Device facilitating paint spraying of wind turbine tower

Abstract

The utility model discloses a device facilitating paint spraying of a wind turbine tower, and relates to the technical field of wind turbine tower manufacturing, the device comprises fixing frames, the fixing frames are arranged at the two ends of the wind turbine tower correspondingly, and a plurality of positioning frames fixedly connected with the two ends of the wind turbine tower are arranged on the circumferences of the fixing frames; the end, away from the wind turbine tower, of the fixing frame is fixedly connected with a connecting disc, a roller frame is arranged below the connecting disc, rollers making contact with the circumferential side wall of the connecting disc are rotationally arranged at the two ends of the roller frame, and the roller frame is provided with a driving part for driving the rollers to rotate to drive the connecting disc to rotate. A positioning frame on a fixing frame is fixed to the side wall of a wind turbine tower, the circumferential side wall of a connecting disc on the side, away from the wind turbine tower, of the fixing frame makes contact with a roller, and a driving piece drives the roller to rotate to drive the connecting disc to rotate at the constant speed so that the wind turbine tower can start to rotate at the constant speed. And paint spraying equipment can uniformly spray the outer circumferential side wall of the wind turbine tower conveniently, and the spraying efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of wind turbine tower manufacturing technology, and in particular to a device that facilitates the painting of wind turbine towers. Background Technology

[0002] Wind turbine towers are the towers used for wind power generation. They mainly serve a supporting role in wind turbine generator sets and absorb vibrations from the generator set. Over time, wind turbine towers will be corroded, which will affect their service life. Therefore, it is necessary to spray paint on the outer wall of the tower to protect it.

[0003] During the tower manufacturing process, after the tower welding is completed, a series of post-treatments such as sandblasting and painting are required to ensure the tower's corrosion resistance. The traditional painting process involves manual spraying of the outer wall of the tower using spraying equipment.

[0004] Regarding the aforementioned technologies, the inventors believe that manual spraying of towers cannot achieve uniform coating on the outer wall of the tower, resulting in low efficiency. Utility Model Content

[0005] The purpose of this application is to provide a device that facilitates the painting of wind turbine towers, thereby improving the problem that manual painting of towers cannot achieve uniform coating of the outer wall, resulting in incomplete coating and low efficiency.

[0006] The device for facilitating the painting of wind turbine towers provided in this application adopts the following technical solution:

[0007] A device for facilitating the painting of wind turbine towers includes a fixing frame, which is respectively installed at both ends of the wind turbine tower. Several positioning frames are fixedly connected to both ends of the wind turbine tower around the circumference of the fixing frame. A connecting disc is fixedly connected to the end of the fixing frame away from the wind turbine tower. A roller frame is provided below the connecting disc. Rollers are rotatably installed at both ends of the roller frame, which contact the circumferential sidewalls of the connecting disc. The roller frame is provided with a driving component that drives the rollers to rotate and thus drives the connecting disc to rotate.

[0008] By adopting the above technical solution, the positioning frame on the fixed frame is fixed to the side wall of the wind turbine tower. The circumferential side wall of the connecting disc on the side of the fixed frame away from the wind turbine tower contacts the roller on the roller frame. The driving component drives the rollers located at both ends of the wind turbine tower to rotate, which in turn drives the connecting disc to rotate at a uniform speed, so that the wind turbine tower starts to rotate at a uniform speed. This facilitates the painting equipment to uniformly spray the outer circumferential side wall of the wind turbine tower, thereby improving the spraying efficiency.

[0009] Optionally, the positioning frame has a positioning hole on the side near the end of the wind turbine tower. The positioning hole corresponds to the threaded holes at both ends of the wind turbine tower. A bolt that is threaded into the positioning hole is inserted into the threaded hole, and the bolt fixes the positioning frame to the wind turbine tower.

[0010] By adopting the above technical solution, a positioning hole is opened on the side of the positioning frame near the end of the wind turbine tower. A bolt that is threaded into the positioning hole is inserted into the positioning hole to fix the positioning frame to the end side wall of the wind turbine tower, so as to minimize the obstruction of the outer circumferential side wall of the wind turbine tower and allow the outer circumferential side wall of the wind turbine to be completely painted.

