Wind power supply device with overspeed adjustment function

Abstract

The invention relates to the technical field of wind power supply, in particular to an overspeed adjusting wind power supply device. According to the wind power supply device for overspeed adjustment, water spraying cooling can be conducted on the friction frame and the friction outer cylinder in the braking process, and losses of the friction frame and the friction outer cylinder are reduced. A wind power supply device with an overspeed adjusting function comprises a cabin, a hub and the like, and the hub is rotatably connected to the left side of the cabin. When moving frames approach each other, a first mounting ring is driven to approach a second mounting ring, so that permanent magnets approach each other, when the first mounting ring rotates, the second mounting ring is driven to rotate, a rotating shaft of a water pump is driven to rotate, water in a water tank is pumped into a water spraying pipe by the water pump, and the water is sprayed into a friction outer cylinder through the water spraying pipe; and the effects that the friction frame and the friction outer cylinder can be cooled by spraying water in the braking process, and the loss of the friction frame and the friction outer cylinder is reduced are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power supply, and in particular to a wind power supply device with overspeed regulation. Background Art

[0002] A wind power supply device, or wind power generation system, is a device that converts wind energy into electrical energy. It captures the kinetic energy in the wind and converts it into mechanical energy, which is then further converted into electrical energy for direct use or to be incorporated into the power grid. The braking device in a wind power supply device is an important component to ensure the safe operation of the system, especially when encountering overspeed conditions. The design of the braking device must be able to quickly and effectively reduce the speed of the wind turbine to a safe range to prevent damage to the mechanical and electrical systems. The braking device in an existing wind power supply device usually achieves braking by hydraulically or electrically driving the brake pad to press the metal disc mounted on the wheel hub or drive shaft. However, due to the large friction generated by the brake pad during braking, it is easy to cause the brake pad to wear, and may also cause loss of other related components, increasing maintenance costs and potential safety risks.

[0003] Therefore, a wind power supply device with overspeed regulation that can spray water to cool the friction frame and the friction outer cylinder during braking and reduce the loss of the friction frame and the friction outer cylinder has been developed. Summary of the invention

[0004] In order to overcome the shortcomings of the braking device in the existing wind power supply device, that is, the brake pad will generate large friction during braking, which may easily lead to wear of the brake pad and may also cause loss of other related components, increase maintenance costs and potential safety risks, the present invention provides a wind power supply device with over-speed adjustment that can spray water to cool the friction frame and the friction outer cylinder during braking to reduce the loss of the friction frame and the friction outer cylinder.

[0005] The technical implementation scheme of the present invention is: a wind power supply device for overspeed regulation, including a nacelle, a hub, blades, a low-speed shaft, a transmission assembly, a high-speed shaft, a generator, a reduction mechanism and a retarding mechanism. The left side of the nacelle is rotatably connected to the hub, and a plurality of blades are rotatably connected to the hub. The low-speed shaft is connected to the inner side of the left part of the hub, the inner side of the lower right part of the nacelle is connected to the generator, and the high-speed shaft is connected to the generator output shaft. A transmission assembly is provided inside the nacelle, and a reduction mechanism capable of slowing down the rotation speed is provided between the nacelle and the high-speed shaft, and the reduction mechanism is provided with a retarding mechanism capable of further slowing down the rotation speed of the high-speed shaft and reducing the temperature.

[0006] More preferably, a mounting hole is provided on the lower left side of the cabin.

[0007] More preferably, the transmission assembly includes a connecting box and gears, a connecting box is connected to the inner side of the lower left part of the cabin, the upper and lower parts of the connecting box are rotatably connected to gears, the gears are meshed with each other, the low-speed shaft is connected to the upper gear, and the high-speed shaft is connected to the lower gear.

