Stable direction regulator for wind power generation

Abstract

The invention relates to the technical field of wind power generation equipment, in particular to a stable direction adjuster for wind power generation, which comprises a tower, a rotating seat is rotatably arranged at the top end of the tower, a cabin is mounted at the top end of the rotating seat, a direction adjusting mechanism is arranged on the surface of the rotating seat, and a supporting mechanism is arranged between the tower and the rotating seat. After the wind direction change is sensed through the wind direction sensor, the driving motor drives the rotating seat to rotate through gear transmission, the pulley and the sliding rail are matched to reduce friction, limit shaking and guarantee the cabin stability, when the rotating seat rotates, the sealing plate drives the piston plate to extrude the magnetorheological fluid, damping force is generated to enable rotation to be stable, and the equipment failure rate is reduced; the wind cup drives the rotating shaft to rotate to generate power, the magnetic field intensity of the excitation coil is changed, self-adaptive adjustment of damping force of magnetorheological fluid and wind power working conditions is achieved, the lubricating mechanism and the direction adjusting mechanism are linked, precise lubrication is achieved during direction adjusting, the damping mechanism is used for generating heat at low temperature to enable lubricating oil to recover fluidity, and stable operation of equipment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation equipment, and particularly to a stable aligner for wind power generation. Background Technique

[0002] As a clean and renewable energy source, wind energy is playing an increasingly important role in the global energy structure adjustment and environmental protection. Wind turbines convert wind energy into mechanical energy and then drive generators to generate electricity, which is the main form of wind energy utilization currently. In a wind power generation system, an aligner is one of the core components, and its function is to adjust the orientation of the nacelle and blades according to the wind direction change to ensure that the wind turbine always faces the wind at the best angle, thereby maximizing the wind energy capture efficiency.

[0003] However, in the existing equipment under strong winds or complex working conditions, the impact load borne by the alignment system increases, making the nacelle prone to shaking or vibration during rotation, which affects the accuracy and stability of alignment.

[0004] In view of this, research and improvement are carried out on the existing problems, and a stable aligner for wind power generation is provided, aiming to solve the problems and improve the practical value through this technology. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and a stable aligner for wind power generation is proposed. After the wind direction sensor senses the wind direction change in the present invention, the driving motor drives the rotating seat to rotate through gear transmission. The pulley and the sliding rail cooperate to reduce friction and limit shaking, ensuring the stability of the nacelle. When the rotating seat rotates, the sealing plate drives the piston plate to extrude the magnetorheological fluid, generating a damping force to make the rotation smooth, reducing the equipment failure rate. The wind cup drives the rotating shaft to rotate and generate electricity, changing the magnetic field intensity of the excitation coil, realizing the adaptive adjustment of the magnetorheological fluid damping force and the wind power working conditions. The lubrication mechanism is linked with the alignment mechanism, providing precise lubrication during alignment. At low temperatures, the damping mechanism generates heat to make the lubricating oil regain fluidity, ensuring the stable operation of the equipment.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A stable aligner for wind power generation, including a tower, a rotating seat is rotated at the top of the tower, a nacelle is installed at the top of the rotating seat, and an alignment mechanism is provided on the surface of the rotating seat;

[0007] A support mechanism is provided between the tower and the rotating seat. The support mechanism includes a fixed seat sleeved on the outer wall of the rotating seat, a fixed rod is welded on the outer wall of the fixed seat, a sliding rail is sleeved on the outer wall of the tower, and one end of the fixed rod is provided with a pulley sliding inside the sliding rail;

[0008] Below the support mechanism is provided with a damping mechanism. The damping mechanism includes an annular disc sleeved on the outer wall of the rotating seat. A sealing plate A slides inside the annular disc. A piston plate slides inside the annular disc. Between the bottom end of the fixed rod and the top end of the sealing plate A is provided a connecting rod. The inner cavity of the annular disc is filled with magnetorheological fluid. An installation groove is opened inside the annular disc, and an exciting coil is provided inside the installation groove;

[0009] At the top end of the nacelle is provided a power generation mechanism. The power generation mechanism includes a fixed ring installed at the top end of the nacelle. A rotating shaft penetrates and rotates inside the fixed ring. A magnetic block is sleeved on the outer wall of the rotating shaft inside the fixed ring. Inside the fixed ring is provided an electromagnetic coil that cooperates with the magnetic block;

[0010] A protective cover is sleeved on the outer wall of the rotating seat, and a lubrication mechanism is provided inside the protective cover.

[0011] Preferably: The output end of the nacelle is installed with a transmission shaft, and multiple groups of blades are installed on the outer wall of the transmission shaft.

