Intelligent wind driven generator with adjustable propeller pitch

Abstract

The invention relates to the technical field of power generation equipment, and discloses a pitch-adjustable intelligent wind driven generator which comprises a main body, a pitch synchronous adjusting mechanism, an overload protection mechanism and a multi-stage protection mechanism, a base is fixedly arranged at the bottom of the main body, the main body is cylindrical, the base is perpendicular to the main body, a plurality of reinforcing ribs are fixedly arranged between the bottom of the side wall of the main body and the top of the base, and a plurality of fastening bolts are in threaded connection with the edge of the top of the base. When the intelligent wind driven generator with the adjustable propeller pitch is used, synchronous adjustment of the lengths of the propeller blades can be achieved through the propeller pitch synchronous adjustment mechanism, uneven stress of the propeller blades caused by different lengths of the propeller blades is avoided, adjustment of the rotating speed of the propeller blades can be achieved through the overload protection mechanism during power generation, and the situation that the rotating speed of the propeller blades is too high and consequently the propeller blades are broken is avoided; when the propeller pitch synchronous adjusting mechanism operates, the multi-stage protection mechanism is driven to protect the propeller blades, and the propeller blades are prevented from being damaged.

Description

Technical Field

[0001] The invention relates to the technical field of power generation equipment, and in particular to an intelligent wind turbine with adjustable pitch. Background Art

[0002] A wind turbine is an electrical device that uses wind power to drive the windmill blades to rotate, and then increases the speed of rotation through a speed increaser to enable the generator to generate electricity. Its power generation principle is mainly based on the principle of electromagnetic induction, that is, when a conductor moves in a magnetic field, an electromotive force will be generated in the conductor, thereby generating current. As a clean and renewable energy utilization method, wind turbines have been widely used around the world. It can not only provide stable power output for the power grid, but also reduce dependence on traditional energy and environmental pollution. With the continuous advancement of technology and the reduction of costs, the application prospects of wind power generation will be broader. In the future, wind turbines will develop in the direction of larger capacity, higher efficiency, and more intelligence, making greater contributions to the sustainable development of human society.

[0003] Most existing wind turbines have fixed blades, and the pitch cannot be adjusted to fully utilize the wind force. In addition, the blades are relatively weak and are easily damaged when the wind force is strong. Therefore, an intelligent wind turbine with adjustable pitch is proposed. Summary of the invention

[0004] The present invention aims to solve the technical problem that most existing wind turbines have fixed blades and cannot adjust the pitch to fully utilize the wind force, and the blades are relatively weak and easily damaged when the wind force is strong. An intelligent wind turbine with adjustable pitch is provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is: An intelligent wind turbine with adjustable pitch, comprising a main body, a pitch synchronization adjustment mechanism, an overload protection mechanism and a multi-level protection mechanism; A base is fixedly provided at the bottom of the main body, the main body is cylindrical, the base is vertically arranged to the main body, a plurality of reinforcing ribs are fixedly provided between the bottom of the side wall of the main body and the top of the base, a plurality of fastening bolts are threadedly connected to the top edge of the base, an installation box is fixedly provided on the top of the main body, the installation box is rectangular, a rotating table is rotatably provided at the front end of the installation box, the rotating table is cylindrical, and the end of the rotating table away from the installation box is hemispherical, a plurality of blades are evenly arranged on the side wall of the rotating table, the pitch synchronization adjustment mechanism is arranged between the rotating table and the blades, the overload protection mechanism is arranged inside the installation box, the multi-stage protection mechanism is arranged in the middle of the blades, and a transformer is detachably provided in the middle of the side wall of the main body. When in use, the pitch synchronization adjustment mechanism can be used to achieve synchronous adjustment of the blade length to avoid uneven force on the blades due to different lengths of the blades. When generating electricity, the overload protection mechanism can be used to adjust the blade speed to avoid the blades breaking due to excessive speed. When the pitch synchronization adjustment mechanism is running, it drives the multi-level protection mechanism to protect the blades to avoid damage to the blades.

[0006] Furthermore, the pitch synchronous adjustment mechanism includes a drive motor, the drive motor is fixedly arranged at one end of the rotating platform away from the installation box, the axis of the drive motor is coaxially arranged with the rotating platform, the output end of the drive motor faces the installation box, the output end of the drive motor is provided with a rotating shaft, the other end of the rotating shaft is provided with a driving bevel gear, the edge of the driving bevel gear is meshed with a plurality of driven bevel gears, and the plurality of driven bevel gears are evenly arranged around the axis of the driving bevel gear. When adjusting the pitch, the drive motor is started, so that the rotating shaft starts to rotate, and when the rotating shaft rotates, the driving bevel gear is driven to start rotating, and when the driving bevel gear rotates, the driven bevel gear meshed with it is driven to start rotating.

