Tower drum of wind generating set and wind generating set

Abstract

The invention relates to the technical field of wind power generation, and discloses a tower drum of a wind generating set and the wind generating set, the tower drum comprises a ground base frame and a controller, a lower tower drum is fixed at the top of the ground base frame, a thickening ring is fixed outside the top end of the lower tower drum, and a mounting groove is formed in the top end of the thickening ring; a mounting groove is formed in the top of the tower barrel, a linkage ring is rotationally connected into the mounting groove, a supporting ring is fixed to the top of the linkage ring, and a first maintenance assembly is arranged at the top of the supporting ring. Maintenance personnel enter the first lift car and the second lift car, the ladder-shaped frame and the triangular frame drive the maintenance personnel in the first lift car and the second lift car to move correspondingly, so that the maintenance personnel comprehensively maintain the lower tower drum and the upper tower drum, and the maintenance personnel are located in the first lift car and the second lift car in the whole maintenance process; and thus, the safety and comprehensiveness of maintenance are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a tower of a wind power generator set and a wind power generator set. Background Art

[0002] A wind turbine is a system that converts the kinetic energy of wind into electrical energy. A wind turbine includes a wind rotor and a generator. The wind rotor contains blades, a hub, reinforcements, etc. It generates electricity by the blades rotating under the force of wind and the generator head rotating. The power source for wind power generation consists of a wind turbine, a tower supporting the generator, a battery charge controller, an inverter, an unloader, a grid connection controller, a battery pack, etc.

[0003] The various components of a wind turbine generator set are generally assembled by hoisting. The most basic part is the assembly of the tower. After the assembly of medium and large towers is completed, their height is generally more than 50 meters. At this height, when maintaining the tower, it is generally necessary to climb to the top of the tower from the inside of the tower using a ladder or a non-climbing device, and pass through the generator compartment, so that the maintenance worker can slide down the rope to the place where maintenance is needed for maintenance. This high-altitude maintenance method has low safety guarantees, and the higher the tower, the greater the impact of the wind on the rope, and the higher the risk of maintenance. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a tower for a wind turbine generator set, which solves the problems raised in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a tower of a wind turbine generator set, comprising a ground base frame and a controller, a lower tower is fixed on the top of the ground base frame, an upper tower is fixed on the top of the lower tower, hatches are hinged on the outside of the lower tower and the upper tower, a wind turbine cabin is fixed on the top of the upper tower, blades are fixed on the outside of the wind turbine cabin, platforms are fixed inside the lower tower and the upper tower, and a metal ladder is fixed at the entrance of the platform;

[0006] A thickened ring is fixed to the outside of the top of the lower tower tube, a mounting groove is provided inside the top of the thickened ring, a servo motor group is fixed inside the mounting groove, the servo motor group is controlled by a controller, a gear is fixed on the top of the output shaft of the servo motor group, a linkage ring is rotatably connected inside the mounting groove, teeth are provided at the bottom of the linkage ring, and the teeth of the linkage ring are meshed with the gears of the servo motor group;

[0007] A support ring is fixed on the top of the linkage ring, the thickened ring is located on the inner side of the support ring, and a first maintenance component is provided on the top of the support ring, the first maintenance component is used to assist workers in maintaining the exterior of the upper tower;

[0008] A second maintenance component is fixedly provided at the bottom of the support ring, and the second maintenance component is used to assist workers in maintaining the exterior of the lower tower.

[0009] Optionally, the first maintenance component includes a trapezoidal frame, first transport grooves are opened on both sides of the interior of the trapezoidal frame, first installation cavities are opened on the inner walls of the two first transport grooves, a traction machine is fixed to the top of the first installation cavity, the traction machine is controlled by a controller, a pulley is fixed to the top of the first transport groove, a limiting groove is fixed to the inner wall of the first transport groove close to the traction machine, the outside of the limiting groove is slidably connected to the first car, a steel wire rope is wound around the outside of the pulley, and both ends of the steel wire rope are respectively connected to the traction machine and the top of the first car.

