Wind power blade hoisting tool and hoisting method

Abstract

The invention provides a wind power blade hoisting tool and a hoisting method. Relates to the technical field of hoisting. The wind power blade hoisting tool comprises a connecting cross beam, a carrying box is fixedly installed at the bottom of the connecting cross beam, a first two-way lead screw is rotatably installed in the carrying box, and a first servo motor is fixedly installed on the outer wall of one side of the carrying box; an output shaft of the first servo motor is fixedly connected with one end of the first two-way lead screw, a first connecting folded plate and a second connecting folded plate are installed on the first two-way lead screw in a threaded mode, a fixed sliding frame is fixedly installed at the bottom of the first connecting folded plate, and a positioning sliding rod is fixedly installed in the fixed sliding frame; a linkage block is slidably mounted on the positioning sliding rod, and a first connecting frame is fixedly mounted at the bottom of the linkage block. The blade hoisting device has the advantages that the hoisting process is stable, the blades are effectively prevented from falling off, and the safety performance is high.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting, and particularly to a hoisting tooling and a hoisting method for a wind power blade. Background Art

[0002] At present, in order to save energy and improve the utilization rate of natural energy, wind energy is converted into electric energy through wind power generation for people to use. In wind power generation, wind power blades are the most important core components, which are important components for converting natural wind energy into electric energy in wind turbines. Their main function is to capture wind energy and convert it into mechanical energy, and then convert it into electric energy through a generator. However, the weight of wind power blades reaches dozens of tons. During installation, a crane is needed to hoist them. During hoisting, the blades are tied with straps, then hooked through a hook, and finally hoisted to a specified height for docking and installation.

[0003] However, during the hoisting process, it is very difficult to achieve stable fixation only by tying the blades with straps. There are no external objects to position the two ends of the blades. When the blades tilt due to unstable center of gravity, the blades are very likely to fall off, which will not only cause damage to the blades, but also may bring serious safety accidents to the surrounding workers.

[0004] Therefore, it is necessary to provide a new hoisting tooling and a hoisting method for a wind power blade to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a hoisting tooling and a hoisting method for a wind power blade with a stable hoisting process, which can effectively avoid the falling of the blade and has high safety performance.

[0006] To solve the above technical problems, the hoisting tooling for wind turbine blades provided by the present invention includes a connecting cross beam. A load box is fixedly installed at the bottom of the connecting cross beam. A first bidirectional lead screw is rotatably installed in the load box. A first servo motor is fixedly installed on an outer wall of one side of the load box. An output shaft of the first servo motor is fixedly connected to one end of the first bidirectional lead screw. A first connecting folding plate and a second connecting folding plate are threadedly installed on the first bidirectional lead screw. A fixed sliding frame is fixedly installed at the bottom of the first connecting folding plate. A positioning sliding rod is fixedly installed in the fixed sliding frame. A linkage block is slidably installed on the positioning sliding rod. A first connecting frame is fixedly installed at the bottom of the linkage block. A second connecting frame is fixedly installed at the bottom of the second connecting folding plate. A first U-shaped frame is fixedly installed at the bottom of the first connecting frame. A second U-shaped frame is fixedly installed at the bottom of the second connecting frame. The same first concave seat is fixedly installed on two inner walls of the first U-shaped frame. The same limiting box is fixedly installed on two inner walls of the second U-shaped frame. The top of the limiting box and one side close to the first concave seat are both provided with openings. A first electric slide rail is arranged below the first concave seat. A blocking plate is fixedly installed on a slider of the first electric slide rail. The blocking plate is in contact with one side of the first concave seat away from the limiting box.

[0007] Preferably, an electric push rod is fixedly installed at the bottom of the fixed sliding frame. An output shaft of the electric push rod is fixedly connected to the first connecting frame.

[0008] Preferably, internal thread sleeves are rotatably installed at the bottoms of the first connecting frame and the second connecting frame. Lifting lead screws are threadedly installed in the two internal thread sleeves. Bottom ends of the two lifting lead screws respectively extend into the first U-shaped frame and the second U-shaped frame, and the two lifting lead screws are respectively movably connected to tops of the first U-shaped frame and the second U-shaped frame. Upper pressing sheets are fixedly installed at bottom ends of the two lifting lead screws. First driven gears are fixedly sleeved on the two internal thread sleeves. The two first driven gears respectively penetrate through the first connecting frame and the second connecting frame, and the two first driven gears are respectively movably connected to the first connecting frame and the second connecting frame. Second servo motors are fixedly installed on outer walls of the first connecting frame and the second connecting frame close to each other. First driving gears are fixedly sleeved on output shafts of the two second servo motors. The two first driving gears are respectively meshed with the two first driven gears.

[0009] Preferably, grafting plates are fixedly installed at the bottoms of the first concave seat and the limit box. Second concave seats are fixedly installed at the bottoms of the two grafting plates. Two roller legs are fixedly installed at the bottoms of the two second concave seats. The first electric slide rail is fixedly connected to the second concave seat close to the first concave seat. Second bidirectional lead screws are rotatably installed in the two second concave seats. The two second bidirectional lead screws respectively penetrate through the two grafting plates and are movably connected to the corresponding grafting plates. Two pushing pieces are threadedly installed on each of the two second bidirectional lead screws. Guide rods are slidably installed on both sides of the first concave seat and both sides of the limit box. One end of each of the four guide rods away from each other is fixedly connected to the corresponding pushing piece. Clamping pieces are fixedly installed at one end of each of the four guide rods close to each other. Third servo motors are fixedly installed on the outer walls of one side of the two second concave seats. Output shafts of the two third servo motors are respectively fixedly connected to one end of the two second bidirectional lead screws.

[0010] Preferably, a mother protection frame and two sub-protection frames are arranged between the first U-shaped frame and the second U-shaped frame. The mother protection frame is located between the two sub-protection frames.

