CN113972803B - Wind-powered electricity generation motor installing the system - Google Patents
Wind-powered electricity generation motor installing the system Download PDFInfo
- Publication number
- CN113972803B CN113972803B CN202111229975.8A CN202111229975A CN113972803B CN 113972803 B CN113972803 B CN 113972803B CN 202111229975 A CN202111229975 A CN 202111229975A CN 113972803 B CN113972803 B CN 113972803B
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- Prior art keywords
- frame
- stacking
- wind power
- supporting seat
- sliding
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- 230000005611 electricity Effects 0.000 title abstract description 3
- 238000009434 installation Methods 0.000 claims abstract description 23
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 12
- 238000010248 power generation Methods 0.000 abstract description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to the technical field of wind power generation, in particular to a wind power motor installation system; the top of supporting seat is provided with the centre bore, stacks the quantity of frame and is two, two stacks the frame and dismantle with the supporting seat respectively and be connected to set up in the both sides of centre bore respectively, and all be located the top of supporting seat, the quantity of carriage is two, two carriages set up respectively in the top of corresponding stacking the frame, the quantity of mount is two, two mounts rotate with corresponding carriage respectively and be connected, and be located the one side that the carriage that corresponds is close to the centre bore respectively, move the dead lever to between two stacking the frame earlier through the tower crane, utilize the mount to fix the dead lever, reuse tower crane upwards lifts up the dead lever, make the top orientation below of dead lever, working height has been reduced, thereby the security of installation wind-powered electricity generation motor has been improved.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a wind power motor installation system.
Background
The wind power motor is power equipment for converting wind energy into mechanical work, the mechanical work drives a rotor to rotate and finally outputs alternating current, and the wind power generator generally comprises a wind wheel, a generator (comprising a device), a direction regulator (tail wing), a fixed rod, a speed limiting safety mechanism, an energy storage device and the like; when the wind power motor is installed, the wind power motor is installed from bottom to top, after the fixing rod is fixed, other equipment is moved to the top end of the fixing rod through the tower crane, and the wind power motor is installed manually.
In the existing wind power motor installation process, workers need to be sent to the top end of the fixing rod and enter the hood to perform high-altitude operation, safety measures are few, and accidents are easy to occur.
Disclosure of Invention
The invention aims to provide a wind power motor installation system, which aims to solve the technical problems that in the wind power motor installation process in the prior art, workers need to be sent to the top end of a fixed rod to enter a hood for overhead operation, safety measures are fewer, and accidents are easy to occur.
In order to achieve the above purpose, the invention provides a wind power motor installation system, which comprises a supporting seat, two stacking frames, two sliding frames, a fixing frame and an auxiliary supporting component, wherein the top end of the supporting seat is provided with a central hole, the two stacking frames are respectively connected with the supporting seat in a disassembling way and are respectively arranged on two sides of the central hole and are respectively positioned above the supporting seat, the two sliding frames are respectively arranged above the corresponding stacking frames, the two fixing frames are respectively connected with the corresponding sliding frames in a rotating way and are respectively positioned on one side of the corresponding sliding frames close to the central hole;
the auxiliary support assembly comprises an upper clamping ring, a lower clamping ring, a tail lifting ring and a blocking frame, wherein the upper clamping ring, the lower clamping ring and the tail lifting ring are welded on the outer side wall of the fixed rod, the tail lifting ring is located at the bottom of the fixed rod, the lower clamping ring is located above the tail lifting ring, the upper clamping ring is located above the lower clamping ring, and the blocking frame is arranged above the supporting seat.
The fixing frame is used for fixing the fixing rod, and the fixing rod is lifted upwards by the tower crane, so that the top end of the fixing rod faces downwards, the working height is reduced, and the safety of installing the wind power motor is improved.
The top of the supporting seat is provided with two first clamping grooves, and the two first clamping grooves are respectively arranged on two sides of the central hole.
And the first clamping groove is used for installing the stacking blocks, and the tower crane is used for preventing the stacking blocks from being above the first clamping groove one by one.
Each stacking frame is composed of a plurality of stacking blocks, and each stacking block is stacked above the corresponding first clamping groove.
The whole height of the stacking frame is increased through the stacking blocks, the working height can be adjusted according to actual conditions, and the stacking frame is convenient to transport after being disassembled.
