An ice removal device for a transmission line

Abstract

The present invention relates to the field of cable technology, and in particular to a de-icing device for power transmission lines. The device comprises a shell, an ice-breaking plate, an auger, a traveling mechanism, and a driving mechanism. During the travel process, the present invention utilizes the movement of the ice-breaking plate and the rotation of the auger blades to break the ice layer, and the ice layer falls off in the form of blocks, saving energy. During the de-icing process, the cable will not shake violently, solving the problem of cable strand breakage due to shaking in the knocking de-icing and vibration de-icing methods. In addition, during the rotation of the auger, the ice layer exerts a force on the auger, thereby assisting the movement of the de-icing device along the ice layer, solving the problem of the de-icing device slipping during the de-icing process, causing the moving speed to slow down, or even being unable to move forward to de-ice in the uphill stage, thereby improving the de-icing efficiency. The present invention also applies a clamping force to the ice layer, ensuring that the de-icing device can move smoothly along the cable while solving the problem of damaging the cable in the prior art in order to ensure the clamping force.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and specifically relates to an ice removal device for a power transmission line. Background Art

[0002] Icing on power transmission lines is a major hidden danger threatening the safe operation of the power grid. Especially in high-humidity and low-temperature areas in winter, icing may cause wire breakage, tower collapse, and large-scale power outages. In recent years, with the frequent occurrence of extreme climates globally, higher requirements have been put forward for the ice resistance of power transmission lines. For this reason, scientific research institutions and power enterprises have developed a variety of ice removal technologies, covering mechanical ice breaking, thermal ice melting, chemical ice prevention, and emerging intelligent means.

[0003] Compared with thermal ice melting and chemical ice prevention, mechanical ice breaking has stronger adaptability and lower cost. When removing ice from power transmission lines at present, an ice removal device is used to replace manual labor, which not only improves the ice removal efficiency but also avoids safety accidents. The current mechanical ice removal methods mainly include vibration ice removal, impact ice removal, etc. For example, Chinese Patent No. CN118412815A discloses a cable striking ice removal device, which removes ice by repeatedly hitting the cable with a striking rod to generate a vibration swing by making the cable swing. However, for the ice removal devices in the above patent and the prior art, when walking on the cable, the guiding rollers are prone to slipping, especially at the climbing position, where they cannot move forward and even move backward, resulting in poor ice removal effect and low ice removal efficiency. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention proposes an ice removal device for a power transmission line, which solves the problem that the guiding rollers of the ice removal device slip during the ice removal process, resulting in the ice removal device being unable to move forward or even move backward, and has higher ice removal efficiency and better ice removal effect.

[0005] The ice removal device for a power transmission line of the present invention adopts the following technical solutions: including:

[0006] A housing, on which a through hole for a cable to pass through is opened; a driving motor is installed inside the housing;

[0007] An ice breaking plate, installed in the through hole. The projection of the ice breaking plate on the horizontal plane is triangular, and the tip of the ice breaking plate extends out of the housing and points to the forward direction; the thickness of the front end of the ice breaking plate is less than that of the rear end;

[0008] Two augers, which are respectively located on the left and right sides of the advancing direction of the ice breaking plate, and the augers are located in front of the ice breaking plate along the forward direction. One end of the auger facing the housing is fixedly connected with a rotating shaft, and the rotating shaft is rotatably installed in the housing;

[0009] Guide wheels, multiple in number, are arranged at intervals along the axial direction of the cable; the guide wheels are rotatably installed on the housing, and the rotation axis of the guide wheels is perpendicular to the cable;

[0010] The transmission mechanism is arranged inside the housing. The transmission mechanism is used to drive the multiple guide wheels to rotate under the drive of the drive motor, and at the same time drive the two augers to rotate around their own axes respectively. During the rotation of the augers, the forward reaction force of the ice layer wrapped outside the cable is received.

[0011] Optionally, the rotating shaft is installed on the housing so as to move radially along the through hole; the rotating shaft is connected with an adjusting mechanism, and the adjusting mechanism is used to adjust the distance between the auger and the axis of the through hole according to the magnitude of the ice layer thrust received by the ice-breaking plate. The greater the ice layer thrust received by the ice-breaking plate, the smaller the distance between the auger and the axis of the through hole.

