A blade root lifting tool structure applied to lifting and processing of a fan blade

Abstract

The utility model relates to a kind of blade root lifting appliance structures applied to fan blade hoisting processing, it is characterized by including blade root lifting appliance support and overturning execution mechanism and overturning drive mechanism installed on blade root lifting appliance support, the blade root lifting appliance support is composed of two oppositely arranged support side plates and shackle support seat, two support side plates are connected into an organic whole by connecting rod between upper end two corners and the horizontal bar of lower end middle position, the shackle support seat is welded and fixed between the upper end of two support side plates, the overturning drive mechanism is installed on the outer wall of two support side plates, the overturning execution mechanism is installed between two support side plates and is driven by the overturning drive mechanism of two sides. The utility model can rotate the blade root part of fan blade after hoisting by overturning execution mechanism, replaced the traditional roller processing tooling by this design, so that it can process large fan blade.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine blade processing technology, specifically to a blade root lifting device structure used for lifting and processing wind turbine blades. Background Technology

[0002] Wind turbine blades are an important component of wind turbines. During processing, they need to be flipped. Existing wind turbine blades are often flipped using roller processing fixtures, where the position of the blades is adjusted by rotating two rollers. However, with the development of technology, wind turbine blades are becoming larger and heavier. Existing roller processing fixtures cannot achieve the flipping of large wind turbine blades, and the flipping angle of existing roller processing fixtures is also uncontrollable, which has significant limitations. Therefore, it is particularly important to design a blade root lifting device structure for lifting and processing wind turbine blades to solve the above problems. Summary of the Invention

[0003] To address the aforementioned problems, this invention designs a blade root lifting fixture structure for wind turbine blade lifting and processing. Utilizing a tilting actuator, the blade root of the wind turbine blade can be rotated after lifting. This design replaces traditional roller processing fixtures, enabling the processing of large wind turbine blades. Furthermore, the tilting drive mechanism allows for precise control of the blade's tilting, enhancing its practicality.

[0004] To solve the above-mentioned technical problems, this utility model provides a blade root lifting tool structure for wind turbine blade lifting and processing. Its features include: a blade root lifting tool bracket and a flipping actuator and a flipping drive mechanism mounted on the bracket. The blade root lifting tool bracket is composed of two opposing support side plates and a shackle support seat. The two support side plates are connected as one unit by a connecting rod between the two upper corners and a crossbar at the middle of the lower end. The shackle support seat is welded and fixed between the upper ends of the two support side plates. The flipping drive mechanism is mounted on the outer wall of the two support side plates. The flipping actuator is mounted between the two support side plates and driven by the flipping drive mechanisms on both sides. The flipping drive mechanism includes a rotating main shaft, a pressure roller sleeve assembly, and a blade root lifting strap. The rotating main shaft is located between the two support side plates and rotates under the drive of the flipping drive mechanism. The pressure roller sleeve assembly is located on one side of the rotating main shaft and presses the blade root lifting strap tightly against the outer wall of the rotating main shaft.

[0005] Furthermore, a first guide shaft assembly and a second guide roller assembly are also provided between the two supporting side plates. The first guide shaft assembly and the second guide roller assembly are arranged one above the other between the two supporting side plates below the rotating main shaft. Both the first guide shaft assembly and the second guide roller assembly are composed of two guide shafts. The distance between the two guide shafts in the first guide shaft assembly is smaller than the distance between the two guide shafts in the second guide roller assembly.

[0006] Furthermore, the outer wall of the rotating spindle is uniformly provided with several protruding strips that are integrated with it, and the length of the protruding strips matches the length of the rotating spindle between the two supporting side plates.

[0007] Furthermore, the pressure roller assembly includes a roller sleeve, a roller shaft, an adjusting screw, an adjusting sleeve, a mounting plate, and a rotating rod. An adjusting sleeve is connected to the inner wall of each of the two supporting side plates via the mounting plate. The inner wall of the adjusting sleeve is provided with a threaded through hole that matches the adjusting screw. The lower end of the adjusting screw extends out of the adjusting sleeve and is connected to the roller shaft. The roller sleeve is fitted onto the outer wall of the roller shaft and is movably connected to it. Each end of the roller shaft is movably connected to an adjusting screw. The upper end of the adjusting screw extends out of the adjusting sleeve and is connected to the rotating rod.

[0008] Furthermore, the tilting drive mechanism consists of two reducers, two servo drive motors, and an electrical control box. A protective cover is detachably connected to the outer wall of each of the two support side plates. Each support side plate inside the protective cover is equipped with a reducer and a servo drive motor. The electrical control box is fixed to the outer wall of one of the protective cover bodies and electrically connected to the two servo drive motors. Each end of the rotating main shaft is connected to a reducer.