[0010] Optionally, the second maintenance component includes a triangular frame, second transport grooves are opened on both sides of the interior of the triangular frame, and second installation cavities are opened on the tops of the two second transport grooves. A driving motor is fixed to the top of the second installation cavity, and the driving motor is controlled by a controller. A hanging wheel is fixed to the top of the inner cavity of the second transport groove, and the output shaft of the driving motor is connected to the hanging wheel. Limit rods are fixed to the inner walls on both sides of the second transport groove, and the outside of the limit rods is slidably connected to the second car. A steel wire rope is fixed to the outside of the hanging wheel, and one end of the steel wire rope is fixed to the top of the second car.

[0011] Optionally, a guide plate is fixed to the outside of the trapezoidal frame away from the lower tower tube, embedded grooves are provided inside the two sides of the trapezoidal frame, a sliding frame is slidably connected inside the embedded groove, an electric telescopic rod is fixed inside the embedded groove, a reserved groove is provided on the side of the sliding frame close to the electric telescopic rod, and the electric telescopic rod is located inside the reserved groove, and a rubber plate is fixed to the outside of the sliding frame away from one end of the reserved groove.

[0012] Optionally, a plurality of open receiving grooves are evenly arranged inside the sliding frame away from the electric telescopic rod, limiting grooves are arranged at the top and bottom of the open receiving grooves, a spring is fixed to the inner wall of the open receiving groove close to the rubber plate, a linkage frame is fixed to one end of the spring, the linkage frame is slidably connected to the limiting grooves, a movable frame is hinged on the inner side of the linkage frame, a support frame is fixed inside the movable frame, a support frame is hinged on the outside of the movable frame away from one end of the linkage frame, and the support frame is rotatably connected to the top and bottom of the open receiving groove.

[0013] Optionally, a first auxiliary ladder is fixed to the inner wall of the first transport trough on a side close to the first installation cavity, and a first embedded ladder is slidably connected to the interior of the first car on a side close to the first installation cavity.

[0014] Optionally, a second auxiliary ladder is fixed to the inner wall of the second transport trough, a second embedded ladder is slidably connected to the interior of the second car, a positioning hole is provided at the bottom of the second embedded ladder, a positioning bolt is fixed below the inner wall of the second car close to the positioning hole, and the positioning bolt passes through the positioning hole.

[0015] A wind turbine generator set uses the tower of the wind turbine generator set as described above, wherein the bottom of the upper tower is clamped inside the thickening ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The tower and wind turbine generator set of the wind turbine generator set control the first car and the second car to descend through a traction machine and a driving motor, and then the maintenance personnel enter the first car and the second car respectively, and then start the servo motor group, drive the linkage ring to rotate through the servo motor group, drive the support ring to rotate through the linkage ring, drive the trapezoidal frame and the triangular frame to rotate through the support ring, and drive the maintenance personnel inside the first car and the second car to move through the trapezoidal frame and the triangular frame respectively, so that the maintenance personnel can perform comprehensive maintenance on the lower tower and the upper tower in the horizontal and vertical directions, and the entire maintenance process is located inside the first car and the second car, thereby improving the safety and comprehensiveness of the maintenance, and maintenance can be carried out without stopping the machine during the maintenance process.

[0018] 2. The tower and wind turbine generator set of the wind turbine generator set are started by an electric telescopic rod to push the sliding frame to extend outward from the inside of the embedded groove. During the extension of the sliding frame, the movable frame loses the limit of the trapezoidal frame, that is, the spring loses the limit of the trapezoidal frame and resets, so that after the sliding frame is extended, the movable frame drives the support frame to be ejected from the inside of the open storage groove until the sliding frame drives the rubber plate to complete the clamping and limiting of the blades. While the wind resistance of the blades is improved by the rubber plate, the wind resistance of the upper tower is improved by the sliding frame and the trapezoidal frame, and the wind resistance of the upper tower and the trapezoidal frame is improved by the wave plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the positional relationship between the support ring and the trapezoidal frame of the present invention;

[0021] Figure 3 It is a structural cross-sectional view of the upper tower and the lower tower of the present invention;

[0022] Figure 4 It is a structural cross-sectional view of the support ring of the present invention;

[0023] Figure 5 is an inner view of the trapezoidal frame of the present invention;

[0024] Figure 6 is an interior view of the triangular frame of the present invention;

[0025] Figure 7 A longitudinal cross-sectional view of the triangular frame of the present invention;

[0026] Figure 8 is a transverse cross-sectional view of the triangular frame of the present invention;

[0027] Fig. 9 It is a schematic diagram of the connection relationship between the spring, linkage frame, movable frame and support frame of the present invention;

[0028] Fig.10 is a schematic structural diagram of the second car of the present invention;

[0029] Fig.11 for Figure 4 A partial enlarged view of point A in the middle.

