Annular protection lifting appliance for fan tower drum

Abstract

The utility model provides an annular protection lifting appliance for a fan tower drum, belongs to the technical field of fan tower drum lifting equipment, and solves the technical problems of how to reduce the force borne by a flange surface of the fan tower drum in the lifting process and prevent the flange surface of the fan tower drum from being damaged. An annular protection lifting appliance for a fan tower drum comprises a lifting appliance base, ten fixing rods are fixedly connected to the bottom of the lifting appliance base, the bottoms of the ten fixing rods are fixedly connected with the same first annular plate, five sliding plates are arranged on the first annular plate in a penetrating mode, the sliding plates are connected with the first annular plate in a sliding mode, one sides of the sliding plates are fixedly connected with fixing plates, and the other sides of the sliding plates are fixedly connected with the fixing plates. An anti-skid pad is embedded in the side, away from the sliding plate, of the fixing plate, a fixing base is fixedly connected to the side, away from the fixing plate, of the sliding plate, and rolling wheels are arranged on the fixing base. According to the fan tower drum hoisting device, the fan tower drum structure can be effectively protected, the fan tower drum is prevented from being damaged in the hoisting process, the stability is high, and the overall safety is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of wind turbine tower hoisting equipment, and relates to a wind turbine tower annular protective hoisting tool, particularly a wind turbine tower annular protective hoisting tool. Background Technology

[0002] The wind turbine tower is an important component of a wind turbine generator set, mainly used to support other components of the wind turbine, such as the rotor, generator, and pitch control system. The tower provides the necessary height so that the rotor can capture wind energy in higher wind speed ranges. The height of a wind turbine can typically reach tens of meters, or even exceed 100 meters. Currently, the connection method between wind turbine towers is flange bolt connection. During the assembly of the wind turbine tower, lifting tools are required. The lifting tools are fixed to the flange face of the wind turbine tower with bolts, and then a crane is used to lift the lifting tools to move the wind turbine tower to the designated position. However, the lifting tools of most wind turbine towers in the current technology still have problems that need to be solved.

[0003] In existing technologies, most wind turbine tower lifting devices are bolted to the flange face of the wind turbine tower. During the lifting process, the entire weight of the wind turbine tower is borne by the flange face, which will be subjected to great force. This may cause plastic deformation of the flange face, or even micro-cracks, which will affect the fit between the wind turbine tower and other components, as well as the overall structural strength and safety of the tower. Therefore, it is necessary to design a ring-shaped protective lifting device for wind turbine towers to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems in existing technologies by proposing a ring-shaped protective lifting device for wind turbine towers. The technical problem this utility model aims to solve is: how to reduce the force on the flange surface of the wind turbine tower during the lifting process and avoid damage to the flange surface of the wind turbine tower.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A wind turbine tower annular protective lifting device includes a lifting device base. Ten fixing rods are fixedly connected to the bottom of the lifting device base. The bottom of each of the ten fixing rods is fixedly connected to the same first annular plate. Five sliding plates are threaded through the first annular plate, and the sliding plates are slidably connected to the first annular plate. A fixing plate is fixedly connected to one side of each sliding plate. An anti-slip pad is embedded in the side of each fixing plate away from the sliding plate. A fixing seat is fixedly connected to the side of each sliding plate away from the fixing plate, and rollers are provided on the fixing seat. First guide rods are fixedly connected to both ends of the fixing plate on the side closest to the sliding plate. The first guide rod is fitted with a fixing ring, which is fixedly connected to the outer wall of the first annular plate. The first guide rod passes through the first annular plate, and a spring is fitted on the first guide rod. The spring is located on the side of the fixing ring away from the first annular plate. A support plate is fixedly connected to the bottom of the sliding plate. Five sleeve plates are fixedly connected to the outer walls of the top and bottom ends of the first annular plate. A second guide rod passes through the sleeve plate, and the sleeve plate is slidably connected to the second guide rod. All ten second guide rods are fixedly connected to the same second annular plate. Five extrusion plates are fixedly connected to the inner wall of the second annular plate.

[0007] The working principle of this utility model is as follows: the rotation of the second annular plate will drive the second guide rod to move on the sleeve plate, ensuring the stability of the second annular plate during movement. The movement of the second annular plate will drive the extrusion plate to move. The inclined surface of the extrusion plate will contact the roller. The extrusion plate continues to move, extruding the roller and causing the roller to move towards the wind turbine tower. The roller will drive the fixed seat to move. The fixed seat will drive the sliding plate to move. The sliding plate will drive the fixed plate to move. The fixed plate will drive the anti-slip pad to move until it contacts the wind turbine tower and clamps and fixes the wind turbine tower. The fixed plate and the anti-slip pad will clamp and fix the bottom end of the wind turbine tower. The movement of the sliding plate will also drive the support plate to move. When the support plate clamps and fixes the wind turbine tower, the support plate will move to the bottom of the wind turbine tower and support the wind turbine tower.