[0007] Furthermore, a plurality of mounting seats are fixedly provided on the outer side wall of the rotating platform, a blade root is fixedly provided at the connection between the blade and the mounting seat, the position and number of the driven bevel gear match the position and number of the mounting seat, a transmission rod is vertically provided at the axis of one side of the driven bevel gear facing the mounting seat, and the transmission rod is coaxially provided with the mounting seat. When the driven bevel gear rotates, the transmission rod is driven to start rotating.

[0008] Furthermore, an inner hole is provided inside the blade, a movable end is provided at the outer movable end of the blade, a protrusion is provided at the connection between the blade and the movable end, the movable end is slidably connected to the outer end of the blade through the protrusion, the cross-sectional shape of the protrusion is elliptical, a threaded hole is provided inside one end of the movable end facing the protrusion, the threaded hole is coaxially arranged with the inner hole, the outer end of the transmission rod passes through the protrusion and extends to the inside of the threaded hole, the outer end of the transmission rod is provided with a threaded portion, and the threaded portion is rotatably connected to the threaded hole. When the transmission rod rotates, the threaded portion at the other end of the transmission rod starts to rotate, and when the threaded portion rotates in the threaded hole threadedly connected thereto, an outward thrust is generated on the movable end, so that the movable end moves outward along the protrusion, so that the length of the blade increases, thereby realizing synchronous adjustment of the length of the blade, and avoiding uneven force on the blade due to different lengths of the blade.

[0009] Furthermore, the overload protection mechanism includes a connecting platform, the connecting platform is arranged on a side wall of the rotating platform facing the installation box, the connecting platform is coaxially arranged with the rotating platform, the other end of the connecting platform passes through the installation box and extends to the interior of the installation box, the center of the side wall of one end of the connecting platform extending to the interior of the installation box is connected to a main shaft, the outer wall of the main shaft is sleeved with fixed rings on both sides, the fixed ring is rotatably connected to the main shaft, the bottom of the fixed ring is provided with a mounting plate, the top of the mounting plate is fixedly connected to the fixed ring, the bottom of the mounting plate is fixedly provided with a mounting frame, and the bottom end of the mounting frame is fixedly connected to the inner bottom of the installation box. When generating electricity, the blades begin to rotate due to the action of wind force, causing the rotating platform to start rotating, and when the rotating platform rotates, the connecting platform is driven to rotate accordingly, and when the connecting platform rotates, the main shaft starts to rotate.

[0010] Furthermore, a first transmission shaft is provided at one end of the main shaft away from the connecting platform, the first transmission shaft is coaxially arranged with the main shaft, a spline is provided on the outer wall of the end portion where the first transmission shaft and the main shaft are connected, the other end of the first transmission shaft is connected with a first transmission gear, a second transmission gear is provided at the bottom of the first transmission gear in meshing engagement, the diameter of the first transmission gear is larger than that of the second transmission gear, a second transmission shaft is connected at the axis center on the side of the second transmission gear away from the first transmission shaft, the second transmission shaft is rotatably connected to the bottom of the installation box through a vertical plate, a third transmission gear is provided at the other end of the second transmission shaft, the diameter of the third transmission gear is larger than that of the second transmission gear, a fourth transmission gear is provided on the top of the third transmission gear, the diameter of the third transmission gear is larger than that of the fourth transmission gear, a third transmission shaft is connected at the axis center on the side of the fourth transmission gear away from the second transmission shaft, a generator is connected at the other end of the third transmission shaft, and the generator is electrically connected to the transformer. When the main shaft rotates, it drives the first transmission shaft connected to it to start rotating, causing the first transmission gear to start rotating. When the first transmission gear rotates, it drives the second transmission gear at the bottom to rotate at high speed, causing the second transmission shaft and the third transmission gear to start rotating. When the third transmission gear rotates, it drives the fourth transmission gear meshing with it to further accelerate its rotation. When the fourth transmission gear rotates, it drives the third transmission shaft to start rotating. The mechanical energy of the third transmission shaft can be converted into electrical energy through the generator, and then output through the transformer.