[0030] In the figure: 1, ground base frame; 11, lower tower; 12, upper tower; 13, blades; 14, platform; 15, metal ladder; 2, thickened ring; 21, installation groove; 22, servo motor group; 23, linkage ring; 3, support ring; 4, ladder frame; 41, first carrying groove; 42, first installation cavity; 43, traction machine; 44, pulley; 45, limit groove; 46, first car; 461, first embedded ladder; 47, first auxiliary ladder; 48, guide plate; 49, embedded groove; 5, Sliding frame; 51. Electric telescopic rod; 52. Reserved slot; 53. Open storage slot; 54. Limiting slot; 55. Rubber plate; 6. Spring; 61. Linkage frame; 62. Movable frame; 63. Corrugated plate; 64. Support frame; 7. Triangular frame; 71. Second carrying slot; 72. Second installation cavity; 73. Driving motor; 74. Hanging wheel; 75. Limiting rod; 76. Second car; 761. Second embedded ladder; 762. Positioning hole; 763. Positioning bolt; 77. Second auxiliary ladder. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] See also Figure 1-11A tower of a wind turbine generator set comprises a ground base frame 1 and a controller, a lower tower 11 is fixed on the top of the ground base frame 1, an upper tower 12 is fixed on the top of the lower tower 11, doors are hinged on the outside of the lower tower 11 and the upper tower 12, a wind turbine generator cabin is fixed on the top of the upper tower 12, blades 13 are fixed on the outside of the wind turbine generator cabin, platforms 14 are fixed inside the lower tower 11 and the upper tower 12, and a metal ladder 15 is fixed at the entrance of the platform 14;

[0034] A thickened ring 2 is fixed to the outside of the top of the lower tower tube 11, and a mounting groove 21 is opened inside the top of the thickened ring 2. A servo motor group 22 is fixed inside the mounting groove 21. The servo motor group 22 is controlled by a controller. A gear is fixed to the top of the output shaft of the servo motor group 22. A linkage ring 23 is rotatably connected inside the mounting groove 21. The bottom of the linkage ring 23 is provided with teeth, and the teeth of the linkage ring 23 mesh with the gears of the servo motor group 22.

[0035] A support ring 3 is fixed on the top of the linkage ring 23, and the thickened ring 2 is located on the inner side of the support ring 3. A first maintenance component is provided on the top of the support ring 3, and the first maintenance component is used to assist workers in maintaining the exterior of the upper tower 12. A second maintenance component is fixed on the bottom of the support ring 3, and the second maintenance component is used to assist workers in maintaining the exterior of the lower tower 11.

[0036] The first maintenance assembly includes a ladder frame 4, first carrying grooves 41 are provided on both sides of the inside of the ladder frame 4, first installation cavities 42 are provided on the inner walls of the two first carrying grooves 41, a traction machine 43 is fixed on the top of the first installation cavity 42, the traction machine 43 is controlled by a controller, a pulley 44 is fixed on the top of the first carrying groove 41, a limiting groove 45 is fixed on the inner wall of the first carrying groove 41 on the side close to the traction machine 43, a first car 46 is slidably connected to the outside of the limiting groove 45, a steel wire rope is wound around the outside of the pulley 44, and both ends of the steel wire rope are respectively connected to the top of the traction machine 43 and the first car 46;

[0037] The second maintenance assembly includes a triangular frame 7, second carrying grooves 71 are provided on both sides of the interior of the triangular frame 7, second installation cavities 72 are provided on the tops of the two second carrying grooves 71, a driving motor 73 is fixed on the top of the second installation cavity 72, the driving motor 73 is controlled by a controller, a hanging wheel 74 is fixed on the top of the inner cavity of the second carrying groove 71, the output shaft of the driving motor 73 is connected to the hanging wheel 74, limiting rods 75 are fixed to the inner walls on both sides of the second carrying groove 71, the outside of the limiting rods 75 is slidably connected to the second car 76, a steel wire rope is fixed to the outside of the hanging wheel 74, and one end of the steel wire rope is fixed to the top of the second car 76;

