CN215486381U - Blade transfer mechanism of wind driven generator - Google Patents

Blade transfer mechanism of wind driven generator Download PDF

Info

Publication number
CN215486381U
CN215486381U CN202121199494.2U CN202121199494U CN215486381U CN 215486381 U CN215486381 U CN 215486381U CN 202121199494 U CN202121199494 U CN 202121199494U CN 215486381 U CN215486381 U CN 215486381U
Authority
CN
China
Prior art keywords
limiting
shaped
plate
cylinder
arc
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.)
Active
Application number
CN202121199494.2U
Other languages
Chinese (zh)
Inventor
尹庆宇
郭平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Mingyang Smart Energy Co ltd
Original Assignee
Henan Mingyang Smart Energy Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henan Mingyang Smart Energy Co ltd filed Critical Henan Mingyang Smart Energy Co ltd
Priority to CN202121199494.2U priority Critical patent/CN215486381U/en
Application granted granted Critical
Publication of CN215486381U publication Critical patent/CN215486381U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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 relates to the technical field of wind driven generator blade preparation equipment, in particular to a wind driven generator blade transfer mechanism which comprises an I-shaped transfer support, wherein the left end of the I-shaped transfer support is provided with a hauling plate, the hauling plate is provided with hauling holes, a plurality of support plates are arranged below the I-shaped transfer support, and transfer hubs are arranged on the support plates; the I-shaped transfer support is sequentially provided with a first blade root limiting device, a second blade root limiting device and a blade neck and blade tip limiting device from left to right. The blade transferring mechanism of the wind driven generator can reduce damage of the blades in the transferring process.

