Tool for hoisting and overturning fan blade

Abstract

The invention relates to a tool for hoisting and overturning a fan blade, which comprises a blade tip hoisting tool structure for hoisting a blade tip part of the fan blade and a blade root hoisting tool structure for hoisting a blade root part of the fan blade, the blade root lifting appliance structure comprises a blade root lifting appliance support, an overturning executing mechanism and an overturning driving mechanism, the overturning executing mechanism and the overturning driving mechanism are installed on the blade root lifting appliance support, and the blade root lifting appliance support is composed of two oppositely-arranged supporting side plates and a shackle supporting base. The two supporting side plates are connected into a whole through a connecting rod between the two corners of the upper ends and a transverse rod in the middle of the lower ends, the shackle supporting base is welded and fixed between the upper ends of the two supporting side plates, and the overturning driving mechanism is installed on the outer walls of the two supporting side plates. A traditional roller machining tool is replaced with the combination of the blade tip lifting tool structure and the blade root lifting tool structure, the large fan blade can be machined, the fan blade can be accurately turned over, and practicability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fan blade processing, and in particular to a tool for hoisting and flipping fan blades. Background Art

[0002] Wind blades are an important part of wind turbines and need to be flipped during processing. Existing wind blades are often flipped by roller processing tooling, and the position of the wind blades is adjusted by rotating two rollers. However, with the development of technology, wind blades are getting larger and heavier. Existing roller processing tooling cannot realize the processing and flipping of large wind blades. Moreover, the flipping angle of the existing roller processing tooling is uncontrollable when flipping the wind blades, which has great limitations. Therefore, in order to solve the above problems, it is particularly important to design a tooling for hoisting and flipping wind blades. Summary of the Invention

[0003] In order to solve the above problems, the present invention designs a tool for lifting and flipping fan blades. The combination of the blade tip hanger structure and the blade root hanger structure replaces the traditional roller processing tool, so that it can process large fan blades and can accurately flip the fan blades, thereby increasing practicality.

[0004] In order to solve the above-mentioned technical problems, the present invention provides a tool for lifting and flipping wind turbine blades, comprising a tip lifting device structure for lifting the tip part of the wind turbine blade and a root lifting device structure for lifting the root part of the wind turbine blade, wherein the root lifting device structure comprises a root lifting device bracket and a flip actuator and a flip driving mechanism installed on the root lifting device bracket, the root lifting device bracket is composed of two oppositely arranged supporting side plates and a shackle support seat, the two supporting side plates are connected into one by a connecting rod between the two corners of the upper end and a cross bar in the middle position of the lower end, the shackle support seat is welded and fixed between the upper ends of the two supporting side plates, the flip driving mechanism is installed on the outer walls of the two supporting side plates, and the flip actuator is installed between the two supporting side plates and driven by the flip driving mechanisms on both sides.

[0005] Further: the flipping drive mechanism includes a rotating main shaft, a pressure roller sleeve assembly, a first guide shaft assembly, a second guide roller assembly and a blade root sling. The rotating main shaft is arranged between two supporting side plates and is rotated by the flipping drive mechanism. The first guide shaft assembly and the second guide roller assembly are arranged one above and one below between the two supporting side plates below the rotating main shaft. The first guide shaft assembly and the second guide roller assembly are both composed of two guide shafts. The spacing between the two guide shafts in the first guide shaft assembly is smaller than the spacing between the two guide shafts in the second guide roller assembly. The pressure roller sleeve assembly is arranged on one side of the rotating main shaft and presses the blade root sling tightly against the outer wall of the rotating main shaft.

[0006] Furthermore: a plurality of convex strips connected to the outer wall of the rotating main shaft are evenly arranged, and the length of the convex strips matches the length of the rotating main shaft between the two supporting side plates.

