Power transmission line deicing device and deicing method

Abstract

The invention discloses a power transmission line deicing device and a deicing method. The power transmission line deicing device mainly comprises an unmanned aerial vehicle, a camera is installed on the outer side of the unmanned aerial vehicle, an end cylinder is installed below the unmanned aerial vehicle, limiting mechanisms are symmetrically arranged on the left side and the right side of the end cylinder, the limiting mechanisms form an encirclement ring for a cable, a knocking assembly is installed in the end cylinder, and ice covering on the cable is removed through the knocking assembly. According to the power transmission line deicing device and deicing method provided by the invention, the deicing effect can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a deicing device, in particular a power transmission line deicing device and a deicing method. BACKGROUND

[0002] The deicing technology of unmanned aerial vehicles integrates knowledge and innovation from multiple key fields. First, the rapid development of unmanned aerial vehicle technology provides a solid foundation for this field, and the reliable performance of various unmanned aerial vehicles in harsh weather and low temperature environments makes them ideal choices for task execution. Second, ice and snow science provides the necessary theoretical basis for unmanned aerial vehicle deicing technology, understanding the characteristics, distribution, and evolution patterns of ice is crucial for developing effective deicing strategies, and geographic information systems and remote sensing technology help obtain accurate data on ice and snow coverage.

[0003] The traditional deicing method may have the following defects: 1) it may cause unnecessary damage to the line; 2) the deicing efficiency is low; 3) the impact force on the ice cannot be flexibly changed. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a power transmission line deicing device and a deicing method that can better and more efficiently deice.

[0005] To solve the above technical problems, the technical solution adopted by the present application is: A power transmission line deicing device, comprising an unmanned aerial vehicle, a camera installed on the outer side of the unmanned aerial vehicle, an end cylinder installed below the unmanned aerial vehicle, a limiting mechanism symmetrically arranged on the left and right of the end cylinder, the limiting mechanism forming an encircling ring around the cable, a knocking assembly installed in the end cylinder, and the knocking assembly removing the ice on the cable.

[0006] The limiting mechanism comprises a clamping ring and a side plate, the clamping ring and the side plate are integrally formed, the connection between the clamping ring and the side plate is rotatably connected with a central shaft on the end cylinder, the end away from the hinge point of the side plate is provided with a first spring and a magnetic block, the other end of the first spring is connected with the end cylinder, and the magnetic block corresponds to an electromagnet on the end cylinder; when the electromagnet is not powered, the left and right clamping rings are closed; when the electromagnet is powered, the left and right clamping rings are opened.

[0007] The knocking assembly comprises a cam, the cam is rotatably installed in a sleeve and driven by a servo motor, a ice-breaking hammer is slidably arranged on the sleeve at the lower end of the cam, the lower part of the ice-breaking hammer extends out of the sleeve, a second spring is sleeved on the upper part of the ice-breaking hammer, and the top end of the ice-breaking hammer is in contact with the cam through a roller.

[0008] The lower part of the ice-breaking hammer is provided with a striking blade.

[0009] The hammer head and the hammer rod of the ice-breaking hammer adopt a split type structure.

[0010] The hammer head is made of high carbon steel or tungsten steel.

[0011] A power line deicing method, comprising the following steps: Step 1), moving the unmanned aerial vehicle above the cable by remote control according to the scene observed by the camera; Step 2), when the unmanned aerial vehicle moves above the cable, the electromagnet is started, causing the magnetic block and the side plate to be attracted to one end of the electromagnet, while the first spring is compressed and the two clamps are opened to both sides; At this time, the cable is made to fall into the middle area of the two clamps by controlling the unmanned aerial vehicle. At this time, the electromagnet is powered off, and the two clamps form a closed loop; Step 3), then remove the ice on the cable at this point by starting the knocking assembly; Step 4), this state can be maintained, while removing the ice on the cable by the knocking assembly, the unmanned aerial vehicle is moved to fly along the direction of the cable, thereby removing the ice on the entire cable.

[0012] The present application provides a power line deicing device and method, which has the following technical effects: 1), innovation: ①The device uses a combination of cam mechanisms and limiting mechanisms to break and remove ice during walking. By changing the size of the cam, the ice breaking force can be changed. ②The device can be equipped with various specifications of cams and hammer heads to adapt to different wire diameters and ice thicknesses. ③Lithium batteries are used for power supply, which is light in quality and long in power supply time, and can work continuously for more than one hour.