[0012] Preferably: The steering mechanism includes a mounting seat welded on the outer wall of the rotating seat. A driving motor is installed at the top end of the mounting seat. The output end of the driving motor is installed with a gear. A gear ring meshing with the gear is sleeved on the outer wall of the top end of the tower. A wind direction sensor is installed at the top end of the nacelle. A cam rotates at the bottom end of the driving motor.

[0013] Preferably: Multiple groups of through holes are opened on the surface of the piston plate. The number of piston plates is the same as the number of slide rails, and the slide rails and the piston plates are on the same vertical horizontal line. The top end of the piston plate is fixedly connected to the bottom end of the sealing plate.

[0014] Preferably: The lubrication mechanism includes an oil tank installed inside the protective cover. A sealing plate B slides at the bottom end of the oil tank. Multiple groups of injection nozzles are communicated at the top end of the oil tank. A pushing component for oil injection is provided between the steering mechanism and the oil tank.

[0015] Preferably: The pushing component includes a sleeve installed at the top end of the oil tank. An air delivery pipe is communicated between the sleeve and the oil tank. A pressure rod slides inside the sleeve. A spring is sleeved on the outer wall of the pressure rod inside the sleeve. One end of the pressure rod is installed with a pressing plate.

[0016] Preferably: Multiple groups of heat conducting rods penetrate and are installed inside the sealing plate B, and the top ends of multiple groups of heat conducting rods extend into the inside of the oil tank. One ends of multiple groups of heat conducting rods are fixedly connected to the inner wall of the annular disc. The heat conducting rods are made of copper material.

[0017] Preferably: One end of the sleeve is installed with a one-way air suction valve, and a one-way air exhaust valve is installed at the connection of the air delivery pipe and the oil tank.

[0018] Preferably, a wind cup is installed at the top end of the rotating shaft, and a wire is electrically connected between the excitation coil and the electromagnetic coil.

[0019] Preferably, the driving motor is a forward and reverse motor, and the driving motor is signal-connected to the wind direction sensor.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. In the present invention, when the wind direction sensor senses a change in the wind direction, the driving motor is controlled to start. The driving motor drives the rotating seat to rotate around the tower through the meshing transmission of the gear and the gear ring. During this process, the fixed seat closely connected to the rotating seat also rotates accordingly. Since the fixed rod is welded to the outer wall of the fixed seat, the fixed rod will rotate together with the fixed seat. When the fixed rod rotates, the pulley will roll inside the slide rail. The rolling friction between the pulley and the slide rail is smaller than the sliding friction, making the rotation of the rotating seat smoother. At the same time, the rolling of the pulley in the slide rail can limit the shaking of the rotating seat in the horizontal direction, providing stable support for the rotating seat. Therefore, when the rotating seat adjusts its direction, it can maintain a stable posture and will not produce large offsets or shakes due to the action of the wind, thereby ensuring the stability of the nacelle installed at the top of the rotating seat during rotation.

[0022] 2. When the driving motor drives the rotating seat to rotate in the present invention, the fixed rod connected to the rotating seat also rotates accordingly. The bottom end of the fixed rod is connected to the top end of the sealing plate A through a connecting rod. Therefore, the rotation of the fixed rod will drive the sealing plate A to slide inside the annular disc, causing the sliding of the sealing plate A to drive the piston plate to squeeze the magnetorheological fluid filled in the inner cavity of the annular disc. Since multiple groups of through holes are provided on the surface of the piston plate, the magnetorheological fluid can flow through these through holes and generate a damping force during the flowing process. Thus, the damping force can make the rotation of the rotating seat smoother, avoiding the phenomenon of severe shaking or out-of-control of the rotating seat caused by sudden changes in the wind or the driving motor acting too quickly. At the same time, it reduces the damage of vibration and impact to each component of the equipment and can effectively reduce the failure rate of the equipment.

[0023] 3. In the present invention, the wind cup is driven by wind power to drive the rotation of the rotating shaft. The magnetic blocks on the outer wall of the rotating shaft rotate synchronously to cut the magnetic induction lines of the electromagnetic coils in the fixed circle, generating electric energy according to the principle of electromagnetic induction. The electromagnetic coils and the excitation coils are connected by wires, and the generated electric energy is transmitted to the excitation coils for power supply. When the wind force changes, the rotation speed of the rotating shaft driven by the wind cup changes, and the electric energy changes accordingly. When the wind force increases, the power generation of the electromagnetic coils increases, the magnetic field of the excitation coils strengthens, the damping force of the magnetorheological fluid increases, suppressing the vibration of the rotating seat in strong winds and ensuring accurate orientation. When the wind force decreases, the power generation decreases, the magnetic field of the excitation coils weakens, the viscosity of the magnetorheological fluid decreases, making the rotating seat rotate flexibly. Thus, the adaptive adjustment of the damping force and the wind force working conditions is realized, ensuring that the device can respond flexibly to the change of the wind direction, improving its environmental adaptability and reliability, and broadening the scope of application.