[0012] Optionally, the ice-breaking plate is installed on the housing so as to move along the axis of the through hole. A compression spring is arranged between the ice-breaking plate and the housing, and the compression spring makes the ice-breaking plate tend to extend out of the housing;

[0013] The adjusting mechanism includes two push rods, two guiding inclined plates and two sliding plates; the sliding plates are installed on the housing so as to move radially along the through hole, and the two rotating shafts are respectively rotatably installed on the two sliding plates; the number of the guiding inclined plates is the same as that of the sliding plates, the guiding inclined plates are arranged obliquely, the end close to the ice-breaking plate is located inside the end far from the ice-breaking plate, and the end far from the ice-breaking plate of the guiding inclined plate is fixedly connected to the sliding plate; the number of the push rods is the same as that of the guiding inclined plates, the push rods extend along the axial direction of the through hole, one end of the push rod is fixedly connected to the ice-breaking plate, and the other end points to the guiding inclined plate. The end face of the push rod facing the guiding inclined plate is an inclined surface, and the slope is the same as that of the guiding inclined plate.

[0014] Optionally, the transmission mechanism includes a first transmission component and a second transmission component; the first transmission component is used to drive the rotating shaft to rotate when the drive motor rotates; the second transmission component is used to drive the guide wheels to rotate when the rotating shaft rotates.

[0015] Optionally, the first transmission component includes a first wheel, two second wheels, two idler wheels and two transmission wheels; the first wheel is installed on the housing so as to move along the axis of the through hole, the axis of the first wheel is parallel to the axis of the through hole, and the first wheel is synchronously rotatably connected to the output end of the drive motor; the ice-breaking plate is inserted into the first wheel; mounting frames and moving frames are arranged on both the left and right sides of the axis of the through hole, and the mounting frames and the moving frames are both installed on the housing so as to move in the left-right direction; the two second wheels are respectively rotatably installed on the two mounting frames; the two rotating shafts are respectively rotatably installed on the mounting frames; the idler wheels are rotatably installed on the moving frames, and the first wheel and the second wheels are in friction transmission with the idler wheels; the two transmission wheels are respectively synchronously rotatably installed on the two rotating shafts; the transmission wheels are in meshing transmission with the second wheels; the spiral directions of the two auger blades are the same.

[0016] Optionally, the second transmission assembly includes two first bevel gears, two second bevel gears, two driving gears and two driven gears; the two first bevel gears are respectively installed on the two rotating shafts for synchronous rotation, the second bevel gear is rotatably installed on the housing and moves in the left and right directions, and a return spring is connected between the second bevel gear and the housing, and the return spring causes the second bevel gear to have a tendency to move away from the axis of the through hole; the two second bevel gears are respectively meshed with the two first bevel gears; the two driving gears are respectively connected to the two second bevel gears for synchronous rotation, and the two driven gears are respectively coaxially connected to the two guide wheels; and the two driven gears are respectively meshed with the two driving gears; the axes of the two first bevel gears are parallel but in opposite directions; the axes of the two second bevel gears are parallel but in opposite directions.

[0017] Optionally, the first wheel and the second wheel are both conical, the end of the first wheel facing the icebreaker plate is the small end; the end of the second wheel facing the auger is the large end; and the compression spring is located at the rear side of the first wheel.

[0018] Optionally, the lower surface of the ice-breaking plate is in contact with the cable.

[0019] Optionally, the shell is in an inverted U-shape, and the shell includes a horizontal section and two vertical sections, the upper ends of the two vertical sections are fixedly connected through the horizontal section; and a lifting ring is fixedly connected to the upper surface of the horizontal section.

[0020] Optionally, in the vertical direction, the length of one vertical segment is greater than the length of another vertical segment.

[0021] The beneficial effects of the present invention are as follows: a de-icing device for a power transmission line of the present invention utilizes the movement of an ice-breaking plate and the rotation of an auger blade to break the ice layer. During the breaking process, the ice layer falls off in the form of blocks after being broken, saving energy. In the entire process, the de-icing device will not cause the cable to shake, thereby solving the problem of cable strand breakage caused by shaking in the knocking de-icing and vibration de-icing methods. In addition, the present invention arranges an auger circumferentially in the through hole. During the process of the auger blade being inserted into the ice layer and rotating, the force exerted by the ice layer on the auger assists the movement of the de-icing device along the ice layer, thereby solving the problem of the de-icing device slipping during the de-icing process, causing the movement speed to slow down, or even being unable to move forward to de-ice during the uphill stage, thereby ensuring the efficiency of de-icing. The present invention also applies a clamping force to the ice layer, which ensures that the de-icing device can move smoothly along the cable while solving the problem of damaging the cable in the prior art in order to ensure the clamping force.

