Fan hoisting auxiliary stable traction system

Abstract

The utility model discloses a kind of fan hoisting auxiliary stable traction systems, belong to wind power generation equipment installation technical field, including at least two ground anchoring units on the ground around fan tower drum, and single ground anchoring unit is detachably connected with active traction mechanism, which is connected with the hoist of the hoisted fan component below crane by a flexible traction cable, it is composed of motor, frame, drum, tension sensor, wherein, motor and drum are arranged on frame, and motor is drivingly connected with drum, flexible traction cable is wound on drum, and tension sensor for monitoring the tension size of flexible traction cable is arranged on drum and in the flexible traction cable leading-out path;It also includes the controller of communication connection with tension sensor.The present fan hoisting auxiliary stable traction system can quickly eliminate the swing of hoisted fan component, realize smooth butt joint, significantly improve work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of wind power equipment installation technology, and particularly relates to the attitude stability and control during the hoisting process of large and heavy components (such as wind turbine blades and nacelles), specifically a wind turbine hoisting auxiliary stabilization traction system. Background Technology

[0002] Wind energy, as a clean and renewable energy source, plays a crucial role in the global energy structure transformation. To improve power generation efficiency, modern wind turbines are developing towards larger sizes, taller towers, and longer blades, which presents unprecedented challenges for turbine installation, especially the hoisting of key large components.

[0003] The hoisting of large wind turbine components, such as blades exceeding 100 meters in length and nacelles weighing over 100 tons, presents significant challenges: the working height is typically above 100 meters, and the components themselves have enormous windward areas. The high-altitude wind field environment is complex and variable, often accompanied by gusty strong winds and wind shear. Under these unpredictable wind load disturbances, freely suspended components are highly susceptible to severe pendulum effects, uncontrolled torsion, and wind drift. This unstable posture not only severely affects the installation accuracy of precise alignment between the component and the tower flange, but more importantly, it poses a significant safety hazard to expensive on-site hoisting equipment and personnel.

[0004] Therefore, how to effectively suppress the attitude deviation of hoisted objects under complex wind field conditions at high altitudes has become a key technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a wind turbine hoisting auxiliary stabilization traction system that can actively, accurately and automatically control the attitude of the hoisted object, aiming to solve the technical problems of uncontrollable attitude of the hoisted object, high safety risks, low docking accuracy and low construction efficiency caused by high-altitude wind load disturbance in existing wind turbine hoisting operations.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a wind turbine hoisting auxiliary stabilization traction system, which includes at least two ground anchoring units set on the ground around the wind turbine tower, and an active traction mechanism is detachably connected to each ground anchoring unit to ensure that the system has sufficient stability and wind resistance during high-altitude hoisting. The active traction mechanism is connected to the lifting device of the hoisted fan component below the crane via a flexible traction cable. This lifting device reliably connects the end of the flexible traction cable to the hoisted fan component. The active traction mechanism, capable of actively retracting and extending the flexible traction cable, consists of a motor, frame, drum, and tension sensor. The frame serves as the structural foundation for the supporting components, ensuring their stability and reliability. The motor and drum are mounted on the frame, with the motor and drum connected for transmission to control the retraction and extension of the flexible traction cable. The flexible traction cable is wound on the drum for traction control. Tension sensors are installed on the drum and along the lead-out path of the flexible traction cable to monitor its tension. The system also includes a controller communicatively connected to the tension sensor, providing real-time data. This controller receives the tension data of the flexible traction cable monitored by the tension sensor and, according to preset control logic, coordinates the retraction and extension actions of each active traction mechanism on the flexible traction cable, thereby actively adjusting the magnitude and direction of the traction force applied to the hoisted fan component to maintain its stability. In this way, the entire system can automatically adjust the magnitude and direction of the traction force applied to the hoisted fan component. This active adjustment capability effectively maintains the stability of the hoisted components, avoiding violent swaying and rotation caused by wind loads.

[0007] Using the above scheme, during the hoisting process, tension sensors monitor the state of the flexible traction cable in real time as wind speed changes and feed the data back to the controller. The controller analyzes this data to determine the current posture of the hoisted object and the impact of external wind forces, thereby coordinating and controlling each active traction mechanism to adjust the cable's extension and retraction in real time, ensuring the hoisted object remains in a stable state. This process significantly reduces the risks of working at heights while improving hoisting efficiency and docking accuracy.