[0024] 4. The lubrication mechanism of the present invention is linked with the orientation mechanism. When the orientation mechanism works, the driving motor drives the cam to rotate, and the cam pushes the pressure rod to compress the air in the sleeve. The compressed air enters the oil sump through the air pipe, pressurizes the lubricating oil, so that the lubricating oil is accurately sprayed through the nozzle to the key parts where the gear and the gear ring mesh, forming a lubricating film, reducing friction, prolonging the service life of the components, reducing the maintenance cost, improving the operation efficiency of the device. In a low-temperature environment, the viscosity of the lubricating oil increases and it is difficult to spray normally. At this time, the damping mechanism in the annular disc works, and the heat generated by the magnetorheological fluid is conducted through the annular disc to the heat-conducting rod, and then transferred to the lubricating oil in the oil sump, heating up and reducing the viscosity of the lubricating oil, restoring its fluidity, ensuring that it can be normally sprayed and form an effective lubricating film, and ensuring that the device can operate stably under low-temperature working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the overall structural schematic diagram of the present invention;

[0026] Figure 2 is the structural schematic diagram of the support mechanism of the present invention;

[0027] Figure 3 is the partial structural schematic diagram inside the protective cover of the present invention;

[0028] Figure 4 is the structural schematic diagram of the damping mechanism and the power generation mechanism of the present invention;

[0029] Figure 5 is of the present invention Figure 4 the enlarged structural schematic diagram of part A;

[0030] Figure 6 is of the present invention Figure 4 the enlarged structural schematic diagram of part B;

[0031] Figure 7 is the sectional structural schematic diagram of the protective cover of the present invention;

[0032] Figure 8For the present invention Figure 7 Schematic enlarged view of part C in

[0033] Legend:

[0034] 1. Tower; 2. Rotating seat; 3. Cabin; 4. Transmission shaft; 5. Blade; 6. Yaw mechanism; 601. Mounting seat; 602. Driving motor; 603. Gear; 604. Ring gear; 605. Wind direction sensor; 606. Cam; 7. Support mechanism; 701. Fixed seat; 702. Fixed rod; 703. Slide rail; 704. Pulley; 8. Damping mechanism; 801. Annular disc; 802. Sealing plate A; 803. Piston plate; 804. Connecting rod; 805. Magnetorheological fluid; 806. Mounting groove; 807. Excitation coil; 9. Power generation mechanism; 901. Fixed ring; 902. Rotating shaft; 903. Magnet; 904. Electromagnetic coil; 905. Wind cup; 906. Wire; 10. Protective cover; 11. Lubrication mechanism; 1101. Oil sump; 1102. Sealing plate B; 1103. Heat conducting rod; 1104. Injector nozzle; 1105. Sleeve; 1106. Gas transmission pipe; 1107. Pressing rod; 1108. Spring; 1109. Pressing plate. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0036] Refer to Figures 1 to 8 As shown, the present invention provides a stable yawer for wind power generation, including a tower 1. A rotating seat 2 rotates at the top of the tower 1. A cabin 3 is installed at the top of the rotating seat 2. A yaw mechanism 6 is provided on the surface of the rotating seat 2;

[0037] A support mechanism 7 is provided between the tower 1 and the rotating seat 2. The support mechanism 7 includes a fixed seat 701 sleeved on the outer wall of the rotating seat 2. A fixed rod 702 is welded to the outer wall of the fixed seat 701. A slide rail 703 is sleeved on the outer wall of the tower 1. One end of the fixed rod 702 is provided with a pulley 704 sliding inside the slide rail 703;

[0038] It should be noted that when the wind direction changes, the wind direction sensor 605 senses the change in the wind direction and controls the driving motor 602 to start. The driving motor 602 drives the rotation of the rotating seat 2 around the tower 1 through the meshing transmission between the gear 603 and the gear ring 604. During this process, the fixed seat 701 closely connected to the rotating seat 2 also rotates accordingly. Since the fixed rod 702 is welded to the outer wall of the fixed seat 701, the fixed rod 702 will rotate together with the fixed seat 701. When the fixed rod 702 rotates, the pulley 704 will roll inside the slide rail 703. The rolling friction between the pulley 704 and the slide rail 703 is smaller than the sliding friction, making the rotation of the rotating seat 2 smoother. At the same time, the rolling of the pulley 704 in the slide rail 703 can limit the sway of the rotating seat 2 in the horizontal direction, providing a stable support for the rotating seat 2. As a result, when the rotating seat 2 adjusts its direction, it can maintain a stable posture and will not produce large offsets or sways due to the action of the wind, thereby ensuring the stability of the nacelle 3 installed at the top of the rotating seat 2 during the rotation process.