Description

Blade transfer mechanism of wind driven generator
Technical Field
The utility model relates to the technical field of wind driven generator blade preparation equipment, in particular to a wind driven generator blade transfer mechanism.
Background
The aerogenerator blade is aerogenerator's core component, its length is different according to the intensity of the wattage and the wind force of fan, current aerogenerator blade transport mechanism fixes the blade on the base through the rope when transporting the blade and transports, in the transportation because the blade root of aerogenerator blade is circular, its apex is the platykurtic, and the weight of its blade root is heavier, very easily lead to the blade to take place to rock, in the process of rocking, blade surface and rope and base take place to rub, lead to the blade surface to receive the damage.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is as follows: the utility model provides a blade transfer mechanism of a wind driven generator, which can reduce the damage of blades in the transfer process.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
a wind driven generator blade transfer mechanism comprises an I-shaped transfer support, wherein a hauling plate is arranged at the left end of the I-shaped transfer support, hauling holes are formed in the hauling plate, a plurality of supporting plates are arranged below the I-shaped transfer support, and transfer hubs are mounted on the supporting plates;
the I-shaped transfer support is sequentially provided with a first blade root limiting device, a second blade root limiting device and a blade neck and blade tip limiting device from left to right.
As an improvement: the first blade root limiting device comprises a first limiting vertical plate, the first limiting vertical plate is vertically upwards fixed on the I-shaped transfer support, a first electric hydraulic cylinder is arranged on the first limiting vertical plate, a limiting disc is fixed on a piston rod of the first electric hydraulic cylinder, and a limiting insertion column is detachably arranged on the limiting disc.
As an improvement: the second leaf root limiting device comprises a second limiting vertical plate, a third limiting vertical plate and an arc-shaped bearing plate, a second electric hydraulic cylinder is arranged on the second limiting vertical plate, a first arc-shaped limiting plate is fixed on a piston rod of the second electric hydraulic cylinder, a second arc-shaped limiting plate is arranged on the first arc-shaped limiting plate, and a plurality of first elastic columns are arranged between the first arc-shaped limiting plate and the second arc-shaped limiting plate;
a third electric hydraulic cylinder is arranged on the third limiting vertical plate, a third arc limiting plate is fixed on a piston cylinder of the third electric hydraulic cylinder, a fourth arc limiting plate is arranged on the third arc limiting plate, and a plurality of second elastic cylinders are arranged between the third arc limiting plate and the fourth arc limiting plate;
the arc-shaped bearing plate is arranged between the first limiting vertical plate and the third limiting vertical plate, and a plurality of third elastic cylinders are arranged below the arc-shaped bearing plate.
As an improvement: the blade neck and blade tip limiting device comprises a first bearing cylinder, a second bearing cylinder and a third bearing cylinder.
As an improvement: be equipped with first electronic hydraulic pressure lift cylinder on the first bearing cylinder be equipped with the spacing frame of first U type on the piston rod of first electronic hydraulic pressure lift cylinder the inside symmetry of the spacing frame of first U type is equipped with first movable limiting plate, second movable limiting plate, first movable limiting plate passes through the fourth elastic column body and fixes the inside at the spacing frame of first U type, second movable limiting plate passes through the inside at the spacing frame of first U type through fifth elastic column body and fixes.
As an improvement: the hydraulic support device comprises a first support cylinder and a second support cylinder, and is characterized in that a second electric hydraulic lifting cylinder is arranged on the second support cylinder, a second U-shaped limiting frame is arranged on a piston rod of the second electric hydraulic lifting cylinder, a third movable limiting plate and a fourth movable limiting plate are symmetrically arranged inside the second U-shaped limiting frame, the third movable limiting plate is fixed inside the second U-shaped limiting frame through a sixth elastic cylinder, and the fourth movable limiting plate is fixed inside the second U-shaped limiting frame through a seventh elastic cylinder.
As an improvement: the hydraulic support device comprises a third support cylinder, a piston rod and a third U-shaped limiting frame, wherein a third electric hydraulic lifting cylinder is arranged on the third support cylinder, a fifth movable limiting plate and a sixth movable limiting plate are symmetrically arranged in the third U-shaped limiting frame, the fifth movable limiting plate is fixed in the third U-shaped limiting frame through an eighth elastic cylinder, and the sixth movable limiting plate is fixed in the third U-shaped limiting frame through a ninth elastic cylinder.
In conclusion, the utility model has the following beneficial effects:
the utility model provides a blade transfer mechanism of a wind driven generator, wherein a blade root part of a wind driven generator blade is placed on an arc-shaped bearing plate, then a second electric hydraulic cylinder and a third electric hydraulic cylinder are started, so that a second arc-shaped limiting plate and a fourth arc-shaped limiting plate are contacted with the blade root part, then a first electric hydraulic cylinder is started to insert a limiting insertion column into the blade root, at the moment, a limiting disc is contacted with the outside of the top part of the blade root, the blade root can be stably fixed on an I-shaped transfer bracket through the operation, and then a blade neck and a blade tip are respectively clamped and limited in a first U-shaped limiting frame, a second U-shaped limiting frame and a third U-shaped limiting frame, and the blade neck and the blade tip can be stably fixed on the I-shaped transfer bracket through the operation;
because a plurality of first elastic cylinders are arranged between the first arc-shaped limiting plate and the second arc-shaped limiting plate, a plurality of second elastic cylinders are arranged between the third arc-shaped limiting plate and the fourth arc-shaped limiting plate, and a plurality of third elastic cylinders are arranged below the arc-shaped bearing plate, the root of the leaf is in elastic contact with the first arc-shaped limiting plate, the second arc-shaped limiting plate and the arc-shaped bearing plate in the transferring process, so that the friction is reduced, and the damage is reduced;
the first movable limiting plate is fixed inside the first U-shaped limiting frame through a fourth elastic column, and the second movable limiting plate is fixed inside the first U-shaped limiting frame through a fifth elastic column; the third movable limiting plate is fixed in the second U-shaped limiting frame through a sixth elastic cylinder, the fourth movable limiting plate is fixed in the second U-shaped limiting frame through a seventh elastic cylinder, the fifth movable limiting plate is fixed in the third U-shaped limiting frame through an eighth elastic cylinder, the sixth movable limiting plate is fixed in the third U-shaped limiting frame through a ninth elastic cylinder, and therefore the leaf neck is in the transferring process, the leaf tip is in elastic contact with the movable limiting plate in the U-shaped limiting frame, friction is reduced, and damage is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below.
FIG. 1 is a schematic overall structure diagram of a blade transfer mechanism of a wind turbine;
fig. 2 is a schematic overall structural view of the first blade root limiting device and the second blade root limiting device;
FIG. 3 is a schematic view of the overall structure of the limiting device for the blade neck and the blade tip;
