Multi-station positioning and clamping structure for wind power hub machining

Abstract

The utility model discloses a kind of multi-station positioning clamping structures for wind power hub processing, it is related to wind power hub processing technical field, including multi-station switching mechanism, the multi-station switching mechanism includes installation platform, the top of installation platform is fixedly connected with rotating ring, the top of rotating ring is rotatably connected with rotating table.The utility model is by relying on multi-station switching mechanism, motor drives second gear, first gear transmission, drives rotating shaft and rotating table along rotating ring stable rotation, can be switched to multi-station synchronously, process switching does not need to disassemble hub and re-clamping, greatly shorten switching time consumption, batch processing efficiency is higher;Wind power hub rest platform bottom is equipped with ball, the sliding friction of when pushing can be converted into rolling friction, reduce friction loss, while circumferential distribution reset spring can buffer impact force in pushing process, avoid the violent friction caused by the weight of hub, effectively protect hub bottom integrity, prevent the influence of subsequent processing due to bottom damage.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine hub processing technology, specifically to a multi-station positioning and clamping structure for wind turbine hub processing. Background Technology

[0002] Traditional wind turbine hub clamping structures are widely used in the wind power equipment manufacturing field, mainly for milling, drilling, and grinding processes of wind turbine hubs. Their core function is to position and clamp large, heavy wind turbine hubs using tooling, preventing workpiece displacement during processing, ensuring dimensional accuracy, and replacing manual clamping, reducing manpower input. They meet the basic fixing requirements in mass production of wind turbine hubs and are key auxiliary equipment in wind turbine hub manufacturing production lines.

[0003] When mass-producing wind turbine hubs and requiring multiple processes, traditional equipment is mostly designed for single-station operation. Changing processes requires disassembling and re-clamping the hub, which is time-consuming. At the same time, during clamping, the circumferentially distributed clamps push the wind turbine hub to the center of the placement platform. During the pushing process, due to the large weight of the wind turbine hub, it causes severe friction with the placement platform, damaging the bottom of the wind turbine hub and affecting subsequent processing. Utility Model Content

[0004] This utility model provides a multi-station positioning and clamping structure for wind turbine hub processing to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A multi-station positioning and clamping structure for wind turbine hub processing includes a multi-station switching mechanism, wherein the multi-station switching mechanism includes a mounting platform, a rotating ring is fixedly connected to the top of the mounting platform, a rotating table is rotatably connected to the top of the rotating ring, and a rotating shaft is fixedly connected to the top of the inner cavity of the rotating table; and a wind turbine hub clamping mechanism, wherein the wind turbine hub clamping mechanism includes a fixed platform, the bottom of the fixed platform being fixedly connected to the top of the rotating table.

[0006] A further improvement of the present invention is that the multi-station switching mechanism further includes a first gear, the interior of which is fixedly connected to the surface of the rotating shaft.

[0007] A further improvement of this utility model is that: a second gear meshes with the surface of the first gear, a mounting plate is fixedly connected to the inner wall of the mounting platform, and a motor is fixedly connected to the top of the mounting plate.

[0008] A further improvement of this utility model is that the top of the motor shaft is fixedly connected to the bottom of the second gear, and the lower end of the rotating shaft is rotatably connected to the top of the mounting platform.

[0009] A further improvement of this utility model is that the wind turbine hub clamping mechanism further includes a return spring, one end of which is fixedly connected to the inner wall of the fixed platform.

[0010] A further improvement of this utility model is that: the other end of the reset spring is fixedly connected to a wind turbine hub placement platform, and the bottom of the wind turbine hub placement platform is provided with ball bearings.

[0011] A further improvement of this utility model is that: the bottom of the ball is slidably connected to the top of the rotating platform; multiple sets of the return springs are arranged in a circumferential array along the wind turbine hub placement platform; and the top of the wind turbine hub placement platform is connected to the wind turbine hub.

[0012] A further improvement of this utility model is that: a fixing member is fixedly connected to the top of the fixing platform, an electric telescopic rod is provided inside the fixing member, a clamping plate is fixedly connected to the output end of the electric telescopic rod, the surface of the clamping plate overlaps with the surface of the wind turbine hub, and multiple sets of electric telescopic rods are arranged along the circumference of the fixing platform.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: This utility model provides a multi-station positioning and clamping structure for wind turbine hub processing. By relying on a multi-station switching mechanism, the motor drives the second gear and the first gear to drive the rotating shaft and the rotating table to rotate stably along the rotating ring. Multiple stations can be switched synchronously, and the process switching does not require disassembling the hub and re-clamping, which greatly shortens the switching time and improves the efficiency of batch processing. The bottom of the wind turbine hub placement table is equipped with ball bearings, which can convert the sliding friction during pushing into rolling friction, reducing friction loss. At the same time, the circumferentially distributed return springs can buffer the impact force during pushing, avoid the severe friction caused by the heavy weight of the hub, effectively protect the integrity of the bottom of the hub, and prevent the bottom damage from affecting subsequent processing. It takes into account both positioning accuracy and surface protection, and reduces the workpiece scrap rate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of this utility model; Figure 4 This is a top view schematic diagram of the exploded structure of this utility model; Figure 5 This is a schematic diagram of the wind turbine hub clamping mechanism of this utility model; Figure 6 This is a bottom view schematic diagram of the wind turbine hub clamping mechanism of this utility model.

