Variable-track wind power blade polishing device

Abstract

The invention discloses a variable track wind power blade polishing device, which relates to the technical field of wind turbine generator blade manufacturing post-processing, and comprises a rack, a plurality of track adjusting mechanisms, a plurality of track supporting seats, a track module and a polishing mechanism, the rack is fixed through an external supporting base, the rail adjusting mechanism is fixedly connected to the rack and can adjust the positions of the rail supporting bases in the radial direction of the rack, the rail supporting bases are fixedly connected to the ends of the rail adjusting mechanism, and every two adjacent rail supporting bases are tightly arranged together. The track module is located on the track supporting base, and the polishing mechanism can slide along the track module. According to the variable-track wind power blade polishing device, the shape of the track module can be changed to adapt to the curvature change of a wind power blade, and constant-force polishing is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of post-processing of wind turbine blade manufacturing, and in particular relates to a variable-orbit wind turbine blade grinding device. Background Art

[0002] As an important component of new energy, wind power plays an irreplaceable role. However, as one of the key core components of the entire wind turbine generator set, the corresponding manufacturing level of wind turbine blades represents the core competitiveness of related industries. Among them, grinding is one of the key steps in the manufacturing and post-processing of wind turbine blades. By grinding the surface, the surface roughness is improved to increase the adsorption of surface materials such as coatings and gel coats.

[0003] However, existing wind turbine blade grinding mechanisms usually adopt fixed paths or simple motion modes, which have obvious shortcomings when dealing with complex curvature changes of blades. It is difficult to adapt to the curvature changes of blades, resulting in uneven grinding, especially excessive or insufficient grinding at the mold joint, affecting the surface quality and aerodynamic performance of the blades.

[0004] In addition, most existing wind turbine blade grinding mechanisms perform horizontal grinding during the production process. This type of wind turbine blade grinding mechanism has a disadvantage that when the surface of a working wind turbine blade is worn and needs to be re-grinded, the wind turbine blade must be disassembled and placed horizontally on a work platform, which is time-consuming and labor-intensive. Summary of the invention

[0005] The purpose of the present invention is to provide a variable track wind turbine blade grinding device to solve the problem of uneven grinding of wind turbine blades in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A variable track wind turbine blade grinding device comprises a frame, a plurality of track adjustment mechanisms, a plurality of track support seats, a track module and a grinding mechanism; the frame is fixed by an external support base, the track adjustment mechanism is fixedly connected to the frame, the track adjustment mechanism can adjust the position of the track support seat along the radial direction of the frame, the track support seat is fixedly connected to the end of the track adjustment mechanism, and two adjacent track support seats are closely arranged together, the track module is located on the track support seat, and the grinding mechanism can slide along the track module.

[0008] Optionally, a plurality of fixing seats are evenly distributed on the frame, and each of the fixing seats is connected to a track adjustment mechanism.

[0009] Optionally, the track adjustment mechanism includes a driving device and a pushing member, and the driving device provides power to the pushing member to drive the track support seat to move.

[0010] Optionally, the driving device is a servo motor, the pushing member is a screw rod, the servo motor is bolted to a fixing seat, and the screw rod passes through the servo motor.

[0011] Optionally, a rotating servo is provided on the track support seat, and the direction of the track module is fine-tuned by the rotating servo.

[0012] Optionally, the track module is formed by splicing a plurality of track components.

[0013] Optionally, the grinding mechanism includes a moving wheel and a grinding roller, wherein the moving wheel is driven by a motor and slides on the track module; the grinding roller is connected to the inner side of the moving wheel and driven by the motor to grind the surface of the wind turbine blade.

[0014] Optionally, a telescopic mechanism is provided between the moving wheel and the grinding roller.

[0015] Optionally, it further includes a crack detection mechanism, which can slide along the track module to detect the wind turbine blades; the crack detection mechanism includes a moving wheel and a detection element, the moving wheel is driven by a motor to slide along the track module, and the detection element is connected to the inner side of the moving wheel.

[0016] Optionally, a telescopic mechanism is provided between the moving wheel and the detection element.

[0017] Beneficial effects: The variable track wind turbine blade grinding device of the present invention has the following advantages:

[0018] (1) The shape of the track module can be changed to adapt to the curvature change of the wind turbine blade, thereby achieving constant force grinding; in addition, the grinding device can adapt to wind turbine blades of different shapes without the need for re-customization;

[0019] (2) Through the detection of the crack detection mechanism, the surface of the wind turbine blade can be inspected in advance to avoid unnecessary waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the variable track wind turbine blade grinding device in Example 1;

[0021] Figure 2 A schematic diagram of the connection between the frame and the track adjustment mechanism in the embodiment;

[0022] Figure 3 It is a schematic diagram of the overall structure of the grinding mechanism in the embodiment;

[0023] Figure 4 It is a schematic diagram of the overall structure of the grinding mechanism from another perspective in the embodiment;

[0024] Figure 5This is a schematic diagram of the connection between the variable track wind turbine blade grinding device and the support base in the embodiment;

[0025] Figure 6 This is a schematic diagram of the overall structure of the variable track wind turbine blade grinding device in Example 2;

[0026] Figure 7 Schematic diagram of the overall structure of the crack detection mechanism in Example 2;

[0027] Figure 8-Figure 10 This is a schematic diagram of the variable track wind turbine blade grinding device cooperating with blades of different shapes.

