Hoisting tool for fan tower drum

Abstract

The utility model provides a hoisting tool for a fan tower drum, and belongs to the technical field of wind power installation. The lifting lug comprises a square tube and two fixing structures, sealing plates are arranged at the two ends of the square tube, the two fixing structures are arranged on the square tube in a sliding mode, each fixing structure comprises a bottom plate and a lifting lug eye plate, two sliding groove holes are symmetrically formed in each bottom plate, and the lifting lug eye plates are arranged in the sliding groove holes. Fixing bolts used for being connected with bolt holes in a tower drum flange are inserted in the sliding groove holes, and the lifting lug eye plate is arranged on the bottom plate. The lifting lug eye plate can be suitable for tower flanges of different sizes, can play a certain role in supporting the flange face and prevent the flange face from deforming, can also rapidly and symmetrically fix the two lifting lug eye plates on the tower flanges, and is simple in structure and convenient to install.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power installation and relates to a hoisting tool for a wind turbine tower barrel. Background Art

[0002] At present, most wind power tower barrels are hoisted using ordinary lifting lug eye plates and slings. In CN202211647091.9, a method for hoisting a large wind turbine tower barrel based on three positions is proposed. In this solution, two groups of lifting lug eye plates are used for the upper flange, and one group of lifting lug eye plates is used for the lower flange. The wind turbine tower barrel is lifted by the three groups of lifting lug eye plates and adjusted to the vertical direction. When it comes to a large-sized wind turbine tower barrel, the two groups of lifting lug eye plates on the upper flange have no relative support, which easily causes deformation of the flange surface. Moreover, the two groups of lifting lug eye plates need to be installed symmetrically and horizontally radially, and their positions need to be adjusted after manual positioning, so the installation process is rather cumbersome. Summary of the Invention

[0003] The purpose of the utility model is to address the above problems existing in the prior art and propose a hoisting tool for a wind turbine tower barrel. The utility model can be applicable to tower barrel flanges of different sizes, can play a certain supporting role for the flange surface to prevent it from deforming, and can also quickly and symmetrically fix two lifting lug eye plates on the tower barrel flange. The structure is simple and the installation is convenient.

[0004] The purpose of the utility model can be achieved by the following technical solutions:

[0005] A hoisting tool for a wind turbine tower barrel, the wind turbine tower barrel includes a tower barrel flange, and a plurality of bolt holes are circumferentially formed in the tower barrel flange. The hoisting tool includes: a square tube, and sealing plates are provided at both ends of the square tube;

[0006] Two fixing structures, both of the two fixing structures are slidably arranged on the square tube. The fixing structure includes: a bottom plate, two chute holes are symmetrically arranged on the bottom plate, and fixing bolts for connecting the bolt holes on the tower barrel flange are inserted in the chute holes; a lifting lug eye plate, and the lifting lug eye plate is arranged on the bottom plate.

[0007] Preferably, two limiting plates are vertically arranged on the bottom plate, the square tube is slidably arranged between the two limiting plates, a top plate is fixedly connected to the upper sides of the two limiting plates, and the lifting lug eye plate is fixedly arranged on the top plate.

[0008] Preferably, two second support plates are vertically arranged on the top plate, the two second support plates correspond to the two limiting plates one by one, and the second support plates are located above the corresponding limiting plates and are parallel to each other.

[0009] Preferably, a limit bolt is threadedly connected to the top plate. The lower end of the limit bolt passes through the top plate and a pressing plate is rotatably arranged at the end. When the limit bolt rotates, there is at least one position where the pressing plate contacts the upper side of the square pipe.

[0010] Preferably, a movable plate is slidably arranged on the chute hole. A through hole is provided on the movable plate. The lower end of the fixing bolt sequentially passes through the through hole and the chute hole and is threadedly connected to the bolt hole. Two limit grooves are respectively formed on the bottom plate on both sides of the chute hole. Two limit blocks are arranged on the lower side of the movable plate. The two limit blocks correspond to the two limit grooves one by one, and the limit blocks extend into the corresponding limit grooves.

[0011] Preferably, a stop rod is vertically arranged on the lower side of the bottom plate. The stop rod is located directly below the square pipe.

[0012] Preferably, the chute hole is arc-shaped.

[0013] Preferably, a screw rod is rotatably arranged in the square pipe. First external threads and second external threads are respectively arranged at both ends of the screw rod. The spiral directions of the first external thread and the second external thread are opposite. A first sleeve is threadedly connected to the first external thread. A second sleeve is threadedly connected to the second external thread. A first sliding hole and a second sliding hole are respectively formed on the upper side of the square pipe. A first push block is slidably arranged in the first sliding hole. A second push block is slidably arranged in the second sliding hole. The first push block is fixedly connected to the first sleeve. The second push block is fixedly connected to the second sleeve.