[0015] In the diagram: 11. Mounting platform; 12. Rotating ring; 13. Rotating platform; 14. Rotating shaft; 15. First gear; 16. Second gear; 17. Motor; 21. Fixing platform; 22. Return spring; 23. Wind turbine hub placement platform; 24. Ball bearing; 25. Wind turbine hub; 26. Fixing component; 27. Electric telescopic rod; 28. Clamping plate. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to embodiments: Example 1, as Figures 1-6 As shown, this utility model provides a multi-station positioning and clamping structure for wind turbine hub processing, including a multi-station switching mechanism. The multi-station switching mechanism includes a mounting platform 11, a rotating ring 12 fixedly connected to the top of the mounting platform 11, a rotating table 13 rotatably connected to the top of the rotating ring 12, and a rotating shaft 14 fixedly connected to the top of the inner cavity of the rotating table 13; and a wind turbine hub clamping mechanism, including a fixed platform 21, the bottom of the fixed platform 21 being fixedly connected to the top of the rotating table 13.

[0017] In this embodiment, the fixed platform 21 moves synchronously with the rotating platform 13 to place the wind turbine hub 25 on the top of the wind turbine hub placement platform 23. Then, multiple sets of electric telescopic rods 27 in the top fixing member 26 of the fixed platform 21 extend synchronously, driving the clamping plate 28 to fit against the surface of the hub to complete the clamping. When the axially distributed clamping plate 28 pushes the wind turbine hub 25 to the center, the ball bearings 24 roll on the top of the rotating platform 13, changing the sliding of the wind turbine hub 25 relative to the placement platform 23 to the rolling of the ball bearings 24, so that the bottom of the wind turbine hub 25 will not be damaged by friction when it is pushed to the center of the clamping plate 28.

[0018] Example 2, as Figures 1-6 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the multi-station switching mechanism further includes a first gear 15, the interior of the first gear 15 is fixedly connected to the surface of the rotating shaft 14, the surface of the first gear 15 is meshed with a second gear 16, the inner wall of the mounting platform 11 is fixedly connected to a mounting plate, the top of the mounting plate is fixedly connected to a motor 17, the top of the rotating shaft of the motor 17 is fixedly connected to the bottom of the second gear 16, and the lower end of the rotating shaft 14 is rotatably connected to the top of the mounting platform 11.

[0019] In this embodiment, when the wind turbine hub placement platform 23 moves, it causes the return spring 22 to stretch or contract. During processing, when switching between multiple workstations, the motor 17 fixed on the mounting plate on the inner wall of the mounting platform 11 starts, and its rotating shaft drives the second gear 16 fixed at the top to rotate. The second gear 16 meshes with the first gear 15, causing the first gear 15 to drive the internally fixed rotating shaft 14 to rotate synchronously. The lower end of the rotating shaft 14 is rotatably connected to the top of the mounting platform 11, and the upper end is fixed to the top of the inner cavity of the rotating platform 13, thereby driving the rotating platform 13 to rotate stably along the rotating ring 12 fixed at the top of the mounting platform 11.

[0020] Example 3, as Figures 1-6 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the wind turbine hub clamping mechanism further includes a return spring 22. One end of the return spring 22 is fixedly connected to the inner wall of the fixed platform 21, and the other end of the return spring 22 is fixedly connected to the wind turbine hub placement platform 23. A ball bearing 24 is provided at the bottom of the wind turbine hub placement platform 23, and the bottom of the ball bearing 24 is slidably connected to the top of the rotating platform 13. Multiple sets of return springs 22 are arranged in a circumferential array along the wind turbine hub placement platform 23. A wind turbine hub 25 overlaps the top of the wind turbine hub placement platform 23. A fixing member 26 is fixedly connected to the top of the fixed platform 21. An electric telescopic rod 27 is provided inside the fixing member 26. A clamping plate 28 is fixedly connected to the output end of the electric telescopic rod 27. The surface of the clamping plate 28 overlaps with the surface of the wind turbine hub 25. Multiple sets of electric telescopic rods 27 are arranged in a circumferential array along the fixed platform 21.

[0021] In this embodiment, when the wind turbine hub placement platform 23 moves, it drives the return spring 22 to stretch or contract. During processing, when switching between multiple workstations, the motor 17 fixed on the mounting plate on the inner wall of the mounting platform 11 starts, and its rotating shaft drives the second gear 16 fixed at the top to rotate. The second gear 16 meshes with the first gear 15, causing the first gear 15 to drive the internally fixed rotating shaft 14 to rotate synchronously. The lower end of the rotating shaft 14 is rotatably connected to the top of the mounting platform 11, and the upper end is fixed to the top of the inner cavity of the rotating platform 13. This causes the rotating platform 13 to rotate stably along the rotating ring 12 fixed at the top of the mounting platform 11. The rotating platform 13 drives the clamped hub to switch between workstations such as clamping, milling, drilling, and inspection without repeated disassembly and clamping, achieving continuous and efficient processing. After processing is completed, the electric telescopic rod 27 retracts, and after the wind turbine hub 25 is removed, the wind turbine hub placement platform 23 is reset under the action of the return spring 22.

