Wind turbine generator blade repairing device

Abstract

The utility model discloses a wind turbine generator blade repairing device which comprises a supporting frame, a fixing frame and a first threaded rod. Rollers are arranged at the bottom of the support frame; the fixing frame is arranged at the top of the supporting frame, and a clamping plate is slidably connected to the inner side of the fixing frame; the output end of the linear executing mechanism drives the supporting rod, the positioning block, the clamping plate and the flexible plate to move in the groove of the fixing frame, and after the flexible plate makes contact with the surface of the wind turbine generator blade, the clamping plate and the flexible plate can be used in cooperation to fix the wind turbine generator blade. When the blade of the wind turbine generator is repaired, the blade of the wind turbine generator can be better fixed; a third threaded rod is driven to rotate through a rotating disc, and due to the fact that an external thread on the surface of the third threaded rod is matched and screwed with an internal thread in the rotating disc, the third threaded rod can drive a positioning disc to move downwards, the positioning disc descends to be supported on the ground, and a supporting frame is kept in a stable state.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power equipment maintenance, in particular to a wind turbine blade repair device. Background Art

[0002] At present, wind turbines are equipment that can convert wind energy into mechanical energy, and then mechanical energy into electrical energy. As fossil energy is increasingly scarce and environmental problems are becoming increasingly severe, wind energy, as a clean, renewable natural energy source, is increasingly valued and widely used by countries. Blades are the core components of wind turbines that convert natural wind energy into mechanical energy. Blades will inevitably have some wear, scratches or dirt during use, and need to be repaired. Ground operations are one of the main ways to repair blades. Damaged blades are hoisted to the ground by large cranes, and the damaged areas of the blades are repaired on the ground.

[0003] In the related technology, a solution of a wind turbine blade repair device (Announcement No.: CN220312359U) was found through searching. When in use, by setting up a base frame, a support frame, a workbench and a drive component, it is convenient for workers to repair different parts of the blade, reducing the process of scaffolding installation and disassembly, and improving the convenience of blade maintenance; by setting the support frame and the base frame to slide together and positioning them through a positioning assembly, it is convenient to support blades of different lengths, thereby facilitating the repair of blades of different length specifications.

[0004] However, the wind turbine blades can be repaired by placing them in the supporting grooves. However, since the wind turbine blades are not clamped and fixed when they are placed, the wind turbine blades may be displaced inside the supporting grooves when they are repaired, resulting in the wind turbine blades being not fixed stably enough, thus affecting the repair of the wind turbine blades and being inconvenient to use. In view of this, we introduce a wind turbine blade repair device. Utility Model Content

[0005] The utility model aims to provide a wind turbine blade repair device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wind turbine blade repair device, comprising: a support frame, a fixing frame and a positioning groove;

[0007] A roller is provided at the bottom of the support frame, and the roller is connected to the support frame by bolts;

[0008] The fixing frame is arranged on the top of the supporting frame, the fixing frame and the supporting frame are welded, and a clamping plate is slidably connected to the inner side of the fixing frame;

[0009] The positioning grooves are arranged inside the clamping plate, and there are two groups of positioning grooves, and infrared sensors are respectively arranged inside the two groups of positioning grooves;

[0010] A fixing mechanism is arranged on one side of the fixing frame, and a linear actuator of the fixing mechanism drives the support rod to move, so that the support rod drives the clamping plate to move.

[0011] The fixing mechanism includes a positioning block connected to one end of a support rod, the support rod and the positioning block are fixedly arranged, the linear actuator is connected to one side of the fixing frame, the support rod is connected to the output end of the linear actuator, and the positioning block is fixedly connected to the clamping plate.

[0012] A support plate for supporting the linear actuator is connected to one side of the fixing frame, and the support plate is fixedly connected to the fixing frame.

[0013] The surface of the clamping plate is connected with a flexible plate, and the provision of the flexible plate can protect the blades of the wind turbine.

[0014] Preferably, a positioning frame is connected to the surface of the support frame, and the positioning frame and the support frame are welded, a third threaded rod is screwed inside the positioning frame, the top of the third threaded rod passes through the positioning frame and is connected to a turntable, the turntable and the third threaded rod are welded, the bottom of the third threaded rod passes through the positioning frame and is connected to a positioning plate, and the positioning plate and the third threaded rod are welded, and the turntable is shaken to allow the turntable to drive the third threaded rod to rotate, and since the external thread on the surface of the third threaded rod matches and screws with the internal thread inside the turntable, the third threaded rod can drive the positioning plate to move downward.

