CN114180443A - Blade hoisting adjusting device for wind driven generator - Google Patents
Blade hoisting adjusting device for wind driven generator Download PDFInfo
- Publication number
- CN114180443A CN114180443A CN202010967482.3A CN202010967482A CN114180443A CN 114180443 A CN114180443 A CN 114180443A CN 202010967482 A CN202010967482 A CN 202010967482A CN 114180443 A CN114180443 A CN 114180443A
- Authority
- CN
- China
- Prior art keywords
- blade
- slide rail
- sides
- spacing slide
- gear
- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/108—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means for lifting parts of wind turbines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/185—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use erecting wind turbines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C7/00—Runways, tracks or trackways for trolleys or cranes
- B66C7/08—Constructional features of runway rails or rail mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/40—Arrangements or methods specially adapted for transporting wind motor components
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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
Abstract
A blade hoisting adjusting device for a wind driven generator comprises two blade clamps, a tower top bracket and a hanging beam; a lifting machine is arranged above the tower top support and is connected with the fixed disc through a lifting rope; the hanging beam comprises a rotating frame, a bearing inner ring, a bearing outer ring and a fixed disc, a gear rack is arranged on the inner side of the bearing inner ring, a driving motor is installed on the fixed disc, and the driving end of the driving motor is meshed with the gear rack through a gear; two sides of the upper surface of the rotating frame are connected with winches which are connected to the blade clamp through steel wire ropes. The invention overcomes the defects of the prior art, and drives the bearing inner ring to rotate through the meshing relationship of the gear and the gear rack, so as to drive the fan blades to rotate together in the horizontal direction, so that the fan blades can be placed below the tower cylinder in parallel before being hoisted, thereby greatly shortening the length of the top bracket of the fan tower, reducing the load, reducing the structural material, and simultaneously reducing the operation space, so as to facilitate the hoisting work of the fan blades.
Description
Technical Field
The invention relates to the technical field of blade hoisting of a fan, in particular to a blade hoisting adjusting device for a wind driven generator.
Background
With the increasing development of offshore wind power, the market demand for replacement and maintenance of large parts of offshore wind turbines is also sharply increased. As offshore wind power is far from land, "large part replacement difficulty" has become a common problem facing offshore wind power worldwide.
The large offshore part is replaced by a hoisting ship with supporting legs. According to research, in China, the cost of renting a landing leg hoisting boat is about 300 million RMB every time a large part of an offshore wind turbine is replaced. At present, the domestic landing leg ship has insufficient preservation quantity and high use cost, and becomes the bottleneck of cost reduction in the replacement operation of offshore wind turbine components; and since the offshore working area is very limited, it is also difficult to place and install the blades of the long wind power generator.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a blade hoisting adjusting device for a wind driven generator, which overcomes the defects of the prior art, is reasonable in design, and can drive a bearing inner ring corresponding to a gear rack to rotate through a driving motor through the meshing relationship between a gear and the gear rack, so as to drive a rotating frame and a fan blade below to rotate together in the horizontal direction; the fan blades can be placed below the tower barrel in parallel before hoisting, so that the length of a tower top bracket of the fan can be greatly shortened, the load is reduced, the structural material is reduced, and meanwhile, the operation space can be reduced, so that the hoisting work at sea is facilitated. And the invention is also suitable for hoisting the wind power blade on land.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a blade hoisting adjusting device for a wind driven generator comprises two blade clamps, a tower top bracket and a hanging beam, wherein the two blade clamps are respectively and fixedly arranged on two sides of a gravity center point of a fan blade, and hanging rings are fixedly arranged on the surfaces of the two sides of each blade clamp; the tower top support is fixedly arranged in a cabin of the fan, two sides of the upper surface of the tower top support are movably connected with a hoisting machine, and the driving ends of the hoisting machine are connected with one end of a hoisting rope; the lifting beam comprises a rotating frame, a bearing inner ring, a bearing outer ring and a fixed disc, wherein the rotating frame is fixedly arranged below the bearing inner ring, the bearing inner ring is matched with the bearing outer ring, the fixed disc is fixedly arranged above the bearing outer ring, the other end of the lifting rope is fixedly connected above the fixed disc, a gear strip is arranged on the inner side surface of the bearing inner ring, a driving motor is fixedly arranged at the eccentric position of the upper surface of the fixed disc, a driving end of the driving motor penetrates through the fixed disc and is fixedly provided with a gear, and the gear is meshed with the gear strip; and two sides of the upper surface of the rotating frame are movably connected with winches, the driving ends of the winches are respectively connected with one ends of steel wire ropes, and the other ends of the steel wire ropes are fixedly connected to hanging rings on two sides of the blade clamp.