[0014] Preferably, a worm gear is arranged on the screw rod. A worm is rotatably arranged in the square pipe. The worm gear and the worm are meshed and connected. The upper end of the worm passes through the square pipe and a hand wheel is arranged at the end.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. In the initial state, the two fixing structures are close to each other. After installing one fixing mechanism on the flange surface, horizontally move the other fixing structure to align it with the bolt hole on the opposite side, and then fix it. Since the two fixing structures horizontally move on the same square pipe, the two fixing structures can be quickly adjusted to the horizontal radial position, and the operation is simple; in addition, by adjusting the relative position between the two fixing structures, the tooling can be applied to wind turbine towers of different sizes, improving the applicable range;

[0017] 2. Since both bottom plates are slidably arranged on the square pipe, the square pipe plays a role in limiting and supporting the bottom plates, avoiding relative deformation of the flange surface caused by the inclined upward pulling during hoisting; when both bottom plates reach the designated positions, the stop rods below the bottom plates respectively contact the inner side walls of the flange, further playing a supporting role;

[0018] 3. Horizontally place the square tube at the center position of the flange surface. By rotating the handwheel, the worm drives the worm wheel to rotate, causing the first sleeve and the second sleeve on the screw rod to rotate in opposite directions, making the two bottom plates move in opposite directions, and enabling the stop bars on the two bottom plates to respectively contact the inner side walls of the flange. At this time, the two bottom plates are respectively located at the horizontally symmetric positions, eliminating the trouble of manual position adjustment and saving time and effort. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is Figure 1 the sectional view taken along A - A in

[0021] Figure 3 is Figure 1 the sectional view taken along B - B in

[0022] Figure 4 is a schematic diagram of the present utility model installed on the tower barrel flange;

[0023] Figure 5 is a schematic structural diagram of Embodiment 2;

[0024] Figure 6 is a schematic structural diagram of Embodiment 3;

[0025] Figure 7 is Figure 6 the sectional view taken along C - C in

[0026] In the figure: 1. Square tube; 11. Sealing plate; 12. First sliding hole; 13. Screw rod; 131. Limit flange; 132. Worm wheel; 14. First external thread; 141. First sleeve; 142. First push block; 15. Second external thread; 151. Second sleeve; 152. Second push block; 16. Second sliding hole; 2. Bottom plate; 21. Slide groove hole; 22. First support plate; 23. Limit groove; 3. Limit plate; 31. Top plate; 32. Second support plate; 33. Hoisting eye plate; 34. Limit bolt; 341. Pressing plate; 4. Movable plate; 41. Through hole; 42. Limit block; 5. Fixed bolt; 6. Tower barrel flange; 61. Bolt hole; 7. Stop bar; 8. Worm; 81. Handwheel. Detailed Embodiment

[0027] The following are specific embodiments of the present utility model in combination with the accompanying drawings to further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments. Embodiment 1

[0028] As Figures 1-4As shown in the figure, a hoisting tooling for a wind turbine tower barrel, the wind turbine tower barrel includes a tower barrel flange 6, and a plurality of bolt holes 61 are circumferentially formed on the tower barrel flange 6.

[0029] The hoisting tooling includes a square pipe 1 and two fixing structures.

[0030] Sealing plates 11 are arranged at both ends of the square pipe 1.

[0031] The two fixing structures are both slidably arranged on the square pipe 1. The fixing structure includes a bottom plate 2 and a lifting eye plate 33. Two chute holes 21 are symmetrically arranged on the bottom plate 2. A fixing bolt 5 for connecting the bolt hole 61 on the tower barrel flange 6 is inserted into the chute hole 21. Two limiting plates 3 are vertically arranged on the bottom plate 2. The square pipe 1 is slidably arranged between the two limiting plates 3. The upper side edges of the two limiting plates 3 are fixedly connected with a top plate 31. The lifting eye plate 33 is fixedly arranged on the top plate 31.

[0032] In the initial state, the positions of the two bottom plates 2 are close. Align one bottom plate 2 with the bolt hole 61 on the tower barrel flange 6, and then fix it with the fixing bolt 5. Then horizontally move the other bottom plate 2 so that the chute hole 21 on this bottom plate 2 is aligned with the bolt hole 61 on the opposite side, and then fix it with the fixing bolt 5. Since the two bottom plates 2 horizontally move on the same square pipe 1, the two lifting eye plates 33 can be quickly adjusted to the horizontal radial position, and the operation is simple; in addition, by adjusting the relative position between the two bottom plates 2, the tooling can be applied to wind turbine tower barrels of different sizes, improving the applicable range.

