Adjusting device for yaw return based on wind turbine generator
By combining the drive of the active gear disk and the driven gear, along with the design of the limit block and the screw, the problem of high energy consumption in the yaw return device of the wind turbine is solved, achieving efficient energy utilization and convenient maintenance, thus improving practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-03-17
AI Technical Summary
Existing wind turbine yaw correction devices use multiple motors to control gear rotation, which increases overall energy consumption and reduces energy efficiency.
The combination of a drive gear and a driven gear, with the driven gear driven by a DC motor, combined with a limit block and screw design, enables the angle adjustment and easy disassembly of the connecting cylinder, reducing energy consumption and facilitating maintenance.
It reduces overall energy consumption, improves energy efficiency, and facilitates the repair and maintenance of the equipment.
Smart Images
Figure CN224002842U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind turbine technology, specifically to an adjustment device for yaw correction of a wind turbine. Background Technology
[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. The yaw adjustment device of a wind turbine is mainly used to control the yaw system of the wind turbine, ensuring that the rotor is always aligned with the wind direction to maximize wind energy capture. This device senses changes in wind direction and drives the yaw mechanism to make corresponding adjustments, enabling the wind turbine to operate stably and efficiently.
[0003] Referring to the patent application CN216518392U, which discloses a wind turbine yaw correction device, this utility model uses a swing arm and an angle sensor. The wind vane drives the swing arm to rotate via a rotating shaft. The swing arm then moves away from the middle sensing area of the angle sensor and contacts one end of the sensing area of the angle sensor. This causes the power controller to start the motor, which in turn drives the gear to rotate. The gear, through its meshing with the gear ring, causes the nacelle to rotate relative to the support column. The direction of rotation is the same as the direction of rotation of the rotating shaft driven by the wind vane. Thus, the orientation of the wind turbine can gradually align with the direction indicated by the wind vane.
[0004] However, the above-mentioned technology uses multiple motors to drive gears to control the rotation of the machine compartment. This method of using multiple motors to control gears increases overall energy consumption, reduces energy efficiency, and has limited practicality. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a yaw and return adjustment device for wind turbine generators. This solves the problem that existing yaw and return adjustment devices for wind turbine generators increase overall energy consumption and reduce energy utilization efficiency by controlling gear rotation through multiple motors, resulting in limited practicality.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a yaw correction device for wind turbine generators, comprising a mounting base, wherein a connecting cylinder is movably mounted on the top surface of the mounting base, and further comprising:
[0007] The detection mechanism is located on the outside of the connecting cylinder to monitor wind direction;
[0008] An adjustment mechanism is provided on the top surface of the mounting base for adjusting the rotation angle of the mounting base. The adjustment mechanism includes a fixed cylinder fixedly mounted on the top surface of the mounting base. Several mounting grooves are formed on the bottom surface of the outer side of the fixed cylinder. Two driven gears for driving the connecting cylinder to rotate are movably mounted inside each of the mounting grooves. Several tooth blocks are fixedly mounted on the inner side of the connecting cylinder. A drive assembly is provided on the top surface of the mounting base for driving the two driven gears to rotate. A limit assembly is provided inside the fixed cylinder to limit the position of the connecting cylinder and facilitate the disassembly of the connecting cylinder for maintenance.
[0009] Preferably, the outer sides of the two driven gears mesh with the outer sides of a plurality of tooth blocks, and one side of the plurality of mounting grooves penetrates the outer side of the fixed cylinder and extends to the inner side of the fixed cylinder.
[0010] Preferably, the drive assembly includes a drive gear disk movably mounted on the top surface of the mounting base for driving two driven gears to rotate. A DC motor is fixedly mounted on the top surface of the inner cavity of the mounting base. The outer side of the drive gear disk meshes with the outer side of the two driven gears. The output end of the DC motor movably passes through the interior of the mounting base and is fixedly mounted on the bottom surface of the drive gear disk.
[0011] Preferably, the limiting component includes movable grooves on the left and right sides of the top surface inside the fixed cylinder. A connecting plate is movably installed inside the movable groove. Limiting blocks for limiting the rotation trajectory of the connecting cylinder are fixedly installed at both ends of the connecting plate near the connecting cylinder. An annular groove is formed on the top surface inside the connecting cylinder. A base plate is fixedly installed on the bottom surface inside the fixed cylinder. A screw for driving the connecting plate to move is movably installed inside the movable groove. A dual-axis motor for driving the screw to rotate is fixedly installed on the top surface of the base plate.