[0011] Preferably, a connecting partition is fixedly installed on the inner wall of the top of the storage box. The first bidirectional lead screw penetrates through the connecting partition and is movably connected to the connecting partition. An activity port is formed in the connecting partition. The electric push rod penetrates through the activity port and is movably connected to the inner wall of the activity port. A bearing frame body is fixedly installed at the bottom of the connecting partition. An insertion socket is formed at the bottom of the bearing frame body. An insertion seat is fixedly installed on the top of the mother protection frame. The top of the insertion seat penetrates through the insertion socket and extends into the bearing frame body. A through groove is formed on one side of the insertion seat. The same third bidirectional lead screw is rotatably installed on both sides of the bearing frame body. Two first connecting plates are threadedly installed on the third bidirectional lead screw. First insertion rods are fixedly installed on one side of the two first connecting plates close to each other. One side of each of the two first insertion rods close to each other extends into the through groove, and the two first insertion rods are respectively slidably connected to both sides of the bearing frame body. A driving rotating shaft is rotatably installed in the bearing frame body. A second driving gear is fixedly sleeved on the driving rotating shaft. A second driven gear is fixedly sleeved on the third bidirectional lead screw. The second driving gear and the second driven gear are meshed with each other. A fourth servo motor is fixedly installed on the outer wall of one side of the bearing frame body. The output shaft of the fourth servo motor is fixedly connected to one end of the driving rotating shaft.

[0012] Preferably, first buckling grooves are formed on both sides of the mother protection frame, second buckling grooves are formed on the mutually remote sides of the two daughter protection frames, buckling plates are fixedly installed on the mutually close sides of the two daughter protection frames, the mutually close sides of the two buckling plates respectively extend into the two first buckling grooves, and the buckling plates are adapted to the first buckling grooves and the second buckling grooves. Positioning grooves are formed at the tops of the two buckling plates, transverse connection plates are fixedly installed at the tops of the two daughter protection frames, lifting screw columns are threadedly installed on the two transverse connection plates, vertical clamping plates are rotatably installed at the bottom ends of the two lifting screw columns, the bottom ends of the two vertical clamping plates respectively extend into the two positioning grooves, and the two vertical clamping plates are both slidably connected to the top of the mother protection frame. Adaptation openings are formed at the tops of the two daughter protection frames, the two adaptation openings are respectively communicated with the two second buckling grooves, and the vertical clamping plates are adapted to the adaptation openings.

[0013] Preferably, a support platform is arranged on the side of the limit box away from the first concave seat. Two second electric slide rails are fixedly installed on the top of the support platform. The same rectangular frame sleeve is fixedly installed on the sliders of the two second electric slide rails. The same rotating column is rotatably installed at the bottom and top of the rectangular frame sleeve. The top end of the rotating column extends above the rectangular frame sleeve and is fixedly installed with a rotating platform. Two vertical guide rods are fixedly installed on the top of the rotating platform. The same lifting platform is slidably installed on the two vertical guide rods. An engaging groove is formed on the side of the lifting platform close to the limit box. A clamping folding plate is fixedly installed on the top of the engaging cross beam. The bottom of the clamping folding plate extends into the engaging groove. Positioning blind holes are formed on both sides of the clamping folding plate. A fourth bidirectional lead screw is rotatably installed on the lifting platform. Two second connecting plates are threadedly installed on the fourth bidirectional lead screw. Second insertion rods are fixedly installed on the mutually close sides of the two second connecting plates. The mutually close ends of the two second insertion rods respectively extend into the two positioning blind holes, and the second insertion rods are slidably connected to the lifting platform. A linkage rod is rotatably installed on the inner wall of one side of the rectangular frame sleeve. Bevel gears are fixedly sleeved on both the linkage rod and the rotating column. The two bevel gears are meshed with each other. A fifth servo motor is fixedly installed on the outer wall of one side of the rectangular frame sleeve. The output shaft of the fifth servo motor is fixedly connected to one end of the linkage rod.

[0014] Preferably, two setscrews are threadedly installed on one side of the lifting platform. A hollow seat is fixedly installed at the bottom of the support platform. Two hydraulic cylinders located in the hollow seat are fixedly installed at the bottom of the support platform. The same connecting plate is fixedly installed on the output shafts of the two hydraulic cylinders. Four Fulmar wheels distributed in a matrix are fixedly installed at the bottom of the connecting plate.

[0015] The present invention also provides a method for hoisting a wind power blade, including the following steps:

[0016] S1. Position the wind turbine blade: Start the first servo motor forward. The output shaft drives the first bidirectional lead screw to rotate, and the distance between the first concave seat and the limit box changes. After the distance between the two is adjusted to an approximately appropriate distance, turn off the first servo motor. Then, move the first concave seat and the limit box below the blade, start the crane to slowly lift the connecting cross beam until the blade enters the first concave seat and the limit box and contacts the ball, and then stop lifting.

[0017] S2. Fix the wind turbine blade: Start the first servo motor to make both sides of the blade contact the inner wall of one side of the limit box and the sealing plate respectively. Start the two third servo motors forward to make the corresponding two clamping pieces approach each other and finally contact the blade to form clamping and positioning. Start the two second servo motors, the two internal thread sleeves rotate, and the two lifting lead screws drive the corresponding upper pressing pieces to descend. Finally, the upper pressing pieces contact the top of the blade to form a positioning effect on the blade.

[0018] S3. Protect the wind turbine blade: Put the female protection frame on the blade. Move the installation socket below the installation socket and lift it up, insert it into the installation socket. Start the fourth servo motor forward, the third bidirectional lead screw starts to rotate, and the two first insertion rods are inserted into the through grooves. Take out the corresponding number of sub-protection frames, insert the buckling plates on two of the sub-protection frames into the first buckling grooves on both sides of the female protection frame respectively, screw the two lifting studs, and the corresponding vertical clamping plates enter the corresponding clamping grooves. Then, install the latter sub-protection frame on the former sub-protection frame and install them sequentially from the center of the female protection frame to both sides until all are installed, and then carry out the lifting work.