[0008] More preferably, the deceleration mechanism includes a friction outer cylinder, a mounting sleeve, a friction frame, a connecting frame, a movable frame and a first spring, the friction outer cylinder is connected to the inner side of the lower right part of the cabin, the friction outer cylinder is located on the left part of the generator, the high-speed shaft passes through the friction outer cylinder, the middle part of the high-speed shaft is connected to the mounting sleeve, the mounting sleeve is located inside the friction outer cylinder, the mounting sleeve is rotatably connected to the friction outer cylinder, a plurality of friction frames are slidably connected to the mounting sleeve, the left and right sides of the friction frame are rotatably connected to connecting frames, the connecting frames on the same side are rotatably connected to movable frames, the movable frames are slidably connected to the mounting sleeve, and a plurality of first springs are connected between the movable frames and the mounting sleeve. When the speed of the high-speed shaft is too fast, the friction frame opens outward under the action of centrifugal force and contacts the friction outer cylinder, so that friction force is generated between the friction frame and the friction outer cylinder when the friction frame rotates, thereby slowing down the speed of the mounting sleeve, and then slowing down the speed of the high-speed shaft. When the friction frame opens outward, it drives the connecting frame to rotate and move, so that the movable frames approach each other and the first spring is squeezed and contracted.

[0009] More preferably, the deceleration mechanism includes a first mounting ring, a permanent magnet, a water tank, a water pump, a second mounting ring and a water spray pipe. The right side of the movable frame on the right side is connected to the first mounting ring, and a plurality of permanent magnets are connected to the first mounting ring. The inner side of the lower part of the cabin is connected to the water tank, and the water tank is located below the friction outer cylinder. The water tank is connected to the friction outer cylinder, and a water pump is connected to the upper side of the water tank. The water inlet pipe of the water pump is connected to the water tank, and the second mounting ring is connected to the rotating shaft of the water pump. A plurality of permanent magnets are also connected to the second mounting ring. A water spray pipe is connected to the water outlet of the water pump, and the water spray pipe is connected to the friction outer cylinder. When the movable frames approach each other, the first mounting ring is driven to approach the second mounting ring, and then the permanent magnets are brought close to each other, so that when the first mounting ring rotates, the second mounting ring is driven to rotate, and the rotating shaft of the water pump is driven to rotate, so that the water pump draws water in the water tank into the water spray pipe, and sprays it into the inside of the friction outer cylinder through the water spray pipe. When the water flows downward, it applies resistance to the friction frame to slow down its rotation speed, and then the water flows back to the water tank from the friction outer cylinder.

[0010] More preferably, a braking mechanism is also included, which includes a support seat, a driving assembly, a movable seat, an extrusion frame, a second spring and a ball. The support seat is connected to the inner side of the lower part of the cabin, the support seat is located in front of the friction outer cylinder, the support seat is provided with a driving assembly, the movable seat is slidably connected to the upper side of the support seat, the extrusion frame is slidably connected to the upper side of the movable seat, a second spring is connected between the extrusion frame and the movable seat, a plurality of balls are rotatably connected to the right side of the upper part of the extrusion frame, the extrusion frame is located on the left part of the movable frame on the left side, the driving assembly is started to move the movable seat to the right, so that the extrusion frame moves to the right, the balls squeeze the movable frame on the left side to move to the right, so that the friction frame opens outward and continuously close to the friction outer cylinder, and the second spring is used to buffer the extrusion frame to prevent the extrusion frame from squeezing too much force.

[0011] More preferably, the driving assembly includes a driving motor and a driving screw, the driving motor is connected to the right side of the support seat, the driving screw is connected to the output shaft of the driving motor, the driving screw is rotatably connected to the support seat, and the movable seat is threadedly connected to the driving screw.

[0012] More preferably, a pitch mechanism is also included, which includes a fixed block, a pitch motor, a worm and a turbine. Multiple groups of fixed blocks are connected inside the hub, each group consists of two fixed blocks, one of the fixed blocks in each group is connected to a pitch motor, and the fixed blocks in the same group are rotatably connected to the worms. The output shafts of the pitch motors are connected to adjacent worms, and turbines are connected to the sides where the blades are close to each other. The turbines are meshed with adjacent worms. Starting the pitch motor drives the worm to rotate and mesh with the turbine, causing the blades to rotate and reduce the wind-receiving area of ​​the blades.

