A wind turbine blade tip demolding and cutting-free hoisting device

Abstract

This utility model relates to the field of wind turbine technology and proposes a wind turbine blade tip demolding and cutting-free hoisting device. It includes a hoisting frame with an electric hoist installed inside, and further includes a hook, a slide, a lifting mechanism, a buffer head, and a moving mechanism. The hook is located at the bottom of the electric hoist. Two slides are provided, each slidably mounted within the hoisting frame via a sliding assembly. The sliding assembly supports the two slides for lifting and lowering within the hoisting frame. The lifting mechanism is mounted on the hoisting frame. Each slide has two buffer heads via two support mechanisms. The moving mechanism is located at the bottom of the hoisting frame. This technical solution addresses the problem in the prior art where, during the process of lifting the blade tip from the mold, the blade tip is prone to vibration and swaying due to the influence of the blade material, which damages the strength of the blade tip and easily leads to a decrease in hoisting stability.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine technology, specifically to a wind turbine blade tip demolding and hoisting device that does not require cutting. Background Technology

[0002] Wind turbine blades have very high requirements for materials. They not only need to be lightweight, but also have high strength, corrosion resistance, and fatigue resistance. Therefore, wind turbine manufacturers now widely use composite materials to manufacture wind turbine blades. Composite materials account for up to 90% of the total weight of wind turbine blades. The materials used to manufacture blades have evolved from the initial linen covering wooden boards to steel, aluminum alloys, and now composite materials. When manufacturing wind turbine blades, manufacturers often use glass fiber reinforced resin for the blade shell, while the blade tip and main blade beam use higher strength carbon fiber. The tip of the wind turbine blade needs to be molded during production.

[0003] Existing wind turbine blade tip demolding and cutting-free hoisting devices are prone to vibration and shaking when the blade tip is lifted from the mold during the process of detaching from the mold due to the influence of the blade material. This not only damages the strength of the blade tip but also easily leads to a decrease in the stability of the hoisting, reducing the hoisting efficiency and effectiveness of wind turbine blade tips. Utility Model Content

[0004] This invention proposes a wind turbine blade tip demolding and hoisting device without cutting, which solves the problem in the prior art where, during the process of hoisting the blade tip from the mold, the blade tip is prone to vibration and shaking due to the influence of the blade material. This not only damages the strength of the blade tip but also easily leads to a decrease in the stability of the hoisting.

[0005] The technical solution of this utility model is as follows: A wind turbine blade tip demolding and cutting-free hoisting device includes a hoisting frame, an electric hoist installed inside the hoisting frame, and further includes: a hook, a slide, a lifting mechanism, a buffer head, and a moving mechanism. The hook is located at the bottom end of the electric hoist. Two slides are provided, and both slides are slidably mounted inside the hoisting frame via a sliding assembly. The sliding assembly is used to support the two slides to move up and down within the hoisting frame. The lifting mechanism is located on the hoisting frame and is used to drive the two slides to move up and down. Each of the two slides has two buffer heads provided via two support mechanisms. The support mechanisms are used to support the buffer heads to spring back. The moving mechanism is located at the bottom end of the hoisting frame and is used to support the movement of the hoisting frame.

[0006] To support the lifting and lowering movement of the carriage within the hoisting frame, the sliding assembly includes a sliding rod and a slider. The hoisting frame has two sliding grooves, each containing a sliding rod. Each sliding rod has a slider slidably connected to it, and the two sliders are slidably connected to the two sliding grooves respectively. The two carriages are fixedly connected to the opposite sides of the two sliders respectively.

[0007] To drive the two carriages to move up and down, the lifting mechanism includes: a drive rod, a top plate, a drive screw, and a drive assembly. A drive rod is fixedly connected to each of the two carriages, and both drive rods are slidably connected to the hoisting frame. The top plate is fixedly connected to the top ends of the two drive rods, and the bottom end of the drive screw is fixedly connected to the top end of the hoisting frame. A through hole is provided on the top plate, and the drive screw is located within the through hole. The drive assembly is mounted on the top plate and is used to drive the top plate and the two drive rods to move up and down.