[0011] Furthermore, a friction disc is provided on the side wall of one end of the third transmission shaft facing the generator, a friction block is provided on the top of the friction disc, the top of the friction block is fixedly connected to the top of the mounting box by a connecting rod, an adjusting wheel is provided between the friction disc and the fourth transmission gear, a side wall of the adjusting wheel facing the friction disc is provided with a plurality of slide grooves evenly arranged in a radial shape around the third transmission shaft, a push block is provided for sliding on the outside of the slide groove, a stop block is provided on the bottom of the side wall of the friction block facing the push block, the push block and the opposite side walls of the stop block are provided with parallel inclined surfaces, and the friction block is elastically arranged. When the third transmission shaft rotates, it drives the friction plate and the adjusting wheel to rotate accordingly. The faster the speed of the adjusting wheel, the greater the centrifugal force on the push block, and the greater the amplitude of its outward movement. The spring stretches and generates elastic force in the opposite direction. When the push block moves to contact the stop block, the parallel inclined surface pushes the friction block to move in the direction of the friction plate until friction is generated between the friction block and the friction plate. Under the action of friction force, the speed of the friction plate is reduced, thereby reducing the speed of the blade, thereby achieving the adjustment of the blade speed and avoiding the blade from breaking due to excessive speed.

[0012] Furthermore, the multi-stage protection mechanism includes a protective sleeve, which is fixedly arranged on the outer wall of the connection between the blade and the movable end, the shape of the protective sleeve matches the cross-sectional shape of the blade, and a gap is arranged between the protective sleeve and the outer wall of the blade. By arranging the protective sleeve, the strength of the connection between the blade and the movable end can be increased to prevent damage to the blade.

[0013] Furthermore, the movable end is provided with a plurality of first telescopic rods that rotate between the outer wall of one end of the blade and the middle part of the inner wall of the protective sleeve, and the maximum length of the first telescopic rods is greater than the depth of the threaded hole. When the movable end moves outward, the first telescopic rod at its inner end is extended, and at the same time, it rotates toward the axis direction of the transmission rod, thereby increasing the axial strength of the blade.

[0014] Furthermore, a plurality of second telescopic rods are connected between the outer edges of the connection between the blade and the movable end, the second telescopic rods are arranged in parallel with the transmission rod, the fixed end of the second telescopic rod protrudes from the outer edge of the blade, and the outer edge of the movable end is provided with a plurality of clamping holes, the position and size of the clamping holes match the fixed end of the second telescopic rod. When the movable end moves outward, the second telescopic rod is extended at the same time, so as to further increase the strength of the blade, protect the blade, and avoid damage to the blade. Beneficial effects of the present invention: 1. The intelligent wind turbine with adjustable pitch of the present invention can achieve synchronous adjustment of blade length through the pitch synchronization adjustment mechanism when in use, so as to avoid uneven force on the blades due to different lengths of the blades. During power generation, the rotation speed of the blades can be adjusted through the overload protection mechanism, so as to avoid the blades breaking due to excessive rotation speed. When the pitch synchronization adjustment mechanism is in operation, it drives the multi-level protection mechanism to protect the blades, so as to avoid damage to the blades.

[0015] 2. The intelligent wind turbine with adjustable pitch of the present invention is provided with a synchronous pitch adjustment mechanism, which can drive the threaded portion at the other end of the transmission rod to start rotating when the transmission rod rotates. When the threaded portion rotates in the threaded hole threadedly connected thereto, it generates an outward thrust on the movable end, causing the movable end to move outward along the protrusion, thereby increasing the length of the blade, thereby achieving synchronous adjustment of the blade length and avoiding uneven force on the blade due to different blade lengths.

[0016] 3. The intelligent wind turbine with adjustable pitch of the present invention is provided with an overload protection mechanism, which can drive the friction disk and the adjusting wheel to rotate when the third transmission shaft rotates. When the rotating speed of the adjusting wheel is faster, the centrifugal force on the push block is greater, and the amplitude of its outward movement is greater. The spring stretches and generates elastic force in the opposite direction. When the push block moves to contact the stop block, the inclined surface arranged in parallel pushes the friction block to move in the direction of the friction disk until friction is generated between the friction block and the friction disk. Under the action of friction force, the rotating speed of the friction disk is reduced, thereby reducing the rotating speed of the blade, realizing the adjustment of the rotating speed of the blade, and avoiding the blade from breaking due to excessive rotating speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the intelligent wind turbine with adjustable pitch; Figure 2 It is a schematic diagram of the internal structure of the installation box of the intelligent wind turbine with adjustable pitch; Figure 3 It is an enlarged schematic diagram of the structure at position A of the intelligent wind turbine with adjustable pitch; Figure 4 The present invention is a schematic diagram of the internal structure of the rotating platform of the intelligent wind turbine with adjustable pitch.