[0028] In the figure: 1. frame; 11. fixing seat; 2. track adjustment mechanism; 21. servo motor; 22. screw; 3. track support seat; 4. track module; 5. grinding mechanism; 51. grinding roller; 6. rotating servo; 7. crack detection mechanism. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0030] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0031] In the description of the present invention, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0032] Example 1

[0033] like Figure 1-Figure 8As shown, this embodiment provides a variable track wind turbine blade grinding device, including a frame 1, a plurality of track adjustment mechanisms 2, a plurality of track support seats 3, a track module 4 and a grinding mechanism 5; the frame 1 is fixed by an external support base, the track adjustment mechanism 2 is fixedly connected to the frame 1, the track adjustment mechanism 2 can adjust the position of the track support seat 3 radially along the frame 1, the track support seat 3 is fixedly connected to the end of the track adjustment mechanism 2, and two adjacent track support seats 3 are closely arranged together, the track module 4 is located on the track support seat 3, and the grinding mechanism 5 can slide along the track module 4.

[0034] For details, see Figure 1 The external support base is fixedly connected to the back side of the rack 1 to provide support for the rack 1, see Figure 5 Preferably, the support base includes an oblique brace and an annular fixing frame, one end of the oblique brace is fixedly connected to the back side of the frame 1, and the other end is fixedly connected to the annular fixing frame; a movable pulley is fixedly connected to the inner side of the annular fixing frame. In this embodiment, the annular fixing frame is provided with two layers, and three movable pulleys are evenly distributed on the inner side of each layer of the annular fixing frame, for a total of six movable slides; there is no limit to the number of layers of the annular fixing frame and the number of movable pulleys, which can be specifically set according to the size of the annular fixing frame; the movable pulley can slide up and down on the external track to adjust the upper and lower positions of the frame 1, so that the grinding mechanism 5 can reach various positions of the wind turbine blades.

[0035] Furthermore, a telescopic bracket is provided between the movable pulley and the annular fixing frame. By providing the telescopic bracket, the position of the movable pulley can be conveniently adjusted to adapt to tracks of different sizes.

[0036] In a preferred embodiment, see Figure 2 A plurality of fixed seats 11 are evenly distributed on the frame 1, and each of the fixed seats 11 is connected to a track adjustment mechanism 2; specifically, the main body of the frame 1 is annular, the outer side of which is fixedly connected to the external support base, and a plurality of fixed seats 11 are evenly distributed on the inner side; each of the fixed seats 11 is connected to a track adjustment mechanism 2.

[0037] Specifically, the track adjustment mechanism 2 includes a driving device and a pushing member, and the driving device provides power to the pushing member to drive the track support seat 3 to move; in the present embodiment, the track adjustment mechanism 2 is a servo motor 21, and the pushing member is a screw rod 22, and the servo motor 21 is bolted to the fixing seat 11, and the screw rod passes through the servo motor 21; in the present embodiment, the servo motor 21 is located inside the servo motor frame, and the four corner bolts at the bottom of the servo motor frame are fixed to the fixing seat 11, and the screw rod 22 passes through the servo motor and the servo motor frame and points directly to the inside of the frame 1; the forward and reverse rotation of the servo motor 21 can drive the screw rod 22 to move inward and outward, thereby adjusting the position of the track support seat 3.

[0038] In this embodiment, see Figure 2 The track support seat 3 is C-shaped, and the track module 4 is arranged at the C-shaped notch inside the track support seat 3, wherein the track module 4 is composed of several track components (in the attached Figure 1 Only part of the track module 4 is drawn in the figure, so when one of the track components is damaged, it is easy to disassemble and repair; the various track components are spliced ​​in sequence along the track support seat 3. Since each track support seat 3 is controlled by a separate track adjustment mechanism 2, the track module 4 will change with the change of the position of each track support seat 3, thereby adapting to wind turbine blades with different curvatures.

