Multi-point gradient detection device for fan tower drum

Abstract

The invention discloses a multi-point gradient detection device for a fan tower drum, and relates to the technical field of fan gradient detection. Continuous multi-point detection from the bottom to the top of the tower drum is achieved through cooperative work of the first drum body and the second drum body in cooperation with the first floating detection assembly and the second floating detection assembly, and gradient data at different height positions can be collected in real time through a wireless gradient detector arranged in each floating detection assembly; data can be uploaded to a mobile terminal in time, so that response can be made in time, limitation of single-point detection is avoided, and the effect of comprehensively reflecting the overall state of the tower drum is achieved; the mechanical energy generated by rotation of the fan blades is converted into detection power through the linkage assembly, an external power source is not needed to serve as a power source, the gradient detection mechanism can be driven to continuously operate through the power of the fan, and therefore the green and energy-saving detection effect is achieved, manual intervention is not needed in the process, and the automation level and efficiency of detection are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of wind turbine tilt detection technology, specifically a multi-point tilt detection device for wind turbine towers. Background Technology

[0002] After the wind turbine is assembled, it usually needs to undergo a period of safety testing to ensure its stable operation. This testing is conducted to debug the functions of each part of the wind turbine, and it can only be put into use after each test result meets the requirements.

[0003] Among the safety testing projects, the detection of wind turbine tower tilt is particularly important, as it directly affects the structural safety and operational stability of the wind turbine unit. If the tilt exceeds the standard, it may lead to serious consequences such as increased unit vibration, component wear, or even collapse. Through accurate detection, potential tower deformation can be detected in time, providing a basis for subsequent maintenance and reinforcement, and preventing accidents from occurring.

[0004] Referring to the intelligent operation monitoring system for wind turbines disclosed in patent application CN216241098U, a system using pressure sensors, settlement sensors, vibration sensors, acceleration sensors, and tilt sensors can be used to monitor parameters such as stress, vibration, and skew of the tower base, tower casing, and wind turbine blades. By monitoring the operation of the wind turbine from multiple angles, it helps to detect and handle abnormalities in the wind turbine in a timely manner, thereby improving the safety of equipment operation.

[0005] The aforementioned intelligent operation monitoring system for wind turbines has the following drawbacks in practical use: Tower structures are affected by multiple factors such as wind load, foundation settlement, and welding defects, often exhibiting non-uniform deformation characteristics, such as large top offset, mid-section twisting, or unilateral tilting. Single-point detection can only reflect the tilting state at a single location and cannot identify the overall deformation trend or local anomalies. For example, if the bottom of the tower tilts due to foundation settlement, while the top offsets in the opposite direction due to wind load, single-point detection can easily be misjudged as "normal overall tilting," when in fact there is already a structural risk.

[0006] Existing monitoring equipment mostly relies on fixed-installation tilt sensors, which are difficult to adapt to the complex deformation patterns of towers and cannot achieve multi-point collaborative measurement and dynamic compensation, resulting in low data redundancy and poor diagnostic reliability.

[0007] Therefore, this invention proposes a multi-point tilt detection device for wind turbine towers to solve the above problems. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a multi-point tilt detection device for wind turbine towers. This solves the problem that wind turbine towers are often subject to non-uniform deformation due to various environmental factors, such as large top offset, mid-section twisting, or unilateral tilting. Single-point detection can only reflect the tilt state at a single location and cannot identify the overall deformation trend or local anomalies. Single-point detection is prone to misjudgment. Moreover, detection equipment often relies on fixed tilt sensors, which cannot perform multi-point collaborative measurement and dynamic compensation, resulting in low data redundancy and poor diagnostic reliability.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a multi-point tilt detection device for a wind turbine tower, comprising a tower and a mounting base disposed on its top, wherein a fan blade is rotatably connected to one side of the mounting base via a first transmission shaft, and further comprising: The linkage assembly includes a first helical gear disk fixedly sleeved on the outer wall of a first drive shaft, a first helical gear meshing on one side of the first helical gear, a second drive shaft fixedly disposed at the bottom of the first helical gear, the bottom end of the second drive shaft rotatably passing through the mounting base and extending into the tower, and a third gear fixedly disposed at the bottom end of the second drive shaft. The tilt detection mechanism is installed inside the tower and kept parallel to the central axis of the tower. It transmits power through a cyclic detection power component to drive the first floating detection component and the second floating detection component to perform tilt detection operations from the bottom to the top of the tower. The power transmission direction is controlled by a power switching component to complete the cyclic detection action and obtain tilt data at different positions of the tower. The mobile terminal is used to receive tilt detection data input by the tilt detection mechanism in real time, and to comprehensively evaluate the status of the tower based on the tilt detection data obtained at different locations.