Preferably, the equal fixed mounting in top of the tower support upper surface both sides has moving guide, every equal sliding connection has a sliding block in the moving guide, every moving guide's the equal fixed mounting in both ends has flexible motor, every flexible motor's flexible end respectively with a sliding block fixed connection, lifting machine fixed mounting is in the sliding block top.
Preferably, spacing slide rails have all been seted up to rotating turret upper surface both sides, spacing slide rail includes first spacing slide rail and the spacing slide rail of second, first spacing slide rail and the spacing slide rail of second are located the left and right sides of fixed disk respectively, the bar slotted hole has been seted up to first spacing slide rail and the spacing slide rail internal surface below of second, sliding connection has spacing slider in first spacing slide rail and the spacing slide rail of second, hoist engine fixed mounting is on spacing slider, wire rope passes bar slotted hole fixed connection on the rings of blade anchor clamps both sides.
Preferably, a rubber pad is fixedly mounted on the inner surface of the blade clamp.
The invention provides a blade hoisting adjusting device for a wind driven generator. The method has the following beneficial effects: through the meshing relationship of the gear and the gear rack, the bearing inner ring corresponding to the gear rack can be driven to rotate by the driving motor, and then the rotating frame and the fan blade below the rotating frame are driven to rotate together in the horizontal direction; the fan blades can be placed below the tower cylinder in parallel before hoisting, so that the length of a tower top bracket of the fan can be greatly shortened, the load is reduced, the structural material is reduced, and meanwhile, the operation space can be reduced, so that the hoisting work at sea is facilitated; then, the winch is controlled to release the steel wire rope far away from the blade root or tighten the steel wire rope close to the blade root, so that the blade can be driven to rotate in the vertical direction to be adjusted to a proper installation angle; the whole process does not need large-scale hoisting equipment, and the cost for replacing the blades is greatly saved.
Drawings
In order to more clearly illustrate the present invention or the prior art solutions, the drawings that are needed in the description of the prior art will be briefly described below.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the blade of the present invention after rotating in the horizontal direction;
FIG. 3 is a schematic view of the structure of the tower top support of the present invention;
FIG. 4 is a schematic view of the construction of the suspension beam of the present invention;
FIG. 5 is a top view of the suspension beam of the present invention;
FIG. 6 is a schematic view of the structure of the inner race and the outer race of the bearing of the present invention;
the reference numbers in the figures illustrate:
1. a blade clamp; 2. a tower top support; 3. a hanging beam; 4. a hoisting ring; 5. a hoist; 6. lifting a rope; 7. a winch; 8. a wire rope; 9. a slider; 10. a telescopic motor; 11. a moving guide rail; 12. a first limiting slide rail; 13. a second limiting slide rail; 14. a slotted hole; 15. a limiting slide block; 31. a rotating frame; 32. a bearing inner race; 33. a bearing outer race; 34. fixing the disc; 35. a gear rack; 36. a drive motor; 37. a gear.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings.
In a first embodiment, as shown in fig. 1 to 6, a blade hoisting adjusting device for a wind turbine generator includes two blade clamps 1, a tower top bracket 2 and a hanging beam 3, wherein the two blade clamps 1 are respectively and fixedly installed at two sides of a gravity center point of a fan blade, and hanging rings 4 are fixedly installed on surfaces of two sides of each blade clamp 1; the tower top support 2 is fixedly arranged in a cabin of the fan, two sides of the upper surface of the tower top support 2 are movably connected with a hoisting machine 5, and the driving ends of the hoisting machine 5 are connected with one end of a hoisting rope 6; the hanging beam 3 comprises a rotating frame 31, a bearing inner ring 32, a bearing outer ring 33 and a fixed disc 34, the rotating frame 31 is fixedly arranged below the bearing inner ring 32, the bearing inner ring 32 is matched with the bearing outer ring 33, the fixed disc 34 is fixedly arranged above the bearing outer ring 33, the other end of the lifting rope 6 is fixedly connected above the fixed disc 34, a gear strip 35 is arranged on the inner side surface of the bearing inner ring 32, a driving motor 36 is fixedly arranged at the eccentric position of the upper surface of the fixed disc 34, a driving end of the driving motor 36 penetrates through the fixed disc 34 and is fixedly provided with a gear 37, and the gear 37 is meshed with the gear strip 35; both sides of the upper surface of the rotating frame 31 are movably connected with a winch 7, the driving end of the winch 7 is connected with one end of a steel wire rope 8, and the other end of the steel wire rope 8 is fixedly connected to the hanging rings 4 on both sides of the blade clamp 1.
