Auxiliary device for hoisting wind power generation blade

Abstract

The invention belongs to the technical field of wind power generation, and particularly relates to a wind power generation blade hoisting auxiliary device which comprises a combined head and a base block, and the combined head is attached to the base block. The laser radar located on the base block is started to detect the induction points on the combined head, when the distances detected in different directions are all larger than the threshold value, hoisting equipment needs to make the combined head get close, and when the distance detected by the laser radar in a certain direction is smaller than the threshold value, hoisting equipment needs to make the combined head get close. The rope collecting assembly is started preferentially to close the distance between the base block and the combined head, the electromagnet in the corresponding direction is started in combination with the distances detected by the laser radars in different directions and the direction with the largest distance difference, then the electromagnet guides the adsorption ring, the combined head is made to be completely attached to the base block along the construction inclination angle, and the construction efficiency is improved. Auxiliary installation during installation of the wind power blade and the wind driven generator in mountainous regions and on the sea is facilitated, and installation of the wind power blade and the wind driven generator can be completed by adapting to construction of an inclination angle.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation, and in particular to a wind power generation blade hoisting auxiliary device. Background Art

[0002] The design of wind turbine blades directly affects the wind energy conversion efficiency and the annual power generation, and is an important part of wind energy utilization.

[0003] At present, the installation of existing wind turbine blades is completed on the ground. The three wind turbine blades are installed through the combination head and then hoisted and connected to the shaft of the wind turbine generator to form an integral hoisting. The hoisting of the whole and the wind turbine tower body are both vertical. However, with the construction of wind power, there are fewer and fewer places where wind power can be built on flat land, and there are more and more wind power construction in mountainous areas and Shanghai. This leads to the need for an inclination angle of 1°-5° for the hoisting of the whole and the wind turbine tower body during installation, which brings difficulties to the hoisting work. When the hoisting equipment is used, it is difficult to form an effective angle for the combination head with three wind turbine blades to adapt the installation. Often, the bottom of the two are aligned and closed, but there is still a gap at the top. If the thrust is applied entirely by the hoisting equipment, it is easy to cause installation risks of the fan blade and wind turbine combination.

[0004] Therefore, we propose a wind turbine blade lifting auxiliary device, which is conducive to assisting the installation of wind turbine blades and wind turbines in mountainous areas and at sea, and is conducive to adapting to the construction inclination angle to complete the installation of wind blades and wind turbines. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a wind power generation blade hoisting auxiliary device to solve the problems existing in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wind turbine blade hoisting auxiliary device, comprising a combination head and a base block, wherein the combination head and the base block are fitted together so that a fixing sleeve in the combination head and a generator shaft in the base block are connected, multiple groups of rope collecting components are respectively installed at various positions on the inner wall of the base block, the combination head is provided with an adapter block corresponding to the rope collecting component, and the adapter block is provided with a tightening hole for tying a rope body of the rope collecting component;

[0007] The outer wall of the base block is provided with an annular concave traction ring, and a plurality of electromagnets are installed at various positions along the annular shape on the back of the traction ring. The outer wall of the combination head is provided with an annular convex adsorption ring adapted to the traction ring, and the magnetic force generated by the electromagnet engages the adsorption ring through the traction ring;

[0008] Laser radars are installed at various positions on the inner wall of the base block, and sensing points corresponding to the positions of the laser radars are arranged on the outer wall of the combination head. The laser radars detect the distance and angle deviation from the sensing points.

[0009] The rope collecting component located in the base block pulls the combined head, and when the laser radar detects that the distance to the sensing point reaches a threshold, the laser radar detects the distance and angle to the sensing point and activates the rope collecting components and electromagnets in different directions respectively.

[0010] Furthermore: the total number of rope collecting components is an even number, and each two groups of rope collecting components are respectively located at two symmetrical points on the inner wall of the base block. The rope collecting motor of the rope collecting component is connected to a rope reel, and a rope body is wrapped around the outer wall of the rope reel. The rope body passes through the rope collecting hole of the adapter block and is knotted, and the rope collecting motor has overload protection.