[0013] More preferably, a heat dissipation mechanism is also included, which includes a heat conduction box and a heat sink. The heat conduction box is connected to the lower side of the middle part of the cabin, and the heat conduction box is located at the lower side of the water tank. A plurality of heat sinks are connected to the lower side of the heat conduction box. The heat on the water tank is conducted to the heat conduction box, and the heat sink is used to accelerate the heat dissipation efficiency of the heat conduction box.

[0014] More preferably, a prediction mechanism is also included, which includes a fixed seat and a wind speed detector. The fixed seat is connected to the upper right side of the cabin, and the wind speed detector is installed on the upper side of the fixed seat. The wind speed detector is electrically connected to the pitch motor, and the wind speed detector is electrically connected to the drive motor in the drive assembly. The wind speed detector detects the wind speed, and when the wind speed is too fast, the pitch motor and the drive motor in the drive assembly are controlled to start.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention drives the first mounting ring to approach the second mounting ring while moving the frames closer to each other, thereby making the permanent magnets closer to each other, so that when the first mounting ring rotates, the second mounting ring is driven to rotate, and the rotating shaft of the water pump is driven to rotate, so that the water pump draws water in the water tank into the water spray pipe, and sprays it into the friction outer cylinder through the water spray pipe, thereby achieving the effect of spraying water to cool the friction frame and the friction outer cylinder during braking, thereby reducing the loss of the friction frame and the friction outer cylinder.

[0016] 2. The present invention starts the driving motor in the driving assembly to drive the driving screw to rotate, so that the movable seat moves to the right, the extrusion frame moves to the right, the movable frame on the left side of the ball extrusion moves to the right, and the friction frame opens outward and continuously close to the friction outer cylinder, thereby achieving the effect of braking the high-speed shaft and ensuring the safety of wind power supply.

[0017] 3. When the wind is too strong, the present invention starts the variable pitch motor to drive the worm to rotate and mesh with the turbine, so that the blades rotate and the wind-receiving area of ​​the blades is reduced, thereby achieving the effect of being able to adjust the wind-receiving area of ​​the blades to slow down the hub rotation speed.

[0018] 4. The present invention conducts the heat on the water tank to the heat conduction box, and the heat sink is used to accelerate the heat dissipation efficiency of the heat conduction box, thereby accelerating the cooling of the water in the water tank and ensuring the cooling effect.

[0019] 5. The present invention detects the wind speed through a wind speed detector. When the wind speed is too fast, the variable pitch motor and the drive motor in the drive assembly are controlled to start, thereby achieving the effect of timely slowing down the rotation speed of the hub and the high-speed shaft to avoid equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a three-dimensional structural cross-sectional view of the present invention.

[0022] Figure 3 It is a partial three-dimensional structural cross-sectional view of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the speed reduction mechanism of the present invention.

[0024] Figure 5 It is a three-dimensional structural sectional view of the speed reduction mechanism of the present invention.

[0025] Figure 6 It is a partial three-dimensional structural sectional view of the speed reduction mechanism of the present invention.

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the friction outer cylinder and the mounting sleeve of the present invention.

[0027] Figure 8 It is a schematic diagram of the first three-dimensional structure of the deceleration mechanism of the present invention.

[0028] Fig. 9 It is a schematic diagram of the second three-dimensional structure of the deceleration mechanism of the present invention.

[0029] Fig.10 It is a sectional view of the three-dimensional structure of the deceleration mechanism of the present invention.

[0030] Fig.11 It is a structural schematic diagram of the braking mechanism of the present invention.

