Large fan blade sail power generation fan

Abstract

The invention discloses a large fan blade sail power generation fan which comprises side sail auxiliary systems arranged on fan blades and a front sail auxiliary system arranged at the front end of a flow guide cover. The side sail auxiliary system comprises a side sail, a fixing rod which is arranged on fan blades and used for fixing and adjusting the angle of the side sail according to the magnitude of wind power, and a winding and unwinding device which is located in the fan blades and used for unwinding or winding the side sail according to the magnitude of wind power. The front sail auxiliary system comprises a front sail, a deflection and contraction device used for adjusting the angle of the front sail and / or conducting unwinding or winding according to the wind power, and a balance device arranged at the top of the flow guide cover and used for keeping tension balance of the front sail, and through the sail auxiliary system, a plurality of adjusting devices are arranged under the condition that the size of fan blades is not changed; the expansion area of the sail is changed and the angle of the sail is adjusted according to the wind power, so that the power generation effect is better, multiple wind power grades are adapted, and the influence on the power generation fan is reduced.

Description

Technical Field

[0001] The invention relates to mechanical equipment, in particular to a large-scale wind blade sail power generation fan. Background Art

[0002] The principle of wind power generation is to use wind power to drive the windmill blades to rotate, and then increase the rotation speed through a speed increaser to prompt the generator to generate electricity. According to windmill technology, power generation can begin at a breeze speed of about three meters per second. How to reduce the cost of wind power generation is an important topic that the wind power industry must study, but high-power wind turbines often mean extra-long blades, and the transportation of extra-long blades is very difficult, especially for winding mountain roads with complex terrain, where the transportation of large blades is even more difficult, which greatly increases the transportation cost. The role of increasing the blade length is to increase the blade swept area and improve the blade's ability to capture wind energy, but existing wind turbines have the following disadvantages: the blades are too long, making transportation and installation more difficult, and due to the large blade area, the swept area is too large in strong wind weather or even typhoon weather, causing damage to the blades or even the entire wind turbine. Therefore, it is of practical significance to design a wind turbine that can solve the above problems. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a large-scale wind blade sail power generation wind turbine, which can adapt to various wind force levels.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a large-scale wind blade sail power generation wind turbine, the power generation wind turbine includes a wind blade, a generator, a fairing and a tower, the power generation wind turbine is provided with a sail auxiliary system, the sail auxiliary system includes a side sail auxiliary system arranged on the wind blade and a front sail auxiliary system arranged at the front end of the fairing, the side sail auxiliary system includes a side sail, a fixing rod arranged on the wind blade for fixing and adjusting the angle of the side sail according to the wind force, and a winding and unwinding device located inside the wind blade for unwinding or winding the side sail according to the wind force, the front sail auxiliary system includes a front sail, a deflection and retraction device for adjusting the angle of the front sail according to the wind force and / or unwinding or winding, and a balancing device arranged on the top of the fairing for maintaining the tension balance of the front sail.

[0005] Furthermore, a support member for increasing the stiffness of the blade is provided inside the wind blade, and the retracting and unreeling device includes a sail retracting mechanism arranged on the support member, a rope retracting mechanism located on the inner side wall of the wind blade, and an auxiliary wheel arranged at the tail of the trailing edge of the wind blade for assisting in retracting and unreeling the side sail, and a switchable sail maintenance port is also provided on the trailing edge of the wind blade.

[0006] Furthermore, the sail reeling mechanism includes a sail reeling motor, a reducer and a sail reeling rod, and the rope reeling device includes a rope reeling motor, a reducer and a rope reeling wheel.

[0007] Furthermore, the fixing rod includes an upper fixing rod and a lower fixing rod, the upper fixing rod is a retractable rod that is retracted and extended as the side sail is rolled up and unrolled, the lower fixing rod is provided with a sliding mechanism for assisting the rolling up and unrolling of the side sail and a driving mechanism for driving the lower fixing rod to deflect and swing, a multi-degree-of-freedom rotation mechanism assisting the deflection and swinging of the lower fixing rod is provided between the lower fixing rod and the wind blades, the sail sliding mechanism includes an auxiliary pulley located at the front end of the lower fixing rod for assisting the rope rolling up, a slide rail opened on the fixing rod, and a hanging wheel and a sliding block matching the slide rail.

[0008] Furthermore, the driving mechanism is a hydraulic driving rod, and a universal shaft is provided at the connection between the hydraulic driving rod and the fixed rod.