[0011] Further: when the laser radar in any direction detects that the distance and angle are greater than the threshold, the rope collecting component and electromagnet in the corresponding direction are activated.

[0012] Furthermore: a reinforcement ring is fixed to the outer wall of the combination head, reinforcement holes are arranged around the outer wall of the reinforcement ring, and reinforcement screw holes are arranged on the outer wall of the base block at positions corresponding to the reinforcement holes.

[0013] Furthermore: a correction groove is opened on one side of the traction ring, a spring cylinder passes through a sliding block sliding inside the correction groove, a positioning point is set on the outer wall of the combination head corresponding to the position of the correction groove, and the spring cylinder unfolds and engages the positioning point.

[0014] Further: a swing arm assembly is installed on the outer wall of the generator shaft, a recessed fixing groove is opened on the generator shaft, a hoop of the swing arm assembly is engaged with the outer wall of the generator shaft, a block corresponding to the fixing groove is arranged on the inner wall of the hoop, a support arm is connected to the outer wall of the hoop, and the bottom of the support arm is connected to one end of the spring cylinder.

[0015] Further: the laser radar ranging distance is less than the threshold value, and the laser radar detection sensing point angle has a deviation, the spring cylinder is stuck in the corresponding positioning point, and the spring cylinder is used to correct and adjust the combination head angle along the ring.

[0016] Furthermore: three blade installation grooves are evenly arranged around the outer wall of the combination head, and wind turbine blades are nested and installed inside the blade installation grooves. The wind turbine blades rotate with the fixing sleeve.

[0017] Compared with the prior art, the technical effects and advantages of the present invention are as follows:

[0018] 1) The wind turbine blade hoisting auxiliary device of the present invention, through the arrangement of laser radar, sensing point, rope collection assembly and electromagnet, starts the laser radar located on the base block to detect the sensing point on the combination head. When the distances detected at different directions are all greater than the threshold, the hoisting equipment is required to move the combination head closer. When the distance detected by the laser radar at a certain direction is less than the threshold, the rope collection assembly is preferentially started to shorten the distance between the base block and the combination head. In combination with the distances detected by the laser radars at different directions, the electromagnet at the corresponding direction with the largest distance difference is started, and then the electromagnet guides the adsorption ring so that the combination head is completely attached to the base block along the construction inclination angle, which is beneficial to the auxiliary installation of wind turbine blades and wind turbines in mountainous areas and at sea, and is beneficial to complete the installation of wind blades and wind turbines by adapting to the construction inclination angle.

[0019] 2) The wind turbine blade lifting auxiliary device of the present invention, through the arrangement of laser radar, sensing points, and swing arm components, when the base block and the combination head are fully fitted, there will still be deviations between the reinforcement holes of the base block and the reinforcement screw holes of the combination head. The spring cylinder is slid in the correction groove so that the spring cylinder is inserted into the positioning point corresponding to the combination head. The generator shaft is started by manpower or by starting the generator, so that the combination head is angularly offset along the arc-shaped correction groove until the reinforcement holes and the reinforcement screw holes are aligned. This is helpful in assisting the alignment of the fixing holes when installing the wind turbine blades and the wind turbine generator, and is helpful in avoiding the problem of difficulty in inserting the fixing screws due to deviations between the reinforcement holes and the reinforcement screw holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the base block structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the base block and the swing arm assembly of the present invention;

[0023] Figure 4 It is a schematic diagram of the internal structure of the base block of the present invention;

[0024] Figure 5 It is a schematic diagram of the swing arm assembly and the generator shaft structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the swing arm assembly of the present invention;

[0026] Figure 7 It is a schematic diagram of the electromagnet structure of the present invention;

[0027] Figure 8 It is a schematic structural diagram of the rope collecting component of the present invention.

