A fan blade transport warning device

Abstract

The application discloses a fan blade transportation warning device, which comprises an obstacle detection sensor installed on a fan blade, wherein the obstacle detection sensor is electrically connected with an alarm through a controller, and the alarm is installed in a cab of a lifting vehicle. In the application, the ultrasonic sensor detects obstacles around the fan blade in real time during the transportation of the fan blade. When the ultrasonic sensor detects the obstacles, the ultrasonic sensor controls the alarm to give an alarm to remind the driver to stop the vehicle immediately, so as to avoid the damage of the fan blade caused by the continuous advance.

Description

Technical Field

[0001] This invention relates to a warning device for transporting wind turbine blades, belonging to the field of wind turbine transportation technology. Background Technology

[0002] Wind energy, as a clean and renewable energy source, is receiving increasing attention from countries around the world. Its reserves are enormous; the global wind energy capacity is approximately 2.74 × 10⁹ MW, of which 2 × 10⁷ MW is usable, which is 10 times greater than the total exploitable hydropower on Earth. China has vast wind energy reserves, widely distributed, with onshore wind energy reserves alone amounting to approximately 253 million kilowatts.

[0003] Wind turbines are typically installed on hilltops in windy locations. Due to their large size—for example, a wind turbine blade can reach 97.3 meters in length—it's necessary to disassemble the turbine blades, tower, and other components, transport them to the site, and then install them. The turbine blades are usually transported using a lifting vehicle. During this process, the blade tip is tilted upwards, making it susceptible to damage from overhead obstacles such as signs, power lines, bridges, and trees. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a wind turbine blade transportation warning device to solve the technical problems existing in the prior art.

[0005] The technical solution adopted by the present invention is as follows: a wind turbine blade transportation warning device, including an obstacle detection sensor installed on the wind turbine blade, the obstacle detection sensor being electrically connected to an alarm via a controller, and the alarm being installed in the cab of the lifting vehicle.

[0006] Preferably, the number of obstacle detection sensors is set to multiple groups, which are evenly distributed along the extension direction of the wind turbine blades.

[0007] Preferably, each group of obstacle detection sensors includes at least four, which are respectively disposed on the top, bottom and sides of the wind turbine blades.

[0008] Preferably, the obstacle sensor is an ultrasonic sensor.

[0009] Preferably, it also includes a protection mechanism, which includes a fixed rod arranged vertically at the lower end of the middle of the fan blade. A sliding cylinder is slidably connected to the portion of the lifting vehicle plate located below the fixed rod. The sliding cylinder can only slide horizontally. The lower end of the fixed rod passes through the top of the sliding cylinder and is hinged to a slider. The fixed rod and the sliding cylinder are slidably and sealingly connected. The slider and the sliding cylinder are slidably and sealingly connected. The side wall of the sliding cylinder is provided with two annular cavities, one at the bottom and one at the bottom. A one-way inlet valve and a one-way outlet valve are provided between the bottom of the sliding cylinder and the lower cavity. The one-way inlet valve and the one-way outlet valve are also provided between the top of the sliding cylinder and the upper cavity. The upper one-way inlet valve is connected to the bottom of the upper cavity through a suction tube. The sliding cylinder is filled with a non-Newtonian fluid.

[0010] Preferably, a fixing ring is provided on the fan blade, and the fixing rod is detachably connected to the fixing ring.

[0011] Preferably, the fixing rod and the fixing ring are connected by an electromagnet.

[0012] Preferably, the lower end of the fixing ring is provided with a sleeve that cooperates with the fixing rod.

[0013] The beneficial effects of this invention are:

[0014] 1. Compared with the prior art, in the present invention, during the transportation of wind turbine blades, ultrasonic sensors detect obstacles around the wind turbine blades in real time. When the ultrasonic sensors detect obstacles, the ultrasonic sensors control the alarm through the controller to remind the driver to stop the vehicle immediately to avoid damage to the wind turbine blades caused by continuing to move forward.

[0015] 2. Compared with the prior art, in this invention, during the process of the driver adjusting the angle and orientation of the wind turbine blades by controlling the lifting mechanism of the lifting vehicle, the ultrasonic sensor detects obstacles around the wind turbine blades in real time. When the ultrasonic sensor detects an obstacle, the ultrasonic sensor controls the alarm through the controller to issue an alarm to remind the driver to immediately stop the adjustment of the wind turbine blades and adjust the adjustment plan of the wind turbine blades.