[0038] A first auxiliary ladder 47 is fixed to the inner wall of the first transport groove 41 near the first installation cavity 42, a first built-in ladder 461 is slidably connected to the inside of the first car 46 near the first installation cavity 42, a second auxiliary ladder 77 is fixed to the inner wall of the second transport groove 71, a second built-in ladder 761 is slidably connected to the inside of the second car 76, a positioning hole 762 is formed at the bottom of the second built-in ladder 761, a positioning bolt 763 is fixed to the lower part of the inner wall of the second car 76 near the positioning hole 762, and the positioning bolt 763 passes through the positioning hole 762;

[0039] During the specific operation, when it is necessary to perform maintenance operations on the exterior of the lower tower 11 and the upper tower 12, the driving motor 73 can be started by the controller, and the driving motor 73 drives the hanging wheel 74 to rotate, so that the hanging wheel 74 gradually releases the wire rope, and releases the second car 76 through the wire rope, so that the second car 76 descends to the bottom of the lower tower 11 along the vertical direction of the limit rod 75 until the second car 76 contacts the top of the ground base frame 1. At this time, the entrance of the second car 76 is fully opened, and the maintenance personnel can carry their maintenance tools and enter the interior of the second car 76;

[0040] When the maintenance personnel enter the second car 76, the servo motor group 22 can be started by the controller, and the servo motor group 22 drives the linkage ring 23 to rotate, so that the linkage ring 23 drives the support ring 3 at the top of the thickened ring 2 to rotate around the upper tower 12. During the rotation of the support ring 3, the triangular frame 7 is driven to rotate around the lower tower 11. During the rotation of the triangular frame 7, the second car 76 and the maintenance personnel are driven to rotate around the lower tower 11. When the second car 76 rotates to the position to be maintained and inspected, the rotation of the servo motor group 22 can be stopped, so that the second car 76 and the maintenance personnel stay at the designated position to maintain the surface of the lower tower 11.

[0041] At the same time, when the triangular frame 7 follows the support ring 3 to rotate around the lower tower 11, the rotating triangular frame 7 plays a role of spoiler, reducing the disturbance of wind force to the lower tower 11, thereby improving the wind resistance of the lower tower 11;

[0042] After the maintenance at the current position is completed, the external rotation of the lower tower 11 at the position of the second car 76 can be controlled through the above steps, and then the maintenance position at the same height can be changed, so that the surface of the entire lower tower 11 at the same height can be maintained in detail, thereby improving the accuracy and comprehensiveness of the maintenance;

[0043] After the maintenance at the current height is completed, the controller can control the start and stop of the driving motor 73, and the winding and releasing of the external wire rope of the hanging wheel 74 can be controlled by the start and stop of the driving motor 73, and then the lifting and lowering of the second car 76 and the maintenance personnel can be controlled, so that the second car 76 drives the maintenance personnel to rise along the vertical direction of the lower tower 11. After rising to the unmaintained position, the lifting and lowering of the second car 76 is stopped, and then the servo motor group 22 is operated again to drive the second car 76 and the maintenance personnel to maintain the surface of the lower tower 11 at this height;

[0044] Compared with the maintenance process of the maintenance personnel on the lower tower 11 by hanging ropes, the present invention will not face the influence of high-altitude wind force when maintaining the exterior of the lower tower 11, and there is no risk of hanging ropes. In addition, the maintenance personnel can contact the exterior of the lower tower 11 more stably and perform maintenance. At the same time, during the maintenance process, due to the continuous change of height and position, the present invention makes the maintenance of the exterior of the lower tower 11 more comprehensive;

[0045] As the second car 76 carrying the maintenance personnel gradually approaches the support ring 3 along the vertical direction of the lower tower 11, due to the partial space in the inner cavity of the second carrying trough 71, which is used to fix the hanging wheel 74, the second car 76 cannot reach the topmost floor of the lower tower 11. At this time, the positioning bolt 763 can be rotated to remove the positioning bolt 763, so that the second embedded ladder 761 loses the limit of the positioning bolt 763, and then the second embedded ladder 761 is pulled out from the inside of the second car 76, and the second embedded ladder 761 is limited again by the positioning bolt 763. At this time, the maintenance personnel can lock the safety lock on the safety suit to the outside of the second embedded ladder 761, and complete the maintenance of the outside of the top of the lower tower 11 by climbing the second embedded ladder 761, thereby further improving the comprehensiveness of the maintenance of the lower tower 11;