[0028] The accompanying drawings are marked as follows: 1. combination head; 11. reinforcement screw hole; 12. sensing point; 13. positioning point; 2. reinforcement ring; 21. adapter block; 22. tightening hole; 3. blade mounting groove; 4. adsorption ring; 5. fixing sleeve; 6. traction ring; 61. correction groove; 62. electromagnet; 7. base block; 71. reinforcement hole; 72. laser radar; 73. rope collecting component; 731. rope body; 732. rope reel; 733. rope collecting motor; 8. generator shaft; 81. fixing groove; 9. swing arm assembly; 91. hoop; 92. block; 93. support arm; 94. spring cylinder; 95. slider. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the structures involved in the present invention are not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0030] Example:

[0031] See also Figure 1-8 , the present invention provides a technical solution: a wind power blade hoisting auxiliary device, comprising a combination head 1 and a base block 7, wherein the combination head 1 and the base block 7 are fitted together so that a fixing sleeve 5 in the combination head 1 and a generator shaft 8 in the base block 7 are connected;

[0032] Three blade mounting grooves 3 are evenly arranged around the outer wall of the combination head 1, and wind turbine blades are nested and installed inside the blade mounting grooves 3. The wind turbine blades rotate with the fixing sleeve 5. In the existing installation method, the three wind turbine blades are installed on the ground corresponding to the blade mounting grooves 3 of the combination head 1, and the hoisting equipment hoists the entire body together for installation.

[0033] Among them, a reinforcement ring 2 is fixed to the outer wall of the combination head 1, and a reinforcement hole 71 is arranged around the outer wall of the reinforcement ring 2. A reinforcement screw hole 11 is arranged on the outer wall of the base block 7 at the position corresponding to the reinforcement hole 71; after the combination head 1 and the base block 7 are fitted together, the fixing screw needs to be passed through the reinforcement screw hole 11 and the reinforcement hole 71 and fixed by bolts.

[0034] It should be noted that when installing in mountainous areas or at sea, due to the tilt angle, when the combination head 1 and the base block 7 are fitted together, the bottoms of the two are often already fitted together, but the tops of the two are still open due to the tilt angle;

[0035] A plurality of groups of rope-collecting components 73 are respectively installed at various positions on the inner wall of the base block 7. The combination head 1 is provided with an adapter block 21 corresponding to the rope-collecting component 73, and a tightening hole 22 is provided on the adapter block 21 for tying a rope body 731 of the rope-collecting component 73. The rope-collecting component 73 is used to form traction on the combination head 1 in the hoisting state, so as to reduce the shaking of the combination head 1 in the hoisting state, and when the rope-collecting component 73 reels the rope body 731, the combination head 1 and the bottom of the base block 7 are kept in contact with each other.

[0036] The total number of rope collecting components 73 is an even number. In the preferred case, there should be no less than 4 groups of rope collecting components 73. The 4 groups of rope collecting components are respectively arranged at four positions: lower left, upper left, lower right and upper right. Every two groups of rope collecting components 73 are respectively located at two symmetrical points on the inner wall of the base block 7. The symmetrically arranged rope collecting components 73 make the rope collecting components 73 pull the combination head 1 more evenly when winding. The rope collecting motor 733 of the rope collecting component 73 is connected to a rope reel 732. The outer wall of the rope reel 732 is wrapped with a rope body 731. The rope body 731 passes through the rope collecting hole of the adapter block 21 and is knotted. The rope collecting motor 733 has overload protection. When a strong wind appears, the rope body 731 is tightened and the rope collecting motor 733 is overloaded. Then, the rope collecting motor 733 is stopped and can be reversed, so that the rope reel 732 is reversed to loosen the rope body 731, thereby avoiding overburning of the rope collecting motor 733.