[0008] To drive the top plate and two drive rods to move up and down, the drive assembly includes: a rotating gear, a drive gear, and a first motor. The rotating gear is rotatably connected to the top of the top plate and has a threaded hole. The drive screw is threaded into the threaded hole. The drive gear is rotatably connected to the top of the top plate and meshes with the rotating gear. The first motor is installed at the top of the top plate, and the output end of the first motor passes through the top plate and is fixedly connected to the drive gear.

[0009] To support the buffer head, the support mechanism includes a support rod, a fixed plate, and a support spring. The slide has a sliding hole, the support rod is slidably connected in the sliding hole, the fixed plate is fixedly connected to one end of the support rod, the buffer head is fixedly connected to the other side of the fixed plate, and the support spring is sleeved on the circumferential surface of the support rod. The two ends of the support spring are fixedly connected to the fixed plate and the slide, respectively.

[0010] To support the movement of the hoisting frame, the moving mechanism includes a rotating base and moving wheels. Multiple rotating bases are provided, and each rotating base is fixedly connected to the bottom end of the hoisting frame. Each rotating base has a moving wheel rotatably connected to its bottom end.

[0011] The working principle and beneficial effects of this utility model are as follows:

[0012] In this invention, the lifting mechanism, sliding components, and support mechanism facilitate the support of the wind turbine blade tip during the lifting process by the electric hoisting hook. This reduces vibration and swaying of the wind turbine blade tip during the lifting process, minimizes minor damage to the blade tip, and improves the stability of the lifting, as well as the efficiency and effectiveness of the lifting of the wind turbine blade tip. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the lifting mechanism, sliding component, and support mechanism of this utility model;

[0016] Figure 3 This utility model Figure 1 A magnified structural diagram of point A in the middle;

[0017] Figure 4 This utility model Figure 1 A magnified structural diagram of a portion of point B in the middle.

[0018] In the diagram: 1. Lifting frame; 2. Electric lifting device; 3. Hook; 4. Slide; 5. Buffer head; 6. Slide rod; 7. Sliding block; 8. Drive rod; 9. Top plate; 10. Drive screw; 11. Rotating gear; 12. Drive gear; 13. First motor; 14. Support rod; 15. Fixing plate; 16. Support spring; 17. Rotating seat; 18. Moving wheel. Detailed Implementation

[0019] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0020] like Figures 1-4As shown, this embodiment proposes a wind turbine blade tip demolding and cutting-free hoisting device, including a hoisting frame 1, an electric hoisting device 2 installed inside the hoisting frame 1, and further including: a hook 3, a slide 4, a lifting mechanism, a buffer head 5, and a moving mechanism. The hook 3 is located at the bottom end of the electric hoisting device 2. Two slides 4 are provided, and both slides 4 are slidably mounted inside the hoisting frame 1 via a sliding assembly. The sliding assembly is used to support the two slides 4 to move up and down within the hoisting frame 1. The lifting mechanism is mounted on the hoisting frame 1 and is used to drive the two slides 4 to move up and down. Each of the two slides 4 is supported by two... The support mechanism is equipped with two buffer heads 5. The support mechanism is used to support the rebound of the buffer heads 5. The moving mechanism is set at the bottom of the hoisting frame 1 to support the movement of the hoisting frame 1. Through the setting of the lifting mechanism, sliding component and support mechanism, it is convenient to support the tip of the wind turbine blade during the process of the electric hoisting tool 2 driving the hook 3 to hoist the tip of the wind turbine blade. This reduces the vibration and shaking of the tip of the wind turbine blade during the hoisting process, makes it less likely to cause minor damage to the tip of the wind turbine blade, and improves the stability of the hoisting, as well as the hoisting efficiency and effect of the wind turbine blade tip.