wherein: 1. an I-shaped transfer bracket; 2. a hauling board; 3. a hauling hole; 4. a support plate; 5. a transfer hub; 6. a first limit vertical plate; 7. a first electro-hydraulic cylinder; 8. a limiting disc; 9. limiting the inserting column; 10. a second limiting vertical plate; 11. a third limiting vertical plate; 12. an arc-shaped bearing plate; 13. a second electro-hydraulic cylinder; 14. a first arc-shaped limiting plate; 15. a second arc-shaped limiting plate; 16. a first elastic cylinder; 17. a third electro-hydraulic cylinder; 18. a third arc-shaped limiting plate; 19. a fourth arc-shaped limiting plate; 20. a second elastic cylinder; 21. a third elastic cylinder; 22. a first support cylinder; 23. a second support cylinder; 24. a third support cylinder; 25. a first electro-hydraulic lift cylinder; 26. a first U-shaped limiting frame; 27. a first movable limiting plate; 28. a second movable limiting plate; 29. a fourth elastic cylinder; 30. a fifth elastic cylinder; 31. a second electro-hydraulic lifting cylinder; 32. a second U-shaped limiting frame; 33. a third movable limiting plate; 34. a fourth movable limiting plate; 35. a sixth elastic cylinder; 36. a seventh elastic cylinder; 37. a third electro-hydraulic lifting cylinder; 38. a third U-shaped limiting frame; 39. a fifth movable limiting plate; 40. a sixth movable limiting plate; 41. an eighth elastic cylinder; 42. a ninth elastic cylinder.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 3, a blade transfer mechanism of a wind turbine generator comprises an i-shaped transfer support, wherein a hauling plate 2 is arranged at the left end of the i-shaped transfer support, hauling holes 3 are formed in the hauling plate 2, a plurality of support plates 4 are arranged below the i-shaped transfer support, and a transfer hub 5 is arranged on each support plate 4;
a first blade root limiting device, a second blade root limiting device and a blade neck and blade tip limiting device are sequentially arranged on the I-shaped transfer support from left to right.
First blade root stop device is including first spacing riser 6, and first spacing riser 6 is upwards fixed perpendicularly and is transported on the support on "worker" style of calligraphy, is equipped with first electronic hydraulic cylinder 7 on first spacing riser 6, is fixed with a spacing disc 8 on the piston rod of first electronic hydraulic cylinder 7, can dismantle on spacing disc 8 and be equipped with a spacing grafting post 9.
The second leaf root limiting device comprises a second limiting vertical plate 10, a third limiting vertical plate 11 and an arc-shaped bearing plate 12, wherein a second electric hydraulic cylinder 13 is arranged on the second limiting vertical plate 10, a first arc-shaped limiting plate 14 is fixed on a piston rod of the second electric hydraulic cylinder 13, a second arc-shaped limiting plate 15 is arranged on the first arc-shaped limiting plate 14, and a plurality of first elastic cylinders 16 are arranged between the first arc-shaped limiting plate 14 and the second arc-shaped limiting plate 15;
a third electro-hydraulic cylinder 17 is arranged on the third limiting vertical plate 11, a third arc limiting plate 18 is fixed on a piston cylinder of the third electro-hydraulic cylinder 17, a fourth arc limiting plate 19 is arranged on the third arc limiting plate 18, and a plurality of second elastic columns 20 are arranged between the third arc limiting plate 18 and the fourth arc limiting plate 19;
the arc-shaped bearing plate 12 is arranged between the first limit vertical plate 6 and the third limit vertical plate 11, and a plurality of third elastic cylinders 21 are arranged below the arc-shaped bearing plate 12.
The limiting device for the blade neck and the blade tip comprises a first supporting cylinder 22, a second supporting cylinder 23 and a third supporting cylinder 24. The first bearing cylinder 22 is provided with a first electro-hydraulic lifting cylinder 25, a piston rod of the first electro-hydraulic lifting cylinder 25 is provided with a first U-shaped limiting frame 26, a first movable limiting plate 27 and a second movable limiting plate 28 are symmetrically arranged inside the first U-shaped limiting frame 26, the first movable limiting plate 27 is fixed inside the first U-shaped limiting frame 26 through a fourth elastic cylinder 29, and the second movable limiting plate 28 is fixed inside the first U-shaped limiting frame 26 through a fifth elastic cylinder 30. The second support cylinder 23 is provided with a second electric hydraulic lifting cylinder 31, a piston rod of the second electric hydraulic lifting cylinder 31 is provided with a second U-shaped limiting frame 32, a third movable limiting plate 33 and a fourth movable limiting plate 34 are symmetrically arranged inside the second U-shaped limiting frame 32, the third movable limiting plate 33 is fixed inside the second U-shaped limiting frame 32 through a sixth elastic cylinder 35, and the fourth movable limiting plate 34 is fixed inside the second U-shaped limiting frame 32 through a seventh elastic cylinder 36. A third electro-hydraulic lifting cylinder 37 is arranged on the third bearing cylinder 24, a third U-shaped limiting frame 38 is arranged on a piston rod of the third electro-hydraulic lifting cylinder 37, a fifth movable limiting plate 39 and a sixth movable limiting plate 40 are symmetrically arranged inside the third U-shaped limiting frame 38, the fifth movable limiting plate 39 is fixed inside the third U-shaped limiting frame 38 through an eighth elastic cylinder 41, and the sixth movable limiting plate 40 is fixed inside the third U-shaped limiting frame 38 through a ninth elastic cylinder 42.
The working principle is as follows: the blade root of the wind driven generator blade is placed on the arc-shaped bearing plate 12, then the second electric hydraulic cylinder 13 and the third electric hydraulic cylinder 17 are started, the second arc-shaped limiting plate 15 and the fourth arc-shaped limiting plate 19 are in contact with the blade root, then the first electric hydraulic cylinder 7 is started to insert the limiting insertion column 9 into the blade root, at the moment, the limiting disc 8 is in contact with the outside of the top of the blade root, the blade root can be stably fixed on the I-shaped transfer support through the operation, the blade neck and the blade tip are respectively clamped and limited in the first U-shaped limiting frame 26, the second U-shaped limiting frame 32 and the third U-shaped limiting frame 38, and the blade neck and the blade tip can be stably fixed on the I-shaped transfer support through the operation;
because a plurality of first elastic cylinders 16 are arranged between the first arc-shaped limiting plate 14 and the second arc-shaped limiting plate 15, a plurality of second elastic cylinders 20 are arranged between the third arc-shaped limiting plate 18 and the fourth arc-shaped limiting plate 19, and a plurality of third elastic cylinders 21 are arranged below the arc-shaped bearing plate 12, the root of the leaf is in elastic contact with the first arc-shaped limiting plate 14, the second arc-shaped limiting plate 15 and the arc-shaped bearing plate 12 in the transferring process, so that the friction is reduced, and the damage is reduced;
the first movable limiting plate 27 is fixed inside the first U-shaped limiting frame 26 through a fourth elastic column 29, and the second movable limiting plate 28 is fixed inside the first U-shaped limiting frame 26 through a fifth elastic column 30; the third movable limiting plate 33 is fixed inside the second U-shaped limiting frame 32 through a sixth elastic column 35, the fourth movable limiting plate 34 is fixed inside the second U-shaped limiting frame 32 through a seventh elastic column 36, the fifth movable limiting plate 39 is fixed inside the third U-shaped limiting frame 38 through an eighth elastic column 41, and the sixth movable limiting plate 40 is fixed inside the third U-shaped limiting frame 38 through a ninth elastic column 42, so that the blade neck and the movable limiting plates in the U-shaped limiting frame are in elastic contact in the transfer process, friction is reduced, and damage is reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will appreciate that; modifications to the specific embodiments of the utility model or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the utility model as defined by the appended claims.

