A power transmission line cable anti-icing and de-icing device

Abstract

The utility model discloses a kind of power transmission line cable anti-icing deicing device, it is related to cable deicing technical field, including: shell;Mobile control mechanism, fixed on the shell, for controlling the device moves along the length direction of cable;Downward pressing clamping mechanism, set on the shell, and cooperate with the mobile control mechanism, for clamping the cable;Deicing mechanism, set on the downward pressing clamping mechanism, when the downward pressing clamping mechanism works, the deicing mechanism is in working posture.The utility model combines track-type running system with downward pressing clamping mechanism, utilizes driving wheel, auxiliary wheel and clamping block to jointly hold cable from multiple directions, and supplemented by ball to reduce friction, so that device can stably adhere on cable under various climatic conditions, realize smooth, non-slip autonomous walking, provide reliable platform for subsequent deicing operation.

Description

Technical Field

[0001] This utility model relates to the field of cable de-icing technology, specifically a device for preventing and removing ice from power transmission line cables. Background Technology

[0002] Transmission lines are a critical component of the power system, and their safe and stable operation is directly related to the lifeline of the national economy and the normal functioning of society. However, in winter or in high-altitude and cold regions, transmission line cables are highly susceptible to the effects of rain, snow, and freezing weather, leading to icing on their surfaces. Icing increases the weight of the conductors and wind loads, potentially causing increased conductor sag, galloping, insulator flashover, and even serious accidents such as line breaks and collapses, posing a significant threat to power grid safety. Therefore, developing effective anti-icing and de-icing technologies to ensure the reliability of transmission lines under severe weather conditions is a long-standing and important issue facing the power industry.

[0003] However, existing mechanical de-icing devices generally suffer from problems such as insufficient clamping stability, high traveling resistance, and low de-icing efficiency. Some devices use rigid clamping structures, which can easily damage the cable insulation layer; some traveling mechanisms have a small contact area with the cable, making slippage easy; and some de-icing mechanisms have a simple design, making it difficult to achieve efficient bidirectional de-icing. These problems not only affect the de-icing effect but may also cause secondary damage to the cables, hindering the widespread application of mechanical de-icing technology. Therefore, a new anti-icing and de-icing device for power transmission line cables is needed to address these shortcomings. Utility Model Content

[0004] Technical problems to be solved Existing mechanical de-icing devices still have significant shortcomings in terms of clamping stability, travel safety, and de-icing efficiency, and there is an urgent need for a solution with better overall performance.

[0005] Technical solution To achieve the above objectives, this utility model provides the following technical solution: a device for preventing and removing icing of power transmission line cables, comprising: shell; A movement control mechanism, fixed to the housing, is used to control the movement of the device along the length of the cable; A downward clamping mechanism is disposed on the housing and cooperates with the movement control mechanism to clamp the cable; The de-icing mechanism is mounted on the pressing and clamping mechanism. When the pressing and clamping mechanism is working, the de-icing mechanism is in the working position. A vibration mechanism, disposed on the housing, is used to cause the de-icing mechanism in its working position to vibrate in order to remove ice from the cable.

[0006] Furthermore, the motion control mechanism includes: Mounting bracket, fixed to the top of the housing; The drive wheel and at least one auxiliary wheel are movably connected to the mounting frame via a pivot. The track is fitted over the outside of the drive wheel and the auxiliary wheel and contacts the cable; A servo motor, fixed on the mounting bracket, has its output end connected to the drive wheel for driving the walking track to rotate.

[0007] Furthermore, the movement control mechanism also includes at least one tensioning wheel, which is movably connected to the mounting frame via a rotating shaft to maintain the tension of the walking track.

[0008] Furthermore, the pressing and clamping mechanism includes: At least two clamping blocks, the front ends of which are arc-shaped to accommodate the curvature of the cable; A support frame is fixed to the outer shell, and the clamping block is movably connected to the support frame via a rotating shaft; A drive assembly, connected to the clamping block, is used to drive the clamping block to rotate about its axis to clamp or release the cable.

[0009] Furthermore, the driving component includes: A movable ring is movably connected to the outer casing; A push bar, one end of which is movably connected to the moving ring via a rotating shaft, and the other end of which is movably connected to the tail end of the clamping block via a rotating shaft; An electric push rod is fixed inside the housing, and its telescopic end is fixedly connected to the movable ring. By driving the movable ring to move up and down, it drives the push bar to push and pull the clamping block to rotate.

[0010] Furthermore, the number of clamping blocks is three, one of which is located on one side of the device, and the other two are located on the other side of the device, in an alternating distribution.

[0011] Furthermore, several rolling balls are movably connected to the inner side of the clamping block, and the rolling balls make rolling contact with the surface of the cable.

[0012] Furthermore, the de-icing mechanism includes: The guide block is fixed on the rotating shaft of the clamping block of the pressing clamping mechanism; An ice-removing block is slidably connected to the inner side of the guide block. The ice-removing block is arc-shaped and has teeth on its inner side for breaking ice. When the pressing and clamping mechanism is in the clamping working state, the de-icing block is located on the circumferential outer side of the cable.

[0013] Furthermore, the de-icing mechanism is provided in two sets, located on the front and rear sides of the device respectively.

[0014] Furthermore, the vibration mechanism includes: The vibrating block is movably mounted on the outer casing; A vibrating arm is fixed to the vibrating block, and its top end abuts against the de-icing block of the de-icing mechanism; A vibration motor is fixed inside the housing, and its output end is connected to the vibration block for driving the vibration block and vibration arm to generate vibration.