[0010] Furthermore, the tilt detection mechanism includes a first cylinder and a second cylinder that are fixedly connected to both sides of the inner wall of the tower via a bracket. The top of the first cylinder and the second cylinder are each equipped with a triggering component. The cyclic detection power component is used to drive the first floating detection component and the second floating detection component to move up and down cyclically. The water flow pumping direction of the cyclic detection power component is controlled by a power switching component.

[0011] Furthermore, the triggering component includes a cover plate and a controller fixedly disposed at its bottom, wherein a touch switch for triggering the controller to execute built-in instructions is fixedly disposed at the bottom of the controller.

[0012] Furthermore, the No. 1 floating detection component and the No. 2 floating detection component have the same structure. The No. 1 floating detection component includes a float that is sealed and slidably disposed inside the No. 1 cylinder. The top of the float is respectively fixed with a wireless tilt detector for detecting the tilt of the tower and a trigger rod for triggering a touch switch. The wireless tilt detector sends the measured tilt result to the mobile terminal through wireless transmission.

[0013] Furthermore, the cyclic detection power assembly includes a first pumping assembly and a second pumping assembly. The first pumping assembly and the second pumping assembly are controlled by a first intermittent drive unit and a second intermittent drive unit, respectively. The first pumping assembly includes a liquid storage tank and a transmission pipe fixedly installed at one end of the liquid storage tank. A third one-way valve for allowing liquid to flow out of the liquid storage tank is fixedly installed inside the transmission pipe. A piston is slidably installed on one side of the inside of the liquid storage tank, and a limit plate is fixedly installed on the other side of the inside of the liquid storage tank. A push rod is fixedly installed at one end of the piston. The push rod slides through the limit plate and is fixedly installed with a paddle. A spring is slidably sleeved on the outer wall of the push rod between the paddle and the limit plate. The first pumping assembly and the second pumping assembly have the same structure.

[0014] Furthermore, a first conduit is fixedly installed at the bottom of the first pumping assembly near the third check valve, and a first check valve is fixedly installed inside the first conduit to allow liquid to flow only to the storage tank. A second conduit is fixedly installed on the bottom of the second cylinder away from the first pumping assembly, and a fourth check valve is fixedly installed inside the second conduit to allow liquid to flow only into the second cylinder.

[0015] Furthermore, the first intermittent drive unit includes a first rotating wheel and a first protrusion fixedly disposed on the side wall of the first rotating wheel for pushing the paddle to move. A second helical gear is also fixedly disposed on the side wall of the first rotating wheel. A second helical gear is meshed on one side of the second helical gear, and a first bushing is fixedly disposed on the top end of the second helical gear.

[0016] Furthermore, the second intermittent drive unit includes a second rotating wheel rotatably disposed above the second pumping assembly. A second protrusion is fixedly disposed on the outer wall of the second rotating wheel. A third helical gear is also fixedly disposed on the side wall of the second rotating wheel. A third helical gear is meshed on one side of the third helical gear. A second bushing is fixedly disposed at the top end of the third helical gear.

[0017] Furthermore, the power switching assembly includes a first power connecting shaft and a second power connecting shaft that are slidably disposed inside the first bushing and the second bushing, respectively. The top ends of the first power connecting shaft and the second power connecting shaft are respectively fixedly disposed with a first gear and a second gear that mesh with a third gear. A connecting plate is rotatably sleeved on the outer walls of the first power connecting shaft and the second power connecting shaft. An electric push rod is disposed below the connecting plate, and the output shaft of the electric push rod is fixedly disposed at the bottom of the connecting plate.

[0018] This invention provides a multi-point tilt detection device for wind turbine towers. Compared with the prior art, it has the following advantages: 1. A multi-point tilt detection device for wind turbine towers, which, through the coordinated operation of a first and second tower body, and in conjunction with a first and second floating detection component, achieves continuous multi-point detection of the tower from bottom to top. Furthermore, the wireless tilt detector built into each floating detection component can collect tilt data at different height positions in real time and upload the data to a mobile terminal promptly, facilitating timely responses and avoiding the limitations of single-point detection. This provides a comprehensive reflection of the overall tower condition. The floats move up and down with the liquid inside the tower body, causing the wireless tilt detector to rise synchronously, achieving detection while in motion. This avoids the limitations of fixed sensors that can only detect fixed positions, dynamically capturing tilt changes at various height segments of the tower, and accurately detecting the tilt of the wind turbine tower in a timely manner, facilitating prompt action and preventing serious consequences.