[0039] A damping mechanism 8 is provided below the support mechanism 7. The damping mechanism 8 includes an annular disk 801 sleeved on the outer wall of the rotating seat 2. A sealing plate A802 slides inside the annular disk 801, and a piston plate 803 slides inside the annular disk 801. A connecting rod 804 is provided between the bottom end of the fixed rod 702 and the top end of the sealing plate A802. The inner cavity of the annular disk 801 is filled with magnetorheological fluid 805, and an installation groove 806 is formed inside the annular disk 801. An exciting coil 807 is provided inside the installation groove 806;

[0040] It should be noted that when the wind direction changes and the driving motor 602 drives the rotation of the rotating seat 2, the fixed rod 702 connected to the rotating seat 2 will also rotate accordingly. The bottom end of the fixed rod 702 is connected to the top end of the sealing plate A802 through the connecting rod 804. Therefore, the rotation of the fixed rod 702 will drive the sealing plate A802 to slide inside the annular disk 801, causing the sliding of the sealing plate A802 to drive the piston plate 803 to squeeze the magnetorheological fluid 805 filled in the inner cavity of the annular disk 801. Since multiple groups of through holes are formed on the surface of the piston plate 803, the magnetorheological fluid 805 can flow through these through holes and generate a damping force during the flow process. Thus, the damping force can make the rotation of the rotating seat 2 more stable, avoiding the phenomenon that the rotating seat 2 shakes violently or gets out of control due to sudden changes in the wind force or the driving motor 602 acting too quickly. At the same time, it reduces the damage to each component of the equipment caused by vibration and impact, and can effectively reduce the failure rate of the equipment.

[0041] A power generation mechanism 9 is provided at the top of the nacelle 3. The power generation mechanism 9 includes a fixed ring 901 mounted at the top of the nacelle 3. A rotating shaft 902 is rotatably passed through the interior of the fixed ring 901. A magnetic block 903 is sleeved on the outer wall of the rotating shaft 902 located inside the fixed ring 901. An electromagnetic coil 904 is provided inside the fixed ring 901 to cooperate with the magnetic block 903.

[0042] It should be noted that under the action of wind, the wind cup 905 drives the rotating shaft 902 to rotate, and the magnetic block 903 mounted on the outer wall of the rotating shaft 902 rotates synchronously with the rotating shaft 902. Since an electromagnetic coil 904 is provided inside the fixed ring 901 to cooperate with the magnetic block 903, the rotation of the magnetic block 903 will cut the magnetic flux lines of the electromagnetic coil 904, and generate an induced electromotive force according to the principle of electromagnetic induction, thereby generating electrical energy, and the excitation coil 807 and the electromagnetic coil 904 are electrically connected through the wire 906. The current generated by the electromagnetic coil 904 is transmitted to the excitation coil 807 to power it. When the wind force changes, the wind cup 905 drives the rotating speed of the rotating shaft 902 to change, so that the generated electrical energy will also change accordingly. If the wind force increases, the electric energy generated by the electromagnetic coil 904 increases, and the electric energy transmitted to the excitation coil 807 also increases, causing the excitation coil 807 to generate a stronger magnetic field, thereby enhancing the damping force of the magnetorheological fluid 805, and better suppressing the violent vibration of the rotating seat 2 caused by strong winds, ensuring a smooth and accurate adjustment process; on the contrary, if the wind force decreases, the electric energy generated by the electromagnetic coil 904 decreases, the magnetic field strength of the excitation coil 807 decreases, the viscosity of the magnetorheological fluid 805 decreases, and the damping effect weakens, making the rotation of the rotating seat 2 more flexible and smooth, avoiding excessive damping that affects the normal rotation of the rotating seat 2, thereby realizing adaptive adjustment of the damping force and wind conditions, ensuring that the equipment flexibly responds to changes in wind direction, expanding the scope of application of the equipment, and improving the environmental adaptability and reliability of wind power generation equipment.

[0043] A protective cover 10 is provided on the outer wall of the rotating seat 2 , and a lubricating mechanism 11 is provided inside the protective cover 10 .

