Rotating mechanism of wind turbine blade root end machining equipment
By using a servo motor-driven gear and ring gear meshing transmission and an incremental magnetic grating encoder, the precision problem of the root end rotation mechanism of wind turbine blades was solved, achieving high-precision rotation control and positioning, and improving processing accuracy and equipment operational stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-03
AI Technical Summary
The existing rotating mechanisms of wind turbine blade root end processing equipment are difficult to control precisely in terms of rotation angle and speed, which affects processing accuracy and the reliability and stability of equipment operation.
The system employs a servo motor-driven gear and ring gear meshing transmission, combined with an incremental magnetic grating belt encoder, to achieve precise rotation control and high-precision positioning of the blade root. The gear transmission drives the disk to rotate, and the incremental magnetic grating belt encoder obtains high-resolution angle feedback.
It enables multi-angle, all-round precision machining of the blade root tip, improving machining accuracy and positioning precision, and ensuring efficient operation of the equipment.
Smart Images

Figure CN223960892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind turbine blade root end processing technology, and in particular to a rotating mechanism for wind turbine blade root end processing equipment. Background Technology
[0002] The rotating mechanism of the wind turbine blade root end processing equipment is a key component used to achieve rotation during the processing of the blade root end in the wind turbine blade manufacturing process.
[0003] The existing rotating mechanisms in wind turbine blade root machining equipment have significant shortcomings. Traditional power-driven methods struggle to precisely control the rotation angle and speed of the blade root, resulting in machining accuracy that cannot meet ever-increasing manufacturing requirements. Furthermore, in terms of rotation angle feedback and positioning, relying solely on the encoder integrated into the motor limits accuracy, preventing the achievement of high-precision machining of the blade root and consequently impacting the overall operational reliability and stability of the wind turbine. Utility Model Content
[0004] The purpose of this invention is to provide a rotating mechanism for a wind turbine blade root end processing device, which solves the above-mentioned problems.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a rotating mechanism for processing the root end of a wind turbine blade, comprising a rotating machining center, the rotating machining center being composed of a rotating mechanism and a machining structure, the machining structure being disposed at the front end of the rotating mechanism, the rotating mechanism being composed of a connecting plate and a slewing support frame, the connecting plate being disposed at the rear end of the machining structure, a disc being rotatably disposed at the front end of the connecting plate, servo motors being disposed at the upper and lower ends of the rear end of the connecting plate, and a slewing support frame being disposed at the middle position of the rear end of the connecting plate.
[0006] Preferably, the connecting plate has a toothed ring inside, which is fixed to the rear end of the disk. The shaft at the front end of the servo motor is fixed with a gear, which is placed inside the toothed ring and meshes with it.
[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0008] 1. The present invention provides a rotating mechanism for a wind turbine blade root end processing equipment. It uses a servo motor as a power source and drives a disc to rotate through gear and gear ring meshing transmission. This drives the processing structure mounted on the disc to move. Under the precise control of the servo motor, it can rotate at a set angle and speed to achieve precise processing of different positions at the blade root end and complete multi-angle and all-round processing operations.
[0009] 2. The rotating mechanism of the wind turbine blade root end processing equipment provided by this utility model uses an incremental magnetic grating belt to obtain rotation angle feedback between the rotating support frame and the rotating shaft of the disc. Its accuracy is better than that of using only the encoder of the motor, which can provide more accurate angle information and help improve the processing accuracy.
[0010] 3. The present invention provides a rotating mechanism for a wind turbine blade root end processing equipment. The disc is equipped with an incremental magnetic grating encoder, which can perform high-precision rotational positioning of the boom, ensuring accurate positioning of the equipment during processing and further ensuring the precision of blade root end processing. Attached Figure Description
[0011] Figure 1 This is an exploded view of the rotary machining center structure of this utility model;
[0012] Figure 2 This is a top view of the rotary machining center of this utility model.
[0013] Figure 3 This is a schematic diagram of the rotating mechanism structure of this utility model;
[0014] Figure 4 This is a cross-sectional view of the connecting plate structure of this utility model.
[0015] The following are the annotations in the figure: 3. Rotary machining center; 8. Rotary mechanism; 81. Connecting plate; 82. Rotary support frame; 9. Machining structure; 10. Servo motor; 101. Gear ring; 102. Gear; 11. Disc. Detailed Implementation
[0016] 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.
[0017] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.
[0018] Combination Figures 1 to 4As shown, the present invention discloses a rotating mechanism for a wind turbine blade root end processing device, comprising a rotating machining center 3, which is composed of a rotating mechanism 8 and a processing structure 9. The processing structure 9 is located at the front end of the rotating mechanism 8. The rotating mechanism 8 is composed of a connecting plate 81 and a slewing support frame 82. The connecting plate 81 is located at the rear end of the processing structure 9. A disc 11 is rotatably mounted at the front end of the connecting plate 81. Servo motors 10 are mounted at the upper and lower ends of the rear end of the connecting plate 81. The slewing support frame 82 is located at the middle position of the rear end of the connecting plate 81.
[0019] The connecting plate 81 has a gear ring 101 inside, which is fixed to the rear end of the disk 11. The shaft at the front end of the servo motor 10 is fixed with a gear 102, which is placed inside the gear ring 101 and meshes with it.
[0020] Working principle:
[0021] The servo motor 10 serves as the power source. It drives the gear 102 to rotate the meshing gear ring 101, thereby transmitting power to the disk 11, which in turn rotates at the front end of the connecting plate 81. Since the machining structure 9 is mounted on the disk 11, the slewing support frame 82 provides support and stability for the entire rotational motion. Under the precise control of the servo motor 10, the disk 11 rotates at a set angle and speed, which in turn drives the machining structure 9 mounted on the disk 11 to rotate accordingly. This allows the machining structure 9 to precisely machine different positions at the root of the blade, achieving multi-angle and omnidirectional machining operations.
[0022] The slewing support frame 82 and the rotating shaft of the disc 11 use incremental magnetic grating belts to obtain high-resolution rotation angle feedback, which is superior to the accuracy of using only the encoder built into the motor; the disc 11 is equipped with an incremental magnetic grating belt encoder for high-precision rotational positioning of the boom.
[0023] 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.
[0024] 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 wind turbine blade root machining apparatus rotation mechanism comprising a rotating machining centre (3), characterised in that: The rotary machining center (3) is composed of a rotary mechanism (8) and a machining structure (9), the machining structure (9) is arranged at the front end of the rotary mechanism (8), the rotary mechanism (8) is composed of a connecting plate (81) and a rotary support frame (82), the connecting plate (81) is arranged at the rear end of the machining structure (9), the front end of the connecting plate (81) is rotatably provided with a disc (11), the upper and lower ends of the rear end of the connecting plate (81) are provided with servo motors (10), and the middle position of the rear end of the connecting plate (81) is provided with the rotary support frame (82).
2. A wind turbine blade root machining apparatus rotation mechanism according to claim 1, characterised in that: The inside of the connecting plate (81) is provided with a gear ring (101), the gear ring (101) is fixed to the rear end of the disc (11), the rotating shaft of the front end of the servo motor (10) is fixed with a gear (102), and the gear (102) is arranged in the inside of the gear ring (101) and is engaged with the gear ring (101).