An ice melting device for grounding electrode lead of ultra-high voltage direct current transmission system

Abstract

The present invention discloses an ice melting device for a grounding electrode lead of an ultra-high voltage direct current transmission system, which relates to the technical field of high voltage cable deicing, and includes a cable and a support frame, and is characterized in that it also includes a connecting rod fixedly mounted on the support frame, and a vertical plate is rotatably mounted on the connecting rod. The advantages are: the present invention utilizes the rotation speed of motor 2 to change the pressure between the scraper and the ice, so as to remove ice of different hardness without causing damage to the cable, and at the same time, the friction heat generated by the rotation between the incomplete friction plate and the incomplete friction sleeve can be utilized to remove the ice in the cable gap and dry the cable, so that the ice removal is more thorough and the probability of the cable being re-iced is reduced. In addition, the cable can be vibrated to de-ice, and the ice removal efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of high-voltage cable deicing, and in particular to an ice melting device for a grounding electrode lead of an ultra-high voltage direct current transmission system. Background Art

[0002] The grounding electrode lead of the ultra-high voltage direct current transmission system connects the grounding part of the electrical device to the grounding electrode to ensure a stable electrical connection between the electrical device and the earth. In plateau areas and cold regions, the grounding wire is often covered with ice, which can have a serious impact on the transmission line and may cause line breakage, short circuit and other problems, thereby affecting the power supply. Therefore, the grounding wire needs to be de-iced regularly.

[0003] The currently adopted ice melting method is to melt the ice by powering on, which is to apply voltage to the ground wire and use the heat generated by the resistance of the ground wire to melt the ice. This method consumes a lot of electric energy. Therefore, the publication number CN115207862B discloses a deicing operation device for overhead lines of a distribution network, which includes a moving mechanism placed on the overhead line, a deicing mechanism is connected to the right end of the moving mechanism, and a cutting mechanism is installed at the right lower end of the deicing mechanism; the moving mechanism includes a U-shaped frame placed on the overhead line with an opening facing downward, a middle section of the U-shaped frame is rotatably connected to a driving wheel, front and rear side walls of the U-shaped frame are connected to clamping units, a feeding unit is installed at the right end of the U-shaped frame, and two telescopic rods are symmetrically installed at the right ends of the front and rear side walls of the U-shaped frame.

[0004] The device uses an ice scraper to scrape off the ice on the cable, and then uses a cleaning branch chain to clean the remaining broken ice on the cable to avoid re-icing, which can effectively reduce the energy consumption of ice melting. However, when the device is used in practice, due to the uneven surface of the cable, the ice in the cable gap cannot be scraped off during scraping, and it cannot be cleaned by the cleaning branch chain. Secondly, simply scraping the ice on the cable with an ice scraper has low scraping efficiency. The amount scraped each time is the amount of ice within the reach of the ice scraper, and the scraping capacity is limited.

[0005] Therefore, a novel ice melting device for grounding electrode lead of ultra-high voltage direct current transmission system can be used to solve the shortcomings of the prior art. Summary of the invention

[0006] The purpose of the present invention is to solve the problems existing in the prior art and to propose an ice melting device for a grounding electrode lead of an ultra-high voltage direct current transmission system.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An ice melting device for a grounding electrode lead of an ultra-high voltage direct current transmission system comprises a cable and a support frame, and also comprises a connecting rod fixedly mounted on the support frame, and a vertical plate is rotatably mounted on the connecting rod;

[0009] A moving part is installed on the support frame, used to drive the whole device to be installed on the cable and move on the cable, the moving part includes an aircraft fixedly installed on the top of the support frame, a moving component matched with the cable is installed on the support frame, and a balancing component is installed on the support frame;

[0010] A cleaning part is installed on the vertical plate, and the cleaning part includes a scraping component, an ice melting component and a vibration component. A linkage component is installed between the scraping component and the vertical plate. The scraping component is used to scrape ice on the cable, the ice melting component is used to melt and remove ice on the cable that has not been scraped off, and the vibration component is used to knock and vibrate the cable to speed up the removal of ice on the cable.

[0011] Preferably, the moving component includes two driving wheels rotatably mounted on a supporting frame, a sliding plate slidably mounted on the supporting frame, two clamping wheels rotatably mounted on the sliding plate that cooperate with the driving wheels, a motor 1 fixedly mounted on the supporting frame, a driving end of the motor 1 fixedly connected to one of the driving wheels, an electric push rod 1 fixedly mounted on the supporting frame, a telescopic end of the electric push rod 1 fixedly connected to the sliding plate.

