A decommissioned wind turbine blade dismantling device with self-optimizing shape finding function

Abstract

This invention discloses a decommissioned wind turbine blade dismantling device with self-optimizing shape-finding function, belonging to the field of wind turbine blade dismantling technology. It includes a support frame with support positions for supporting and fixing the airfoil body and a clamping mechanism for clamping the flexible trailing edge. A guide rail is provided on the support frame, and the movement path of the guide rail coincides with the connection between the airfoil body and the flexible trailing edge. A cutting blade capable of moving along the guide rail is installed on the guide rail. The clamping mechanism includes multiple clamping cylinders arranged along the extension direction of the flexible trailing edge, and a drive cylinder fixedly installed on the support frame for pushing the clamping cylinders to move linearly. The support frame has multiple sliding grooves corresponding to the clamping cylinders. A fixing block extending into the sliding groove is fixedly connected to each clamping cylinder, and a spring is fixedly connected between the fixing block and the inner wall of the sliding groove. This invention stretches the flexible trailing edge in the clamping state using the clamping cylinders, putting the flexible trailing edge in a taut state to facilitate cutting.

Description

Technical Field

[0001] This invention belongs to the field of wind turbine blade dismantling technology, specifically relating to a decommissioned wind turbine blade dismantling device with self-optimizing shape finding function. Background Technology

[0002] The dismantling process of wind turbine blades typically involves multiple stages. First, contaminants, coatings, and other residues adhering to the surface of the discarded blades must be removed. Then, they are broken down into smaller fragments through cutting or crushing. The dismantling process plays a crucial role in the resource utilization of discarded wind turbine blades, providing technical support for further improving the recycling efficiency of retired wind turbine equipment. For retired wind turbine blades with self-optimizing shape-finding capabilities, their structural characteristics and material strength differ significantly from traditional wind turbine blades, necessitating adjustments to the dismantling methods. Taking flexible blades as an example, the rigid load-bearing structure is transformed into a flexible load-bearing structure through material layup design or the application of movable joints. Under extreme weather conditions, flexible blades can reduce aerodynamic impact through deformation and possess a certain degree of self-optimizing shape-finding capability. For instance, an existing patent (publication number: CN218093301U) discloses a wind turbine blade airfoil design with a flexible trailing edge. By bonding and fixing a flexible trailing edge to the trailing end of the wind turbine blade airfoil body, the dynamic load on the blade under operation and extreme conditions is effectively reduced, thereby significantly improving aerodynamic performance. However, in the process of recycling and reusing retired blades, due to the differences in material composition and strength characteristics between the airfoil body and the flexible trailing edge, the corresponding recycling methods also need to be different according to the material.

[0003] Therefore, it is necessary to propose a decommissioned wind turbine blade dismantling device with self-optimizing shape-finding function to solve the above problems. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a decommissioned wind turbine blade dismantling device with self-optimizing shape finding function, for dismantling the blade airfoil body and flexible trailing edge.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a decommissioned wind turbine blade dismantling device with self-optimizing shape-finding function, including a support frame. The support frame is provided with a support position for supporting and fixing the airfoil body and a clamping mechanism for clamping the flexible trailing edge. The support frame is provided with a guide rail, the movement path of which is consistent with the connection between the airfoil body and the flexible trailing edge. A mounting frame that can move along the guide rail is mounted on the guide rail, and a cutting blade is mounted on the mounting frame. The clamping mechanism includes multiple clamping components arranged along the extension direction of the flexible trailing edge. Each clamping component includes a clamping cylinder that is radially slidably mounted on the support frame along the flexible trailing edge, and a drive cylinder that is fixedly mounted on the support frame for pushing the clamping cylinder to move linearly. The support frame is provided with multiple sliding grooves that correspond one-to-one with the clamping cylinders. A fixing block extending into the sliding groove is fixedly connected to the clamping cylinder, and a spring is fixedly connected between the fixing block and the inner wall of the sliding groove.

[0007] Furthermore, when cutting the flexible trailing edge, after the airfoil body is fixedly installed in the support position, the drive cylinder is activated to push the clamping cylinder to move to the flexible trailing edge. Then, the clamping cylinder is activated again to clamp the flexible trailing edge, and the drive cylinder is returned to its original position so that the clamping cylinder stretches the flexible trailing edge under the elastic force of the spring. Then, the cutting blade is activated and the mounting bracket is moved along the guide rail so that the cutting blade cuts the connection between the airfoil body and the flexible trailing edge.

