Fan blade transportation warning device

Abstract

The invention discloses a fan blade transportation warning device which comprises an obstacle detection sensor installed on a fan blade, 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 transportation process of the fan blades, the ultrasonic sensor detects obstacles around the fan blades in real time, and when the ultrasonic sensor detects the obstacles, the ultrasonic sensor controls the alarm to give an alarm through the controller to remind a driver to stop the vehicle immediately, so that damage to the fan blades caused by continuous advancing is avoided.

Description

Technical Field

[0001] The invention relates to a wind turbine blade transportation warning device, belonging to the technical field of wind turbine transportation. Background Art

[0002] As a clean and renewable energy, wind energy is gaining more and more attention from countries around the world. It has a huge reserve. The global wind energy is about 2.74×109MW, of which 2×107MW is exploitable, which is 10 times greater than the total amount of exploitable water energy on Earth. China has a large wind energy reserve and a wide distribution area. The wind energy reserve on land alone is about 253 million kilowatts.

[0003] Wind turbines are usually installed in windy locations on the top of a mountain. Due to the large size of wind turbines, for example, the length of a wind turbine blade is as long as 97.3 meters, so the wind turbine blades, wind turbine tower and other components need to be disassembled and transported to the site for installation. The wind turbine blades are usually transported by a lifting vehicle. During the transportation of the wind turbine blades by the lifting vehicle, the tail of the wind turbine blades is tilted upwards. During transportation, the wind turbine blades are easily damaged by obstacles in the air such as signs, wires, 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 above-mentioned prior art.

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

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

[0007] Preferably, each group of obstacle detection sensors includes at least four sensors, which are respectively arranged on the top, bottom and both sides of the fan blade.

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

[0009] Preferably, a protection mechanism is also included, which includes a fixed rod arranged in a vertical direction at the lower end of the middle part of the fan blade, a sliding cylinder is slidably connected to the part of the lifting vehicle plate below the fixed rod, and the sliding cylinder can only slide horizontally, and the lower end of the fixed rod passes through the top of the sliding cylinder and is hinged with a slider, the fixed rod is slidably and sealedly connected to the sliding cylinder, the slider is slidably and sealedly connected to the sliding cylinder, and two upper and lower annular cavities are provided on the side wall 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 upper one-way inlet valve is connected to the bottom of the upper cavity through a straw, and the interior of 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 is connected to the fixing ring via an electromagnet.

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

[0013] Beneficial effects of the present invention: 1. Compared with the prior art, in the present invention, during the transportation of the fan blades, the ultrasonic sensor detects obstacles around the fan blades in real time. When the ultrasonic sensor detects an obstacle, the ultrasonic sensor controls the alarm through the controller to sound an alarm to remind the driver to stop the car immediately to avoid continuing to move forward and causing damage to the fan blades.

[0014] 2. Compared with the prior art, in the present invention, while the driver controls the lifting mechanism of the lifting vehicle to adjust the angle and orientation of the fan blades, the ultrasonic sensor detects obstacles around the fan blades in real time. When the ultrasonic sensor detects an obstacle, the ultrasonic sensor controls the alarm through the controller to sound an alarm to remind the driver, immediately stop adjusting the fan blades and adjust the adjustment plan of the fan blades.

[0015] 3. Compared with the prior art, the present invention provides a protection mechanism. When the fan blades vibrate slightly up and down, the protection mechanism allows the fan blades to vibrate slightly up and down, and acts as a buffer through the non-Newtonian fluid. When the fan blades vibrate violently up and down, the protection mechanism prevents the fan blades from vibrating violently up and down, thereby protecting the fan blades and the ultrasonic sensor, and preventing the fan blades and the ultrasonic sensor from being damaged due to violent vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0018] The figure marks in the drawings of the specification include: lifting vehicle head 1, lifting vehicle plate 2, lifting vehicle lifting mechanism 3, fan blades 4, straps 5, ultrasonic sensors 6, fixing rings 7, fixing rods 8, sliders 9, sliding cylinders 10, slide grooves 11, cavities 12, one-way inlet valves 13, one-way outlet valves 14, alarms 15, and sleeves 16. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Embodiment 1: A wind turbine blade transport warning device, such as Figure 1 As shown, it includes obstacle detection sensors installed on the fan blades 4 through straps 5. The number of obstacle detection sensors is set to 6 groups, which are evenly spaced along the fan blades 4. Each group of obstacle detection sensors includes four sensors, which are respectively arranged at the top, bottom and both sides of the fan blades 4 to detect obstacles on the top, bottom and both sides of the fan blades 4. The obstacle sensor in this embodiment is an ultrasonic sensor 6. The controller is electrically connected to an alarm 15, and the alarm 15 is installed in the cab of the lifting vehicle.

