An adjustable blade hoist assist structure

Abstract

The utility model discloses an adjustable blade hoisting auxiliary structure, including hoisting frame, both ends of hoisting frame top are all fixedly connected with crossbeam, and the bottom fixedly connected with hoisting rope band of crossbeam, the top fixedly connected with a plurality of lifting lugs of hoisting frame, and the cable is bolted on the lifting lug, and the center position fixedly connected with electronic level gauge of hoisting frame top, and the top fixedly connected with two first mounting plates of hoisting frame, and the top fixedly connected with hydraulic rod of first mounting plate, and the bottom end rotationally connected with the pressing plate of hydraulic rod, both sides of hoisting frame top are all fixedly connected with support rod, and the other end of support rod is fixedly connected with one side of crossbeam. The utility model discloses the setting of the stretching of a hydraulic rod and the contraction of another hydraulic rod can adjust the balance of hoisting frame, to guarantee the hoisting center of blade and the horizontal center of hoisting frame coincide, thereby prevent the deviation after hoisting up.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology, and in particular to an adjustable blade hoisting auxiliary structure. Background Technology

[0002] In the hoisting of wind turbine blades, most scenarios still rely on two hoisting ropes to directly support the blades and then connect them to the crane hook to complete the hoisting. However, nowadays, by setting elastic bands on the support frame, the wind turbine blades are placed on the elastic bands and their own weight is used to tighten them. Then, the support frame is directly lifted by the hoisting equipment using hoisting ropes for transport.

[0003] However, during the hoisting process, due to the uneven volume of the wind turbine blades, the structure, which is heavier at one end and lighter at the other, will cause the lighter end to tilt during hoisting, resulting in the support swaying, the hoisting shifting, and the blades moving away from the intended hoisting position.

[0004] Therefore, in order to better achieve balance during blade hoisting, and to promote technological progress in the industry and enhance core technological competitiveness, this application proposes a new implementation scheme for adjustable blade hoisting that differs from existing technologies. Utility Model Content

[0005] The purpose of this invention is to solve the problem of not being able to accurately determine the balance during lifting, and to propose an adjustable blade lifting auxiliary structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable blade hoisting auxiliary structure includes a hoisting frame. Crossbeams are fixedly connected to both ends of the top of the hoisting frame, and hoisting ropes are fixedly connected to the bottom of the crossbeams. Multiple lifting rings are fixedly connected to the top of the hoisting frame, and cables are attached to the lifting rings. An electronic level is fixedly connected to the center position of the top of the hoisting frame. Two first mounting plates are fixedly connected to the top of the hoisting frame, and hydraulic rods are fixedly connected to the top of the first mounting plates. A pressure plate is rotatably connected to the bottom end of the hydraulic rods.

[0008] Furthermore, support rods are fixedly connected to both sides of the top of the hoisting frame, and the other end of the support rods is fixedly connected to one side of the crossbeam.

[0009] Furthermore, a control panel is fixedly connected to one side of the hoisting frame, and the control panel is connected to the hydraulic rod via a wire.

[0010] Furthermore, a soft silicone pad is adhered to the bottom of the pressure plate.

[0011] Furthermore, a second mounting plate is fixedly connected to the top of the hoisting frame, and a placement box is provided on the top of the second mounting plate. Insertion holes are provided on both sides of the placement box, and a sealing cover is connected to the top of the placement box via a hinge.

[0012] Furthermore, two fixing blocks are fixedly connected to the bottom of the outer walls on both sides of the placement box, and the fixing blocks are fixed to the second mounting plate by bolts.

[0013] Furthermore, the placement box contains a storage battery, which is connected to the hydraulic rod via a wire.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The balance of the lifting frame can be adjusted by stretching one hydraulic rod and retracting another hydraulic rod to ensure that the lifting center of the blade coincides with the horizontal center of the lifting frame, thereby preventing deviation after lifting.

[0016] 2. An electronic level is used to ensure that the lifting frame is level during lifting, thus guaranteeing the safety and accuracy of the lifting operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an adjustable blade hoisting auxiliary structure proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the mounting frame structure of an adjustable blade hoisting auxiliary structure proposed in this utility model.