[0007] Furthermore: the pressure roller sleeve assembly includes a roller sleeve, a roller shaft, an adjusting screw, an adjusting sleeve, a mounting plate and a rotating rod. The inner walls of the two supporting side plates are each connected with an adjusting sleeve through a mounting plate. The inner wall of the adjusting sleeve is provided with a threaded through hole matching 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 sleeved on the outer wall of the roller shaft and is movably connected to it. The two ends of the roller shaft are each movably connected with 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 flipping drive mechanism is composed of two reducers, two servo drive motors and an electrical control box. A protective outer cover body is detachably connected to the outer walls of the two supporting side panels. A reducer and a servo drive motor are installed on the supporting side panels inside each protective outer cover. The electrical control box is fixed on the outer wall of a protective outer cover body and electrically connected to the two servo drive motors. The two ends of the rotating main shaft are each connected to a reducer.

[0009] Furthermore: triangular reinforcement ribs are provided between the front and rear end side walls of the shackle support seat and the two supporting side plates.

[0010] Furthermore: the blade tip sling structure is composed of a blade tip sling bracket, a sling roller and a blade tip sling. A sling roller is installed at each end of the bottom of the blade tip sling bracket, and the blade tip sling is passed around the two sling rollers in sequence.

[0011] Furthermore, the top of the blade tip hanger bracket and the top of the shackle support seat are each connected to the long lifting ring through a bow-shaped shackle with a load of 50T.

[0012] After adopting the above structure, the beneficial effects of the present invention are as follows: The present invention adopts the above structure to replace the traditional roller processing tooling, so that it can process large fan blades and can accurately flip the fan blades, thereby increasing practicality.

[0013] The present invention provides a reducer and a servo drive motor on the left and right sides of the blade root hanger bracket, respectively. This design ensures that the weight of the left and right blade root hanger brackets is consistent, thereby improving the lifting stability.

[0014] The present invention increases the friction between the blade root sling and the rotating main shaft through the convex strips on the rotating main shaft and the pressure roller sleeve assembly, prevents the blade root sling and the rotating main shaft from slipping, and improves the turning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a usage state diagram of the present invention.

[0017] Figure 2 This is a structural diagram of the blade tip hanger structure.

[0018] Figure 3 This is the structural diagram of the blade root hanger structure.

[0019] Figure 4 The structural diagram after removing the blade root sling from the blade root sling structure.

[0020] Figure 5 for Figure 4 A magnified view of center.

[0021] Figure 6 for Figure 4 Structural diagram after removing the protective outer cover.

[0022] Figure 7 for Figure 6 Magnified view of B.

[0023] In the figure: 1 is the fan blade, 2 is the blade tip sling structure, 2-1 is the blade tip sling bracket, 2-2 is the sling roller, 3 is the blade root sling structure, 3-1 is the cross bar, 3-2 is the protective outer cover, 3-3 is the electric control box, 3-4 is the first guide shaft assembly, 3-5 is the second guide shaft assembly, 3-6 is the connecting rod, 3-7 is the triangular reinforcement rib, 3-8 is the roller sleeve, 3-9 is the rotating main shaft, 3-10 is the shackle support seat, 3-11 is the supporting side plate, 3-12 is the reducer, 3-13 is the servo drive motor, 3-14 is the mounting plate, 3-15 is the adjusting sleeve, 3-16 is the adjusting screw, 3-17 is the roller, 3-18 is the rotating rod, 4 is the blade tip sling, and 5 is the blade root sling. DETAILED DESCRIPTION

[0024] like Figure 1 、 Figure 3 、 Figure 4 and Figure 6The tooling shown is for hoisting and flipping wind turbine blades, comprising a tip hoist structure 2 for hoisting the tip of a wind turbine blade 1 and a root hoist structure 3 for hoisting the root of a wind turbine blade 1, wherein the root hoist structure 3 comprises a root hoist bracket and a flip actuator and a flip drive mechanism installed on the root hoist bracket, the root hoist bracket being composed of two oppositely arranged support side panels 3-11 and a shackle support seat 3-10, the two support side panels being connected as a whole by a connecting rod 3-6 between the two corners of the upper end and a cross bar 3-1 in the middle position of the lower end, the shackle support seat being welded and fixed between the upper ends of the two support side panels, the flip drive mechanism being installed on the outer walls of the two support side panels, the flip actuator being installed between the two support side panels and driven by the flip drive mechanisms on both sides. During operation, the fan blade to be processed is first lifted by the blade tip hanger structure 2 and the blade root hanger structure 3. Then, the fan blade is precisely flipped according to the actual processing situation through the cooperation of the flip drive mechanism and the flip actuator, thereby facilitating processing. The present invention adopts the above structure instead of the traditional roller processing tooling, making it possible to process large fan blades and accurately flip the fan blades, thereby increasing practicality.

