Lifting appliance switching device for lifting cabin of wind generating set

Abstract

The utility model relates to the technical field of cabin hoisting of wind generating sets, in particular to a sling switching device for hoisting a cabin of a wind generating set, which comprises a lifting lug, the front end of the lifting lug is provided with a through hole penetrating front and back, the lower end of the lifting lug is fixedly connected with a fixing rod, and the lower part of the outer surface of the fixing rod is fixedly sleeved with a balance component. And the lower end of the fixing rod is fixedly connected with a switching assembly. According to the lifting appliance switching device for lifting the cabin of the wind generating set, an excellent buffering and damping effect is achieved through the buffering assembly, at the moment of lifting, impact force acts on the movable rod, the hydraulic damper consumes energy through flowing of hydraulic oil, the spring buffer absorbs energy through elastic deformation of the spring buffer, and the buffering effect is achieved. The hydraulic cylinder and the lifting cylinder stretch out and draw back along the interior of the fixing cylinder, impact force is converted into hydraulic energy and elastic potential energy, impact force transmitted to a cabin and lifting equipment is greatly reduced, components in the cabin and the lifting equipment are effectively protected, and the service life of the equipment is prolonged.

Description

A lifting adapter for hoisting wind turbine nacelles Technical Field

[0001] This utility model relates to the field of wind turbine nacelle hoisting technology, and in particular to a hoisting adapter for wind turbine nacelle hoisting. Background Technology

[0002] In the wind power industry, wind turbine nacelles are large and heavy, and their hoisting operations place extremely high demands on the stability, safety, and adaptability of the lifting equipment. At the moment of hoisting, the power output of the hoisting equipment and the inertia of the nacelle will generate a large impact force. Traditional hoisting equipment for wind turbine nacelles lacks a buffer structure, causing the impact force to act directly on the nacelle and the hoisting equipment, which can easily damage the precision components inside the nacelle and cause wear and tear on the hoisting equipment. Therefore, we have introduced a hoisting equipment adapter for wind turbine nacelles. Summary of the Invention

[0003] The main purpose of this utility model is to provide a lifting adapter for hoisting wind turbine nacelles, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A lifting adapter for hoisting a wind turbine nacelle includes a lifting lug, a through hole at the front end of the lifting lug, a reinforcing ring fixedly sleeved in the through hole, a fixed rod fixedly connected to the lower end of the lifting lug, a balancing component fixedly sleeved on the lower part of the outer surface of the fixed rod, and an adapter component fixedly connected to the lower end of the fixed rod.

[0006] The adapter assembly includes a mounting block, a buffer assembly fixedly connected to the upper end of the mounting block, three balance bars fixedly connected to the outer surface of the mounting block, a balance guide slider fixedly connected to the end of each of the three balance bars away from the center of the mounting block, an adapter hook fixedly connected to the lower end of the mounting block, and the upper end of the buffer assembly fixedly connected to the lower end of the fixed bar.

[0007] Preferably, the buffer assembly includes a fixed cylinder, on the upper inner wall of which a hydraulic damper and a spring buffer are fixedly installed. A movable rod is fixedly installed at the lower end of the hydraulic damper and the lower end of the spring buffer. The upper end of the fixed cylinder is fixedly connected to the lower end of the fixed rod, and the lower end of the movable rod is fixedly connected to the upper end of the mounting block.

[0008] By adopting the above technical solution: at the moment of lifting, the spring buffer, relying on its own elasticity, quickly deforms to absorb part of the impact force and reduce the instantaneous impact on the engine room. At the same time, the hydraulic damper utilizes the damping characteristics of hydraulic oil to dissipate energy through the flow of oil in the damping orifice, converting the impact force into heat energy for dissipation. This effectively reduces the vibration impact on the precision equipment and lifting equipment inside the engine room, reduces the risk of equipment damage caused by vibration, and extends the service life of the equipment.

[0009] Preferably, the balancing assembly includes a fixed ring, a plurality of connecting rods are fixedly connected to the outer surface of the fixed ring, the ends of the plurality of connecting rods away from the center of the fixed ring are jointly fixedly connected to the connecting ring, three guide rods are fixedly connected to the outer surface of the connecting ring, and limit blocks are fixedly connected to the lower ends of the three guide rods, and the fixed ring is fixedly sleeved on the fixed rods.

[0010] By adopting the above technical solution, when the balance guide slider slides on the guide rod, the limiting block can prevent the balance guide slider from sliding off the guide rod, thus avoiding the failure of the balance component due to the balance guide slider falling off.

[0011] Preferably, a plurality of the connecting rods are arranged in a circular array around the center of the fixing ring, and three of the guide rods are arranged in a circular array around the center of the connecting ring.

[0012] By adopting the above technical solution, the attitude of the transition component can be quickly and uniformly adjusted based on the symmetry of the ring array distribution during the sliding process of the balance guide slider along the guide rod.

[0013] Preferably, the three balance guide sliders are movably sleeved on the corresponding three guide rods.

