sea fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545143U true CN202545143U (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201850673U Expired - Fee Related CN202545143U (en) | 2012-04-27 | 2012-04-27 | Flexible socket and alignment device for mounting sea fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545143U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603772A (en) * | 2013-10-30 | 2014-02-26 | 浙江大学 | Guiding and positioning device for tower barrel hoisting and abutting joint of large wind driven generator set |
| CN106836950A (en) * | 2017-04-13 | 2017-06-13 | 国网江苏省电力公司经济技术研究院 | The positioner that a kind of steel tube tower high-altitude is installed |
| CN107631706A (en) * | 2017-08-04 | 2018-01-26 | 湖北三江航天红阳机电有限公司 | A kind of horizontal Butt Assembling method of detecting tool and major diameter cylinder section |
| CN109531086A (en) * | 2018-12-05 | 2019-03-29 | 浙江大学 | One kind is for Big Diameter Flange bolt hole guiding alignment mechanical device and method |
| CN111056420A (en) * | 2019-12-25 | 2020-04-24 | 海阳中集来福士海洋工程有限公司 | Hoisting tool for rotating tower shaft and method for installing rotating tower shaft and rotating tower cylinder |
| CN114060221A (en) * | 2021-11-11 | 2022-02-18 | 江苏亨通蓝德海洋工程有限公司 | Cabin hoisting and butt joint method for offshore wind turbine installation by using floating ship |
| CN114087133A (en) * | 2021-11-17 | 2022-02-25 | 中国水电建设集团新能源开发有限责任公司西北分公司 | Wind-powered electricity generation field tower section of thick bamboo installation positioner |
-
2012
- 2012-04-27 CN CN2012201850673U patent/CN202545143U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603772A (en) * | 2013-10-30 | 2014-02-26 | 浙江大学 | Guiding and positioning device for tower barrel hoisting and abutting joint of large wind driven generator set |
| CN103603772B (en) * | 2013-10-30 | 2016-02-17 | 浙江大学 | Large-scale Wind Turbines tower cylinder lifting docking guiding locator |
| CN106836950A (en) * | 2017-04-13 | 2017-06-13 | 国网江苏省电力公司经济技术研究院 | The positioner that a kind of steel tube tower high-altitude is installed |
| CN107631706A (en) * | 2017-08-04 | 2018-01-26 | 湖北三江航天红阳机电有限公司 | A kind of horizontal Butt Assembling method of detecting tool and major diameter cylinder section |
| CN107631706B (en) * | 2017-08-04 | 2020-04-21 | 湖北三江航天红阳机电有限公司 | Detection tool and large-diameter cylinder section horizontal butt joint assembly method |
| CN109531086A (en) * | 2018-12-05 | 2019-03-29 | 浙江大学 | One kind is for Big Diameter Flange bolt hole guiding alignment mechanical device and method |
| CN111056420A (en) * | 2019-12-25 | 2020-04-24 | 海阳中集来福士海洋工程有限公司 | Hoisting tool for rotating tower shaft and method for installing rotating tower shaft and rotating tower cylinder |
| CN114060221A (en) * | 2021-11-11 | 2022-02-18 | 江苏亨通蓝德海洋工程有限公司 | Cabin hoisting and butt joint method for offshore wind turbine installation by using floating ship |
| CN114060221B (en) * | 2021-11-11 | 2024-02-06 | 江苏亨通蓝德海洋工程有限公司 | Cabin hoisting and docking method for offshore wind turbine installation by floating ship |
| CN114087133A (en) * | 2021-11-17 | 2022-02-25 | 中国水电建设集团新能源开发有限责任公司西北分公司 | Wind-powered electricity generation field tower section of thick bamboo installation positioner |
| CN114087133B (en) * | 2021-11-17 | 2023-06-06 | 中国水电建设集团新能源开发有限责任公司西北分公司 | Wind power plant tower barrel installation positioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20190427 |