[0037] An annular concave traction ring 6 is provided on the outer wall of the base block 7, and a plurality of electromagnets 62 are installed on the back side of the traction ring 6 in various directions along the ring, and the plurality of electromagnets 62 are distributed in a U shape. An annular convex adsorption ring 4 adapted to the traction ring 6 is provided on the outer wall of the combination head 1. The magnetic force generated by the electromagnet 62 engages the adsorption ring 4 through the traction ring 6. When the base block 7 and the combination head 1 are close enough, the electromagnet 62 is started so that the protruding adsorption ring 4 of the combination head 1 is engaged with the corresponding concave traction ring 6 of the base block 7 under the traction of the magnetic force. The combination head 1 is relatively stable through the concave-convex structure and the inclination angle between the combination head 1 and the base block 7. However, there is still a problem that there is a deviation between the reinforcement hole 71 and the reinforcement screw hole 11.

[0038] Laser radars 72 are installed at four positions on the inner wall of the base block 7. The four positions can refer to the four positions of up, down, left and right. The outer wall of the combination head 1 is provided with sensing points 12 corresponding to the positions of the laser radars 72. The laser radars 72 detect the distance and angle deviation from the sensing points 12. The laser radars 72 at four positions detect the four-point distances between the base block 7 and the combination head 1.

[0039] When the laser radar 72 in any direction detects that the distance and angle are greater than the threshold, the rope collecting component 73 and the electromagnet 62 in the corresponding direction are started; in combination with actual conditions, after the bottoms of the two are completely fitted together, there are still distance differences in the left, right and upper directions.

[0040] The rope collecting component 73 located in the base block 7 pulls the combination head 1, and when the laser radar 72 detects that the distance to the sensing point 12 reaches a threshold, the laser radar 72 detects the distance and angle to the sensing point 12, and respectively starts the rope collecting component 73 and the electromagnet 62 in different directions. At the same time, the laser radar 72 detects the angle of deviation between the sensing point 12 and the horizontal line, which may be high or low, and then notifies the lifting equipment to make corresponding adjustments to the height of the combination head 1.

[0041] The distance between the base block 7 and the combination head 1 is tightened by activating the rope collecting components 73 in the upper left and upper right positions, and the electromagnet 62 is activated at the same time, so that the electromagnet 62 guides the adsorption ring 4, so that the combination head 1 is completely attached to the base block 7 along the construction tilt angle.

[0042] In another embodiment:

[0043] Among them, the laser radar 72 range measurement distance is less than the threshold value, and the laser radar 72 detects that the angle of the sensing point 12 is deviated, and the spring cylinder 94 is engaged at the corresponding positioning point, and the spring cylinder 94 is used to correct and adjust the angle of the combination head 1 along the ring;

[0044] After the bottom is aligned, the laser radar 72 located above detects the sensing point 12. When the detected distance is less than the threshold, and the laser radar 72 detects that there is a deviation in the angle of the sensing point 12, it means that the reinforcement hole 71 and the reinforcement screw hole 11 are staggered, and the angle of the combination head 1 needs to be adjusted to facilitate the subsequent installation of the fixing screw.

[0045] Among them, a correction groove 61 is opened on one side of the traction ring 6, and a spring cylinder 94 passes through the slider 95 sliding inside the correction groove 61. A positioning point is set on the outer wall of the combination head 1 corresponding to the position of the correction groove 61. The spring cylinder 94 is unfolded and engaged with the positioning point. The correction groove 61 is arc-shaped, and its arc shape is the same as the arc part of the traction ring 6. The spring cylinder 94 is unfolded and engaged with the positioning point.

[0046] The outer wall of the generator shaft 8 is provided with a swing arm assembly 9, and the swing arm assembly 9 pushes the spring cylinder 94 or knocks it, so that the spring cylinder 94 guides the combination head 1 to form an angle deflection along the arc;

[0047] When there is a large gap between the reinforcement hole 71 and the reinforcement screw hole 11, a recessed fixing groove 81 can be opened on the generator shaft 8, and a hoop 91 of the swing arm assembly 9 is engaged with the outer wall of the generator shaft 8. A block 92 corresponding to the fixing groove 81 is arranged on the inner wall of the hoop 91, and a support arm 93 is connected to the outer wall of the hoop 91. The bottom of the support arm 93 is connected to one end of the spring cylinder 94. The generator is started briefly to provide a push to the shaft of the generator, so that the spring cylinder 94 guides the combination head 1 to form an angle deflection along the arc, so as to avoid the situation where human guidance cannot play an effective role when the gap is large.