[0014] By adopting the above technical solution, three balance guide sliders are respectively movably sleeved on the corresponding three guide rods, providing better balance and stability for the device during buffering.

[0015] Preferably, the lower end of the movable rod is movably connected to the lower inner wall of the fixed cylinder, and the hydraulic damper is located inside the spring buffer and has a gap with the inner wall of the spring buffer.

[0016] By adopting the above technical solution: under the vibration and impact during the hoisting process, if the hydraulic damper and the spring buffer come into contact, it is easy to generate a large impact force and wear, which will lead to component damage. The existence of this gap allows the hydraulic damper and the spring buffer to maintain relatively independent yet coordinated work during the extension and retraction process, reducing friction and wear between components, extending the service life of the buffer assembly, and also reducing maintenance costs and downtime risks caused by component damage.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this utility model, an excellent buffering and shock absorption effect is achieved through a buffer assembly. The hydraulic damper and spring buffer inside the fixed cylinder work together. At the moment of lifting, the impact force acts on the movable rod. The hydraulic damper consumes energy through the flow of hydraulic oil, and the spring buffer absorbs energy by its own elastic deformation. The two extend and retract along the inside of the fixed cylinder, converting the impact force into hydraulic energy and elastic potential energy, which greatly reduces the impact force transmitted to the engine room and lifting equipment, effectively protects the internal components of the engine room and the lifting equipment, and extends the service life of the equipment.

[0019] 2. In this utility model, the balancing component and the adapter component work together to improve the stability of the hoisting. When the force on the adapter component changes, the three balancing guide sliders slide on the corresponding three guide rods, and the balance rods adjust their posture accordingly. Through the sliding guidance of the balancing guide sliders and guide rods, as well as the lever effect of the balance rods, the tilt and sway of the adapter component can be quickly corrected, so that the nacelle remains stable during the hoisting process, effectively reducing the installation error caused by swaying, improving the installation accuracy of the nacelle, and ensuring the normal operation of the wind turbine generator set. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of a hoisting adapter for hoisting a wind turbine generator nacelle according to the present invention.

[0021] Figure 2 is a schematic diagram of the balance component of a lifting tool adapter for hoisting a wind turbine generator nacelle according to this utility model.

[0022] Figure 3 is a schematic diagram of the structure of the transfer component of the hoisting tool transfer device for wind turbine generator nacelle of this utility model;

[0023] Figure 4 is a cross-sectional view of the buffer assembly of a hoisting adapter for wind turbine generator nacelle according to the present invention (the fixed cylinder is cut out).

[0024] In the diagram: 1. Lifting lug; 2. Through hole; 3. Reinforcing ring; 4. Fixing rod; 5. Balancing assembly; 6. Adapter assembly; 51. Fixing ring; 52. Connecting rod; 53. Connecting ring; 54. Guide rod; 55. Limiting block; 61. Buffer assembly; 62. Mounting block; 63. Balancing rod; 64. Balancing guide slider; 65. Adapter hook; 611. Fixing cylinder; 612. Hydraulic damper; 613. Spring buffer; 614. Movable rod. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please refer to Figures 1-4. This utility model provides a technical solution:

[0029] A lifting adapter for hoisting a wind turbine nacelle includes a lifting lug 1, a through hole 2 at the front end of the lifting lug 1, a reinforcing ring 3 fixedly sleeved inside the through hole 2, a fixing rod 4 fixedly connected to the lower end of the lifting lug 1, a balancing component 5 fixedly sleeved on the lower part of the outer surface of the fixing rod 4, and an adapter component 6 fixedly connected to the lower end of the fixing rod 4.

[0030] In this embodiment, the adapter component 6 includes a mounting block 62. A buffer component 61 is fixedly connected to the upper end of the mounting block 62. Three balance bars 63 are fixedly connected to the outer surface of the mounting block 62. A balance guide slider 64 is fixedly connected to the end of each of the three balance bars 63 away from the center of the mounting block 62. An adapter hook 65 is fixedly connected to the lower end of the mounting block 62. The upper end of the buffer component 61 is fixedly connected to the lower end of the fixed rod 4. The buffer component 61 includes a fixed cylinder 611. A hydraulic damper 612 and a spring buffer 613 are fixedly installed on the upper inner wall of the fixed cylinder 611. A movable rod 614 is fixedly installed at the lower end of the hydraulic damper 612 and the lower end of the spring buffer 613. The upper end of the fixed cylinder 611 is fixedly connected to the lower end of the fixed rod 4, and the lower end of the movable rod 614 is fixedly connected to the upper end of the mounting block 62. Component 5 includes a fixed ring 51, with several connecting rods 52 fixedly connected to the outer surface of the fixed ring 51. The ends of the connecting rods 52 away from the center of the fixed ring 51 are all fixedly connected to a connecting ring 53. Three guide rods 54 are fixedly connected to the outer surface of the connecting ring 53. Limiting blocks 55 are fixedly connected to the lower ends of the three guide rods 54. The fixed ring 51 is fixedly sleeved on the fixed rods 4. The several connecting rods 52 are arranged in a circular array around the center of the fixed ring 51, and the three guide rods 54 are arranged in a circular array around the center of the connecting ring 53. Three balance guide sliders 64 are movably sleeved on the corresponding three guide rods 54. The lower end of the movable rod 614 is movably connected to the lower inner wall of the fixed cylinder 611. The hydraulic damper 612 is located inside the spring buffer 613 and has a gap with the inner wall of the spring buffer 613.