[0031] Fig.12 It is a three-dimensional structural schematic diagram of the braking mechanism of the present invention.

[0032] Fig.13 It is a schematic diagram of the three-dimensional structure of the pitch mechanism of the present invention.

[0033] Fig.14 It is a three-dimensional structural schematic diagram of the heat dissipation mechanism and the prediction mechanism of the present invention.

[0034] The markings of the components in the accompanying drawings are as follows: 1. Cabin, 11. Hub, 12. Blade, 13. Low-speed shaft, 14. Transmission assembly, 15. High-speed shaft, 16. Generator, 2. Speed ​​reduction mechanism, 20. Friction outer cylinder, 21. Mounting sleeve, 22. Friction frame, 23. Connecting frame, 24. Moving frame, 25. First spring, 3. Retarder, 30. First mounting ring, 31. Permanent magnet, 32. Water tank, 33. Water pump, 34. Second mounting ring, 35. Spray pipe, 4. Braking mechanism, 40. Support seat, 41. Drive assembly, 42. Moving seat, 43. Extrusion frame, 44. Second spring, 45. Ball, 5. Pitch mechanism, 50. Fixed block, 51. Pitch motor, 52. Worm, 53. Turbine, 6. Heat dissipation mechanism, 60. Heat conduction box, 61. Heat sink, 7. Prediction mechanism, 70. Fixed seat, 71. Wind speed detector. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention are described clearly and completely below. 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.

[0036] A wind power supply device with overspeed regulation, such as Figure 1-Figure 14As shown, it includes a cabin 1, a hub 11, blades 12, a low-speed shaft 13, a transmission assembly 14, a high-speed shaft 15, a generator 16, a reduction mechanism 2 and a retarding mechanism 3. The left side of the cabin 1 is rotatably connected to the hub 11, and a mounting hole is opened on the lower left side of the cabin 1 for easy installation. Three blades 12 are rotatably connected to the hub 11, the inner side of the left part of the hub 11 is connected to the low-speed shaft 13, the inner side of the lower right part of the cabin 1 is connected to the generator 16, and the output shaft of the generator 16 is connected to the high-speed shaft 15. A transmission assembly 14 is provided inside the cabin 1, and the transmission assembly 14 includes a connecting box and gears. A connecting box is connected to the inner side of the lower left part of the cabin 1, and the upper and lower parts of the connecting box are rotatably connected to gears, and the gears are meshed with each other. The low-speed shaft 13 is connected to the gear on the upper side, and the high-speed shaft 15 is connected to the gear on the lower side. A reduction mechanism 2 is provided between the cabin 1 and the high-speed shaft 15, and a retarding mechanism 3 is provided on the reduction mechanism 2.

[0037] like Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the reduction mechanism 2 includes a friction outer cylinder 20, a mounting sleeve 21, a friction frame 22, a connecting frame 23, a movable frame 24 and a first spring 25. The friction outer cylinder 20 is connected to the inner side of the lower right part of the nacelle 1, and the friction outer cylinder 20 is located on the left part of the generator 16. The high-speed shaft 15 passes through the friction outer cylinder 20. The middle part of the high-speed shaft 15 is connected to the mounting sleeve 21, and the mounting sleeve 21 is located inside the friction outer cylinder 20. The mounting sleeve 21 is rotatably connected to the friction outer cylinder 20. Six friction frames 22 are slidably connected to the mounting sleeve 21. The left and right sides of the friction frames 22 are rotatably connected to the connecting frames 23. The connecting frames 23 on the same side are rotatably connected to the movable frames 24. The movable frames 24 are slidably connected to the mounting sleeve 21. Two first springs 25 are connected between the movable frames 24 and the mounting sleeve 21.

