Turnover device for large wind power rotor bracket

Abstract

The utility model belongs to the technical field of wind power manufacturing equipment, and discloses a large wind power rotor support turnover device which comprises an equal-height plate, a rotor support body is arranged on the upper surface of the equal-height plate, and a plurality of equal-height blocks distributed at equal intervals are arranged on the outer side of the rotor support body. A plurality of outer hoops and two inner hoops are jointly arranged on the outer sides of the equal-height blocks, the inner sides of the outer hoops and the inner hoops are attached to the rotor support body, a plurality of lifting lugs are fixedly arranged on the outer sides of the inner hoops, an adjusting base plate is jointly arranged on one sides of the outer hoops and one sides of the inner hoops, and a fixing bolt is jointly arranged on one sides of every two outer hoops. The rotor support can be effectively prevented from axially moving through the hoop body and the assembly limiting device, the acting point of the lifting hook is arranged on the hoop in the overturning process, it is guaranteed that the rotor support is not affected by external force in the overturning process, products are prevented and controlled not to deform, and the size precision of the products is guaranteed and controlled.

Description

Technical Field

[0001] This utility model belongs to the field of wind power manufacturing equipment technology, specifically a large wind turbine rotor support turning device. Background Technology

[0002] The large wind turbine rotor support flipping device is applicable to wind power equipment manufacturing, installation, and maintenance scenarios. It plays a crucial role when large wind turbine rotor supports need to be flipped. For example, in wind power equipment manufacturing plants, after the rotor support is processed, it undergoes quality inspection. This flipping device can be used to flip the rotor support to different angles, facilitating a comprehensive inspection of all parts. During wind turbine installation in wind farms, the device ensures a smooth and safe flipping process, allowing the rotor support to be flipped from its transport state to the required installation position. In later maintenance of wind turbines, if the rotor support needs to be inspected or parts replaced, this flipping device also helps workers easily flip the rotor support, improving work efficiency and safety.

[0003] However, the following problems were found in the implementation of the relevant technologies:

[0004] In existing technologies, large wind turbine rotor supports still lack effective axial limiting measures during the overturning operation. The rotor support is prone to axial movement during overturning, which not only causes additional stress on the rotor support during the overturning process, but may also cause it to collide with other components, resulting in local damage to the rotor support. Moreover, the previous unreasonable setting of the hook force point caused the rotor support to be subjected to uneven external forces during the overturning process. This uneven external force is very likely to deform the rotor support, thereby affecting the dimensional accuracy of the product. Once the dimensional accuracy of the product cannot be guaranteed, it will bring great difficulties to the subsequent assembly of wind power equipment, which may lead to problems such as loose assembly and unstable operation, reducing the performance and reliability of the entire wind power equipment. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a large wind turbine rotor support turning device, which effectively prevents axial movement of the rotor support and places the hook's force point on the clamp. This invention, through the clamp body and the assembly of a limiting device, effectively prevents axial movement of the rotor support, ensures that the rotor support is not subjected to external forces during the turning process, prevents and controls product deformation, and guarantees and controls product dimensional accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a large wind turbine rotor support turning device, including a leveling plate, a rotor support body on the upper surface of the leveling plate, a plurality of leveling blocks evenly distributed on the outer side of the rotor support body, a plurality of outer clamps and two inner clamps on the outer side of the plurality of leveling blocks, the inner sides of the outer clamps and inner clamps being in contact with the rotor support body, a plurality of lifting lugs fixed on the outer side of the inner clamps, and an adjusting pad on one side of the outer clamps and inner clamps.

[0007] Preferably, a fixing bolt is provided on one side of each pair of outer clamps, and a fixing nut is fitted on the outer thread of the fixing bolt.

[0008] Preferably, the upper and lower ends of the rotor support body are provided with multiple limiting blocks arranged in a ring.

[0009] Preferably, a lifting hole is provided on one side of the lifting lug.

[0010] Preferably, both the outer clamp and the inner clamp are arc-shaped clamps.