[0025] like Figure 4 、 Figure 5 and Figure 6 The flipping drive mechanism shown includes a rotating main shaft 3-9, a pressure roller sleeve assembly, a first guide shaft assembly 3-4, a second guide roller assembly 3-5 and a blade root sling 5. The rotating main shaft 3-9 is arranged between two supporting side plates and is rotated by the flipping drive mechanism. The first guide shaft assembly and the second guide roller assembly are arranged one above and one below between the two supporting side plates below the rotating main shaft. The first guide shaft assembly and the second guide roller assembly are both composed of two guide shafts. The spacing between the two guide shafts in the first guide shaft assembly is smaller than the spacing between the two guide shafts in the second guide roller assembly. The pressure roller sleeve assembly is arranged on one side of the rotating main shaft and presses the blade root sling tightly against the outer wall of the rotating main shaft. A number of convex strips connected to it are evenly arranged on the outer wall of the rotating main shaft, and the length of the convex strips matches the length of the rotating main shaft between the two supporting side plates. When flipping is required, the rotation angle of the rotating main shaft is controlled, and the root part of the fan blade is precisely flipped by using the blade root sling. The present invention increases the friction between the blade root sling and the rotating main shaft through the convex strips on the rotating main shaft and the pressure roller sleeve assembly, thereby preventing slipping between the blade root sling and the rotating main shaft and increasing the flipping accuracy.

[0026] like Figure 5 and Figure 6The pressure roller sleeve assembly shown includes a roller sleeve 3-8, a roller shaft 3-17, an adjustment screw 3-16, an adjustment sleeve 3-15, a mounting plate 3-14, and a rotating rod 3-18. An adjustment sleeve is connected to the inner wall of each of the two supporting side panels via the mounting plate. The inner wall of the adjustment sleeve is provided with a threaded through-hole that matches the adjustment screw. The lower end of the adjustment screw extends out of the adjustment sleeve and connects to the roller shaft. The roller sleeve fits over the outer wall of the roller shaft and is movably connected to it. Each end of the roller shaft is movably connected to an adjustment screw. The upper end of the adjustment screw extends out of the adjustment sleeve and connects to the rotating rod. The present invention controls the extension length of the lower end of the adjustment 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 sling to be driven as the rotating main shaft rotates, thereby completing the rotation of the wind turbine blades.

[0027] like Figure 3 、 Figure 4 and Figure 6 The tilting drive mechanism shown is composed of two speed reducers 3-12, two servo drive motors 3-13, and an electrical control box 3-3. A protective outer cover 3-2 is detachably connected to the outer walls of each of the two supporting side panels. A speed reducer and a servo drive motor are mounted on each supporting side panel within each protective outer cover. 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 spindle is connected to a speed reducer. The present invention provides a speed reducer and a servo drive motor on each side of the blade root hanger bracket. This design ensures that the weight of the blade root hanger bracket on both sides is consistent, improving lifting stability.

[0028] like Figure 5 The front and rear side walls of the shackle support seat are provided with triangular reinforcement ribs 3-7 between the two supporting side plates.

[0029] like Figure 2 The blade tip sling structure shown is composed of a blade tip sling bracket 2-1, a sling roller 2-2 and a blade tip sling 4. A sling roller is installed at each end of the bottom of the blade tip sling bracket, and the blade tip sling is passed around the two sling rollers in sequence; the top of the blade tip sling bracket and the top of the shackle support seat are each connected to a long sling ring through a bow-shaped shackle with a load of 50T.