[0044] As described above, through the joint action of the support mechanism 7 and the damping mechanism 8, the magnetorheological fluid 805 is used to damp and buffer the fixed rod 702, thereby suppressing the shaking and vibration of the adjustment mechanism 6 during the adjustment process, and improving the impact resistance of the equipment; through the power generation mechanism 9 and the damping mechanism 8, a closed-loop feedback is formed, and the damping force is automatically adjusted according to the wind force, taking into account stability in strong winds and flexibility in light winds; through the linkage of the lubrication mechanism 11 with the adjustment mechanism 6, and combined with the utilization of waste heat in the damping mechanism 8, it is ensured that the lubrication mechanism 11 works effectively under different working conditions, reducing maintenance costs and extending the life of the equipment.

[0045] See Figures 1 to 2 As shown, a transmission shaft 4 is installed at the output end of the nacelle 3 , and multiple groups of blades 5 are installed on the outer wall of the transmission shaft 4 .

[0046] Refer to Figure 3 As shown, the steering mechanism 6 includes a mounting seat 601 welded to the outer wall of the rotating seat 2. A driving motor 602 is installed at the top of the mounting seat 601. A gear 603 is installed at the output end of the driving motor 602. A gear ring 604 engaged with the gear 603 is sleeved on the outer wall of the top of the tower 1. A wind direction sensor 605 is installed at the top of the nacelle 3. A cam 606 rotates at the bottom of the driving motor 602.

[0047] It should be noted that when the wind direction changes, the wind direction sensor 605 senses the wind direction, judges the deviation between the wind direction and the direction of the blade 5, and then controls the rotation of the driving motor 602, so that the output end of the driving motor 602 drives the gear 603 to rotate. Since the gear 603 is in meshing with the gear ring 604 sleeved on the outer wall of the top of the tower 1, the rotation of the gear 603 will make it move in a circular motion along the surface of the gear ring 604. And the gear 603 is connected to the rotating seat 2, so during the movement of the gear 603, it will drive the rotating seat 2 to rotate synchronously around the tower 1. The rotation of the rotating seat 2 will further drive the nacelle 3 installed at its top, the transmission shaft 4 installed at the output end of the nacelle 3 and the blade 5 to rotate together until the blade 5 is adjusted to the best position facing the wind, realizing a rapid response and precise adjustment to the wind direction change, thereby improving the efficiency of wind power generation and increasing the power generation.

[0048] Refer to Figures 4 to 5 As shown, a plurality of groups of through holes are formed on the surface of the piston plate 803. The number of piston plates 803 is the same as the number of slide rails 703, and the slide rails 703 and the piston plates 803 are on the same vertical horizontal line. The top of the piston plate 803 is fixedly connected to the bottom of the sealing plate 802.

[0049] Refer to Figures 7 to 8 As shown, the lubrication mechanism 11 includes an oil tank 1101 installed inside the protective cover 10. A sealing plate B 1102 slides at the bottom of the oil tank 1101. A plurality of spray nozzles 1104 communicate with the top of the oil tank 1101. A spray pushing component is provided between the steering mechanism 6 and the oil tank 1101.

[0050] Refer to Figures 7 to 8 As shown, the pushing component includes a sleeve tube 1105 installed at the top of the oil tank 1101. An air delivery pipe 1106 communicates between the sleeve tube 1105 and the oil tank 1101. A pressure rod 1107 slides inside the sleeve tube 1105. A spring 1108 is sleeved on the outer wall of the pressure rod 1107 located inside the sleeve tube 1105. A pressing plate 1109 is installed at one end of the pressure rod 1107.

[0051] Refer to Figures 7 to 8As shown, multiple heat conduction rods 1103 are installed through the inside of the sealing plate B1102, and the tops of the multiple heat conduction rods 1103 extend into the inside of the oil sump 1101. One ends of the multiple heat conduction rods 1103 are fixedly connected to the inner wall of the annular disc 801. The heat conduction rods 1103 are made of copper material.

[0052] Refer to Figure 8 As shown, a one-way suction valve is installed at one end of the sleeve 1105, and a one-way exhaust valve is installed at the connection between the air delivery pipe 1106 and the oil sump 1101.

[0053] It should be noted that when the steering mechanism 6 works, the cam 606 rotating at the bottom end of the driving motor 602 will rotate along with the rotation of the driving motor 602. During the rotation of the cam 606, its contour will periodically contact the pressing plate 1109 and push the pressing rod 1107. When the cam 606 pushes the pressing rod 1107, the pressing rod 1107 slides in the sleeve 1105 against the elastic force of the spring 1108. At this time, the air in the sleeve 1105 is compressed. Since the one-way suction valve at one end of the sleeve 1105 is closed, the compressed air can only enter the oil sump 1101 through the air delivery pipe 1106. The one-way exhaust valve at the connection between the air delivery pipe 1106 and the oil sump 1101 is opened. After the compressed air enters the oil sump 1101, it will generate pressure on the lubricating oil in the oil sump 1101, so as to spray the lubricating oil through the nozzle 1104 by using the compressed air, so that the lubricating oil can be accurately sprayed to the lubrication-required parts at the meshing position of the gear 603 and the gear ring 604, forming a lubricating film, thereby reducing the friction between components, extending the service life of components, reducing the overall maintenance cost and downtime of the equipment, and improving the operation efficiency of the equipment. When the cam 606 is disengaged from the pressing rod 1107, the elastic force of the spring 1108 will push the pressing rod 1107 to reset, and a negative pressure is formed in the sleeve 1105. At this time, the one-way suction valve is opened, and the outside air enters the sleeve 1105, preparing for the next time the cam 606 pushes the pressing rod 1107 to compress the air.

