Transfer mechanism for blades of wind driven generator

By using a lead screw motor to drive the extension frame and support plate to adjust the blade support position, the problem of inflexible blade length adjustment in the existing technology is solved, and the adaptability and stability of the wind turbine blade transfer mechanism are improved.

CN224079258UActive Publication Date: 2026-04-03TIANJIN MINGYANG WIND TURBINE ROTOR BLADE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing wind turbine blade transfer mechanisms, the spacing of the electro-hydraulic lifting cylinders is fixed, making it impossible to adjust the support position according to the blade length, resulting in insufficient equipment adaptability and stability.

Method used

The screw is driven by a screw motor to rotate, which in turn drives the extension frame and blade support carriage to adjust their positions. The support plate supports the tail of the wind turbine, enabling flexible adjustment of the support position and increasing the adaptability and stability of the equipment.

Benefits of technology

This allows for adjustment of the support position based on the actual length of the fan blades, improving the adaptability and stability of the equipment, avoiding deformation and jamming due to unilateral stress, and ensuring the stability and safety of the transfer process.

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Abstract

A wind driven generator blade transfer mechanism comprises a transfer trolley, a double-thread rod, a screw motor, a guide rod, a supporting plate, a supporting wheel, a tail clamping seat, a clamping seat internal thread cylinder and a clamping plate screw seat, a transfer trolley inner cavity is formed in the transfer trolley, a lead screw groove is formed in the transfer trolley inner cavity and matched with a lead screw, the lead screw groove is connected with the lead screw, and the double-thread rod is connected with the lead screw motor. The rear portion of the transfer trolley is fixedly connected with a lead screw motor, an output shaft of the lead screw motor is fixedly connected with the lead screw, an extension frame slides in an inner cavity of the transfer trolley, the lower portion of the extension frame is fixedly connected with an inner threaded cylinder, the inner threaded cylinder is in threaded connection with the interior of the lead screw, and a supporting rod sliding groove is formed in the side portion of the transfer trolley. The side portion of the extension frame is fixedly connected with the supporting rod, the supporting rod sliding groove is matched with the supporting rod, and the supporting rod sliding groove is connected with the supporting rod.
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Description

Technical Field

[0001] This utility model relates to the field of wind turbine blades, and in particular to a wind turbine blade transfer mechanism. Background Technology

[0002] An existing patent (publication number: CN215486381U) discloses a wind turbine blade transfer mechanism. It includes an "I"-shaped transfer bracket, a dragging plate at the left end of the "I"-shaped transfer bracket with dragging holes, and several support plates below the "I"-shaped transfer bracket, on which transfer hubs are mounted. The "I"-shaped transfer bracket is equipped with a first blade root limiting device, a second blade root limiting device, and a blade neck / tip limiting device, arranged sequentially from left to right. However, this device, which includes "a first electro-hydraulic lifting cylinder on the first supporting column," relies on multiple sets of electro-hydraulic lifting cylinders on the upper part of the "I"-shaped transfer bracket. Since the spacing between the electro-hydraulic lifting cylinders is fixed, it may not be possible to adjust the support position according to the blade length, thus having certain limitations. Summary of the Invention