[0022] Furthermore, by setting up an adjustment mechanism, the depth of the auger inserted into the ice layer can be adjusted according to the difficulty of breaking the ice layer. When the ice layer is easy to break, the auger is inserted into a shallower position of the ice layer; when the ice layer is difficult to break, the auger is inserted into a deeper position of the ice layer through the adjustment mechanism, thereby enhancing the ice breaking effect when the auger rotates.

[0023] Furthermore, by setting up a transmission mechanism, while the adjustment mechanism adjusts the depth of the auger inserted into the ice layer, the traveling speed of the de-icing device and the torque transmitted to the auger are adjusted. When the ice layer is easy to break, on the premise of ensuring the de-icing effect, the de-icing device has a relatively fast traveling speed to improve the de-icing efficiency; when the ice layer is difficult to break, the traveling speed of the de-icing device is reduced, and the torque of the auger is increased to enhance the ice-breaking ability of the auger blades during rotation, improve the breaking efficiency, and ensure the breaking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of a de-icing device for a transmission line according to the present invention;

[0026] Figure 2 It is a front view of a de-icing device for a transmission line according to the present invention;

[0027] Figure 3 It is Figure 2 a cross-sectional view taken along the A-A section in

[0028] Figure 4 It is a top view of a de-icing device for a transmission line according to the present invention;

[0029] Figure 5 It is Figure 4 a cross-sectional view taken along the B-B section in

[0030] Figure 6 It is Figure 4 a cross-sectional view taken along the C-C section in

[0031] Figure 7 It is a schematic diagram of the internal structure of the housing in a de-icing device for a transmission line according to the present invention;

[0032] Figure 8 It is Figure 7 a top view of the structure in

[0033] In the figure:

[0034] 100, housing; 101, lifting ring; 110, through hole; 120, driving motor; 130, mounting bracket; 140, moving bracket;

[0035] 200, ice-breaking plate; 210, compression spring;

[0036] 300, Screw conveyor; 310, Rotating shaft;

[0037] 400, Guide wheel;

[0038] 500, Transmission mechanism; 510, First wheel; 520, Second wheel; 530, Idler wheel; 540, Driving wheel; 550, First bevel gear; 560, Second bevel gear; 570, Driving gear; 580, Driven gear;

[0039] 600, Cable; 610, Ice layer;

[0040] 700, Adjusting mechanism; 710, Push rod; 720, Guide ramp; 730, Sliding plate. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] As Figures 1 to 8 shown, an ice removal device for a transmission line provided by an embodiment of the present invention includes a housing 100, an ice-breaking plate 200, a screw conveyor 300, a guide wheel 400, and a transmission mechanism 500;

[0043] A through hole 110 for the cable 600 to pass through is provided on the housing 100; a driving motor 120 is installed inside the housing 100;

[0044] The ice-breaking plate 200 is installed in the through hole 110. The projection of the ice-breaking plate 200 on the horizontal plane is triangular. The tip of the ice-breaking plate 200 extends out of the housing 100 and points in the advancing direction; the thickness of the front end of the ice-breaking plate 200 is less than that of the rear end, so that the ice-breaking plate 200 is in line contact with the ice layer 610 wrapped outside the cable 600; the lower surface of the ice-breaking plate 200 is in contact with the cable 600;

[0045] There are two screw conveyors 300, which are respectively located on the left and right sides of the advancing direction of the ice-breaking plate 200, and the screw conveyor 300 is located on the front side of the advancing direction of the ice-breaking plate 200. One end of the screw conveyor 300 facing the housing 100 is fixedly connected to a rotating shaft 310, and the rotating shaft 310 is rotatably installed in the housing 100;

[0046] There are multiple guide wheels 400, and the multiple guide wheels 400 are arranged at intervals along the axis direction of the cable 600; the guide wheels 400 are rotatably installed in the housing 100, and the axis of rotation of the guide wheels 400 is perpendicular to the cable 600;

[0047] The transmission mechanism 500 is arranged in the shell 100. The transmission mechanism 500 is used to drive the multiple guide wheels 400 to rotate under the drive motor 120, and at the same time drive the two augers 300 to rotate around their own axes respectively. During the rotation process, the augers 300 are subjected to the forward reaction force of the ice layer 610.