[0009] Furthermore, triangular reinforcing ribs are provided between the front and rear end side walls of the shackle support and the two support side plates.

[0010] With the above structure, this utility model uses a flipping actuator to drive the root of the wind turbine blade to rotate after lifting. This design replaces the traditional roller processing tooling, enabling the processing of large wind turbine blades. Moreover, the flipping drive mechanism can precisely control the flipping of the wind turbine blades, thereby increasing its practicality. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a diagram showing the usage state of this utility model.

[0013] Figure 2 This is a structural diagram of the leaf root lifting device.

[0014] Figure 3 This is a structural diagram of the blade root lifting device after the blade root lifting straps have been removed.

[0015] Figure 4 for Figure 3 A magnified view of A in the middle.

[0016] Figure 5 for Figure 3 Structural diagram after the protective outer cover has been removed.

[0017] Figure 6 for Figure 5 A magnified view of B in the middle.

[0018] In the diagram: 1 is the blade root lifting device structure, 2 is the wind turbine blade, 3 is the blade tip lifting device structure, 4 is the protective outer cover, 5 is the electrical control box, 6 is the blade root lifting strap, 7 is the second guide roller assembly, 8 is the crossbar, 9 is the first guide roller assembly, 10 is the triangular reinforcing rib, 11 is the connecting rod, 12 is the roller sleeve, 13 is the rotating main shaft, 14 is the shackle support seat, 15 is the reducer, 16 is the support side plate, 17 is the servo drive motor, 18 is the mounting plate, 19 is the adjusting sleeve, 20 is the adjusting screw, 21 is the roller shaft, and 22 is the rotating rod. Detailed Implementation

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The illustrated blade root lifting device structure for wind turbine blade lifting and processing includes a blade root lifting device bracket and a flipping actuator and a flipping drive mechanism mounted on the blade root lifting device bracket. The blade root lifting device bracket is composed of two opposing support side plates 16 and a shackle support seat 14. The two support side plates are connected as one unit by a connecting rod 11 between the two upper corners and a crossbar 8 at the middle of the lower end. The shackle support seat is welded and fixed between the upper ends of the two support side plates. The flipping drive mechanism is mounted on the outer wall of the two support side plates. The flipping actuator is mounted between the two support side plates and driven by the flipping drive mechanisms on both sides. The flipping drive mechanism includes a rotating main shaft 13, a pressure roller sleeve assembly, and a blade root lifting strap 6. The rotating main shaft 13 is located between the two support side plates and rotates under the drive of the flipping drive mechanism. The pressure roller sleeve assembly is located on one side of the rotating main shaft and presses the blade root lifting strap tightly against the outer wall of the rotating main shaft. During operation, the wind turbine blade 2 to be processed is first lifted using the blade tip lifting structure 3 and the blade root lifting structure 1. Then, based on the actual processing conditions, the wind turbine blade is precisely rotated through the cooperation of the rotation drive mechanism and the rotation execution mechanism, thereby facilitating processing. This utility model utilizes the rotation execution mechanism to drive the root part of the wind turbine blade to rotate after lifting. This design replaces the traditional roller processing fixture, enabling the processing of large wind turbine blades. Furthermore, the rotation drive mechanism allows for precise control of the rotation of the wind turbine blade, increasing its practicality.

[0020] like Figure 3 A first guide shaft assembly 9 and a second guide roller assembly 7 are also provided between the two supporting side plates shown. The first guide shaft assembly and the second guide roller assembly are arranged one above the other between the two supporting side plates below the rotating main shaft. Both the first guide shaft assembly and the second guide roller assembly are composed of two guide shafts. The distance between the two guide shafts in the first guide shaft assembly is smaller than the distance between the two guide shafts in the second guide roller assembly.

[0021] like Figure 4 The outer wall of the rotating spindle is uniformly provided with several protruding strips that are integrally connected to it. The length of the protruding strips matches the length of the rotating spindle between the two supporting side plates. This invention increases the friction between the blade root sling and the rotating spindle by using the protruding strips on the rotating spindle and the pressure roller sleeve assembly, preventing slippage between the blade root sling and the rotating spindle and increasing the flipping accuracy.

[0022] like Figure 4 and Figure 5The pressure roller assembly shown includes a roller sleeve 12, a roller shaft 21, an adjusting screw 20, an adjusting sleeve 19, a mounting plate 18, and a rotating rod 22. An adjusting sleeve is connected to the inner wall of each of the two supporting side plates via the mounting plate. The inner wall of the adjusting sleeve has a threaded through hole matching the adjusting screw. The lower end of the adjusting screw extends out of the adjusting sleeve and connects to the roller shaft. The roller sleeve is fitted onto the outer wall of the roller shaft and movably connected to it. Each end of the roller shaft is movably connected to an adjusting screw. The upper end of the adjusting screw extends out of the adjusting sleeve and connects to the rotating rod. This invention controls the length of the lower end of the adjusting screw by rotating the rotating rod. This design controls the distance between the roller sleeve 3 and the rotating main shaft, allowing the blade root suspension to be driven by the rotation of the rotating main shaft, thereby completing the rotation of the fan blades.