[0033] Preferably, two second support plates 32 are vertically arranged on the top plate 31. The two second support plates 32 correspond to the two limiting plates 3 one by one. The second support plate 32 is located above the corresponding limiting plate 3 and is parallel to each other.

[0034] The lifting eye plate 33 directly transmits the pulling force to the two limiting plates 3 through the two second support plates 32, and then transmits it to the bottom plate 2, so that the entire bottom plate 2 is stressed, avoiding fracture at the connection between the lifting eye plate 33 and the top plate 31, and improving its structural strength.

[0035] In this embodiment, a limiting bolt 34 is threadedly connected to the top plate 31. The lower end of the limiting bolt 34 passes through the top plate 31 and a pressing plate 341 is rotatably arranged at the end. When the limiting bolt 34 rotates, there is at least one position where the pressing plate 341 is in contact with the upper side surface of the square pipe 1.

[0036] After the bottom plate 2 slides to a suitable position, then rotate the limiting bolt 34 downward so that the pressing plate 341 contacts and presses the square pipe 1, fixing the square pipe 1 at the current position, enabling the square pipe 1 to support the tower barrel flange 6.

[0037] In this embodiment, a movable plate 4 is slidably arranged on the chute hole 21. A through hole 41 is provided on the movable plate 4. The lower end of the fixing bolt 5 sequentially passes through the through hole 41 and the chute hole 21 and is threadedly connected to the bolt hole 61. Two limiting grooves 23 are respectively formed on the bottom plate 2 on both sides of the chute hole 21. Two limiting blocks 42 are provided on the lower side surface of the movable plate 4. The two limiting blocks 42 correspond to the two limiting grooves 23 one by one, and the limiting blocks 42 extend into the corresponding limiting grooves 23.

[0038] After the movable plate 4 moves to a suitable position following the fixing bolt 5, the fixing bolt 5 is rotated downward. The limiting blocks 42 on the movable plate 4 are inserted downward into the limiting grooves 23, and then the limiting blocks 42 contact the bottom of the limiting grooves 23, increasing the friction force of the movable plate 4, avoiding relative displacement between the bottom plate 2 and the tower barrel flange 6, and improving the safety and stability of hoisting.

[0039] In this embodiment, a stop rod 7 is vertically arranged on the lower side surface of the bottom plate 2. The stop rod 7 is located directly below the square pipe 1. When the stop rods 7 on the two bottom plates 2 both contact the inner side wall of the tower barrel flange 6, at this time, the fixing bolt 5 corresponds to the bolt hole 61 on the tower barrel flange 6, and the stop rod 7 plays a role in support and rapid positioning. Embodiment Two

[0040] This Embodiment Two is basically the same as Embodiment One. The difference is that, as Figure 5 shown, as Figure 5 shown, the chute hole 21 is arc-shaped. The arc-shaped chute hole 21 can make the fixing bolt 5 better match tower barrel flanges 6 of different sizes. Moreover, since the chute holes 21 on both sides of the bottom plate 2 are symmetrically arc-shaped, the setting of the movable plate 4 is cancelled. When the tower barrel flange 6 is horizontally hoisted, the bottom plate 2 is subjected to an upward and inward pulling force. The arc of the lower chute hole 21 faces outward, playing a limiting role and avoiding relative displacement between the bottom plate 2 and the fixing bolt 5. Embodiment Three

[0041] As Figure 6 and 7 shown, a screw rod 13 is rotatably arranged in the square pipe 1. First external threads 14 and second external threads 15 are respectively provided at both ends of the screw rod 13. The spiral directions of the first external thread 14 and the second external thread 15 are opposite. Preferably, two limiting convex edges 131 are provided on the screw rod 13, and the first external thread 14 and the second external thread 15 are respectively located outside the two limiting convex edges 131.

[0042] A first sleeve 141 is threadedly connected to the first external thread 14, and a second sleeve 151 is threadedly connected to the second external thread 15. First sliding holes 12 and second sliding holes 16 are respectively formed in the upper side surface of the square tube 1. A first push block 142 is slidably disposed in the first sliding hole 12, and a second push block 152 is slidably disposed in the second sliding hole 16. The first push block 142 is fixedly connected to the first sleeve 141, and the second push block 152 is fixedly connected to the second sleeve 151.

[0043] The square tube 1 is horizontally placed at the central position of the tower barrel flange 6. Since the spiral directions of the first external thread 14 and the second external thread 15 on the screw 13 are opposite, the first push block 142 on the first sleeve 141 is restricted by the first sliding hole 12, so that the first sleeve 141 can only horizontally move along the direction of the screw 13. The second push block 152 on the second sleeve 151 is restricted by the second sliding hole 16, so that the second sleeve 151 can only horizontally move along the direction of the screw 13. By rotating the screw 13, the first sleeve 141 and the second sleeve 151 on the screw 13 rotate in opposite directions at the same time, so that the two bottom plates 2 move in opposite directions, and the stop rods 7 on the two bottom plates 2 respectively contact the inner side walls of the tower barrel flange 6. At this time, the two bottom plates 2 are respectively located at the horizontally symmetric positions, which eliminates the trouble of manual position adjustment and saves time and effort.