Claims (7)

1. A wind driven generator blade transfer mechanism is characterized by comprising an I-shaped transfer support, wherein a hauling plate is arranged at the left end of the I-shaped transfer support, hauling holes are formed in the hauling plate, a plurality of supporting plates are arranged below the I-shaped transfer support, and transfer hubs are mounted on the supporting plates;
the I-shaped transfer support is sequentially provided with a first blade root limiting device, a second blade root limiting device and a blade neck and blade tip limiting device from left to right.
2. The wind driven generator blade transfer mechanism according to claim 1, wherein the first blade root limiting device comprises a first limiting vertical plate, the first limiting vertical plate is vertically and upwardly fixed on the I-shaped transfer support, a first electro-hydraulic cylinder is arranged on the first limiting vertical plate, a limiting disc is fixed on a piston rod of the first electro-hydraulic cylinder, and a limiting insertion column is detachably arranged on the limiting disc.
3. The wind driven generator blade transfer mechanism according to claim 1, wherein the second blade root limiting device comprises a second limiting vertical plate, a third limiting vertical plate and an arc-shaped bearing plate, a second electro-hydraulic cylinder is arranged on the second limiting vertical plate, a first arc-shaped limiting plate is fixed on a piston rod of the second electro-hydraulic cylinder, a second arc-shaped limiting plate is arranged on the first arc-shaped limiting plate, and a plurality of first elastic cylinders are arranged between the first arc-shaped limiting plate and the second arc-shaped limiting plate;
a third electric hydraulic cylinder is arranged on the third limiting vertical plate, a third arc limiting plate is fixed on a piston cylinder of the third electric hydraulic cylinder, a fourth arc limiting plate is arranged on the third arc limiting plate, and a plurality of second elastic cylinders are arranged between the third arc limiting plate and the fourth arc limiting plate;
the arc-shaped bearing plate is arranged between the first limiting vertical plate and the third limiting vertical plate, and a plurality of third elastic cylinders are arranged below the arc-shaped bearing plate.
4. The wind turbine blade transfer mechanism of claim 1, wherein the journal and tip stop device comprises a first support cylinder, a second support cylinder, and a third support cylinder.
5. The wind turbine blade transfer mechanism according to claim 4, wherein the first bearing cylinder is provided with a first electrohydraulic lifting cylinder, a piston rod of the first electrohydraulic lifting cylinder is provided with a first U-shaped limiting frame, a first movable limiting plate and a second movable limiting plate are symmetrically arranged inside the first U-shaped limiting frame, the first movable limiting plate is fixed inside the first U-shaped limiting frame through a fourth elastic cylinder, and the second movable limiting plate is fixed inside the first U-shaped limiting frame through a fifth elastic cylinder.
6. The wind turbine blade transfer mechanism according to claim 4, wherein a second electrohydraulic lifting cylinder is disposed on the second support cylinder, a second U-shaped limiting frame is disposed on a piston rod of the second electrohydraulic lifting cylinder, a third movable limiting plate and a fourth movable limiting plate are symmetrically disposed inside the second U-shaped limiting frame, the third movable limiting plate is fixed inside the second U-shaped limiting frame through a sixth elastic cylinder, and the fourth movable limiting plate is fixed inside the second U-shaped limiting frame through a seventh elastic cylinder.
7. The wind turbine blade transfer mechanism according to claim 4, wherein a third electrohydraulic lifting cylinder is disposed on the third support cylinder, a third U-shaped limiting frame is disposed on a piston rod of the third electrohydraulic lifting cylinder, a fifth movable limiting plate and a sixth movable limiting plate are symmetrically disposed inside the third U-shaped limiting frame, the fifth movable limiting plate is fixed inside the third U-shaped limiting frame through an eighth elastic cylinder, and the sixth movable limiting plate is fixed inside the third U-shaped limiting frame through a ninth elastic cylinder.
CN202121199494.2U 2021-05-28 2021-05-28 Blade transfer mechanism of wind driven generator Active CN215486381U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121199494.2U CN215486381U (en) 2021-05-28 2021-05-28 Blade transfer mechanism of wind driven generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121199494.2U CN215486381U (en) 2021-05-28 2021-05-28 Blade transfer mechanism of wind driven generator