[0008] Furthermore, the bracket is equipped with a negative pressure mechanism for fixing the airfoil body. The negative pressure mechanism includes two clamping blocks installed on the side of the airfoil body near the flexible trailing edge. A linear cylinder for outputting linear motion is fixedly installed on the side of the clamping blocks away from the airfoil body. The linear cylinder can drive the two clamping blocks to move closer to the airfoil body so as to abut against the upper and lower walls of the airfoil body respectively. A negative pressure chamber is provided inside the clamping block. A vacuuming mechanism is connected to the outside of the negative pressure chamber. The negative pressure chamber is connected to the airfoil body. An elastic pad is fixedly installed on the side of the clamping block near the airfoil body.

[0009] Furthermore, a grinding rod and a drive mechanism for driving the grinding rod to rotate are rotatably mounted on the mounting bracket. The grinding rod is located behind the cutting path of the cutting blade and abuts against the airfoil body.

[0010] Furthermore, the grinding rod rotates counterclockwise so that the material splashed during the grinding process splashes in the opposite direction to the path of the cutting blade.

[0011] Furthermore, an arc-shaped protective sleeve is provided between the grinding rod and the cutting blade. The protective sleeve surrounds the grinding rod, and the anti-slip sleeve is provided with a notch to allow the grinding rod to abut against the airfoil body.

[0012] Furthermore, the clamping cylinder is equipped with two grippers, both of which are serrated, and the serrations of the two grippers are staggered.

[0013] The beneficial effects of this invention are as follows:

[0014] This invention uses a spring to stretch the flexible tail edge in the clamping state by the clamping cylinder, so that the flexible tail edge is in a taut state, which facilitates the cutting of the flexible tail edge. During the cutting process, the gap between the cut flexible tail edge and the airfoil body increases under the action of the spring, which makes it easier for the cutting blade to cut along the path, so that the cut-off part is removed from the cutting blade, and the flexible tail edge is prevented from affecting the movement of the cutting blade due to its flexibility.

[0015] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0018] Figure 2 This is a side sectional view of an embodiment of the present invention;

[0019] Figure 3 Embodiments of the present invention Figure 2 A magnified view of part A in the middle;

[0020] Figure 4 This is a schematic diagram illustrating the installation of the grinding rod and cutting blade according to an embodiment of the present invention.

[0021] The following components are labeled in the attached diagram: bracket 1, airfoil body 101, flexible trailing edge 102, slide groove 103, clamping block 104, negative pressure chamber 105, clamping mechanism 2, clamping cylinder 201, driving cylinder 202, fixing block 203, spring 204, gripper 205, guide rail 3, mounting bracket 4, grinding rod 401, protective sleeve 402, and cutting blade 5. Detailed Implementation

[0022] like Figures 1-4As shown, the present invention provides a decommissioned wind turbine blade dismantling device with self-optimizing shape-finding function, comprising: a support 1, wherein the support 1 is provided with a support position for supporting and fixing the airfoil body 101 and a clamping mechanism 2 for clamping the flexible trailing edge 102, a guide rail 3 is provided on the support 1, the movement path of the guide rail 3 is consistent with the connection between the airfoil body 101 and the flexible trailing edge 102, a mounting frame 4 capable of moving along the guide rail 3 is mounted on the guide rail 3, and a cutting blade 5 is mounted on the mounting frame 4, the clamping mechanism 2 including Multiple clamping assemblies are arranged along the extension direction of the flexible trailing edge 102. Each clamping assembly includes a clamping cylinder 201 that is radially slidably mounted on a bracket 1 along the flexible trailing edge 102, and a drive cylinder 202 that is fixedly mounted on the bracket 1 for pushing the clamping cylinder 201. The bracket 1 is provided with multiple sliding grooves 103 that correspond one-to-one with the clamping cylinder 201. A fixing block 203 extending into the sliding groove 103 is fixedly connected to the clamping cylinder 201. A spring 204 is fixedly connected between the fixing block 203 and the inner wall of the sliding groove 103.