[0012] Preferably, the balancing assembly includes a counterweight plate fixedly mounted on the supporting frame, a counterweight block is slidably mounted on the counterweight plate, a second electric push rod is fixedly mounted on the counterweight plate, and the telescopic end of the second electric push rod is fixedly connected to the counterweight block.

[0013] Preferably, the scraping assembly includes a connecting frame fixedly mounted on the vertical plate, an arc-shaped slide rail fixedly mounted on the connecting frame, an arc-shaped slide plate slidably mounted on the arc-shaped slide rail, a plurality of mounting plates fixedly mounted on the arc-shaped slide plate, a plurality of telescopic rods fixedly mounted on each of the mounting plates, a scraper plate matched with a cable being fixedly mounted on the plurality of matched telescopic rods, and a pressure regulating mechanism matched with the corresponding scraper plate being mounted on each of the mounting plates.

[0014] Preferably, the pressure regulating mechanism includes two gear cylinders rotatably mounted on a mounting plate, two tooth plates 2 meshing with corresponding gear cylinders are slidably mounted on the mounting plate, a centrifugal block is fixedly mounted on each of the two tooth plates 2, and two tooth plates 1 meshing with corresponding gear cylinders are fixedly mounted on the scraper.

[0015] Preferably, the linkage assembly includes a second motor fixedly mounted on a supporting frame, a fixing frame fixedly mounted on the vertical plate, two rotating shafts rotatably mounted on the fixing frame, the two rotating shafts are connected by a transmission belt, a gear is fixedly mounted on each of the two rotating shafts, an incomplete gear ring meshing with the two gears is fixedly mounted on the arc-shaped skateboard, and the driving end of the second motor is connected to one of the rotating shafts by a universal coupling.

[0016] Preferably, the horizontal spacing between the two gears is larger than the horizontal spacing between the two ends of the arc-shaped slide rail opening, and the horizontal spacing between the two ends of the arc-shaped slide rail opening is larger than the diameter of the cable.

[0017] Preferably, the ice melting assembly includes an incomplete friction plate fixedly mounted on an arc-shaped slide rail via a second connecting frame, an incomplete friction sleeve is slidably mounted on the incomplete friction plate, the incomplete friction sleeve is fixedly connected to the arc-shaped slide rail via a plurality of connecting rods, a plurality of heat-conducting tubes with one end in a closed state are fixedly mounted on the inner ring of the incomplete friction sleeve, and the plurality of heat-conducting tubes are commonly connected to an outlet shower head.

[0018] Preferably, the vibration assembly includes a bracket fixedly mounted on a mounting plate, a moving rod slidably mounted on the bracket, a limiting plate matched with the bracket fixedly mounted on the moving rod, a circular disc fixedly mounted on the bottom of the moving rod, a spring fixedly mounted between the circular disc and the bracket, a frame body installed on the bottom of the circular disc through a length adjustment mechanism, a pressure wheel matched with a cable is rotatably mounted on the frame body, two limiting sliding columns are fixedly mounted on the frame body, the two limiting sliding columns and the bracket are slidably connected, an arc plate is fixedly mounted on the top of the moving rod, and a pressure roller matched with the arc plate is rotatably mounted on the connecting frame 2.

[0019] Preferably, the length adjustment mechanism includes a screw rod fixedly mounted on a circular disk, a nut is threadedly rotatably mounted on the screw rod, a connecting disk is fixedly mounted on the nut, a plurality of pillars are fixedly mounted on the connecting disk, a rotating disk is commonly fixedly mounted on the plurality of pillars, and the rotating disk is rotatably connected to the frame.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. When removing ice, the grounding electrode lead de-icing device of the ultra-high voltage direct current transmission system grinds and scrapes the ice on the cable by setting a rotatable scraper to crush the ice, thereby reducing the probability of large pieces of ice falling during ice removal, and having higher safety. At the same time, the centrifugal force of the centrifugal block is changed by controlling the rotation speed of the motor one, and the use of the tooth plate one, the tooth plate two and the tooth cylinder is coordinated to change the pressure between the scraper and the ice, thereby realizing variable-voltage and variable-diameter scraping, with high ice scraping efficiency and no damage to the cable.

[0022] 2. When removing ice, the grounding electrode lead de-icing device of the ultra-high voltage direct current transmission system can generate heat by setting an incomplete friction plate and an incomplete friction sleeve, and then absorb the generated heat through the heat pipe. Since one end of the heat pipe is closed, the outside air will be sucked into the heat pipe when the heat pipe rotates, and the air will be heated by the heat absorbed by the heat pipe. The heated air is then sprayed on the cable through the air outlet shower to heat the cable, melt the ice in the cable gap, and remove the ice on the cable more thoroughly. At the same time, the cable surface can also be air-dried to reduce the probability of the cable being re-iced, extend the time for the cable to be re-iced, and reduce the frequency of cable deicing.