[0008] A worm gear is rotatably connected to the outer wall of the first annular plate. A square groove is formed at the position of the worm gear on the second annular plate. The worm gear is set in the square groove on the second annular plate. A worm wheel is provided on one side of the worm gear to cooperate with it. A gear is fixedly connected to the bottom of the worm wheel. The gear meshes with a rack. The rack is fixedly connected to the inner wall of the second annular plate.

[0009] With the above structure, the self-locking function of the worm gear and worm can ensure the stability of the fixed plate and anti-slip pad after the position of the fixed plate and anti-slip pad is adjusted, thus ensuring the clamping and fixing effect.

[0010] The worm gear has a rotating handle fixedly connected to the side away from the first annular plate.

[0011] Two bearing seats are fixedly connected to the outer wall of the first annular plate. The inner walls of the inner rings of the bearings on the two bearing seats are fixedly connected to the same fixed shaft. The fixed shaft passes through the worm gear and the gear, and the fixed shaft is fixedly connected to the worm gear and the gear.

[0012] Each of the ten fixed rods is fixedly connected to three annular reinforcing plates.

[0013] By adopting the above structure, the annular reinforcing plate improves the overall strength of the device, making it more stable.

[0014] The lifting device base has four arc-shaped grooves.

[0015] Using the above structure, bolts are passed through the arc-shaped groove and the threaded hole at the top of the wind turbine tower to connect the lifting base and the wind turbine tower, ensuring the stability of the wind turbine tower during hoisting.

[0016] A reinforcing plate is fixedly connected to the top of the lifting base, and four lifting seats are fixedly connected to the top of the reinforcing plate.

[0017] With the above structure, the hoisting rope can be tied to the hoisting ring on the hoisting base to carry out the hoisting work of the wind turbine tower.

[0018] Compared with the prior art, the wind turbine tower annular protective lifting device of this utility model has the following advantages:

[0019] In this invention, by employing a fixing plate and anti-slip pads to clamp the wind turbine tower and a support plate to hold it, the combination of the fixing plate, anti-slip pads, and support plate ensures that the force applied to the tower during hoisting is more even, reducing local stress concentration and thus lowering the risk of flange deformation. The fixing plate, anti-slip pads, and support plate also provide additional support, making the tower more stable during hoisting and reducing the possibility of tilting or swaying. This effectively solves the problem mentioned in the background art where the flange surface of the wind turbine tower bears extremely high forces during hoisting, potentially leading to plastic deformation or even micro-cracks, which can affect the fit between the wind turbine tower and other components, as well as the overall structural strength and safety of the tower. Therefore, this invention achieves the technical effect of effectively protecting the wind turbine tower structure, preventing damage during hoisting, and ensuring high stability and overall safety. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a wind turbine tower annular protective lifting device according to this utility model;

[0021] Figure 2 This is a schematic diagram of the installation of a wind turbine tower annular protective lifting device on the wind turbine tower according to this utility model;

[0022] Figure 3 This is a partial structural schematic diagram of a wind turbine tower annular protective lifting device according to this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the second annular plate of a wind turbine tower annular protective lifting device in this utility model;

[0024] Figure 5 This is a schematic diagram of the unfolded structure of the worm gear of a wind turbine tower annular protective lifting device in this utility model;

[0025] Figure 6 This is a schematic diagram of the unfolded structure of the sliding plate of a wind turbine tower annular protective lifting device in this utility model;

[0026] Figure 7 This is a schematic diagram of the unfolded structure of the reinforcing plate of a wind turbine tower annular protective lifting device according to this utility model.