Each sliding frame comprises a first clamping plate, a bottom plate, sliding blocks, rubber wheels and auxiliary supporting plates, wherein the first clamping plates are clamped with the stacking frames and are located above the stacking frames, the bottom plates are fixedly connected with the first clamping plates and located above the first clamping plates, sliding grooves are formed in the top ends of the bottom plates, limiting grooves are formed in two sides of the sliding grooves, the sliding blocks are arranged in the sliding grooves, the number of the rubber wheels is multiple, each rubber wheel is evenly arranged at the bottom of each sliding block at intervals, the number of the auxiliary supporting plates is two, and the two auxiliary supporting plates are respectively arranged on two sides of the sliding blocks and are respectively located in the corresponding limiting grooves.
The sliding frame is installed above the stacking frame through the first clamping plate, when the tower crane drives the fixing rod to rotate, the rubber wheel is stressed, the sliding block drives the auxiliary supporting plate to descend, the bottom of the auxiliary supporting plate is in contact with the limiting groove, supporting force is provided for the sliding block, and the rubber wheel is prevented from being damaged.
The fixing frame comprises a rotating rod, semicircular rings and connecting plates, wherein the rotating hole is formed in one side, close to the central hole, of the sliding block, the rotating rod is connected with the sliding block in a rotating mode and located in the rotating hole, the semicircular rings are fixedly connected with the rotating rod and located on one side, close to the central hole, of the rotating rod, the number of the connecting plates is two, two connecting plates are respectively arranged on two sides of the semicircular rings, and a plurality of mounting holes are formed in the outer side wall of each connecting plate.
When the wind power motor is installed, the sliding block moves towards the direction of the fixing rod, the semicircular rings on two sides are contacted, the fixing rod is clamped, and then the semicircular rings are fixed by using bolts to penetrate through the installation holes.
The blocking frame comprises two upright posts and insertion rods, wherein the number of the upright posts is two, the two upright posts are arranged at the top end of the supporting seat, insertion holes are formed in the top end of each upright post, and the insertion rods are respectively and movably connected with the two insertion rods and are located between the two insertion rods.
When the dead lever is directed downwards, will the insert the pole inserts the patchhole, make the insert the pole be located the top of dead lever, play the barrier effect, prevent that the tower crane accident from breaking away from when afterbody rings, the dead lever rotates too fast, leads to equipment damage.
According to the wind power motor installation system, when a wind power motor is installed, the fixing rods are moved between the two stacking frames through the tower crane, the fixing rods are fixed through the fixing frames, the tower crane is connected with the tail hanging rings, the fixing rods are lifted upwards, the fixing rods rotate upwards through the fixing frames until the top ends of the fixing rods face downwards, the blocking frames are moved to the positions above the fixing rods to limit, workers install a generator, a wind wheel and other equipment, after the installation is completed, the fixing rods are put down by the tower crane, the bottom of the fixing rods is enabled to be located above the central holes due to the fact that the weight of the bottom of the fixing rods is large, concrete pouring is conducted in the central holes, fixing of the fixing rods is completed, installation is completed, and through the structure, the working height is reduced, and safety is improved.
Drawings
Fig. 1 is a perspective view of a wind power motor installation system provided by the invention.
Fig. 2 is an enlarged view of a partial structure at a of fig. 1 provided by the present invention.
Fig. 3 is an enlarged view of a partial structure at B of fig. 1 provided by the present invention.
Fig. 4 is a cross-sectional view of a stacked block provided by the present invention.
Fig. 5 is a side view of a carriage provided by the present invention.
Fig. 6 is a perspective view of a support base provided by the present invention.
