An adjustable lifting device for wind power blades

Abstract

The utility model discloses a kind of adjustable wind power generation blade hoist, including main frame, lifting hook, hanging mouth, sling and sling adjusting structure;The utility model sling installation, the both ends of sling are respectively inserted into rope sleeve, after sling sleeve on blade, open hydraulic rod, and hydraulic rod contraction drives adjusting rod to slide, adjusting rod will be from outside to inside and slide into machine box interior, simultaneously, it will pull rope sleeve and pull rod, pull rod will pull sling, so that sling is contracted and is pulled tight, guarantee that sling fastening is sleeved in blade surface, to realize the tightness adjustment to sling, improve the stability when sling sleeve on blade, when tightening sling, it can also inhibit the sliding of sling on blade surface, avoid blade gravity center deviation, since sling in rope sleeve, it can also inhibit the swing of sling.

Description

Technical Field

[0001] This utility model relates to the field of wind power blade technology, specifically to an adjustable wind power blade lifting device. Background Technology

[0002] Wind turbine blades are one of the core components of wind turbine generator sets, and their design, materials, and manufacturing processes directly affect the efficiency, reliability, and cost of the entire unit. Like a "wind catcher," they efficiently capture the kinetic energy of flowing air and convert it into mechanical energy. Lifting gear is a specialized device for the safe and efficient hoisting and handling of the blades.

[0003] The existing lifting gear has the following problems: Most existing lifting devices lift blades by attaching a sling to the blade. However, these devices do not adjust the tension of the sling after it is attached, which can cause the blade to sway in the wind after being lifted. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable wind turbine blade lifting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable wind turbine blade lifting device, comprising a main frame, a hook on the main frame, a hanging opening on the main frame, a lifting rope on the hanging opening, a lifting rope adjustment structure at the lower end of the main frame, the lifting rope adjustment structure comprising a connecting plate, a connecting plate fixed to the surface of the main frame, a housing fixed to the connecting plate, a hydraulic rod connected to the housing, an adjustment rod connected to the housing, a rope loop on the adjustment rod, and a pull rod on the rope loop.

[0006] Preferably, the pull rod is rotatably connected by a rope loop.

[0007] Preferably, the front and rear ends of the housing are fixed with connecting plates, and the front and rear connecting plates are fixed on the main frame.

[0008] Preferably, the rope loop is frame-shaped.

[0009] Preferably, the housing is provided with a fixed base, and a positioning rod is fixed on the fixed base.

[0010] Preferably, the adjusting rod is slidably connected to the positioning rod.

[0011] Preferably, a pressure pad is provided at the bottom of the housing.

[0012] Compared with the prior art, the beneficial effects of this utility model are: During installation, both ends of the suspension rope are threaded into the rope loops. After the rope is placed on the blade, the hydraulic rod is activated. The hydraulic rod retracts, causing the adjusting rod to slide. The adjusting rod slides from the outside in into the housing, simultaneously pulling the rope loop and the pull rod. The pull rod then pulls the suspension rope, causing it to retract and tighten, ensuring the rope is securely fitted onto the blade surface. This allows for adjustment of the rope's tension, improving stability when the rope is on the blade. Tightening the rope also prevents it from slipping on the blade surface, avoiding shifting the blade's center of gravity. Furthermore, the rope being in the rope loops also helps to suppress rope swaying. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a front view structural diagram of the present invention.

[0015] Figure 3 This is a front view cross-sectional schematic diagram of the suspension rope adjustment structure of this utility model.

[0016] In the diagram: Main frame-1, hook-2, hanging port-3, lifting rope-4, lifting rope adjustment structure-5, connecting plate-51, machine box-52, hydraulic rod-53, adjusting rod-54, rope loop-55, pull rod-56, fixed seat-57, positioning rod-58, pressure pad-59. Detailed Implementation

[0017] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0018] Please see Figure 1 and Figure 2 This utility model provides an adjustable wind turbine blade lifting device, including a main frame 1, a hook 2 on the main frame 1 for connecting a sling, the sling being connected to a crane, a hanging opening 3 on the main frame 1, a lifting rope 4 on the hanging opening 3, and a lifting rope adjustment structure 5 at the lower end of the main frame 1.