[0009] Furthermore, a rotating shaft is provided at the tail end of the fixed rod, a movable frame rotatably connected to the connecting end of the multi-degree-of-freedom rotating mechanism and the fan blade is provided, a hydraulic rod for driving the movable frame to move up and down is provided on the movable frame, a rotating ball head is provided at the tail end of the movable frame, and the rotating ball head is connected to the rotating shaft on the fixed rod.

[0010] Furthermore, the deflection and contraction device includes a fixed chassis, a central axis arranged in the center of the fixed chassis, a sail pole arranged around the fixed chassis, and a power drive rod staggered with the sail pole, a rotating disk is arranged on the central axis, a power drive rod is connected between the rotating disk and the fixed chassis, and a sail pole recovery buckle is fixedly arranged on the top of the central axis.

[0011] Furthermore, a thread is provided in the middle section of the central shaft, the rotating disk is fixedly connected with a rotating sleeve matching the shaft thread, the rotating disk is provided with a sliding sleeve slidably connected to the sail pole, a cross universal joint is provided between the sliding sleeve and the rotating disk, a sail storage device is provided on the sail pole, a hydraulic movable rod is provided between the sail storage device and the rotating disk, and cross universal joints are provided at both ends of the hydraulic movable rod.

[0012] Furthermore, the balancing device includes a winding motor, a continuously arranged rope winding rod, a rope guiding pulley arranged inside the deflector, and a rope auxiliary wheel arranged on the deflector cover body.

[0013] Furthermore, the wind blades are provided with a plurality of strong wires fixedly connected to the wind turbine, and the rope connection ends are all provided with rope buckles.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is provided with a side sail auxiliary system and a front sail auxiliary system. Without changing the volume of the wind blades, the wind sweeping area of ​​the wind blades can be increased by unfolding the sails, and a plurality of adjustment devices are provided. The sail unfolding area can be changed and the sail angle can be adjusted according to the wind force to achieve better power generation effect, adapt to multiple wind force levels and reduce the impact on the generator itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0016] Figure 1 This is an overall schematic diagram of the side sail auxiliary system when deployed in a light wind;

[0017] Figure 2 for Figure 1 A partial enlarged schematic diagram of the A part;

[0018] Figure 3 for Figure 1 A partial enlarged schematic diagram of the B part;

[0019] Figure 4 for Figure 1 A partial enlarged schematic diagram of the middle C part;

[0020] Figure 5 This is a schematic diagram of the cooperation between the lower fixed rod slider hanging wheel and the slide rail;

[0021] Figure 6 This is the overall schematic diagram of the front sail auxiliary system when deployed in a light wind;

[0022] Figure 7 This is a schematic diagram of the maintenance port that can be opened and closed for the fan blades;

[0023] Figure 8 It is a schematic diagram of the structure of the deflection and contraction device;

[0024] Fig. 9 This is the external top view of the balancing device;

[0025] Fig.10 This is a schematic diagram of the internal workings of the balancing device;

[0026] Fig.11 This is a schematic diagram of the sail furling mechanism structure;

[0027] Fig.12 It is a schematic diagram of the structure of the rope winding mechanism; DETAILED DESCRIPTION

[0028] 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.

