A derusting device for a fan tower drum

Abstract

The utility model provides fan tower drum is used rust cleaning equipment relates to fan tower drum production field, including tower drum and drive tower drum removal and rotation's electric rail car, fan tower drum is used rust cleaning equipment, the outside of tower drum is provided with U type frame, when tower drum removal rust, the cylinder wall of tower drum is between the U type groove of U type frame, the opening end fixed mounting of U type frame has two spout opposite settings' sand blasting pipe, the outside fixed mounting of sand blasting pipe outside tower drum is provided with guide frame, when tower drum removal carries out sand blasting rust removal, guide frame is close -fitted tower drum's outside surface and slides, can make sand blasting pipe keep the sand blasting pressure of uniformity to fan tower drum through setting can follow the two groups of sand blasting pipe of fan tower drum surface taper movement, thereby improves the sand blasting rust removal effect to fan tower drum.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine tower production technology, specifically to rust removal equipment for wind turbine towers. Background Technology

[0002] Wind power generation refers to converting the kinetic energy of wind into mechanical kinetic energy, and then converting the mechanical energy into electrical kinetic energy. The wind turbine tower is the support structure of the wind turbine generator set, which mainly plays a supporting role and absorbs the vibration of the generator set.

[0003] Before being coated with anti-rust paint, newly manufactured towers have a large amount of rust on their inner and outer surfaces, which must be removed. Otherwise, it will directly affect the adhesion and lifespan of the subsequent anti-corrosion coating. During the sandblasting process of wind turbine towers, because the tower is not a standard cylinder but a variable diameter cylinder with a smaller top and a larger bottom, it has a certain taper. During the sandblasting process, the sandblasting distance of the fixed sandblasting pipe will change as the tower moves, resulting in uneven sandblasting distance and affecting the sandblasting effect on the tower. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a rust removal device for wind turbine towers. By setting two sets of sandblasting pipes that can move with the taper of the wind turbine tower surface, the sandblasting pipes can continuously maintain a uniform sandblasting pressure on the wind turbine tower, thereby improving the sandblasting and rust removal effect on the wind turbine tower and solving the problems mentioned in the background technology.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: including a tower and an electric railcar that drives the tower to move and rotate, a rust removal device for the wind turbine tower, a U-shaped frame set on the outside of the tower, when the tower moves to remove rust, the tower wall is between the U-shaped grooves of the U-shaped frame, two sandblasting pipes with opposite nozzles are fixedly installed at the open end of the U-shaped frame, and a guide frame is fixedly installed on the outside of the sandblasting pipes on the outside of the tower, when the tower moves to remove rust by sandblasting, the guide frame slides close to the outer surface of the tower.

[0007] Furthermore, the two arms of the U-shaped frame are parallel to each other, and the two sandblasting pipes can move back and forth on the U-shaped frame and the guide frame respectively to adjust the sandblasting distance.

[0008] Furthermore, several ball bearings are installed on the surface of the guide frame facing the tower.

[0009] Furthermore, an adjustment plate is fixedly installed on the outer side of the guide frame, and a circular toothed plate is provided at the other end of the adjustment plate. The circular toothed plate is embedded in the inner side of the rotating support and is rotatably connected to the inner side of the rotating support.

[0010] Furthermore, a screw is threadedly connected to the outer side of the rotating support, and the screw is rotatably connected to the inner side of the clamping plate. A rack that can mesh with the circular toothed plate is provided on the surface of the clamping plate facing the circular toothed plate.

[0011] Furthermore, an elastic telescopic rod is fixedly connected to the outside of the rotating support, and the other end of the elastic telescopic rod is fixedly connected to the lifting bracket. The bottom of the lifting bracket is slidably connected to the inside of the base through a motor and a lead screw.

[0012] Furthermore, a crossbar supporting the U-shaped frame is fixedly installed on the side of the lifting support away from the elastic telescopic rod. The crossbar is located at the bottom of the U-shaped frame, and the U-shaped frame can slide above the crossbar.

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

[0014] When sandblasting and rust removal is performed on the wind turbine tower, the guide frame can continuously press against the outer surface of the wind turbine tower under the push of the elastic telescopic rod. This keeps the distance between the two sandblasting pipes and the inner and outer surfaces of the wind turbine tower stable under the holding of the U-shaped frame. As a result, the sandblasting pipes can continuously sandblast and remove rust from the wind turbine tower at the appropriate sandblasting position, thus improving the rust removal effect on the wind turbine tower. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the U-shaped frame and the lifting support of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the U-shaped frame and the guide frame of this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the rotating support and the circular toothed plate of this utility model.

[0019] Among them, 1. Tower; 2. Electric railcar; 3. U-shaped frame; 4. Sandblasting pipe; 5. Guide frame; 6. Ball bearing; 7. Adjusting plate; 8. Circular toothed plate; 9. Rotary support; 10. Screw; 11. Clamping plate; 12. Elastic telescopic rod; 13. Lifting bracket; 14. Motor; 15. Lead screw; 16. Base; 17. Crossbar. Detailed Implementation

[0020] 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.