[0023] 3. When the grounding electrode lead de-icing device of the ultra-high voltage direct current transmission system is removing ice, the arc plate, spring and pressure roller are arranged to drive the pressure wheel to move back and forth on the bracket, so as to impact the cable and make the cable vibrate, which is beneficial to improve the efficiency of removing ice on the cable. At the same time, with the use of screws and nuts, the position of the pressure wheel can be adjusted to impact and vibrate cables of different sizes. Adjusting the impact degree within a certain range can improve the efficiency of ice removal while protecting the cable.

[0024] In summary, the present invention utilizes the rotation speed of motor 2 to change the pressure between the scraper and the ice, thereby removing ice of different hardness without causing damage to the cable. At the same time, the friction heat generated by the rotation between the incomplete friction plate and the incomplete friction sleeve can be used to remove the ice in the cable gap and dry the cable, so that the ice removal is more thorough and the probability of the cable being iced again is reduced. In addition, the cable can be vibrated to de-ice, further improving the ice removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0026] Figure 1 A schematic diagram of the structure of an ice melting device for grounding electrode leads of an ultra-high voltage direct current transmission system proposed by the present invention;

[0027] Figure 2 for Figure 1 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0028] Figure 3 for Figure 1 A schematic detailed view of the plan structure along one of the angles;

[0029] Figure 4 for Figure 1 Detailed schematic diagram of the structure of the cable, aircraft, mobile assembly and counterweight assembly;

[0030] Figure 5 for Figure 4 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0031] Figure 6 for Figure 5 A schematic detailed diagram of the enlarged structure after removing the aircraft;

[0032] Figure 7 for Figure 6 An enlarged structural schematic detail diagram of the scraping assembly;

[0033] Figure 8 for Figure 7 The enlarged schematic detail diagram of the structure after removing the cable;

[0034] Fig. 9 for Figure 8 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0035] Fig.10 for Fig. 9 The enlarged structural schematic detailed diagram after the linkage components are removed;

[0036] Fig.11 for Fig.10 A detailed diagram of the enlarged structure of the middle mounting plate, scraper and centrifugal block;

[0037] Fig.12 for Figure 6 Enlarged structural schematic details of the central ice melting assembly, the curved slide rail and the curved slide plate;

[0038] Fig.13 for Fig.12 An enlarged schematic diagram of the structure of the ice melting assembly;

[0039] Fig.14 for Fig.13 A detailed diagram of the enlarged structure of the incomplete friction plate and the incomplete friction sleeve;

[0040] Fig.15 for Figure 6 A schematic diagram of the enlarged structure of the ice melting component and the vibration component;

[0041] Fig.16 for Fig.15 A schematic detailed diagram of the enlarged structure of the vibration component;

[0042] Fig.17 for Fig.16 Detailed schematic diagram of the structure after being rotated to a certain angle;

[0043] Fig.18 for Fig.17 A detailed diagram of the structure after the pressure roller and the arc plate are removed and rotated to a certain angle.

[0044] In the figure: 1 aircraft, 2 cables, 3 scraper assembly, 4 ice melting assembly, 5 balance assembly, 6 support frame, 7 electric push rod 1, 8 connecting rod, 9 linkage assembly, 10 motor 1, 11 driving wheel, 12 clamping wheel, 13 motor 2, 14 universal coupling, 15 fixed frame, 16 gear, 17 transmission belt, 18 arc slide, 19 arc slide rail, 20 incomplete gear ring, 21 mounting plate, 22 scraper, 23 vertical plate, 24 connecting frame 1, 25 centrifugal block, 26 telescopic rod, 27 Tooth plate one, 28 tooth cylinder, 29 tooth plate two, 30 connecting frame two, 31 incomplete friction plate, 32 incomplete friction sleeve, 33 heat pipe, 34 air shower, 35 bracket, 36 pressure wheel, 37 connecting rod, 38 pressure roller, 39 arc plate, 40 frame, 41 limit sliding column, 42 moving rod, 43 limit disk, 44 disk, 45 spring, 46 screw, 47 nut, 48 pillar, 49 rotating disk, 50 connecting disk, 51 counterweight plate, 52 electric push rod two, 53 counterweight block. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Example 1: Reference Figure 1-Figure 6 A device for melting ice of a grounding electrode lead of an ultra-high voltage direct current transmission system comprises a cable 2 and a support frame 6, and also comprises a connecting rod 8 fixedly mounted on the support frame 6, on which a vertical plate 23 is rotatably mounted; a rotatable vertical plate 23 is adopted here, so that the vertical plate 23 can rotate around the connecting rod 8 within a certain range. When the cable 2 is suspended in the air, it will sag under the action of gravity, and the cable 2 after sagging is not in a straight line state. At this time, the vertical plate 23 adopts a rotating design, which can better remove ice and improve the removal efficiency.