[0018] Description of the accompanying drawings: 1. Main body; 2. Base; 3. Fastening bolt; 4. Reinforcement rib; 5. Transformer; 6. Turntable; 7. Mounting seat; 8. Blade root; 9. Blade; 10. Protective cover; 11. Mounting box; 12. Movable end; 13. Connecting platform; 14. Main shaft; 15. Fixing ring; 16. Mounting frame; 17. Mounting plate; 18. First transmission shaft; 19. First transmission gear; 20. Second transmission gear; 21. Second transmission shaft; 22. Third transmission gear; 23. Fourth transmission The first telescopic rod has the following structure: a first telescopic rod having a first end and a second telescopic rod having a second end: a first telescopic rod having a first end and a second telescopic rod having a second end; a second ... second end and a second telescopic rod having a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod having a second end and a second end; a second telescopic rod DETAILED DESCRIPTION

[0019] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0020] like Figure 1-4 As shown, an intelligent wind turbine with adjustable pitch includes a main body 1, a pitch synchronization adjustment mechanism, an overload protection mechanism and a multi-level protection mechanism; A base 2 is fixedly provided at the bottom of the main body 1, the main body 1 is cylindrical, the base 2 is vertically arranged to the main body 1, a plurality of reinforcing ribs 4 are fixedly provided between the bottom of the side wall of the main body 1 and the top of the base 2, a plurality of fastening bolts 3 are threadedly connected to the top edge of the base 2, an installation box 11 is fixedly provided at the top of the main body 1, the installation box 11 is rectangular, a rotating table 6 is rotatably provided at the front end of the installation box 11, the rotating table 6 is cylindrical, and the end of the rotating table 6 away from the installation box 11 is hemispherical, a plurality of blades 9 are evenly arranged on the side wall of the rotating table 6, the pitch synchronization adjustment mechanism is arranged between the rotating table 6 and the blade 9, the overload protection mechanism is arranged inside the installation box 11, the multi-stage protection mechanism is arranged in the middle of the blade 9, and a transformer 5 is detachably provided in the middle of the side wall of the main body 1. When in use, the length of the blade 9 can be synchronously adjusted through the pitch synchronization adjustment mechanism to avoid uneven force on the blade 9 due to different lengths of the blade 9. When generating electricity, the speed of the blade 9 can be adjusted through the overload protection mechanism to avoid the blade 9 breaking due to excessive speed. When the pitch synchronization adjustment mechanism is in operation, it drives the multi-level protection mechanism to protect the blade 9 to avoid damage to the blade 9.

[0021] The pitch synchronous adjustment mechanism includes a driving motor 35, which is fixedly arranged at one end of the rotating platform 6 away from the installation box 11, the axis of the driving motor 35 is coaxially arranged with the rotating platform 6, the output end of the driving motor 35 faces the installation box 11, the output end of the driving motor 35 is provided with a rotating shaft 36, the other end of the rotating shaft 36 is provided with a driving bevel gear 37, the edge of the driving bevel gear 37 is meshed with a plurality of driven bevel gears 38, and the plurality of driven bevel gears 38 are evenly arranged around the axis of the driving bevel gear 37. When adjusting the pitch, the driving motor 35 is started, so that the rotating shaft 36 starts to rotate, and when the rotating shaft 36 rotates, the driving bevel gear 37 is driven to start rotating, and when the driving bevel gear 37 rotates, the driven bevel gear 38 meshed with it is driven to start rotating.

[0022] A plurality of mounting seats 7 are fixedly provided on the outer side wall of the rotating platform 6, a blade root 8 is fixedly provided at the connection between the blade 9 and the mounting seat 7, the position and number of the driven bevel gear 38 match the position and number of the mounting seat 7, a transmission rod 39 is vertically provided at the axis of one side of the driven bevel gear 38 facing the mounting seat 7, and the transmission rod 39 is coaxially provided with the mounting seat 7. When the driven bevel gear 38 rotates, it drives the transmission rod 39 to start rotating.