[0023] In this scheme, when cutting the flexible trailing edge 102, after the airfoil body 101 is fixedly installed in the support position, all the drive cylinders 202 are activated, so that the output end of the drive cylinder 202 pushes the clamping cylinder 201 to move to the flexible trailing edge 102. Then, the clamping cylinder 201 is activated to clamp the flexible trailing edge 102, and then the output end of the drive cylinder 202 is returned to its original position, so that the clamping cylinder 201 stretches the flexible trailing edge 102 under the elastic force of the spring 204. Then, the cutting blade 5 cuts the connection between the airfoil body 101 and the flexible trailing edge 102 along the guide rail 3.

[0024] This solution uses a spring 204 to stretch the flexible tail edge 102 in the clamping state by the clamping cylinder 201, so that the flexible tail edge 102 is in a taut state, which facilitates the cutting of the flexible tail edge 102. During the cutting process, the gap between the cut flexible tail edge 102 and the airfoil body 101 increases under the action of the spring 204, which makes it easier for the cutting blade 5 to cut along the path, so that the cut-off part is removed from the cutting blade 5, and the cut-off flexible tail edge 102 does not affect the movement of the cutting blade 5 due to its flexibility.

[0025] In one embodiment of the present invention, the clamping cylinder 201 is provided with two grippers 205, both of which are serrated and the serrations of the two grippers 205 are staggered. This is to improve the clamping force on the flexible tail edge 102 and prevent the grippers 205 from disengaging from the flexible tail edge 102 due to the elastic action of the spring 204.

[0026] In one embodiment of the present invention, a grinding rod 401 and a driving mechanism (not shown in the figure) for driving the grinding rod 401 to rotate are rotatably mounted on the mounting bracket 4. The grinding rod 401 is located behind the cutting path of the cutting blade 5. The grinding rod 401 abuts against the airfoil body 101 so that after the cutting blade 5 cuts the flexible trailing edge 102, the cutting surface of the airfoil body 101 is ground by the grinding rod 401, so that the adhesive adhering to the airfoil body 101 is removed. The grinding rod 401 rotates counterclockwise so that the material splashed during the grinding process splashes in the opposite direction to the travel path of the cutting blade 5, so as to avoid the splashed material affecting the cutting blade 5's cutting of the flexible trailing edge 102.

[0027] In one embodiment of the present invention, an arc-shaped protective sleeve 402 is provided between the grinding rod 401 and the cutting blade 5. The protective sleeve 402 is arranged around the grinding rod 401, and a notch is provided on the protective sleeve 402 to allow the grinding rod 401 to abut against the wing-shaped body 101.

[0028] In this solution, the protective sleeve 402 can abut against the cut flexible tail edge 102, and at the same time protect the material splashed during the grinding process, preventing the splashed material from adhering to the flexible tail edge 102.

[0029] In one embodiment of the present invention, the bracket 1 is provided with a negative pressure mechanism for fixing the airfoil body 101. The negative pressure mechanism includes two clamping blocks 104 installed on the side of the airfoil body 101 near the flexible trailing edge 102. A linear cylinder (not shown in the figure) for outputting linear motion is fixedly installed on the side of the clamping blocks 104 away from the airfoil body 101. The linear cylinder can drive the two clamping blocks 104 to move closer to the airfoil body 101 so as to abut against the upper and lower walls of the airfoil body 101 respectively. A negative pressure cavity 105 is provided inside the clamping block 104. A vacuuming mechanism is connected to the outside of the negative pressure cavity 105. The negative pressure cavity 105 is connected to the airfoil body 101. An elastic pad is fixedly installed on the side of the clamping block 104 near the airfoil body 101.