[0029] See attached Figures 1 to 12As shown, this embodiment provides a large-scale wind blade sail power generation wind turbine, + the power generation wind turbine includes a wind blade 3, a generator 7, a guide cover 4 and a tower 5, the wind blade 3 is provided with a support for increasing the stiffness of the wind blade, the power generation wind turbine is provided with a sail auxiliary system, the sail auxiliary system includes a side wind sail auxiliary system 1 provided on the wind blade 3 and a front wind sail auxiliary system 2 provided at the front end of the guide cover, the side wind sail auxiliary system 1 includes a side wind sail, a fixing rod provided on the wind blade 3 for fixing and adjusting the angle of the side wind sail according to the wind force, and a winding and unwinding device located inside the wind blade 3 for unwinding or winding the side wind sail according to the wind force, the fixing rod includes an upper fixing rod 14 and a lower fixing rod 11, the upper fixing rod 14 is provided with the side wind sail, and the fixing rod 14 is provided with the side wind sail. A telescopic rod for retracting and unwinding the sail, the lower fixed rod 11 is provided with a sliding mechanism for assisting the side sail to be retracted and unwound and a driving mechanism for driving the lower fixed rod 11 to deflect and swing, a multi-degree-of-freedom rotation mechanism for assisting the deflection and swinging of the lower fixed rod 11 is provided between the lower fixed rod 11 and the wind blade 3, the sail sliding mechanism includes an auxiliary pulley 111 located at the front end of the lower fixed rod 11 for assisting the rope to be reeled in, a slide rail 112 provided on the lower fixed rod 11, and a hanging wheel 118 and a slider 119 matched with the slide rail, the driving mechanism is a hydraulic drive rod 114, the hydraulic drive rod 114 is multiple and a universal shaft is provided at the connection with the lower fixed rod 11, a rotating shaft 115 is provided at the tail of the fixed rod 11, and the multi-degree-of-freedom A movable frame 117 is provided at the connection end between the rotating mechanism and the wind blade 3, and a hydraulic rod 116 for driving the movable frame to move up and down is provided on the movable frame 117. A rotating ball head is provided at the tail end of the movable frame 117. A rope for controlling the angle range of the lower fixed rod and the turning insurance angle range to be maximized is provided under the lower fixed rod 11. The rotating ball head is connected to the rotating shaft 115 on the fixed rod 11. The winding and unwinding device includes a sail winding mechanism 12 provided on the support member, a rope winding mechanism 13 located on the inner side wall of the wind blade 3, and an auxiliary wheel 32 provided at the rear end of the rear edge of the wind blade 3 for assisting the winding and unwinding of the side sail. A switchable sail maintenance port 31 is also provided on the rear edge of the wind blade 3. The sail winding mechanism 12 includes a sail winding motor 121, a reducer 122 and a sail reeling rod 123, the rope reeling device 13 comprises a rope reeling motor 131, a reducer 132 and a rope reeling wheel 133, the front sail auxiliary system 2 comprises a front sail, a deflection and retraction device 21 for adjusting the angle of the front sail according to the wind force and / or performing unwinding or rewinding, and a balancing device 22 arranged on the top of the fairing 4 for maintaining the tension balance of the front sail, the deflection and retraction device 21 comprises a fixed chassis 211, a central axis 214 arranged at the center of the fixed chassis 211, a rotating disk 212 is arranged on the central axis 214, a thread is arranged in the middle section of the central axis 214, a sail pole 216 arranged around the fixed chassis 211 and a power drive pole 219 arranged staggered with the sail pole,The central axis 214 is provided with a rotating disk 212, a power driving rod 219 is connected between the rotating disk 212 and the fixed chassis 211, a sail pole recovery buckle 215 is fixedly provided on the top of the central axis 214, a thread is provided in the middle section of the central axis 214, a rotating sleeve 213 matching the shaft thread is fixedly connected to the rotating disk 212, a sliding sleeve 217 slidably connected to the sail pole 216 is provided on the rotating disk 212, a cross universal shaft is provided between the sliding sleeve 217 and the rotating disk 212, and the sail pole 216 is provided with a plurality of rotating sleeves 217, and a plurality of rotating sleeves 217 are provided between the rotating disk 212 and the rotating disk 212. 6 is provided with a sail storage device 218, a hydraulic movable rod is provided between the sail storage device 218 and the rotating disk 212, and a cross universal shaft is provided at both ends of the hydraulic movable rod. The balancing device 22 includes a front winding motor 223, a continuously arranged rope winding rod 224, a rope guide pulley 221 arranged inside the deflector 4, and a rope auxiliary wheel 222 arranged on the cover body of the deflector 4. The wind blade is provided with a plurality of strong lines fixed to the power generation wind turbine, and the rope connection ends are all provided with rope buckle wheels, which are generally shackles.