[0054] In addition, in a low-temperature environment, the viscosity of the lubricating oil will increase due to the temperature reduction, and its fluidity will decrease significantly, making it difficult to spray normally and form an effective lubricating film. At this time, when the damping mechanism 8 inside the annular disc 801 works, the magnetorheological fluid 805 generates heat under the extrusion of the piston plate 803 and the magnetic field. These heats are conducted to the heat conduction rods 1103 through the annular disc 801, so that the heat conduction rods 1103 can quickly transfer the heat of the annular disc 801 to the lubricating oil in the oil sump 1101. After the lubricating oil absorbs the heat, its temperature gradually rises, its viscosity decreases accordingly, and its fluidity is improved, so as to ensure that the lubricating oil can be sprayed normally and form a complete and uniform lubricating film on the surface of the rotating components, ensuring the normal operation of the equipment.

[0055] Refer to Figure 4 and Figure 6As shown, a wind cup 905 is installed at the top of a rotating shaft 902, and a wire 906 is electrically connected between an exciting coil 807 and an electromagnetic coil 904.

[0056] Refer to Figure 3 As shown, a driving motor 602 is a forward and reverse motor, and the driving motor 602 is signal-connected to a wind direction sensor 605.

[0057] Working principle: When the wind direction changes, the wind direction sensor 605 senses the wind direction, judges the deviation between the wind direction and the direction of the blade 5, and then controls the rotation of the driving motor 602, so that the output end of the driving motor 602 drives the gear 603 to rotate. Since the gear 603 is in meshing with a gear ring 604 sleeved on the outer wall of the top of the tower 1, the rotation of the gear 603 will make it perform a circular motion along the surface of the gear ring 604. And the gear 603 is connected to the rotating seat 2, so during the movement of the gear 603, it will drive the rotating seat 2 to rotate synchronously around the tower 1. The rotation of the rotating seat 2 will further drive the nacelle 3 installed at its top, the transmission shaft 4 installed at the output end of the nacelle 3, and the blade 5 to rotate together until the blade 5 is adjusted to the best position facing the wind, realizing a rapid response and precise adjustment to the wind direction change, thereby improving the efficiency of wind power generation and increasing the power generation;

[0058] When the wind direction changes, the wind direction sensor 605 senses the change in the wind direction and controls the driving motor 602 to start. The driving motor 602 drives the rotating seat 2 to rotate around the tower 1 through the meshing transmission of the gear 603 and the gear ring 604. During this process, a fixed seat 701 closely connected to the rotating seat 2 also rotates accordingly. Since the fixed rod 702 is welded to the outer wall of the fixed seat 701, the fixed rod 702 will rotate together with the fixed seat 701. When the fixed rod 702 rotates, the pulley 704 will roll inside the slide rail 703. The rolling friction between the pulley 704 and the slide rail 703 is smaller than the sliding friction, making the rotation of the rotating seat 2 smoother. At the same time, the rolling of the pulley 704 in the slide rail 703 can limit the sway of the rotating seat 2 in the horizontal direction, providing a stable support for the rotating seat 2, so that when the rotating seat 2 adjusts its direction, it can maintain a stable posture and will not produce large offsets or sways due to the action of the wind, thereby ensuring the stability of the nacelle 3 installed at the top of the rotating seat 2 during rotation;

[0059] When the driving motor 602 drives the rotating seat 2 to rotate, the fixed rod 702 connected to the rotating seat 2 will also rotate accordingly. The bottom end of the fixed rod 702 is connected to the top end of the sealing plate A802 through the connecting rod 804. Therefore, the rotation of the fixed rod 702 will drive the sealing plate A802 to slide inside the annular disc 801, causing the sliding of the sealing plate A802 to drive the piston plate 803 to squeeze the magnetorheological fluid 805 filled in the inner cavity of the annular disc 801. Since multiple groups of through holes are provided on the surface of the piston plate 803, the magnetorheological fluid 805 can flow through these through holes and generate a damping force during the flow process. Thus, the damping force can make the rotation of the rotating seat 2 more stable, avoiding the phenomenon that the rotating seat 2 shakes violently or gets out of control due to sudden changes in wind force or the driving motor 602 acting too quickly. At the same time, it reduces the damage of vibration and impact to each component of the equipment, and can effectively reduce the failure rate of the equipment;