[0019] Compared with the related technology, the wind turbine blade hoisting tooling and hoisting method provided by the present invention have the following beneficial effects:

[0020] 1. The first concave seat and the limit box can support the wind turbine blade from both ends, which can avoid the accidental situation of the blade falling during hoisting. Moreover, through the sealing plate, clamping pieces and upper pressing pieces provided, a firm clamping effect can be formed on the blade, so that the blade will not shake during hoisting, improving the hoisting stability.

[0021] 2. Through the first bidirectional lead screw, the first connecting folding plate and the second connecting folding plate provided, the hoisting work of wind turbine blades with different lengths can be carried out, and the applicable range is relatively wide. In addition, the middle part of the blade is surrounded and protected by the female protection frame and the sub-protection frame, so that the wind turbine blade will not collide and rub with external objects during hoisting, thereby protecting the blade and ensuring the integrity of its appearance. Description of the Drawings

[0022] Figure 1 Structural schematic of the first embodiment of the wind turbine blade hoisting tooling provided by the present invention Figure 1 ;

[0023] Figure 2 Structural schematic of the first embodiment of the wind turbine blade hoisting tooling provided by the present invention Figure 2 ;

[0024] Figure 3 Bottom view structural schematic of the first embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0025] Figure 4 Connection structural schematic of the first connecting frame and the electric push rod in the first embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0026] Figure 5 Connection structural schematic of the first bidirectional lead screw in the first embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0027] Figure 6 Structural schematic of the first concave seat in the first embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0028] Figure 7 Structural schematic of the limit box in the first embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0029] Figure 8 Assembly schematic of the female protection frame and the male protection frame in the first embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0030] Figure 9 Structural schematic of the opening of the insertion socket in the first embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0031] Figure 10 Structural schematic of the opening of the first buckle groove in the first embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0032] Figure 11 Insertion state schematic of the buckling plate and the vertical clamping plate in the first embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0033] Figure 12 Structural schematic of the second embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0034] Figure 13 Connection structural schematic of the rectangular frame sleeve and the rotating column in the second embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0035] Figure 14Schematic cross-sectional structure diagram of the hollow seat in the second embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0036] Figure 15 Schematic structure diagram of the opening of the connection groove in the second embodiment of the wind turbine blade hoisting tooling provided by the present invention;

[0037] Figure 16 Schematic cross-sectional structure diagram of the positioning blind hole in the second embodiment of the wind turbine blade hoisting tooling provided by the present invention.

[0038] Reference numerals in the figure: 1, connection cross beam; 2, load box; 3, first bidirectional lead screw; 4, first connecting folding plate; 5, second connecting folding plate; 6, fixed sliding frame; 7, positioning sliding rod; 8, linkage block; 9, first connecting frame; 10, second connecting frame; 11, electric push rod; 12, first U-shaped frame; 13, second U-shaped frame; 14, internal thread sleeve; 15, lifting lead screw; 16, upper pressing piece; 17, first concave seat; 18, limiting box; 19, first electric slide rail; 20, blocking plate; 21, bridging plate; 22, second concave seat; 23, second bidirectional lead screw; 24, pushing piece; 25, guiding rod; 26, clamping piece; 27, connection partition; 28, mother protection frame; 29, child protection frame; 30, bearing frame body; 31, installation socket; 32, installation plug; 33, through groove; 34, third bidirectional lead screw; 35, first connecting plate; 36, first plug rod; 37, active rotating shaft; 38, first buckle groove; 39, second buckle groove; 40, buckling plate; 41, transverse connecting plate; 42, lifting stud; 43, vertical clamping plate; 44, support table; 45, second electric slide rail; 46, rectangular frame sleeve; 47, rotating column; 48, rotating table; 49, vertical guide rod; 50, lifting table; 51, connection groove; 52, clamping folding plate; 53, positioning blind hole; 54, fourth bidirectional lead screw; 55, second connecting plate; 56, second plug rod; 57, hollow seat; 58, hydraulic cylinder; 59, connecting plate; 60, Fuma wheel. Detailed implementation manners

[0039] The present invention will be further described below in conjunction with the drawings and embodiments.

[0040] First embodiment:

[0041] Please refer to Figures 1 - 11, in the first embodiment of the present invention, the hoisting tooling for wind turbine blades includes: a connecting cross beam 1, and a load box 2 is fixed to the bottom of the connecting cross beam 1. A first bidirectional lead screw 3 is rotatably installed therein. A first servo motor is fixed to the outer wall of one side of the load box 2, and its output shaft is fixedly connected to one end of the first bidirectional lead screw 3. A first connecting folding plate 4 and a second connecting folding plate 5 are threadedly installed on the first bidirectional lead screw 3. Two load-bearing cross bars are fixed in the load box 2, and the two load-bearing cross bars penetrate through the first connecting folding plate 4 and the second connecting folding plate 5 and are slidably connected to the two. A fixed sliding frame 6 is fixed to the bottom of the first connecting folding plate 4, a positioning slide bar 7 is fixed therein, a linkage block 8 is slidably installed on the positioning slide bar 7, a first connecting frame 9 is fixed to the bottom of the linkage block 8, and an electric push rod 11 is fixed to the bottom of the fixed sliding frame 6, and its output shaft is fixedly connected to the first connecting frame 9. A second connecting frame 10 is fixed to the bottom of the second connecting folding plate 5. A first U-shaped frame 12 is fixed to the bottom of the first connecting frame 9, and a second U-shaped frame 13 is fixed to the bottom of the second connecting frame 10. The same first concave seat 17 is fixed to the inner walls of both sides of the first U-shaped frame 12. The same limiting box 18 is fixed to the inner walls of both sides of the second U-shaped frame 13. The top of the limiting box 18 and the side close to the first concave seat 17 are both provided with openings. A first electric slide rail 19 is provided below the first concave seat 17, and a blocking plate 20 is fixed to the slider of the first electric slide rail 19. The blocking plate 20 is in contact with the side of the first concave seat 17 away from the limiting box 18. In this way, a mechanical supporting structure can be formed on both the left and right sides. The wind turbine blade is placed in the first concave seat 17 and the limiting box 18, so as to effectively prevent the blade from falling during hoisting.