[0021] In this embodiment, the fan blades are transported by a lifting vehicle. The lifting vehicle is an existing one. The lifting vehicle includes a lifting vehicle head 1, a lifting vehicle plate 2 and a lifting vehicle lifting mechanism 3. The fan blades 4 are installed on the lifting vehicle lifting mechanism 3.

[0022] During the transportation of the fan blades 4, the ultrasonic sensor 6 detects obstacles around the fan blades 4 in real time. When the ultrasonic sensor 6 detects an obstacle, the ultrasonic sensor 6 controls the alarm 15 through the controller to sound an alarm to remind the driver to stop the vehicle immediately to avoid damage to the fan blades 4 caused by continuing to move forward. In addition, the driver adjusts the angle and orientation of the fan blades 4 by controlling the lifting mechanism of the lifting vehicle. During this process, the ultrasonic sensor 6 continues to detect obstacles around the fan blades 4 in real time. When the ultrasonic sensor 6 detects an obstacle, the ultrasonic sensor 6 controls the alarm 15 through the controller to sound an alarm to remind the driver to immediately stop adjusting the fan blades 4 and adjust the adjustment plan of the fan blades 4.

[0023] In this embodiment, 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, and a fixing rod 8 arranged in the vertical direction is connected to the inside of the sleeve 16 through an electromagnet, and the upper end of the fixing rod 8 is inserted into the sleeve 16 and cooperates with the sleeve 16, so as to realize the detachable connection between the fixing rod 8 and the sleeve 16; the electromagnet is electrically connected to the controller, and the electromagnet is powered on and off by the controller; a slide groove 11 arranged in the left and right direction is provided on the part of the lifting vehicle plate 2 located below the fixing rod 8, and also includes a sliding cylinder 10 slidably connected to the slide groove 11, and the sliding cylinder 10 is 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 with a slider 9. The fixed rod 8 is connected to the sliding cylinder 10 in a sliding and sealing manner. The slider 9 is connected to the sliding cylinder 10 in a sliding and sealing manner. Two upper and lower annular cavities 12 are arranged on the side wall of the sliding cylinder 10. A one-way inlet valve 13 and a one-way outlet valve 14 are arranged 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 arranged between the top of the sliding cylinder 10 and the upper cavity 12. The upper one-way inlet valve 13 is connected to the bottom of the upper cavity 12 through a straw, and the interior of the sliding cylinder 10 is filled with a non-Newtonian fluid.

[0024] Non-Newtonian fluids are liquids under normal conditions, but they become solid when subjected to sudden impact force, and then return to liquid after a period of time.

[0025] During normal movement, the fixing rod 8 cooperates with the sleeve 16. If a slight downward vibration is generated, the non-Newtonian fluid is a liquid, and the fan blade 4 drives the sleeve 16, the fixing rod 8 and the slider 9 to vibrate slowly downward through the fixing 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 located below the slider 9 in the sliding cylinder 10 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, and the part of the sliding cylinder 10 located above the slider 9 sucks the non-Newtonian fluid in the upper cavity 12; If a slight upward vibration is generated, the non-Newtonian fluid is a liquid, and the fan blades 4 drive the sleeve 16, the fixing rod 8 and the slider 9 to vibrate slowly upward through the fixing ring 7, the upper one-way inlet valve 13 is closed, the upper one-way outlet valve 14 is opened, and 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, the lower one-way outlet valve 14 is closed, and the part of the sliding cylinder 10 located below the slider 9 sucks 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.