[0013] 2), high efficiency: Mechanical deicing technology is known for its outstanding efficiency. It can quickly and effectively remove ice and snow coverage in a short time, restoring the normal working state of equipment or surfaces. This is particularly important in emergency situations where quick recovery operations are required.

[0014] 3), environmental protection: Mechanical deicing is a technology based on physical principles and does not rely on chemicals. Unlike the use of chemical deicing agents, mechanical deicing does not produce harmful chemical waste and does not pollute the environment, meeting modern environmental standards.

[0015] 4), versatility: Mechanical deicing technology can be applied to a wide range of equipment and surfaces. It is suitable for ice and snow removal on aircraft, vehicles, trains and other transportation tools, as well as for the maintenance of power lines, building roofs, bridges and other infrastructure. This versatility makes it widely used in multiple fields.

[0016] 5), easy to operate: operating mechanical deicing equipment is relatively easy, and only basic training is required to master the relevant skills. This reduces the training cost and learning curve of the operator, improving the feasibility of operation.

[0017] 6)Low maintenance cost: Mechanical de-icing equipment is generally relatively easy to maintain and maintain. Compared with other technologies, they do not require complex chemicals or professional equipment, and the maintenance cost is low, which helps to reduce the overall operating cost of the equipment.

[0018] 7)Adapt to different climate conditions: Mechanical de-icing technology can perform well in various climate conditions. Whether in extremely cold cold climate or in warm climate conditions, mechanical de-icing can work effectively. This adaptability makes it more reliable in different regions and seasons.

[0019] 8)Apply cam mechanism to de-icing field, because cam mechanism can accurately control the movement trajectory and speed of push rod, so it can more accurately apply force to ice layer and avoid unnecessary damage to surrounding structures.

[0020] 9)Apply cam mechanism to de-icing field, cam mechanism can provide stronger single-point impact force, which can more effectively break thicker or harder ice layer and improve de-icing efficiency.

[0021] 10)Apply cam mechanism to de-icing field, cam mechanism de-icing can adjust the design and parameters of push rod according to actual situation, suitable for different shapes and thickness of ice layer, more flexible.

[0022] 11)Compared with vibration de-icing, applying cam mechanism to de-icing field, cam mechanism de-icing may have lower energy consumption, which can save energy and reduce operating cost.

[0023] 12)For different regions and different climate environments, the thickness and hardness of cable icing are different, different cams can be replaced to realize different impact load and impact stress. BRIEF DESCRIPTION OF DRAWINGS

[0024] The application will be further described below in combination with the drawings and examples: Figure 1 It is a schematic diagram of the overall structure of the application.

[0025] Figure 2 It is a schematic diagram of the internal structure of the end cylinder in the application.

[0026] Figure 3 It is a front view of the cam mechanism in the application.

[0027] Figure 4 It is a front view of the limiting mechanism in the application.

[0028] In the diagram: Drone 1, Camera 2, End tube 3, Cam 301, Second spring 302, Icebreaker 303, Limiting mechanism 4, Snap ring 401, Side plate 402, First spring 403, Electromagnet 404, Central shaft 405, Magnetic block 406, Cable 5. Detailed Implementation

[0029] like Figures 1-2 As shown, a power transmission line de-icing device includes a drone 1, cameras 2 mounted on both sides of the drone 1, and an end cylinder 3 fixedly mounted below the drone 1. The end cylinder 3 has symmetrically arranged limiting mechanisms 4 on its left and right sides. During de-icing, the limiting mechanisms 4 surround the cable 5, limiting the working point of the device for more precise de-icing. A striking component is installed inside the end cylinder 3 to remove ice from the cable 5.

[0030] like Figure 4 As shown, the limiting mechanism 4 includes a retaining ring 401 and a side plate 402. The retaining ring 401 and the side plate 402 are integrally formed, and the connection between the retaining ring 401 and the side plate 402 is rotatably connected to the central axis 405 of the end cylinder 3. This allows the entire assembly of the retaining ring 401 and the side plate 402 to rotate around the central axis. The side plate 402 is connected to the side wall of the end cylinder 3 by a first spring 403. Under normal circumstances, the side plate 402 is pushed outward by the first spring 403, thus closing the retaining rings 401 on the lower left and right sides. To allow the left and right retaining rings 401 to open when needed, a magnetic block 406 is provided on the inner side of the side plate 402, and an electromagnet 404 is provided on the side wall of the end cylinder 3. The positions of the magnetic block 406 and the electromagnet 404 correspond.