[0027] In the diagram, 1. Lifting device base; 2. Fixed rod; 3. First annular plate; 4. Sliding plate; 5. Fixed plate; 6. Anti-slip pad; 7. Fixed seat; 8. Roller; 9. First guide rod; 10. Fixed ring; 11. Spring; 12. Support plate; 13. Sleeve plate; 14. Second guide rod; 15. Second annular plate; 16. Extrusion plate; 17. Worm gear; 18. Rotating handle; 19. Worm wheel; 20. Gear; 21. Fixed shaft; 22. Bearing seat; 23. Rack; 24. Annular reinforcing plate; 25. Arc groove; 26. Reinforcing plate; 27. Lifting seat. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] like Figure 1 - Figure 7As shown, a wind turbine tower annular protective lifting device includes a lifting device base 1. Ten fixing rods 2 are fixedly connected to the bottom of the lifting device base 1. The bottom of each of the ten fixing rods 2 is fixedly connected to the same first annular plate 3. Five sliding plates 4 are threaded through the first annular plate 3, and the sliding plates 4 are slidably connected to the first annular plate 3. A fixing plate 5 is fixedly connected to one side of each sliding plate 4. An anti-slip pad 6 is embedded in the side of the fixing plate 5 away from the sliding plate 4. A fixing seat 7 is fixedly connected to the side of the sliding plate 4 away from the fixing plate 5. Rollers 8 are provided on the fixing seat 7. First guide rods 9 are fixedly connected to both ends of the fixing plate 5 on the side closest to the sliding plate 4. A fixing ring 10 is fitted onto rod 9, which is fixedly connected to the outer wall of the first annular plate 3. A first guide rod 9 passes through the first annular plate 3, and a spring 11 is fitted onto the first guide rod 9. The spring 11 is located on the side of the fixing ring 10 away from the first annular plate 3. A support plate 12 is fixedly connected to the bottom of the sliding plate 4. Five sleeve plates 13 are fixedly connected to the outer walls of the top and bottom ends of the first annular plate 3. A second guide rod 14 passes through the sleeve plate 13, and the sleeve plate 13 is slidably connected to the second guide rod 14. All ten second guide rods 14 are fixedly connected to the same second annular plate 15. Five extrusion plates 16 are fixedly connected to the inner wall of the second annular plate 15.

[0030] A worm gear 17 is rotatably connected to the outer wall of the first annular plate 3. A square groove is provided at the position of the worm gear 17 on the second annular plate 15. The worm gear 17 is set in the square groove on the second annular plate 15. A worm wheel 19 is provided on one side of the worm gear 17 to cooperate with it. A gear 20 is fixedly connected to the bottom of the worm wheel 19. The gear 20 meshes with a rack 23. The rack 23 is fixedly connected to the inner wall of the second annular plate 15.

[0031] The worm gear 17 is fixedly connected to a rotating handle 18 on the side away from the first annular plate 3.

[0032] Two bearing seats 22 are fixedly connected to the outer wall of the first annular plate 3. The inner walls of the inner rings of the bearings on the two bearing seats 22 are fixedly connected to the same fixed shaft 21. The fixed shaft 21 passes through the worm gear 19 and the gear 20, and the fixed shaft 21 is fixedly connected to the worm gear 19 and the gear 20.

[0033] Each of the ten fixed rods 2 is fixedly connected to three annular reinforcing plates 24.

[0034] The lifting device base 1 has four arc-shaped grooves 25.

[0035] A reinforcing plate 26 is fixedly connected to the top of the lifting base 1, and four lifting seats 27 are fixedly connected to the top of the reinforcing plate 26.

[0036] The working principle of this utility model is as follows: In use, the device is fitted onto the wind turbine tower. Bolts are passed through the arc-shaped groove 25 and the threaded holes on the wind turbine tower to fix the lifting base 1 and the wind turbine tower together. The lifting rope is tied to the lifting ring on the lifting seat 27. Then, the rotating handle 18 is turned. Turning the handle 18 will drive the worm gear 17 to rotate, which in turn drives the worm wheel 19 to rotate. The worm wheel 19 will drive the gear 20 to rotate, which will then drive the rack 23 to move. The rack 23 will then drive the second annular plate 15 to move, and the second annular plate 15 will... The second guide rod 14 moves on the sleeve plate 13, and the movement of the second annular plate 15 drives the extrusion plate 16 to move. The inclined surface of the extrusion plate 16 contacts the roller 8, and the extrusion plate 16 squeezes the roller 8, causing the roller 8 to move. The movement of the roller 8 drives the fixed seat 7 to move, the fixed seat 7 drives the sliding plate 4 to move, the sliding plate 4 drives the fixed plate 5 to move, and the fixed plate 5 drives the anti-slip pad 6 to move until it contacts the wind turbine tower, thus clamping and fixing the wind turbine tower. The movement of the fixed plate 5 also drives the first guide rod 9 to move along the fixed ring 10. The first guide rod 9 compresses the spring 11, causing it to contract. The movement of the sliding plate 4 also moves the support plate 12, which moves to the bottom of the wind turbine tower, supporting it and reducing the pressure on the bolts connecting the lifting base 1 and the wind turbine tower. This also prevents excessive force on the top flange of the wind turbine tower, which could cause damage. After the fixing work is completed, a crane can be used to lift the device, thus lifting the wind turbine tower and moving it to the designated position for assembly. When assembling the wind turbine tower, the handle 18 is rotated in the opposite direction. Reversing the worm gear 17 causes the gear 20 to rotate in the opposite direction, moving the rack 23 to its initial position. This moves the extrusion plate 16 to its initial position, whereupon the extrusion plate 16 no longer applies pressure to the roller 8. The contracted spring 11 then extends, allowing the first guide rod 9 to return to its initial position. The fixing plate 5 and anti-slip pad 6 then move away from the wind turbine tower, and the support plate 12 is removed from the bottom of the wind turbine tower. The bolts connecting the flange to the top of the wind turbine tower are then removed, allowing the device to be removed. The hoisting work can then continue following the same steps.