[0048] When it is necessary to de-ice the transmission line, a method of hoisting or automatic installation using a climbing mechanism is selected to pass the cable 600 through the through hole 110. Thereafter, the drive motor 120 is started, and the drive motor 120 drives the multiple guide wheels 400 to rotate around their own axes through the transmission mechanism 500. During the rotation of the guide wheels 400, the housing 100 is driven to move along the axis of the cable 600 to the position where the ice layer 610 exists. The tip of the icebreaker plate 200 contacts the ice layer 610, and during the movement of the housing 100, the tip of the icebreaker plate 200 is driven to push the ice layer 610. 0. Since the projection of the ice-breaking plate 200 on the horizontal plane is a triangle, that is, the contact between the ice-breaking plate 200 and the ice layer 610 is line contact, all pressure is concentrated on the contact position between the ice-breaking plate 200 and the ice layer 610. The ice-breaking plate 200 destroys the ice layer 610 outside the cable 600. As the ice-breaking plate 200 continues to move forward, since the lower surface of the ice-breaking plate 200 is in contact with the cable 600, the broken ice layer 610 is pushed by the ice-breaking plate 200 and peeled off from the cable 600. It falls from the surface of the cable 600 under the action of gravity, completing the de-icing work.

[0049] At the same time, the transmission mechanism 500 drives the auger 300 to rotate about its own axis. During the rotation of the auger 300, the blades of the auger 300 penetrate the ice layer 610 and continue to rotate in the ice layer 610. While rotating, the auger 300 applies a backward thrust to the ice layer 610, and the ice layer 610 applies a forward reaction thrust to the blades of the auger 300, thereby assisting the de-icing device in moving forward. The present invention utilizes a pushing force to break the ice layer 610. During the breaking process, the ice layer 610 is broken and falls off in the form of blocks, saving energy and thus extending the single de-icing time of the de-icing device. Moreover, during the entire de-icing process, the de-icing device does not cause the cable 600 to shake, thereby solving the problem of cable 600 breakage in the percussion de-icing and vibration de-icing methods. Furthermore, the present invention arranges an auger 300 circumferentially around through-hole 110 to rotate within ice layer 610, thereby utilizing the force exerted by ice layer 610 on auger 300 to assist the de-icing device in moving along ice layer 610. This solves the problem of the de-icing device slipping during de-icing, resulting in a slowed movement speed, or even inability to advance and de-ice during uphill stages, thereby ensuring efficient de-icing. Furthermore, the clamping force of auger 300 in the present invention acts on ice layer 610 rather than cable 600, ensuring smooth movement of the de-icing device along cable 600 while resolving the prior art issue of damaging cable 600 in order to maintain the clamping force.

[0050] The housing 100 is in an inverted U shape. The housing 100 includes a horizontal section and two vertical sections. The upper ends of the two vertical sections are fixedly connected by the horizontal section. A lifting ring 101 is fixedly connected to the upper surface of the horizontal section. In the vertical direction, the length of one vertical section is greater than that of the other vertical section. Thus, during the process of the unmanned aerial vehicle hooking the lifting ring 101 to hoist the de-icing device, after only the lower end of the shorter vertical section crosses the cable 600, the installation can be completed. After the driving motor 120 is started subsequently, de-icing can be carried out.

[0051] In a further embodiment, the rotating shaft 310 is installed in the housing 100 so as to move radially along the through hole 110. The rotating shaft 310 is connected with an adjusting mechanism 700. The adjusting mechanism 700 is used to adjust the distance between the auger 300 and the axis of the through hole 110 according to the magnitude of the thrust of the ice layer 610 on the ice-breaking plate 200. The greater the thrust of the ice layer 610 on the ice-breaking plate 200, the smaller the distance between the auger 300 and the axis of the through hole 110.

[0052] Under the action of the driving motor 120 and the transmission mechanism 500, the guide wheel 400 and the auger 300 rotate around their own axes respectively. The rotation of the guide wheel 400 drives the housing 100 to move along the axis direction of the cable 600. When the auger 300 rotates, the blades are inserted into the ice layer 610 to assist in crushing the ice layer 610. The reaction force of the ice layer 610 on the auger 300 assists the housing 100 to move forward.