[0031] Initially, the first spring 403 experiences minimal compression, causing the side plate 402 to expand outwards and the retaining rings 401 to close, resulting in a locked state. During operation, the electromagnet 404 is energized, attracting the magnetic block 406 to it. At this point, the two retaining rings 402 open, allowing the cable 5 to be inserted. Subsequently, the electromagnet 404 is de-energized, and the two retaining rings 402 close again.

[0032] like Figure 3As shown, the knocking assembly includes a cam 301, which is installed in a proper position in the sleeve 3 and is driven to rotate by a servo motor. The lower end of the sleeve 3 is slidingly installed with an ice hammer 303 through a linear bearing, and the ice hammer 303 can slide up and down. The part of the ice hammer 303 located in the sleeve 3 is sleeved with a second spring 302, and the top end of the ice hammer 303 is installed with a roller, which can keep in contact with the cam 301 at all times through the action of the second spring 302. When the cam 301 rotates, the ice hammer 303 moves up and down reciprocatingly. The lower end of the ice hammer 303 is located outside the sleeve 3 and can act on the ice layer to knock. This setting avoids the situation that the knocking strength is too large due to the too fast frequency of the servo motor, thereby damaging the cable 5, and can keep the fixed knocking frequency and good ice removal effect.

[0033] Specifically, when considering the contact form and breaking mode of the ice hammer and the ice surface, no matter what form of hammer head is adopted, the contact form of the hammer head and the ice surface is only three: point, line and surface. According to the stress formula: G=F / A. Under the condition that the required striking stress for breaking ice is certain: the contact area of point contact is the smallest. The required striking force is small, and the area of the ice surface subjected to the strike is also small. Under the condition that the number of strikes in unit time is certain. The area of the ice surface broken is also the smallest. Therefore, the operation efficiency is low, and the contact point is easy to wear. The breaking mode of surface contact is equivalent to crushing. The required striking force is large. The power is large, and the structure size of the force receiving member is increased. Thus, the manufacturing cost is high, and the economy is poor. The line contact is between the two. It has certain wear resistance and high operation efficiency. Therefore, the striking blade is arranged at the lower part of the ice hammer 303 to realize line contact, and the splitting and impact breaking mode of the striking blade to the ice surface is a relatively good striking contact type.

[0034] Preferably, the hammer head and the hammer rod of the ice hammer 303 are designed in a split structure and are made of different materials. For example, the hammer head of the ice hammer 303 is made of high-carbon steel or tungsten steel, which can improve the wear resistance and cutting efficiency of the cutting edge. The hammer rod can be made of other inexpensive materials. In this way, the alloy material of the hammer head is saved, the cost is reduced, and the improvement of the structure form and geometric parameters of the hammer head is facilitated.

[0035] Preferably, the angle between the cutting edge of the hammer head and the cable 5 is usually between 15 degrees and 30 degrees when chipping ice, but when the ice layer on the cable belongs to a relatively thin ice layer, the angle is selected to be 15 degrees to 20 degrees. Smaller angle can produce a sharper blade, which is suitable for fine cutting control occasions, and will not damage the cable 5.

[0036] Preferably, the cam 301 adopts a disc-type cam, with advantages of compactness, easy replacement, and different shapes of cams corresponding to different impact forces, so that different thicknesses of ice can be broken. For different regions and different climates, the thickness and hardness of cable icing also differ, and different cams can be replaced to achieve different impact loads and impact stresses.

[0037] Generally speaking, the diameter of the ice-covered cable may increase by about 10% to 30%, and it is recommended that the diameter of the ring be about 20%-60% larger than the diameter of the cable.

[0038] The following benefits are provided by the ring surrounding the relative clamping method: 1. Increased stability: By surrounding the cable with a ring, the stability of clamping can be increased, preventing the cable from shaking or falling off during clamping, ensuring that the clamping effect is more reliable.

[0039] 2. Reduced damage: The ring can provide uniform pressure distribution, reducing local pressure on the surface of the cable and avoiding damage or scratches on the surface of the cable, prolonging the service life of the cable.

