Convenient-to-adjust lifting appliance for wind power generation blade

Abstract

The utility model discloses a wind power generation blade lifting appliance convenient to adjust, which belongs to the technical field of lifting appliances, and comprises a support frame, the inner wall of the support frame is fixedly connected with a bidirectional hydraulic telescopic rod, the two telescopic ends of the bidirectional hydraulic telescopic rod are fixedly connected with moving blocks, two first wrapping frames are arranged below the support frame, and two second wrapping frames are arranged below the two first wrapping frames. The inner wall of each first wrapping frame is fixedly connected with an electric telescopic rod. According to the convenient-to-adjust lifting appliance for the wind power generation blade, through mutual cooperation of a supporting frame, a bidirectional hydraulic telescopic rod, moving blocks, a first wrapping frame, an electric telescopic rod, a second wrapping frame, a damper, a clamping plate, a back-jacking spring and an anti-skid pad, the two moving blocks can slide in the supporting frame in a manner that the two moving blocks get close to each other or get away from each other through stretching out and drawing back of the bidirectional hydraulic telescopic rod; and the electric telescopic rod is electrified to stretch out and draw back, so that the relative positions of the first wrapping frame and the second wrapping frame can be controlled.

Description

Technical Field

[0001] The present application belongs to the technical field of hangers, and in particular, relates to a hanger for wind turbine blades that is easy to adjust. Background Art

[0002] A sling refers to a device used to lift heavy objects in lifting machinery. It is an important component of lifting machinery. The selection of a sling should be based on factors such as the weight, shape and material of the object being lifted to ensure the safety and efficiency of the lifting operation. For large parts such as wind turbine blades, a safer sling is required in conjunction with a crane to achieve its lifting.

[0003] The utility model with the existing authorization announcement number CN219136141U discloses an adjustable wind turbine blade hanger, which pushes the adjustment mechanisms on both sides to extend outward by extending the hydraulic cylinder, so that the entire hanger becomes longer to adapt to blades of different lengths and sizes. In addition, the clamping mechanism is moved on the adjustment mechanism to make a small range of movement and adjustment of the clamped wind turbine blades, so that the blades can be accurately positioned to the area where they are to be placed during lifting.

[0004] Although the above technical solution can adapt to blades of different lengths and sizes, there is no safety support structure at the bottom after the blades are clamped. The lack of a full-range safety support structure makes it easy for the blades to fall from under the clamping structure due to loose clamping, resulting in danger and loss.

[0005] Therefore, we propose an easy-to-adjust wind turbine blade hanger to solve the above problems. Utility Model Content

[0006] The purpose of the present application is to solve the problem in the prior art that blades are easily dropped from under the clamping structure due to loose clamping, resulting in danger and loss, and to propose an easily adjustable hanger for wind turbine blades.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A wind turbine blade hanger that is easy to adjust, comprising a support frame, an inner wall of the support frame is fixedly connected to a bidirectional hydraulic telescopic rod, two telescopic ends of the bidirectional hydraulic telescopic rod are fixedly connected to a moving block, two first parcel racks are arranged below the support frame, the inner wall of each of the first parcel racks is fixedly connected to an electric telescopic rod, a second parcel rack is arranged on the outer side of each of the first parcel racks, the inner walls of the two second parcel racks and the inner walls of the two first parcel racks are fixedly connected to a damper, the telescopic end of each damper is fixedly connected to a clamping plate, the outer surface of each damper is sleeved with a return spring, and a side of each clamping plate away from the damper is fixedly connected to an anti-slip pad.

[0009] Preferably, the upper surface of each of the first parcel racks is fixedly connected to the bottom surface of the moving block, and the back surface of each of the second parcel racks is fixedly connected to the telescopic end of the electric telescopic rod, wherein the two ends of the two return springs are respectively in contact with the inner wall of the first parcel rack and the outer surface of the splint, and the other two ends of the return springs are respectively in contact with the inner wall of the second parcel rack and the outer surface of the splint, and the upper surface of the support frame is fixedly connected with a triangular hanger plate, and a shackle is provided inside the triangular hanger plate, and the outer surface of the shackle is in contact with the inner wall of the triangular hanger plate.

[0010] Preferably, the upper surface of each of the moving blocks is fixedly connected to a limiting plate, and the bottom surface of each of the limiting plates is in contact with the upper surface of the supporting frame.

[0011] Preferably, the front side and the back side of each of the moving blocks are fixedly connected to a limiting slider, and the outer surface of each of the limiting sliders is slidably connected to the inside of the support frame.

[0012] Preferably, two limiting guide rods are fixedly connected to the front of each of the first parcel shelves, and the outer surface of each of the limiting guide rods is slidably connected to the inside of the second parcel shelf.

[0013] Preferably, two positioning pins are fixedly connected to the front side of each first parcel shelf, and two positioning grooves are provided on the front side of each second parcel shelf.

