Special lifting appliance for wind power generation single blade

Abstract

The utility model discloses a special lifting appliance for a wind power generation single blade, which relates to the technical field of wind power construction and comprises a cross beam, and lifting rings are fixed at the front and rear ends of the left and right parts of the upper side of the cross beam; each clamping assembly comprises a top base, a connecting plate is fixed to the rear portion of the lower side of the top base, a supporting base is fixed to the bottom of the front side of the connecting plate, a plurality of first air cylinders are installed in the supporting base, the telescopic ends of the first air cylinders stretch out of the supporting base to be hinged to first extrusion plates, and a hydraulic cylinder is installed on the top base. And the output end of the hydraulic cylinder is connected with the lower pressing seat. According to the clamping device, the first air cylinders and the second air cylinders work to push the corresponding first extrusion plates and the corresponding second extrusion plates to move and abut against the surface of the single blade, the contact area between the clamping assembly and the single blade is increased, and the clamping stability of the single blade is effectively improved; and meanwhile, the single blade can be prevented from sliding off from the clamping assembly.

Description

Technical Field

[0001] This utility model relates to the field of wind power construction technology, specifically to a special lifting tool for a single blade of wind power generation. Background Technology

[0002] The installation of wind turbine blades refers to the process of attaching the blades from a wind turbine generator to the wind turbine itself. Wind turbine blades are a crucial component of a wind turbine. Due to the large mass and volume of wind turbine blades, a lifting device is typically used to lift and assemble them when installing them onto the wind turbine.

[0003] Currently, existing specialized lifting tools for single wind turbine blades mainly rely on clamping structures to hold and fix the blades. Because the surface of a single wind turbine blade is curved, the contact area between the clamping mechanism and the blade is small. During the lifting process, the blade may slide inside the clamping structure or even slip out, affecting the safety of the lifting operation. Utility Model Content

[0004] The purpose of this invention is to provide a special lifting tool for single blades of wind turbines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a special lifting device for single blades in wind power generation, comprising:

[0006] The crossbeam has lifting rings fixed at both ends of the upper left and right sides.

[0007] Two clamping assemblies are symmetrically fixed at both ends of a crossbeam. Each clamping assembly includes a top seat, a connecting plate fixed to the lower rear of the top seat, and a support seat fixed to the front bottom of the connecting plate. Multiple first cylinders are installed inside the support seat. The telescopic ends of the first cylinders extend out of the support seat and are hinged to a first pressing plate. A lower pressing seat is slidably connected to the front of the connecting plate. A hydraulic cylinder is installed on the top seat, and the output end of the hydraulic cylinder is connected to the lower pressing seat. Multiple second cylinders are installed inside the lower pressing seat, and the telescopic ends of the second cylinders extend out of the lower pressing seat and are hinged to a second pressing plate.

[0008] Preferably, the upper front part of the support base is provided with a first inclined surface, and a first triangular groove is opened in the support base corresponding to the position of the first inclined surface. The first cylinder is installed in the first triangular groove, and the first extrusion plate is located on the first inclined surface. When the first cylinder works, it pushes the first extrusion plate to move, so that the first extrusion plate abuts against the surface of the single blade, thereby achieving the limiting and fixing of the single blade.

[0009] Preferably, the lower front part of the pressure seat is provided with a second inclined surface, and a second triangular groove is opened in the pressure seat corresponding to the position of the second inclined surface. The second cylinder is installed in the second triangular groove, and the second extrusion plate is located on the second inclined surface. When the second cylinder works, it pushes the second extrusion plate to move, so that the second extrusion plate abuts against the surface of the single blade, thereby achieving the limiting and fixing of the single blade.

[0010] Preferably, the front side of the connecting plate is fixed with two vertically parallel slide rails, and the rear side of the lower pressure seat is fixed with a slide block corresponding to the position of the slide rails. The slide block is slidably installed on the slide rails, so that the lower pressure seat moves up and down stably and will not deviate.