[0015] Preferably, the bottom of the roller is connected to a concave bottom frame, and the roller is slidably connected inside the concave bottom frame. A groove is provided on the surface of the concave bottom frame, and the groove facilitates the sliding connection of the roller.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) The output end of the linear actuator drives the support rod, the positioning block, the clamping plate and the flexible plate to move in the groove of the fixing frame, and the infrared radiation emitted by the infrared sensor inside the positioning groove is used to measure the distance of the wind turbine blades, thereby avoiding excessive clamping of the wind turbine blades. After the flexible plate contacts the surface of the wind turbine blades, the clamping plate and the flexible plate can be used together to fix the wind turbine blades. When repairing the wind turbine blades, the wind turbine blades can be better fixed to avoid unstable fixation during the repair process;

[0018] (2) The roller can be used to drive the support frame and the fixing frame to move to different positions, and then wind turbine blades of different lengths can be placed. Then, the turntable is shaken to allow the turntable to drive the third threaded rod to rotate. Since the external thread on the surface of the third threaded rod is matched with the internal thread inside the turntable, the third threaded rod can drive the positioning plate to move downward, allowing the positioning plate to descend and support on the ground, so that the support frame remains in a stable state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the fixed frame of the utility model in a front section;

[0021] Figure 3 For this utility model Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0022] In the figure: 1. concave bottom frame; 2. support frame; 3. positioning frame; 4. turntable; 5. positioning plate; 6. third threaded rod; 7. roller; 8. fixing frame; 9. clamping plate; 10. flexible plate; 11. positioning groove; 12. infrared sensor or pressure sensor; 13. linear actuator; 14. support plate; 15. support rod; 16. positioning block; 17. rope. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3The utility model provides a technical solution: a wind turbine blade repair device, comprising: a support frame 2, a roller 7 is arranged at the bottom of the support frame 2, and the roller 7 is connected to the support frame 2 by bolts;

[0025] A fixing frame 8, wherein the fixing frame 8 is arranged on the top of the supporting frame 2, the fixing frame 8 and the supporting frame 2 are welded, and a clamping plate 9 is slidably connected to the inner side of the fixing frame 8;

[0026] Positioning grooves 11, the positioning grooves 11 are provided inside the clamping plate 9, and there are two groups of positioning grooves 11, and infrared sensors 12 are respectively provided inside the two groups of positioning grooves 11, and the infrared sensors 12 are convenient for measuring the moving distance of the clamping plate 9;

[0027] A fixing mechanism is disposed on one side of the fixing frame 8 , and a linear actuator 13 of the fixing mechanism drives the support rod 15 to move, so that the support rod 15 drives the clamping plate 9 to move.

[0028] The fixing mechanism includes a positioning block 16 connected to one end of a support rod 15 , the linear actuator 13 is connected to one side of the fixing frame 8 , the support rod 15 is connected to the output end of the linear actuator 13 , and the positioning block 16 is fixedly connected to the clamping plate 9 .

[0029] A support plate 14 for supporting the linear actuator 13 is connected to one side of the fixing frame 8 .

[0030] A flexible plate 10 is connected to the surface of the clamping plate 9 .

[0031] The surface of the support frame 2 is connected to a positioning frame 3, and the positioning frame 3 and the support frame 2 are welded. The interior of the positioning frame 3 is screwed with a third threaded rod 6, and the top of the third threaded rod 6 passes through the positioning frame 3 and is connected to a turntable 4, and the turntable 4 and the third threaded rod 6 are welded. The bottom of the third threaded rod 6 passes through the positioning frame 3 and is connected to a positioning plate 5, and the positioning plate 5 and the third threaded rod 6 are welded. Shake the turntable 4 to allow the turntable 4 to drive the third threaded rod 6 to rotate, and since the external thread on the surface of the third threaded rod 6 matches and screws with the internal thread inside the turntable 4, the third threaded rod 6 can drive the positioning plate 5 to move downward.

[0032] The bottom of the roller 7 is connected to a concave bottom frame 1, and the roller 7 is slidably connected inside the concave bottom frame 1. A groove is provided on the surface of the concave bottom frame 1, and the groove facilitates the sliding connection of the roller 7.