[0023] An inner hole 43 is provided inside the paddle 9, and a movable end 12 is provided at the outer end of the paddle 9. A protrusion 44 is provided at the connection between the paddle 9 and the movable end 12. The movable end 12 is slidably connected to the outer end of the paddle 9 through the protrusion 44. The cross-sectional shape of the protrusion 44 is elliptical. A threaded hole 40 is provided inside one end of the movable end 12 facing the protrusion 44. The threaded hole 40 is coaxially arranged with the inner hole 43. The outer end of the transmission rod 39 passes through the protrusion 44 and extends to the inside of the threaded hole 40. The outer end of the transmission rod 39 is provided with a threaded portion 41, and the threaded portion 41 is rotatably connected to the threaded hole 40. When the transmission rod 39 rotates, the threaded portion 41 at the other end thereof starts to rotate. When the threaded portion 41 rotates in the threaded hole 40 threadedly connected thereto, it generates an outward thrust on the movable end 12, causing the movable end 12 to move outward along the protrusion 44, thereby increasing the length of the blade 9, thereby achieving synchronous adjustment of the length of the blade 9 and avoiding uneven force on the blade 9 due to different lengths of the blade 9.

[0024] The overload protection mechanism includes a connecting platform 13, which is arranged on a side wall of the rotating platform 6 facing the installation box 11, and the connecting platform 13 is coaxially arranged with the rotating platform 6. The other end of the connecting platform 13 penetrates the installation box 11 and extends to the inside of the installation box 11. The center of the side wall of one end of the connecting platform 13 extending to the inside of the installation box 11 is connected with a main shaft 14, and the outer wall of the main shaft 14 is sleeved with a fixing ring 15 on both sides. The fixing ring 15 is rotatably connected with the main shaft 14, and a mounting plate 17 is arranged at the bottom of the fixing ring 15. The top of the mounting plate 17 is fixedly connected with the fixing ring 15, and a mounting frame 16 is fixedly arranged at the bottom of the mounting plate 17. The bottom end of the mounting frame 16 is fixedly connected with the inner bottom of the installation box 11. When generating electricity, the blades 9 start to rotate under the action of wind force, so that the rotating platform 6 starts to rotate. When the rotating platform 6 rotates, the connecting platform 13 is driven to rotate accordingly, and when the connecting platform 13 rotates, the main shaft 14 starts to rotate.

[0025] A first transmission shaft 18 is provided at one end of the main shaft 14 away from the connecting platform 13. The first transmission shaft 18 is coaxially arranged with the main shaft 14. A spline is provided on the outer wall of the end where the first transmission shaft 18 and the main shaft 14 are connected. A first transmission gear 19 is connected to the other end of the first transmission shaft 18. A second transmission gear 20 is meshed with the bottom of the first transmission gear 19. The diameter of the first transmission gear 19 is larger than that of the second transmission gear 20. A second transmission shaft 21 is connected to the axis of the second transmission gear 20 away from the first transmission shaft 18. 21 is rotatably connected to the bottom of the installation box 11 through a vertical plate, and a third transmission gear 22 is arranged at the other end of the second transmission shaft 21, and the diameter of the third transmission gear 22 is larger than that of the second transmission gear 20. A fourth transmission gear 23 is arranged on the top of the third transmission gear 22, and the diameter of the third transmission gear 22 is larger than that of the fourth transmission gear 23. A third transmission shaft 24 is connected to the axis of the fourth transmission gear 23 away from the second transmission shaft 21, and a generator 25 is connected to the other end of the third transmission shaft 24, and the generator 25 is electrically connected to the transformer 5. When the main shaft 14 rotates, it drives the first transmission shaft 18 connected thereto to start rotating, so that the first transmission gear 19 starts rotating. When the first transmission gear 19 rotates, it drives the second transmission gear 20 at its bottom to rotate at high speed, so that the second transmission shaft 21 and the third transmission gear 22 start rotating. When the third transmission gear 22 rotates, it drives the fourth transmission gear 23 meshing with it to further accelerate its rotation. When the fourth transmission gear 23 rotates, it drives the third transmission shaft 24 to start rotating. The mechanical energy of the third transmission shaft 24 can be converted into electrical energy through the generator 25, and then output through the transformer 5.