[0047] The moving part is installed on the supporting frame 6, and is used to drive the whole equipment to be installed on the cable 2 and move on the cable 2. The moving part includes an aircraft 1 fixedly installed on the top of the supporting frame 6, and a moving component matching with the cable 2 is installed on the supporting frame 6.

[0048] A controller is fixedly mounted on the support frame 6, which can remotely control the aircraft 1. The aircraft 1 is an existing flying device, and its specific structure and operation mode are not described in detail here.

[0049] The moving assembly includes two driving wheels 11 rotatably mounted on a supporting frame 6, a sliding plate is slidably mounted on the supporting frame 6, two clamping wheels 12 cooperating with the driving wheels 11 are rotatably mounted on the sliding plate, a motor 10 is fixedly mounted on the supporting frame 6, a driving end of the motor 10 is fixedly connected to one of the driving wheels 11, an electric push rod 7 is fixedly mounted on the supporting frame 6, and a telescopic end of the electric push rod 7 is fixedly connected to the sliding plate.

[0050] Before de-icing, the device needs to be installed on the cable 2, and the aircraft 1 is used to bring the device to the height of the cable 2. Then, by adjusting the position of the aircraft 1, the two driving wheels 11 are placed on the cable 2. Then, the controller is used to control the operation of the electric push rod 7, which drives the sliding plate to move, thereby driving the clamping wheel 12 to move, so that the clamping wheel 12 and the cable 2 are against each other. At this time, the driving wheel 11 and the clamping wheel 12 will clamp the cable 2, and then the driving wheel 11 is driven to rotate by the motor 10, so as to achieve the purpose of moving on the cable 2 (the driving wheel 11 and the clamping wheel 12 both adopt a concave design in the middle, which can wrap the cable 2 and reduce the probability of slipping off the cable 2).

[0051] A balancing assembly 5 is installed on the supporting frame 6; the balancing assembly 5 includes a counterweight plate 51 fixedly installed on the supporting frame 6, a counterweight block 53 is slidably installed on the counterweight plate 51, and an electric push rod 52 is fixedly installed on the counterweight plate 51, and the telescopic end of the electric push rod 52 is fixedly connected to the counterweight block 53.

[0052] Since the surface of the cable 2 is not smooth and a certain degree of vibration and swaying will occur when clearing the ice, in order to improve the stability of the movement of the device, the electric push rod 2 52 can be controlled by the controller to move the counterweight block 53 on the counterweight plate 51, changing the distance between the counterweight block 53 and the support frame 6, thereby changing the center point position, which is used to balance the device. A horizontal sensor is fixedly installed on the support frame 6. The horizontal sensor will sense the horizontality of the device, and then transmit the signal to the controller, and the balance is controlled by the controller.

[0053] Embodiment 2: This embodiment is different from the embodiment 1 in that: Figure 1-Figure 3 , Figure 6-Figure 18The cleaning part is installed on the vertical plate 23, and the cleaning part includes a scraping component 3, an ice melting component 4 and a vibration component.

[0054] The scraping assembly 3 is used to scrape ice on the cable 2; the scraping assembly 3 includes a connecting frame 24 fixedly mounted on the vertical plate 23, an arc-shaped slide rail 19 fixedly mounted on the connecting frame 24, an arc-shaped slide plate 18 slidably mounted on the arc-shaped slide rail 19, a plurality of mounting plates 21 fixedly mounted on the arc-shaped slide plate 18, a plurality of telescopic rods 26 fixedly mounted on each mounting plate 21, a scraper 22 matching the cable 2 is fixedly mounted on the plurality of matching telescopic rods 26, and a pressure regulating mechanism matching the corresponding scraper 22 is mounted on each mounting plate 21.

[0055] The arc-shaped slide rail 19 is kept fixed under the action of the connecting frame 24, and the arc-shaped slide plate 18 will rotate on the arc-shaped slide rail 19. Since the arc-shaped slide rail 19 and the arc-shaped slide plate 18 are both arc-shaped, the moving trajectory of the arc-shaped slide plate 18 is circular. The rotation of the arc-shaped slide plate 18 drives the mounting plate 21 to rotate around the center point of the arc-shaped slide plate 18, and the rotation of the mounting plate 21 drives the scraper plate 22 to rotate, so as to rotate the cable 2 to scrape the ice. The scraper plate 22 may be offset when moving. At this time, it is necessary to limit it through the telescopic rod 26 to ensure that the scraper plate 22 moves stably.