[0014] In summary, the technical effects and advantages of this application are:

[0015] Through the mutual cooperation of the support frame, the two-way hydraulic telescopic rod, the moving block, the first parcel rack, the electric telescopic rod, the second parcel rack, the damper, the clamping plate, the return spring and the anti-skid pad, the extension and retraction of the two-way hydraulic telescopic rod can make the two moving blocks slide closer to or away from each other inside the support frame, thereby controlling the range in which the first parcel rack and the second parcel rack can clamp the blades, and the extension and retraction of the electric telescopic rod can control the relative positions of the first parcel rack and the second parcel rack, and then when the blades are placed in the first parcel rack and the second parcel rack for clamping, the damper, the clamping plate and the return spring can tighten and clamp the outer surface of the blade and have a certain shockproof effect. Finally, the closing of the first parcel rack and the second parcel rack can also prevent the clamped blades from falling from under the first parcel rack and the second parcel rack after accidentally detaching from the clamping plate and the anti-skid pad, thereby playing the role of fully wrapping the supporting blades and preventing them from falling, and avoiding the problem of danger and loss caused by the blades falling from under the clamping structure due to loose clamping due to the lack of a full-range insurance supporting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a three-dimensional overall structural diagram of the utility model's conveniently adjustable wind turbine blade hanger;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the support frame of the utility model when viewed from above;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the first parcel rack of the utility model;

[0019] Figure 4 It is a schematic diagram of a three-dimensional structure of a first parcel shelf of the utility model in a side view;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the triangular hanging plate of the utility model.

[0021] In the figure: 1. support frame; 2. two-way hydraulic telescopic rod; 3. moving block; 4. first parcel rack; 5. electric telescopic rod; 6. second parcel rack; 7. damper; 8. clamping plate; 9. return spring; 10. anti-slip pad; 11. triangular hanging plate; 12. shackle; 13. limit plate; 14. limit slider; 15. limit guide rod; 16. positioning pin; 17. positioning groove. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-5 A wind turbine blade sling that is easy to adjust includes a support frame 1, a bidirectional hydraulic telescopic rod 2 is fixedly connected to the inner wall of the support frame 1, and the two telescopic ends of the bidirectional hydraulic telescopic rod 2 are fixedly connected to a moving block 3, and the upper surface of the support frame 1 is fixedly connected to a triangular hanging plate 11, and a shackle 12 is arranged inside the triangular hanging plate 11, and the outer surface of the shackle 12 contacts the inner wall of the triangular hanging plate 11. By providing the triangular hanging plate 11, which is itself triangular in shape, the stability of the support frame 1 relative to the upper suspension structure can be increased. By providing the shackle 12, which is composed of a semi-ring buckle and a fastening bolt, after the semi-ring buckle passes through the triangular hanging plate 11, the fastening connection between the fastening bolt and the semi-ring buckle can stably penetrate the suspension steel cable into the shackle 12, thereby increasing the stability of the entire sling after being lifted.

[0024] Two first parcel racks 4 are arranged below the support frame 1, and the inner wall of each first parcel rack 4 is fixedly connected with an electric telescopic rod 5, and the upper surface of each first parcel rack 4 is fixedly connected with the bottom surface of the moving block 3, and the upper surface of each moving block 3 is fixedly connected with a limiting plate 13, and the bottom surface of each limiting plate 13 is in contact with the upper surface of the support frame 1. By providing the limiting plate 13, it can move with the movement of the moving block 3 and block above the support frame 1, thereby increasing the lifting strength of the moving block 3.

[0025] A second parcel rack 6 is provided on the outer side of each first parcel rack 4, and the inner walls of the two second parcel racks 6 and the inner walls of the two first parcel racks 4 are fixedly connected with dampers 7, and the back side of each second parcel rack 6 is fixedly connected to the telescopic end of the electric telescopic rod 5, and the front side of each moving block 3 and the back side of the moving block 3 are fixedly connected to a limiting slider 14, and the outer surface of each limiting slider 14 is slidably connected to the inside of the support frame 1. By providing the limiting slider 14, it can slide back and forth in a directional manner inside the support frame 1, thereby increasing the sliding stability of the moving block 3 in the support frame 1.

[0026] The telescopic end of each damper 7 is fixedly connected to a clamping plate 8, and the outer surface of each damper 7 is sleeved with a return spring 9, wherein the two ends of the two return springs 9 are respectively in contact with the inner wall of the first parcel shelf 4 and the outer surface of the clamping plate 8, and the other two ends of the return springs 9 are respectively in contact with the inner wall of the second parcel shelf 6 and the outer surface of the clamping plate 8. The front of each first parcel shelf 4 is fixedly connected to two limiting guide rods 15, and the outer surface of each limiting guide rod 15 is slidably connected to the inside of the second parcel shelf 6. By providing the limiting guide rods 15, the second parcel shelf 6 can slide along its outer surface, which increases the directionality and stability of the second parcel shelf 6 when moving, and also increases the stability of the second parcel shelf 6 relative to the first parcel shelf 4.