[0023] like Figure 2 , Figure 3 and Figure 5 The tilting drive mechanism shown consists of two reducers 15, two servo drive motors 17, and an electrical control box 5. A protective outer cover 4 is detachably connected to the outer walls of each of the two supporting side plates. Each protective outer cover contains a reducer and a servo drive motor mounted on its supporting side plate. The electrical control box is fixed to the outer wall of one of the protective outer covers and electrically connected to the two servo drive motors. Each end of the rotating main shaft is connected to a reducer. This invention provides a reducer and a servo drive motor on each of the left and right sides of the blade root lifting bracket. This design ensures that the weight of the blade root lifting bracket is consistent on both sides, thus improving lifting stability.

[0024] like Figure 4 The front and rear end side walls of the shackle support shown are provided with triangular reinforcing ribs 10 between the two support side plates. This design improves the stability of the structure.

[0025] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.

Claims

1. A blade root lifting device structure used for lifting and processing wind turbine blades, characterized in that: The device includes a blade root lifting bracket and a flipping actuator and a flipping drive mechanism mounted on the blade root lifting bracket. The blade root lifting bracket is composed of two opposing support side plates (16) and a shackle support seat (14). The two support side plates are connected as one unit by a connecting rod (11) between the two upper corners and a crossbar (8) at the middle position of the lower end. The shackle support seat is welded and fixed between the upper ends of the two support side plates. The flipping drive mechanism is mounted on the outer wall of the two support side plates. The flipping actuator is mounted between the two support side plates and driven by the flipping drive mechanisms on both sides. The flipping drive mechanism includes a rotating main shaft (13), a pressure roller sleeve assembly, and a blade root lifting strap (6). The rotating main shaft (13) is located between the two support side plates and rotates under the drive of the flipping drive mechanism. The pressure roller sleeve assembly is located on one side of the rotating main shaft and presses the blade root lifting strap tightly against the outer wall of the rotating main shaft.

2. The blade root lifting device structure for lifting and processing wind turbine blades according to claim 1, characterized in that: A first guide shaft assembly (9) and a second guide roller assembly (7) are also provided between the two supporting side plates. The first guide shaft assembly and the second guide roller assembly are arranged one above the other between the two supporting side plates below the rotating main shaft. Both the first guide shaft assembly and the second guide roller assembly are composed of two guide shafts. The distance between the two guide shafts in the first guide shaft assembly is smaller than the distance between the two guide shafts in the second guide roller assembly.

3. The blade root lifting device structure for lifting and processing wind turbine blades according to claim 1, characterized in that: The outer wall of the rotating spindle is uniformly provided with several protruding strips that are integrated with it, and the length of the protruding strips matches the length of the rotating spindle between the two supporting side plates.

4. The blade root lifting device structure for lifting and processing wind turbine blades according to claim 1, characterized in that: The pressure roller assembly includes a roller sleeve (12), a roller shaft (21), an adjusting screw (20), an adjusting sleeve (19), a mounting plate (18), and a rotating rod (22). An adjusting sleeve is connected to the inner wall of each of the two supporting side plates through the mounting plate. The inner wall of the adjusting sleeve is provided with a threaded through hole that matches the adjusting screw. The lower end of the adjusting screw extends out of the adjusting sleeve and is connected to the roller shaft. The roller sleeve is fitted onto the outer wall of the roller shaft and is movably connected to it. Each end of the roller shaft is movably connected to an adjusting screw. The upper end of the adjusting screw extends out of the adjusting sleeve and is connected to the rotating rod.

5. The blade root lifting device structure for lifting and processing wind turbine blades according to claim 1, characterized in that: The flipping drive mechanism consists of two reducers (15), two servo drive motors (17), and an electrical control box (5). A protective cover (4) is detachably connected to the outer wall of each of the two support side plates. A reducer and a servo drive motor are installed on the support side plate inside each protective cover. The electrical control box is fixed to the outer wall of a protective cover and electrically connected to the two servo drive motors. Both ends of the rotating spindle are connected to a reducer.

6. The blade root lifting device structure for lifting and processing wind turbine blades according to claim 1, characterized in that: Triangular reinforcing ribs (10) are provided between the front and rear end side walls of the shackle support and the two support side plates.

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