[0056] The pressure regulating mechanism includes two gear cylinders 28 rotatably mounted on a mounting plate 21, two tooth plates 29 meshing with the corresponding gear cylinders 28 are slidably mounted on the mounting plate 21, a centrifugal block 25 is fixedly mounted on each of the two tooth plates 29, and two tooth plates 1 27 meshing with the corresponding gear cylinders 28 are fixedly mounted on the scraper 22.

[0057] Since the rotation of the arc-shaped slide 18 will drive the centrifugal block 25 to rotate, the centrifugal block 25 will generate an outward centrifugal force, and the scraper 22 will also generate an outward centrifugal force, but the circumferential radius of the centrifugal block 25 is greater than the circumferential radius of the scraper 22, and the mass of the scraper 22 is less than the mass of the centrifugal block 25. Therefore, the centrifugal force of the centrifugal block 25 is greater than the centrifugal force of the scraper 22, and the centrifugal block 25 will move away from the center of the circular motion of the arc-shaped slide 18. The movement of the centrifugal block 25 will drive the tooth plate 29 to move, thereby driving the gear cylinder 28 to rotate. The rotation of the gear cylinder 28 will drive the tooth plate 1 27 and the tooth plate 2 29 to move in opposite directions, thereby driving the scraper 22 to move to the side close to the center of the circle, so that the scraper 22 and the cable 2 are against each other.

[0058] The force of the resistance here can be adjusted according to the rotation speed of the arc-shaped slide 18, because the magnitude of the centrifugal force is related to the rotation speed. The higher the rotation speed, the greater the centrifugal force. If the ice is of higher hardness, the rotation speed of the arc-shaped slide 18 needs to be increased. This design can not only change the force between the pressure scraper 22 and the ice, but also change the pressure in real time to avoid damage to the cable 2.

[0059] A linkage assembly 9 is installed between the scraping assembly 3 and the vertical plate 23; the linkage assembly 9 includes a motor 2 13 fixedly installed on the supporting frame 6, a fixing frame 15 fixedly installed on the vertical plate 23, two rotating shafts rotatably installed on the fixing frame 15, the two rotating shafts are connected by a transmission belt 17, a gear 16 is fixedly installed on the two rotating shafts, an incomplete gear ring 20 meshing with the two gears 16 is fixedly installed on the arc-shaped slide plate 18, and the driving end of the motor 2 13 is connected to one of the rotating shafts through a universal coupling 14.

[0060] The rotation of the driving end of the second motor 13 will drive one of the rotating shafts to rotate through the universal coupling 14 (the reason for using the universal coupling 14 here is: the second motor 13 is fixed to the support frame 6, and the rotating shaft is connected to the vertical plate 23, and relative rotation will occur between the vertical plate 23 and the support frame 6. In order to ensure the stability of the connection between the driving end of the second motor 13 and the rotating shaft, the universal coupling 14 is used to ensure the stability of the connection). The rotation of the rotating shaft drives the other rotating shaft to rotate through the transmission belt 17, thereby driving the two gears 16 to rotate. The rotation of the two gears 16 drives the incomplete gear ring 20 to rotate, thereby driving the arc-shaped slide plate 18 to rotate.

[0061] The horizontal spacing between the two gears 16 is greater than the horizontal spacing between the two ends of the opening of the arc-shaped slide rail 19, and the horizontal spacing between the two ends of the opening of the arc-shaped slide rail 19 is greater than the diameter of the cable 2. The purpose of this design is to ensure that the arc-shaped slide plate 18 can be rotated to any position and to ensure that there is a gear 16 engaged with the incomplete gear ring 20, so as to ensure that the arc-shaped slide plate 18 can rotate stably and continuously. The design of the opening size not only needs to meet the requirements of the cable 2 entering the arc-shaped slide plate 18, but also does not affect the normal rotation of the arc-shaped slide plate 18.

[0062] The ice melting assembly 4 is used to melt and remove the ice on the cable 2 that has not been scraped off; the ice melting assembly 4 includes an incomplete friction plate 31 fixedly mounted on the arc-shaped slide rail 19 through a connecting frame 2 30, an incomplete friction sleeve 32 is slidably mounted on the incomplete friction plate 31, the incomplete friction sleeve 32 is fixedly connected to the arc-shaped slide 18 through a plurality of connecting rods 37, a plurality of heat conducting pipes 33 with one end in a closed state are fixedly mounted on the inner ring of the incomplete friction sleeve 32, and the plurality of heat conducting pipes 33 are connected together with an air outlet shower 34.