[0039] To ensure the grinding quality of wind turbine blades, see Figure 2 The track support seat 3 is provided with a rotating steering gear 6, and the direction of the track module 4 is fine-tuned by rotating the steering gear 6; specifically, the rotating steering gear 6 is arranged on the back side of the track module 4, and its function is to fine-tune the direction of the track module 4 so that the track module 4 remains parallel to the surface of the wind turbine blade, so that the force on the grinding mechanism 5 can act evenly on the blade surface, ensuring uniform grinding of the blade.

[0040] In a preferred embodiment, see Figure 3 and Figure 4 The grinding mechanism 5 includes a moving wheel and a grinding roller 51. The moving wheel is driven by a motor and slides on the track module 4. The grinding roller 51 is connected to the inner side of the moving wheel and driven by the motor to grind the surface of the wind turbine blade. In this embodiment, two moving wheels are provided, and the two moving wheels are fixed together by a connecting plate, one of which is an active moving wheel and the other is a driven moving wheel. The active moving wheel is connected to the output shaft of the motor, and the two moving wheels are connected by a belt, and the active moving wheel drives the driven moving wheel to rotate; the grinding roller 51 is connected to the inner side of the connecting plate and driven by the motor to grind the surface of the wind turbine blade.

[0041] In a preferred embodiment, see Figure 3 A telescopic mechanism is provided between the moving wheel and the grinding roller 51, and the extension length of the grinding roller 51 is adjusted by the telescopic mechanism; the position of the grinding roller 51 can be adjusted for the first time by adjusting the track adjustment mechanism 2; the position of the grinding roller 51 can be finely adjusted for the second time by the setting of the telescopic mechanism; the setting of the telescopic mechanism further ensures that the distance between each grinding roller and the surface of the blade is the shortest, and the various parts of the blade are subjected to balanced force, thereby achieving constant force grinding.

[0042] A variable track wind turbine blade grinding device in this embodiment, the track module 4 can change according to the change of the position of the track support seat 3, and the shape of the track module 4 is adjusted to adapt to the cross-sectional shape of the wind turbine blade, providing the grinding mechanism 5 with the track module 4 closest to the surface of the wind turbine blade to achieve constant force grinding.

[0043] The variable track wind turbine blade grinding device of this embodiment can adapt to wind turbine blades of different shapes due to the variability of the track module 4. It does not need to be re-customized according to the shape of the wind turbine blade and has a wide range of applications.

[0044] Working principle:

[0045] (1) The grinding device of this embodiment is fixedly connected to an external support base, and the grinding device is placed on the bottom of the wind turbine blade to be ground;

[0046] (2) starting the servo motor 21 to adjust the position of each track support seat 3 to a suitable position;

[0047] (3) Start the steering gear 6 to adjust the direction of the track module 4 so that it remains parallel to the wind turbine blades;

[0048] (4) starting the telescopic mechanism to finely adjust the position of the grinding roller 51;

[0049] (5) Start polishing;

[0050] (6) After the grinding is completed, move the grinding device to the next grinding position;

[0051] (7) Repeat the polishing process from (2) to (6).

[0052] Example 2

[0053] In the actual grinding process, due to various reasons, cracks may appear on the surface of the wind turbine blade before grinding; for example: material fatigue, manufacturing defects, environmental factors, external impact and design problems, etc.; grinding the wind turbine blade at this time is tantamount to a waste of resources; therefore, it is necessary to design a grinding device that can detect the surface of the wind turbine blade in advance.

[0054] See also Figure 6 and Figure 7 This embodiment provides a variable track wind turbine blade grinding device, which, based on Embodiment 1, further includes a crack detection mechanism 7, which can slide along the track module 4 to detect the wind turbine blades; preferably, the crack detection mechanism 7 includes a moving wheel and a detection element, the moving wheel is driven by a motor to slide along the track module 4, and the detection element is connected to the inner side of the moving wheel.

[0055] Specifically, the crack detection mechanism 7 is arranged in front of the grinding mechanism 5. The crack detection mechanism 7 first slides over the surface of the wind turbine blade and detects the surface of the wind turbine blade to see whether there are cracks. When the detection result shows that there are cracks, the grinding is stopped. When the detection result shows that there are no cracks, the rear grinding mechanism 5 continues to slide and grind.

[0056] In order to provide a suitable detection position for the detection element, in a preferred embodiment, a telescopic mechanism is provided between the moving wheel and the detection element, and the extension length of the detection element can be adjusted by the telescopic mechanism.

[0057] A variable track wind turbine blade grinding device of the present embodiment can detect the surface of the wind turbine blade in advance by setting a crack detection mechanism, thereby avoiding unnecessary waste of resources.

[0058] See also Figure 8-Figure 10 , which is a schematic diagram of the grinding device cooperating with blades of different shapes.