[0038] like Figure 2 , Figure 8 , Fig. 9 and Fig.10 As shown, the deceleration mechanism 3 includes a first mounting ring 30, a permanent magnet 31, a water tank 32, a water pump 33, a second mounting ring 34 and a water spray pipe 35. The right side of the mobile frame 24 is connected to the first mounting ring 30, and a plurality of permanent magnets 31 are connected to the first mounting ring 30. The inner side of the lower part of the cabin 1 is connected to the water tank 32, and the water tank 32 is located below the friction outer cylinder 20. The water tank 32 is connected to the friction outer cylinder 20. The upper side of the water tank 32 is connected to the water pump 33, and the water inlet pipe of the water pump 33 is connected to the water tank 32. The rotating shaft of the water pump 33 is connected to the second mounting ring 34, and a plurality of permanent magnets 31 are also connected to the second mounting ring 34. A water spray pipe 35 is connected to the water outlet of the water pump 33, and the water spray pipe 35 is connected to the friction outer cylinder 20.

[0039] When using the present invention, the nacelle 1 is first installed in the wind power generation area. When there is wind, the blades 12 rotate, driving the hub 11 to rotate, causing the low-speed shaft 13 to rotate, and the gear meshing movement in the transmission assembly 14 causes the high-speed shaft 15 to rotate, thereby causing the generator 16 to generate electricity. When the speed of the high-speed shaft 15 is too fast, the friction frame 22 opens outwards under the action of centrifugal force and contacts the friction outer cylinder 20, so that when the friction frame 22 rotates, friction is generated between the friction outer cylinder 20, slowing down the speed of the installation sleeve 21, thereby slowing down the speed of the high-speed shaft 15. When the friction frame 22 opens outwards, it drives the connecting frame 23 to rotate and move, so that the moving frames 24 are close to each other, and the first spring 25 is subjected to When the moving frames 24 are squeezed and contracted, they move closer to each other, driving the first mounting ring 30 to move closer to the second mounting ring 34, and then the permanent magnets 31 move closer to each other, so that when the first mounting ring 30 rotates, it drives the second mounting ring 34 to rotate, driving the rotating shaft of the water pump 33 to rotate, so that the water pump 33 draws water from the water tank 32 into the water spray pipe 35, and sprays it into the friction outer cylinder 20 through the water spray pipe 35. When the water flows downward, it exerts resistance on the friction frame 22 to slow down its rotation speed, and then the water flows back from the friction outer cylinder 20 to the water tank 32, so that the friction frame 22 and the friction outer cylinder 20 can be sprayed with water to cool them during the braking process, reducing the loss of the friction frame 22 and the friction outer cylinder 20. After the rotation speed of the high-speed shaft 15 slows down, the first spring 25 rebounds, so that the moving frame 24 is reset, and then the friction frame 22 is retracted inward.

[0040] like Figure 2 , Fig.11 and Fig.12 As shown, it also includes a braking mechanism 4, which includes a support seat 40, a driving assembly 41, a movable seat 42, an extrusion frame 43, a second spring 44 and a ball 45. The support seat 40 is connected to the inner side of the lower part of the cabin 1, and the support seat 40 is located in front of the friction outer cylinder 20. A driving assembly 41 is provided on the support seat 40, and the movable seat 42 is slidably connected to the upper side of the support seat 40. The driving assembly 41 includes a driving motor and a driving screw. The right side of the support seat 40 is connected to the driving motor, and the driving screw is connected to the output shaft of the driving motor. The driving screw is rotatably connected to the support seat 40, and the movable seat 42 is threadedly connected to the driving screw. The upper side of the movable seat 42 is slidably connected to the extrusion frame 43, and a second spring 44 is connected between the extrusion frame 43 and the movable seat 42. Five balls 45 are rotatably connected to the right side of the upper part of the extrusion frame 43, and the extrusion frame 43 is located on the left side of the movable frame 24 on the left side.