[0019] 2. A multi-point tilt detection device for wind turbine towers converts the mechanical energy generated by the rotation of the fan blades into detection power through a linkage component. It eliminates the need for an external power source, utilizing the wind turbine's own power to drive the tilt detection mechanism continuously, thus achieving green and energy-saving detection. Furthermore, the triggering component and the power switching component work collaboratively. When the float reaches the top of the tower, the trigger rod prioritizes triggering the touch switch, which instructs the electric push rod via a wireless module. The electric push rod pushes or pulls the connecting plate to control the engagement or disengagement of the first or second gear with the third gear, automatically switching the power transmission direction. This automatically switches the first pumping component or the second pumping component to the working state, enabling cyclic detection by the first and second floating detection components. This process requires no manual intervention, significantly improving the automation level and efficiency of the detection.

[0020] 3. A multi-point tilt detection device for wind turbine towers, wherein the power switching component, through the design of the limiting slide groove and guide slider inside the bushing, ensures that the power connection shaft can only slide up and down and cannot rotate axially. With the precise control of the electric push rod, stable switching of the engagement or disengagement of the first, second and third gears is achieved. Furthermore, the tilt detection mechanism is completely integrated inside the tower and parallel to the central axis of the tower, without occupying external space, without affecting the normal operation of the wind turbine, and at the same time avoiding interference from the external environment on the detection equipment.

[0021] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic cross-sectional view of the present invention; Figure 3 For the present invention Figure 2 A magnified structural diagram of part A in the diagram; Figure 4 For the present invention Figure 2 A magnified structural diagram of part B in the diagram; Figure 5 This is a schematic diagram of the first cross-sectional structure of the tilt detection mechanism of the present invention; Figure 6 This is a schematic diagram of the trigger component structure of the present invention; Figure 7 For the present invention Figure 5 A magnified structural diagram of part C in the diagram; Figure 8 This is a schematic diagram of the second cross-sectional structure of the tilt detection mechanism of the present invention; Figure 9 This is a schematic diagram of the first cross-sectional structure of the cyclic detection power component of the present invention; Figure 10 This is a schematic diagram of the second cross-sectional structure of the cyclic detection power component of the present invention; Figure 11 This is a schematic diagram of the power switching component structure of the present invention.

[0023] In the diagram: 1. Tower; 2. Mounting base; 3. Fan blade; 4. First drive shaft; 5. First helical gear disc; 6. First helical gear; 7. Second drive shaft; 8. Inclination detection mechanism; 81. First cylinder; 82. Second cylinder; 83. Trigger assembly; 831. Cover plate; 832. Controller; 833. Touch switch; 84. First floating detection assembly; 841. Float; 842. Wireless inclination detector; 843. Trigger rod; 85. Second floating detection assembly; 86. Circulation detection power assembly; 861. First pumping assembly; 861a. Liquid storage tank; 861b. Transmission pipe; 861c. Third one-way valve; 861d. Piston; 861e. Limiting plate; 861f. Push rod; 86 1g, Paddle; 861h, Spring; 862, Second Pumping Assembly; 863, First Conduit; 864, First Check Valve; 865, First Rotating Wheel; 866, First Protrusion; 867, Second Helical Gear Disc; 868, Second Helical Gear; 869, First Bushing; 8610, Second Rotating Wheel; 8611, Second Protrusion; 8613, Third Helical Gear Disc; 8614, Third Helical Gear; 8615, Second Bushing; 8616, Second Conduit; 8617, Fourth Check Valve; 87, Power Switching Assembly; 871, First Power Connecting Shaft; 872, First Gear; 873, Second Power Connecting Shaft; 874, Second Gear; 875, Connecting Plate; 877, Electric Push Rod; 9, Third Gear. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] This invention provides three technical solutions: a multi-point tilt detection device for wind turbine towers, specifically including the following embodiments: like Figures 1 to 3 The first embodiment is shown: a multi-point tilt detection device for a wind turbine tower, including a tower 1 and a mounting base 2 disposed on its top, wherein a fan blade 3 is rotatably connected to one side of the mounting base 2 via a first drive shaft 4, and further comprising: The linkage assembly includes a first helical gear disk 5 fixedly sleeved on the outer wall of the first drive shaft 4, a first helical gear 6 meshing on one side of the first helical gear disk 5, a second drive shaft 7 fixedly installed at the bottom of the first helical gear 6, the bottom end of the second drive shaft 7 rotatably passing through the mounting base 2 and extending into the tower 1, and a third gear 9 fixedly installed at the bottom end of the second drive shaft 7. The tilt detection mechanism 8 is set inside the tower 1 and kept parallel to the central axis of the tower 1. It transmits power through the cyclic detection power assembly 86 to drive the first floating detection assembly 84 and the second floating detection assembly 85 to perform tilt detection operations from the bottom to the top of the tower 1. The power transmission direction is controlled by the power switching assembly 87 to complete the cyclic detection action and obtain tilt data at different positions of the tower 1. The mobile terminal is used to receive tilt detection data input by the tilt detection mechanism 8 in real time, and to comprehensively evaluate the state of the tower 1 based on the tilt detection data obtained at different locations.