[0053] When the ice layer 610 outside the cable 600 is easily broken, as the housing 100 moves, the ice-breaking plate 200 and the auger 300 can easily break the ice layer 610 to complete the de-icing work. When the ice layer 610 outside the cable 600 is thick and difficult to break, when the housing 100 moves forward, the ice-breaking plate 200 cannot break the ice layer 610 in time. As the housing 100 continues to move, the thrust of the ice layer 610 on the ice-breaking plate 200 gradually increases. During this process, under the action of the adjusting mechanism 700, the rotating shaft 310 moves radially along the through hole 110 and gradually moves towards the axis direction of the through hole 110. As the auger 300 rotates, the blades of the auger 300 are inserted into the position of the ice layer 610 close to the cable 600. The contact area between the auger 300 and the ice layer 610 increases, thereby assisting the ice-breaking plate 200 to break the ice layer 610 and ensuring the de-icing effect.

[0054] In a further embodiment, the ice-breaking plate 200 is installed in the housing 100 so as to move along the axis of the through hole 110. A compression spring 210 is arranged between the ice-breaking plate 200 and the housing 100. The compression spring 210 makes the ice-breaking plate 200 tend to extend out of the housing 100.

[0055] The adjusting mechanism 700 includes two push rods 710, two guiding inclined plates 720 and two sliding plates 730; the sliding plates 730 are installed on the housing 100 to move radially along the through hole 110, and the two rotating shafts 310 are respectively rotatably installed on the two sliding plates 730; the number of the guiding inclined plates 720 is the same as that of the sliding plates 730, the guiding inclined plates 720 are arranged obliquely, the end of the guiding inclined plate 720 close to the ice-breaking plate 200 is located inside the end far from the ice-breaking plate 200, and the end of the guiding inclined plate 720 far from the ice-breaking plate 200 is fixedly connected to the sliding plate 730; the number of the push rods 710 is the same as that of the guiding inclined plates 720, the push rods 710 extend along the axis direction of the through hole 110, one end of the push rod 710 is fixedly connected to the ice-breaking plate 200, the other end points to the guiding inclined plate 720, and the end face of the push rod 710 facing the guiding inclined plate 720 is an inclined surface, and the slope is the same as that of the guiding inclined plate 720.

[0056] During the ice removal process, when the ice layer 610 outside the cable 600 is easy to break, as the housing 100 moves, the ice-breaking plate 200 moves synchronously with the housing 100. Under the rotation of the auger 300 and the push of the ice-breaking plate 200, the ice layer 610 can be broken to complete the ice removal work; when the ice layer 610 outside the cable 600 is thick and difficult to break, when the housing 100 moves forward, the ice-breaking plate 200 cannot break the ice layer 610 in time. As the housing 100 continues to move, the thrust force of the ice-breaking plate 200 from the ice layer 610 gradually increases, and the ice-breaking plate 200 gradually approaches the housing 100, and the compression spring 210 is compressed to store energy. During the process of the ice-breaking plate 200 approaching the housing 100, the length of the push rod 710 extending into the housing 100 gradually increases, the push rod 710 abuts against the guiding inclined plate 720 and applies a pressure to the guiding inclined plate 720. Then, when being subjected to the pressure, the guiding inclined plate 720 and the sliding plate 730 move radially along the through hole 110 and gather towards the axis direction of the through hole 110, thereby driving the two augers 300 to gather towards the cable 600. Then, during the subsequent rotation of the augers 300, the blades are inserted into the position of the ice layer 610 close to the cable 600, and the contact area between the augers 300 and the ice layer 610 increases, enhancing the ice-breaking ability of the augers 300 to the ice layer 610 and ensuring the ice removal effect.

[0057] In a further embodiment, the transmission mechanism 500 includes a first transmission component and a second transmission component; the first transmission component is used to drive the rotating shaft 310 to rotate when the driving motor 120 rotates; the second transmission component is used to drive the guide wheel 400 to rotate when the rotating shaft 310 rotates;

[0058] The first transmission component includes a first wheel 510, two second wheels 520, two idler wheels 530, and two drive wheels 540; the first wheel 510 is installed on the housing 100 so as to move along the axis of the through hole 110, the axis of the first wheel 510 is parallel to the axis of the through hole 110, and the first wheel 510 is synchronously rotatably connected to the output end of the drive motor 120; the ice-breaking plate 200 is inserted into the first wheel 510; mounting brackets 130 and moving brackets 140 are provided on both the left and right sides of the axis of the through hole 110, and both the mounting brackets 130 and the moving brackets 140 are installed on the housing 100 so as to move in the left-right direction; the two second wheels 520 are respectively rotatably installed on the two mounting brackets 130; the two rotating shafts 310 are respectively rotatably installed on the mounting brackets 130; the idler wheel 530 is rotatably installed on the moving bracket 140, and both the first wheel 510 and the second wheel 520 are in friction transmission with the idler wheel 530; the two drive wheels 540 are respectively synchronously rotatably installed on the two rotating shafts 310; the drive wheel 540 is in meshing transmission with the second wheel 520; the blades of the two augers 300 have the same helix direction;