[0019] Specifically, the hoisting rope 4 is attached to the wind turbine blade, and then the main frame 1 is lifted by a crane, which then lifts the wind turbine blade by moving the hoisting rope 4.

[0020] Please see Figure 3This utility model provides an adjustable wind turbine blade lifting device. The lifting rope adjustment structure 5 includes a connecting plate 51. The connecting plate 51 is fixed on both the front and rear surfaces of the main frame 1. A housing 52 is fixed on the connecting plate 51, so that the housing 52 has a high stability when fixed. A hydraulic rod 53 is rotatably connected in the housing 52. An adjusting rod 54 is connected in the housing 52. The other end of the hydraulic rod 53 is rotatably connected to the adjusting rod 54. A rope sleeve 55 is provided on the adjusting rod 54. A pull rod 56 is provided on the rope sleeve 55. The pull rod 56 is rotatably connected to the rope sleeve 55. When the lifting rope 4 is tightened, the pull rod 56 will rotate, thereby reducing the heat generated by friction.

[0021] Among them, the rope loop 55 is frame-shaped and is used to position the suspension rope 4 to suppress the swinging phenomenon of the suspension rope 4.

[0022] The housing 52 has a fixed base 57 inside, and a positioning rod 58 is fixed on the fixed base 57. The adjusting rod 54 is slidably connected to the positioning rod 58 to stabilize the adjusting rod 54 and prevent the adjusting rod 54 from tilting.

[0023] The bottom of the housing 52 is equipped with a pressure pad 59 to reduce impacts and ensure the stability of the blades under the pressure of the pressure pad 59.

[0024] Specifically, during installation, the two ends of the suspension rope 4 are threaded into the rope loop 55. After the suspension rope 4 is placed on the blade, the hydraulic rod 53 is activated. The hydraulic rod 53 retracts, causing the adjusting rod 54 to slide. The adjusting rod 54 slides from the outside to the inside of the housing 52, simultaneously pulling the rope loop 55 and the pull rod 56. The pull rod 56 pulls the suspension rope 4, causing it to retract and tighten, ensuring that the suspension rope 4 is securely placed on the blade surface. This allows for adjustment of the tension of the suspension rope 4, improving its stability when placed on the blade. Tightening the suspension rope 4 also prevents it from sliding on the blade surface, avoiding a shift in the blade's center of gravity. Since the suspension rope 4 is in the rope loop 55, it also helps to suppress the swinging of the suspension rope 4.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable wind turbine blade lifting device, comprising a main frame (1), a hook (2) provided on the main frame (1), a hanging opening (3) provided on the main frame (1), and a lifting rope (4) provided on the hanging opening (3), characterized in that: It also includes a suspension rope adjustment structure (5). The main frame (1) is provided with a suspension rope adjustment structure (5) at its lower end. The suspension rope adjustment structure (5) includes a connecting plate (51). The main frame (1) is fixed with a connecting plate (51). A box (52) is fixed on the connecting plate (51). A hydraulic rod (53) is connected in the box (52). An adjustment rod (54) is connected in the box (52). A rope loop (55) is provided on the adjustment rod (54). A pull rod (56) is provided on the rope loop (55).

2. The adjustable wind turbine blade lifting device according to claim 1, characterized in that: The pull rod (56) is rotatably connected by a rope loop (55).

3. The adjustable wind turbine blade lifting device according to claim 1, characterized in that: The front and rear ends of the housing (52) are fixed with connecting plates (51), and the connecting plates (51) at both ends are fixed on the main frame (1).

4. The adjustable wind turbine blade lifting device according to claim 1, characterized in that: The rope loop (55) is frame-shaped.

5. The adjustable wind turbine blade lifting device according to claim 1, characterized in that: The housing (52) is provided with a fixed base (57) inside, and a positioning rod (58) is fixed on the fixed base (57).

6. The adjustable wind turbine blade lifting device according to claim 5, characterized in that: The adjusting rod (54) is slidably connected to the positioning rod (58).

7. The adjustable wind turbine blade lifting device according to claim 1, characterized in that: A pressure pad (59) is provided at the bottom of the housing (52).

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