[0021] The sliding assembly includes a slide rod 6 and a slider 7. The lifting frame 1 has two slide grooves, and a slide rod 6 is fixedly connected to each of the two slide grooves. A slider 7 is slidably connected to each of the two slide rods 6. The two sliders 7 are slidably connected to the two slide grooves respectively. The two slide frames 4 are fixedly connected to the opposite side of the two sliders 7 respectively. The sliders 7 slide in the slide rods 6 and the slide grooves, thereby supporting the slide frames 4 and the buffer head 5 to slide up and down.

[0022] The lifting mechanism includes: a drive rod 8, a top plate 9, a drive screw 10, and a drive assembly. Drive rods 8 are fixedly connected to both sliders 7, and both drive rods 8 are slidably connected to the hoisting frame 1. The top plate 9 is fixedly connected to the top ends of the two drive rods 8, and the bottom end of the drive screw 10 is fixedly connected to the top end of the hoisting frame 1. A through hole is provided on the top plate 9, and the drive screw 10 is located within the through hole. The drive assembly is mounted on the top plate 9 and is used to drive the top plate 9 and the two drive rods 8 to move vertically. The drive assembly includes: a rotating gear 11, a drive gear 12, and a first motor 13. The rotating gear 11 is rotatably connected to the top end of the top plate 9, and a screw hole is provided on the rotating gear 11. Rod 10 is threaded into a threaded hole. Drive gear 12 is rotatably connected to the top of top plate 9. Drive gear 12 meshes with rotating gear 11. First motor 13 is mounted on the top of top plate 9. The output end of first motor 13 passes through top plate 9 and is fixedly connected to drive gear 12. Support mechanism includes: support rod 14, fixed plate 15, and support spring 16. Sliding hole is provided on slide 4. Support rod 14 is slidably connected in sliding hole. Fixed plate 15 is fixedly connected to one end of support rod 14. Buffer head 5 is fixedly connected to the other side of fixed plate 15. Support spring 16 is sleeved on the circumferential surface of support rod 14. Both ends of support spring 16 are fixedly connected to fixed plate 15 and slide 4 respectively.

[0023] The first motor 13 installed on the top plate 9 drives the drive gear 12 and the rotating gear 11 to rotate. When the rotating gear 11 rotates, the thread on the rotating gear 11 rotates on the drive screw 10, thereby driving the top plate 9 and the two drive rods 8 to move up and down. When the two drive rods 8 move up and down, they drive the two sliders 7 and the two carriages 4 to move up and down, thereby driving the multiple buffer heads 5 to move synchronously, so that the buffer heads 5 abut against the tip of the wind turbine blade, and the fixed plate 15 is supported by the support spring 16, thereby adaptively adjusting the contact force between the buffer head 5 and the tip of the wind turbine blade.

[0024] The moving mechanism includes a rotating seat 17 and a moving wheel 18. Multiple rotating seats 17 are provided, and multiple rotating seats 17 are fixedly connected to the bottom end of the hoisting frame 1. The bottom end of each rotating seat 17 is rotatably connected to a moving wheel 18. The moving wheel 18 rotates on the rotating seat 17, thereby supporting the hoisting frame 1 to move.

[0025] The working principle is as follows: When it is necessary to demold and hoist the tip of the wind turbine blade, the hook 3 is hung on the binding strap of the wind turbine blade tip, and then the wind turbine blade tip is lifted by the electric hoist 2. At this time, the first motor 13 installed on the top plate 9 drives the drive gear 12 and the rotating gear 11 to rotate. When the rotating gear 11 rotates, the thread on the rotating gear 11 rotates on the drive screw 10, thereby driving the top plate 9 and the two drive rods 8 to move up and down. When the two drive rods 8 move up and down, they drive the two sliders 7 and the two slides 4 to move up and down. The sliders 7 slide in the slide rod 6 and the slide groove, thereby supporting the slides 4 and the buffer heads 5 to move up and down, thereby driving the multiple buffer heads 5 to move synchronously, so that the buffer heads 5 abut against the tip of the wind turbine blade, and the fixed plate 15 is supported by the support spring 16, thereby adaptively adjusting the contact force between the buffer heads 5 and the tip of the wind turbine blade.