[0019] Figure 3 A three-dimensional structural diagram of the hydraulic rod of an adjustable blade hoisting auxiliary structure proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the protective box structure of an adjustable blade hoisting auxiliary structure proposed in this utility model.

[0021] In the diagram: 1. Lifting frame; 2. Crossbeam; 3. Lifting ropes; 4. Support rod; 5. Lifting ring; 6. Cable; 7. Electronic level; 8. Control panel; 9. First mounting plate; 10. Hydraulic rod; 11. Pressure plate; 12. Soft silicone pad; 13. Second mounting plate; 14. Placement box; 15. Fixing block; 16. Plug-in hole; 17. Sealing cover; 18. Battery. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 An adjustable blade hoisting auxiliary structure includes a hoisting frame 1, with crossbeams 2 bolted to both ends of the top of the hoisting frame 1. The crossbeams 2 are fixed to both ends of the top of the hoisting frame 1 by multiple anti-loosening bolts, which increases the lateral stability of the structure.

[0024] The bottom of the crossbeam 2 is fixed with a lifting rope 3 by bolts. The lifting rope 3 is a flat lifting rope with a width of 75mm. The lifting rope 3 is made of ultra-high molecular weight polyethylene fiber, which improves the anti-breakage performance of the lifting rope 3. The bottom of the lifting rope 3 is provided with anti-slip texture. The lifting rope 3 is used to connect the blade and the lifting equipment to ensure the stable lifting of the blade.

[0025] Lifting rings 5 ​​are welded at the four corners of the top of the lifting frame 1. Each lifting ring 5 is attached with a cable 6 of the same length. The cable 6 is a steel wire rope structure and has no elasticity. The evenly distributed and equally long cable 6 helps to improve the balance during lifting.

[0026] An electronic level 7 is bolted to the center of the top of the hoisting frame 1. The model of the electronic level 7 can be Leica LRA700. The electronic level 7 is used to observe and ensure that the hoisting frame 1 is in a horizontal state during hoisting, thus ensuring the safety and accuracy of the hoisting operation.

[0027] The lifting frame 1, crossbeam 2, and lifting ring 5 are all made of low-alloy high-strength structural steel, which improves the load-bearing capacity of the blade lifting auxiliary structure.

[0028] The top of the lifting frame 1 is fixed with two first mounting plates 9 by bolts. The top of the first mounting plates 9 is fixed with hydraulic rods 10, the model of which can be SMC VQZ210. The hydraulic rods 10 on the two first mounting plates 9 can maintain the balance of the blade during the lifting process.

[0029] The bottom end of the hydraulic rod 10 is rotatably connected to a pressure plate 11. A soft silicone pad 12 is bonded to the bottom of the pressure plate 11. Both the bottom of the pressure plate 11 and the soft silicone pad 12 are provided with rough bevels. The soft material is easy to fit the blade surface, and the rough bevels can prevent the pressure plate 11 from sliding on the blade.

[0030] Support rods 4 are welded to both sides of the top of the hoisting frame 1. The other end of the support rod 4 is fixedly connected to one side of the crossbeam 2, thereby strengthening the connection between the hoisting frame 1 and the crossbeam 2 and preventing deformation.

[0031] A control panel 8 is bolted to one side of the hoisting frame 1. The control panel 8 has a built-in PLC controller, which can be Siemens S7-1200. The control panel 8 is connected to the hydraulic rod 10 by a wire. The control panel 8 is used to control the operation of the hydraulic rod 10, ensuring the convenience and accuracy of operation.

[0032] The electronic level 7 transmits the tilt signal to the PLC controller of the control panel 8 via an RS485 interface. When the tilt angle is detected to be ≥0.5°, the hydraulic adjustment system is automatically triggered. The control panel 8 automatically adjusts the hydraulic rod 10 according to the signal without manual intervention.