[0008] Optionally, a servo motor or a geared motor can be used. A servo motor enables high-precision position, speed, and torque control, allowing for rapid response to changes in wind load during lifting operations and maintaining the stability of the lifted object. A geared motor, through its reduction gear mechanism, increases output torque and is suitable for applications requiring high force, helping to overcome the effects of gravity and wind during lifting operations. This flexible design allows for adaptive selection based on specific lifting conditions and the required control precision.

[0009] Optionally, a planetary reducer or a worm gear reducer can be installed between the motor and the drum. The planetary reducer can provide greater output torque within a smaller size, making it suitable for controlling large and heavy lifting components. The worm gear reducer, on the other hand, can achieve a larger reduction ratio, suitable for applications requiring low-speed, high-torque output. This flexible design provides the system with greater adaptability, ensuring safe and stable lifting operations in complex high-altitude environments.

[0010] Optionally, the ground anchoring unit uses a concrete counterweight block with ground anchors. This concrete counterweight block has a large mass and a low center of gravity, effectively resisting overturning forces that may occur during hoisting and improving the stability of the entire system. Furthermore, by embedding the ground anchors, the connection strength between the anchoring unit and the ground is enhanced, effectively preventing equipment displacement due to external forces during hoisting.

[0011] Optionally, the suspended fan components are fan blades or fan nacelles.

[0012] Optionally, the system also includes attitude sensors detachably connected to the wind turbine blades for monitoring yaw, pitch, and roll angle data, with the controller communicating with these sensors. It also includes wind speed and direction sensors located at the hoisting site to monitor real-time wind speed and direction changes, providing operators with crucial environmental information. The controller also communicates with these wind speed and direction sensors. This controller receives attitude sensor signals and environmental parameters, and based on preset control logic, further coordinates the release and retraction of the flexible traction cables by each active traction mechanism, thereby actively adjusting the magnitude and direction of the traction force applied to the hoisted wind turbine components to maintain their attitude stability.

[0013] The present invention has the following beneficial effects: This wind turbine hoisting auxiliary stabilization traction system provides power output through the motor of the active traction mechanism, increases torque through the reducer, and provides a key force feedback signal for closed-loop control through the tension sensor. This is further supplemented by attitude sensing signals and environmental parameters transmitted by attitude sensors and wind speed and direction sensors. The controller then coordinates the release and retraction of the flexible traction cable by each active traction mechanism, thereby actively adjusting the magnitude and direction of the traction force applied to the hoisted wind turbine component to maintain its hoisting stability. Thus, through the synergistic effect of the above elements, the system can autonomously adjust the magnitude and direction of the traction force applied to the hoisted wind turbine component, not only reducing safety risks but also improving the overall efficiency of the hoisting operation, ensuring the safe and smooth installation of the wind turbine equipment.

[0014] Other advantages, objectives, and features of this 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 and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram illustrating the application of the wind turbine hoisting auxiliary stabilization traction system of this utility model in wind turbine blade hoisting operations; Figure 2 for Figure 1 A schematic diagram of a single ground anchoring unit and active traction mechanism in the diagram; Figure 3 This is a block diagram illustrating the working principle of the wind turbine hoisting auxiliary stabilization traction system of this utility model; Reference numerals in the attached drawings: 1-Wind turbine tower; 2-Wind turbine blade; 3-Cycling; 4-Ground anchoring unit; 5-Active traction mechanism; 6-Flexible traction cable; 7-Lifting device; 8-Controller; 501-Motor; 502-Frame; 503-Drum; 504-Tension sensor; 801-Attitude sensor; 802-Wind speed and direction sensor. Detailed Implementation

[0016] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0017] Please see Figure 1This figure illustrates the overall application scenario of a wind turbine hoisting auxiliary stabilization traction system according to this utility model. In a typical wind turbine blade 2 hoisting operation, at least two ground anchoring units 4 are pre-arranged on the ground around the wind turbine tower 1, based on the prevailing wind direction and site topography. The crane 3 lifts the wind turbine blade 2 using its main hook. Through one or more lifting devices 7 or hoisting object connection mechanisms, the ends of several flexible traction cables 6 are respectively fixed to appropriate positions on the wind turbine blade 2, such as on the lifting device 7. The lifting device 7 is a flexible sling made of lightweight high-strength composite material or a special clamp customized according to the shape of the component. It has multiple selectable attachment points to flexibly adjust according to the different shapes, sizes, and center of gravity positions of the wind turbine components to be hoisted (such as wind turbine blades or nacelles), ensuring that the point of application of traction force can generate the most effective stabilizing torque. The other end of the flexible traction cable 6 is connected to the active traction mechanism 5 on its corresponding ground anchoring unit 4. All active traction mechanisms 5 communicate with the controller 8 via wired or wireless communication and receive unified coordination and command from it.