[0041] The braking mechanism 4 of the device can be used to brake the high-speed shaft 15. When the wind force is too strong and the speed of the high-speed shaft 15 cannot be slowed down, the driving motor in the driving assembly 41 is started to drive the driving screw to rotate, so that the moving seat 42 moves to the right, and the extrusion frame 43 moves to the right, so that the ball 45 squeezes the moving frame 24 on the left to move to the right, so that the friction frame 22 opens outward and continuously presses against the friction outer cylinder 20. The second spring 44 is used to buffer the extrusion frame 43 to avoid excessive extrusion force of the extrusion frame 43, thereby playing a role in braking the high-speed shaft 15 and ensuring the safety of wind power supply.

[0042] like Figure 2 and Fig.13 As shown, a pitch mechanism 5 is also included, and the pitch mechanism 5 includes a fixed block 50, a pitch motor 51, a worm 52 and a turbine 53. Multiple groups of fixed blocks 50 are connected inside the hub 11, and each group is composed of two fixed blocks 50. A pitch motor 51 is connected to one of the fixed blocks 50 in each group, and the worm 52 is rotatably connected between the fixed blocks 50 in the same group. The output shaft of the pitch motor 51 is connected to the adjacent worm 52, and the turbine 53 is connected to the side where the blades 12 are close to each other, and the turbine 53 is meshed with the adjacent worm 52.

[0043] By using the pitch mechanism 5 of the device, the wind-receiving area of ​​the blade 12 can be adjusted. When the wind is too strong, the pitch motor 51 is started to drive the worm 52 to rotate and engage with the turbine 53, so that the blade 12 rotates and the wind-receiving area of ​​the blade 12 is reduced, thereby playing the role of being able to adjust the wind-receiving area of ​​the blade 12 so as to slow down the rotation speed of the hub 11.

[0044] like Figure 1 , Figure 2 and Fig.14 As shown, a heat dissipation mechanism 6 is also included, and the heat dissipation mechanism 6 includes a heat conduction box 60 and heat sinks 61. The heat conduction box 60 is connected to the lower side of the middle of the cabin 1. The heat conduction box 60 is located at the lower side of the water tank 32. Nine heat sinks 61 are connected to the lower side of the heat conduction box 60.

[0045] By using the heat dissipation mechanism 6 of the present device, the cooling of the water in the water tank 32 can be accelerated. The heat on the water tank 32 is transferred to the heat conduction box 60. The heat sink 61 is used to accelerate the heat dissipation efficiency of the heat conduction box 60, thereby accelerating the cooling of the water in the water tank 32 and ensuring the cooling effect.

[0046] like Figure 1 , Figure 2 and Fig.14As shown, a prediction mechanism 7 is also included, and the prediction mechanism 7 includes a fixed seat 70 and a wind speed detector 71. The fixed seat 70 is connected to the upper right side of the cabin 1, and the wind speed detector 71 is installed on the upper side of the fixed seat 70. The wind speed detector 71 is electrically connected to the variable pitch motor 51, and the wind speed detector 71 is electrically connected to the drive motor in the drive assembly 41.

[0047] The prediction mechanism 7 of the device can detect the wind speed. The wind speed detector 71 detects the wind speed. When the wind speed is too fast, the variable pitch motor 51 and the drive motor in the drive assembly 41 are controlled to start, thereby timely slowing down the rotation speed of the hub 11 and the high-speed shaft 15 to avoid equipment damage.

[0048] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A wind power supply device with overspeed regulation, characterized by: The invention comprises a cabin (1), a wheel hub (11), blades (12), a low-speed shaft (13), a transmission assembly (14), a high-speed shaft (15), a generator (16), a speed reduction mechanism (2) and a retarding mechanism (3). The left side of the cabin (1) is rotatably connected to the wheel hub (11), a plurality of blades (12) are rotatably connected to the wheel hub (11), the left inner side of the wheel hub (11) is connected to the low-speed shaft (13), the lower right inner side of the cabin (1) is connected to the generator (16), the output shaft of the generator (16) is connected to the high-speed shaft (15), the cabin (1) is provided with a transmission assembly (14), a speed reduction mechanism (2) capable of reducing the rotation speed is provided between the cabin (1) and the high-speed shaft (15), and the speed reduction mechanism (2) is provided with a retarding mechanism (3) capable of further reducing the rotation speed and cooling the high-speed shaft (15).