[0046] Furthermore, when maintaining the exterior of the lower tower 11, the remaining maintenance personnel can enter the interior of the lower tower 11 through the hatch of the lower tower 11, and climb to the top of the platform 14 where the upper tower 12 and the lower tower 11 meet through the metal ladder 15, then open the hatch of the upper tower 12, and then control the linkage ring 23 through the servo motor group 22 to drive the support ring 3 to rotate, and drive the ladder frame 4 to rotate through the support ring 3, so that the ladder frame 4 drives the first car 46 to rotate, until the entrance of the first car 46 rotates to the hatch of the upper tower 12. At this time, the maintenance personnel can enter the interior of the first car 46 through the hatch of the upper tower 12, and then can maintain the exterior of the upper tower 12;

[0047] The same as the above steps of maintaining the lower tower 11 is that when maintaining the outside of the upper tower 12, the servo motor group 22 links the linkage ring 23 and drives the support ring 3 to rotate. At this time, the support ring 3 drives the ladder frame 4 and the triangular frame 7 to rotate at the same time, and makes the ladder frame 4 rotate around the upper tower 12, and makes the triangular frame 7 rotate around the lower tower 11. In this process, the outside of the lower tower 11 and the upper tower 12 can be maintained at the same time, thereby improving the efficiency of maintenance and reducing the consumption of the servo motor group 22.

[0048] When the exterior of the upper tower 12 is maintained, the traction machine 43 can be started by the controller, and the wire rope outside the pulley 44 can be pulled by the traction machine 43, and then the winding and release of the wire rope can be controlled, so that the traction machine 43 can control the lifting and lowering of the first car 46. After the maintenance of the current height of the upper tower 12 is completed, the first car 46 can be controlled by the traction machine 43 to be lifted upward along the vertical direction of the upper tower 12, so that the first car 46 drives the maintenance personnel to move to the height that has not been maintained, and the exterior of the upper tower 12 is fully maintained again through the operation and linkage of the servo motor group 22;

[0049] Similarly, when the support ring 3 drives the trapezoidal frame 4 to rotate around the upper tower 12, the rotating trapezoidal frame 4 also plays a role of spoiler, reducing the impact of high-altitude wind on the upper tower 12, thereby improving the wind resistance of the upper tower 12;

[0050] Therefore, in actual use, the present invention can simultaneously maintain the exterior of the lower tower 11 and the upper tower 12, thereby improving the efficiency of maintaining the lower tower 11 and the upper tower 12, so that maintenance personnel can maintain the lower tower 11 and the upper tower 12 more timely, so that the lower tower 11 and the upper tower 12 are well prepared to resist bad weather;

[0051] At the same time, the maintenance personnel are always located inside the first car 46 and the second car 76, thereby reducing the impact of high-altitude wind on the maintenance personnel. At the same time, the first car 46 and the second car 76 serve as support platforms, providing maintenance personnel with a more stable standing space to maintain the exterior of the lower tower 11 and the upper tower 12;

[0052] It should be noted that there are two first transport troughs 41 and two second transport troughs 71, that is, there are two first cars 46 and two second cars 76, that is, when it is necessary to further increase the maintenance speed of the lower tower 11 and the upper tower 12, the maintenance of the lower tower 11 can be completed by two maintenance personnel at the same time, and the maintenance of the upper tower 12 can also be completed by two maintenance personnel at the same time, thereby further speeding up the maintenance of the lower tower 11 and the upper tower 12, thereby more quickly improving the prevention and response to severe weather, and the interior of the second car 76 is also slidably connected with a second embedded ladder 761, that is, when facing the blind spot at the top of the upper tower 12, the second embedded ladder 761 can be pulled open in the same way, and the safety lock on the safety suit can be used to strengthen the fixation of the second embedded ladder 761, and the second embedded ladder 761 can be climbed to perform maintenance on the blind spot at the top of the upper tower 12;

[0053] During traditional rope hoisting maintenance, the rope will swing constantly due to the wind, making it difficult for maintenance personnel to accurately perform maintenance at the designated location. Maintenance personnel need to twist and swing themselves to get close to the maintenance location. This maintenance method further reduces the maintenance efficiency.