[0012] Preferably, one side of the limiting block movably penetrates the interior of the movable groove and extends into the interior of the annular groove, the opposite ends of the screw movably penetrate the interior of the movable groove and are fixedly installed at the output end of the dual-axis motor, and the end of the screw away from the dual-axis motor is threaded through one side of the connecting plate and movably penetrates the inner side of the movable groove.
[0013] Preferably, the detection mechanism includes a housing movably mounted on the outside of the connecting cylinder, a fan blade for connecting a wind turbine is movably mounted on the left side of the housing, a main shaft for connecting a power generation device is movably mounted inside the housing, a wind direction sensing component for monitoring wind direction is provided on the top surface of the housing, and the left end of the main shaft movably penetrates the inside of the housing and is fixedly mounted on the right side of the rotating head.
[0014] This invention provides a yaw correction device for wind turbine generators. Compared with existing technologies, it has the following advantages:
[0015] 1. This yaw and return adjustment device for wind turbines uses a set active gear disk and driven gear to adjust the rotation angle of the connecting cylinder to adapt to the wind direction. When in use, the DC motor is started to drive the DC motor to rotate, which in turn drives the driven gear to rotate. Then, the driven gear drives the connecting cylinder to rotate through the tooth block to adjust the rotation angle of the detection mechanism. After adjusting to the appropriate position, the DC motor is turned off to fix the position of the connecting cylinder, which reduces the overall energy consumption, improves energy utilization efficiency, and has good practicality.
[0016] 2. This wind turbine yaw return adjustment device facilitates the disassembly and maintenance of the connecting cylinder through the setting of limit blocks and screws. When in use, the dual-shaft motor is started to drive the screw to rotate. Then the screw will drive the connecting plate to pull the limit block out of the annular groove. Then the connecting cylinder can be removed and the detection mechanism can be disassembled for maintenance. It is convenient, quick and practical. Attached Figure Description
[0017] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model;
[0018] Figure 2 This is a front cross-sectional perspective view of the present invention.
[0019] Figure 3 This is a front cross-sectional perspective view of the adjustment mechanism of this utility model.
[0020] Figure 4 This is a top view cross-sectional perspective of the adjustment mechanism of this utility model.
[0021] In the diagram: 1-Mounting base, 2-Detection mechanism, 21-Rotating head, 22-Main shaft, 23-Wind direction sensor component, 24-Housing, 3-Adjustment mechanism, 31-DC motor, 32-Drive gear disk, 33-Gear block, 34-Annular groove, 35-Limit block, 36-Moving groove, 37-Connecting plate, 38-Screw, 39-Fixed cylinder, 310-Base plate, 311-Dual-axis motor, 312-Mounting groove, 313-Driven gear, 4-Connecting cylinder. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] See Figures 1-4 This utility model provides two technical solutions:
[0024] First implementation: A yaw correction device for wind turbine generators, including a mounting base 1, a connecting cylinder 4 movably mounted on the top surface of the mounting base 1, and further comprising:
[0025] The detection mechanism 2 is located on the outside of the connecting cylinder 4 to monitor the wind direction;
[0026] An adjustment mechanism 3, located on the top surface of the mounting base 1, is used to adjust the rotation angle of the mounting base 1. The adjustment mechanism 3 includes a fixed cylinder 39 fixedly mounted on the top surface of the mounting base 1. Several mounting grooves 312 are evenly distributed circumferentially on the bottom surface of the outer side of the fixed cylinder 39. Two driven gears 313 are movably mounted inside each of the mounting grooves 312 to drive the connecting cylinder 4 to rotate. Several toothed blocks 33 are fixedly mounted on the inner side of the connecting cylinder 4, and are evenly distributed circumferentially on the inner side of the connecting cylinder 4. A drive assembly is provided on the top surface of the mounting base 1 to drive the two driven gears 313 to rotate. A limit assembly is provided inside the fixed cylinder 39 to limit the position of the connecting cylinder 4 and facilitate the disassembly of the connecting cylinder 4. For ease of maintenance, the outer sides of the two driven gears 313 mesh with the outer sides of several tooth blocks 33. One side of several mounting slots 312 penetrates the outer side of the fixed cylinder 39 and extends to the inner side of the fixed cylinder 39. The drive assembly includes an active gear disk 32 movably mounted on the top surface of the mounting base 1 to drive the two driven gears 313 to rotate. A DC motor 31 is fixedly mounted on the top surface of the inner cavity of the mounting base 1. The outer side of the active gear disk 32 meshes with the outer side of the two driven gears 313. The output end of the DC motor 31 movably penetrates the interior of the mounting base 1 and is fixedly mounted on the bottom surface of the active gear disk 32. Rotating the DC motor 31 can drive the active gear disk 32 to rotate, causing the two driven gears 313 to rotate. Then, the two driven gears 313 will cause the connecting cylinder 4 to rotate through several tooth blocks 33.