[0022] The working principle of the multi-station positioning and clamping structure for wind turbine hub processing will be explained in detail below.

[0023] like Figures 1-6As shown, the fixed platform 21 moves synchronously with the rotating platform 13, placing the wind turbine hub 25 on top of the wind turbine hub placement platform 23. Then, multiple sets of electric telescopic rods 27 within the top fixing member 26 of the fixed platform 21 extend synchronously, causing the clamping plate 28 to clamp against the hub surface. When the axially distributed clamping plate 28 pushes the wind turbine hub 25 to the center, the balls 24 roll on the top of the rotating platform 13, changing the sliding of the wind turbine hub 25 relative to the placement platform 23 to the rolling of the balls 24. This prevents the bottom of the wind turbine hub 25 from being damaged by friction when pushed to the center of the clamping plate 28. Simultaneously, when the wind turbine hub placement platform 23 moves, it causes the return spring 22 to stretch or contract. During processing, when switching between multiple workstations, it is fixed to the mounting platform 11. After the motor 17 on the inner wall mounting plate is started, its shaft drives the second gear 16 fixed at the top to rotate. The second gear 16 meshes with the first gear 15, causing the first gear 15 to drive the internally fixed rotating shaft 14 to rotate synchronously. The lower end of the rotating shaft 14 is rotatably connected to the top of the mounting platform 11, and the upper end is fixed to the top of the inner cavity of the rotating platform 13. This causes the rotating platform 13 to rotate stably along the rotating ring 12 fixed at the top of the mounting platform 11. The rotating platform 13 drives the clamped hub to switch between clamping, milling, drilling, and inspection stations without repeated disassembly and clamping, achieving continuous and efficient processing. After processing is completed, the electric telescopic rod 27 retracts, and after the wind turbine hub 25 is removed, the wind turbine hub placement platform 23 is reset under the action of the return spring 22.

[0024] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A multi-station positioning and clamping structure for wind turbine hub processing, characterized in that: include A multi-station switching mechanism includes a mounting platform (11), a rotating ring (12) is fixedly connected to the top of the mounting platform (11), a rotating table (13) is rotatably connected to the top of the rotating ring (12), and a rotating shaft (14) is fixedly connected to the top of the inner cavity of the rotating table (13). The wind turbine hub clamping mechanism includes a fixed platform (21), the bottom of which is fixedly connected to the top of a rotating platform (13).

2. The multi-station positioning and clamping structure for wind turbine hub processing according to claim 1, characterized in that: The multi-station switching mechanism also includes a first gear (15), the interior of which is fixedly connected to the surface of the rotating shaft (14).

3. The multi-station positioning and clamping structure for wind turbine hub processing according to claim 2, characterized in that: The surface of the first gear (15) is meshed with the second gear (16), the inner wall of the mounting platform (11) is fixedly connected with a mounting plate, and the top of the mounting plate is fixedly connected with a motor (17).

4. The multi-station positioning and clamping structure for wind turbine hub processing according to claim 3, characterized in that: The top of the motor (17) shaft is fixedly connected to the bottom of the second gear (16), and the lower end of the rotating shaft (14) is rotatably connected to the top of the mounting platform (11).

5. The multi-station positioning and clamping structure for wind turbine hub processing according to claim 1, characterized in that: The wind turbine hub clamping mechanism also includes a return spring (22), one end of which is fixedly connected to the inner wall of the fixed platform (21).

6. The multi-station positioning and clamping structure for wind turbine hub processing according to claim 5, characterized in that: The other end of the return spring (22) is fixedly connected to a wind turbine hub placement platform (23), and a ball bearing (24) is provided at the bottom of the wind turbine hub placement platform (23).

7. The multi-station positioning and clamping structure for wind turbine hub processing according to claim 6, characterized in that: The bottom of the ball (24) is slidably connected to the top of the rotating platform (13), and multiple sets of the reset spring (22) are arranged in a circumferential array along the wind turbine hub placement platform (23). The top of the wind turbine hub placement platform (23) is connected to the wind turbine hub (25).

8. The multi-station positioning and clamping structure for wind turbine hub processing according to claim 7, characterized in that: The top of the fixed platform (21) is fixedly connected to a fixing member (26), and an electric telescopic rod (27) is provided inside the fixing member (26). The output end of the electric telescopic rod (27) is fixedly connected to a clamping plate (28). The surface of the clamping plate (28) overlaps with the surface of the wind turbine hub (25). Multiple sets of electric telescopic rods (27) are arranged along the circumference of the fixed platform (21).

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