[0042] In the above method, in order to form a pressing effect above the blade and on the front and rear sides to prevent the blade from shaking during hoisting, internal thread sleeves 14 are rotatably installed at the bottoms of the first connecting frame 9 and the second connecting frame 10. Lifting lead screws 15 are threadedly installed in the two internal thread sleeves 14. The bottom ends of the two lifting lead screws 15 respectively extend into the first U-shaped frame 12 and the second U-shaped frame 13, and the two lifting lead screws 15 are respectively movably connected to the tops of the first U-shaped frame 12 and the second U-shaped frame 13. Upper pressing pieces 16 are fixed to the bottom ends of the two lifting lead screws 15. In addition, vertical rods are fixed to the tops of the two upper pressing pieces 16. The top ends of the two vertical rods respectively extend into the first connecting frame 9 and the second connecting frame 10, and the two vertical rods are respectively slidably connected to the bottoms of the first connecting frame 9 and the second connecting frame 10. At the same time, the two vertical rods are respectively slidably connected to the tops of the first U-shaped frame 12 and the second U-shaped frame 13 to form a limiting effect;

[0043] A first driven gear is fixedly sleeved on each of the two internal thread sleeves 14. The two first driven gears respectively penetrate through the first connection frame 9 and the second connection frame 10, and are respectively movably connected to the first connection frame 9 and the second connection frame 10. Second servo motors are fixedly mounted on the outer walls of the mutually adjacent sides of the first connection frame 9 and the second connection frame 10. A first driving gear is fixedly sleeved on the output shaft of each of the two second servo motors. The two first driving gears are respectively meshed with the two first driven gears. Through the operation of the second servo motors, by means of the meshing transmission between the gears, the upper pressing pieces 16 can respectively descend, and finally come into contact with the blades placed in the first concave seat 17 and the limiting box 18. Moreover, bridging plates 21 are fixedly mounted on the bottoms of the first concave seat 17 and the limiting box 18. Two roller legs are fixedly mounted on the bottom of each of the two bridging plates 21. The first electric slide rail 19 is fixedly connected to the second concave seat 22 close to the first concave seat 17. A second bidirectional lead screw 23 is rotatably mounted in each of the two second concave seats 22. The two second bidirectional lead screws 23 respectively penetrate through the two bridging plates 21 and are movably connected to the corresponding bridging plates 21. Two pushing pieces 24 are threadedly mounted on each of the two second bidirectional lead screws 23. Guide rods 25 are slidably mounted on both sides of the first concave seat 17 and both sides of the limiting box 18. One end of each of the four guide rods 25 away from each other is fixedly connected to the corresponding pushing piece 24. A clamping piece 26 is fixedly mounted at one end of each of the four guide rods 25 close to each other. Third servo motors are fixedly mounted on the outer wall of one side of each of the two second concave seats 22. The output shafts of the two third servo motors are respectively fixedly connected to one end of the two second bidirectional lead screws 23. Through the operation of the third servo motors, the corresponding two clamping pieces 26 can approach each other, and finally clamp the blade on the front and rear sides thereof.

[0044] In the present embodiment, in order to shield and protect the middle part of the blade, a mother protection frame 28 and two sub-protection frames 29 are provided between the first elbow-shaped frame 12 and the second elbow-shaped frame 13, the mother protection frame 28 is located between the two sub-protection frames 29, and a connecting partition 27 is fixed on the top inner wall of the cargo box 2, the first bidirectional lead screw 3 penetrates the connecting partition 27 and is movably connected with the connecting partition 27, a movable opening is provided on the connecting partition 27, and the electric push rod 11 is provided through the movable opening, and the two do not interfere with each other, a bearing frame 30 is fixed at the bottom of the connecting partition 27, a socket 31 is provided at the bottom, a socket 32 ​​is fixed at the top of the mother protection frame 28, the top of the socket 32 ​​penetrates the socket 31 and extends into the bearing frame 30, and a blocking ring is fixed on the socket 32, the blocking ring is in contact with the bottom of the bearing frame 30, so as to ensure that the socket 32 The fixed point is inserted into the socket 31, and a leading groove 33 is opened on one side of the socket 32. The same third bidirectional lead screw 34 is rotatably installed on both sides of the supporting frame 30, and two first connecting plates 35 are threadedly installed thereon, and the sides of the two first connecting plates 35 close to each other are fixed with first plug rods 36, and the sides of the two first plug rods 36 close to each other extend into the leading groove 33, so that the socket 32 ​​can be fixed in the socket 31, and the two first plug rods 36 are respectively slidably connected to the two sides of the supporting frame 30, and a driving shaft 37 is rotatably installed in the supporting frame 30, and a second driving gear is fixedly sleeved on the driving shaft 37, and a second driven gear is fixedly sleeved on the third bidirectional lead screw 34, and the second driving gear and the second driven gear are meshed, and a fourth servo motor is fixed on the outer wall of one side of the supporting frame 30, and its output shaft is fixedly connected to one end of the driving shaft 37.