[0063] As the arc-shaped slide plate 18 rotates, the incomplete friction sleeve 32 will be driven to rotate on the incomplete friction plate 31 through the connecting rod 37 (the incomplete friction plate 31 remains stationary under the action of the connecting frame 2 30), and the rotation generates friction internal energy. The heat pipe 33 will absorb the generated internal energy (internal energy refers to heat energy). At the same time, the rotation of the incomplete friction sleeve 32 will drive the heat pipe 33 to rotate, so that the outside air enters the heat pipe 33 from one end of the heat pipe 33, and then the air is heated by the absorbed internal energy. The heated air is then sprayed on the cable 2 through the air outlet shower 34, and the high-temperature airflow is used to melt the ice in the gap of the cable 2, and the cable 2 after the ice is scraped off is blown dry (the incomplete friction sleeve 32 and the incomplete friction plate 31 here are made of the same material as the brake disc and the brake pad, and the friction can generate a high temperature of up to 300 degrees, which is enough to heat the air and melt the ice).

[0064] The vibration assembly is used to perform knocking and vibration on the cable 2 to speed up the removal of ice on the cable 2; the vibration assembly includes a bracket 35 fixedly mounted on the mounting plate 21, a moving rod 42 is slidably mounted on the bracket 35, a limiting plate 43 matched with the bracket 35 is fixedly mounted on the moving rod 42, a disc 44 is fixedly mounted on the bottom of the moving rod 42, a spring 45 is fixedly mounted between the disc 44 and the bracket 35, a frame 40 is mounted on the bottom of the disc 44 through a length adjustment mechanism, a pressure wheel 36 matched with the cable 2 is rotatably mounted on the frame 40, two limiting sliding posts 41 are fixedly mounted on the frame 40, the two limiting sliding posts 41 and the bracket 35 are connected through sliding, an arc plate 39 is fixedly mounted on the top of the moving rod 42, and a pressure roller 38 matched with the arc plate 39 is rotatably mounted on the connecting frame 2 30.

[0065] As the arc-shaped slide plate 18 rotates, the mounting plate 21 rotates, thereby driving the bracket 35 to rotate. The bracket 35 rotates and drives the moving rod 42 and the arc-shaped plate 39 on the moving rod 42 to move. When the arc-shaped plate 39 moves to the position of the pressing roller 38, it will abut against the pressing roller 38. Under the limiting effect of the pressing roller 38, the arc-shaped plate 39 drives the moving rod 42 to move on the bracket 35 (such as Fig.16As shown, it moves upward), the moving rod 42 moves to drive the frame 40 and the pressure wheel 36 to move upward. When the arc plate 39 is separated from the pressure roller 38, the pressure wheel 36 is reset under the action of the spring 45, thereby forming an impact on the cable 2, causing the cable 2 to vibrate, accelerating the removal of ice, and improving the efficiency of ice removal (because the connecting rod 8 has a certain toughness, it will deviate or bend to a certain extent when removing ice, and the bending amplitude is extremely small. However, when this amplitude is transmitted to the pressure wheel 36, it may cause the pressure wheel 36 to deviate from the central axis of the cable 2. At this time, the pressure wheel 36 will be against the side of the cable 2. If a fixed block is used to impact the cable 2, friction will be generated between the fixed block and the side of the cable 2, which may cause damage to the cable 2. The use of the pressure wheel 36 can avoid such friction damage by utilizing the rotation of the pressure wheel 36).

[0066] The length adjustment mechanism includes a screw rod 46 fixedly mounted on a disc 44, a nut 47 is threadedly rotatably mounted on the screw rod 46, a connecting disc 50 is fixedly mounted on the nut 47, a plurality of pillars 48 are fixedly mounted on the connecting disc 50, a rotating disc 49 is fixedly mounted on the plurality of pillars 48, and the rotating disc 49 is rotatably connected to the frame 40.

[0067] Rotating the connecting plate 50 on the nut 47 will drive the nut 47 to move on the screw rod 46, thereby changing the distance between the frame body 40 and the bracket 35. At this time, the position of the pressing wheel 36 changes, so that cables 2 of different sizes can be impacted and vibrated. At the same time, this adjustment can also be used to change the elastic force of the spring 45, thereby changing the impact force.