[0021] See Figures 1-4 The rust removal equipment for wind turbine towers includes a tower 1 and an electric railcar 2 that drives the tower 1 to move and rotate. A U-shaped frame 3 is provided on the outside of the tower 1. When the tower 1 moves for rust removal, the wall of the tower 1 is between the U-shaped grooves of the U-shaped frame 3. Two sandblasting pipes 4 with opposite nozzles are fixedly installed at the open end of the U-shaped frame 3. A guide frame 5 is fixedly installed on the outside of the sandblasting pipes 4 located on the outside of the tower 1. When the tower 1 moves for sandblasting and rust removal, the guide frame 5 slides close to the outer surface of the tower 1.

[0022] In this solution: During the sandblasting and rust removal process of the wind turbine tower 1, since the tower 1 is not a standard cylinder, but a variable diameter cylinder with a smaller top and a larger bottom, the tower 1 has a certain taper. During the sandblasting process, the tower 1 moves along the axial direction, and the sandblasting distance of the fixedly installed sandblasting pipe 4 will change with the movement of the tower 1. The sandblasting distance is not uniform, which causes the pressure of the sand sprayed by the sandblasting pipe 4 on the tower 1 to change, thus affecting the sandblasting and rust removal effect on the wind turbine tower 1.

[0023] With the U-shaped frame 3 and guide frame 5, the U-shaped frame 3 can install and fix the two sandblasting pipes 4, and keep the two sandblasting pipes 4 able to sandblast on the inner and outer surfaces of the tower 1 at the same time, improving work efficiency. When the guide frame 5 is attached to the surface of the tower 1, the guide frame 5 can keep parallel to the surface in contact with the tower 1, so that the support arm of the U-shaped frame 3 can also keep parallel to the left and right sides of the tower 1. Furthermore, the guide frame 5 can continuously abut against the surface of the tower 1 under the thrust of the elastic telescopic rod 12. When the tower 1 moves in the axial direction, the sandblasting pipes 4 can sandblast the inner and outer surfaces of the tower 1 at a stable distance, thereby improving the sandblasting and rust removal effect on the wind turbine tower 1.

[0024] The two arms of the U-shaped frame 3 are parallel to each other, and the two sandblasting pipes 4 can move back and forth on the U-shaped frame 3 and the guide frame 5 respectively to adjust the sandblasting distance.

[0025] In this embodiment, the U-shaped frame 3 with parallel arms can drive the two sandblasting pipes 4 to rotate simultaneously, adjusting the two sandblasting pipes 4 to the sandblasting position facing the surface of the tower 1. At the same time, when the U-shaped frame 3 and the left and right sides of the tower 1 are parallel and move along the wall of the tower 1, it can also prevent the tower wall of the tower 1 from colliding with the U-shaped frame 3. The two sandblasting pipes 4 can be freely adjusted on the U-shaped frame 3 and the guide frame 5, so that the position of the sandblasting pipes 4 can be freely adjusted according to the different wall thicknesses of the tower wall, so that the nozzle of the sandblasting pipe 4 is kept at a reasonable sandblasting distance from the tower wall, thus maintaining the sandblasting and rust removal effect of the sandblasting pipes 4.

[0026] Several ball bearings 6 are installed on the surface of the guide frame 5 facing the tower 1.

[0027] In this embodiment, when the ball bearing 6 contacts the tower 1, it can reduce the frictional resistance of the guide frame 5 on the tower 1, keep the guide frame 5 sliding smoothly on the surface of the tower 1, and improve the stability of the sandblasting pipe 4.

[0028] An adjustment plate 7 is fixedly installed on the outer side of the guide frame 5. A circular toothed plate 8 is provided at the other end of the adjustment plate 7. The circular toothed plate 8 is embedded in the inner side of the rotating support 9 and is rotatably connected to the inner side of the rotating support 9.

[0029] In this embodiment: the adjusting plate 7 can fix the guide frame 5 and the circular toothed plate 8 relative to each other. The circular toothed plate 8 can rotate inside the rotating support 9, so that the guide frame 5 can rotate and stick to the outer surface of the tower 1, which makes it easy to adjust the guide frame 5 to a position parallel to the wall of the tower 1.

[0030] The rotating support 9 is threadedly connected to a screw 10 on the outside. The screw 10 is rotatably connected to the inside of the clamping plate 11. The clamping plate 11 has a rack on its surface facing the circular toothed plate 8 that can mesh with the circular toothed plate 8.

[0031] In this embodiment: after the guide is in close contact with the outer surface of the tower 1, the screw 10 can be rotated. The screw 10 drives the clamping plate 11 to engage with the circular toothed plate 8, thereby fixing the angle of the circular toothed plate 8 within the adjusting plate 7, and thus fixing the angle of the guide frame 5. When the wind turbine tower 1 moves, the guide frame 5 can maintain an angle parallel to the wind turbine tower 1 and slide on the outside of the tower 1, maintaining the stability of the angle of the guide frame 5 on the wind turbine tower 1. It should be noted that the inner side of the rotating support 9 is provided with a groove to accommodate the clamping plate 11. When the screw 10 is rotated to drive the clamping plate 11 to move, the clamping plate 11 is slidably connected to the inner side of the rotating support 9.