[0018] Please see Figure 2 This figure details the overall structure of a single ground anchoring unit 4 and the active traction mechanism 5 mounted on it. The ground anchoring unit 4 itself can be a large-mass concrete counterweight or firmly connected to the ground via ground anchors to provide sufficient reaction force. The active traction mechanism 5 is mounted on the frame 502 of the ground anchoring unit 4, and its core power source is a motor 501, which can be a servo motor or a geared motor for easy control. The output shaft of the motor 501 is directly connected to the drum 503, or the two are connected via a planetary reducer or a worm gear reducer to obtain better output torque, causing the drum 503 to rotate, thereby realizing the winding and unwinding of the flexible traction cable 6. A tension sensor 504 is installed along the path of the flexible traction cable 6 leading from the drum 503. This tension sensor 504 can monitor the tension of the flexible traction cable 6 in real time and send this data as a feedback signal to the controller 8. The controller 8 has built-in PID control or adaptive fuzzy control. It can calculate and generate control commands in real time based on the deviation between the actual posture fed back by the posture sensor 801 and the preset target posture, and combined with the wind load disturbance data provided by the wind speed and direction sensor 802. The commands are sent to the motors 501 of each active traction mechanism 5, thereby dynamically and collaboratively adjusting the tension of each flexible traction cable 6 to actively suppress the posture deviation of the suspended wind turbine components.

[0019] Please see Figure 3This figure illustrates the working principle block diagram of the controller 8 of this utility model. An attitude sensor 801, installed on the wind turbine blade 2 to be hoisted, continuously measures the real-time yaw angle, pitch angle, and roll angle data of the wind turbine blade 2. Simultaneously, a wind speed and direction sensor 802, positioned upwind of the hoisting site, such as on the wind turbine blade 2 to be hoisted, is responsible for collecting real-time environmental wind field data. These two sensors transmit the collected data to the controller 8 on the ground via a wireless communication module. The controller 8 is the brain of the entire system, typically an industrial computer with a built-in high-performance processor.

[0020] The specific implementation steps are as follows: First, before the hoisting operation begins, the construction team plans and arranges the positions and quantities of ground anchoring units 4 on the ground according to the hoisting plan and simulation calculation results, ensuring that the combined force they form can effectively control the hoisted object. Next, before the wind turbine blade 2 is lifted off the ground by the crane 3, the lifting device 7 (such as a flexible sling) is securely installed near the center of gravity of the wind turbine blade 2 or other optimal stress points, and the flexible traction cables 6 are connected. At the same time, the attitude sensor 801 and the wind speed and direction sensor 802 are fixed to the wind turbine blade 2. Then, the crane 3 begins to slowly lift the wind turbine blade 2. After the wind turbine blade 2 is completely off the ground, the on-site operator activates the "automatic stabilization mode" through the human-machine interface of the controller 8. Once in automatic mode, the controller 8 begins to operate. It compares the actual attitude data fed back by the attitude sensor 801 with the target attitude set by the operator in real time to obtain an attitude deviation signal. The PID control calculation within the controller 8, based on this deviation signal and combined with wind speed and direction data provided by the wind speed and direction sensor 802 as feedforward disturbance compensation, determines the tension value that each active traction mechanism 5 needs to apply or reduce. Subsequently, the controller 8 sends precise speed and torque commands to the motor 501 of each active traction mechanism 5. For example, if a westerly wind is detected causing the wind turbine blade 2 to yaw eastward, the controller 8 will immediately instruct the active traction module 5 on the east side to tighten its corresponding flexible traction cable 6 to increase tension, while simultaneously instructing the active traction module 5 on the west side to appropriately loosen its corresponding flexible traction cable 6 to reduce tension. This together generates a torque that resists the wind force and causes the wind turbine blade 2 to return to its westward orientation, ultimately dynamically stabilizing the wind turbine blade 2 to be hoisted at the target attitude. When the wind turbine blade 2 is hoisted to the hub near the wind turbine tower 1 for docking, the operator can switch the system to "manual fine-tuning mode". In this mode, the operator can precisely control one or more active traction mechanisms 5 using a lever or button to achieve rapid, impact-free alignment of the flange bolt holes and complete the installation.