[0027] A side of each clamping plate 8 away from the damper 7 is fixedly connected to a non-slip pad 10, a front side of each first parcel shelf 4 is fixedly connected to two positioning pins 16, and a front side of each second parcel shelf 6 is provided with two positioning grooves 17. By providing the positioning pins 16 and the positioning grooves 17, the first parcel shelf 4 and the second parcel shelf 6 can be assembled with each other after they are close to each other, thereby increasing the accuracy of the assembly of the first parcel shelf 4 and the second parcel shelf 6 and the relative stability after the assembly.

[0028] The working principle of the utility model is: when in use, first separate the fastening bolts and the half-ring buckle on the shackle 12, then put the steel cable used for the crane into the half-ring buckle of the shackle 12, and then install the fastening bolts of the shackle 12 in the half-ring buckle again to complete the installation of the crane steel cable, and then according to the length of the power generation blade, the two-way hydraulic telescopic rod 2 is energized to extend and retract within a certain range until the two groups of first wrapping frames 4 and the second wrapping frames 6 can wrap the two half ends of the blade as much as possible, and then the crane controls the steel cable to lower the entire sling until the blade is between the two groups of first wrapping frames 4 and the electric telescopic rod 5, and the two electric telescopic rods 5 are energized to slowly retract until each anti-slip pad 10 is close to the outer surface of the blade, and the splint 8 is also slowly moved The telescopic end of the damper 7 and the return spring 9 are compressed until the locating pin 16 on the first parcel rack 4 is completely inserted into the locating groove 17 on the second parcel rack 6. Then the crane can lift and transport the entire sling and blades through the steel cable. During this period, the shaking of the blades will be effectively eliminated by the cooperation of the damper 7 and the return spring 9. Due to the closed support of the first parcel rack 4 and the second parcel rack 6 and the clamping of the clamping plate 8, there is no risk of the blades falling from under the first parcel rack 4 and the second parcel rack 6. The design of the entire sling for wind power blades that is easy to adjust effectively solves the problem of danger and loss caused by the blades falling from under the clamping structure due to loose clamping due to the lack of an all-round safety support structure.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wind turbine blade hanger that is easy to adjust, comprising a support frame (1), characterized in that: A bidirectional hydraulic telescopic rod (2) is fixedly connected to the inner wall of the support frame (1), and both telescopic ends of the bidirectional hydraulic telescopic rod (2) are fixedly connected to a moving block (3). Two first parcel racks (4) are arranged below the support frame (1), and the inner wall of each of the first parcel racks (4) is fixedly connected to an electric telescopic rod (5). A second parcel rack (6) is arranged on the outer side of each of the first parcel racks (4). The inner walls of the two second parcel racks (6) and the inner walls of the two first parcel racks (4) are fixedly connected to a damper (7). The telescopic end of each damper (7) is fixedly connected to a clamping plate (8), and the outer surface of each damper (7) is sleeved with a return spring (9). A side of each clamping plate (8) away from the damper (7) is fixedly connected to an anti-slip pad (10).

2. The easily adjustable wind turbine blade hanger according to claim 1, characterized in that: The upper surface of each first parcel rack (4) is fixedly connected to the bottom surface of the moving block (3), and the back surface of each second parcel rack (6) is fixedly connected to the telescopic end of the electric telescopic rod (5), wherein the two ends of the two return springs (9) are respectively in contact with the inner wall of the first parcel rack (4) and the outer surface of the clamping plate (8), and the other two ends of the return springs (9) are respectively in contact with the inner wall of the second parcel rack (6) and the outer surface of the clamping plate (8), and the upper surface of the support frame (1) is fixedly connected to a triangular hanging plate (11), and a shackle (12) is arranged inside the triangular hanging plate (11), and the outer surface of the shackle (12) is in contact with the inner wall of the triangular hanging plate (11).

3. The easily adjustable wind turbine blade hanger according to claim 1, characterized in that: The upper surface of each of the moving blocks (3) is fixedly connected to a limiting plate (13), and the bottom surface of each of the limiting plates (13) is in contact with the upper surface of the support frame (1).

4. The easily adjustable wind turbine blade hanger according to claim 1, characterized in that: The front side of each moving block (3) and the back side of each moving block (3) are fixedly connected to a limiting slider (14), and the outer surface of each limiting slider (14) is slidably connected to the inside of the support frame (1).

5. The easily adjustable wind turbine blade hanger according to claim 1, characterized in that: The front surface of each first parcel shelf (4) is fixedly connected to two limiting guide rods (15), and the outer surface of each limiting guide rod (15) is slidably connected to the inside of the second parcel shelf (6).

6. The easily adjustable wind turbine blade hanger according to claim 1, characterized in that: The front side of each first parcel shelf (4) is fixedly connected to two positioning pins (16), and the front side of each second parcel shelf (6) is provided with two positioning slots (17).

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