[0048] When the base block 7 and the combination head 1 are completely fitted together, there will still be a deviation between the reinforcement hole 71 of the base block 7 and the reinforcement screw hole 11 of the combination head 1. The spring cylinder 94 is slid in the correction groove 61 so that the spring cylinder 94 is inserted into the positioning point corresponding to the combination head 1. The generator shaft 8 is started by manpower or by starting the generator, so that the combination head 1 has an angular deviation along the arc-shaped correction groove 61 until the reinforcement hole 71 and the reinforcement screw hole 11 are aligned.

[0049] Working principle in the embodiment of the present invention:

[0050] Three blade installation grooves 3 are evenly arranged around the outer wall of the combination head 1, and wind turbine blades are nested and installed inside the blade installation grooves 3. The three wind turbine blades are installed on the ground corresponding to the blade installation grooves 3 of the combination head 1, and the hoisting equipment hoists the entire unit together for installation.

[0051] The laser radar 72 detects the distance and angle deviation from the sensing point 12, and the laser radar 72 in four directions detects the four-point distance between the base block 7 and the combination head 1;

[0052] When the laser radar 72 in any direction detects that the distance and angle are greater than the threshold, the rope collecting component 73 and the electromagnet 62 in the corresponding direction are activated.

[0053] The symmetrically arranged rope collecting component 73 makes the rope collecting component 73 pull the combined head 1 more evenly when winding. The rope collecting motor 733 of the rope collecting component 73 is connected to the rope reel 732. The outer wall of the rope reel 732 is wound with a rope body 731. The rope body 731 passes through the rope collecting hole of the adapter block 21 and is knotted. The rope collecting motor 733 has overload protection. When a strong wind occurs, the rope body 731 is tightened and the rope collecting motor 733 is overloaded. Then, the rope collecting motor 733 is stopped and can be reversed, so that the rope reel 732 is reversed to loosen the rope body 731.

[0054] The distance between the base block 7 and the combination head 1 is tightened by activating the rope collecting components 73 in the upper left and upper right positions, and the electromagnet 62 is activated at the same time, so that the electromagnet 62 guides the adsorption ring 4, so that the combination head 1 is completely attached to the base block 7 along the construction tilt angle.

[0055] When the bottom is aligned, the laser radar 72 located above detects the sensing point 12. When the detected distance is less than the threshold, and the laser radar 72 detects that there is a deviation in the angle of the sensing point 12, it means that the reinforcement hole 71 and the reinforcement screw hole 11 are staggered, and the angle of the combination head 1 needs to be adjusted;

[0056] A recessed fixing groove 81 is provided through the generator shaft 8, and a hoop 91 of the swing arm assembly 9 is engaged with the outer wall of the generator shaft 8. A block 92 corresponding to the fixing groove 81 is provided on the inner wall of the hoop 91. A support arm 93 is connected to the outer wall of the hoop 91, and the bottom of the support arm 93 is connected to one end of the spring cylinder 94. The generator is started briefly to provide a push to the shaft of the generator, so that the spring cylinder 94 guides the combination head 1 to form an angle deflection along the arc.