[0031] It should be noted that this utility model is a lifting adapter for hoisting a wind turbine nacelle. Before use, the hoisting structure of the hoisting equipment is passed through the through hole 2 at the front end of the lifting lug 1, ensuring that the hoisting structure of the hoisting equipment and the reinforcing ring 3 are tightly fitted together, thus completing the connection between this device and the hoisting equipment. The adapter hook 65 is then hung at the hoisting point of the wind turbine nacelle, confirming that the adapter hook 65 is securely connected to the nacelle hoisting point. During use, the hoisting equipment is started, and this device is slowly lifted to begin hoisting the nacelle. At the moment of hoisting, the hydraulic damper 612 and the spring buffer 613 are subjected to impact force and undergo telescopic movement along the inside of the fixed cylinder 611. The movable rod 614 moves up and down accordingly, absorbing and buffering the impact generated during hoisting. Simultaneously, due to the force change of the adapter component 6, the three balance guide sliders 64 slide on the corresponding three guide rods 54. Through the linkage of the balance rod 63 and the balance guide sliders 64, the attitude of the adapter component 6 is adjusted to ensure the stability of the nacelle during the hoisting process, avoid swaying or tilting, and maintain the uniform speed of the hoisting equipment. By observation, it is ensured that the device and the nacelle remain stable during the movement. When the nacelle moves above the predetermined installation position, the device is slowly lowered until the nacelle is accurately positioned. After confirming that the nacelle is installed and fixed, the hoisting equipment is operated to slowly lift the device, so that the adapter hook 65 is removed from the nacelle hoisting point, and the device is removed from the hoisting structure of the hoisting equipment, completing this hoisting operation.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lifting adapter for hoisting a wind turbine nacelle, comprising lifting lugs (1), characterized in that: The lifting lug (1) has a through hole (2) at the front end, and a reinforcing ring (3) is fixedly sleeved in the through hole (2). A fixing rod (4) is fixedly connected to the lower end of the lifting lug (1). A balance component (5) is fixedly sleeved on the lower part of the outer surface of the fixing rod (4). A transition component (6) is fixedly connected to the lower end of the fixing rod (4). The transition component (6) includes a mounting block (62). A buffer component (61) is fixedly connected to the upper end of the mounting block (62). Three balance rods (63) are fixedly connected to the outer surface of the mounting block (62). A balance guide slider (64) is fixedly connected to the end of each of the three balance rods (63) away from the center of the mounting block (62). A transition hook (65) is fixedly connected to the lower end of the mounting block (62). The upper end of the buffer component (61) is fixedly connected to the lower end of the fixing rod (4).

2. The lifting adapter for wind turbine nacelle hoisting according to claim 1, characterized in that: The buffer assembly (61) includes a fixed cylinder (611), on which a hydraulic damper (612) and a spring buffer (613) are fixedly installed. A movable rod (614) is fixedly installed at the lower end of the hydraulic damper (612) and the lower end of the spring buffer (613). The upper end of the fixed cylinder (611) is fixedly connected to the lower end of the fixed rod (4), and the lower end of the movable rod (614) is fixedly connected to the upper end of the mounting block (62).

3. The lifting adapter for wind turbine nacelle hoisting according to claim 1, characterized in that: The balancing assembly (5) includes a fixed ring (51), and a plurality of connecting rods (52) are fixedly connected to the outer surface of the fixed ring (51). The ends of the plurality of connecting rods (52) away from the center of the fixed ring (51) are fixedly connected to a connecting ring (53). The outer surface of the connecting ring (53) is fixedly connected to three guide rods (54). The lower ends of the three guide rods (54) are all fixedly connected to limit blocks (55). The fixed ring (51) is fixedly sleeved on the fixed rod (4).

4. The lifting adapter for hoisting a wind turbine generator nacelle according to claim 3, characterized in that: Several of the connecting rods (52) are arranged in a circular array around the center of the fixing ring (51), and three of the guide rods (54) are arranged in a circular array around the center of the connecting ring (53).

5. The lifting adapter for wind turbine nacelle hoisting according to claim 1, characterized in that: The three balance guide sliders (64) are respectively movably sleeved on the corresponding three guide rods (54).

6. A hoisting adapter for wind turbine nacelle hoisting according to claim 2, characterized in that: The lower end of the movable rod (614) is movably connected to the lower inner wall of the fixed cylinder (611), and the hydraulic damper (612) is located inside the spring buffer (613) and has a gap with the inner wall of the spring buffer (613).

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