[0027] The rotation angle of the connecting cylinder 4 can be adjusted to adapt to the wind direction by setting the active gear disk 32 and the driven gear 313. When in use, the DC motor 31 is started to drive the DC motor 31 to rotate, which in turn causes the driven gear 313 to rotate. Then, the driven gear 313 will drive the connecting cylinder 4 to rotate through the tooth block 33 to adjust the rotation angle of the detection mechanism 2. After adjusting to the appropriate position, the DC motor 31 is turned off to fix the position of the connecting cylinder 4, which reduces the overall energy consumption, improves energy utilization efficiency, and has good practicality.
[0028] The second embodiment differs from the first embodiment in that: the limiting component includes movable grooves 36 on the left and right sides of the top surface inside the fixed cylinder 39. A connecting plate 37 is movably installed inside the movable grooves 36. Limiting blocks 35 for limiting the rotation trajectory of the connecting cylinder 4 are fixedly installed at both ends of the connecting plate 37 near the connecting cylinder 4. An annular groove 34 is formed on the top surface inside the connecting cylinder 4. A base plate 310 is fixedly installed on the bottom surface inside the fixed cylinder 39. A screw 38 for moving the connecting plate 37 is movably installed inside the movable grooves 36. A dual-axis motor 311 for driving the screw 38 to rotate is fixedly installed on the top surface of the base plate 310. One side of the limiting block 35 movably penetrates the interior of the movable groove 36 and extends into the interior of the annular groove 34. The opposite ends of the screw 38 movably penetrate the interior of the movable groove 36 and are fixedly installed at the output end of the dual-axis motor 311. The end of the screw 38 away from the dual-axis motor 311... The thread passes through one side of the connecting plate 37 and moves through the inner side of the movable groove 36. When the dual-axis motor 311 is started, it can drive the screw 38 to rotate, causing the connecting plate 37 to move. Then, the connecting plate 37 will drive the limit block 35 to insert into the inside of the annular groove 34 to limit the rotation trajectory of the connecting cylinder 4. The detection mechanism 2 includes a housing 24 movably installed on the outside of the connecting cylinder 4. The left side of the housing 24 is movably installed with a fan blade for connecting the wind turbine. The inside of the housing 24 is movably installed with a main shaft 22 for connecting the power generation equipment. The top surface of the housing 24 is provided with a wind direction sensing component 23 for monitoring wind direction. The wind direction sensing component 23 is an existing device for monitoring wind direction, which will not be described in detail here. The left end of the main shaft 22 moves through the inside of the housing 24 and is fixedly installed on the right side of the rotating head 21. The main shaft 22 can be connected to the power generation equipment of the wind turbine. When the rotating head 21 rotates, it drives the main shaft 22 to rotate and generate electricity through the power generation equipment.
[0029] The limiting block 35 and screw 38 facilitate the disassembly and maintenance of the connecting cylinder 4. When in use, the dual-axis motor 311 is started to drive the screw 38 to rotate. Then the screw 38 will drive the connecting plate 37 to pull the limiting block 35 out of the annular groove 34. Then the connecting cylinder 4 can be removed and the detection mechanism 2 can be disassembled for maintenance. It is convenient, quick and practical.
[0030] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.