[0011] Preferably, a positioning bolt is provided on the outer side of the limiting block, and the positioning bolt is fixedly engaged with the outer clamp.

[0012] Preferably, a retaining washer is fitted on the outside of the retaining bolt.

[0013] Preferably, a positioning washer is fitted on the outside of the positioning bolt.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model can effectively prevent the rotor support from axial movement by assembling a clamp body and a limiting device. During the turning process, the hook force point is set on the clamp to ensure that the rotor support is not subjected to external force during the turning process, prevent and control the product from deforming, and ensure and control the product dimensional accuracy. Attached Figure Description

[0016] Figure 1 This is a top view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning bolt structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the equal-height block structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixing bolt structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the lifting lug structure of this utility model.

[0021] In the diagram: 1. Inner clamp; 2. Outer clamp; 3. Limiting block; 4. Positioning bolt; 5. Positioning washer; 6. Fixing bolt; 7. Fixing washer; 8. Fixing nut; 9. Adjusting shim; 10. Lifting lug; 11. Lifting hole; 20. Rotor support body; 21. Elevation plate; 22. Elevation block. Detailed Implementation

[0022] 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.

[0023] like Figures 1 to 5As shown, this utility model provides a large wind turbine rotor support turning device, including a leveling plate 21. A rotor support body 20 is provided on the upper surface of the leveling plate 21. Multiple leveling blocks 22 are evenly distributed on the outer side of the rotor support body 20. Multiple outer clamps 2 and two inner clamps 1 are provided on the outer sides of the multiple leveling blocks 22. The inner sides of the outer clamps 2 and inner clamps 1 are in contact with the rotor support body 20. Multiple lifting lugs 10 are fixed on the outer side of the inner clamps 1. An adjusting pad 9 is provided on one side of the outer clamps 2 and inner clamps 1. A crane lifts the rotor support body 20 and places it flat on the leveling plate 21. Multiple height blocks 22 are evenly arranged around the outer circumference of the rotor support body 20. Two inner clamps 1 and multiple outer clamps 2 are symmetrically arranged on the height blocks 22 around the outer circumference of the rotor support body 20. The inner walls of the inner clamps 1 and outer clamps 2 are tightly attached to the outer wall of the magnetic yoke of the rotor support body 20. Adjacent outer clamps 2 are connected and secured with fixing bolts 6, fixing washers 7, and fixing nuts 8. Adjusting shims 9 of appropriate thickness are inserted between adjacent inner clamps 1 and outer clamps 2 to control the gap between the clamps and the rotor support body 20, typically 0--2mm. These are then connected and secured with fixing bolts 6, fixing washers 7, and fixing nuts 8. Finally, multiple limiting blocks 3 are symmetrically installed at both ends of the rotor support body 20, with adjacent outer clamps 2 at equal intervals. The limiting blocks 3 are installed on the outer clamps 2 using positioning bolts 4 and positioning washers 5. The gap between the limiting blocks and the rotor support body 20 is adjusted and controlled through the elongated holes on the limiting blocks 3. The double-hook bridge crane uses lifting tools to apply force to the lifting lugs 10 of the inner clamp 1. After both hooks slowly rise to a certain height, one hook slowly rises while the other hook slowly descends. Once the lower hook is no longer under force, it is removed. The rotor support body 20 is rotated 180° and the lower hook is reattached to the lifting lugs 10 of the inner clamp 1. At this time, the lower hook slowly rises while the higher hook slowly descends. Once the two hooks are aligned, the rotor support body 20 is placed flat on the level plate 21. Finally, the positioning bolts 4 and fixing bolts 6 are loosened, and the limit blocks 3, inner clamp 1, and outer clamp 2 are removed, completing the overturning of the rotor support body 20.

[0024] Specifically, each pair of outer clamps 2 has a common fixing bolt 6 on one side, and a fixing nut 8 is threaded onto the outer side of the fixing bolt 6. Through the tight fit of the fixing bolt 6 and the fixing nut 8, adjacent outer clamps 2 can be firmly connected together to form a stable overall structure. During the overturning operation of the large wind turbine rotor support overturning device, the outer clamps 2 need to withstand significant external forces and torques. This connection method provides sufficient strength and stability, effectively preventing the outer clamps 2 from loosening or separating during the overturning process, ensuring the safe and reliable operation of the entire device, and avoiding failure or damage to the rotor support body 20 due to loose connection of the outer clamps 2. This greatly improves the reliability and safety of the overturning operation.