[0030] When the wind sensor 6 detects that the external wind force is too low, the control system sends a signal, and the rope reeling device 13 of the side sail auxiliary system 1 reels the rope, and at the same time, the side sail reeling device 12 releases the side sail. At this time, the upper fixed rod 14 extends, and the hanging wheel 118 and the slider 119 on the lower fixed rod 11 move with the rope reeling device 13. The side sail begins to move outward along the rear of the trailing edge of the wind blade 3 through the auxiliary wheel 32, and then the side sail is unfolded to increase the wind sweeping area of ​​the wind blade and enhance the power generation effect of the power generating wind turbine. The hydraulic drive rod 114 on the lower fixed rod 11 and the multi-degree-of-freedom rotation mechanism connected to the wind blade 3 adjust the lower fixed rod 11 according to the deflection angle of the wind blade 3. The side sail auxiliary system 1 starts to move, and the control system sends a command to the front sail auxiliary system 2, so that the power drive rod 219 in the deflection and contraction device 21 drives the rotating disk 212 to start rotating downward according to the thread on the central axis 214. When the driving force reaches a certain level, the sail pole 216 is separated from the sail pole recovery buckle 215 and starts to tilt with the rotating disk 212. A hydraulic movable rod is arranged between the rotating disk 212 and the sail storage device 218, and multiple universal shafts are arranged to have multiple degrees of freedom. 12 is provided with a sliding sleeve 217 which is slidably connected with the sail pole 216, and a cross universal shaft is provided between the sliding sleeve 217 and the rotating disk 212, so that the two have multiple degrees of freedom and have a driven effect and maintain balance, so that the sail storage device 218 finally achieves the effect of following the rotating disk, and at the same time, the rope winding device located inside the wind blade 3 starts to move synchronously according to the control system instruction, and the rope tension balancing device 22 arranged on the top of the deflector 4 also starts to move according to the control system instruction, through the front winding motor 223 and the rope guide pulley 221 inside the deflector 4 and the rope auxiliary wheel arranged on the cover body of the deflector 4 222 cooperates so that the front sail and its rope maintain a state of tension balance, and the sail storage device 218 connected to the sail pole 216 starts to move synchronously according to the command issued by the control system, the front sail reeling motor starts to release the sail, and adjusts the inclination angle of the front sail through the rotating disk 212, thereby achieving the effect of adjusting the front sail angle according to the wind force level to assist the power generation fan to generate electricity, and the computer control system controls the various driving devices, rope reeling motors and sail reeling motors through the external wind force monitored by the wind sensor 6 to control the size of the sail deployment and the deflection angle according to the wind force level, thereby achieving the effect of adapting to each level of wind force.

[0031] When the wind sensing device detects that the wind is strong and there is a risk of damaging the power generation system, the control system sends instructions to each driving device, and the rope reeling device 13 of the side sail starts to release the rope, and the sail reeling device 12 of the side sail reels the sail synchronously. At this time, the upper fixed rod 14 shrinks inward, and the hanging wheel 118 slider 119 on the lower fixed rod 11 moves toward the end of the wind blade 3 with the rope reeling device, and the side sail starts to move inward along the rear edge of the wind blade 3 through the auxiliary wheel 32 and reel. When the sail is completely retracted into the wind blade 3, , the hydraulic drive rod 114 on the lower fixed rod 11 and the multi-degree-of-freedom rotation mechanism connected to the wind blade 3 adjust the lower fixed rod 11 according to the deflection angle of the wind blade, so that the lower fixed rod 11 makes a large turn, reducing the influence of wind force to a minimum; when the side sail auxiliary system 1 starts to move, the control system sends a command to the front sail auxiliary system 2, and the balancing device 22 arranged on the top of the fairing 4 also starts to move according to the command of the control system, and the front wind sail and its rope are kept in a tension balance state through the cooperation of the front winding motor 223, the rope guide pulley 221 inside the fairing 4 and the rope auxiliary wheel 222 arranged on the cover body of the fairing 4. The command issued by the control system causes the power driving rod 219 in the deflection and contraction device 21 to drive the rotating disk 212 to start rotating upward according to the thread on the central axis 214. At this time, the sail pole 216 starts to tilt and rotate with the rotating disk 212, and at the same time, the sail storage device 218 and the sail pole 216 are driven by the rotating disk 212 and slowly tilt. At the same time, the rope winding device 13 located on the wind blade 3 The sail storage device 218 connected to the sail pole 216 starts to move synchronously according to the instructions issued by the control system, reels the sail inward, and drives the rotating disk through the power drive rod to start rotating upward according to the thread on the central axis 214, so that the tilted sail pole 216 drives the sail storage device 218 to straighten up. When the sail pole 216 is tilted to a certain angle, it will cooperate with the buckle of the sail pole recovery buckle 215 to fix the sail pole 216, completely reeling in the sail and achieving the effect of the protective device.