[0026] like Figures 4 to 10The second embodiment is shown, which differs from the first embodiment in that: the tilt detection mechanism 8 includes a first cylinder 81 and a second cylinder 82, which are fixedly connected to both sides of the inner wall of the tower 1 via brackets. A trigger assembly 83 is provided at the top of both the first cylinder 81 and the second cylinder 82. A cyclic detection power assembly 86 drives the first floating detection assembly 84 and the second floating detection assembly 85 to move up and down cyclically. The water flow pumping direction of the cyclic detection power assembly 86 is controlled by a power switching assembly 87. The trigger assembly 83 includes a cover plate 831 and a controller 832 fixedly disposed at its bottom. A touch switch 833 for triggering the controller 832 to execute built-in commands is fixedly disposed at the bottom of the controller 832. The first floating detection component 84 and the second floating detection component 85 have the same structure. The first floating detection component 84 includes a float 841 that is sealed and slidably disposed inside the first cylinder 81. The top of the float 841 is respectively fixed with a wireless tilt detector 842 for detecting the tilt of the tower 1 and a trigger rod 843 for triggering the touch switch 833. The wireless tilt detector 842 transmits the measured tilt result to the mobile terminal wirelessly. The top of the trigger rod 843 is higher than the wireless tilt detector 842, so that the trigger rod 843 has already triggered the touch switch 833 before the wireless tilt detector 842 touches the top of the inner cavity of the first cylinder 81. The wireless transmission module integrated in the controller 832 sends a command to the electric push rod 877, causing the electric push rod 877 to pull down the connecting plate 875 by a preset distance, ensuring that the first gear 872 and the third gear 9 are separated while the second gear 874 and the third gear 9 are engaged. The cyclic detection power assembly 86 includes a first pumping assembly 861 and a second pumping assembly 862. The first pumping assembly 861 and the second pumping assembly 862 are controlled by a first intermittent drive unit and a second intermittent drive unit, respectively. The first pumping assembly 861 further includes a liquid storage tank 861a and a transmission pipe 861b fixedly installed at one end of the liquid storage tank 861a. A third one-way valve 861c is fixedly installed inside the transmission pipe 861b to allow liquid to flow only from the liquid storage tank 861a. A piston 861d is slidably and sealed on one side of the interior of the reservoir 861a, and a limiting plate 861e is fixedly installed on the other side of the interior of the reservoir 861a. A push rod 861f is fixedly installed at one end of the piston 861d. The push rod 861f slides through the limiting plate 861e and is fixedly installed with a paddle 861g. A spring 861h is slidably sleeved on the outer wall of the push rod 861f between the paddle 861g and the limiting plate 861e. The first pumping assembly 861 and the second pumping assembly 862 have the same structure. An clearance groove is provided in the reservoir 861a near the paddle 861g, so that the paddle 861g can move back and forth smoothly.