[0011] Optionally, the positioning frame has a positioning groove on the side near the fixed frame that fits against the side wall of the fixed frame, and the side wall of the fixed frame has a fixing hole that penetrates the side wall of the positioning groove, and a bolt for fixing the positioning frame is provided in the fixing hole.

[0012] By adopting the above technical solution, a positioning groove is opened on the side of the positioning frame close to the fixed frame. The inner side wall of the positioning groove fits against the side wall of the fixed frame. A fixing hole is opened on the side wall of the fixed frame that penetrates the side wall of the positioning groove. The positioning frame is fixed to the fixed frame by bolt two. The positioning frame can be replaced by removing bolt two.

[0013] Optionally, a plurality of fixing holes are provided along the length of the fixing frame.

[0014] By adopting the above technical solution, several fixing holes are provided along the length of the fixing frame, which can adjust the installation position of the positioning frame and facilitate the fixing of wind turbine towers of different sizes.

[0015] Optionally, a connecting frame is fixedly connected to the side of the fixing frame near the connecting disc, and the connecting frame is fixedly connected to the side wall of the connecting disc.

[0016] By adopting the above technical solution, the connecting frame supports the fixed frame and the connecting disc, increasing the distance between the fixed frame and the connecting disc, and reducing the possibility of the fixed frame colliding with the roller frame when the connecting disc rotates on the roller of the roller frame.

[0017] Optionally, the fixing frame, connecting frame, and connecting disc are hollowed out.

[0018] By adopting the above technical solution, the fixing frame, connecting frame and connecting disc are hollowed out, which reduces the overall weight of the device and makes it easier to lift and transport it to the roller frame after fixing the fixing frame to both ends of the wind turbine tower.

[0019] Optionally, a stop is provided on the side of the roller frame away from the connecting disc, and the stop contacts the side of the connecting disc away from the wind turbine tower.

[0020] By adopting the above technical solution, the position of the connecting disc is restricted by the baffle, so as to avoid the connecting disc from shifting during rotation and causing the fixed frame to collide with the roller frame, thereby reducing the possibility of the wind turbine tower going out of stability during rotation.

[0021] Optionally, a roller is rotatably mounted on the side of the stop near the connecting disc.

[0022] By adopting the above technical solution, a roller is rotatably connected to the side of the retainer near the connecting disc via a rotating shaft. The circumferential sidewall of the roller abuts against the sidewall of the connecting disc. When the connecting disc rotates, the roller rotates together, reducing the friction between the connecting disc and the retainer, and making the wind turbine tower rotate smoothly.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The positioning frame on the fixed frame is fixed to the side wall of the wind turbine tower. The circumferential side wall of the connecting disc on the side of the fixed frame away from the wind turbine tower contacts the roller on the roller frame. The driving component drives the rollers located at both ends of the wind turbine tower to rotate, which in turn drives the connecting disc to rotate at a uniform speed, so that the wind turbine tower starts to rotate at a uniform speed. This facilitates the painting equipment to spray the outer circumferential side wall of the wind turbine tower evenly, reduces the possibility of incomplete spraying of the outer circumferential side wall of the wind turbine tower, and improves the spraying efficiency.

[0025] 2. Make a positioning hole on the side of the positioning frame near the end of the wind turbine tower, insert a bolt that is threaded into the positioning hole and fix the positioning frame to the end side wall of the wind turbine tower, so as to minimize the obstruction of the outer circumferential side wall of the wind turbine tower and allow the outer circumferential side wall of the wind turbine to be completely painted.

[0026] 3. The position of the connecting disc is restricted by the baffle to prevent the connecting disc from shifting during rotation and colliding with the fixed frame and roller frame. A roller is rotatably connected to the side of the baffle near the connecting disc via a rotating shaft. The circumferential side wall of the roller abuts against the side wall of the connecting disc. When the connecting disc rotates, the roller rotates together with it, reducing the friction between the connecting disc and the baffle during rotation and ensuring the smooth rotation of the wind turbine tower. Attached Figure Description

[0027] Figure 1 This is an overall schematic diagram of a device that facilitates painting of wind turbine towers;

[0028] Figure 2 This is a partial cross-sectional view of a device that facilitates painting of wind turbine towers.