[0003] This utility model addresses the aforementioned shortcomings of the existing technology by providing a wind turbine blade transfer mechanism. After the wind turbine blade is fixed inside the clamp on the upper part of the transfer vehicle, a lead screw motor at the rear of the transfer vehicle drives the lead screw to rotate, causing the lead screw to move the extension frame and simultaneously adjust the position of the blade support vehicle. The support plate on the upper part of the blade support vehicle supports the tail of the wind turbine blade, allowing the support plate on the upper part of the blade support vehicle to be adjusted in position according to the actual length of the wind turbine blade, thereby increasing the adaptability of the equipment.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A wind turbine blade transfer mechanism includes a transfer cart, a double-threaded rod, a screw motor, a guide rod, a support plate, a support roller, a tail clamping seat, an internally threaded cylinder of the clamping seat, and a clamping plate screw seat. The transfer cart has an internal cavity with a screw groove. The screw groove is adapted to and connected to a screw, which rotates within the groove. The rear of the transfer cart is fixedly connected to the screw motor, and the output shaft of the screw motor is fixedly connected to the screw. An extension frame slides within the internal cavity of the transfer cart, and its lower part is fixedly connected to the internally threaded cylinder. The internal threaded connection includes a support rod groove on the side of the transfer cart, a fixed connection between the side of the extension frame and the support rod, a support rod groove that adapts to the support rod, a support rod groove that connects to the support rod, and a support rod that slides within the support rod groove. The front of the blade support cart is fixedly connected to the support rod base, and the front of the support rod base is fixedly connected to the support rod. The lower part of the transfer cart and the lower part of the blade support cart are both fixedly connected to wheels. The upper part of the transfer cart is fixedly connected to a clamping table, which has a screw groove inside. A double-threaded rod rotates within the screw groove. The side of the clamping table is fixedly connected to a screw motor.

[0006] The output shaft of the screw motor is fixedly connected to the double threaded rod, the lower part of the clamp seat is fixedly connected to the internal threaded seat, the internal threaded seat is threadedly connected to the side of the double threaded rod, the upper part of the clamp seat is fixedly connected to the clamp, the two sets of clamps are in corresponding positions, and the side of the blade support vehicle is fixedly connected to the clamp screw seat.

[0007] The front part of the clamp screw seat is fixedly connected to the guide rod, the upper part of the blade support vehicle is fixedly connected to the electric hydraulic lifting cylinder, the upper part of the electric hydraulic lifting cylinder is fixedly connected to the pallet, and the side of the pallet has a pallet guide seat, which is slidably connected inside the guide rod. Beneficial effects

[0008] 1. In the operation of the wind turbine blade transfer mechanism of this utility model, after the wind turbine blade is fixed inside the clamp on the upper part of the transfer vehicle, the screw is driven to rotate by the screw motor at the rear of the transfer vehicle. The screw drives the extension frame to move and at the same time drives the blade support vehicle to adjust its position. In conjunction with the support plate on the upper part of the blade support vehicle, the tail of the wind turbine blade is supported. Thus, the support plate on the upper part of the blade support vehicle can be adjusted to support the actual length of the wind turbine blade, thereby increasing the adaptability of the equipment.

[0009] 2. During the use of the wind turbine blade transfer mechanism of this utility model, the blade support vehicle is moved and adjusted by the screw motor at the rear of the transfer vehicle, and the support rod slide groove inside the transfer vehicle guides and supports the support rod. During use, it avoids deformation caused by unilateral force, which would lead to screw jamming, thereby increasing the stability of the equipment.

[0010] 3. During the use of the wind turbine blade transfer mechanism of this utility model, the tail of the wind turbine blade is supported by the pallet on the upper part of the blade support vehicle, and the clamping plate screw drives the clamping plate to move, so that the two sets of clamping plates on the upper part of the pallet clamp and position the tail of the wind turbine blade, avoiding the tail of the blade from shaking and being damaged during transfer, thereby further increasing the stability of the equipment. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a wind turbine blade transfer mechanism according to the present invention.

[0012] Figure 2 This is a partial cross-sectional schematic diagram of the transfer vehicle structure of the wind turbine blade transfer mechanism described in this utility model.

[0013] Figure 3 This is a three-dimensional assembly schematic diagram of a partial cross-section of the internal cavity structure of the wind turbine blade transfer mechanism of the present invention.

[0014] Figure 4 This is a partial cross-sectional schematic diagram of the clamping platform structure of a wind turbine blade transfer mechanism according to the present invention.

[0015] Figure 5 This is a three-dimensional assembly diagram of the clamp structure of a wind turbine blade transfer mechanism according to the present invention.

[0016] Figure 6 This is a partial cross-sectional schematic diagram of the support frame structure for a wind turbine blade transfer mechanism according to the present invention.

[0017] Figure 7 This is a partial cross-sectional three-dimensional assembly diagram of the tail clamping seat structure of the wind turbine blade transfer mechanism described in this utility model.