[0027] Through the coordinated operation of cylinder 1 81 and cylinder 2 82, along with floating detection components 1 84 and 2 85, continuous multi-point detection of tower 1 from bottom to top is achieved. Furthermore, the built-in wireless tilt detector 842 in each floating detection component can collect tilt data at different heights in real time and upload the data to a mobile terminal promptly, facilitating timely responses and avoiding the limitations of single-point detection. This achieves a comprehensive reflection of the overall state of tower 1. The float 841 moves up and down with the liquid inside the cylinder, causing the wireless tilt detector 842 to rise synchronously, achieving detection while in motion. This avoids the limitations of fixed sensors that can only detect fixed positions, dynamically capturing tilt changes at various heights of tower 1, and accurately detecting the tilt of the wind turbine tower 1 in a timely manner, facilitating prompt action and preventing serious consequences.

[0028] In this embodiment, a first conduit 863 is fixedly installed at the bottom of the first pumping assembly 861 near the third one-way valve 861c. A first one-way valve 864 is fixedly installed inside the first conduit 863 to allow liquid to flow only into the storage tank 861a. The first conduit 863 is connected to the second cylinder 82, and liquid in the second cylinder 82 flows into the storage tank 861a through the first conduit 863. A second conduit 8616 is fixedly installed on the bottom side of the second cylinder 82 away from the first pumping assembly 861. A fourth one-way valve 8617 is fixedly installed inside the second conduit 8616 to allow liquid to flow only into the second cylinder 82. The second conduit 8616 is connected to the first cylinder 81, and liquid in the first cylinder 81 flows into the first pumping assembly 861 through the second conduit 8616.

[0029] In this embodiment, the first intermittent drive unit includes a first rotating wheel 865 and a first protrusion 866 fixedly disposed on the side wall of the first rotating wheel 865 for pushing the paddle 861g to move. A second helical gear disk 867 is also fixedly disposed on the side wall of the first rotating wheel 865. A second helical gear 868 is meshed on one side of the second helical gear disk 867, and a first bushing 869 is fixedly disposed on the top of the second helical gear 868. The second intermittent drive unit includes a second rotating wheel 8610 rotatably disposed above the second pumping assembly 862. A second protrusion 8611 is fixedly disposed on the outer wall of the second rotating wheel 8610. A third helical gear disk 8613 is also fixedly disposed on the side wall of the second rotating wheel 8610. A third helical gear 8614 is meshed on one side of the third helical gear disk 8613, and a second bushing 8615 is fixedly disposed on the top of the third helical gear 8614. Both the second rotating wheel 8610 and the first rotating wheel 865 are located inside the protective shell, and the first rotating wheel 865 and the second rotating wheel 8610 are rotatably mounted on the inner wall of the protective shell via a rotating shaft.

[0030] like Figure 11A third embodiment is shown, which differs from the second embodiment in that: the power switching assembly 87 includes a first power connecting shaft 871 and a second power connecting shaft 873 that are slidably disposed inside the first bushing 869 and the second bushing 8615, respectively. The top ends of the first power connecting shaft 871 and the second power connecting shaft 873 are respectively fixedly disposed with a first gear 872 and a second gear 874 that mesh with the third gear 9. A connecting plate 875 is rotatably sleeved on the outer walls of the first power connecting shaft 871 and the second power connecting shaft 873. An electric push rod 877 is disposed below the connecting plate 875, and the output shaft of the electric push rod 877 is fixedly disposed at the bottom of the connecting plate 875.

[0031] The mechanical energy generated by the rotation of the fan blade 3 is converted into detection power through the linkage component. No external power source is required. The tilt detection mechanism 8 can be continuously driven by the fan's own power, thus achieving the effect of green and energy-saving detection. Secondly, the trigger component 83 and the power switching component can work together. When the float 841 reaches the top of the cylinder, the trigger rod 843 first triggers the touch switch 833. The wireless module commands the electric push rod 877, which pushes or pulls the connecting plate 875 to control the meshing or disengagement of the first gear 872 or the second gear 874 with the third gear 9, automatically switching the power transmission direction. This achieves automatic switching between the working state of the first pumping component 861 and the working state of the second pumping component 862, realizing the cyclic detection of the first floating detection component 84 and the second floating detection component 85. This process does not require manual intervention, greatly improving the automation level and efficiency of the detection.