[0060] In addition, under the action of wind force, the wind cup 905 drives the rotating shaft 902 to rotate, and the magnetic block 903 sleeved on the outer wall of the rotating shaft 902 rotates synchronously with the rotating shaft 902. Since the electromagnetic coil 904 matched with the magnetic block 903 is provided inside the fixed ring 901, the rotation of the magnetic block 903 will cut the magnetic induction lines of the electromagnetic coil 904, generating an induced electromotive force according to the electromagnetic induction principle, and then generating electric energy. And the excitation coil 807 and the electromagnetic coil 904 are electrically connected through the wire 906, and the current generated by the electromagnetic coil 904 is transmitted to the excitation coil 807 to supply power to it. When the wind force changes, the rotation speed of the rotating shaft 902 driven by the wind cup 905 changes, so that the generated electric energy will also change accordingly. If the wind force increases, the electric energy generated by the electromagnetic coil 904 increases, and the electric energy transmitted to the excitation coil 807 also increases, making the excitation coil 807 generate a stronger magnetic field, enhancing the damping force of the magnetorheological fluid 805, and better suppressing the violent vibration of the rotating seat 2 caused by strong wind, ensuring the smooth and accurate orientation process; conversely, if the wind force decreases, the electric energy generated by the electromagnetic coil 904 decreases, the magnetic field intensity of the excitation coil 807 decreases, the viscosity of the magnetorheological fluid 805 decreases, and the damping effect weakens, making the rotation of the rotating seat 2 more flexible and smooth, avoiding excessive damping from affecting the normal rotation of the rotating seat 2. Thus, the adaptive adjustment of the damping force and the wind force condition is realized, ensuring that the equipment can respond flexibly to changes in wind direction, expanding the applicable range of the equipment, and improving the environmental adaptability and reliability of the wind power generation equipment;

[0061] When the steering mechanism 6 is working, the cam 606 that rotates at the bottom of the drive motor 602 will rotate along with the rotation of the drive motor 602. During the rotation of the cam 606, its contour will periodically contact the pressure plate 1109 and push the pressure rod 1107. When the cam 606 pushes the pressure rod 1107, the pressure rod 1107 slides in the sleeve 1105 against the elastic force of the spring 1108. At this time, the air in the sleeve 1105 is compressed. Since the one-way suction valve at one end of the sleeve 1105 is closed, the compressed air can only enter the oil sump 1101 through the air delivery pipe 1106. The one-way exhaust valve at the connection between the air delivery pipe 1106 and the oil sump 1101 is opened. After the compressed air enters the oil sump 1101, it will generate pressure on the lubricating oil in the oil sump 1101, so that the lubricating oil can be sprayed out through the nozzle 1104 by using the compressed air, enabling the lubricating oil to be accurately sprayed onto the lubrication-required parts at the meshing position of the gear 603 and the gear ring 604, forming a lubricating film, thereby reducing the friction between components, extending the service life of components, reducing the overall maintenance cost and downtime of the equipment, and improving the operation efficiency of the equipment. When the cam 606 disengages from the pressure rod 1107, the elastic force of the spring 1108 will push the pressure rod 1107 to reset, creating a negative pressure in the sleeve 1105. At this time, the one-way suction valve opens, and the outside air enters the sleeve 1105 to prepare for the next air compression when the cam 606 pushes the pressure rod 1107;

[0062] In addition, in a low-temperature environment, the viscosity of the lubricating oil increases due to the temperature drop, and its fluidity significantly decreases, making it difficult to spray normally and form an effective lubricating film. At this time, when the internal damping mechanism 8 in the annular disk 801 is working, the magnetorheological fluid 805 generates heat under the extrusion of the piston plate 803 and the magnetic field action. These heats are conducted to the heat conducting rod 1103 through the annular disk 801, enabling the heat conducting rod 1103 to quickly transfer the heat of the annular disk 801 to the lubricating oil in the oil sump 1101. After the lubricating oil absorbs the heat, its temperature gradually rises, its viscosity decreases accordingly, and its fluidity is improved, thus ensuring that the lubricating oil can be sprayed normally and form a complete and uniform lubricating film on the surface of the rotating components, guaranteeing the normal operation of the equipment.