[0032] Preferably, the side sail auxiliary system and the front sail auxiliary system can be configured individually or simultaneously according to the environment.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art 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 defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A large wind blade sail power generation wind turbine, characterized in that: The power-generating wind turbine includes a wind blade, a generator, a fairing and a tower. The power-generating wind turbine is provided with a sail-auxiliary system, which includes a side sail-auxiliary system provided on the wind blade and a front sail-auxiliary system provided at the front end of the fairing. The side sail-auxiliary system includes a side sail, a fixing rod provided on the wind blade for fixing and adjusting the angle of the side sail according to the wind force, and a winding and unwinding device located inside the wind blade for unwinding or winding the side sail according to the wind force. The front sail-auxiliary system includes a front sail, a deflection and retraction device for adjusting the angle of the front sail according to the wind force and / or unwinding or winding it, and a balancing device provided on the top of the fairing for maintaining the tension balance of the front sail.

2. A large wind blade sail power generation wind turbine according to claim 1, characterized in that: A support member for increasing the stiffness of the blade is arranged inside the wind blade. The winding and unwinding device includes a sail winding mechanism arranged on the support member, a rope winding mechanism located on the inner side wall of the wind blade, and an auxiliary wheel arranged at the tail of the trailing edge of the wind blade for assisting in winding and unwinding the side sail. A sail maintenance port that can be opened and closed is also arranged on the trailing edge of the wind blade.

3. A large wind blade sail power generation wind turbine according to claim 1 or 2, characterized in that: The sail reeling mechanism comprises a sail reeling motor, a speed reducer and a sail reeling rod, and the rope reeling device comprises a rope reeling motor, a speed reducer and a rope reeling wheel.

4. A large wind blade sail power generation wind turbine according to claim 1, characterized in that: The fixing rod comprises an upper fixing rod and a lower fixing rod, the upper fixing rod is a retractable rod which is retracted and extended as the side sail is rolled up and unrolled, the lower fixing rod is provided with a sliding mechanism for assisting the rolling up and unrolling of the side sail and a driving mechanism for driving the lower fixing rod to deflect and swing, a multi-degree-of-freedom rotation mechanism which assists the deflection and swinging of the lower fixing rod is provided between the lower fixing rod and the wind blade, the sail sliding mechanism comprises an auxiliary pulley located at the front end of the lower fixing rod for assisting the rope rolling up, a slide rail provided on the fixing rod, and a hanging wheel and a sliding block matching the slide rail.

5. A large wind blade sail power generation wind turbine according to claim 4, characterized in that: The driving mechanism is a hydraulic driving rod, and a universal shaft is arranged at the connection between the hydraulic driving rod and the fixed rod.

6. A large wind blade sail power generation wind turbine according to claim 4, characterized in that: A rotating shaft is arranged at the tail of the fixed rod, a rotatably connected movable frame is arranged at the connecting end of the multi-degree-of-freedom rotating mechanism and the fan blade, a hydraulic rod for driving the movable frame to move up and down is arranged on the movable frame, a rotating ball head is arranged at the tail end of the movable frame, and the rotating ball head is connected to the rotating shaft on the fixed rod.

7. A large wind blade sail power generation wind turbine according to claim 1, characterized in that: The deflection and contraction device includes a fixed chassis, a central axis arranged in the center of the fixed chassis, sail poles arranged around the fixed chassis, and a power drive rod staggered with the sail poles. A rotating disk is arranged on the central axis, and a power drive rod is connected between the rotating disk and the fixed chassis. A sail pole recovery buckle is fixedly arranged on the top of the central axis.

8. A large wind blade sail power generation wind turbine according to claim 7, characterized in that: The middle section of the central shaft is provided with a thread, the rotating disk is fixedly connected with a rotating sleeve matching the shaft thread, the rotating disk is provided with a sliding sleeve slidably connected to the sail pole, a cross universal shaft is provided between the sliding sleeve and the rotating disk, the sail pole is provided with a sail storage device, a hydraulic movable rod is provided between the sail storage device and the rotating disk, and cross universal shafts are provided at both ends of the hydraulic movable rod.

9. The large-blade wind sail power generator according to claim 1, characterized in that: The balancing device comprises a winding motor, a continuously arranged rope winding rod, a rope guiding pulley arranged inside the deflector, and a rope auxiliary wheel arranged on the deflector cover body.

10. The large-scale wind blade sail power generation wind turbine according to claim 1, characterized in that: The wind blades are provided with a plurality of strong wires fixedly connected to the power generating wind turbine, and the rope connection ends are all provided with rope buckles.

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