Auxiliary device for detecting surface cracks of wind power blade

Abstract

The utility model relates to the technical field of wind power blade detection equipment, in particular to a wind power blade surface crack detection auxiliary device which comprises a bottom plate and a fixed cylinder, two sides of the fixed cylinder are fixedly connected with supporting frames, a cross beam is fixedly connected between the bottom ends of the supporting frames, and the bottom of each supporting frame is fixedly connected with a top plate. The bottom of the top plate is fixedly connected with the top of the bottom plate through a telescopic arm, a telescopic cylinder is further fixedly connected between the top plate and the bottom plate, a main shaft is rotationally connected into the fixing barrel in a penetrating mode, one end of the main shaft is in transmission connection with the output end of the motor, and the other end of the main shaft is fixedly connected with a supporting roller; the height of the supporting rollers can be freely adjusted through the cooperation of the telescopic arms and the telescopic cylinders between the top plate and the bottom plate, the two auxiliary devices are used in a left-right cooperation mode, then supporting of blade roots, shells and other parts is achieved, and compared with a traditional gantry crane for detection after hoisting, the device is not affected by sites and is higher in efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine blade detection equipment, in particular to a wind turbine blade surface crack detection auxiliary device. Background Art

[0002] Wind turbine blades are key components in wind turbines that capture wind energy and convert it into mechanical energy. When wind blows towards the blades, the rotation of the blades drives the wind wheel to rotate, thereby converting wind energy into mechanical energy, and then into electrical energy through the generator. The development of wind turbine blades has evolved from wooden blades, metal blades to composite blades. Modern wind turbine blades are mainly composed of matrix resins, reinforcement materials, sandwich materials, etc. These materials have the advantages of high strength, light weight, and corrosion resistance, and can meet the material performance requirements of large wind turbine blades. The manufacturing process of wind turbine blades includes vacuum infusion molding process, prefabrication, and heat treatment. The impregnation material laying process, etc., will inevitably produce slight bubbles during the infusion process, and there is also a hidden danger of cracking in the subsequent process. Therefore, after the initial infusion manufacturing is completed, the blade root, shell and other parts need to be tested for cracks, bubbles, etc., and assembled after passing the test to ensure the safety of subsequent operation. At present, the inspection is carried out by lifting the part to be inspected by a gantry crane, and then using an electric telescopic rod with a detection head for inspection. Since the inspection process is slow, and this inspection method is affected by the site, the gantry crane is a rigid demand, resulting in low inspection efficiency. Therefore, it is necessary to invent an auxiliary equipment for crack detection. Utility Model Content

[0003] In view of the above technical problems, the utility model provides an auxiliary device for detecting surface cracks of wind turbine blades that can be adapted to various sites.

[0004] In order to solve the above technical problems, the utility model provides an auxiliary device for detecting cracks on the surface of a wind turbine blade, including a base plate and a fixed cylinder. The bottom of the base plate is fixedly connected to a universal wheel, and both sides of the support cylinder are fixedly connected to a support frame. A crossbeam is fixedly connected between the bottom ends of the support frames, and the bottom of the support frame is fixedly connected to a top plate. The bottom of the top plate is fixedly connected to the top of the base plate through a telescopic arm. A telescopic cylinder is also fixedly connected between the top plate and the base plate. A controller is also fixedly connected to the top plate. A motor is fixedly connected to the crossbeam, and the motor, telescopic cylinder, and universal wheel are controlled by the controller. A main shaft is rotatably connected through the fixed cylinder, and one end of the main shaft is transmission-connected to the output end of the motor, and the other end of the main shaft is fixedly connected to a support roller.

[0005] Furthermore, a reinforcement plate is fixedly connected to the bottom of the telescopic arm, and a reinforcement rod is fixedly connected to the bottom plate.

[0006] Furthermore, the telescopic cylinder is one of an electric telescopic cylinder and a hydraulic telescopic cylinder.

[0007] Furthermore, there are at least two telescopic cylinders.

[0008] Compared with the prior art, the present invention has the following advantages:

[0009] 1. The utility model can freely adjust the height of the support roller through the cooperation of the telescopic arm and the telescopic cylinder between the top plate and the bottom plate. The two auxiliary devices are used in coordination with each other on the left and right sides to support the blade root, shell and other parts, so that the detection probe can perform all-round detection of the blade. Compared with the traditional gantry crane lifting and detection, this device is not affected by the site and is more efficient.

[0010] 2. The utility model drives the rotation of the support roller by the motor, which can achieve fine adjustment of the blade posture, making the detection work more convenient and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model.