[0026] It should also be noted that the buffer head 5 is made of a relatively hard sponge material, which can both support the tip of the wind turbine blade and reduce damage to the tip of the wind turbine blade.

[0027] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A wind turbine blade tip demolding and cutting-free hoisting device, comprising a hoisting frame (1), wherein an electric hoisting tool (2) is installed inside the hoisting frame (1), characterized in that, Also includes: Hook (3), the hook (3) is disposed at the bottom end of the electric lifting device (2); The slide (4) is provided in two, and the two slides (4) are slidably disposed in the hoisting frame (1) by means of a sliding assembly. The sliding assembly is used to support the two slides (4) to move up and down in the hoisting frame (1); A lifting mechanism is provided on the hoisting frame (1) and is used to drive the two carriages (4) to move up and down; The two slides (4) are provided with two buffer heads (5) by two support mechanisms. The support mechanisms are used to support the buffer heads (5) to rebound. A moving mechanism is provided at the bottom end of the hoisting frame (1) to support the hoisting frame (1) in moving.

2. The wind turbine blade tip demolding and cutting-free hoisting device according to claim 1, characterized in that, The sliding component includes: The sliding rod (6) has two sliding grooves on the hoisting frame (1), and the sliding rod (6) is fixedly connected in both sliding grooves. The slider (7) is slidably connected to both of the two slider rods (6). The two sliders (7) are slidably connected to the two slide grooves respectively. The two slide frames (4) are fixedly connected to the opposite side of the two sliders (7).

3. The wind turbine blade tip demolding and cutting-free hoisting device according to claim 2, characterized in that, The lifting mechanism includes: The drive rod (8) is fixedly connected to both of the two sliders (7), and the two drive rods (8) are slidably connected to the hoisting frame (1); Top plate (9), which is fixedly connected to the top of the two drive rods (8); A drive screw (10) is provided, the bottom end of which is fixedly connected to the top end of the hoisting frame (1). A through hole is provided on the top plate (9), and the drive screw (10) is located in the through hole. A drive assembly is disposed on the top plate (9) and is used to drive the top plate (9) and the two drive rods (8) to move up and down.

4. The wind turbine blade tip demolding and cutting-free hoisting device according to claim 3, characterized in that, The driving component includes: Rotating gear (11) is rotatably connected to the top of the top plate (9). A screw hole is provided on the rotating gear (11), and the driving screw (10) is threaded into the screw hole. A drive gear (12) is rotatably connected to the top of the top plate (9), and the drive gear (12) meshes with the rotating gear (11); The first motor (13) is mounted on the top of the top plate (9). The output end of the first motor (13) passes through the top plate (9) and is fixedly connected to the drive gear (12).

5. The wind turbine blade tip demolding and cutting-free hoisting device according to claim 1, characterized in that, The supporting structure includes: The support rod (14) has a sliding hole on the slide (4), and the support rod (14) is slidably connected in the sliding hole; A fixing plate (15) is fixedly connected to one end of the support rod (14), and a buffer head (5) is fixedly connected to the other side of the fixing plate (15). A support spring (16) is sleeved on the circumferential surface of the support rod (14), and the two ends of the support spring (16) are fixedly connected to the fixing plate (15) and the slide (4) respectively.

6. The wind turbine blade tip demolding and cutting-free hoisting device according to claim 1, characterized in that, The moving mechanism includes: Rotary seat (17), multiple rotating seats (17) are provided, and multiple rotating seats (17) are fixedly connected to the bottom end of the hoisting frame (1); The bottom end of each of the rotating seats (17) is rotatably connected to the movable wheel (18).

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