[0011] Preferably, the top seat is fixedly connected to the crossbeam.

[0012] Preferably, a reinforcing plate is connected between the left and right connecting plates, and multiple reinforcing blocks are connected between the reinforcing plate and the crossbeam, which improves the connection strength between the two clamping components and the crossbeam, making the connection more stable and reliable.

[0013] Preferably, there are two hydraulic cylinders, which work synchronously to push the lower pressure seat downward, effectively squeezing the single blade.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] By placing a single blade on a support seat on two clamping assemblies, the hydraulic cylinder works to push the lower pressure seat down to squeeze the single blade. At the same time, multiple first cylinders and multiple second cylinders work to push the corresponding first and second extrusion plates to move and come into contact with the surface of the single blade, increasing the contact area between the clamping assemblies and the single blade, increasing the friction, effectively improving the stability of clamping the single blade, and preventing the single blade from slipping out of the clamping assemblies. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1 Another perspective illustration;

[0019] Figure 3 This is a schematic diagram of the support structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the lower pressure seat structure of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Crossbeam; 2. Lifting ring; 3. Clamping assembly; 4. Top seat; 5. Connecting plate; 6. Support seat; 7. First cylinder; 8. First pressing plate; 9. Lower pressing seat; 10. Hydraulic cylinder; 11. Second cylinder; 12. Second pressing plate; 13. First inclined surface; 14. First triangular groove; 15. Second inclined surface; 16. Second triangular groove; 17. Slide rail; 18. Slide seat; 19. Reinforcing plate. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figures 1 to 4 The wind turbine single-blade lifting tool shown includes:

[0025] The crossbeam 1 has lifting rings 2 fixed at both the front and rear ends of the upper left and right sides.

[0026] Two clamping assemblies 3 are symmetrically fixed at both ends of the crossbeam 1. Each clamping assembly 3 includes a top seat 4. A connecting plate 5 is fixed to the lower rear part of the top seat 4. A support seat 6 is fixed to the front bottom of the connecting plate 5. Multiple first cylinders 7 are installed inside the support seat 6. The telescopic end of the first cylinder 7 extends out of the support seat 6 and is hinged to a first pressing plate 8. A lower pressing seat 9 is slidably connected to the front side of the connecting plate 5. A hydraulic cylinder 10 is installed on the top seat 4. The output end of the hydraulic cylinder 10 is connected to the lower pressing seat 9. Multiple second cylinders 11 are installed inside the lower pressing seat 9. The telescopic end of the second cylinder 11 extends out of the lower pressing seat 9 and is hinged to a second pressing plate 12.

[0027] The upper front part of the support base 6 is provided with a first inclined surface 13. A first triangular groove 14 is opened in the support base 6 corresponding to the position of the first inclined surface 13. The first cylinder 7 is installed in the first triangular groove 14. The first extrusion plate 8 is located on the first inclined surface 13. When the first cylinder 7 works, it pushes the first extrusion plate 8 to move, so that the first extrusion plate 8 abuts against the surface of the single blade, thereby achieving the limiting and fixing of the single blade.

[0028] The lower front part of the pressure seat 9 is provided with a second inclined surface 15. A second triangular groove 16 is opened in the pressure seat 9 corresponding to the position of the second inclined surface 15. The second cylinder 11 is installed in the second triangular groove 16. The second extrusion plate 12 is located on the second inclined surface 15. The second cylinder 11 works to push the second extrusion plate 12 to move, so that the second extrusion plate 12 abuts against the surface of the single blade, thereby achieving the limiting and fixing of the single blade.

[0029] Two vertically parallel slide rails 17 are fixed on the front side of the connecting plate 5. A slide block 18 is fixed on the rear side of the lower pressure seat 9 corresponding to the position of the slide rails 17. The slide block 18 is slidably installed on the slide rails 17, so that the lower pressure seat 9 moves up and down stably and will not deviate.

[0030] The top seat 4 is fixedly connected to the crossbeam 1.