[0029] In the diagram, 1. Fixing frame; 11. Fixing hole; 12. Bolt 2; 13. Connecting frame; 2. Wind turbine tower; 21. Threaded hole; 3. Positioning frame; 31. Positioning hole; 32. Bolt 1; 33. Positioning groove; 4. Connecting disc; 5. Roller frame; 51. Roller; 52. Driving component; 53. Stop frame; 54. Roller. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail below.

[0031] A device to facilitate painting of wind turbine towers, refer to Figure 1 The system includes a fixed frame 1, which is respectively installed at both ends of the wind turbine tower 2. Several positioning frames 3 are fixedly connected to both ends of the wind turbine tower 2 on the circumference of the fixed frame 1 near the wind turbine tower 2. In this embodiment, there are three positioning frames 3, evenly spaced apart. A connecting disc 4 is fixedly connected to the end of the fixed frame 1 away from the wind turbine tower 2. The fixed frame 1, positioning frames 3, and connecting disc 4 are all made of steel. A roller frame 5 is fixed to the ground below the connecting disc 4. The roller frame 5 is rotatably connected to steel rollers 51 at both ends via bearings and shafts. The circumferential sidewalls of the rollers are connected to the connecting disc 51. The connecting disc 4 contacts the circumferential sidewall. A drive component 52 is bolted to the roller frame 5. The drive component 52 is a drive motor electrically connected to the power supply. The drive end of the drive component 52 is engaged with the roller 51. The drive component 52 located at one end of the wind turbine tower 2 drives the roller 51 to rotate synchronously and uniformly in the forward direction. The drive component 52 located at the other end of the wind turbine tower 2 drives the roller 51 to rotate synchronously and uniformly in the reverse direction, thereby driving the connecting disc 4 to rotate uniformly and making the wind turbine tower 2 start to rotate uniformly in one direction. This facilitates the painting equipment to uniformly spray the outer circumferential sidewall of the wind turbine tower 2 and reduces the possibility of incomplete spraying of the outer circumferential sidewall of the wind turbine tower 2.

[0032] Reference Figure 1 and Figure 2 A positioning hole 31 is opened on the side of the positioning frame 3 near the end of the wind turbine tower 2. The positioning hole 31 corresponds to the threaded hole 21 at both ends of the wind turbine tower 2. A bolt 32 that is threaded to the threaded hole 21 is inserted into the positioning hole 31. The bolt 32 is a set bolt. The positioning frame 3 is fixed to the end side wall of the wind turbine tower 2, reducing the obstruction of the outer circumferential side wall of the wind turbine tower 2, so that the outer circumferential side wall of the wind turbine can be completely painted.

[0033] Reference Figure 1 and Figure 2A positioning groove 33 is provided on the side of the positioning frame 3 near the fixed frame 1. The inner side wall of the positioning groove 33 fits against the side wall of the fixed frame 1. A fixing hole 11 is provided on the side wall of the fixed frame 1, which penetrates the side wall of the positioning groove 33. A bolt 2 12 is inserted into the fixing hole 11. The bolt 2 12 is a fixing bolt. After the bolt 2 12 is inserted into the fixing hole 11, it is threadedly connected to the bolt 2 12 with a nut and a washer to fix the positioning frame 3 on the fixed frame 1. The positioning frame 3 can be replaced by removing the bolt 2 12. Several fixing holes 11 are provided along the length of the fixed frame 1, which can adjust the installation position of the positioning frame 3 and facilitate the fixing of wind turbine towers 2 of different sizes.

[0034] Reference Figure 1 A steel connecting frame 13 is welded to the side of the fixed frame 1 near the connecting disc 4. The connecting frame 13 is welded to the side wall of the connecting disc 4. The connecting frame 13 supports the fixed frame 1 and the connecting disc 4, increasing the distance between the fixed frame 1 and the connecting disc 4 and reducing the possibility of the fixed frame 1 colliding with the roller frame 5 when the connecting disc 4 rotates on the roller 51 of the roller frame 5. The fixed frame 1, the connecting frame 13 and the connecting disc 4 are hollowed out to reduce the overall weight of the device and make it easier to lift the fixed frame 1 onto the roller frame 5 after it is fixed to both ends of the wind turbine tower 2.