[0059] The second transmission component includes two first bevel gears 550, two second bevel gears 560, two drive gears 570, and two driven gears 580; the two first bevel gears 550 are respectively synchronously rotatably installed on the two rotating shafts 310, the second bevel gear 560 is rotatably installed on the housing 100 and moves in the left-right direction, and a return spring is connected between the second bevel gear 560 and the housing 100, and the return spring makes the second bevel gear 560 tend to move away from the axis of the through hole 110; the two second bevel gears 560 are respectively meshed with the two first bevel gears 550; the two drive gears 570 are respectively synchronously rotatably connected to the two second bevel gears 560, and the two driven gears 580 are respectively coaxially connected to the two guide wheels 400; and the two driven gears 580 are respectively meshed with the two drive gears 570; thus, when the auger 300 is subjected to a forward thrust from the ice layer 610, the guide wheels 400 are driven to move forward through the rotating shafts 310, the first bevel gears 550, the second bevel gears 560, the drive gears 570, and the driven gears 580.

[0060] During the ice-breaking process, the motor drives the first wheel 510 to rotate synchronously. During the rotation of the first wheel 510, it drives two transition wheels 530 to rotate respectively around their own axes; and then drives two second wheels 520 to rotate respectively around their own axes. When the second wheel 520 rotates, it drives the transmission wheel 540 engaged with it to rotate around its own axis, so as to drive two augers 300 to rotate respectively through two rotating shafts 310. During the rotation of the augers 300, they are inserted into the ice layer 610 and break the ice layer 610. When the rotating shaft 310 rotates, it drives the first bevel gear 550 installed on it to rotate synchronously. Since the first bevel gear 550 and the second bevel gear 560 are engaged, the second bevel gear 560 rotates synchronously. The second bevel gear 560 drives the driving gear 570 to rotate synchronously, and then drives the driven gear 580 to rotate, and finally drives the guide wheel 400 to rotate. The frictional force between the guide wheel 400 and the cable 600 causes the housing 100 to move forward.

[0061] When the difficulty of breaking the ice layer 610 increases, the thrust on the ice-breaking plate 200 from the ice layer 610 increases, and the compression spring 210 is compressed to store energy. During the process of the ice-breaking plate 200 approaching the housing 100, the length of the push rod 710 extending into the housing 100 gradually increases. The push rod 710 abuts against the guiding inclined plate 720 and applies a pressure to the guiding inclined plate 720. When the guiding inclined plate 720 receives the thrust from the push rod 710, the guiding inclined plate 720 and the sliding plate 730 move along the radial direction of the through hole 110 and gather towards the axis direction of the through hole 110, and then drive two rotating shafts 310 and two augers 300 to gather towards the cable 600. During this process, two first bevel gears 550 move synchronously towards the axis direction of the through hole 110, and then drive the second bevel gear 560 to move in the left-right direction and approach the cable 600. At the same time, the return spring is compressed to store energy.

[0062] When the difficulty of breaking the ice layer 610 decreases, the thrust on the ice-breaking plate 200 from the ice layer 610 decreases, the compression spring 210 releases its elastic force and pushes the ice-breaking plate 200 forward. The thrust on the guiding inclined plate 720 from the push rod 710 becomes smaller, the return spring releases its elastic force, causing the second bevel gear 560 to move away from the cable 600. The second bevel gear 560 pushes the first bevel gear 550 to move away from the cable 600, and then the rotating shaft 310 and the auger 300 are reset.

[0063] In a further embodiment, both the first wheel 510 and the second wheel 520 are conical. The end of the first wheel 510 facing the ice-breaking plate 200 is the small end; the end of the second wheel 520 facing the auger 300 is the large end; the compression spring 210 is located behind the first wheel 510.