[0026] A friction disc 32 is provided on the side wall of one end of the third transmission shaft 24 facing the generator 25, a friction block 33 is provided on the top of the friction disc 32, the top of the friction block 33 is fixedly connected to the top of the installation box 11 by a connecting rod 34, an adjusting wheel 26 is provided between the friction disc 32 and the fourth transmission gear 23, a side wall of the adjusting wheel 26 facing the friction disc 32 is evenly provided with a plurality of slide grooves 27 in a radial shape around the third transmission shaft 24, a push block 28 is slidably provided on the outer side of the slide groove 27, a stopper 31 is provided on the bottom of the side wall of the friction block 33 facing the push block 28, the opposite side walls of the push block 28 and the stopper 31 are provided with parallel inclined surfaces 29, and the friction block 33 is elastically arranged. When the third transmission shaft 24 rotates, it drives the friction plate 32 and the adjusting wheel 26 to rotate accordingly. When the speed of the adjusting wheel 26 is faster, the centrifugal force on the push block 28 is greater, and the amplitude of its outward movement is greater. The spring 30 is stretched to generate an elastic force in the opposite direction. When the push block 28 moves to contact the stop block 31, the inclined surface 29 arranged parallel to the same pushes the friction block 33 to move in the direction of the friction plate 32 until friction is generated between the friction block 33 and the friction plate 32. Under the action of the friction force, the speed of the friction plate 32 is reduced, thereby reducing the speed of the blade 9, thereby realizing the adjustment of the speed of the blade 9 and preventing the blade 9 from breaking due to excessive speed.

[0027] The multi-stage protection mechanism includes a protective sleeve 10, which is fixedly arranged on the outer wall of the connection between the blade 9 and the movable end 12. The shape of the protective sleeve 10 matches the cross-sectional shape of the blade 9, and a gap is arranged between the protective sleeve 10 and the outer wall of the blade 9. By arranging the protective sleeve 10, the strength of the connection between the blade 9 and the movable end 12 can be increased to prevent the blade 9 from being damaged.

[0028] A plurality of first telescopic rods 42 are provided between the outer wall of one end of the movable end 12 toward the blade 9 and the middle of the inner wall of the protective cover 10, and the maximum length of the first telescopic rods 42 is greater than the depth of the threaded hole 40. When the movable end 12 moves outward, the first telescopic rods 42 at the inner end thereof are extended, and at the same time, they are rotated toward the axis direction of the transmission rod 39, thereby increasing the axial strength of the blade 9.

[0029] A plurality of second telescopic rods 45 are connected between the outer edges of the connection between the blade 9 and the movable end 12. The second telescopic rods 45 are arranged in parallel with the transmission rod 39. The fixed ends of the second telescopic rods 45 protrude from the outer edges of the blade 9. The outer edges of the movable end 12 are provided with a plurality of clamping holes 46. The positions and sizes of the clamping holes 46 match the fixed ends of the second telescopic rods 45. When the movable end 12 moves outward, the second telescopic rods 45 are extended at the same time, which further increases the strength of the blade 9, protects the blade 9, and prevents the blade 9 from being damaged.

[0030] Working principle: When adjusting the pitch, the driving motor 35 is started, so that the rotating shaft 36 starts to rotate, and when the rotating shaft 36 rotates, it drives the driving bevel gear 37 to start rotating, and when the driving bevel gear 37 rotates, it drives the driven bevel gear 38 meshing therewith to start rotating, and when the driven bevel gear 38 rotates, it drives the transmission rod 39 to start rotating, and when the transmission rod 39 rotates, it drives the threaded portion 41 at the other end to start rotating, and when the threaded portion 41 rotates in the threaded hole 40 threadedly connected thereto, it generates an outward thrust on the movable end 12, so that the movable end 12 moves outward along the protrusion 44, so that the length of the blade 9 increases, thereby realizing the synchronous adjustment of the length of the blade 9, and avoiding uneven force on the blade 9 caused by different lengths of the blade 9.

[0031] When generating electricity, the blades 9 start to rotate under the action of wind force, so that the rotating table 6 starts to rotate. When the rotating table 6 rotates, it drives the connecting table 13 to rotate accordingly. When the connecting table 13 rotates, it drives the main shaft 14 to start rotating. When the main shaft 14 rotates, it drives the first transmission shaft 18 connected thereto to start rotating, so that the first transmission gear 19 starts to rotate. When the first transmission gear 19 rotates, it drives the second transmission gear 20 at the bottom thereof to rotate at a high speed, so that the second transmission shaft 21 and the third transmission gear 22 start to rotate. When the third transmission gear 22 rotates, it drives the fourth transmission gear 23 meshed with it to further accelerate its rotation. When the fourth transmission gear 23 rotates, it drives the third transmission shaft 24 to start rotating. The third transmission shaft 21 can be driven by the generator 25. The mechanical energy of the moving shaft 24 is converted into electrical energy and then output through the transformer 5. When the third transmission shaft 24 rotates, the friction plate 32 and the adjusting wheel 26 are driven to rotate accordingly. When the speed of the adjusting wheel 26 is faster, the centrifugal force on the push block 28 is greater, and the amplitude of its outward movement is greater. The spring 30 is stretched to generate an elastic force in the opposite direction. When the push block 28 moves to contact the stop block 31, the inclined surface 29 arranged in parallel pushes the friction block 33 to move in the direction of the friction plate 32 until friction is generated between the friction block 33 and the friction plate 32. Under the action of the friction force, the speed of the friction plate 32 is reduced, thereby reducing the speed of the blade 9, thereby realizing the adjustment of the speed of the blade 9 and preventing the blade 9 from breaking due to excessive speed.