[0068] The specific operation steps of this device are as follows:

[0069] Installation: First, use the aircraft 1 to bring the device to the height of the cable 2, then adjust the position of the aircraft 1 to allow the cable 2 to enter the arc-shaped slide 18, then place the two driving wheels 11 on the cable 2, and then use the controller to control the operation of the electric push rod 7, which drives the sliding plate to move, thereby driving the clamping wheel 12 to move, so that the clamping wheel 12 is against the cable 2, and at this time the driving wheel 11 and the clamping wheel 12 will clamp the cable 2, completing the installation of the device.

[0070] Ice scraping: Then start the motor 2 13. The rotation of the driving end of the motor 2 13 will drive one of the rotating shafts to rotate through the universal coupling 14. The rotation of the rotating shaft will drive the other rotating shaft to rotate through the transmission belt 17, thereby driving the two gears 16 to rotate. The rotation of the two gears 16 drives the incomplete gear ring 20 to rotate, thereby driving the arc-shaped slide plate 18 to rotate. The rotation of the arc-shaped slide plate 18 drives the mounting plate 21 to rotate around the center point of the arc-shaped slide plate 18. The rotation of the mounting plate 21 drives the scraper 22 to rotate. Since the rotation of the arc-shaped slide plate 18 drives the centrifugal block 25 to rotate, the centrifugal block 25 will generate an outward centrifugal force, and the centrifugal block 25 will move away from the center of the circular motion of the arc-shaped slide plate 18. The movement of the centrifugal block 25 will drive the tooth plate 2 29 to move, thereby driving the gear cylinder 28 to rotate. The rotation of the gear cylinder 28 will drive the tooth plate 1 27 and the tooth plate 2 29 to move in opposite directions, thereby driving the scraper 22 to move to the side close to the center of the circle, so that the scraper 22 is against the cable 2, so as to perform the ice scraping operation.

[0071] Ice melting and drying: As the arc-shaped slide plate 18 rotates, the incomplete friction sleeve 32 will be driven to rotate on the incomplete friction plate 31 through the connecting rod 37. The rotation generates friction internal energy, and the heat pipe 33 will absorb the generated internal energy. At the same time, the rotation of the incomplete friction sleeve 32 will drive the heat pipe 33 to rotate, so that the outside air enters the heat pipe 33 from one end of the heat pipe 33, and then the air is heated by the absorbed internal energy. The heated air is then sprayed on the cable 2 through the air outlet shower 34, and the high-temperature airflow is used to melt the ice in the gap of the cable 2, and the cable 2 is blown dry after the ice is scraped off.

[0072] Vibration of the cable 2: As the arc-shaped slide plate 18 rotates, the mounting plate 21 is driven to rotate, thereby driving the bracket 35 to rotate. The rotation of the bracket 35 drives the moving rod 42 and the arc-shaped plate 39 on the moving rod 42 to move. When the arc-shaped plate 39 moves to the position of the pressure roller 38, it will abut against the pressure roller 38. Under the limiting action of the pressure roller 38, the arc-shaped plate 39 drives the moving rod 42 to move on the bracket 35. The movement of the moving rod 42 drives the frame 40 and the pressure wheel 36 to move upward. When the arc-shaped plate 39 is separated from the pressure roller 38, the pressure wheel 36 is reset under the action of the spring 45, thereby forming an impact on the cable 2 and causing the cable 2 to vibrate.

[0073] Device movement: Finally, the motor 10 drives the driving wheel 11 to rotate, thereby achieving the purpose of moving on the cable 2 and performing automatic ice covering and ice melting processing.