[0030] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should be considered within the scope of protection of the present invention.

Claims

1. A tool for hoisting and turning fan blades, characterized by: The invention comprises a tip sling structure (2) for slinging the tip of a fan blade (1) and a root sling structure (3) for slinging the root of a fan blade (1), wherein the root sling structure (3) comprises a root sling bracket and a flip actuator and a flip drive mechanism installed on the root sling bracket, wherein the root sling bracket is composed of two oppositely arranged support side plates (3-11) and a shackle support seat (3-10), the two support side plates are connected into one body through a connecting rod (3-6) between the two corners of the upper end and a cross bar (3-1) 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 flip drive mechanism is installed on the outer walls of the two support side plates, and the flip actuator is installed between the two support side plates and driven by the flip drive mechanisms on both sides.

2. The tool for hoisting and turning over fan blades according to claim 1, characterized in that: The flip drive mechanism comprises a rotating main shaft (3-9), a pressure roller sleeve assembly, a first guide shaft assembly (3-4), a second guide roller assembly (3-5) and a blade root sling (5); the rotating main shaft (3-9) is arranged between two supporting side plates and is rotated by the flip drive mechanism; the first guide shaft assembly and the second guide roller assembly are arranged one above and one below between two supporting side plates below the rotating main shaft; the first guide shaft assembly and the second guide roller assembly are both composed of two guide shafts; the spacing between the two guide shafts in the first guide shaft assembly is smaller than the spacing between the two guide shafts in the second guide roller assembly; the pressure roller sleeve assembly is arranged on one side of the rotating main shaft and presses the blade root sling tightly against the outer wall of the rotating main shaft.

3. The tool for hoisting and turning over fan blades according to claim 2, characterized in that: A plurality of convex strips connected to the outer wall of the rotating main shaft are evenly arranged thereon, and the length of the convex strips matches the length of the rotating main shaft between the two supporting side plates.

4. The tool for hoisting and turning over fan blades according to claim 2, characterized in that: The pressure roller sleeve assembly comprises a roller sleeve (3-8), a roller shaft (3-17), an adjusting screw (3-16), an adjusting sleeve (3-15), a mounting plate (3-14) and a rotating rod (3-18). An adjusting sleeve is connected to the inner walls of the two supporting side plates via the mounting plate. A threaded through hole matching the adjusting screw is provided on the inner wall of the adjusting sleeve. The lower end of the adjusting screw extends out of the adjusting sleeve and is connected to the roller shaft. The roller sleeve is sleeved on the outer wall of the roller shaft and is movably connected thereto. Both ends of the roller shaft are 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 tool for hoisting and turning over fan blades according to claim 2, characterized in that: The flip drive mechanism is composed of two speed reducers (3-12), two servo drive motors (3-13) and an electric control box (3-3); the outer walls of the two supporting side panels are each detachably connected to a protective outer cover body (3-2); the supporting side panels in each protective outer cover body are each installed with a speed reducer and a servo drive motor; the electric control box is fixed to the outer wall of a protective outer cover body and is electrically connected to the two servo drive motors; and the two ends of the rotating main shaft are each connected to a speed reducer.

6. The tool for hoisting and turning over fan blades according to claim 1, characterized in that: Triangular reinforcement ribs (3-7) are provided between the front and rear end side walls of the shackle support seat and the two supporting side plates.

7. The tool for hoisting and turning over fan blades according to claim 1, characterized in that: The blade tip sling structure is composed of a blade tip sling bracket (2-1), a sling roller (2-2) and a blade tip sling (4). A sling roller is installed at each end of the bottom of the blade tip sling bracket, and the blade tip sling passes around the two sling rollers in sequence.

8. The tool for hoisting and turning over fan blades according to claim 7, characterized in that: The top of the blade tip hanger bracket and the top of the shackle support seat are each connected to the long lifting ring through a bow-shaped shackle with a load of 50T.

Images