[0032] By providing the protective cover 10, the strength of the connection between the blade 9 and the movable end 12 can be increased to prevent the blade 9 from being damaged. When the movable end 12 moves outward, it drives the first telescopic rod 42 at its inner end to extend, and at the same time rotates toward the axial direction of the transmission rod 39, thereby increasing the axial strength of the blade 9. When the movable end 12 moves outward, it drives the second telescopic rod 45 to extend, thereby further increasing the strength of the blade 9, protecting the blade 9, and preventing the blade 9 from being damaged.

[0033] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. An intelligent wind turbine with adjustable pitch, characterized in that: It comprises a main body (1), a pitch synchronization adjustment mechanism, an overload protection mechanism and a multi-stage protection mechanism; A base (2) is fixedly provided at the bottom of the main body (1); the main body (1) is cylindrical; the base (2) is vertically arranged with respect to the main body (1); a plurality of reinforcing ribs (4) are fixedly provided between the bottom of the side wall of the main body (1) and the top of the base (2); a plurality of fastening bolts (3) are threadedly connected to the top edge of the base (2); an installation box (11) is fixedly provided at the top of the main body (1); the installation box (11) is rectangular; and the front end of the installation box (11) is rotatable. A rotating table (6) is provided, the rotating table (6) being arranged in a cylindrical shape, the end of the rotating table (6) away from the installation box (11) being arranged in a hemispherical shape, a plurality of blades (9) being evenly arranged on the side wall of the rotating table (6), the pitch synchronization adjustment mechanism being arranged between the rotating table (6) and the blades (9), the overload protection mechanism being arranged inside the installation box (11), the multi-stage protection mechanism being arranged in the middle of the blades (9), and a transformer (5) being detachably arranged in the middle of the side wall of the main body (1).

2. The pitch-adjustable smart wind turbine according to claim 1, characterized in that The pitch synchronous adjustment mechanism comprises a drive motor (35), the drive motor (35) being fixedly arranged at one end of the rotating table (6) away from the installation box (11), the axis of the drive motor (35) being coaxially arranged with the rotating table (6), the output end of the drive motor (35) facing the installation box (11), the output end of the drive motor (35) being provided with a rotating shaft (36), the other end of the rotating shaft (36) being provided with a drive bevel gear (37), the edge of the drive bevel gear (37) being meshed with a plurality of driven bevel gears (38), and the plurality of driven bevel gears (38) being evenly arranged around the axis of the drive bevel gear (37).

3. The pitch-adjustable smart wind turbine according to claim 2, characterized in that A plurality of mounting seats (7) are fixedly provided on the outer side wall of the rotating table (6); a blade root (8) is fixedly provided at the connection between the blade (9) and the mounting seat (7); the position and number of the driven bevel gear (38) match the position and number of the mounting seat (7); a transmission rod (39) is vertically provided at the axis of one side of the driven bevel gear (38) facing the mounting seat (7); and the transmission rod (39) is coaxially provided with the mounting seat (7).

4. The pitch-adjustable smart wind turbine according to claim 3, characterized in that An inner hole (43) is provided inside the blade (9); a movable end (12) is provided at the outer movable end of the blade (9); a protrusion (44) is provided at the connection between the blade (9) and the movable end (12); the movable end (12) is slidably connected to the outer end of the blade (9) through the protrusion (44); the cross-sectional shape of the protrusion (44) is elliptical; a threaded hole (40) is provided inside one end of the movable end (12) facing the protrusion (44); the threaded hole (40) is coaxially arranged with the inner hole (43); the outer end of the transmission rod (39) passes through the protrusion (44) and extends to the inside of the threaded hole (40); the outer end of the transmission rod (39) is provided with a threaded portion (41); the threaded portion (41) is rotatably connected to the threaded hole (40).