[0032] An elastic telescopic rod 12 is fixedly connected to the outside of the rotating support 9. The other end of the elastic telescopic rod 12 is fixedly connected to the lifting bracket 13. The bottom of the lifting bracket 13 is slidably connected to the inside of the base 16 through the motor 14 and the lead screw 15.

[0033] In this embodiment: the elastic telescopic rod 12 can continuously push the guide frame 5 to stick to the tower 1 while the guide frame 5 slides along the outer surface of the tower 1, so that the two sandblasting pipes 4 are always sandblasting at the set sandblasting distance, thereby improving the sandblasting and rust removal effect of the sandblasting pipes 4. The lifting bracket 13 can drive the U-shaped frame 3 to move up and down to adjust the height, thereby adjusting the height of the guide frame 5 and the two sandblasting pipes 4. When the motor 14 runs and drives the lead screw 15 to rotate, it can drive the lifting bracket 13 to move closer to or away from the wind turbine tower 1, thereby driving the U-shaped frame 3 and the guide frame 5 to move closer to or away from the wind turbine tower 1. This makes it convenient to adjust the height and position of the sandblasting pipes 4 according to the wind turbine tower 1 of different sizes, improving the practicality of this device. It should be noted that when removing rust from the tower 1, it is necessary to use the lifting bracket 13 to raise the height of the two sandblasting pipes 4 to the same height as the axis of the tower 1 for rust removal.

[0034] A crossbar 17 supporting the U-shaped frame 3 is fixedly installed on the side of the lifting bracket 13 away from the elastic telescopic rod 12. The crossbar 17 is located at the bottom of the U-shaped frame 3 and the U-shaped frame 3 can slide above the crossbar 17.

[0035] In this embodiment, the crossbar 17 can support the end of the U-shaped frame 3 away from the sandblasting pipe 4, keeping the U-shaped frame 3 parallel to the ground, preventing the open end of the U-shaped frame 3 from being supported while the other end is not effectively supported, thus improving the stability of the U-shaped frame 3. It should be noted that since the taper of the tower 1 is not large, after the U-shaped frame 3 rotates with the taper of the tower 1, the crossbar 17 can effectively support the U-shaped frame 3 as long as it is on the rotation path of the U-shaped frame 3.

[0036] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rust removal device for wind turbine towers, comprising a tower (1) and an electric railcar (2) for driving the tower (1) to move and rotate, characterized in that: A U-shaped frame (3) is provided on the outside of the tower (1). When the tower (1) moves to remove rust, the wall of the tower (1) is between the U-shaped grooves of the U-shaped frame (3). Two sandblasting pipes (4) with opposite nozzles are fixedly installed at the open end of the U-shaped frame (3). A guide frame (5) is fixedly installed on the outside of the sandblasting pipe (4) on the outside of the tower (1). When the tower (1) moves to remove rust by sandblasting, the guide frame (5) slides close to the outer surface of the tower (1).

2. The rust removal equipment for wind turbine towers according to claim 1, characterized in that: The two arms of the U-shaped frame (3) are parallel to each other, and the two sandblasting pipes (4) can move back and forth on the U-shaped frame (3) and the guide frame (5) respectively to adjust the sandblasting distance.

3. The rust removal equipment for wind turbine towers according to claim 2, characterized in that: Several ball bearings (6) are installed on the surface of the guide frame (5) facing the tower (1).

4. The rust removal equipment for wind turbine towers according to claim 1, characterized in that: An adjustment plate (7) is fixedly installed on the outside of the guide frame (5). A circular toothed plate (8) is provided at the other end of the adjustment plate (7). The circular toothed plate (8) is embedded in the inside of the rotating support (9) and rotates within the rotating support (9).

5. The rust removal equipment for wind turbine towers according to claim 4, characterized in that: The rotating support (9) is threaded with a screw (10) on the outside. The screw (10) is rotatably connected to the inside of the clamping plate (11). The clamping plate (11) has a rack on the surface facing the circular toothed plate (8) that can mesh with the circular toothed plate (8).

6. The rust removal equipment for wind turbine towers according to claim 4 or 5, characterized in that: An elastic telescopic rod (12) is fixedly connected to the outside of the rotating support (9). The other end of the elastic telescopic rod (12) is fixedly connected to the lifting bracket (13). The bottom of the lifting bracket (13) is slidably connected to the inside of the base (16) through the motor (14) and the lead screw (15).

7. The rust removal equipment for wind turbine towers according to claim 6, characterized in that: A crossbar (17) supporting the U-shaped frame (3) is fixedly installed on the side of the lifting bracket (13) away from the elastic telescopic rod (12). The crossbar (17) is located at the bottom of the U-shaped frame (3) and the U-shaped frame (3) can slide above the crossbar (17).

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