[0057] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind turbine blade hoisting auxiliary device, comprising a combination head (1) and a base block (7), wherein the combination head (1) and the base block (7) are fitted together so that a fixing sleeve (5) in the combination head (1) and a generator shaft (8) in the base block (7) are connected, characterized in that: A plurality of groups of rope collecting components (73) are respectively installed at various positions on the inner wall of the base block (7); the assembly head (1) is provided with an adapter block (21) corresponding to the rope collecting component (73); and the adapter block (21) is provided with a tightening hole (22) for tying a rope body (731) of the rope collecting component (73); The outer wall of the base block (7) is provided with an annular concave traction ring (6), and a plurality of electromagnets (62) are installed at various positions along the annular shape on the back of the traction ring (6). The outer wall of the assembly head (1) is provided with an annular convex adsorption ring (4) adapted to the traction ring (6), and the magnetic force generated by the electromagnet (62) engages the adsorption ring (4) through the traction ring (6); Laser radars (72) are installed at various positions on the inner wall of the base block (7), and sensing points (12) corresponding to the positions of the laser radars (72) are arranged on the outer wall of the assembly head (1), and the laser radars (72) detect the distance and angle deviation from the sensing points (12); The rope collecting component (73) is located in the base block (7) to pull the combined head (1), and when the laser radar (72) detects that the distance to the sensing point (12) reaches a threshold value, the laser radar (72) detects the distance and angle to the sensing point (12), and respectively activates the rope collecting components (73) and electromagnets (62) in different directions.

2. The wind turbine blade hoisting auxiliary device according to claim 1, characterized in that: The total number of rope collecting components (73) is an even number, and each two groups of rope collecting components (73) are respectively located at two symmetrical points on the inner wall of the base block (7). A rope collecting motor (733) of the rope collecting components (73) is connected to a rope reel (732), and a rope body (731) is wound around the outer wall of the rope reel (732). The rope body (731) passes through the rope collecting hole of the adapter block (21) and is knotted. The rope collecting motor (733) has overload protection.

3. The wind turbine blade hoisting auxiliary device according to claim 1, characterized in that: When the laser radar (72) in any direction detects that the distance and angle are greater than a threshold value, the rope collecting component (73) and the electromagnet (62) in the corresponding direction are activated.

4. The wind turbine blade hoisting auxiliary device according to claim 1, characterized in that: A reinforcement ring (2) is fixed to the outer wall of the combination head (1), a reinforcement hole (71) is arranged around the outer wall of the reinforcement ring (2), and a reinforcement screw hole (11) is arranged on the outer wall of the base block (7) at a position corresponding to the reinforcement hole (71).

5. The wind turbine blade hoisting auxiliary device according to claim 1, characterized in that: A correction groove (61) is provided on one side of the traction ring (6), a spring cylinder (94) passes through a sliding block (95) that slides inside the correction groove (61), a positioning point (13) is provided on the outer wall of the assembly head (1) at a position corresponding to the correction groove (61), and the spring cylinder (94) is unfolded to engage the positioning point (13).

6. The wind turbine blade hoisting auxiliary device according to claim 5, characterized in that: The outer wall of the generator shaft body (8) is provided with a swing arm assembly (9); the generator shaft body (8) is provided with a recessed fixing groove (81); the outer wall of the generator shaft body (8) is engaged with a hoop (91) of the swing arm assembly (9); the inner wall of the hoop (91) is provided with a clamping block (92) corresponding to the fixing groove (81); the outer wall of the hoop (91) is connected with a support arm (93); the bottom of the support arm (93) is connected to one end of a corresponding spring cylinder (94).

7. The wind turbine blade hoisting auxiliary device according to claim 6, characterized in that: The laser radar (72) measures a distance less than a threshold value, and the laser radar (72) detects an angle deviation of the sensing point (12), and the spring cylinder (94) is engaged with the corresponding positioning point (13), and the spring cylinder (94) is used to correct and adjust the angle of the combination head (1) in a circular manner.

8. The wind turbine blade hoisting auxiliary device according to claim 1, characterized in that: Three blade installation grooves (3) are evenly arranged around the outer wall of the combined head (1), and wind turbine blades are nested and installed inside the blade installation grooves (3). The wind turbine blades rotate along with the fixing sleeve (5).

Images