[0018] Figure 8 This is a partial cross-sectional schematic diagram of the guide rod base structure of a wind turbine blade transfer mechanism according to the present invention. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0020] Example 1:

[0021] A wind turbine blade transfer mechanism includes a transfer carriage 01, a double-threaded rod 16, a screw motor 17, a guide rod 22, a support plate 24, a support roller 26, a tail clamping seat 27, a clamping seat internal threaded cylinder 30, and a clamping plate screw seat 31. The transfer carriage 01 has an inner cavity 02, and the inner cavity 02 has a screw groove 03. The screw groove 03 is adapted to a screw 04, and the screw groove 03 is connected to the screw 04. The screw 04 rotates inside the screw groove 03. The rear of the transfer carriage 01 is fixedly connected to the screw motor 06, and the output shaft of the screw motor 06 is fixedly connected to the screw 04. During the operation of the wind turbine blade transfer mechanism, after the wind turbine blade is fixed inside the clamp 20 on the upper part of the transfer vehicle 01, the lead screw motor 06 at the rear of the transfer vehicle 01 drives the lead screw 04 to rotate. This causes the lead screw 04 to move the extension frame 07 and simultaneously adjust the position of the blade support vehicle 11. The support plate 24 on the upper part of the blade support vehicle 11 supports the tail of the wind turbine blade. This allows the support plate 24 on the upper part of the blade support vehicle 11 to be adjusted according to the actual length of the wind turbine blade, thereby increasing the adaptability of the equipment. The extension frame 07 is located inside the transfer vehicle. 02. The extension frame 07 is fixedly connected to the internal threaded cylinder 08 at its lower part. The internal threaded cylinder 08 is threadedly connected to the lead screw 04. The side of the transfer car 01 has a support rod groove 09. The side of the extension frame 07 is fixedly connected to the support rod 10. The support rod groove 09 is adapted to the support rod 10 and connects to the support rod 10. The support rod 10 slides inside the support rod groove 09. During the use of the wind turbine blade transfer mechanism, the lead screw motor 06 at the rear of the transfer car 01 drives the blade support car 11 to move and adjust, and cooperates with the internal support of the transfer car 01. The strut slide 09 guides and supports the support rod 10, preventing deformation due to unilateral force during use and thus avoiding jamming of the screw 04, thereby increasing the stability of the equipment. The front of the blade support carriage 11 is fixedly connected to the support rod base 12, and the front of the support rod base 12 is fixedly connected to the support rod 10. The lower part of the transfer carriage 01 and the lower part of the blade support carriage 11 are both fixedly connected to the wheels 13. The upper part of the transfer carriage 01 is fixedly connected to the clamping table 14. The clamping table 14 has a screw groove 15 inside, and the double threaded rod 16 is rotatably connected inside the screw groove 15. The side of the clamping table 14 is fixedly connected to the screw motor 17.

[0022] Example 2:

[0023] The output shaft of the screw motor 17 of this utility model is fixedly connected to the double threaded rod 16, the lower part of the clamp seat 18 is fixedly connected to the internal thread seat 19, the internal thread seat 19 is threadedly connected to the side of the double threaded rod 16, the upper part of the clamp seat 18 is fixedly connected to the clamp 20, the two sets of clamps 20 are in corresponding positions, and the side of the blade support car 11 is fixedly connected to the clamp screw seat 31.

[0024] Example 3:

[0025] The front part of the clamp screw seat 31 of this utility model is fixedly connected to the guide rod 22, the upper part of the blade support trolley 11 is fixedly connected to the electric hydraulic lifting cylinder 23, the upper part of the electric hydraulic lifting cylinder 23 is fixedly connected to the support plate 24, and the side of the support plate 24 has a support plate guide seat 25, which is slidably connected inside the guide rod 22.