[0054] Compared with the traditional rope hoisting maintenance, in the present invention, the position conversion is mechanically controlled, so that the maintenance personnel can accurately maintain the designated position, further improving the comprehensiveness and accuracy of the maintenance of the lower tower 11 and the upper tower 12. In the traditional maintenance process, the wind turbine generator cabin is usually required to be shut down to prevent the rotating blades 13 from causing damage to the maintenance personnel, and then the tower can be maintained. In the actual maintenance process, the present invention can maintain the exterior of the lower tower 11 and the upper tower 12 without stopping the machine, thereby maintaining the exterior of the lower tower 11 and the upper tower 12 in the process of maintaining wind power generation;

[0055] The first auxiliary ladder 47 and the second auxiliary ladder 77 are used to assist maintenance personnel in inspecting the traction machine 43 and the drive motor 73 .

[0056] Embodiment 2:

[0057] A guide plate 48 is fixed to the outside of the trapezoidal frame 4 on the side away from the lower tower 11, and an embedded groove 49 is provided inside the two sides of the trapezoidal frame 4, and a sliding frame 5 is slidably connected inside the embedded groove 49, and an electric telescopic rod 51 is fixed inside the embedded groove 49, and a reserved groove 52 is provided on the side of the sliding frame 5 close to the electric telescopic rod 51, and the electric telescopic rod 51 is located inside the reserved groove 52, and a rubber plate 55 is fixed to the outside of one end of the sliding frame 5 away from the reserved groove 52;

[0058] During the specific operation, when strong winds come, the operation of the wind turbine cabin is first suspended, that is, the blades 13 stop rotating, so that one of the blades 13 is in a collinear state with the upper tower 12. At this time, the electric telescopic rod 51 can be started by the controller, and the electric telescopic rod 51 is pushed out, so that the electric telescopic rod 51 drives the sliding frame 5 to extend outward from the inside of the embedded groove 49, so that the sliding frame 5 drives the rubber plate 55 to move toward the direction of the blade 13 and contact the blade 13 in a collinear state with the upper tower 12, and then the two rubber plates 55 complete the clamping of the blade 13. By clamping the blade 13, the stability of the blade 13 is enhanced, and the strong wind is prevented from driving the stopped blade 13 to rotate, thereby damaging the entire wind turbine generator set;

[0059] Furthermore, since the two sliding frames 5 extend out from the inside of the embedded groove 49 at the same time, and the outer shape of the trapezoidal frame 4 is a trapezoid, when the two rubber plates 55 complete the clamping and limiting of the blades 13, the vibration and rotation of the blades 13 affected by the strong wind can be reduced by the rubber plates 55, and after the two sliding frames 5 are extended, they cooperate with the outer shape of the trapezoidal frame 4 itself, so that the trapezoidal frame 4 and the sliding frames 5 form a triangle, that is, the windward surfaces of the trapezoidal frame 4 and the sliding frames 5 are sharp, thereby improving the wind resistance of the upper tower 12 and strengthening the stability of the upper tower 12 itself;

[0060] Similarly, the triangular frame 7 is also triangular in shape. When facing strong winds, the conical surface of the triangular frame 7 can also improve the wind resistance of the lower tower 11.

[0061] It should be noted that the outer shape of the triangular frame 7 is an isosceles triangle, while the outer shape of the trapezoidal frame 4 is an isosceles trapezoid, thereby ensuring that the two sliding frames 5 can cooperate with the trapezoidal frame 4 itself to form a new isosceles triangle after extension, thereby enhancing the wind resistance of the upper tower 12. When the sliding frame 5 is retracted inside the embedded groove 49, the guide plate 48 can serve as the windward surface of the trapezoidal frame 4, that is, the wind resistance of the trapezoidal frame 4 is increased by the guide plate 48.