[0035] Reference Figure 1 A baffle 53 is bolted to the side of the roller frame 5 away from the connecting disc 4. The baffle 53 contacts the side of the connecting disc 4 away from the wind turbine tower 2, restricting the position of the connecting disc 4 and minimizing the risk of the fixed frame 1 colliding with the roller frame 5 when the connecting disc 4 rotates. A roller 54 is rotatably connected to the side of the baffle 53 near the connecting disc 4 via a rotating shaft. The circumferential side wall of the roller 54 abuts against the side wall of the connecting disc 4. When the connecting disc 4 rotates, the roller 54 rotates together, reducing the friction between the connecting disc 4 and the baffle 53 when the connecting disc 4 rotates.

[0036] The implementation principle of this application embodiment is as follows:

[0037] In actual operation, three positioning frames 3 are fixed to both ends of the wind turbine tower 2 with bolts 32, so that the fixing frame 1 is fixed together with the wind turbine tower 2. Then, the wind turbine tower 2 is lifted by a large lifting device and moved above the roller frame 5, so that the connecting disc 4 on the side of the fixing frame 1 away from the wind turbine tower 2 contacts the roller 51 on the roller frame 5, and the roller 54 on the baffle 53 abuts against the side wall of the connecting disc 4. Then, the roller frame 5 is started. The drive unit 52 on the wind turbine tower 2 drives the roller 51 to rotate synchronously and uniformly in the forward direction. The drive unit 52 on the other end of the wind turbine tower 2 drives the roller 51 to rotate synchronously and uniformly in the reverse direction, thereby driving the connecting disc 4 to rotate uniformly and making the wind turbine tower 2 start to rotate uniformly in one direction. The painting equipment then uniformly paints the outer circumferential sidewall of the wind turbine tower 2, reducing the possibility of incomplete painting of the outer circumferential sidewall of the wind turbine tower 2 and improving the painting efficiency.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for facilitating the painting of wind turbine towers, characterized in that: The device includes a fixed frame (1), which is respectively set at both ends of the wind turbine tower (2). The fixed frame (1) is provided with a plurality of positioning frames (3) fixedly connected to both ends of the wind turbine tower (2) around its circumference. A connecting disc (4) is fixedly connected to one end of the fixed frame (1) away from the wind turbine tower (2). A roller frame (5) is provided below the connecting disc (4). Rollers (51) are rotatably provided at both ends of the roller frame (5) and contact the circumferential sidewall of the connecting disc (4). The roller frame (5) is provided with a driving component (52) that drives the rollers (51) to rotate and drive the connecting disc (4) to rotate.

2. The device for facilitating the painting of wind turbine towers according to claim 1, characterized in that: The positioning frame (3) has a positioning hole (31) on one side near the end of the wind turbine tower (2). The positioning hole (31) corresponds to the threaded holes (21) at both ends of the wind turbine tower (2). A bolt (32) that is threaded to the threaded hole (21) is inserted into the positioning hole (31). The bolt (32) fixes the positioning frame (3) to the wind turbine tower (2).

3. The device for facilitating the painting of wind turbine towers according to claim 2, characterized in that: The positioning frame (3) has a positioning groove (33) that fits against the side wall of the fixed frame (1) on the side near the fixed frame (1). The side wall of the fixed frame (1) has a fixing hole (11) that penetrates the side wall of the positioning groove (33). The fixing hole (11) is provided with a bolt (12) for fixing the positioning frame (3).

4. The device for facilitating the painting of wind turbine towers according to claim 3, characterized in that: The fixing holes (11) are provided in several directions along the length of the fixing frame (1).

5. The device for facilitating the painting of wind turbine towers according to claim 4, characterized in that: The fixing frame (1) is fixedly connected to a connecting frame (13) on the side near the connecting disc (4), and the connecting frame (13) is fixedly connected to the side wall of the connecting disc (4).

6. The device for facilitating the painting of wind turbine towers according to claim 5, characterized in that: The fixing frame (1), connecting frame (13) and connecting disc (4) are hollowed out.

7. The device for facilitating the painting of wind turbine towers according to claim 6, characterized in that: A baffle (53) is provided on the side of the roller frame (5) away from the connecting disc (4), and the baffle (53) is in contact with the side of the connecting disc (4) away from the wind turbine tower (2).

8. The device for facilitating the painting of wind turbine towers according to claim 7, characterized in that: The stop (53) has a roller (54) rotatably mounted on the side near the connecting disc (4).

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