[0016] 3. Compared with the prior art, the present invention provides a protective mechanism that allows the fan blades to vibrate slightly up and down when they do so, and uses a non-Newtonian fluid to buffer the vibration. When the fan blades vibrate violently up and down, the protective mechanism prevents them from vibrating violently, thus protecting the fan blades and the ultrasonic sensor and preventing them from being damaged by the violent vibration. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 yes Figure 1 Enlarged view of section A.

[0019] The reference numerals in the accompanying drawings include: 1. Lifting vehicle head, 2. Lifting vehicle platform, 3. Lifting vehicle lifting mechanism, 4. Fan blade, 5. Strap, 6. Ultrasonic sensor, 7. Fixing ring, 8. Fixing rod, 9. Sliding block, 10. Sliding cylinder, 11. Slide groove, 12. Cavity, 13. One-way inlet valve, 14. One-way outlet valve, 15. Alarm, 16. Sleeve. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1:

[0022] A wind turbine blade transport warning device, such as Figure 1 As shown, the device includes obstacle detection sensors mounted on the wind turbine blades 4 via straps 5. The number of obstacle detection sensors is set to 6 groups, which are evenly spaced along the wind turbine blades 4. Each group of obstacle detection sensors includes four sensors, which are respectively located on the top, bottom and sides of the wind turbine blades 4. They are used to detect obstacles on the top, bottom and sides of the wind turbine blades 4. In this embodiment, the obstacle sensor is an ultrasonic sensor 6. The controller is electrically connected to an alarm 15, which is installed in the cab of the lifting vehicle.

[0023] In this embodiment, the wind turbine blades are transported using a lifting vehicle. The lifting vehicle is an existing type and includes a lifting vehicle head 1, a lifting vehicle platform 2, and a lifting vehicle lifting mechanism 3. The wind turbine blades 4 are mounted on the lifting vehicle lifting mechanism 3.

[0024] During the transportation of the wind turbine blade 4, the ultrasonic sensor 6 continuously monitors obstacles around the blade. When the ultrasonic sensor 6 detects an obstacle, it activates the alarm 15 via the controller to alert the driver to immediately stop the vehicle and prevent damage to the blade. Furthermore, the driver adjusts the angle and orientation of the wind turbine blade 4 by controlling the lifting mechanism of the lifting vehicle. During this process, the ultrasonic sensor 6 continues to continuously monitor obstacles around the blade. When it detects an obstacle, it activates the alarm 15 via the controller to alert the driver to immediately stop the adjustment of the blade and adjust the adjustment plan accordingly.

[0025] In this embodiment, as Figure 1As shown, it also includes a protection mechanism, which includes a fixing ring 7 fixed to the outer periphery of the middle part of the fan blade 4. A sleeve 16 is fixed to the lower end of the fixing ring 7. A fixing rod 8 arranged in the vertical direction is connected to the inside of the sleeve 16 through an electromagnet. The upper end of the fixing rod 8 is inserted into the sleeve 16 and cooperates with the sleeve 16, thereby realizing the detachable connection between the fixing rod 8 and the sleeve 16. The electromagnet is electrically connected to the controller, and the controller controls the electromagnet to be energized and de-energized. A sliding groove 11 arranged in the left and right direction is provided on the part of the lifting car plate 2 located below the fixing rod 8. It also includes a sliding cylinder 10 that is slidably connected to the sliding groove 11. The sliding cylinder 10 only It can slide horizontally left and right. The lower end of the fixed rod 8 passes through the top of the sliding cylinder 10 and is hinged to the slider 9. The fixed rod 8 and the sliding cylinder 10 are slidably and sealed together. The slider 9 and the sliding cylinder 10 are slidably and sealed together. Two annular cavities 12 are provided on the side wall of the sliding cylinder 10. A one-way inlet valve 13 and a one-way outlet valve 14 are provided between the bottom of the sliding cylinder 10 and the lower cavity 12. A one-way inlet valve 13 and a one-way outlet valve 14 are also provided between the top of the sliding cylinder 10 and the upper cavity 12. The one-way inlet valve 13 of the upper part is connected to the bottom of the upper cavity 12 through a suction tube. The sliding cylinder 10 is filled with a non-Newtonian fluid.

[0026] Non-Newtonian fluids are liquids under normal conditions, but they become solids when subjected to a sudden impact force, and then return to being liquids after a period of time.

[0027] During normal travel, the fixed rod 8 and sleeve 16 cooperate. If a slight downward vibration is generated, the non-Newtonian fluid is a liquid. The fan blade 4 drives the sleeve 16, fixed rod 8 and slider 9 to vibrate slowly downward through the fixed ring 7. The lower one-way inlet valve 13 is closed and the lower one-way outlet valve 14 is opened. The non-Newtonian fluid inside the sliding cylinder 10 located below the slider 9 is squeezed into the lower cavity 12 by the slider 9. At the same time, the upper one-way inlet valve 13 is opened and the upper one-way outlet valve 14 is closed. The part of the sliding cylinder 10 located above the slider 9 is sucked into the upper cavity 12 of the non-Newtonian fluid.