[0021] By adopting the above scheme, the wind turbine hoisting auxiliary stabilization traction system has the advantages of active stabilization and high safety. Through active traction mechanism and closed-loop control, it can quickly and accurately resist wind load disturbance and achieve stable control of heavy objects at high altitudes, fundamentally eliminating the safety risks caused by attitude loss of control.

[0022] By adopting the above scheme, this wind turbine hoisting auxiliary stabilization traction system also has the advantages of precise control and doubled efficiency. It can achieve high-precision control of the attitude of the hoisted object. Especially in the final alignment and installation stage, it can quickly eliminate component shaking, achieve smooth docking, and significantly improve work efficiency.

[0023] By adopting the above scheme, this wind turbine hoisting auxiliary stabilization traction system also has the advantages of widening the working window and reducing costs. Due to its strong resistance to wind disturbance, it can increase the upper limit of the average wind speed that can be used for operation under safe conditions, effectively widening the meteorological working window and bringing significant economic benefits to the project.

[0024] By adopting the above solution, this wind turbine hoisting auxiliary stabilization traction system also has the advantages of high automation and reduced labor intensity. The core stability control process is automated through the controller, and operators only need to monitor and issue high-level commands (such as start, stop, and mode switching) through the human-machine interface. This significantly reduces the reliance on the skills and physical exertion of on-site operators, optimizing the allocation of on-site human resources.

[0025] The present invention provides an active, multi-sensor feedback, closed-loop control wind turbine hoisting stabilization system, which is mainly characterized by: first, a multi-anchor point active traction structure, which achieves multi-directional active control of the hoisted object through the coordinated work of multiple ground anchoring units and the active traction mechanism; second, sensor fusion and closed-loop control: integrating tension sensors, attitude sensors, and wind speed and direction sensors, and achieving real-time feedback and adaptive control through a controller; and third, automated wind disturbance resistance, where the system can dynamically adjust the tension of each cable according to the wind load, significantly suppressing the swaying and torsion of the hoisted object.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A wind turbine hoisting auxiliary stabilizing traction system, characterized in that, The system includes at least two ground anchoring units (4) set on the ground around the wind turbine tower (1), and an active traction mechanism (5) is detachably connected to each ground anchoring unit (4). The active traction mechanism (5) is connected to the lifting device (7) of the wind turbine component being lifted below the crane (3) via a flexible traction cable (6). It consists of a motor (501), a frame (502), a drum (503), and a tension sensor (504). The frame (502) is equipped with a motor (501) and a drum (503), and the motor (501) is connected to the drum (503) in a drive connection. The flexible traction cable (6) is wound on the drum (503), and a tension sensor (504) is set on the drum (503) and along the lead-out path of the flexible traction cable (6) to monitor the tension of the flexible traction cable (6). The system also includes a controller (8) that is communicatively connected to the tension sensor (504).

2. The wind turbine hoisting auxiliary stabilization traction system according to claim 1, characterized in that, The motor (501) is a servo motor or a geared motor.

3. The wind turbine hoisting auxiliary stabilization traction system according to claim 2, characterized in that, A planetary reducer or a worm gear reducer is provided between the motor (501) and the drum (503).

4. The wind turbine hoisting auxiliary stabilizing traction system according to claim 1, characterized in that, The ground anchoring unit (4) uses a concrete counterweight block with a ground anchor.

5. The wind turbine hoisting auxiliary stabilizing traction system according to any one of claims 1-4, characterized in that, The suspended fan components are fan blades (2) or fan nacelles.

6. The wind turbine hoisting auxiliary stabilization traction system according to claim 5, characterized in that, It also includes an attitude sensor (801) mounted on the wind turbine blade (2) and detachably connected to monitor yaw, pitch and roll angle data, and the controller (8) is also in communication with the attitude sensor (801).

7. The wind turbine hoisting auxiliary stabilization traction system according to claim 6, characterized in that, It also includes a wind speed and direction sensor (802) arranged at the hoisting site, and the controller (8) is also connected in communication with the wind speed and direction sensor (802).

Images