Lifting frame for installation and construction of wind power tower drum

Abstract

The utility model relates to the technical field of crane transportation machinery, and discloses a hoisting frame for installation and construction of a wind power tower drum, which comprises a portal frame, a vehicle body is arranged above the portal frame, a steel cable is arranged in the vehicle body, a cleaning component is arranged in the vehicle body, a hook is arranged below the vehicle body, a connecting block is arranged below the hook, and the connecting block is connected with the portal frame. A clamping assembly is fixedly connected to the lower portion of the connecting block. The clamping assembly comprises a connecting frame, a first gear is rotationally connected into the connecting frame, two racks are slidably connected into the connecting frame, the first gear is connected with the two racks in a meshed mode, and one ends of the two racks are fixedly connected with moving blocks. According to the hoisting frame for installation and construction of the wind power tower drum, through meshing transmission of the first gear and the two racks and combination of driving of the first motor, the movable blocks synchronously slide inwards or outwards, the self-adaptive clamping function is achieved, the clamping distance can be automatically adjusted through the structure, and the hoisting frame is accurately matched with the wind power tower drums with different diameters.

Description

Technical Field

[0001] This utility model relates to the field of crane transportation machinery technology, and in particular to a lifting frame for wind turbine tower installation. Background Technology

[0002] The wind turbine tower is the core structure supporting the wind turbine generator. It is usually composed of multiple steel or concrete sections and can reach a height of tens to hundreds of meters. It is used to support equipment such as the nacelle and blades and ensure their stability under complex wind conditions. During the movement of the tower, due to its large size, extremely heavy weight, and strict requirements for surface protection, a special hoisting frame is needed to improve the stability and efficiency of the hoisting process.

[0003] Existing lifting frames for wind turbine tower installation mainly consist of steel cables, pulley systems, and rigid connectors, which are existing technologies and will not be elaborated upon further here. Because of their reliance on rigid structures and manual operation, existing lifting frames for wind turbine tower installation suffer from significant deficiencies in stability, adaptability, and surface protection. Their clamping stability is poor, and their adaptability is insufficient, failing to adapt to changes in tower diameter. Furthermore, the fixed-size clamps require frequent replacement or manual adjustment. Therefore, a new type of lifting frame for wind turbine tower installation with a novel clamping method is needed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a lifting frame for wind turbine tower installation, which aims to improve problems such as poor clamping stability and insufficient adaptability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lifting frame for wind turbine tower installation, comprising a gantry frame, a vehicle body arranged above the gantry frame, a steel cable arranged inside the vehicle body, a cleaning component arranged inside the vehicle body, a hook arranged below the vehicle body, a connecting block arranged below the hook, and a clamping component fixedly connected below the connecting block;

[0006] The clamping assembly includes a connecting frame, the upper surface of which is fixedly connected to the lower surface of the connecting block. A gear is rotatably connected inside the connecting frame, and two racks are slidably connected inside the connecting frame. The gear meshes with both racks, and a moving block is fixedly connected to one end of each rack.

[0007] Furthermore, the cleaning component includes a box body, the outer wall of which is disposed inside the vehicle body, and a groove is formed inside the vehicle body. Both ends of the box body are slidably connected to the groove, and rollers are rotatably connected inside the box body.

[0008] Furthermore, a spring is fitted on the outer wall of the box, and one end of the spring is fixedly connected to the inside of the vehicle body.

[0009] Furthermore, a second motor is installed inside the vehicle body, and the output end of the second motor is fixedly connected inside the steel cable.

[0010] Furthermore, a second gear is rotatably connected inside the vehicle body, and a third gear is rotatably connected inside the vehicle body. The second gear and the third gear are meshed together. A third motor is installed inside the vehicle body, and the output end of the third motor is fixedly connected inside the second gear.

[0011] Furthermore, the vehicle body is rotatably connected to a pulley, the gear is fixedly connected to a pulley, and the upper surface of the gantry is fixedly connected to a track.

[0012] Furthermore, a motor is installed inside the connecting frame, and the output end of the motor is fixedly connected inside the gear.