[0025] Furthermore, multiple ring-shaped limiting blocks 3 are provided at both the upper and lower ends of the rotor support body 20. These limiting blocks 3 strictly restrict the axial movement of the rotor support body 20 during the turning process. During the turning operation, the rotor support body 20 may be subjected to axial external forces and experience movement. The limiting blocks 3 effectively prevent this movement, ensuring the stability of the rotor support body 20's position. This helps ensure that the rotor support body 20 is not subjected to additional axial stress during the turning process, reducing the possibility of deformation, improving the dimensional accuracy and quality of the product, and also facilitating subsequent wind power equipment assembly work, ensuring the smooth progress of the assembly process.

[0026] Furthermore, a lifting hole 11 is provided on one side of the lifting lug 10. The lifting hole 11 provides a standard and reliable connection point for the lifting equipment. During the overturning operation of the large wind turbine rotor support overturning device, the lifting equipment can connect to the lifting lug 10 through the lifting hole 11 to smoothly lift and overturn the rotor support body 20. The existence of the lifting hole 11 makes the lifting process more convenient and faster, and can ensure the uniform distribution of lifting force, avoiding deformation or damage to the rotor support body 20 due to uneven force caused by unreasonable lifting points, thus improving the safety and efficiency of the overturning operation and ensuring the smooth progress of the entire overturning process.

[0027] It is worth noting that both the outer clamp 2 and the inner clamp 1 are arc-shaped clamps. The arc-shaped clamps can better conform to the shape of the rotor support body 20, greatly increasing the contact area between the clamps and the rotor support body 20, thereby improving the clamping force and stability of the clamps on the rotor support body 20. During the turning process, the arc-shaped clamps can evenly distribute external forces, reducing local stress concentration and lowering the risk of deformation or damage to the rotor support body 20.

[0028] It is worth noting that a positioning bolt 4 is provided on the outer side of the limiting block 3, and the positioning bolt 4 is fixedly engaged with the outer clamp 2. The positioning bolt 4 can accurately fix the limiting block 3 on the outer clamp 2, ensuring the stability of the position of the limiting block 3. During the use of the device, the limiting block 3 is used to restrict the axial movement of the rotor support body 20. The fixing effect of the positioning bolt 4 can ensure that the limiting block 3 will not be displaced when subjected to external force, thereby accurately controlling the axial position of the rotor support body 20, improving the limiting effect of the limiting block 3, further enhancing the stability and reliability of the entire device during the turning process, and effectively protecting the rotor support body 20 from damage.

[0029] It is worth mentioning that a fixing washer 7 is fitted on the outer side of the fixing bolt 6. The fixing washer 7 increases the contact area between the fixing bolt 6 and the connecting parts, disperses the pressure of the bolt head and nut on the connecting parts, and prevents the bolt head and nut from damaging the surface of the connecting parts during tightening. At the same time, the fixing washer 7 also plays a role in preventing loosening, reducing the possibility of the fixing bolt 6 loosening under vibration or stress, improving the reliability and stability of the fixing bolt 6 connection, ensuring a firm connection between the outer clamps 2, and ensuring that the entire large wind turbine rotor support turning device can operate normally under long-term, high-load working conditions, thus extending the service life of the device.

[0030] It is worth emphasizing that a positioning washer 5 is fitted on the outer side of the positioning bolt 4. The positioning washer 5 increases the friction between the positioning bolt 4 and the limiting block 3 and the outer clamp 2, improving the fixing effect of the positioning bolt 4. During the use of the device, the positioning washer 5 can prevent the positioning bolt 4 from loosening due to vibration or external force, ensuring that the position of the limiting block 3 remains stable at all times. This helps to accurately control the axial position of the rotor support body 20, improve the limiting accuracy of the limiting block 3, further enhance the stability and reliability of the entire device during the overturning process, and ensure that the large wind turbine rotor support overturning device can safely and accurately complete the overturning operation.