[0063] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stable direction adjuster for wind power generation, comprising a tower (1), characterized in that: A rotating seat (2) rotates at the top of the tower (1), and a nacelle (3) is installed at the top of the rotating seat (2). A steering mechanism (6) is provided on the surface of the rotating seat (2); A support mechanism (7) is provided between the tower (1) and the rotating seat (2). The support mechanism (7) includes a fixed seat (701) sleeved on the outer wall of the rotating seat (2). A fixed rod (702) is welded to the outer wall of the fixed seat (701). A slide rail (703) is sleeved on the outer wall of the tower (1). One end of the fixed rod (702) is provided with a pulley (704) sliding inside the slide rail (703); A damping mechanism (8) is provided below the support mechanism (7). The damping mechanism (8) includes an annular disc (801) sleeved on the outer wall of the rotating seat (2). A sealing plate A (802) slides inside the annular disc (801). A piston plate (803) slides inside the annular disc (801). A connecting rod (804) is provided between the bottom end of the fixed rod (702) and the top end of the sealing plate A (802). The inner cavity of the annular disc (801) is filled with magnetorheological fluid (805). An installation groove (806) is formed inside the annular disc (801), and an excitation coil (807) is provided inside the installation groove (806); A power generation mechanism (9) is provided at the top of the nacelle (3). The power generation mechanism (9) includes a fixed ring (901) installed at the top of the nacelle (3). A rotating shaft (902) penetrates and rotates inside the fixed ring (901). A magnetic block (903) is sleeved on the outer wall of the rotating shaft (902) inside the fixed ring (901). An electromagnetic coil (904) cooperating with the magnetic block (903) is provided inside the fixed ring (901); A protective cover (10) is sleeved on the outer wall of the rotating seat (2), and a lubricating mechanism (11) is provided inside the protective cover (10).

2. The stable direction adjuster for wind power generation according to claim 1, characterized in that: The output end of the nacelle (3) is provided with a transmission shaft (4), and multiple groups of blades (5) are installed on the outer wall of the transmission shaft (4).

3. The stable direction adjuster for wind power generation according to claim 1, wherein: The steering mechanism (6) includes a mounting seat (601) welded to the outer wall of the rotating seat (2). A driving motor (602) is installed at the top of the mounting seat (601). The output end of the driving motor (602) is provided with a gear (603). A toothed ring (604) meshing with the gear (603) is sleeved on the outer wall of the top end of the tower (1). A wind direction sensor (605) is installed at the top of the nacelle (3). A cam (606) rotates at the bottom end of the driving motor (602).

4. A stable aligner for wind power generation according to claim 1, characterized in that: Multiple groups of through holes are formed on the surface of the piston plate (803). The number of the piston plates (803) is the same as that of the slide rails (703), and the slide rails (703) and the piston plates (803) are on the same vertical horizontal line. The top end of the piston plate (803) is fixedly connected to the bottom end of the sealing plate (802).

5. A stable direction adjuster for wind power generation according to claim 1, characterized in that: The lubrication mechanism (11) includes an oil sump (1101) installed inside the protective cover (10). A sealing plate B (1102) slides at the bottom end of the oil sump (1101). Multiple groups of oil spray nozzles (1104) communicate with the top end of the oil sump (1101). A pushing component for oil spraying is provided between the orientation adjustment mechanism (6) and the oil sump (1101).

6. The stable type direction adjuster for wind power generation according to claim 5, characterized in that: The pushing component includes a sleeve (1105) installed at the top end of the oil sump (1101). An air delivery pipe (1106) communicates between the sleeve (1105) and the oil sump (1101). A pressure rod (1107) slides inside the sleeve (1105). A spring (1108) is sleeved on the outer wall of the pressure rod (1107) located inside the sleeve (1105). One end of the pressure rod (1107) is provided with a pressing plate (1109).

7. The stable aligner for wind power generation according to claim 5, wherein: Multiple groups of heat conducting rods (1103) are installed through the sealing plate B (1102), and the top ends of the multiple groups of heat conducting rods (1103) extend into the oil sump (1101). One ends of the multiple groups of heat conducting rods (1103) are fixedly connected to the inner wall of the annular disc (801). The heat conducting rods (1103) are made of copper material.

8. The stable direction adjuster for wind power generation according to claim 6, wherein: One end of the sleeve (1105) is provided with a one-way suction valve, and a one-way exhaust valve is installed at the connection between the air delivery pipe (1106) and the oil sump (1101).

9. The stable direction adjuster for wind power generation according to claim 1, characterized in that: A wind cup (905) is installed at the top end of the rotating shaft (902). A wire (906) is electrically connected between the excitation coil (807) and the electromagnetic coil (904).

10. The stable direction adjuster for wind power generation according to claim 3, characterized in that: The drive motor (602) is a reversible motor, and the drive motor (602) is in signal connection with the wind direction sensor (605).

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