[0026] Example 4:

[0027] The front part of the pallet 24 of this utility model is rotatably connected to the support roller 26, the upper part of the pallet 24 is fixedly connected to the tail clamping seat 27, the tail clamping seat 27 is adapted to the clamping guide rod 28, the tail clamping seat 27 is connected to the clamping guide rod 28, the clamping guide rod 28 slides on the side of the tail clamping seat 27, the front part of the clamping guide rod 28 is fixedly connected to the clamping plate 29, and the two sets of clamping plates 29 are in corresponding positions.

[0028] Example 5:

[0029] The tail clamping seat 27 of this utility model is fixedly connected to the internal threaded cylinder 30 of the clamping seat. The front part of the clamping screw 32 is rotatably connected to the clamping screw seat 31. The front part of the clamping screw seat 31 is fixedly connected to the clamping plate 29. During the use of the wind turbine blade transfer mechanism, the tail of the wind turbine blade is supported by the support plate 24 on the upper part of the blade support carriage 11. The clamping screw 32 drives the clamping plate 29 to move, so that the two sets of clamping plates 29 on the upper part of the support plate 24 clamp and position the tail of the wind turbine blade, avoiding tail shaking and damage during transfer, thereby further increasing the stability of the equipment. The rear part of the clamping guide rod 28 is fixedly connected to the guide rod base 33. The clamping screw 32 rotates inside the guide rod base 33. The front part of the transfer carriage 01 is fixedly connected to the blade limit 34. The clamp 20 corresponds to the blade limit 34.

[0030] Example 6:

[0031] The installation steps of this utility model are as follows: Rotate the lead screw 04 inside the lead screw groove 03; fix the rear of the transfer cart 01 to the lead screw motor 06; fix the output shaft of the lead screw motor 06 to the lead screw 04; slide the extension frame 07 inside the inner cavity 02 of the transfer cart; fix the lower part of the extension frame 07 to the internal threaded cylinder 08; thread the internal threaded cylinder 08 inside the lead screw 04; fix the side of the extension frame 07 to the support rod 10; slide the support rod 10 inside the support rod slide groove 09; fix the front of the blade support cart 11 to the support rod base 12. Next, the front part of the support rod base 12 is fixedly connected to the support rod 10. The lower part of the transfer cart 01 and the lower part of the blade support cart 11 are both fixedly connected to the wheels 13. The upper part of the transfer cart 01 is fixedly connected to the clamping table 14. The double threaded rod 16 is rotatably connected inside the screw groove 15. The side of the clamping table 14 is fixedly connected to the screw motor 17. The output shaft of the screw motor 17 is fixedly connected to the double threaded rod 16. The lower part of the clamping seat 18 is fixedly connected to the internal threaded seat 19. The internal threaded seat 19 is threadedly connected to the side of the double threaded rod 16. The upper part of the clamping seat 18 is connected to the internal threaded seat 19. The clamps 20 are fixedly connected, aligning the positions of the two sets of clamps 20. The side of the blade support carriage 11 is fixedly connected to the clamp screw seat 31, and the front of the clamp screw seat 31 is fixedly connected to the guide rod 22. The upper part of the blade support carriage 11 is fixedly connected to the electric hydraulic lifting cylinder 23, and the upper part of the electric hydraulic lifting cylinder 23 is fixedly connected to the pallet 24. The pallet guide seat 25 is slidably connected inside the guide rod 22. The front of the pallet 24 is rotatably connected to the support roller 26. The upper part of the pallet 24 is fixedly connected to the tail clamp seat 27. The clamp guide rod 28 is clamped at the tail. The side of the holding seat 27 slides, fixing the front of the clamping guide rod 28 to the clamping plate 29, aligning the positions of the two sets of clamping plates 29, fixing the inside of the tail clamping seat 27 to the clamping seat inner threaded cylinder 30, rotating the front of the clamping plate screw 32 to the clamping plate screw seat 31, fixing the front of the clamping plate screw seat 31 to the clamping plate 29, fixing the rear of the clamping guide rod 28 to the guide rod base 33, rotating the clamping plate screw 32 inside the guide rod base 33, fixing the front of the transfer car 01 to the blade limit 34, and aligning the clamp 20 with the blade limit 34.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A wind turbine blade transfer mechanism, characterized in that: The system includes a transfer cart (01), a double threaded rod (16), a screw motor (17), a guide rod (22), a support plate (24), a support roller (26), a tail clamping seat (27), a clamping seat internal threaded cylinder (30), and a clamping plate screw seat (31). The transfer cart (01) has a transfer cart cavity (02) inside, and a screw groove (03) inside the transfer cart cavity (02). The screw groove (03) is adapted to the screw (04), and the screw groove (03) is connected to the screw (04). The screw (04) rotates inside the screw groove (03). The rear of the transfer cart (01) is fixedly connected to the screw motor (06), and the output shaft of the screw motor (06) is fixedly connected to the screw (04). An extension frame (07) slides inside the transfer cart cavity (02), and the lower part of the extension frame (07) is fixedly connected to the internal threaded cylinder (08). The internal threaded cylinder (08) rotates inside the screw (04). 4) Internal threaded connection, the side of the transfer car (01) has a support rod groove (09), the side of the extension frame (07) is fixedly connected to the support rod (10), the support rod groove (09) is adapted to the support rod (10), the support rod groove (09) is connected to the support rod (10), the support rod (10) slides inside the support rod groove (09), the front of the blade support car (11) is fixedly connected to the support rod base (12), the front of the support rod base (12) is fixedly connected to the support rod (10), the lower part of the transfer car (01) and the lower part of the blade support car (11) are both fixedly connected to the wheel (13), the upper part of the transfer car (01) is fixedly connected to the clamping table (14), the clamping table (14) has a screw groove (15) inside, the double threaded rod (16) is rotatably connected inside the screw groove (15), the side of the clamping table (14) is fixedly connected to the screw motor (17).