[0028] If a slight upward vibration is generated, the non-Newtonian fluid is a liquid. The fan blade 4 drives the sleeve 16, the fixed rod 8, and the slider 9 to vibrate slowly upward through the fixed ring 7. The upper one-way inlet valve 13 is closed, and the upper one-way outlet valve 14 is opened. The slider 9 squeezes the non-Newtonian fluid in the part of the sliding cylinder 10 located above the slider 9 into the upper cavity 12. At the same time, the lower one-way inlet valve 13 is opened, and the lower one-way outlet valve 14 is closed. The part of the sliding cylinder 10 located below the slider 9 draws in the non-Newtonian fluid in the lower cavity 12. The slider 9 can slide up and down smoothly, and the non-Newtonian fluid plays a buffering role.

[0029] In this embodiment, the purpose of setting the sliding cylinder 10 to slide left and right and hinged the fixed rod 8 to the slider 9 is that during the up and down vibration of the fan blade 4, the angle of the fixed ring 7 will change, and the projection position of the fixed ring 7 on the lifting vehicle plate 2 will move left and right. The fixed rod 8 is hinged to the slider 9 and the sliding cylinder 10 can slide, ensuring that the fan blade 4 can vibrate slightly.

[0030] If a violent downward vibration occurs, at the instant the fan blade 4 suddenly vibrates downward, the fan blade 4, through the fixing ring 7, drives the sleeve 16, fixing rod 8, and slider 9 to vibrate rapidly downward. The non-Newtonian fluid inside the sliding cylinder 10, located below the slider 9, is suddenly impacted and solidifies, preventing the slider 9 from sliding downward. Similarly, at the instant the fan blade 4 suddenly vibrates upward, the fan blade 4, through the fixing ring 7, drives the sleeve 16, fixing rod 8, and slider 9 to vibrate rapidly upward. The non-Newtonian fluid inside the sliding cylinder 10, located above the slider 9, is suddenly impacted and solidifies, preventing the slider 9 from sliding upward. This achieves vibration damping, thus protecting the fan blade 4 and the ultrasonic sensor 6 from damage due to violent vibration. After a period of time, the non-Newtonian fluid reverts to a liquid state.

[0031] The purpose of setting up the electromagnet is to separate the fixing rod 8 from the sleeve 16 when the fan blades need to be adjusted in four directions, so as to facilitate the adjustment. After the adjustment is completed, the fixing rod 8 and the sleeve 16 can be connected together again.

[0032] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of protection of the claims.

Claims

1. A warning device for transporting wind turbine blades, characterized in that: It includes an obstacle detection sensor installed on the wind turbine blades, the obstacle detection sensor being electrically connected to an alarm via a controller, the alarm being installed in the cab of the lifting vehicle; The number of obstacle detection sensors is set to multiple groups, which are evenly distributed along the extension direction of the wind turbine blades; Each set of obstacle detection sensors includes at least four, which are respectively installed at the top, bottom and sides of the wind turbine blades; It also includes a protection mechanism, which includes a fixed rod arranged vertically at the lower end of the middle of the wind turbine blade. A sliding cylinder is slidably connected to the part of the lifting vehicle plate located below the fixed rod. The sliding cylinder can only slide horizontally. The lower end of the fixed rod passes through the top of the sliding cylinder and is hinged to a slider. The fixed rod and the sliding cylinder are slidably and sealingly connected. The slider and the sliding cylinder are slidably and sealingly connected. The side wall of the sliding cylinder is provided with two annular cavities, one at the bottom and one at the bottom of the sliding cylinder. A one-way inlet valve and a one-way outlet valve are provided between the bottom of the sliding cylinder and the lower cavity. The one-way inlet valve and the one-way outlet valve are also provided between the top of the sliding cylinder and the upper cavity. The one-way inlet valve of the upper cavity is connected to the bottom of the upper cavity through a suction tube. The sliding cylinder is filled with a non-Newtonian fluid. The fan blades are equipped with a fixing ring, and the fixing rod is detachably connected to the fixing ring; The fixing rod and the fixing ring are connected by an electromagnet; The lower end of the fixing ring is provided with a sleeve that cooperates with the fixing rod.

2. The wind turbine blade transport warning device according to claim 1, characterized in that: The obstacle detection sensor is an ultrasonic sensor.

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