[0045] In addition, first buckle grooves 38 are provided on both sides of the mother protective frame 28, second buckle grooves 39 are provided on the sides of the two sub-protective frames 29 that are away from each other, buckle plates 40 are fixed on the sides of the two sub-protective frames 29 that are close to each other, and the sides of the two buckle plates 40 that are close to each other extend into the two first buckle grooves 38 respectively, and the buckle plates 40 are adapted to the first buckle grooves 38 and the second buckle grooves 39, and the tops of the two buckle plates 40 are provided with card slots, and the tops of the two sub-protective frames 29 are fixed with cross-connecting plates 41, and lifting studs are threadedly installed on the two cross-connecting plates 41 42, the bottom ends of the two lifting studs 42 are rotatably installed with vertical clamping plates 43, the bottoms of the two vertical clamping plates 43 extend into the two clamping grooves respectively, and the two vertical clamping plates 43 are slidably connected to the top of the mother protective frame 28. In addition, limiting rods are fixed on the tops of the two vertical clamping plates 43, and the tops of the two limiting rods pass through the two cross-connecting plates 41 respectively and are slidably connected to the corresponding cross-connecting plates 41, and adapter ports are opened on the tops of the two sub-protective frames 29, and the two adapter ports are respectively connected to the two second buckle grooves 39, and the vertical clamping plates 43 are adapted to the adapter ports.

[0046] In this method, in order to ensure smooth and stable sliding between the blade and the first concave seat 17 and the limit box 18, a plurality of balls are inlaid on the inner walls of the bottoms of the first concave seat 17 and the limit box 18, and the blade can contact the balls when entering the first concave seat 17 and the limit box 18.

[0047] In this embodiment:

[0048] It needs to be used in conjunction with an external crane device. Four connection ears distributed in a matrix are fixed on the connecting cross beam 1. When in use, the lifting ropes on the crane are respectively hung on the four connection ears, so as to be able to lift the connecting cross beam 1;

[0049] Moreover, the number of the sub-protection frames 29 in this embodiment can be selected according to the length of the wind power blade, and the mother protection frame 28 is not installed on the bearing frame 30. Before hoisting, the wind power blade is on a support frame, and the support frame is in the middle part of the blade, while both ends of the wind power blade are in a state without objects. In addition, in the initial state, the output shaft of the electric push rod 11 is in the extended state;

[0050] When the blade needs to be hoisted, first adjust the distance between the first concave seat 17 and the limit box 18 according to the length of the blade. When adjusting, first start the first servo motor in the forward direction, and its output shaft drives the first bidirectional lead screw 3 to rotate. At this time, the first connecting folding plate 4 and the second connecting folding plate 5 start to move relative to each other, so that the distance between the first concave seat 17 and the limit box 18 changes. After the distance between the two is adjusted to a roughly appropriate distance, turn off the first servo motor. Then, move the first concave seat 17 and the limit box 18 below the blade, and then start the crane to slowly lift the connecting cross beam 1 until the blade enters the first concave seat 17 and the limit box 18 and contacts the balls, and then stop lifting;

[0051] At this time, both ends of the blade have not yet contacted the inner wall of one side of the limit box 18 and the sealing plate 20. Then, start the first servo motor again to make the first connecting folding plate 4 and the second connecting folding plate 5 approach each other, and finally make both sides of the blade contact the inner wall of one side of the limit box 18 and the sealing plate 20 respectively. Immediately, start the two third servo motors in the forward direction, so that the corresponding two clamping pieces 26 approach each other, and finally push the blade to the middle position between the first concave seat 17 and the limit box 18 and form clamping and positioning for the blade;

[0052] After that, first take out the mother protection frame 28, put it on the blade first, then move the installation socket 32 below the installation socket 31 and lift it up, insert it into the installation socket 31, and then start the fourth servo motor in the forward direction, so that the third bidirectional lead screw 34 starts to rotate, and finally bring the two first plug rods 36 into the through groove 33 to complete the installation of the mother protection frame 28. Subsequently, take out the corresponding number of sub-protection frames 29, and then insert the buckling plates 40 on two of the sub-protection frames 29 into the first buckling grooves 38 on both sides of the mother protection frame 28 respectively, and turn the two lifting studs 42 to bring the corresponding vertical clamping plates 43 into the corresponding clamping grooves. After that, among the remaining sub-protection frames 29, install the latter sub-protection frame 29 on the former sub-protection frame 29, and install them in a diffusing manner on both sides in sequence with the mother protection frame 28 as the center until all are installed. At this time, the blade is surrounded by the mother protection frame 28 and the sub-protection frames 29;

[0053] Subsequently, start the two second servo motors. Through the meshing of the first driving gear and the first driven gear, the two internal thread sleeves 14 rotate, and then the two lifting lead screws 15 drive the corresponding upper pressing plates 16 to descend, and finally the upper pressing plates 16 contact the top of the blade. At this time, the all-round positioning protection of the blade is completed, and then it can be lifted;

[0054] After the blade is lifted to the specified installation height, reverse-start the two second servo motors to separate the upper pressing plate 16 from the blade, and then reverse-start the third servo motor to separate the clamping piece 26 from the blade. Subsequently, start the first electric slide rail 19, and the slider on it drives the sealing plate 20 to descend, so that one side opening of the first concave seat 17 is completely opened, and the installation port of the blade is exposed. Then start the output shaft of the electric push rod 11 to retract, so that the first connecting frame 9 moves towards the second connecting frame 10, so that the installation port of the blade protrudes from one side of the first concave seat 17. Subsequently, move the hoisting machine to insert the installation port into the main structure of the wind power blade and fix it;

[0055] Compared with the related technology, the wind power blade hoisting tooling provided by the present invention has the following beneficial effects:

[0056] First, by setting the first concave seat 17 and the limit box 18, the wind power blade can be supported from both ends, which can avoid the accidental situation of the blade falling during hoisting. Moreover, by setting the sealing plate 20, the clamping piece 26 and the upper pressing plate 16, a stable clamping effect can be formed on the blade, so as to ensure that the blade will not shake during hoisting and improve the hoisting stability;

[0057] II. By means of the provided first bidirectional lead screw 3, first connecting folding plate 4 and second connecting folding plate 5, the hoisting work of wind power blades with different lengths can be carried out, and the applicable range is relatively wide. In addition, the middle part of the blade is surrounded and protected by the mother protection frame 28 and the son protection frame 29, so that the wind power blade will not collide and rub with external objects during the hoisting process, thereby protecting the blade and ensuring the integrity of its appearance.