1-supporting seat, 11-centre hole, 12-first draw-in groove, 2-stack frame, 21-stack piece, 211-second joint board, 212-roof, 213-second draw-in groove, 214-hanging frame, 3-carriage, 31-first joint board, 32-bottom plate, 33-sliding block, 34-rubber wheel, 35-auxiliary supporting plate, 36-sliding groove, 37-spacing groove, 38-rotation hole, 4-mount, 41-rotation pole, 42-semicircle ring, 43-connecting plate, 44-mounting hole, 5-auxiliary supporting component, 51-upper clasp, 52-lower clasp, 53-afterbody rings, 54-blocking frame, 541-stand column, 542-insert rod, 543-insert hole, 6-pouring shell, 7-fixed rod.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Referring to fig. 1 to 6, the present invention provides a wind power motor installation system, which includes a supporting seat 1, a stacking rack 2, a sliding rack 3, a fixing rack 4 and an auxiliary supporting component 5, wherein the top end of the supporting seat 1 is provided with a central hole 11, the number of the stacking racks 2 is two, the two stacking racks 2 are respectively detachably connected with the supporting seat 1 and are respectively arranged at two sides of the central hole 11 and are respectively positioned above the supporting seat 1, the number of the sliding racks 3 is two, the two sliding racks 3 are respectively arranged above the corresponding stacking racks 2, the number of the fixing racks 4 is two, the two fixing racks 4 are respectively rotatably connected with the corresponding sliding racks 3 and are respectively positioned at one side of the corresponding sliding racks 3 close to the central hole 11; the auxiliary support assembly 5 comprises an upper clamping ring 51, a lower clamping ring 52, a tail lifting ring 53 and a blocking frame 54, wherein the upper clamping ring 51, the lower clamping ring 52 and the tail lifting ring 53 are welded on the outer side wall of the fixed rod 7, the tail lifting ring 53 is positioned at the bottom of the fixed rod 7, the lower clamping ring 52 is positioned above the tail lifting ring 53, the upper clamping ring 51 is positioned above the lower clamping ring 52, and the blocking frame 54 is arranged above the support seat 1.
In this embodiment, when the wind power generator is installed, the fixing rod 7 is moved to the space between the two stacking frames 2 by the tower crane, the fixing frame 4 is used to fix the fixing rod 7, the upper clamping ring 51 is located above the fixing frame 4, the lower clamping ring 52 is located below the fixing frame 4, the tower crane is connected with the tail lifting ring 53, the fixing rod 7 is lifted upwards, the fixing rod 7 passes through the fixing frame 4 to rotate upwards until the top end of the fixing rod 7 faces downwards, the blocking frame 54 is moved to the upper side of the fixing rod 7 to limit, the staff performs installation of the generator, the wind wheel and other devices, after the installation is completed, the tower crane puts down the fixing rod 7, and because the bottom of the fixing rod 7 is heavy, the lower clamping ring 51 is rotated downwards, the bottom of the fixing rod 7 is located above the central hole 11, concrete is fixed inside the central hole 11, the installation is completed, the working height is reduced, and the safety is improved.
Further, a first clamping groove 12 is formed in the top end of the supporting seat 1, the number of the first clamping grooves 12 is two, and the two first clamping grooves 12 are respectively formed in two sides of the central hole 11; each stacking rack 2 is composed of a plurality of stacking blocks 21, and each stacking block 21 is stacked above the corresponding first clamping groove 12.
In this embodiment, by providing the first clamping groove 12 for installing the stacking blocks 21, the stacking blocks 21 are prevented from being above the first clamping groove 12 one by using a tower crane, the overall height of the stacking frame 2 is increased by a plurality of stacking blocks 21, the working height can be adjusted according to actual conditions, and the stacking frame 2 is convenient to transport after being disassembled.
Further, each sliding frame 3 includes a first clamping plate 31, a bottom plate 32, sliding blocks 33, rubber wheels 34 and auxiliary supporting plates 35, the first clamping plate 31 is clamped with the stacking frame 2 and is located above the stacking frame 2, the bottom plate 32 is fixedly connected with the first clamping plate 31 and is located above the first clamping plate 31, a sliding groove 36 is formed in the top end of the bottom plate 32, limiting grooves 37 are formed in two sides of the sliding groove 36, the sliding blocks 33 are arranged in the sliding grooves 36, the number of the rubber wheels 34 is multiple, each rubber wheel 34 is uniformly arranged at the bottom of the sliding block 33 at intervals, the number of the auxiliary supporting plates 35 is two, and the two auxiliary supporting plates 35 are respectively arranged on two sides of the sliding block 33 and are respectively located in the corresponding limiting grooves 37; the fixing frame 4 comprises a rotating rod 41, semicircular rings 42 and connecting plates 43, wherein the rotating holes 38 are formed in one side, close to the central hole 11, of the sliding block 33, the rotating rod 41 is connected with the sliding block 33 in a rotating mode and located inside the rotating holes 38, the semicircular rings 42 are fixedly connected with the rotating rod 41 and located on one side, close to the central hole 11, of the rotating rod 41, the number of the connecting plates 43 is two, two connecting plates 43 are respectively arranged on two sides of the semicircular rings 42, and a plurality of mounting holes 44 are formed in the outer side wall of each connecting plate 43.