[0026] In this embodiment, the sliding cylinder 10 is set to slide left and right and the fixing rod 8 is hinged to the slider 9 for the following purposes: during the up and down vibration of the fan blades 4, the angle of the fixing ring 7 will change, and the projection position of the fixing ring 7 on the lifting vehicle plate 2 will move left and right. The fixing rod 8 is hinged to the slider 9 and the sliding cylinder 10 can slide, ensuring that the fan blades 4 can vibrate slightly.

[0027] If a violent downward vibration is generated, at the moment when the fan blade 4 suddenly vibrates downward, the fan blade 4 drives the sleeve 16, the fixed rod 8 and the slider 9 to vibrate downward rapidly through the fixing ring 7, and the non-Newtonian fluid located below the slider 9 in the sliding cylinder 10 is subjected to the sudden impact force and becomes a solid to prevent the slider 9 from sliding downward. Similarly, at the moment when the fan blade 4 suddenly vibrates upward, the fan blade 4 drives the sleeve 16, the fixed rod 8 and the slider 9 to vibrate upward rapidly through the fixing ring 7, and the non-Newtonian fluid located above the slider 9 in the sliding cylinder 10 is subjected to the sudden impact force and becomes a solid to prevent the slider 9 from sliding upward, thereby achieving the effect of vibration reduction, thereby protecting the fan blade 4 and the ultrasonic sensor 6, and preventing the fan blade 4 and the ultrasonic sensor 6 from being damaged by violent vibration. After a period of time, the non-Newtonian fluid returns to liquid.

[0028] The purpose of setting the electromagnet is: when the fan blade 4 needs to be adjusted in position, the fixing rod 8 is separated from the sleeve 16 to facilitate adjustment, and the fixing rod 8 and the sleeve 16 are connected together after the adjustment.

[0029] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A wind turbine blade transport warning device, characterized in that: It comprises an obstacle detection sensor installed on the fan blade, the obstacle detection sensor is electrically connected to an alarm through a controller, and the alarm is installed in the cab of the lifting vehicle.

2. A wind turbine blade transport warning device according to claim 1, characterized in that: The number of obstacle detection sensors is set to multiple groups, which are evenly arranged along the extension direction of the fan blades.

3. A wind turbine blade transport warning device according to claim 2, characterized in that: Each group of obstacle detection sensors includes at least four sensors, which are respectively arranged on the top, bottom and both sides of the fan blades.

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

5. A wind turbine blade transport warning device according to claim 1, characterized in that: The utility model also includes a protection mechanism, which includes a fixing rod arranged in a vertical direction at the lower middle end of the fan blade, a sliding cylinder is slidably connected to the part of the lifting vehicle plate below the fixing rod, and the sliding cylinder can only slide horizontally, and the lower end of the fixing rod passes through the top of the sliding cylinder and is hinged with a slider, the fixing rod is slidably and sealedly connected to the sliding cylinder, the slider is slidably and sealedly connected to the sliding cylinder, and two upper and lower annular cavities are arranged on the side wall of the sliding cylinder, a one-way inlet valve and a one-way outlet valve are arranged between the bottom of the sliding cylinder and the lower cavity, the one-way inlet valve and the one-way outlet valve are also arranged 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 straw, and the interior of the sliding cylinder is filled with a non-Newtonian fluid.

6. A wind turbine blade transport warning device according to claim 5, characterized in that: A fixing ring is arranged on the fan blade, and the fixing rod is detachably connected to the fixing ring.

7. A wind turbine blade transport warning device according to claim 6, characterized in that: The fixing rod is connected to the fixing ring through an electromagnet.

8. A wind turbine blade transport warning device according to claim 7, characterized in that: The lower end of the fixing ring is provided with a sleeve which cooperates with the fixing rod.

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