5. The pitch-adjustable smart wind turbine according to claim 1, characterized in that The overload protection mechanism comprises a connecting platform (13), wherein the connecting platform (13) is arranged on a side wall of the rotating platform (6) facing the installation box (11), the connecting platform (13) and the rotating platform (6) are arranged coaxially, the other end of the connecting platform (13) penetrates the installation box (11) and extends into the interior of the installation box (11), a main shaft (14) is connected to the center of the side wall of one end of the connecting platform (13) extending into the interior of the installation box (11), fixing rings (15) are sleeved on both sides of the outer wall of the main shaft (14), the fixing ring (15) is rotatably connected to the main shaft (14), a mounting plate (17) is arranged at the bottom of the fixing ring (15), the top of the fixing plate (17) is fixedly connected to the fixing ring (15), a mounting frame (16) is fixedly arranged at the bottom of the mounting plate (17), and the bottom end of the mounting frame (16) is fixedly connected to the inner bottom of the installation box (11).

6. The pitch-adjustable smart wind turbine according to claim 5, characterized in that A first transmission shaft (18) is arranged at one end of the main shaft (14) away from the connecting platform (13); the first transmission shaft (18) is coaxially arranged with the main shaft (14); a spline is arranged on the outer wall of the end portion where the first transmission shaft (18) and the main shaft (14) are connected; the other end of the first transmission shaft (18) is connected to a first transmission gear (19); a second transmission gear (20) is meshed with the bottom of the first transmission gear (19); the diameter of the first transmission gear (19) is larger than that of the second transmission gear; a second transmission shaft (21) is connected to the axis of the second transmission gear on one side away from the first transmission shaft (18); the second transmission shaft (21) is meshed with the first transmission gear (19); The bottoms of the installation boxes (11) are rotatably connected via a vertical plate; a third transmission gear (22) is disposed at the other end of the second transmission shaft (21); the diameter of the third transmission gear (22) is larger than that of the second transmission gear (20); a fourth transmission gear (23) is disposed on the top of the third transmission gear (22); the diameter of the third transmission gear (22) is larger than that of the fourth transmission gear (23); a third transmission shaft (24) is connected to the axis of the fourth transmission gear (23) at a side away from the second transmission shaft (21); a generator (25) is connected to the other end of the third transmission shaft (24); and the generator (25) is electrically connected to the transformer (5).

7. The pitch-adjustable smart wind turbine according to claim 6, characterized in that A friction disc (32) is arranged on the side wall of one end of the third transmission shaft (24) facing the generator (25), a friction block (33) is arranged on the top of the friction disc (32), the top of the friction block (33) is fixedly connected to the top of the installation box (11) via a connecting rod (34), an adjusting wheel (26) is arranged between the friction disc (32) and the fourth transmission gear (23), a side wall of the adjusting wheel (26) facing the friction disc (32) is evenly arranged with a plurality of slide grooves (27) in a radial shape around the third transmission shaft (23), a push block (28) is slidably arranged on the outside of the slide groove (27), a stop block (31) is arranged on the bottom of the side wall of the friction block (33) facing the push block (28), the opposing side walls of the push block (28) and the stop block (31) are both provided with parallel inclined surfaces, and the friction block (33) is elastically arranged.

8. The pitch-adjustable smart wind turbine according to claim 4, characterized in that The multi-stage protection mechanism comprises a protection sleeve (10), wherein the protection sleeve (10) is fixedly arranged on the outer wall of the connection between the blade (9) and the movable end (12), the shape of the protection sleeve (10) matches the cross-sectional shape of the blade (9), and a gap is arranged between the protection sleeve (10) and the outer wall of the blade (9).

9. The pitch-adjustable smart wind turbine according to claim 8, characterized in that A plurality of first telescopic rods (42) are arranged to rotate between the outer wall of one end of the movable end (12) facing the blade (9) and the middle part of the inner wall of the protective sleeve (10), and the maximum length of the first telescopic rods (42) is greater than the depth of the threaded hole (40).

10. The pitch-adjustable smart wind turbine according to claim 9, characterized in that A plurality of second telescopic rods (45) are connected between the outer edges of the connection between the paddle blade (9) and the movable end (12); the second telescopic rods (45) are arranged in parallel with the transmission rod (39); the fixed ends of the second telescopic rods (45) protrude from the outer edges of the paddle blades (9); the outer edges of the movable end (12) are provided with a plurality of clamping holes (46); the positions and sizes of the clamping holes (46) match those of the fixed ends of the second telescopic rods (45).

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