[0064] During the ice-breaking process, the motor drives the first wheel 510 to rotate synchronously, and the idler wheel 530 transmits the power of the first wheel 510 to the second wheel 520. When the ice layer 610 is easily broken, the idler wheel 530 frictionally drives at the position with a larger diameter of the first wheel 510. Under the drive of the first wheel 510, the second wheel 520 and the transmission wheel 540, the rotating shaft 310 rotates around its own axis. At this time, the rotating speed of the rotating shaft 310 is relatively fast.

[0065] When the difficulty of breaking the ice layer 610 increases, the ice-breaking plate 200 receives a greater thrust from the ice layer 610, and the ice-breaking plate 200 moves backward, thereby pushing the first wheel 510 backward, and the compression spring 210 is compressed and stores energy. During the backward movement of the ice-breaking plate 200, the guiding inclined plate 720 receives the thrust of the push rod 710, and the guiding inclined plate 720 and the sliding plate 730 move radially along the through hole 110 and gather towards the axis direction of the through hole 110, thereby driving the two rotating shafts 310 and the two augers 300 to gather towards the cable 600. During this process, the rotating shaft 310 drives the mounting bracket 130 to move towards the cable 600, and the second wheel 520 rotatably mounted on the mounting bracket 130 moves towards the first wheel 510. When the second wheel 520 moves, it pushes the idler wheel 530 that is frictionally driven by it to move synchronously. During this process, the idler wheel 530 always frictionally drives with the first wheel 510 and the second wheel 520, and the contact position between the idler wheel 530 and the first wheel 510 changes, and the position with a smaller diameter of the first wheel 510 contacts the idler wheel 530, thereby changing the transmission ratio between the first wheel 510 and the second wheel 520. The rotating speed of the second wheel 520 gradually slows down, but the torque transmitted to the rotating shaft 310 through the second wheel 520 and the transmission wheel 540 increases, and the rotating shaft 310 provides a greater rotating force for the auger 300, further enhancing the ice-breaking ability of the auger 300 for the ice layer 610. And at this time, the traveling speed of the de-icing device is relatively slow, providing sufficient time for the auger 300 and the ice-breaking plate 200 to remove the ice layer 610 that is difficult to break, ensuring the de-icing effect.

[0066] When the difficulty of breaking the ice layer 610 is reduced, the thrust exerted on the ice-breaking plate 200 by the ice layer 610 decreases, and the thrust exerted on the guiding inclined plate 720 by the push rod 710 becomes smaller. The compression spring 210 releases its elastic force and pushes the ice-breaking plate 200 and the first wheel 510 forward. When the first wheel 510 moves forward, it applies a thrust to the transition wheel 530, causing the two transition wheels 530 to move away from each other. Furthermore, the two second wheels 520 are pushed to move away from each other. The second wheel 520 drives the mounting bracket 130 and the rotating shaft 310 to move away from each other, and the return spring releases its elastic force to push the rotating shafts 310 to move away and reset. During this process, the transition wheel 530 always frictionally drives with the first wheel 510 and the second wheel 520, and the contact position between the transition wheel 530 and the first wheel 510 changes. The position with a larger diameter of the first wheel 510 contacts the transition wheel 530, and the transmission ratio between the first wheel 510 and the second wheel 520 changes again. The rotational speed of the second wheel 520 becomes faster. Furthermore, under the drive of the transmission wheel 540, the rotational speed of the rotating shaft 310 becomes faster, accelerating the traveling speed of the de-icing device.