2. A wind power supply device with overspeed regulation according to claim 1, characterized in that: A mounting hole is provided on the lower left side of the cabin (1).

3. A wind power supply device with overspeed regulation according to claim 1, characterized in that: The transmission assembly (14) comprises a connection box and gears. The connection box is connected to the inner side of the lower left part of the cabin (1). The upper and lower parts of the connection box are both rotatably connected to gears. The gears are meshed with each other. The low-speed shaft (13) is connected to the gear on the upper side, and the high-speed shaft (15) is connected to the gear on the lower side.

4. A wind power supply device with overspeed regulation according to claim 1, characterized in that: The speed reduction mechanism (2) comprises a friction outer cylinder (20), a mounting sleeve (21), a friction frame (22), a connecting frame (23), a moving frame (24) and a first spring (25). The friction outer cylinder (20) is connected to the inner side of the lower right part of the nacelle (1). The friction outer cylinder (20) is located on the left side of the generator (16). The high-speed shaft (15) passes through the friction outer cylinder (20). The middle part of the high-speed shaft (15) is connected to the mounting sleeve (21). The mounting sleeve (21) is located inside the friction outer cylinder (20). The mounting sleeve (21) is rotatably connected to the friction outer cylinder (20). A plurality of friction frames (22) are slidably connected to the mounting sleeve (21). The left and right sides of the friction frames (22) are rotatably connected to the connecting frames (23). The connecting frames (23) are all rotatably connected with the moving frames (24), the moving frames (24) are all slidably connected with the mounting sleeve (21), and a plurality of first springs (25) are connected between the moving frames (24) and the mounting sleeve (21). When the speed of the high-speed shaft (15) is too fast, the friction frame (22) opens outwards under the action of centrifugal force and contacts with the friction outer cylinder (20), so that when the friction frame (22) rotates, friction force is generated with the friction outer cylinder (20), slowing down the speed of the mounting sleeve (21), thereby slowing down the speed of the high-speed shaft (15). When the friction frame (22) opens outwards, it drives the connecting frame (23) to rotate and move, so that the moving frames (24) are close to each other, and the first springs (25) are squeezed and contracted.

5. A wind power supply device with overspeed regulation according to claim 4, characterized in that: The deceleration mechanism (3) comprises a first mounting ring (30), a permanent magnet (31), a water tank (32), a water pump (33), a second mounting ring (34) and a water spray pipe (35). The first mounting ring (30) is connected to the right side of the right moving frame (24). The first mounting ring (30) is connected to a plurality of permanent magnets (31). The lower inner side of the cabin (1) is connected to the water tank (32). The water tank (32) is located below the friction outer cylinder (20). The water tank (32) is connected to the friction outer cylinder (20). The upper side of the water tank (32) is connected to the water pump (33). The water inlet pipe of the water pump (33) is connected to the water tank (32). The rotating shaft of the water pump (33) is connected to the second mounting ring (34). The second mounting ring (34) is also connected to a plurality of permanent magnets (31). The magnet (31) and the water outlet of the water pump (33) are connected with a water spray pipe (35), and the water spray pipe (35) is connected with the friction outer cylinder (20). When the movable frames (24) approach each other, the first mounting ring (30) is driven to approach the second mounting ring (34), thereby making the permanent magnets (31) approach each other, so that when the first mounting ring (30) rotates, the second mounting ring (34) is driven to rotate, and the rotating shaft of the water pump (33) is driven to rotate, so that the water pump (33) draws water in the water tank (32) into the water spray pipe (35), and sprays the water into the friction outer cylinder (20) through the water spray pipe (35). When the water flows downward, it exerts resistance on the friction frame (22) to slow down its rotation speed, and then the water flows back from the friction outer cylinder (20) to the water tank (32).