[0040] 3. Easy operation: The ring can make clamping operation more convenient and fast, avoiding inaccurate clamping or clamping that is not firm, and improving work efficiency.

[0041] 4. Improved safety: The clamping method with a ring surrounding can reduce the risk of accidental falling or sliding, improve safety during operation, and reduce the likelihood of injury to workers.

[0042] A power transmission line deicing method, comprising the following steps: Step 1), according to the scene observed by the camera, the unmanned aerial vehicle 1 is moved above the cable 5 by remote control.

[0043] Step 2), when the unmanned aerial vehicle 1 moves above the cable 5, the electromagnet 404 is started, causing the magnetic block 406 and the side plate 402 to be attracted to one end of the electromagnet 404, while the first spring 403 is compressed, and the two clamping rings 401 are opened to both sides. At this time, the cable 5 is made to fall into the middle area of the two clamping rings 401 by controlling the unmanned aerial vehicle 1. At this time, the electromagnet 404 needs to be powered off to form a closed loop with the two clamping rings 401.

[0044] Step 3), then the ice covering the cable 5 at that position is removed by starting the knocking assembly.

[0045] Step 4), the state can be maintained, and the ice covering the cable 5 is removed by the knocking assembly while the unmanned aerial vehicle 1 flies along the direction of the cable 5, thereby removing the ice covering the entire cable 5.

Claims

1. A de-icing device for power transmission lines, characterized in that: The device includes a drone (1), a camera (2) installed on the outside of the drone (1), an end tube (3) installed below the drone (1), a limiting mechanism (4) symmetrically arranged on the left and right sides of the end tube (3), the limiting mechanism (4) forming a ring around the cable (5), and a striking component installed inside the end tube (3) to remove ice from the cable (5).

2. The de-icing device for transmission lines according to claim 1, characterized in that: The limiting mechanism (4) includes a retaining ring (401), which is integral with the side plate (402); the connection between the retaining ring (401) and the side plate (402) is rotatably connected to the central shaft (405) on the end cylinder (3); the side plate (402) is provided with a first spring (403) and a magnetic block (406) at one end away from the hinge point, the other end of the first spring (403) is connected to the end cylinder (3), and the magnetic block (406) corresponds to the electromagnet (404) on the end cylinder (3); when the electromagnet (404) is not energized, the left and right retaining rings (401) are closed; when the electromagnet (404) is energized, the left and right retaining rings (401) are open.

3. The de-icing device for transmission lines according to claim 1, characterized in that: The striking assembly includes a cam (301), which is rotatably mounted in a sleeve (3) and driven by a servo motor. An icebreaker (303) is slidably mounted on the sleeve (3) at the lower end of the cam (301). The lower part of the icebreaker (303) extends out of the sleeve (3), and a second spring (302) is fitted on the upper part of the icebreaker (303). The top of the icebreaker (303) contacts the cam (301) through a roller.

4. The de-icing device for transmission lines according to claim 3, characterized in that: The ice-breaking hammer (303) is provided with a striking blade at the lower part.

5. A de-icing device for transmission lines according to claim 3, characterized in that: The icebreaker hammer (303) has a split structure for the hammer head and hammer shaft.

6. A de-icing device for transmission lines according to claim 5, characterized in that: The hammerhead is made of high-carbon steel or tungsten steel.

7. A method for de-icing a transmission line using a de-icing device according to claim 6, comprising the following steps: Step 1) Based on the scene observed by the camera, remotely control the drone (1) to move above the cable (5); Step 2) When the drone (1) moves above the cable (5), the electromagnet (404) is activated, causing the magnetic block (406) and the side plate (402) to be attracted to one end of the electromagnet (404). At the same time, the first spring (403) is compressed, and the two retaining rings (401) open to both sides. At this time, the drone (1) is controlled to make the cable (5) fall into the middle area of ​​the two retaining rings (401). At this time, the electromagnet (404) is de-energized, so that the two retaining rings (401) form a closed loop. Step 3) Then, by activating the tapping component, clear the ice from that spot on the cable (5); Step 4) While maintaining this state, the ice covering the cable (5) is cleared by tapping the components, and the entire cable (5) is cleared of ice by moving the drone (1) along the direction of the cable (5).

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