[0032] In this embodiment, a bearing plate is fixedly sleeved between the first cylinder 81 and the second cylinder 82, and an electric push rod 877 is fixedly mounted on the bearing plate; a limiting groove is opened on the inner wall of the first bushing 869 and the second bushing 8615, and a guide slider adapted to the limiting groove structure is fixedly mounted on the outer wall of the first power connecting shaft 871 and the second power connecting shaft 873. Multiple guide sliders are slidably mounted in the limiting grooves at corresponding positions to control the first power connecting shaft 871 and the second power connecting shaft 873 to slide up and down relative to the first bushing 869 and the second bushing 8615 but not to rotate axially; When in use, the wind drives the fan blades 3 to rotate, which causes the first drive shaft 4 to drive the first helical gear disk 5 to rotate synchronously. The first helical gear disk 5 drives the first helical gear 6 that meshes with it to rotate, thereby causing the second drive shaft 7 to drive the third gear 9 to rotate. When the electric push rod 877 pushes the first gear 872 upward, the first gear 872 meshes with the third gear 9. The rotation of the third gear 9 simultaneously drives the first gear 872 to rotate, thereby causing the first power connecting shaft 871 to drive the first bushing 869 to rotate. When the second helical gear 868 drives the first protrusion 866 to rotate, it simultaneously drives the first rotating wheel 865 to rotate. During the circular rotation of the first rotating wheel 865, the first protrusion 866 and the paddle 861g meet and move the paddle 861g closer to the inside of the liquid storage cylinder 861a. The spring 861h is compressed and undergoes elastic deformation. The water inside the liquid storage cylinder 861a is squeezed out by the piston 861d and input into the first cylinder 81 through the transmission pipe 861b. When the first protrusion 866 and the paddle 861g disengage, the spring 861h... The elastic force of h pushes the lever 861g to reset. When the piston 861d resets, the suction force generated draws some of the liquid in the second cylinder 82 through the first conduit 863 and stores it in the storage cylinder 861a. As the amount of water in the first cylinder 81 increases, the buoyancy of the liquid at the bottom of the first floating detection component 84 gradually pushes the first floating detection component 84 to move upward. The wireless tilt detector 842 moves upward synchronously. When the first pumping component 861 injects a portion of liquid, the height of the wireless tilt detector 842 rises accordingly, and the tilt at that height can be detected. Similarly, when the liquid inside the second cylinder 82 is drawn into the first cylinder 81, the wireless tilt detector 842 in the second floating detection component 85 can detect the tilt of the tower 1 at its location.

[0033] When the first floating detection component 84 moves upward to the top of the first cylinder 81, because the top of the trigger rod 843 is higher than the wireless tilt detector 842, the wireless tilt detector 842 does not contact the top of the inner cavity of the first cylinder 81. The trigger rod 843 has already triggered the touch switch 833, sending a command to the electric push rod 877 via the wireless transmission module integrated inside the controller 832. This causes the electric push rod 877 to pull the connecting plate 875 down a preset distance, ensuring that the first gear 872 and the third gear 9 separate while the second gear 874 and the third gear 9 mesh. At this time, the driving force of the first bushing 869 is interrupted, and only the second bushing 8615 drives the third helical gear 8614 to rotate. When the second rotating wheel 8610 rotates, it causes the second protrusion 8611 to move the spring 861h inside the second pumping component 862, thereby causing the second pump... The piston 861d inside the pumping component 862 squeezes the liquid in the second pumping component 862 into the second cylinder 82, gradually increasing the amount of liquid in the second cylinder 82. As the second floating detection component 85 moves upward, it simultaneously detects the tilt of the tower 1 at different heights. When the trigger rod 843 inside the second floating detection component 85 triggers its internal touch switch 833, the touch switch 833 controls the input end of the electric push rod 877 to push the connecting plate 875 upward. The second gear 874 and the third gear 9 separate again, while the first gear 872 meshes with the third gear 9 again. This cycle repeats to perform multi-point tilt detection on the tower 1. The wireless transmission modules built into the first floating detection component 84 and the second floating detection component 85 transmit the detected tilt data to a mobile terminal for analysis.

[0034] 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 process, method, article, or apparatus.

[0035] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-point tilt detection device for a wind turbine tower, comprising a tower and a mounting base disposed on its top, wherein a fan blade is rotatably connected to one side of the mounting base via a first transmission shaft, characterized in that, Also includes: The linkage assembly includes a first helical gear disk fixedly sleeved on the outer wall of a first drive shaft, a first helical gear meshing on one side of the first helical gear, a second drive shaft fixedly disposed at the bottom of the first helical gear, the bottom end of the second drive shaft rotatably passing through the mounting base and extending into the tower, and a third gear fixedly disposed at the bottom end of the second drive shaft. The tilt detection mechanism is installed inside the tower and kept parallel to the central axis of the tower. It transmits power through a cyclic detection power component to drive the first floating detection component and the second floating detection component to perform tilt detection operations from the bottom to the top of the tower. The power transmission direction is controlled by a power switching component to complete the cyclic detection action and obtain tilt data at different positions of the tower. The mobile terminal is used to receive tilt detection data input by the tilt detection mechanism in real time, and to comprehensively evaluate the status of the tower based on the tilt detection data obtained at different locations.