[0031] A reinforcing plate 19 is connected between the two connecting plates 5 on the left and right sides. Multiple reinforcing blocks 20 are connected between the reinforcing plate 19 and the crossbeam 1, which improves the connection strength between the two clamping components 3 and the crossbeam 1, making the connection more stable and reliable.

[0032] There are two hydraulic cylinders 10. The two hydraulic cylinders 10 work synchronously to push the lower pressure seat 9 downward, effectively squeezing the single blade.

[0033] In this invention, a single blade is placed on a support seat 6 on two clamping assemblies 3. A hydraulic cylinder 10 operates to push a lower pressure seat 9 downward to squeeze the single blade. The lower pressure seat 9 cooperates with the support seat 6 to clamp the single blade. At the same time, multiple first cylinders 7 on the support seat 6 operate to push the corresponding first extrusion plate 8 to move and come into contact with the surface of the single blade. Multiple second cylinders 11 on the lower pressure seat 9 operate to push the corresponding second extrusion plate 12 to move and come into contact with the surface of the single blade. This increases the contact area between the clamping assembly 3 and the single blade, increases the friction, effectively improves the stability of clamping the single blade, and prevents the single blade from slipping out of the clamping assembly 3.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A special lifting tool for single blades in wind power generation, characterized in that, include: A crossbeam (1) has two hanging rings (2) fixed at the front and rear ends of the upper left and right sides of the crossbeam (1); Two clamping assemblies (3) are symmetrically fixed at both ends of the crossbeam (1). Each clamping assembly (3) includes a top seat (4). A connecting plate (5) is fixed to the lower rear part of the top seat (4). A support seat (6) is fixed to the bottom front side of the connecting plate (5). Multiple first cylinders (7) are installed in the support seat (6). The telescopic end of the first cylinder (7) extends out of the support seat (6) and is hinged to a first pressing plate (8). A lower pressing seat (9) is slidably connected to the front side of the connecting plate (5). A hydraulic cylinder (10) is installed on the top seat (4). The output end of the hydraulic cylinder (10) is connected to the lower pressing seat (9). Multiple second cylinders (11) are installed in the lower pressing seat (9). The telescopic end of the second cylinder (11) extends out of the lower pressing seat (9) and is hinged to a second pressing plate (12).

2. The special lifting tool for a single blade of wind power generation according to claim 1, characterized in that: The upper front part of the support base (6) is provided with a first inclined surface (13), and a first triangular groove (14) is provided in the support base (6) corresponding to the position of the first inclined surface (13). The first cylinder (7) is installed in the first triangular groove (14), and the first extrusion plate (8) is located on the first inclined surface (13).

3. The special lifting tool for a single wind turbine blade according to claim 1, characterized in that: The lower front part of the pressure seat (9) is provided with a second inclined surface (15), and a second triangular groove (16) is opened in the pressure seat (9) corresponding to the position of the second inclined surface (15). The second cylinder (11) is installed in the second triangular groove (16), and the second extrusion plate (12) is located on the second inclined surface (15).

4. The special lifting tool for a single wind turbine blade according to claim 1, characterized in that: The front side of the connecting plate (5) is fixed with two vertically parallel slide rails (17), and the rear side of the lower pressure seat (9) is fixed with a slide block (18) corresponding to the position of the slide rails (17). The slide block (18) is slidably mounted on the slide rails (17).

5. A special lifting tool for a single wind turbine blade according to claim 1, characterized in that: The top seat (4) is fixedly connected to the crossbeam (1).

6. A special lifting tool for a single wind turbine blade according to claim 1, characterized in that: A reinforcing plate (19) is connected between the two connecting plates (5) on the left and right sides, and multiple reinforcing blocks (20) are connected between the reinforcing plate (19) and the crossbeam (1).

7. A special lifting tool for a single wind turbine blade according to claim 1, characterized in that: The hydraulic cylinder (10) is provided in two quantities.

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