[0058] Second Embodiment:

[0059] Based on the wind power blade hoisting tooling provided in the first embodiment of the present application, the second embodiment of the present application proposes another wind power blade hoisting tooling. The second embodiment is only a preferred manner of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0060] The following further describes the second embodiment of the present invention in conjunction with the drawings and the embodiments.

[0061] Please refer to Figures 12 - 16 , the wind power blade hoisting tooling further includes a support platform 44, the support platform 44 is arranged on the side of the limit box 18 away from the first concave seat 17, two second electric slide rails 45 are fixed on the top of the support platform 44, and the same rectangular frame sleeve 46 is fixed on the sliders of the two second electric slide rails 45. The bottom and the top of the rectangular frame sleeve 46 are rotatably installed with the same rotating column 47. The top end of the rotating column 47 extends above the rectangular frame sleeve 46 and is fixed with a rotating platform 48. And a linkage rod is rotatably installed on the inner wall of one side of the rectangular frame sleeve 46. Bevel gears are fixedly sleeved on both the linkage rod and the rotating column 47, and the two bevel gears are meshed with each other. A fifth servo motor is fixed on the outer wall of one side of the rectangular frame sleeve 46, and its output shaft is fixedly connected with one end of the linkage rod. Starting the fifth servo motor can drive the rotating platform 48 to rotate, so that the angle of the wind power blade can be changed. Two vertical guide rods 49 are fixed on the top of the rotating platform 48, and the same lifting platform 50 is slidably installed on the two vertical guide rods 49. An engagement groove 51 is opened on the side of the lifting platform 50 close to the limit box 18. A clamping folding plate 52 is fixed on the top of the engagement cross beam 1. The bottom of the clamping folding plate 52 extends into the engagement groove 51. And positioning blind holes 53 are opened on both sides of the clamping folding plate 52. A fourth bidirectional lead screw 54 is rotatably installed on the lifting platform 50. Two second connecting plates 55 are threadedly installed on the fourth bidirectional lead screw 54. Second insertion rods 56 are fixed on the sides of the two second connecting plates 55 close to each other. One ends of the two second insertion rods 56 close to each other respectively extend into the two positioning blind holes 53, and the second insertion rods 56 are slidably connected with the lifting platform 50, so that the clamping folding plate 52 can be integrated with the lifting platform 50, and further can be limited by the vertical guide rods 49, so that the blade can be lifted and lowered linearly during the hoisting process.

[0062] In the above method, in order to make the lifting platform 50 stationary when not in use, two setscrews are threadedly installed on one side of the lifting platform 50. When not in use, the two setscrews are screwed to abut against the two vertical guide rods 49 respectively, so as to form a positioning effect. And a hollow seat 57 is fixed at the bottom of the support platform 44. Two hydraulic cylinders 58 located inside the hollow seat 57 are fixed at the bottom of the support platform 44. The output shafts of the two hydraulic cylinders 58 are fixed with the same connecting plate 59. Four Fulmar wheels 60 distributed in a matrix are fixed at the bottom of the connecting plate 59. By the extension of the output shafts of the hydraulic cylinders 58, the Fulmar wheels 60 can contact the ground and lift the hollow seat 57 off the ground, thus forming a moving effect.

[0063] In this embodiment:

[0064] In the initial state, the clamping folding plate 52 is not in the connecting groove 51;

[0065] In order to prevent the blade from swaying due to the suspension rope during the hoisting process, the output shafts of the two hydraulic cylinders 58 can be first started to extend, so that the connecting plate 59 drives the four Fulmar wheels 60 to descend, and finally lift the hollow seat 57 off the ground. Then move the support platform 44 and move it to the side of the wind power generating main structure. Subsequently, start the output shafts of the hydraulic cylinders 58 to retract, and make the hollow seat 57 contact the ground again;

[0066] Subsequently, place the clamping folding plate 52 in the connecting groove 51, and then rotate the fourth bidirectional lead screw 54 to make the two second connecting plates 55 approach each other. Finally, make the two second insertion rods 56 respectively insert into the corresponding positioning blind holes 53, so as to form a clamping effect between the clamping folding plate 52 and the lifting platform 50. Then start the hoisting work. During the hoisting process, through the cooperation of the lifting platform 50 and the vertical guide rods 49, the lifted blade can rise linearly. After the blade is hoisted to the specified height, if its angle deviates slightly, the fifth servo motor can be started, and its output shaft drives the linkage rod to rotate. Through the meshing of the two bevel gears, the rotating column 47 drives the rotating platform 48 to rotate, so that the angle between the blade and the wind power generating main structure can be changed. Subsequently, start the two second electric slide rails 45 to make the blade move towards the installation position, and finally form a butt joint.

[0067] The present invention also provides a method for hoisting a wind power blade, including the following steps:

[0068] S1. Position the wind turbine blade: Start the first servo motor in the forward direction. Its output shaft drives the first bidirectional lead screw 3 to rotate, changing the distance between the first concave seat 17 and the limit box 18. Stop the first servo motor after adjusting the distance between them to a roughly appropriate value. Then, move the first concave seat 17 and the limit box 18 below the blade. Start the crane to slowly lift the connecting cross beam 1 until the blade enters the first concave seat 17 and the limit box 18 and contacts the balls, and then stop lifting.