The working principle is as follows: when the fan blade clamping device is used, the fan blade can be transversely placed below a tower barrel, the two blade clamps 1 are fixed on the fan blade, the positions of the two blade clamps 1 are distributed on two sides of a gravity center point of the fan blade, and the other ends of the steel wire ropes 8 are connected to the hanging rings 4 on two sides of the two blade clamps 1 respectively. During hoisting, the hoisting rope 6 is pulled by controlling the hoisting machine 5 to hoist the whole hoisting beam 3 and the fan blade to a certain altitude, then the driving motor 36 is controlled to drive the gear 37 to rotate, and the gear 37 is meshed with the gear strip 35, so that the bearing inner ring 32 corresponding to the gear strip 35 is driven to rotate relative to the bearing outer ring 33, and then the rotating frame 31 and the fan blade below are driven to rotate together to a proper angle in the horizontal direction; then controlling the winch 7 to release the steel wire rope 8 far away from the blade root or tighten the steel wire rope 8 close to the blade root so as to drive the blade to rotate in the vertical direction and adjust to a proper installation angle, controlling the hoister 5 to synchronously pull the lifting rope 6 upwards, and controlling the hoister 5 to move towards the cabin direction so as to ensure that the fan blade can move to the tower top installation position to complete the installation and fastening work of the blade root; after the installation is finished, the blade clamp 1 is loosened, and the blade clamp, the hanging beam 3 and other parts are sent to the ground through the hoister 5.
In the second embodiment, as a preferable scheme of the first embodiment, both sides of the upper surface of the tower top support 2 are fixedly provided with a movable guide rail 11, a sliding block 9 is slidably connected in each movable guide rail 11, both ends of each movable guide rail 11 are fixedly provided with a telescopic motor 10, a telescopic end of each telescopic motor 10 is fixedly connected with one sliding block 9, and the elevator 5 is fixedly arranged above the sliding block 9. In this embodiment, 4 lifting machines 5 are provided, and the drive end of each lifting machine 5 is connected with a lifting rope 6, and the end of each lifting rope 6 is connected respectively at the four corners position of fixed disk 34 to guarantee the stability of whole hanging beam 3, when controlling lifting machine 5 to move to the cabin direction, each sliding block 9 is driven respectively to slide to the cabin direction in moving guide 11 by controlling each telescopic motor 10, thereby making lifting machine 5 above each sliding block 9 move to the cabin direction.
Third embodiment, as an optimal scheme of the first embodiment, limiting slide rails have all been seted up to the upper surface both sides of rotating turret 31, limiting slide rails include first limiting slide rail 12 and second limiting slide rail 13, first limiting slide rail 12 and second limiting slide rail 13 are located the left and right sides of fixed disk 34 respectively, slotted hole 14 has been seted up to first limiting slide rail 12 and second limiting slide rail 13 internal surface below, sliding connection has limiting slide 15 in first limiting slide rail 12 and the second limiting slide rail 13, hoist 7 fixed mounting is on limiting slide 15, wire rope 8 passes slotted hole 14 fixed connection on rings 4 of blade anchor clamps 1 both sides. When the windlass 7 releases the steel wire rope 8 far away from the blade root or tightens up the steel wire rope 8 near the blade root, the windlasss 7 on the two sides can respectively slide in the first limiting slide rail 12 or the second limiting slide rail 13 under the action of the limiting slide block 15, so that the position of the windlass 7 can be adaptively adjusted according to the rotation angle of the blade.