[0062] Embodiment three:

[0063] A plurality of open receiving grooves 53 are evenly provided inside the sliding frame 5 on the side away from the electric telescopic rod 51, and limiting grooves 54 are provided at the top and bottom of the open receiving grooves 53. A spring 6 is fixed to the inner wall of the open receiving groove 53 on the side close to the rubber plate 55, and a linkage frame 61 is fixed to one end of the spring 6. The linkage frame 61 is slidably connected to the limiting groove 54, and a movable frame 62 is hinged on the inner side of the linkage frame 61. A support frame 64 is fixed inside the movable frame 62, and a support frame 64 is hinged on the outer side of the end of the movable frame 62 away from the linkage frame 61, and the support frame 64 is rotatably connected to the top and bottom of the open receiving groove 53;

[0064] During the specific operation, when the controller controls the electric telescopic rod 51 to start, the electric telescopic rod 51 pushes the sliding frame 5 to extend outward from the inside of the embedded groove 49. When the sliding frame 5 extends out from the outside of the embedded groove 49, the movable frame 62 and the support frame 64 lose the limit of the embedded groove 49, that is, the linkage frame 61 loses the limit of the movable frame 62, that is, the spring 6 loses the limit of the linkage frame 61. Under the premise of losing the limit, the spring 6 releases its own elastic force to push the linkage frame 61 to slide inside the limited groove 54. In the sliding process, since the linkage frame 61 and the movable frame 62 are in a hinged state, and the movable frame 62 and the support frame 64 are in a hinged state, the support frame 64 and the open storage groove 53 are in a rotationally connected state;

[0065] As a result, after the sliding frame 5 drives the rubber plate 55 to complete the clamping and limiting of the two sides of the blade 13, the spring 6 pushes the linkage frame 61, and the linkage frame 61 pushes the movable frame 62 to drive the hinged support frame 64 to be ejected from the inside of the open storage groove 53. Since the open storage groove 53 is provided with multiple, that is, there are multiple movable frames 62 and support frames 64, and since there are two sliding frames 5, there are multiple movable frames 62 and support frames 64 ejected from the surface of the two sliding frames 5.

[0066] When the wind force is strong, the wave plates 63 arranged inside the movable frame 62 affect the wave line shape of the wave plates 63 when the airflow passes through the wave plates 63, so that the wind force can be diverted by multiple wave plates 63, and then the movable frame 62, the wave plates 63 and the support frame 64 play a role of spoiler, further reducing the impact of strong wind on the ladder frame 4 and the upper tower 12, thereby improving the wind resistance of the upper tower 12;

[0067] Furthermore, when the strong wind ends, the return stroke of the electric telescopic rod 51 can be controlled so that the electric telescopic rod 51 drives the sliding frame 5 to be retracted into the interior of the embedded groove 49 again. When the sliding frame 5 is retracted, the support frame 64 is in an outwardly protruding state at this time, and in this process, the support frame 64 is limited by the trapezoidal frame 4, and exerts pressure on the movable frame 62, so that the movable frame 62 exerts pressure on the linkage frame 61, so that the linkage frame 61 exerts pressure on the spring 6, and then the spring 6 is compressed. When the spring 6 is compressed, as the sliding frame 5 continues to return, the support frame 64 drives the movable frame 62 to be retracted into the interior of the open storage groove 53 again, until the sliding frame 5 is completely retracted into the interior of the trapezoidal frame 4, and the wind turbine generator cabin and the blades 13 can be started again to generate wind power.

[0068] A wind turbine generator set uses the tower of the wind turbine generator set as described above, and the bottom of the upper tower 12 is clamped inside the thickening ring 2.

[0069] 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 tower of a wind turbine generator set, comprising a ground frame (1) and a controller, wherein a lower tower (11) is fixed on the top of the ground frame (1), characterized in that: An upper tower (12) is fixed to the top of the lower tower (11), doors are hingedly connected to the outside of the lower tower (11) and the upper tower (12), a wind turbine generator cabin is fixed to the top of the upper tower (12), blades (13) are fixed to the outside of the wind turbine generator cabin, platforms (14) are fixed to the inside of the lower tower (11) and the upper tower (12), and a metal ladder (15) is fixed at the entrance of the platform (14); A thickening ring (2) is fixed to the outside of the top of the lower tower tube (11), a mounting groove (21) is provided inside the top of the thickening ring (2), a servo motor group (22) is fixed inside the mounting groove (21), the servo motor group (22) is controlled by a controller, a gear is fixed to the top of the output shaft of the servo motor group (22), a linkage ring (23) is rotatably connected inside the mounting groove (21), teeth are provided at the bottom of the linkage ring (23), and the teeth of the linkage ring (23) mesh with the gears of the servo motor group (22); A support ring (3) is fixed on the top of the linkage ring (23), the thickened ring (2) is located on the inner side of the support ring (3), and a first maintenance component is provided on the top of the support ring (3), the first maintenance component is used to assist workers in maintaining the exterior of the upper tower (12); A second maintenance component is fixedly provided at the bottom of the support ring (3), and the second maintenance component is used to assist workers in maintaining the exterior of the lower tower (11).