2. The multi-point tilt detection device for wind turbine towers according to claim 1, characterized in that: The tilt detection mechanism includes a first cylinder and a second cylinder, which are fixedly connected to the inner walls of the tower via brackets. The top of the first cylinder and the second cylinder are each equipped with a triggering component. A cyclic detection power component is used to drive the first floating detection component and the second floating detection component to move up and down cyclically. The water flow pumping direction of the cyclic detection power component is controlled by a power switching component.

3. The multi-point tilt detection device for wind turbine towers according to claim 2, characterized in that: The triggering component includes a cover plate and a controller fixedly mounted on its bottom. The bottom of the controller is fixedly equipped with a touch switch for triggering the controller to execute built-in instructions.

4. The multi-point tilt detection device for wind turbine towers according to claim 3, characterized in that: The No. 1 floating detection component and the No. 2 floating detection component have the same structure. The No. 1 floating detection component includes a float that is sealed and slidably disposed inside the No. 1 cylinder. The top of the float is respectively fixed with a wireless tilt detector for detecting the tilt of the tower and a trigger rod for triggering the touch switch. The wireless tilt detector sends the measured tilt result to the mobile terminal through wireless transmission.

5. The multi-point tilt detection device for wind turbine towers according to claim 2, characterized in that: The cyclic detection power assembly includes a first pumping assembly and a second pumping assembly. The first pumping assembly and the second pumping assembly are controlled by a first intermittent drive unit and a second intermittent drive unit, respectively. The first pumping assembly includes a liquid storage tank and a transmission pipe fixedly installed at one end of the liquid storage tank. A third one-way valve is fixedly installed inside the transmission pipe to allow liquid to flow out only from the liquid storage tank. A piston is sealed and slidably installed on one side of the inside of the liquid storage tank, and a limit plate is fixedly installed on the other side of the inside of the liquid storage tank. A push rod is fixedly installed at one end of the piston. The push rod slides through the limit plate and is fixedly installed with a paddle. A spring is slidably sleeved on the outer wall of the push rod between the paddle and the limit plate. The first pumping assembly and the second pumping assembly have the same structure.

6. The multi-point tilt detection device for wind turbine towers according to claim 5, characterized in that: A first conduit is fixedly installed at the bottom of the first pumping assembly near the third check valve, and a first check valve is fixedly installed inside the first conduit to allow liquid to flow only to the storage tank. A second conduit is fixedly installed on the bottom side of the second cylinder away from the first pumping assembly, and a fourth one-way valve is fixedly installed inside the second conduit, allowing only liquid to flow into the second cylinder.

7. The multi-point tilt detection device for wind turbine towers according to claim 5, characterized in that: The first intermittent drive unit includes a first rotating wheel and a first protrusion fixedly disposed on the side wall of the first rotating wheel for pushing the paddle to move. A second helical gear is also fixedly disposed on the side wall of the first rotating wheel. A second helical gear is meshed on one side of the second helical gear, and a first bushing is fixedly disposed on the top end of the second helical gear.

8. A multi-point tilt detection device for wind turbine towers according to claim 5, characterized in that: The second intermittent drive unit includes a second rotating wheel rotatably disposed above the second pumping assembly. A second protrusion is fixedly disposed on the outer wall of the second rotating wheel. A third helical gear is also fixedly disposed on the side wall of the second rotating wheel. A third helical gear is meshed on one side of the third helical gear. A second bushing is fixedly disposed at the top of the third helical gear.

9. A multi-point tilt detection device for wind turbine towers according to claim 7, characterized in that: The power switching assembly includes a first power connecting shaft and a second power connecting shaft that are slidably disposed inside a first bushing and a second bushing, respectively. The top ends of the first power connecting shaft and the second power connecting shaft are respectively fixedly disposed with a first gear and a second gear that mesh with a third gear. A connecting plate is rotatably sleeved on the outer walls of the first power connecting shaft and the second power connecting shaft. An electric push rod is disposed below the connecting plate, and the output shaft of the electric push rod is fixedly disposed at the bottom of the connecting plate.

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