[0031] Working principle: The overhead crane lifts the rotor support body 20 and places it flat on the leveling plate 21. Multiple leveling blocks 22 are evenly arranged around the outer circle of the rotor support body 20. Then, two inner clamps 1 and multiple outer clamps 2 are symmetrically arranged on the leveling blocks 22 around the outer circle of the rotor support body 20. The inner walls of the inner clamps 1 and outer clamps 2 are tightly attached to the outer wall of the magnetic yoke of the rotor support body 20. Adjacent outer clamps 2 are connected and tightened by fixing bolts 6, fixing washers 7, and fixing nuts 8. Adjusting shims 9 of appropriate thickness are inserted between adjacent inner clamps 1 and outer clamps 2 to control the gap between the clamps and the rotor support body 20. The gap is usually 0--2mm. Then, they are connected and tightened by fixing bolts 6, fixing washers 7, and fixing nuts 8. Finally, multiple limiting blocks 3 are symmetrically installed at both ends of the rotor support body 20 and at equal intervals between adjacent outer clamps 2. The limiting blocks 3 are installed on the outer clamps 2 by positioning bolts 4 and positioning washers 5. The gap between the blocks and the rotor support body 20 is adjusted and controlled by the elongated holes on the limiting blocks 3. The double-hook bridge crane applies force to the lifting lugs 10 of the inner clamp 1 through the lifting tools. After the two hooks rise slowly to a certain height, one hook slowly rises and the other hook slowly falls. After the lower hook is no longer under force, the lower hook is removed. The rotor support body 20 is rotated 180° and the lower hook is reattached to the lifting lugs 10 of the inner clamp 1. At this time, the lower hook slowly rises and the higher hook slowly falls. After the two hooks are aligned, the rotor support body 20 is placed flat on the level plate 21. Finally, the positioning bolts 4 and fixing bolts 6 are loosened, and the limiting blocks 3, inner clamps 1, and outer clamps 2 are removed to complete the overturning of the rotor support body 20.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large wind turbine rotor support turning device, comprising a contour plate (21), characterized in that: The upper surface of the contour plate (21) is provided with a rotor support body (20). The outer side of the rotor support body (20) is provided with multiple contour blocks (22) distributed at equal intervals. The outer side of the multiple contour blocks (22) is provided with multiple outer clamps (2) and two inner clamps (1). The inner sides of the outer clamps (2) and the inner clamps (1) are in contact with the rotor support body (20). The outer side of the inner clamps (1) is fixedly provided with multiple lifting lugs (10). The outer clamps (2) and the inner clamps (1) are provided with an adjustment pad (9) on one side.

2. The large wind turbine rotor support turning device according to claim 1, characterized in that: Each pair of outer clamps (2) is provided with a fixing bolt (6) on one side, and a fixing nut (8) is threaded on the outer side of the fixing bolt (6).

3. The large wind turbine rotor support turning device according to claim 1, characterized in that: The rotor support body (20) is provided with multiple limit blocks (3) arranged in a ring at both the upper and lower ends.

4. The large wind turbine rotor support turning device according to claim 1, characterized in that: A lifting hole (11) is provided on one side of the lifting lug (10).

5. A large wind turbine rotor support turning device according to claim 1, characterized in that: Both the outer clamp (2) and the inner clamp (1) are arc-shaped clamps.

6. A large wind turbine rotor support turning device according to claim 3, characterized in that: The limiting block (3) is provided with a positioning bolt (4) on its outer side, and the positioning bolt (4) is fixedly engaged with the outer clamp (2).

7. A large wind turbine rotor support turning device according to claim 2, characterized in that: A fixing washer (7) is fitted on the outside of the fixing bolt (6).

8. A large wind turbine rotor support turning device according to claim 6, characterized in that: A positioning washer (5) is fitted on the outside of the positioning bolt (4).

Images