[0074] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An ice melting device for a grounding electrode lead of an ultra-high voltage direct current transmission system, comprising a cable (2) and a supporting frame (6), characterized in that: It also includes a connecting rod (8) fixedly mounted on the supporting frame (6), and a vertical plate (23) is rotatably mounted on the connecting rod (8); A moving part, mounted on the support frame (6), used to drive the entire device to be mounted on the cable (2) and to move on the cable (2), the moving part comprising an aircraft (1) fixedly mounted on the top of the support frame (6), a moving component matched with the cable (2) mounted on the support frame (6), and a balancing component (5) mounted on the support frame (6); A cleaning part is mounted on the vertical plate (23), the cleaning part comprising a scraping component (3), an ice melting component (4) and a vibration component, a linkage component (9) is mounted between the scraping component (3) and the vertical plate (23), the scraping component (3) is used to scrape ice on the cable (2), the ice melting component (4) is used to melt and remove ice on the cable (2) that has not been scraped off, and the vibration component is used to knock and vibrate the cable (2) to accelerate the removal of ice on the cable (2); The scraping assembly (3) comprises a connecting frame (24) fixedly mounted on a vertical plate (23), an arc-shaped slide rail (19) fixedly mounted on the connecting frame (24), an arc-shaped slide plate (18) slidably mounted on the arc-shaped slide rail (19), a plurality of mounting plates (21) fixedly mounted on the arc-shaped slide plate (18), a plurality of telescopic rods (26) fixedly mounted on each mounting plate (21), a scraper (22) matched with the cable (2) fixedly mounted on the plurality of matched telescopic rods (26), and a pressure regulating mechanism matched with the corresponding scraper (22) mounted on each mounting plate (21); The pressure regulating mechanism comprises two gear cylinders (28) rotatably mounted on a mounting plate (21), two tooth plates (29) meshing with the corresponding gear cylinders (28) being slidably mounted through the mounting plate (21), a centrifugal block (25) being fixedly mounted on each of the two tooth plates (29), and two tooth plates (27) meshing with the corresponding gear cylinders (28) being fixedly mounted on the scraper (22); The linkage assembly (9) comprises a second motor (13) fixedly mounted on a support frame (6); a fixing frame (15) fixedly mounted on the vertical plate (23); two rotating shafts rotatably mounted on the fixing frame (15); the two rotating shafts are connected via a transmission belt (17); a gear (16) is fixedly mounted on each of the two rotating shafts; an incomplete gear ring (20) meshing with the two gears (16) is fixedly mounted on the arc-shaped slide plate (18); a driving end of the second motor (13) is connected to one of the rotating shafts via a universal coupling (14); The ice melting assembly (4) comprises an incomplete friction plate (31) fixedly mounted on the arc-shaped slide rail (19) via a second connecting frame (30); an incomplete friction sleeve (32) is slidably mounted on the incomplete friction plate (31); the incomplete friction sleeve (32) is fixedly connected to the arc-shaped slide plate (18) via a plurality of connecting rods (37); a plurality of heat-conducting pipes (33) with one end in a closed state are fixedly mounted on the inner ring of the incomplete friction sleeve (32); and the plurality of heat-conducting pipes (33) are connected to a common air outlet shower head (34); The vibration assembly comprises a bracket (35) fixedly mounted on a mounting plate (21), a moving rod (42) being slidably mounted on the bracket (35), a limiting plate (43) matching with the bracket (35) being fixedly mounted on the moving rod (42), a disc (44) being fixedly mounted on the bottom of the moving rod (42), a spring (45) being fixedly mounted between the disc (44) and the bracket (35), a frame (40) being mounted on the bottom of the disc (44) via a length adjustment mechanism, a pressure wheel (36) matching with the cable (2) being rotatably mounted on the frame (40), two limiting sliding posts (41) being fixedly mounted on the frame (40), the two limiting sliding posts (41) being slidably connected with the bracket (35), an arc plate (39) being fixedly mounted on the top of the moving rod (42), and a pressure roller (38) matching with the arc plate (39) being rotatably mounted on the second connecting frame (30); The length adjustment mechanism comprises a screw rod (46) fixedly mounted on a circular disk (44); a nut (47) is rotatably mounted on the screw rod (46); a connecting disk (50) is fixedly mounted on the nut (47); a plurality of pillars (48) are fixedly mounted on the connecting disk (50); a rotating disk (49) is commonly fixedly mounted on the plurality of pillars (48); and the rotating disk (49) is rotatably connected to the frame (40).

2. The ice melting device for grounding electrode lead of an ultra-high voltage direct current transmission system according to claim 1, characterized in that: The moving assembly comprises two driving wheels (11) rotatably mounted on a supporting frame (6); a sliding plate is slidably mounted on the supporting frame (6); two clamping wheels (12) cooperating with the driving wheels (11) are rotatably mounted on the sliding plate; a motor (10) is fixedly mounted on the supporting frame (6); a driving end of the motor (10) is fixedly connected to one of the driving wheels (11); an electric push rod (7) is fixedly mounted on the supporting frame (6); a telescopic end of the electric push rod (7) is fixedly connected to the sliding plate.

3. The ice melting device for grounding electrode lead of an ultra-high voltage direct current transmission system according to claim 1, characterized in that: The balancing assembly (5) comprises a counterweight plate (51) fixedly mounted on a support frame (6), a counterweight block (53) being slidably mounted on the counterweight plate (51), a second electric push rod (52) being fixedly mounted on the counterweight plate (51), and a telescopic end of the second electric push rod (52) being fixedly connected to the counterweight block (53).

4. The ice melting device for grounding electrode lead of an ultra-high voltage direct current transmission system according to claim 1, characterized in that: The horizontal spacing between the two gears (16) is greater than the horizontal spacing between the two ends of the opening of the arc-shaped slide rail (19), and the horizontal spacing between the two ends of the opening of the arc-shaped slide rail (19) is greater than the diameter of the cable (2).

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