In this embodiment, when the first clamping plate 31 is used to mount the sliding frame 3 above the stacking frame 2 and the wind power motor is mounted, the sliding block 33 is moved toward the direction of the fixing rod 7, the semicircular rings 42 on both sides are contacted, the fixing rod 7 is clamped, the semicircular rings 42 are fixed by using bolts through the mounting holes 44, when the tower crane drives the fixing rod 7 to rotate, the rubber wheel 34 is pressed, the sliding block 33 drives the auxiliary supporting plate 35 to descend, the bottom of the auxiliary supporting plate 35 is contacted with the limiting groove 37, and a supporting force is provided for the sliding block 33 to prevent the rubber wheel 34 from being damaged.
Further, the blocking frame 54 includes two columns 541 and insertion rods 542, the two columns 541 are respectively disposed at the top ends of the supporting base 1, each of the top ends of the columns 541 is provided with an insertion hole 543, and the insertion rods 542 are respectively movably connected with the two insertion rods 542 and are located between the two insertion rods 542.
In this embodiment, when the fixing rod 7 is oriented downward, the insertion rod 542 is inserted into the insertion hole 543, so that the insertion rod 542 is located above the fixing rod 7, which plays a role in blocking, and when the tower crane accidentally breaks away from the tail suspension ring 53, the fixing rod 7 rotates too fast, resulting in damage to the equipment.
Further, each stacking block 21 includes a second clamping plate 211 and a top plate 212, the second clamping plates 211 are fixedly connected with the top plate 212 and are located below the top plate 212, a second clamping groove 213 is formed in the top end of the top plate 212, and the second clamping plates 211 at the bottom are arranged in the first clamping groove 12.
In this embodiment, the first clamping plate 31 is clamped with the second clamping groove 213 at the top end, and the second clamping plate 211 is clamped with the top plate 212 adjacent to the lower part, and is placed one by the tower crane, so that the disassembly and the installation are convenient.
Further, each stacking block 21 further includes a hanging frame 214, where the hanging frame 214 is fixedly connected to the bottom plate 32 and located above the second clamping groove 213.
In this embodiment, by providing the hanging frame 214, the hanging hook of the tower crane and the hanging frame 214 are engaged, so that the stacking block 21 is lifted, and when the tower crane is mounted, the hanging frame 214 is located in the second clamping groove 213 above.
Further, the wind power motor installation system further comprises a pouring shell 6, wherein the pouring shell 6 is detachably connected with the central hole 11 and is located above the central hole 11.
In the present embodiment, when concrete is poured, the pouring shell 6 is enclosed outside the center hole 11 to define the shape of the concrete, and after the concrete pouring is completed, the pouring shell 6 is detached.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present invention.
Claims (6)
1. A wind power motor installation system is characterized in that,
the wind power motor installation system comprises a supporting seat, two stacking frames, two sliding frames, a fixing frame and an auxiliary supporting component arranged on a fixing rod, wherein the top end of the supporting seat is provided with a central hole, the stacking frames are respectively connected with the supporting seat in a disassembling mode and are respectively arranged on two sides of the central hole and are respectively positioned above the supporting seat, the sliding frames are respectively arranged above the corresponding stacking frames, the fixing frames are respectively connected with the corresponding sliding frames in a rotating mode and are respectively positioned on one side, close to the central hole, of the corresponding sliding frames;
the auxiliary support assembly comprises an upper clamping ring, a lower clamping ring, a tail lifting ring and a blocking frame, wherein the upper clamping ring, the lower clamping ring and the tail lifting ring are welded on the outer side wall of the fixed rod, the tail lifting ring is located at the bottom of the fixed rod, the lower clamping ring is located above the tail lifting ring, the upper clamping ring is located above the lower clamping ring, and the blocking frame is arranged above the supporting seat.
2. A wind power installation system according to claim 1, wherein,
the top of supporting seat is provided with first draw-in groove, the quantity of first draw-in groove is two, two first draw-in groove set up respectively in the both sides of centre bore.
3. A wind power installation system according to claim 2, wherein,
each stacking frame is composed of a plurality of stacking blocks, and each stacking block is stacked above the corresponding first clamping groove.