[0031] In use, the user installs the device in a suitable position, mounts the fan blades on the outside of the rotating head 21, and connects the main shaft 22 to the power generation equipment. The fan blades then drive the rotating head 21, causing the main shaft 22 to rotate and generate electricity through the power generation equipment. The wind direction sensor 23 detects the wind direction; when the wind direction changes, it activates the DC motor 31, causing it to rotate and rotating the driven gear 313. The driven gear 313 then drives the connecting cylinder 4 to rotate via the gear block 33, adjusting the rotation angle of the detection mechanism 2. After adjusting to the appropriate position, the DC motor 31 is turned off, thus fixing the connecting cylinder 4 in place. Positioning allows for continued wind power generation. When maintenance is required on the testing mechanism 2, the dual-shaft motor 311 is started to rotate the screw 38. The screw 38 then drives the connecting plate 37 to pull the limiting block 35 out of the annular groove 34. The connecting cylinder 4 can then be removed to disassemble the testing mechanism 2 for maintenance. After maintenance, the connecting cylinder 4 is placed on the top surface of the mounting base 1 so that the toothed block 33 meshes with the outer side of the driven gear 313. Then, the dual-shaft motor 311 is started to rotate the screw 38 in the opposite direction, causing the connecting plate 37 to insert the limiting block 35 into the annular groove 34, allowing for continued use.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A regulating device for wind turbine yaw correction, comprising a mounting base (1), characterized in that: The top surface of the mounting base (1) movably installs a connecting cylinder (4), further comprising: A detection mechanism (2) is arranged on the outside of the connecting cylinder (4) for monitoring the wind direction; An adjusting mechanism (3) is arranged on the top surface of the mounting base (1) for adjusting the steering angle of the mounting base (1), the adjusting mechanism (3) comprises a fixing cylinder (39) fixedly installed on the top surface of the mounting base (1), a plurality of installation grooves (312) are formed on the bottom surface of the outside of the fixing cylinder (39), two driven gears (313) for driving the connecting cylinder (4) to rotate are movably installed in the installation grooves (312), a plurality of tooth blocks (33) are fixedly installed on the inside of the connecting cylinder (4), a driving assembly is arranged on the top surface of the mounting base (1) for driving the two driven gears (313) to rotate, and a limiting assembly is arranged in the inside of the fixing cylinder (39) for limiting the position of the connecting cylinder (4) and facilitating the disassembly and maintenance of the connecting cylinder (4).
2. The regulating device based on yawing back of wind turbine generator set according to claim 1, characterized in that: The outside of the two driven gears (313) is engaged with the outside of the tooth blocks (33), and one side of the installation grooves (312) penetrates through the outside of the fixing cylinder (39) and extends to the inside of the fixing cylinder (39).
3. The adjusting device for yawing back a wind turbine based on the yawing deviation of a wind turbine generator according to claim 1, characterized in that: The driving assembly comprises a driving gear disc (32) movably installed on the top surface of the mounting base (1) for driving the two driven gears (313) to rotate, a DC motor (31) is fixedly installed on the top surface of the inner cavity of the mounting base (1), the outside of the driving gear disc (32) is engaged with the outside of the two driven gears (313), and the output end of the DC motor (31) movably penetrates through the inside of the mounting base (1) and is fixedly installed on the bottom surface of the driving gear disc (32).
4. The adjustment device for yawing back a wind turbine according to claim 1, characterized in that: The limiting assembly comprises movable grooves (36) formed on the left and right sides of the top surface of the inside of the fixing cylinder (39), a connecting plate (37) is movably installed in the inside of the movable grooves (36), limiting blocks (35) for limiting the rotation track of the connecting cylinder (4) are fixedly installed on the front and rear ends of the side close to the connecting cylinder (4) of the connecting plate (37), a ring groove (34) is formed on the top surface of the inside of the connecting cylinder (4), a bottom plate (310) is fixedly installed on the bottom surface of the inside of the fixing cylinder (39), a screw rod (38) for driving the connecting plate (37) to move is movably installed in the inside of the movable grooves (36), and a double-shaft motor (311) for driving the screw rod (38) to rotate is fixedly installed on the top surface of the bottom plate (310).
5. The regulating device for yawing back a wind turbine generator set according to claim 4, characterized in that: One side of the limiting blocks (35) movably penetrates through the inside of the movable grooves (36) and extends to the inside of the ring groove (34), the opposite ends of the screw rod (38) movably penetrate through the inside of the movable grooves (36) and are fixedly installed on the output end of the double-shaft motor (311), and one end of the screw rod (38) away from the double-shaft motor (311) is threaded through one side of the connecting plate (37) and movably penetrates through the inside of the movable grooves (36).
6. The adjustment device for yawing back a wind turbine based on a yawing angle of a wind turbine according to claim 1, characterized in that: Said detection mechanism (2) includes a casing (24) movably installed outside the connecting cylinder (4), the left side of the casing (24) is movably installed with a fan blade for connecting a wind turbine, the inside of the casing (24) is movably installed with a main shaft (22) connected to a power generation device, the top surface of the casing (24) is provided with a wind direction sensing assembly (23) for monitoring the wind direction, and the left end of the main shaft (22) movably penetrates the inside of the casing (24) and is fixedly installed on the right side of a rotating head (21).