[0013] Furthermore, a tower is provided inside the gantry frame, and a slide rail seat is slidably connected below the gantry frame.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the hoisting frame for wind turbine tower installation is driven by a gear and two racks, combined with a motor, to make the moving block slide synchronously inward or outward, achieving an adaptive clamping function. This structure can automatically adjust the clamping distance to accurately adapt to wind turbine towers of different diameters, avoiding the problem of uneven clamping force caused by size mismatch in traditional rigid clamps. At the same time, the flexible contact design of the protective material wrapped on the surface of the moving block can significantly reduce frictional damage to the anti-corrosion coating of the tower, and improve the stability and safety of tower movement.

[0016] 2. In this utility model, the cleaning component of the hoisting frame for wind turbine tower installation and construction uses the sliding of the box body in the groove, combined with the elastic support of the spring, to keep the rollers in close contact with the tower surface. During the hoisting process, the rollers rotate with the steel cable, automatically removing surface dust, oil and other attachments, ensuring the cleanliness of the steel cable, avoiding impurities from corroding or damaging the steel cable, and further improving construction efficiency and equipment reliability. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a lifting frame for wind turbine tower installation proposed in this utility model;

[0018] Figure 2 This is a side view of a hoisting frame for wind turbine tower installation proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the tower structure of a lifting frame for wind turbine tower installation proposed in this utility model;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the hook structure of a lifting frame for wind turbine tower installation proposed in this utility model;

[0022] Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0023] Legend:

[0024] 1. Gantry frame; 2. Track; 3. Car body; 4. Steel cable; 5. Box; 6. Spring; 7. Roller; 8. Groove; 9. Connecting block; 10. Connecting frame; 11. Motor 1; 12. Gear 1; 13. Rack; 14. Moving block; 15. Tower; 16. Gear 2; 17. Gear 3; 18. Pulley; 19. Slide rail seat; 20. Hook; 21. Motor 2; 22. Motor 3. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-4This utility model provides an embodiment of a hoisting frame for wind turbine tower installation, comprising a gantry frame 1, which serves as the main support structure. A vehicle body 3 moves along a track 2 above it, covering hoisting needs at different locations. A steel cable 4 is installed inside the vehicle body 3, driven by a motor 21 to extend and retract, controlling the hoisting height. A cleaning assembly is installed inside the vehicle body 3. A hook 20 is installed below the vehicle body 3, and a connecting block 9 is connected below the hook 20. A clamping assembly is fixedly connected below the connecting block 9. The clamping assembly includes a connecting frame 10, the upper surface of which is fixedly connected to the lower surface of the connecting block 9. The connecting frame 10 has an internal rotating mechanism. The connecting frame 10 is connected by a gear 12. Inside the connecting frame 10, there are two racks 13 that are slidably connected and face opposite directions. The gear 12 is meshed with both racks 13. One end of each rack 13 is fixedly connected to a moving block 14. Inside the connecting frame 10, there is a motor 11. The output end of the motor 11 is fixedly connected inside the gear 12. Inside the gantry frame 1, there is a tower 15. When the motor 11 is started, it drives the gear 12 to rotate. The gear 12 meshes with the two racks 13, causing the two racks 13 to slide synchronously in opposite directions inside the connecting frame 10, which drives the moving block 14 to move inward or outward, and to fit tightly against the outer wall of the tower 15.

[0027] Reference Figures 1-6 The cleaning component includes a box 5, the outer wall of which is set inside the vehicle body 3. A groove 8 is provided inside the vehicle body 3. Both ends of the box 5 are slidably connected inside the groove 8. A roller 7 is rotatably connected inside the box 5. A spring 6 is fitted on the outer wall of the box 5. One end of the spring 6 is fixedly connected inside the vehicle body 3. The box 5 slides in the groove 8 of the vehicle body 3. The spring 6 provides elastic support, so that the roller 7 is always in close contact with the surface of the steel cable 4. During the hoisting process, the roller 7 rotates with the movement of the steel cable 4, automatically removing surface dust, oil and attachments. A pulley 18 is rotatably connected inside the vehicle body 3. A gear 3 17 is fixedly connected to the pulley 18. A slide rail seat 19 is slidably connected below the gantry frame 1. The gantry frame 1 moves through the slide rail seat 19.