[0033] Specifically, when in use, the roller 7 at the bottom of the support frame 2 is moved inside the concave bottom frame 1, so that the roller 7 can drive the support frame 2 and the fixing frame 8 to move to different positions, and then the wind turbine blades of different lengths can be placed, and then the turntable 4 is shaken to make the turntable 4 drive the third threaded rod 6 to rotate. Since the external thread on the surface of the third threaded rod 6 is matched and screwed with the internal thread inside the turntable 4, the third threaded rod 6 can drive the positioning plate 5 to move downward, so that the positioning plate 5 is lowered and supported on the ground, so that the support frame 2 remains in a stable state;

[0034] Next, the wind turbine blade is placed inside the fixing frame 8, and then the linear actuator 13 is started, so that the output end of the linear actuator 13 drives the support rod 15, the positioning block 16, the clamping plate 9 and the flexible plate 10 to move in the groove of the fixing frame 8, and the infrared radiation emitted by the infrared sensor or the pressure sensor 12 inside the positioning groove 11 is used to measure the distance of the wind turbine blade (for example, when the surface of the flexible plate 10 contacts the surface of the wind turbine blade, a control signal is generated, which is then transmitted to the external control system, and the external control system is used to control the distance of the wind turbine blade). Control the start and stop of the linear actuator 13) or control the start and stop of the linear actuator 13 according to the clamping pressure on the wind turbine blades, thereby avoiding excessive clamping of the wind turbine blades. After the flexible plate 10 contacts the surface of the wind turbine blades, the surface of the wind turbine blades can be protected. The wind turbine blades can also be fixed by using the clamping plate 9 and the flexible plate 10. When repairing the wind turbine blades, the wind turbine blades can be better fixed to avoid unstable fixation during the repair process.

[0035] The linear actuator 13 can adopt an electric push rod, a hydraulic push rod or a pneumatic push rod, etc. The infrared sensor or pressure sensor 12 and the control system can control the linear actuator 13 using the existing Siemens S-1200 PLC control system or the STM32 single-chip microcomputer control system. This control is an existing mature technology and will not be repeated here.

[0036] In the present invention, the flexible plate 10 can be made of rubber plate, silicone plate, etc. The positioning groove 11 can be located in the middle of the clamping plate 9, and the corresponding plate 10 also has an opening, so as to facilitate the infrared sensor or pressure sensor 12 to monitor and warn. The inner wall of the fixing frame 8 opposite to the clamping plate 9 also has a flexible plate 10, and the shape of the flexible plate 10 can be flexibly adapted according to the shape of the clamped wind turbine blades. For example, when the wind turbine blades are placed horizontally, the blades at the bottom are thicker than those at the top. Figure 2As shown, the upper part of the flexible plate 10 is more protruding than the bottom part, so that the wind turbine blade can be stabilized and firmly clamped. The flexible plate 10 is tied to the fixing frame 8 and the clamping plate 9 by ropes 17 (preferably 3 ropes, respectively located at the upper, middle and lower positions), so that it is easy to replace according to the shape of the wind turbine blade.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine blade repair device, characterized in that: include: A support frame (2), wherein a roller (7) is provided at the bottom of the support frame (2); A fixing frame (8), the fixing frame (8) being arranged on the top of the supporting frame (2), and a clamping plate (9) being slidably connected to the inner side of the fixing frame (8); Positioning grooves (11), the positioning grooves (11) being arranged inside the clamping plate (9), and the number of the positioning grooves (11) being two groups, and infrared sensors (12) being arranged inside the two groups of positioning grooves (11); A fixing mechanism is provided on one side of the fixing frame (8), and a linear actuator (13) of the fixing mechanism drives the support rod (15) to move, so that the support rod (15) drives the clamping plate (9) to move.

2. A wind turbine blade repair device according to claim 1, characterized in that: The fixing mechanism comprises a positioning block (16) connected to one end of a support rod (15), the linear actuator (13) is connected to one side of a fixing frame (8), the support rod (15) is connected to an output end of the linear actuator (13), and the positioning block (16) is fixedly connected to a clamping plate (9).

3. A wind turbine blade repair device according to claim 2, characterized in that: A support plate (14) for supporting a linear actuator (13) is connected to one side of the fixing frame (8).

4. A wind turbine blade repair device according to claim 1, characterized in that: A flexible plate (10) is connected to the surface of the clamping plate (9).

5. A wind turbine blade repair device according to claim 1, characterized in that: The surface of the support frame (2) is connected to a positioning frame (3), the interior of the positioning frame (3) is threadedly connected to a third threaded rod (6), the top of the third threaded rod (6) passes through the positioning frame (3) and is then connected to a rotating disk (4), and the bottom of the third threaded rod (6) passes through the positioning frame (3) and is then connected to a positioning disk (5).

6. A wind turbine blade repair device according to claim 1, characterized in that: The bottom of the roller (7) is connected to a concave bottom frame (1), and the roller (7) is slidably connected inside the concave bottom frame (1).

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