[0069] S2. Fix the wind turbine blade: Start the first servo motor to make both sides of the blade contact the inner wall of one side of the limit box 18 and the sealing plate 20 respectively. Start the two third servo motors in the forward direction to make the corresponding two clamping pieces 26 approach each other and finally contact the blade to form clamping and positioning. Start the two second servo motors, and the two internal thread sleeves 14 rotate. The two lifting lead screws 15 drive the corresponding upper pressing pieces 16 to descend. Finally, the upper pressing pieces 16 contact the top of the blade to form a positioning effect on the blade.

[0070] S3. Protect the wind turbine blade: Put the mother protection frame 28 on the blade. Move the installation socket 32 below the installation socket 31 and lift it up to insert it into the installation socket 31. Start the fourth servo motor in the forward direction, and the third bidirectional lead screw 34 starts to rotate. The two first insertion rods 36 are inserted into the through slots 33. Take out the corresponding number of sub - protection frames 29. Insert the buckling plates 40 on two of the sub - protection frames 29 into the first buckling slots 38 on both sides of the mother protection frame 28 respectively. Rotate the two lifting studs 42, and the corresponding vertical clamping plates 43 enter the corresponding clamping slots. Then, install the latter sub - protection frame 29 on the former sub - protection frame 29 and install them sequentially and diffusely to both sides with the mother protection frame 28 as the center until all are installed. Then, carry out the lifting work.

[0071] The above are only embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A hoisting tool for a wind turbine blade, including a connecting cross beam, characterized in that, A storage box is fixedly installed at the bottom of the connecting cross beam. A first double lead screw is rotatably installed in the storage box. A first servo motor is fixedly installed on an outer wall of one side of the storage box. An output shaft of the first servo motor is fixedly connected to one end of the first double lead screw. A first connecting folding plate and a second connecting folding plate are threadedly installed on the first double lead screw. A fixed sliding frame is fixedly installed at the bottom of the first connecting folding plate. A positioning sliding rod is fixedly installed in the fixed sliding frame. A linkage block is slidably installed on the positioning sliding rod. A first connecting frame is fixedly installed at the bottom of the linkage block. A second connecting frame is fixedly installed at the bottom of the second connecting folding plate. A first U-shaped frame is fixedly installed at the bottom of the first connecting frame. A second U-shaped frame is fixedly installed at the bottom of the second connecting frame. The same first concave seat is fixedly installed on both inner walls of the first U-shaped frame. The same limiting box is fixedly installed on both inner walls of the second U-shaped frame. The top of the limiting box and one side close to the first concave seat are both provided with openings. A first electric slide rail is arranged below the first concave seat. A blocking plate is fixedly installed on a slider of the first electric slide rail. The blocking plate is in contact with a side of the first concave seat away from the limiting box.

2. The wind power blade hoisting tooling according to claim 1, wherein, An electric push rod is fixedly installed at the bottom of the fixed sliding frame. An output shaft of the electric push rod is fixedly connected to the first connecting frame.

3. The wind turbine blade hoisting tooling according to claim 2, characterized in that, Inner threaded sleeves are rotatably installed at the bottoms of the first connecting frame and the second connecting frame respectively. Lifting lead screws are threadedly installed in the two inner threaded sleeves respectively. Bottom ends of the two lifting lead screws respectively extend into the first U-shaped frame and the second U-shaped frame, and are movably connected to tops of the first U-shaped frame and the second U-shaped frame respectively. Upper pressing pieces are fixedly installed at bottom ends of the two lifting lead screws. First driven gears are fixedly sleeved on the two inner threaded sleeves respectively. The two first driven gears respectively penetrate through the first connecting frame and the second connecting frame, and are movably connected to the first connecting frame and the second connecting frame respectively. Second servo motors are fixedly installed on outer walls of the first connecting frame and the second connecting frame close to each other. First driving gears are fixedly sleeved on output shafts of the two second servo motors. The two first driving gears are respectively meshed with the two first driven gears.

4. The wind turbine blade hoisting tooling according to claim 3, wherein The bottoms of the first concave seat and the limit box are both fixedly installed with bridging plates. The bottoms of the two bridging plates are both fixedly installed with second concave seats. The bottoms of the two second concave seats are both fixedly installed with two roller legs. The first electric slide rail is fixedly connected to the second concave seat close to the first concave seat. Two second bidirectional lead screws are rotatably installed in the two second concave seats respectively. The two second bidirectional lead screws respectively penetrate through the two bridging plates and are movably connected to the corresponding bridging plates. Two pushing pieces are threadedly installed on each of the two second bidirectional lead screws. Guide rods are slidably installed on both sides of the first concave seat and both sides of the limit box. One end of each of the four guide rods away from each other is fixedly connected to the corresponding pushing piece. One end of each of the four guide rods close to each other is fixedly installed with a clamping piece. Third servo motors are fixedly installed on the outer wall of one side of each of the two second concave seats. The output shafts of the two third servo motors are respectively fixedly connected to one end of the two second bidirectional lead screws.

5. The wind turbine blade hoisting tooling according to claim 4, characterized in that, A mother protection frame and two child protection frames are arranged between the first U-shaped frame and the second U-shaped frame. The mother protection frame is located between the two child protection frames.