[0012] In the figure: 1. bottom plate, 2. top plate, 3. crossbeam, 4. support frame, 5. fixed cylinder, 6. support roller, 7. universal wheel, 8. telescopic cylinder, 9. controller, 10. motor, 11. main shaft, 12. reinforcement rod, 13. reinforcement plate, 14. telescopic arm. DETAILED DESCRIPTION

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] like Figure 1 The shown auxiliary device for detecting cracks on the surface of a wind turbine blade includes a base plate 1 and a fixed cylinder 5. Two universal wheels 7 are fixedly connected to the bottom of the base plate 1. Support frames 4 are fixedly connected on both sides of the support cylinder 5. A crossbeam 3 is fixedly connected between the bottom ends of the support frames 4. A top plate 2 is fixedly connected to the bottom of the support frame 4. The bottom of the top plate 2 is fixedly connected to the top of the base plate 1 through a telescopic arm 14. Two telescopic cylinders 8 are also fixedly connected between the top plate 2 and the base plate 1. A controller 9 is also fixedly connected to the top plate 2. A motor 10 is fixedly connected to the crossbeam 3. The motor 10, the telescopic cylinder 8, and the universal wheel 7 are controlled by the controller 9. A main shaft 11 is rotatably connected to the fixed cylinder 5 through a bearing. One end of the main shaft 11 is transmission-connected to the output end of the motor 10 in the form of a sprocket chain, and the other end of the main shaft 11 is fixedly connected to a support roller 6.

[0015] In order to increase the carrying capacity of the device, a reinforcement plate 13 is fixedly connected to the bottom of the telescopic arm 14, and a reinforcement rod 12 is fixedly connected to the bottom plate 1, which further ensures safety during operation.

[0016] In order to ensure that the blade roots, housing and other parts can be stably lifted and lowered and to facilitate control, the telescopic cylinder 8 is an electric telescopic cylinder or a hydraulic telescopic cylinder.

[0017] To ensure the lifting capacity of the device, there are at least two telescopic cylinders 8. In this embodiment, four telescopic cylinders 8 are adopted.

[0018] It should be noted that: in order to support the blade root or the housing during detection, two of these auxiliary devices need to be used in cooperation, moving to support both sides of the blade root or the housing respectively to achieve the support effect.

[0019] The working process of this embodiment is as follows:

[0020] The auxiliary device is controlled by the controller 9 to move to one side of the blade root or the housing to be detected. Subsequently, another auxiliary device is moved to the other side of the blade root or the housing in the same way. Then, the telescopic cylinders 8 are controlled by the controller 9 to descend, so that the top of the support roller 6 is lower than the top of the blade root or the housing. Subsequently, the auxiliary devices are controlled by the controller 9 to move towards each other until the support roller 6 moves into the blade root or the housing. Then, the telescopic cylinders 8 are continuously controlled by the controller 9 to rise until the entire blade root or the housing is supported, and the crack detection work can begin. If there are detection parts that the probe cannot reach, the motor 10 can be controlled by the controller 9 to rotate. The motor 10 drives the main shaft 11 to rotate through the sprocket chain. Finally, the main shaft 11 drives the support roller 6 to rotate to achieve the effect of adjusting the blade attitude until the detection work of the blade root or the housing is completed. After completion, the telescopic cylinders 8 are controlled by the controller 9 to descend. When the blade root or the housing is placed stably, the auxiliary device 9 is continuously controlled by the controller 9 to move outwards, so that the auxiliary device can be separated from the blade root or the housing. Among them: the telescopic arm 14 plays a role in guiding and supporting.

Claims

1. An auxiliary device for detecting surface cracks of a wind turbine blade, comprising a bottom plate (1) and a fixed cylinder (5). The bottom of the bottom plate (1) is fixedly connected with universal wheels (7), and it is characterized in that: Both sides of the fixed cylinder (5) are fixedly connected with support frames (4). A cross beam (3) is fixedly connected between the bottoms of the support frames (4). The bottom of the support frames (4) is fixedly connected with a top plate (2). The bottom of the top plate (2) is fixedly connected with the top of the bottom plate (1) through a telescopic arm (14). A telescopic cylinder (8) is also fixedly connected between the top plate (2) and the bottom plate (1). A controller (9) is also fixedly connected to the top plate (2). A motor (10) is fixedly connected to the cross beam (3). The motor (10), the telescopic cylinder (8), and the universal wheels (7) are controlled by the controller (9). A main shaft (11) is rotatably connected through the fixed cylinder (5). One end of the main shaft (11) is in transmission connection with the output end of the motor (10). The other end of the main shaft (11) is fixedly connected with a support roller (6).

2. The auxiliary device for detecting surface cracks of a wind turbine blade according to claim 1, wherein: A reinforcing plate (13) is fixedly connected to the bottom of the telescopic arm (14). The bottom plate (1) is fixedly connected with a reinforcing rod (12).

3. The auxiliary device for detecting surface cracks of a wind turbine blade according to claim 1, characterized in that: The telescopic cylinder (8) is one of an electric telescopic cylinder and a hydraulic telescopic cylinder.

4. The auxiliary device for detecting surface cracks of a wind turbine blade according to claim 1 or 3, characterized in that: There are at least two telescopic cylinders (8).

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