2. The wind turbine blade transfer mechanism according to claim 1, characterized in that: The output shaft of the screw motor (17) is fixedly connected to the double threaded rod (16), the lower part of the clamp seat (18) is fixedly connected to the internal thread seat (19), the internal thread seat (19) is threadedly connected to the side of the double threaded rod (16), the upper part of the clamp seat (18) is fixedly connected to the clamp (20), the two sets of clamps (20) are in corresponding positions, and the side of the blade support car (11) is fixedly connected to the clamp screw seat (31).

3. A wind turbine blade transfer mechanism according to claim 2, characterized in that: The front part of the clamp screw seat (31) is fixedly connected to the guide rod (22), the upper part of the blade support vehicle (11) is fixedly connected to the electric hydraulic lifting cylinder (23), the upper part of the electric hydraulic lifting cylinder (23) is fixedly connected to the pallet (24), the side of the pallet (24) has a pallet guide seat (25), and the pallet guide seat (25) is slidably connected inside the guide rod (22).

4. A wind turbine blade transfer mechanism according to claim 3, characterized in that: The front part of the pallet (24) is rotatably connected to the support roller (26), the upper part of the pallet (24) is fixedly connected to the tail clamping seat (27), the tail clamping seat (27) is adapted to the clamping guide rod (28), the tail clamping seat (27) is connected to the clamping guide rod (28), the clamping guide rod (28) slides on the side of the tail clamping seat (27), the front part of the clamping guide rod (28) is fixedly connected to the clamping plate (29), and the two sets of clamping plates (29) are in corresponding positions.

5. A wind turbine blade transfer mechanism according to claim 4, characterized in that: The tail clamping seat (27) is fixedly connected to the internal threaded cylinder (30) of the clamping seat. The front part of the clamping screw (32) is rotatably connected to the clamping screw seat (31). The front part of the clamping screw seat (31) is fixedly connected to the clamping plate (29). The rear part of the clamping guide rod (28) is fixedly connected to the guide rod base (33). The clamping screw (32) rotates inside the guide rod base (33). The front part of the transfer car (01) is fixedly connected to the blade limiter (34). The clamp (20) and the blade limiter (34) are in the same position.

Citation Information

Patent Citations

  • Transfer mechanism for blades of wind driven generator

    CN215486381U