[0059] exist Figure 8 and Fig. 9 In the figure, the cross-sections of the wind turbine blades are all in the shape of raindrops, but the curvatures of the two wind turbine blades are slightly different. When in use, first start the servo motor 21, and control the wind turbine blades to move radially inward and outward along the frame 1 through the forward and reverse rotation of the servo motor 21, adjust each track support seat 3 to a suitable position, and all the track support seats 3 are enclosed in a shape that matches the blade cross-section. Since the track module 4 is arranged on the track support seat 3, the track module 4 will also change with the change of the position of the track support seat 3 to adapt to the cross-sectional shape of the blade; then, start the rotating servo 6, adjust the direction of the track module 4, so that the track module 4 remains parallel to the blade surface, and then start the telescopic mechanism to finely adjust the position of the grinding roller 51 to ensure that the position of each grinding roller 51 is closest to the blade surface; finally, start the motor and start grinding.

[0060] Fig.10 In the embodiment, the wind turbine blades are in the shape of willow leaves. When in use, the servo motor 21 is first started. The servo motor 21 is used to control the wind turbine blades to move radially inward and outward along the frame 1 through forward and reverse rotation. Each track support seat 3 is adjusted to a suitable position. All track support seats 3 are enclosed in a shape that matches the blade cross section. Since the track module 4 is arranged on the track support seat 3, the track module 4 will also change with the change of the position of the track support seat 3 to adapt to the cross-sectional shape of the blade; then, the rotating servo 6 is started to adjust the direction of the track module 4 so that the track module 4 remains parallel to the blade surface, and then the telescopic mechanism is started to finely adjust the position of the grinding roller 51 to ensure that the position of each grinding roller 51 is closest to the blade surface; finally, the motor is started to start grinding.

[0061] Although Figure 8-Figure 10The curvatures of wind turbine blades are all different, but the grinding mechanism of the present invention can always adjust the position of the track module 4 to adapt to the blade shape, provide the grinding mechanism 5 with a grinding position closest to the blade, and achieve constant force grinding.

[0062] It should be noted that in this embodiment, the screw rod 22 has a sufficient length so that the position of the track support seat 3 can be adjusted within a relatively large range.

[0063] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A variable track wind turbine blade grinding device, characterized in that: The invention comprises a frame (1), a plurality of track adjustment mechanisms (2), a plurality of track support seats (3), a track module (4) and a grinding mechanism (5); the frame (1) is fixed by an external support base, the track adjustment mechanism (2) is fixedly connected to the frame (1), the track adjustment mechanism (2) can adjust the position of the track support seat (3) along the radial direction of the frame (1), the track support seat (3) is fixedly connected to the end of the track adjustment mechanism (2), and two adjacent track support seats (3) are closely arranged together, the track module (4) is located on the track support seat (3), and the grinding mechanism (5) can slide along the track module (4).

2. A variable track wind turbine blade grinding device according to claim 1, characterized in that: A plurality of fixing seats (11) are evenly distributed on the frame (1), and each of the fixing seats (11) is connected to a track adjustment mechanism (2).

3. A variable track wind turbine blade grinding device according to claim 2, characterized in that: The track adjustment mechanism (2) comprises a driving device and a pushing member, wherein the driving device provides power to the pushing member to drive the track support seat (3) to move.

4. A variable track wind turbine blade grinding device according to claim 3, characterized in that: The driving device is a servo motor (21), the pushing member is a screw rod (22), the servo motor (21) is bolted to a fixing seat (11), and the screw rod (22) passes through the servo motor (21).

5. The variable track wind turbine blade grinding device according to claim 1, characterized in that: The track support seat (3) is provided with a rotating steering gear (6), and the direction of the track module (4) is finely adjusted by the rotating steering gear (6).

6. The variable track wind turbine blade grinding device according to claim 1, characterized in that: The track module (4) is formed by splicing a plurality of track components.

7. The variable track wind turbine blade grinding device according to claim 1, characterized in that: The grinding mechanism (5) comprises a moving wheel and a grinding roller (51); the moving wheel is driven by a motor and slides along the track module (4); the grinding roller (51) is connected to the inner side of the moving wheel and driven by the motor to grind the surface of the wind turbine blade.

8. The variable track wind turbine blade grinding device according to claim 7, characterized in that: A telescopic mechanism is provided between the moving wheel and the grinding roller (51).

9. The variable track wind turbine blade grinding device according to claim 1, characterized in that: It also includes a crack detection mechanism (7), which can slide along the track module (4) to detect the wind turbine blades; the crack detection mechanism (7) includes a moving wheel and a detection element, the moving wheel is driven by a motor to slide along the track module (4), and the detection element is connected to the inner side of the moving wheel.

10. The variable track wind turbine blade grinding device according to claim 9, characterized in that: A telescopic mechanism is arranged between the moving wheel and the detection element.

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