[0037] In summary, this utility model can effectively protect the wind turbine tower structure, prevent damage to the wind turbine tower during hoisting, and has high stability and overall safety.

[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A ring protector hoist for a fan tower, comprising a hoist base (1), characterized in that, The bottom of the lifting tool base (1) is fixedly connected with ten fixed rods (2), the bottom of each of the ten fixed rods (2) is fixedly connected with a same first annular plate (3), five sliding plates (4) are penetratingly arranged on the first annular plate (3), the sliding plates (4) are slidingly connected with the first annular plate (3), one side of the sliding plates (4) is fixedly connected with a fixed plate (5), an antiskid pad (6) is embedded on the side, away from the sliding plates (4), of the fixed plate (5), a fixing seat (7) is fixedly connected with the side, away from the fixed plate (5), of the sliding plates (4), a roller (8) is arranged on the fixing seat (7), the two ends of the side, close to the sliding plates (4), of the fixed plate (5) are fixedly connected with first guide rods (9), the first guide rods (9) are sleeved with fixing rings (10), the fixing rings (10) are fixedly connected with the outer wall of the first annular plate (3), the first guide rods (9) penetrate through the first annular plate (3), springs (11) are sleeved on the first guide rods (9), the springs (11) are arranged on the side, away from the first annular plate (3), of the fixing rings (10), the bottom of the sliding plates (4) is fixedly connected with a supporting plate (12), the top and bottom outer walls of the first annular plate (3) are fixedly connected with five sleeve plates (13), second guide rods (14) are penetratingly arranged on the sleeve plates (13), the sleeve plates (13) are slidingly connected with the second guide rods (14), the ten second guide rods (14) are fixedly connected with a same second annular plate (15), the inner wall of the second annular plate (15) is fixedly connected with five extrusion plates (16).

2. The ring protector hanger for a fan tower according to claim 1, wherein, The outer wall of the first annular plate (3) is rotatably connected with a worm (17), the second annular plate (15) is provided with a square slot at the position of the worm (17), the worm (17) is arranged in the square slot on the second annular plate (15), one side of the worm (17) is provided with a worm wheel (19) matched therewith, the bottom of the worm wheel (19) is fixedly connected with a gear (20), the gear (20) is meshingly connected with a rack (23), the rack (23) is fixedly connected with the inner wall of the second annular plate (15).

3. The ring protector hanger for a fan tower according to claim 2, wherein, The side, away from the first annular plate (3), of the worm (17) is fixedly connected with a rotating handle (18).

4. The ring protector hanger for a fan tower according to claim 3, wherein, The outer wall of the first annular plate (3) is fixedly connected with two bearing seats (22), the inner ring inner walls of the bearings on the two bearing seats (22) are fixedly connected with a same fixed shaft (21), the fixed shaft (21) penetrates through the worm wheel (19) and the gear (20), and the fixed shaft (21) is fixedly connected with the worm wheel (19) and the gear (20).

5. The ring protector hanger for a fan tower according to claim 1, wherein, Three annular reinforcing plates (24) are fixedly connected on each of the ten fixed rods (2).

6. The ring protector hanger for a fan tower according to claim 1, wherein, Four arc-shaped slots (25) are arranged on the lifting tool base (1).

7. The ring protector hanger for a fan tower according to claim 6, wherein, The top of the lifting tool base (1) is fixedly connected with a reinforcing plate (26), the top of the reinforcing plate (26) is fixedly connected with four lifting seats (27).

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