4. A wind power installation system according to claim 3, wherein,
every the carriage all includes first joint board, bottom plate, sliding block, rubber wheel and auxiliary support board, first joint board with pile up the frame joint, and be located pile up the top of frame, the bottom plate with first joint board fixed connection, and be located the top of first joint board, the top of bottom plate is provided with the sliding tray, the both sides of sliding tray all are provided with the spacing groove, the sliding block set up in the inside of sliding tray, the quantity of rubber wheel is a plurality of, every the rubber wheel interval evenly set up in the bottom of sliding block, the quantity of auxiliary support board is two, two auxiliary support board set up respectively in the both sides of sliding block, and be located respectively corresponding the inside of spacing groove.
5. A wind power installation system according to claim 4, wherein,
the fixing frame comprises a rotating rod, semicircular rings and connecting plates, wherein one side, close to the central hole, of each sliding block is provided with a rotating hole, each rotating rod is connected with each sliding block in a rotating mode and located in each rotating hole, each semicircular ring is fixedly connected with each rotating rod and located on one side, close to the central hole, of each rotating rod, the number of the connecting plates is two, two connecting plates are respectively arranged on two sides of each semicircular ring, and a plurality of mounting holes are formed in the outer side wall of each connecting plate.
6. A wind power installation system according to claim 5, wherein,
the blocking frame comprises two upright posts and insertion rods, wherein the number of the upright posts is two, the two upright posts are arranged at the top end of the supporting seat, insertion holes are formed in the top end of each upright post, and the insertion rods are respectively and movably connected with the two insertion rods and are positioned between the two insertion rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111229975.8A CN113972803B (en) | 2021-10-20 | 2021-10-20 | Wind-powered electricity generation motor installing the system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111229975.8A CN113972803B (en) | 2021-10-20 | 2021-10-20 | Wind-powered electricity generation motor installing the system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113972803A CN113972803A (en) | 2022-01-25 |
| CN113972803B true CN113972803B (en) | 2023-12-05 |
Family
ID=79587829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111229975.8A Active CN113972803B (en) | 2021-10-20 | 2021-10-20 | Wind-powered electricity generation motor installing the system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113972803B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163675A (en) * | 2003-12-03 | 2005-06-23 | Masami Fujiwara | Stand for installation of small aerogenerator |
| CN101769088A (en) * | 2010-02-09 | 2010-07-07 | 江苏方盛电力通信工程有限公司 | Single-pipe communication tower with wind power generation device |
| CN207104810U (en) * | 2017-09-12 | 2018-03-16 | 中国神华能源股份有限公司 | Hydraulic cylinder flange attaching/detaching apparatus |
| CN110451404A (en) * | 2019-08-24 | 2019-11-15 | 中船重工电机科技股份有限公司 | The simple turnover mechanism and method for turning of Large Rotor |
| CN110576412A (en) * | 2019-10-21 | 2019-12-17 | 中船动力研究院有限公司 | Bracket and use method |
| KR20200114332A (en) * | 2019-03-28 | 2020-10-07 | 두산중공업 주식회사 | Jig apparatus |
| CN112152403A (en) * | 2020-09-29 | 2020-12-29 | 中广核核电运营有限公司 | Nuclear power station main pump motor rotor turning device |
-
2021
- 2021-10-20 CN CN202111229975.8A patent/CN113972803B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005163675A (en) * | 2003-12-03 | 2005-06-23 | Masami Fujiwara | Stand for installation of small aerogenerator |
| CN101769088A (en) * | 2010-02-09 | 2010-07-07 | 江苏方盛电力通信工程有限公司 | Single-pipe communication tower with wind power generation device |
| CN207104810U (en) * | 2017-09-12 | 2018-03-16 | 中国神华能源股份有限公司 | Hydraulic cylinder flange attaching/detaching apparatus |
| KR20200114332A (en) * | 2019-03-28 | 2020-10-07 | 두산중공업 주식회사 | Jig apparatus |
| CN110451404A (en) * | 2019-08-24 | 2019-11-15 | 中船重工电机科技股份有限公司 | The simple turnover mechanism and method for turning of Large Rotor |
| CN110576412A (en) * | 2019-10-21 | 2019-12-17 | 中船动力研究院有限公司 | Bracket and use method |
| CN112152403A (en) * | 2020-09-29 | 2020-12-29 | 中广核核电运营有限公司 | Nuclear power station main pump motor rotor turning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113972803A (en) | 2022-01-25 |
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Denomination of invention: A wind turbine installation system Granted publication date: 20231205 Pledgee: Chongqing Rural Commercial Bank Co.,Ltd. Yongchuan sub branch Pledgor: CHONGQING YINGZHOU DIE-CASTING CO.,LTD. Registration number: Y2024980021826 |