2. The tower of a wind turbine generator set according to claim 1, characterized in that: The first maintenance component comprises a ladder frame (4), wherein first transport grooves (41) are provided on both sides of the interior of the ladder frame (4), and first installation cavities (42) are provided on the inner walls of the two first transport grooves (41), and a traction machine (43) is fixed on the top of the first installation cavity (42), and the traction machine (43) is controlled by a controller, and a pulley (44) is fixed on the top of the first transport groove (41), and a limiting groove (45) is fixed on the inner wall of the first transport groove (41) on the side close to the traction machine (43), and the outside of the limiting groove (45) is slidably connected to a first car (46), and a steel wire rope is wound around the outside of the pulley (44), and the two ends of the steel wire rope are respectively connected to the top of the traction machine (43) and the first car (46).

3. The tower of a wind turbine generator set according to claim 2, characterized in that: The second maintenance component comprises a triangular frame (7), second transport grooves (71) are provided on both sides of the interior of the triangular frame (7), second installation cavities (72) are provided on the tops of the two second transport grooves (71), a driving motor (73) is fixed on the top of the second installation cavity (72), the driving motor (73) is controlled by a controller, a hanging wheel (74) is fixed on the top of the inner cavity of the second transport groove (71), the output shaft of the driving motor (73) is connected to the hanging wheel (74), limiting rods (75) are fixed on the inner walls on both sides of the second transport groove (71), the outside of the limiting rods (75) is slidably connected to the second car (76), a steel wire rope is fixed on the outside of the hanging wheel (74), and one end of the steel wire rope is fixed to the top of the second car (76).

4. The tower of a wind turbine generator set according to claim 3, characterized in that: A guide plate (48) is fixed to the outside of the trapezoidal frame (4) on a side away from the lower tower tube (11); embedded grooves (49) are provided inside the two sides of the trapezoidal frame (4); a sliding frame (5) is slidably connected inside the embedded groove (49); an electric telescopic rod (51) is fixed inside the embedded groove (49); a reserved groove (52) is provided on a side of the sliding frame (5) close to the electric telescopic rod (51), and the electric telescopic rod (51) is located inside the reserved groove (52); and a rubber plate (55) is fixed to the outside of one end of the sliding frame (5) away from the reserved groove (52).

5. The tower of a wind turbine generator set according to claim 4, characterized in that: A plurality of open receiving grooves (53) are evenly arranged inside the sliding frame (5) at a side away from the electric telescopic rod (51), and limiting grooves (54) are arranged at the top and bottom of the open receiving grooves (53). A spring (6) is fixed to the inner wall of the open receiving groove (53) at a side close to the rubber plate (55), and a linkage frame (61) is fixed to one end of the spring (6), and the linkage frame (61) is slidably connected to the limiting groove (54). A movable frame (62) is hingedly connected to the inner side of the linkage frame (61), and a support frame (64) is fixed inside the movable frame (62). A support frame (64) is hingedly connected to the outer side of the movable frame (62) at one end away from the linkage frame (61), and the support frame (64) is rotatably connected to the top and bottom of the open receiving groove (53).

6. The tower of a wind turbine generator set according to claim 5, characterized in that: A first auxiliary ladder (47) is fixed to the inner wall of the first carrying groove (41) close to the first installation cavity (42), and a first embedded ladder (461) is slidably connected to the interior of the first elevator car (46) close to the first installation cavity (42).

7. The tower of a wind turbine generator set according to claim 6, characterized in that: A second auxiliary ladder (77) is fixed to the inner wall of the second transport trough (71), a second embedded ladder (761) is slidably connected to the interior of the second car (76), a positioning hole (762) is provided at the bottom of the second embedded ladder (761), a positioning bolt (763) is fixed below the inner wall of the second car (76) on one side close to the positioning hole (762), and the positioning bolt (763) passes through the positioning hole (762).

8. A wind turbine generator set using the tower of the wind turbine generator set as claimed in claim 7, characterized in that: The bottom of the upper tower (12) is clamped inside the thickening ring (2).

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