[0028] Working principle: When this type of hoisting frame is needed for wind turbine tower installation, the gantry frame 1 is moved to the construction site via the slide rail seat 19. The vehicle body 3 is then moved along the track 2 to directly above the target tower 15. The steel cable 4 is linked to the second motor 21 and the third motor 22 via the pulley system 18. The length of the steel cable is adjusted to match the hoisting height of the tower 15. The first motor 11 is started, driving the first gear 12 to rotate. The first gear 12 meshes with two racks 13, causing the two racks 13 to slide synchronously in opposite directions along the inside of the connecting frame 10, thus driving the moving block 14 to move inward or outward. The surface of the moving block 14 is covered with flexible protective material, which closely fits the outer wall of the tower 15 by adaptively adjusting the spacing to ensure uniform distribution of clamping force. The steel cable 4 is connected to the connecting block 9 at the top of the tower 15 through the hook 20. The motor 21 drives the gear 2 16 to mesh with the gear 3 17, which drives the pulley 18 to rotate and lift the tower 15 to the predetermined height. The box 5 slides in the groove 8 of the vehicle body 3. The spring 6 provides elastic support so that the roller 7 is always in close contact with the surface of the steel cable 4. During the hoisting process, the roller 7 rotates with the movement of the steel cable 4, automatically removing dust, oil and other attachments from the surface.

[0029] Finally, it should be noted that the above description is only 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. A hoisting frame for wind turbine tower installation, comprising a gantry frame (1), characterized in that: A vehicle body (3) is provided above the gantry frame (1), a steel cable (4) is provided inside the vehicle body (3), a cleaning component is provided inside the vehicle body (3), a hook (20) is provided below the vehicle body (3), a connecting block (9) is provided below the hook (20), and a clamping component is fixedly connected below the connecting block (9). The clamping assembly includes a connecting frame (10), the upper surface of which is fixedly connected to the lower surface of the connecting block (9). A gear (12) is rotatably connected inside the connecting frame (10), and two racks (13) are slidably connected inside the connecting frame (10). The gear (12) meshes with both racks (13), and a moving block (14) is fixedly connected to one end of each rack (13).

2. The lifting frame for wind turbine tower installation construction according to claim 1, characterized in that: The cleaning component includes a box (5), the outer wall of which is disposed inside the vehicle body (3), and a groove (8) is provided inside the vehicle body (3). Both ends of the box (5) are slidably connected inside the groove (8), and a roller (7) is rotatably connected inside the box (5).

3. The lifting frame for wind turbine tower installation construction according to claim 2, characterized in that: A spring (6) is fitted on the outer wall of the box (5), and one end of the spring (6) is fixedly connected to the inside of the vehicle body (3).

4. The lifting frame for wind turbine tower installation construction according to claim 1, characterized in that: The vehicle body (3) is equipped with a second motor (21), and the output end of the second motor (21) is fixedly connected to the inside of the steel cable (4).

5. The lifting frame for wind turbine tower installation according to claim 1, characterized in that: Gear 2 (16) is rotatably connected inside the vehicle body (3), and gear 3 (17) is rotatably connected inside the vehicle body (3). Gear 2 (16) and gear 3 (17) are meshed together. Motor 3 (22) is installed inside the vehicle body (3), and the output end of motor 3 (22) is fixedly connected inside gear 2 (16).

6. A lifting frame for wind turbine tower installation according to claim 5, characterized in that: The vehicle body (3) is rotatably connected to a pulley (18), the gear three (17) is fixedly connected to the pulley (18), and the gantry frame (1) is fixedly connected to a track (2).

7. The lifting frame for wind turbine tower installation construction according to claim 1, characterized in that: The connecting frame (10) is equipped with a motor (11), and the output end of the motor (11) is fixedly connected to the gear (12).

8. The lifting frame for wind turbine tower installation construction according to claim 1, characterized in that: The gantry (1) is equipped with a tower (15) inside, and a slide rail seat (19) is slidably connected below the gantry (1).

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