6. A wind power supply device with overspeed regulation according to claim 5, characterized in that: The invention also comprises a braking mechanism (4), the braking mechanism (4) comprising a support seat (40), a driving assembly (41), a movable seat (42), an extrusion frame (43), a second spring (44) and a ball (45), the lower inner side of the cabin (1) is connected to the support seat (40), the support seat (40) is located in front of the friction outer cylinder (20), the driving assembly (41) is provided on the support seat (40), the upper side of the support seat (40) is slidably connected to the movable seat (42), the upper side of the movable seat (42) is slidably connected to the extrusion frame (43), the extrusion frame (43) and the movable seat (4 2), a second spring (44) is connected between the upper right side of the extrusion frame (43), a plurality of balls (45) are rotatably connected to the extrusion frame (43), the extrusion frame (43) is located at the left side of the mobile frame (24) on the left side, the driving assembly (41) is started, the mobile seat (42) moves rightward, the extrusion frame (43) moves rightward, the balls (45) squeeze the mobile frame (24) on the left side to move rightward, the friction frame (22) opens outward and continuously presses against the friction outer cylinder (20), the second spring (44) is used to buffer the extrusion frame (43) to prevent the extrusion frame (43) from squeezing too much.

7. A wind power supply device with overspeed regulation according to claim 6, characterized in that: The driving assembly (41) comprises a driving motor and a driving screw. The right side of the supporting seat (40) is connected to the driving motor. The output shaft of the driving motor is connected to the driving screw. The driving screw is rotatably connected to the supporting seat (40). The movable seat (42) is threadably connected to the driving screw.

8. The overspeed regulation wind power supply device according to claim 6, characterized in that: The invention also comprises a pitch mechanism (5), wherein the pitch mechanism (5) comprises a fixed block (50), a pitch motor (51), a worm (52) and a turbine (53). The hub (11) is internally connected with a plurality of groups of fixed blocks (50), each group being composed of two fixed blocks (50). A pitch motor (51) is connected to one of the fixed blocks (50) in each group. The fixed blocks (50) in the same group are rotatably connected with the worm (52). The output shaft of the pitch motor (51) is connected to the adjacent worm (52). The turbine (53) is connected to the side where the blades (12) are close to each other. The turbine (53) is meshed with the adjacent worm (52). When the pitch motor (51) is started, the worm (52) is driven to rotate and mesh with the turbine (53), so that the blades (12) rotate, thereby reducing the wind-receiving area of ​​the blades (12).

9. A wind power supply device with overspeed regulation according to claim 8, characterized in that: The invention also comprises a heat dissipation mechanism (6), the heat dissipation mechanism (6) comprising a heat conduction box (60) and a heat sink (61), the heat conduction box (60) is connected to the lower side of the middle part of the engine room (1), the heat conduction box (60) is located at the lower side of the water tank (32), a plurality of heat sinks (61) are connected to the lower side of the heat conduction box (60), the heat on the water tank (32) is transferred to the heat conduction box (60), and the heat sink (61) is used to accelerate the heat dissipation efficiency of the heat conduction box (60).

10. A wind power supply device with overspeed regulation according to claim 9, characterized in that: The invention also comprises a prediction mechanism (7), the prediction mechanism (7) comprising a fixing seat (70) and a wind speed detector (71), the fixing seat (70) being connected to the upper right side of the cabin (1), the wind speed detector (71) being installed on the upper side of the fixing seat (70), the wind speed detector (71) being electrically connected to the variable pitch motor (51), the wind speed detector (71) being electrically connected to the drive motor in the drive assembly (41), the wind speed detector (71) detecting the wind speed, and when the wind speed is too fast, controlling the variable pitch motor (51) and the drive motor in the drive assembly (41) to start.

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