[0033] The top of the hoisting frame 1 is fixed with a second mounting plate 13 by bolts. The top of the second mounting plate 13 is provided with a placement box 14. Both sides of the placement box 14 are provided with insertion holes 16. The top of the placement box 14 is connected with a sealing cover 17 by a hinge. Two fixing blocks 15 are welded to the bottom of the outer walls on both sides of the placement box 14. The fixing blocks 15 are fixed to the second mounting plate 13 by bolts.

[0034] The placement box 14 is equipped with a storage battery 18, which is connected to the hydraulic rod 10 via a wire. The storage battery 18 in the placement box 14 provides power to the hydraulic rod 10, enabling the hoisting process to be carried out automatically and reducing the need for manual operation.

[0035] The working principle of this embodiment is as follows: When in use, firstly, hang one end of the cable 6 on the hook of the hoisting machine, and first slightly lift the hoisting frame 1 so that the two hoisting ropes 3 are laid flat in contact with the ground. The staff observes the levelness of the hoisting frame 1 through the electronic level 7. After balancing, the blade is placed between the two hoisting ropes 3 so that it is placed in the predetermined position and its center of gravity is between the two hoisting ropes 3.

[0036] Then, the hydraulic rods 10 are operated through the control panel 8 to extend the two hydraulic rods 10. The soft silicone pad 12 is positioned above the blade and can also contact the blade surface first. At this time, the pressure plate 11 is used to limit it to prevent it from suddenly tilting up during lifting.

[0037] During lifting, the blade is subjected to gravity, which presses down on the two lifting ropes 3, causing them to deform and tighten the blade itself. At this time, the lighter end of the blade may tilt. If it tilts, the electronic level 7 detects the tilt and sends the information to the control panel 8. After analysis, the control panel 8 controls the hydraulic rod 10 corresponding to the lighter end to stretch and compress the blade, thereby pressing the tilted end of the blade downward until the electronic level 7 is balanced. Then, the control panel 8 controls the state of the other hydraulic rod 10 so that its pressure plate 11 contacts the blade. The movement stops as the value of the electronic level 7 changes, and the balance adjustment is finally completed.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable blade hoisting auxiliary structure, comprising a hoisting frame (1), characterized in that, Both ends of the top of the hoisting frame (1) are fixedly connected to a crossbeam (2), and the bottom of the crossbeam (2) is fixedly connected to a hoisting rope (3). The top of the hoisting frame (1) is fixedly connected to a plurality of lifting rings (5), and a cable (6) is attached to the lifting rings (5). An electronic level (7) is fixedly connected to the center of the top of the hoisting frame (1). The top of the hoisting frame (1) is fixedly connected to two first mounting plates (9), and the top of the first mounting plates (9) is fixedly connected to a hydraulic rod (10). The bottom end of the hydraulic rod (10) is rotatably connected to a pressure plate (11).

2. The adjustable blade hoisting auxiliary structure according to claim 1, characterized in that, The top of the hoisting frame (1) is fixedly connected to two sides of a support rod (4), and the other end of the support rod (4) is fixedly connected to one side of the crossbeam (2).

3. The adjustable blade hoisting auxiliary structure according to claim 1, characterized in that, A control panel (8) is fixedly connected to one side of the hoisting frame (1), and the control panel (8) is connected to the hydraulic rod (10) by a wire.

4. The adjustable blade hoisting auxiliary structure according to claim 1, characterized in that, A soft silicone pad (12) is adhered to the bottom of the pressure plate (11).

5. The adjustable blade hoisting auxiliary structure according to claim 1, characterized in that, The top of the hoisting frame (1) is fixedly connected to a second mounting plate (13), and the top of the second mounting plate (13) is provided with a placement box (14). Both sides of the placement box (14) are provided with insertion holes (16), and the top of the placement box (14) is connected to a sealing cover (17) by a hinge.

6. The adjustable blade hoisting auxiliary structure according to claim 5, characterized in that, Two fixing blocks (15) are fixedly connected to the bottom of the outer walls on both sides of the placement box (14), and the fixing blocks (15) are fixed to the second mounting plate (13) by bolts.

7. The adjustable blade hoisting auxiliary structure according to claim 6, characterized in that, The placement box (14) is equipped with a storage battery (18), and the storage battery (18) is connected to the hydraulic rod (10) by a wire.

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