6. The wind turbine blade hoisting tooling according to claim 5, characterized in that, A connecting partition is fixedly installed on the inner wall of the top of the storage box. The first bidirectional lead screw penetrates through the connecting partition and is movably connected to the connecting partition. An activity port is opened on the connecting partition. The electric push rod penetrates through the activity port and is movably connected to the inner wall of the activity port. A bearing frame body is fixedly installed at the bottom of the connecting partition. An insertion socket is opened at the bottom of the bearing frame body. An insertion seat is fixedly installed at the top of the mother protection frame. The top of the insertion seat penetrates through the insertion socket and extends into the bearing frame body. A through groove is opened on one side of the insertion seat. The same third bidirectional lead screw is rotatably installed on both sides of the bearing frame body. Two first connecting plates are threadedly installed on the third bidirectional lead screw. First insertion rods are fixedly installed on one side of each of the two first connecting plates close to each other. One side of each of the two first insertion rods close to each other extends into the through groove, and the two first insertion rods are respectively slidably connected to both sides of the bearing frame body. A driving rotating shaft is rotatably installed in the bearing frame body. A second driving gear is fixedly sleeved on the driving rotating shaft. A second driven gear is fixedly sleeved on the third bidirectional lead screw. The second driving gear and the second driven gear are meshed with each other. A fourth servo motor is fixedly installed on the outer wall of one side of the bearing frame body. The output shaft of the fourth servo motor is fixedly connected to one end of the driving rotating shaft.

7. The wind turbine blade hoisting tooling according to claim 6, characterized in that, Both sides of the mother protection frame are provided with first buckling grooves. Both sides of the two sub-protection frames, which are far away from each other, are provided with second buckling grooves. On both sides of the two sub-protection frames, which are close to each other, buckling plates are fixedly installed. The sides of the two buckling plates, which are close to each other, respectively extend into the two first buckling grooves, and the buckling plates are adapted to the first buckling grooves and the second buckling grooves. Card slot positions are provided at the tops of the two buckling plates. On the tops of the two sub-protection frames, cross connecting plates are fixedly installed. Lift screw columns are threadedly installed on the two cross connecting plates. At the bottom ends of the two lift screw columns, vertical clamping plates are rotatably installed. The bottom ends of the two vertical clamping plates respectively extend into the two card slot positions, and the two vertical clamping plates are both slidably connected to the top of the mother protection frame. Adaptation openings are provided at the tops of the two sub-protection frames, and the two adaptation openings are respectively communicated with the two second buckling grooves. The vertical clamping plates are adapted to the adaptation openings.

8. The wind power blade hoisting tooling according to claim 1, wherein, On one side of the limit box away from the first concave seat, there is a support platform. On the top of the support platform, two second electric slide rails are fixedly installed. On the sliders of the two second electric slide rails, the same rectangular frame sleeve is fixedly installed. At the bottom and top of the rectangular frame sleeve, the same rotating column is rotatably installed. The top end of the rotating column extends above the rectangular frame sleeve and is fixedly installed with a rotating platform. On the top of the rotating platform, two vertical guide rods are fixedly installed. On the two vertical guide rods, the same lifting platform is slidably installed. On one side of the lifting platform close to the limit box, an engagement groove is provided. On the top of the engagement cross beam, a clamping folding plate is fixedly installed. The bottom of the clamping folding plate extends into the engagement groove. Positioning blind holes are provided on both sides of the clamping folding plate. On the lifting platform, a fourth bidirectional lead screw is rotatably installed. On the fourth bidirectional lead screw, two second connecting plates are threadedly installed. On the sides of the two second connecting plates, which are close to each other, second insertion rods are fixedly installed. The ends of the two second insertion rods, which are close to each other, respectively extend into the two positioning blind holes, and the second insertion rods are slidably connected to the lifting platform. On one inner wall of the rectangular frame sleeve, a linkage rod is rotatably installed. On the linkage rod and the rotating column, bevel gears are fixedly sleeved, and the two bevel gears are meshed with each other. On one outer wall of the rectangular frame sleeve, a fifth servo motor is fixedly installed. The output shaft of the fifth servo motor is fixedly connected to one end of the linkage rod.

9. The wind turbine blade hoisting tooling according to claim 8, wherein On one side of the lifting platform, two setscrews are threadedly installed. At the bottom of the support platform, a hollow seat is fixedly installed. At the bottom of the support platform, two hydraulic cylinders located in the hollow seat are fixedly installed. On the output shafts of the two hydraulic cylinders, the same connecting plate is fixedly installed. At the bottom of the connecting plate, four fulmar wheels are fixedly installed in a matrix distribution.

10. A hoisting method using the wind power blade hoisting tooling as described in claim 7, characterized in that, Including the following steps: S1. Position the wind turbine blade: Start the first servo motor in the forward direction. Its output shaft drives the first double lead screw to rotate, changing the distance between the first concave seat and the limit box until the distance between the two is adjusted to a roughly appropriate distance, then turn off the first servo motor. Subsequently, move the first concave seat and the limit box below the blade, start the crane to slowly lift the connecting cross beam until the blade enters the first concave seat and the limit box and contacts the ball, then stop lifting. S2. Fix the wind turbine blade: Start the first servo motor so that both sides of the blade contact one inner wall of the limit box and the sealing plate respectively. Start the two third servo motors in the forward direction, making the corresponding two clamping pieces approach each other and finally contact the blade to form clamping and positioning. Start the two second servo motors, the two internal thread sleeves rotate, and the two lifting lead screws drive the corresponding upper pressing plates to descend. Finally, the upper pressing plates contact the top of the blade, forming a positioning effect on the blade. S3. Protect the wind turbine blade: Put the female protection frame on the blade. Move the installation socket below the installation slot and lift it up, then insert it into the installation slot. Start the fourth servo motor in the forward direction, the third double lead screw starts to rotate, and the two first insertion rods are inserted into the through slots. Take out the corresponding number of sub - protection frames, insert the buckling plates on two of the sub - protection frames into the first buckling slots on both sides of the female protection frame respectively, turn the two lifting studs, and the corresponding vertical clamping plates enter the corresponding clamping slots. Then, install the latter sub - protection frame on the former one and install them sequentially to both sides centered on the female protection frame until all are installed. Then, carry out the lifting work.

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