In a fourth embodiment, as a preferable scheme of the first embodiment, a rubber pad is fixedly installed on the inner surface of the blade clamp 1. The rubber pad plays a certain role in protecting the surface of the blade.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. The utility model provides a blade hoist and mount adjusting device for aerogenerator which characterized in that: the device comprises two blade clamps (1), a tower top support (2) and a hanging beam (3), wherein the two blade clamps (1) are respectively and fixedly arranged on two sides of a gravity center point of a fan blade, and hanging rings (4) are fixedly arranged on the surfaces of the two sides of each blade clamp (1); the tower top support (2) is fixedly arranged in a cabin of the fan, two sides of the upper surface of the tower top support (2) are movably connected with a hoisting machine (5), and the driving end of the hoisting machine (5) is connected with one end of a lifting rope (6);
the lifting beam (3) comprises a rotating frame (31), a bearing inner ring (32), a bearing outer ring (33) and a fixed disc (34), the rotating frame (31) is fixedly arranged below the bearing inner ring (32), the bearing inner ring (32) is matched with the bearing outer ring (33), the fixed disc (34) is fixedly arranged above the bearing outer ring (33), the other end of the lifting rope (6) is fixedly connected above the fixed disc (34), a gear strip (35) is arranged on the surface of the inner side of the bearing inner ring (32), a driving motor (36) is fixedly arranged at the eccentric position of the upper surface of the fixed disc (34), a driving end of the driving motor (36) penetrates through the fixed disc (34) and is fixedly provided with a gear (37), and the gear (37) is meshed with the gear strip (35); both sides of the upper surface of the rotating frame (31) are movably connected with winches (7), the driving ends of the winches (7) are respectively connected with one ends of steel wire ropes (8), and the other ends of the steel wire ropes (8) are fixedly connected to hanging rings (4) on both sides of the blade clamp (1).
2. The blade lifting adjusting device for the wind driven generator as claimed in claim 1, wherein: the equal fixed mounting in top of the tower support (2) upper surface both sides has movable guide (11), every equal sliding connection has sliding block (9), every in movable guide (11) the equal fixed mounting in both ends of movable guide (11) has flexible motor (10), every the flexible end of flexible motor (10) respectively with a sliding block (9) fixed connection, lifting machine (5) fixed mounting is in sliding block (9) top.
3. The blade lifting adjusting device for the wind driven generator as claimed in claim 1, wherein: spacing slide rails have all been seted up to rotating turret (31) upper surface both sides, spacing slide rail includes first spacing slide rail (12) and second spacing slide rail (13), first spacing slide rail (12) and second spacing slide rail (13) are located the left and right sides of fixed disk (34) respectively, strip slotted hole (14) have been seted up to first spacing slide rail (12) and second spacing slide rail (13) internal surface below, sliding connection has spacing slider (15) in first spacing slide rail (12) and second spacing slide rail (13), hoist engine (7) fixed mounting is on spacing slider (15), wire rope (8) pass strip slotted hole (14) fixed connection on rings (4) of blade anchor clamps (1) both sides.
4. The blade lifting adjusting device for the wind driven generator as claimed in claim 1, wherein: and a rubber pad is fixedly arranged on the inner surface of the blade clamp (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010967482.3A CN114180443A (en) | 2020-09-15 | 2020-09-15 | Blade hoisting adjusting device for wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010967482.3A CN114180443A (en) | 2020-09-15 | 2020-09-15 | Blade hoisting adjusting device for wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114180443A true CN114180443A (en) | 2022-03-15 |
Family
ID=80601221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010967482.3A Pending CN114180443A (en) | 2020-09-15 | 2020-09-15 | Blade hoisting adjusting device for wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114180443A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115234444A (en) * | 2022-09-26 | 2022-10-25 | 山东金科星机电股份有限公司 | Anti-collision type fan hoisting device and hoisting method |
| CN116605766A (en) * | 2023-05-29 | 2023-08-18 | 河南金利重工科技有限公司 | Impeller lifting mechanism for wind power construction and wind power construction method |
-
2020
- 2020-09-15 CN CN202010967482.3A patent/CN114180443A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115234444A (en) * | 2022-09-26 | 2022-10-25 | 山东金科星机电股份有限公司 | Anti-collision type fan hoisting device and hoisting method |
| CN116605766A (en) * | 2023-05-29 | 2023-08-18 | 河南金利重工科技有限公司 | Impeller lifting mechanism for wind power construction and wind power construction method |
| CN116605766B (en) * | 2023-05-29 | 2024-03-26 | 河南金利重工科技有限公司 | Impeller lifting mechanism for wind power construction and wind power construction method |
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