[0044] In this embodiment, a worm gear 132 is provided on the screw 13, a worm 8 is rotatably disposed in the square tube 1, the worm gear 132 and the worm 8 are meshed and connected, and the upper end of the worm 8 passes through the square tube 1 and a hand wheel 81 is provided at the end.

[0045] By rotating the hand wheel 81, the screw 13 can be driven to rotate, with a simple structure and convenient operation.

Claims

1. A hoisting tool for a wind turbine tower barrel, the wind turbine tower barrel includes a tower barrel flange (6), and a plurality of bolt holes (61) are circumferentially formed on the tower barrel flange (6), and it is characterized in that, The hoisting tooling includes: a square pipe (1), and sealing plates (11) are arranged at both ends of the square pipe (1); Two fixing structures, both of the two fixing structures are slidably arranged on the square pipe (1), and the fixing structure includes: a bottom plate (2), two chute holes (21) are symmetrically arranged on the bottom plate (2), and a fixing bolt (5) for connecting a bolt hole (61) on a tower barrel flange (6) is inserted in the chute hole (21); a lifting eye plate (33), and the lifting eye plate (33) is arranged on the bottom plate (2).

2. The hoisting tooling for a wind turbine tower barrel according to claim 1, wherein, Two limiting plates (3) are vertically arranged on the bottom plate (2), the square pipe (1) is slidably arranged between the two limiting plates (3), an upper side edge of each of the two limiting plates (3) is fixedly connected with a top plate (31), and the lifting eye plate (33) is fixedly arranged on the top plate (31).

3. The hoisting tooling for a fan tower barrel according to claim 2, characterized in that, Two second support plates (32) are vertically arranged on the top plate (31), the two second support plates (32) correspond to the two limiting plates (3) one by one, and the second support plate (32) is located above the corresponding limiting plate (3) and is parallel to each other.

4. A hoisting tool for a wind turbine tower barrel according to claim 2, characterized in that A limiting bolt (34) is threadedly connected to the top plate (31), a lower end of the limiting bolt (34) passes through the top plate (31) and a pressing plate (341) is rotatably arranged at an end portion thereof. When the limiting bolt (34) rotates, there is at least one position where the pressing plate (341) is in contact with an upper side surface of the square pipe (1).

5. The hoisting tooling for a wind turbine tower barrel according to claim 1, characterized in that, A movable plate (4) is slidably arranged in the chute hole (21), a through hole (41) is arranged on the movable plate (4), a lower end of the fixing bolt (5) sequentially passes through the through hole (41) and the chute hole (21) and is threadedly connected with the bolt hole (61). Two limiting grooves (23) are respectively formed on the bottom plate (2) on both sides of the chute hole (21), two limiting blocks (42) are arranged on a lower side surface of the movable plate (4), the two limiting blocks (42) correspond to the two limiting grooves (23) one by one, and the limiting blocks (42) extend into the corresponding limiting grooves (23).

6. The hoisting tooling for a wind turbine tower barrel according to claim 1, wherein, A stop rod (7) is vertically arranged on a lower side surface of the bottom plate (2), and the stop rod (7) is located directly below the square pipe (1).

7. A hoisting tool for a wind turbine tower barrel according to claim 1, characterized in that, The chute hole (21) is arc-shaped.

8. A hoisting tool for a wind turbine tower barrel according to claim 1, characterized in that, A screw rod (13) is rotatably arranged in the square pipe (1), first external threads (14) and second external threads (15) are respectively arranged at both ends of the screw rod (13), the spiral directions of the first external threads (14) and the second external threads (15) are opposite, a first sleeve (141) is threadedly connected to the first external thread (14), a second sleeve (151) is threadedly connected to the second external thread (15), a first sliding hole (12) and a second sliding hole (16) are respectively formed on an upper side surface of the square pipe (1), a first push block (142) is slidably arranged in the first sliding hole (12), a second push block (152) is slidably arranged in the second sliding hole (16), the first push block (142) is fixedly connected with the first sleeve (141), and the second push block (152) is fixedly connected with the second sleeve (151).

9. The hoisting tooling for a wind turbine tower barrel according to claim 8, characterized in that, A worm gear (132) is provided on the screw rod (13). A worm (8) is rotatably provided in the square pipe (1). The worm gear (132) and the worm (8) are meshed and connected. The upper end of the worm (8) passes through the square pipe (1) and a hand wheel (81) is provided at the end.

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