[0067] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A deicing device for a power transmission line, characterized in that: include: The housing is provided with a through hole for the cable to pass through; the driving motor is installed in the housing; The icebreaker plate is movably mounted on the shell along the axis of the through hole. The projection of the icebreaker plate on the horizontal plane is triangular, and the tip of the icebreaker plate extends out of the shell and points in the forward direction. The thickness of the front end of the icebreaker plate is smaller than that of the rear end. A compression spring is provided between the icebreaker plate and the shell, which makes the icebreaker plate tend to extend out of the shell. There are two augers, which are respectively located on the left and right sides of the icebreaker plate in the direction of travel, and the augers are located in front of the icebreaker plate in the forward direction. One end of the augers facing the shell is fixedly connected to a rotating shaft, which moves radially along the through hole and is rotatably mounted on the shell. There are multiple guide wheels, which are spaced apart along the axial direction of the cable. The guide wheels are rotatably mounted on the housing, and the rotation axis of the guide wheels is perpendicular to the cable. The transmission mechanism is arranged in the housing. The transmission mechanism is used to drive the multiple guide wheels to rotate under the drive motor, and at the same time drive the two augers to rotate around their own axes respectively. During the rotation of the augers, they are subjected to the forward reaction force of the ice layer wrapped around the outside of the cable; The adjusting mechanism is connected to the rotating shaft, and the adjusting mechanism is used to adjust the distance between the auger and the axis of the through hole according to the size of the thrust of the ice layer exerted on the ice breaker plate. The greater the thrust of the ice layer exerted on the ice breaker plate, the smaller the distance between the auger and the axis of the through hole; the adjusting mechanism includes two push rods, two guide inclined plates and two sliding plates; the sliding plate is installed on the shell for radial movement along the through hole, and the two rotating shafts are rotatably installed on the two sliding plates respectively; the number of guide inclined plates is consistent with the number of sliding plates, and the guide inclined plates are tilted, and the end of the guide inclined plate close to the ice breaker plate is located on the inner side away from the end of the ice breaker plate, and the end of the guide inclined plate away from the ice breaker plate is fixedly connected to the sliding plate; the number of push rods is consistent with the number of guide inclined plates, and the push rod extends along the axial direction of the through hole, one end of the push rod is fixedly connected to the ice breaker plate, and the other end points to the guide inclined plate. The end face of the push rod facing one end of the guide inclined plate is an inclined surface, and the slope is consistent with that of the guide inclined plate.

2. A deicing device for a power transmission line according to claim 1, characterized in that: The transmission mechanism includes a first transmission assembly and a second transmission assembly; the first transmission assembly is used to drive the rotating shaft to rotate when the driving motor rotates; the second transmission assembly is used to drive the guide wheel to rotate when the rotating shaft rotates.

3. The deicing device for a power transmission line according to claim 2, characterized in that: The first transmission assembly includes a first wheel, two second wheels, two transition wheels and two transmission wheels; the first wheel is movably mounted on the shell along the axis of the through hole, the axis of the first wheel is parallel to the axis of the through hole, and the first wheel is synchronously rotatably connected to the output end of the drive motor; the ice breaker is inserted in the first wheel; a mounting frame and a moving frame are provided on the left and right sides of the axis of the through hole, and the mounting frame and the moving frame are movably mounted on the shell along the left and right directions; the two second wheels are rotatably mounted on the two mounting frames respectively; the two rotating shafts are rotatably mounted on the mounting frames respectively; the transition wheel is rotatably mounted on the moving frame, and the first wheel and the second wheel are both frictionally driven with the transition wheel; the two transmission wheels are synchronously rotatably mounted on the two rotating shafts respectively; the transmission wheel is engaged with the second wheel for transmission; the two auger blades have the same rotation direction.

4. The deicing device for a power transmission line according to claim 3, characterized in that: The second transmission assembly includes two first bevel gears, two second bevel gears, two driving gears, and two driven gears; the two first bevel gears are respectively mounted on two rotating shafts for synchronous rotation, the second bevel gear is rotatably mounted on the housing and moves in the left and right directions, a return spring is connected between the second bevel gear and the housing, and the return spring tends to cause the second bevel gear to move away from the axis of the through hole; the two second bevel gears are respectively engaged with the two first bevel gears; The two driving gears are respectively connected to the two second bevel gears in synchronous rotation, and the two driven gears are respectively coaxially connected to the two guide wheels; and the two driven gears are respectively engaged with the two driving gears; the axes of the two first bevel gears are parallel but face opposite directions; the axes of the two second bevel gears are parallel but face opposite directions.

5. The deicing device for a power transmission line according to claim 4, characterized in that: The first wheel and the second wheel are both conical, with the end of the first wheel facing the icebreaker being the small end; the end of the second wheel facing the auger being the large end; and the compression spring being located at the rear side of the first wheel.

6. The deicing device for a power transmission line according to claim 1, characterized in that: The lower surface of the ice-breaking plate is in contact with the cable.

7. The deicing device for a power transmission line according to claim 1, characterized in that: The shell is in an inverted U shape and includes a horizontal section and two vertical sections. The upper ends of the two vertical sections are fixedly connected through the horizontal section; and a lifting ring is fixedly connected to the upper surface of the horizontal section.

8. The deicing device for a power transmission line according to claim 7, characterized in that: In the vertical direction, the length of one vertical segment is greater than the length of another vertical segment.

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