[0030] In this solution, after the airfoil body 101 is placed on the support 1, the clamping block 104 is moved closer to the airfoil body 101 by a linear cylinder, so that the two clamping blocks 104 abut against the upper and lower walls of the airfoil body 101 respectively. Then, the vacuum mechanism is activated to extract the air from the negative pressure chamber 105, so that the elastic pad on the clamping block 104 is more tightly attached to the airfoil body 101. Since the airfoil body 101 of the wind turbine blade is annular and hollow inside, and the connection between the airfoil body 101 and the flexible trailing edge 102 of some wind turbine blades is glued, that is, the upper and lower walls of the airfoil body 101 are fixed by the flexible trailing edge 102, after the flexible trailing edge 102 is cut, the upper and lower walls of the airfoil body 101 will deform due to the loss of the connection of the flexible trailing edge 102. To address this problem, this solution... By setting the clamping block 104, the solution can ensure the stability of the airfoil body 101 during the cutting process and prevent the upper and lower walls of the airfoil body 101 from deforming away from each other after cutting. At the same time, after the vacuuming mechanism evacuates the negative pressure chamber 105, the upper and lower walls of the airfoil body 101 are kept against the clamping block 104, preventing the upper and lower walls of the airfoil body 101 from deforming close to each other after cutting, thereby ensuring the stability of the cut surface of the airfoil body 101 during the cutting process.

[0031] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A decommissioned wind turbine blade dismantling device with self-optimizing shape-finding function, comprising a support frame, characterized in that: The bracket is provided with a support position for supporting and fixing the airfoil body and a clamping mechanism for clamping the flexible trailing edge. The bracket is provided with a guide rail, the movement path of which is consistent with the connection between the airfoil body and the flexible trailing edge. A mounting bracket that can move along the guide rail is mounted on the guide rail, and a cutting blade is mounted on the mounting bracket. The clamping mechanism includes multiple clamping components arranged along the extension direction of the flexible trailing edge. Each clamping component includes a clamping cylinder that is radially slidably mounted on the bracket along the flexible trailing edge, and a drive cylinder that is fixedly mounted on the bracket for pushing the clamping cylinder to move linearly. The bracket is provided with multiple sliding grooves that correspond one-to-one with the clamping cylinders. A fixing block extending into the sliding groove is fixedly connected to the clamping cylinder, and a spring is fixedly connected between the fixing block and the inner wall of the sliding groove. When cutting the flexible trailing edge, after the airfoil body is fixedly installed in the support position, the drive cylinder is activated to push the clamping cylinder to move to the flexible trailing edge. Then, the clamping cylinder is activated again to clamp the flexible trailing edge. After that, the drive cylinder is returned to its original position so that the clamping cylinder stretches the flexible trailing edge under the elastic force of the spring. Then, the cutting blade is activated and the mounting bracket is moved along the guide rail so that the cutting blade cuts the connection between the airfoil body and the flexible trailing edge.

2. The decommissioned wind turbine blade dismantling device with self-optimizing shape-finding function according to claim 1, characterized in that: The bracket is equipped with a negative pressure mechanism for fixing the airfoil body. The negative pressure mechanism includes two clamping blocks installed on the side of the airfoil body near the flexible trailing edge. A linear cylinder for outputting linear motion is fixedly installed on the side of the clamping blocks away from the airfoil body. The linear cylinder can drive the two clamping blocks to move closer to the airfoil body so as to abut against the upper and lower walls of the airfoil body respectively. A negative pressure chamber is provided inside the clamping block. A vacuuming mechanism is connected to the outside of the negative pressure chamber. The negative pressure chamber is connected to the airfoil body. An elastic pad is fixedly installed on the side of the clamping block near the airfoil body.

3. The decommissioned wind turbine blade dismantling device with self-optimizing shape-finding function according to claim 2, characterized in that: A grinding rod and a drive mechanism for driving the grinding rod to rotate are rotatably mounted on the mounting bracket. The grinding rod is located behind the cutting path of the cutting blade and abuts against the airfoil body.

4. The decommissioned wind turbine blade dismantling device with self-optimizing shape-finding function according to claim 3, characterized in that: The grinding rod rotates counterclockwise so that the material splashed during the grinding process splashes in the opposite direction to the path of the cutting blade.

5. The decommissioned wind turbine blade dismantling device with self-optimizing shape-finding function according to claim 4, characterized in that: An arc-shaped protective sleeve is provided between the grinding rod and the cutting blade. The protective sleeve surrounds the grinding rod and has a notch on it to allow the grinding rod to abut against the airfoil body.

6. The decommissioned wind turbine blade dismantling device with self-optimizing shape-finding function according to claim 5, characterized in that: The clamping cylinder is equipped with two grippers, both of which are serrated and the serrations of the two grippers are staggered.

Images