Publications (1)

Publication Number Publication Date
CN215486381U true CN215486381U (en) 2022-01-11

Family

ID=79781566

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121199494.2U Active CN215486381U (en) 2021-05-28 2021-05-28 Blade transfer mechanism of wind driven generator

Country Status (1)

Country Link
CN (1) CN215486381U (en)

Similar Documents

Publication Publication Date Title
CN215486381U (en) Blade transfer mechanism of wind driven generator
CN202616676U (en) Mobile cable reel supporting frame
CN211078321U (en) Elevating gear is used in electromechanical installation
CN208961895U (en) A kind of yaw liner replacement tooling
CN214456176U (en) Battery lifting appliance
CN201635678U (en) Drilling rod lifting and hanging device of shaft drilling machine
CN201770363U (en) Seismic cable conductor winder
CN202508753U (en) Turnable stranding machine wire coil feeding and lifting appliance
CN201407128Y (en) Large-scale wind energy collection device
CN204615594U (en) A kind of rotor assembling device
CN220098426U (en) Hydraulic lifting mechanism for wind power tower drum installation
CN208485571U (en) A kind of lifting device for installation photovoltaic component
CN220564099U (en) Single-blade lifting appliance with stable lifting
CN201647795U (en) Moving station hanging-hook of wind power-generating tower tube
CN213923966U (en) Chain buffer device of elevator
CN213541950U (en) Supporting frame
CN205241087U (en) Barrel is hung in order of boats and ships gram
CN205986538U (en) Motor stator fixed establishment of convenient hoist and mount
CN212355997U (en) Cable winding machine
CN204747584U (en) Ancillary support device
CN210029938U (en) Semi-electric high-lift hydraulic carrier
CN212269333U (en) Reverse chain return pushing jacking device
CN219117035U (en) Cargo lifting tower capable of walking
CN218058092U (en) Hoisting equipment for wind power blade
CN220283266U (en) Lifting appliance for crane maintenance

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant