A tooling for changing yaw calipers for wind turbine generator sets

Abstract

This application relates to the field of wind turbine technology and provides a tooling for replacing yaw calipers for wind turbine generator sets. The tooling includes a work frame, a lifting device, and a worktable. The worktable is vertically slidably mounted on the work frame, and the lifting device drives the worktable to slide. A hydraulic cylinder is mounted on the worktable, and a support plate is mounted on the movable piston of the hydraulic cylinder. An adjustment device is provided on the worktable to drive the hydraulic cylinder to slide. This tooling for replacing yaw calipers for wind turbine generator sets allows a single worker to easily disassemble the old caliper and assemble the new one.

Description

Technical Field

[0001] This application relates to the field of wind turbine technology, and in particular to a tooling for replacing yaw calipers for wind turbine generator sets. Background Technology

[0002] The yaw system is a key component of a wind turbine generator. It precisely adjusts the direction of the turbine nacelle according to changes in wind direction, ensuring that the turbine blades are always at the optimal angle of attack, thereby maximizing wind energy capture. The yaw caliper, as an important braking component in the yaw system, plays a crucial role in precise control and stable braking during the turbine's yaw process.

[0003] However, during the long-term operation of wind turbine generators, due to frequent yaw movements and complex operating environments, yaw calipers inevitably experience wear and aging, requiring periodic replacement. This process faces numerous challenges, the most prominent being the difficulty of the replacement operation.

[0004] Wind turbines are typically mounted on tall towers, and the yaw calipers are often positioned above the operator's height. This necessitates additional climbing equipment for caliper installation and removal, limiting operating space and posing safety risks. Furthermore, a single yaw caliper weighs approximately 50 kg, making single-person operation nearly impossible, while multi-person operation requires precise coordination, resulting in a cumbersome and inefficient process. Therefore, a highly efficient, convenient, and safe yaw caliper replacement tool is needed to address the various challenges encountered in current replacement procedures, ensuring stable operation of wind turbines and improving power generation efficiency. Utility Model Content

[0005] To facilitate the replacement of calipers, this application provides a tooling for replacing yaw calipers on wind turbine generator sets.

[0006] The yaw caliper replacement tooling for wind turbine generator sets provided in this application adopts the following technical solution:

[0007] A tooling for changing yaw calipers for wind turbine generator sets includes a work frame, a lifting device, and a worktable. The worktable is vertically slidably mounted on the work frame, and the lifting device is used to drive the worktable to slide. The worktable is equipped with a hydraulic cylinder, and the movable piston of the hydraulic cylinder is equipped with a support platform. The worktable is provided with an adjustment device for driving the hydraulic cylinder to slide.

[0008] By adopting the above technical solution, the worktable can be pre-positioned with the new yaw caliper, and the worktable can be raised to a position below the caliper replacement location using a lifting device. Subsequently, the movable piston of the hydraulic cylinder drives the support platform to rise, forming a stable support for the bottom of the old caliper. Then, the support platform is slowly lowered, thereby safely removing the old caliper and placing it on the worktable.

[0009] The new caliper can then be placed on the support platform and raised to its installation position using the lifting device for easy assembly. Simultaneously, the adjustment mechanism ensures the support platform can be precisely positioned directly beneath the caliper to be removed, thereby improving replacement efficiency and ease of operation.

[0010] Optionally, the adjusting device includes a threaded rod rotatably mounted on the worktable, a guide rod fixed to the worktable, a slide block slidably connected to the threaded rod and the guide rod, and a first motor for driving the threaded rod to rotate, wherein the hydraulic cylinder is mounted on the slide block.

[0011] By employing the aforementioned technical solution, the threaded rod and guide rod work together to ensure the stability of the slide during movement, thereby driving the hydraulic cylinder mounted on the slide to achieve precise position adjustment. This design allows the support platform to be accurately aligned directly beneath the old caliper to be removed, providing reliable support for subsequent disassembly operations while improving the efficiency and safety of the entire replacement process.

[0012] Optionally, the bottom wall of the slide abuts against the worktable.

[0013] By adopting the above technical solution, the contact between the bottom wall of the slide and the worktable can increase the stability of the slide on the worktable, prevent the hydraulic cylinder from shaking during operation, and thus ensure that the support table provides more stable and reliable support for the yaw caliper.

[0014] Optionally, the lifting device includes a first gear, a rack, and a second motor. The rack is vertically mounted on the work frame. The first gear is rotatably mounted on the worktable and meshes with the rack. The second motor is used to drive the first gear to rotate.

[0015] By adopting the above technical solution, the first gear and the rack work together to drive the worktable to move stably up and down. During the rising or falling of the worktable, the meshing action between the first gear and the rack effectively improves the smoothness of the movement and avoids safety hazards caused by shaking or imbalance.

[0016] Optionally, the work frame is provided with a support plate, which is connected to the work frame via a rotating shaft, and the support plate is used to abut against the bottom of the worktable.

[0017] By adopting the above technical solution, the work frame is equipped with a support plate and connected to the work frame through a rotating shaft, so that the support plate can flexibly adjust its angle and abut against the bottom of the worktable; it can provide additional support force for the caliper after the worktable is raised to the position to be installed, thereby enhancing the stability of the overall structure.

[0018] Optionally, the rotating shaft is wrapped with a rubber layer.

[0019] By adopting the above technical solution, the rubber layer wrapped around the rotating shaft can increase the friction between the rotating shaft and the work frame, effectively preventing the support plate from sliding under force, thereby improving the stability of the tooling.

[0020] Optionally, the rotating shaft is provided with a second gear, the second gear having a movable groove for the rotating shaft to pass through; the outer wall of the rotating shaft is provided with a limit strip, and the inner wall of the movable groove has a limit groove for the limit strip to slide; the working frame has a toothed groove, and a spring is provided between the second gear and the support plate, the spring force being used to drive the second gear to be inserted into the toothed groove under normal conditions.

[0021] By adopting the above technical solution, the elastic force of the spring can drive the second gear to be inserted into the tooth groove under normal conditions, thereby realizing the positioning function of the rotating shaft and ensuring the stability of the support plate in the non-operating state.

[0022] The engagement of the limiting strip and the limiting groove prevents relative rotation between the second gear and the rotating shaft, ensuring structural reliability. The design of the movable groove allows the second gear to be flexibly assembled onto the rotating shaft, facilitating installation and disassembly.

[0023] Optionally, the support platform is provided with a plug-in post, which is used to engage with the center bolt hole of the caliper.

[0024] By adopting the above technical solution, the insertion post and the center bolt hole of the caliper are connected, which enables rapid positioning and connection between the support platform and the caliper, improving the accuracy and efficiency of caliper installation and removal during replacement.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The workbench can be pre-positioned with new yaw calipers, and the workbench can be raised to a position below the caliper replacement location using a lifting device; and with the help of hydraulic cylinders, a single worker can easily remove the old caliper and install the new caliper, reducing safety hazards.

[0027] 2. The work frame is equipped with a support plate and connected to the work frame via a rotating shaft, allowing the support plate to be flexibly adjusted in angle and abut against the bottom of the worktable; it can provide additional support force after the worktable is raised to the position where the caliper is to be installed, thereby enhancing the stability of the overall structure. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of Example 1;

[0029] Figure 2 This is a schematic diagram of the adjustment device in Example 1;

[0030] Figure 3 This is a structural schematic diagram of the lifting device in Embodiment 1;

[0031] Figure 4 This is a schematic diagram of the support plate in Example 1;

[0032] Figure 5 This is a partial sectional view of the work frame and rotating shaft in Embodiment 2.

[0033] Explanation of reference numerals in the attached drawings: 1. Work frame; 11. Lifting groove; 12. Gear groove; 13. Caster wheel; 14. Ladder; 2. Lifting device; 21. Rack; 22. First gear; 23. Second motor; 3. Adjusting device; 31. Slide; 32. Threaded rod; 33. Guide rod; 34. First motor; 4. Worktable; 41. First storage platform; 42. Second storage platform; 43. Hydraulic cylinder; 44. Adjustment hole; 45. Support platform; 46. Insertion post; 47. Mounting groove; 5. Support plate; 51. Rotating rod; 52. Rotating shaft; 53. Rubber layer; 54. Limiting groove; 6. Second gear; 61. Movable groove; 62. Limiting strip; 63. Pull rod; 64. Spring. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0035] Example 1:

[0036] This application discloses a tooling for replacing yaw calipers on wind turbine generator sets.

[0037] Reference Figure 1 A tooling for changing yaw calipers for wind turbine generator sets includes a work frame 1, a lifting device 2, an adjusting device 3, and a worktable 4. A ladder 14 is provided on one side of the work frame 1 for workers to climb to the caliper replacement area. Casters 13 are provided at the bottom of the work frame 1 to facilitate sliding and changing the position of the work frame 1.

[0038] Reference Figure 1 and Figure 2 The workbench 4 includes a first shelf 41 and a second shelf 42 installed at the bottom of the first shelf 41. The first shelf 41 is connected to the work frame 1 through a lifting device 2. The lifting device 2 is used to drive the workbench 4 to slide vertically. An adjustment device 3 is provided on the second shelf 42, and the adjustment device 3 is provided with a hydraulic cylinder 43.

[0039] Reference Figure 2In this embodiment, the adjusting device 3 includes a slide 31, a threaded rod 32, a guide rod 33, and a first motor 34. The threaded rod 32 is rotatably mounted on the second platform 42, and the first motor 34 is mounted on the second platform 42 to drive the threaded rod 32 to rotate. The slide 31 is slidably connected to the threaded rod 32 and the guide rod 33, and the lower surface of the slide 31 abuts against the upper surface of the second platform 42 to increase the stability of the slide 31 mounted on the second platform 42. The second hydraulic cylinder 43 is mounted on the slide 31.

[0040] An adjustment hole 44 is provided on the upper surface of the first shelf 41. The extension direction of the adjustment hole 44 is set in the same direction as the sliding direction of the slide block 31. A support platform 45 is provided above the first shelf 41. The movable plug of the hydraulic cylinder 43 passes through the adjustment rod and is fixed to the bottom of the support platform 45.

[0041] The threaded rod 32 and the guide rod 33 work together to ensure that the slide 31 remains stable during movement so that the support table 45 can be accurately aligned with the bottom of the old caliper to be removed. Then, the movable piston of the hydraulic cylinder 43 drives the support table 45 to rise, forming a stable support for the bottom of the old caliper. The worktable 4 is then slowly lowered to safely remove the old caliper and place it on the worktable 4.

[0042] An integrally formed insertion post 46 is formed on the top of the support platform 45. The insertion post 46 is used to insert and mate with the center bolt hole of the caliper. The insertion post 46 enables quick positioning and connection between the support platform 45 and the caliper, improving the accuracy and efficiency of caliper installation and removal during replacement.

[0043] Reference Figure 3 The lifting device 2 includes a rack 21, a first gear 22, and a second motor 23. The work frame 1 has a vertically opened lifting groove 11. The rack 21 is fixed in the lifting groove 11, and the extension direction of the rack 21 is in the same direction as the extension direction of the lifting groove 11. The second platform 42 has an installation groove 47. The first gear 22 is rotatably installed in the installation groove 47 and meshes with the rack 21. The second motor 23 is installed on the first platform 41 and is used to drive the first gear 22 to rotate.

[0044] Reference Figure 4 The work frame 1 is equipped with a support plate 5, which is rotatably connected to the work frame 1 via a rotating shaft 52. The support plate 5 is used to abut against the bottom of the first storage platform 41. In this embodiment, the support plate 5 is provided with a rotating rod 51, which is used to rotate the support plate 5 so that it abuts against the bottom of the first storage platform 41. The support plate 5 can provide support for the workbench 4 and increase the stability of the workbench 4.

[0045] The rotating shaft 52 is covered with a rubber layer 53. The rubber layer 53 can reduce the friction between the work frame 1 and the support plate 5, and prevent the support plate 5 from rotating freely after being supported at the bottom of the first shelf.

[0046] The implementation principle of Embodiment 1 of this application is as follows:

[0047] When replacing a caliper, the work stand 1 is moved below the caliper to be replaced, and one worker is able to hold the work stand 1 to prevent it from moving. The first platform 41 can be pre-placed with the new yaw caliper, and the lifting device 2 is used to raise the work table 4 below the caliper replacement position. Then, another worker climbs up the ladder 14 to the caliper to be replaced, uses a wrench to remove the spring 64 group bolts located in the middle of the old caliper, and then uses the movable plug of the hydraulic cylinder 43 to drive the support platform 45 to rise, so that the insertion post 46 is inserted into the center bolt hole of the caliper and abuts against the bottom of the caliper, forming a stable support for the bottom of the old caliper. Then, the spring 64 group bolts on both sides of the caliper are removed, and the support platform 45 is slowly lowered to safely remove the old caliper and place it on the work table 4.

[0048] The new caliper can then be placed on the support platform 45 and lifted to the installation position using the lifting device 2 for easy assembly. This tooling facilitates the disassembly and installation of the caliper by workers, reducing safety risks.

[0049] Example 2:

[0050] This application discloses a tooling for replacing yaw calipers on wind turbine generator sets.

[0051] Reference Figure 5 The difference between Embodiment 2 and Embodiment 1 is that: the rotating shaft 52 is provided with a second gear 6, and the second gear 6 has an active groove 61 for the rotating shaft 52 to pass through; a pull rod 63 is provided on one side of the second gear 6 to facilitate moving the position of the second gear 6.

[0052] The inner wall of the movable groove 61 is provided with a limiting strip 62, and the outer wall of the rotating shaft 52 is provided with a limiting groove 54 for the limiting strip 62 to slide. The work frame 1 is provided with a toothed groove 12, and a spring 64 is provided between the second gear 6 and the support plate 5. The elastic force of the spring 64 is used to drive the second gear 6 to be inserted into the toothed groove 12 under normal conditions.

[0053] The implementation principle of Embodiment 2 of this application is as follows:

[0054] The cooperation between the limiting strip 62 and the limiting groove 54 can prevent the second gear 6 from rotating relative to the rotating shaft 52. This allows the second gear 6 to be inserted into the tooth groove 12 under the elastic force of the spring 64, thus fixing the rotating shaft 52 and preventing the support plate 5 from rotating freely.

[0055] When it is necessary to rotate the support plate 5, the second gear 6 is disengaged from the tooth groove 12 by the pull rod 63, so that the support plate 5 can be rotated to abut against the bottom of the first shelf 41.

[0056] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wind turbine yaw caliper replacement tool, characterized by: The device includes a work frame (1), a lifting device (2), and a worktable (4). The worktable (4) is vertically slidably mounted on the work frame (1). The lifting device (2) is used to drive the worktable (4) to slide. The worktable (4) is equipped with a hydraulic cylinder (43). The movable piston of the hydraulic cylinder (43) is equipped with a support platform (45). The worktable (4) is provided with an adjustment device (3) for driving the hydraulic cylinder (43) to slide.

2. The yaw caliper replacement tooling for wind turbine generator sets according to claim 1, characterized in that: The adjusting device (3) includes a threaded rod (32) rotatably mounted on the workbench (4), a guide rod (33) fixed to the workbench (4), a slide block (31) slidably connected to the threaded rod (32) and the guide rod (33), and a first motor (34) for driving the threaded rod (32) to rotate. The hydraulic cylinder (43) is mounted on the slide block (31).

3. The yaw caliper replacement tooling for wind turbine generator sets according to claim 2, characterized in that: The bottom wall of the slide (31) abuts against the worktable (4).

4. The yaw caliper replacement tooling for wind turbine generator sets according to claim 1, characterized in that: The lifting device (2) includes a first gear (22), a rack (21) and a second motor (23). The rack (21) is vertically mounted on the work frame (1). The first gear (22) is rotatably mounted on the worktable (4) and meshes with the rack (21). The second motor (23) is used to drive the first gear (22) to rotate.

5. The yaw caliper replacement tooling for wind turbine generator sets according to claim 1, characterized in that: The work frame (1) is provided with a support plate (5), which is connected to the work frame (1) via a rotating shaft (52). The support plate (5) is used to abut against the bottom of the workbench (4).

6. The yaw caliper replacement tooling for wind turbine generator sets according to claim 5, characterized in that: The rotating shaft (52) is wrapped with a rubber layer (53).

7. The yaw caliper replacement tooling for wind turbine generator sets according to claim 5, characterized in that: The rotating shaft (52) is provided with a second gear (6), and the second gear (6) has a movable groove (61) through which the rotating shaft (52) passes; the inner wall of the movable groove (61) is provided with a limiting strip (62), and the outer wall of the rotating shaft (52) is provided with a limiting groove (54) for the limiting strip (62) to slide; the work frame (1) has a toothed groove (12), and a spring (64) is provided between the second gear (6) and the support plate (5), and the elastic force of the spring (64) is used to drive the second gear (6) to be inserted into the toothed groove (12) under normal conditions.

8. The yaw caliper replacement tooling for wind turbine generator sets according to claim 1, characterized in that: The support platform (45) is provided with a plug-in post (46), which is used to plug into the center bolt hole of the caliper.

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