[0015] Compared with existing technologies, this anti-icing and de-icing device for power transmission lines and cables has the following advantages: I. This utility model combines a tracked walking system with a downward clamping mechanism, using drive wheels, auxiliary wheels and clamping blocks to grip the cable from multiple directions, and supplemented by rolling balls to reduce friction, so that the device can stably attach to the cable under various climatic conditions, achieving smooth and non-slip autonomous walking, and providing a reliable platform for subsequent de-icing operations.

[0016] Second, this utility model uses an electric push rod to drive the moving ring, and then the push bar links three staggered clamping blocks to rotate, realizing the automatic clamping and releasing of cables. The whole process is responsive, and the clamping force is balanced and stable, which not only greatly improves the work efficiency, but also avoids the complexity and potential risks of manual operation.

[0017] Third, this utility model sets a guide block and a toothed de-icing block on the rotating shaft of the clamping block, and links them with the clamping action, so that while the device clamps the cable, the de-icing block can automatically rotate to the working position and contact the vibration mechanism, realizing the automatic positioning of the de-icing component. The structure is compact and the logic is rigorous. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model from another perspective; Figure 3 This is a schematic diagram of the inverted structure of this utility model; Figure 4 This is a schematic diagram of the mobile control mechanism of this utility model.

[0019] In the diagram: 1. Outer shell; 2. Motion control mechanism; 201. Mounting frame; 202. Drive wheel; 203. Auxiliary wheel; 204. Walking track; 205. Servo motor; 206. Tensioning wheel; 3. Pressing and clamping mechanism; 301. Clamping block; 302. Support frame; 303. Moving ring; 304. Push bar; 305. Electric push rod; 306. Rolling ball; 4. De-icing mechanism; 401. Guide block; 402. De-icing block; 5. Vibration mechanism; 501. Vibration block; 502. Vibration arm; 503. Vibration motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1-4 As shown, this utility model provides a technical solution: a power transmission line cable anti-icing and de-icing device. This device is an automated equipment that can autonomously walk on power transmission cables and perform efficient de-icing. Its overall structure is a cylindrical shell 1, and all core components are integrated on or inside this shell 1. A mounting frame 201 is fixed on the top of the device, which is the basis for the movement of the entire device. A small tracked walking system is built on the mounting frame 201. This system consists of a drive wheel 202, two auxiliary wheels 203, and a set of walking tracks 204 that wrap around them. The three wheels roughly form a T-shape to ensure that the tracks can stably wrap around the cable. The surface of the tracks is specially made with raised stripes to increase the friction between the tracks and the cables and prevent slippage. A servo motor 205 is fixed on the outside of the mounting frame 201 and is specifically responsible for providing power to the drive wheel 202, thereby driving the entire device to move forward or backward on the cable. In order to ensure that the tracks maintain appropriate tension at all times, two adjustable tensioning wheels 206 are also added inside the mounting frame 201.

[0022] like Figure 1 , Figure 2 and Figure 3As shown, a support frame 302 is fixed on each side of the outer casing 1. Three clamping blocks 301 are hinged to these two support frames 302 via pivots. The three clamping blocks 301 are distributed with one on the left side and two on the right side of the device in an alternating layout. This creates a more stable and balanced triangular force when clamping the cable. The side of each clamping block 301 that contacts the cable is designed to be concave to match the curvature of the cable, and multiple freely rolling balls 306 are embedded within it. When the device moves, these balls 306 can convert sliding friction into rolling friction, greatly reducing travel resistance and protecting the insulation of the cable.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, the clamping power of the downward clamping mechanism 3 comes from an electric push rod 305 inside the housing 1. The top of the telescopic rod of this electric push rod 305 is connected to a movable ring 303 that can slide up and down on the housing 1. The movable ring 303 is hinged to the tail ends of three clamping blocks 301 through two push bars 304. When the electric push rod 305 is activated, pushing the movable ring 303 upward, the push bars 304 push the tail ends of the clamping blocks 301, causing the clamping blocks 301 to rotate around the pivot connected to the support frame 302, thereby retracting inward and firmly clamping the cable between the three clamping blocks 301 and the upper walking track 204, forming a stable "holding" posture. Conversely, when the electric push rod 305 retracts, the clamping blocks 301 are released.

[0024] On the rotating shaft of each clamping block 301, a guide block 401 is fixed. Inside the guide block 401, an arc-shaped de-icing block 402 is slidably connected. The inner side of the de-icing block 402 is machined with sharp teeth, which are specifically used to break and peel off the ice layer. In the initial state when the device is not clamping the cable, the de-icing block 402 is tilted. When the electric push rod 305 drives the clamping block 301 to rotate to the vertical clamping working posture, the de-icing block 402 also rotates, which is exactly above and to the side of the cable. At this time, its bottom end will contact the vibration mechanism 5 below and enter the standby state. In order to achieve bidirectional de-icing, this de-icing mechanism 4 is set at both the front and rear ends of the device, which can effectively de-ic the cable whether it is moving forward or backward.

[0025] like Figure 1 , Figure 2 and Figure 3As shown, the vibration mechanism 5 is the key power source for ice breaking. It consists of a vibrating block 501 mounted on the outer casing 1 and a vibrating motor 503 that provides power to it. Two symmetrical vibrating arms 502 extend from the vibrating block 501, and their tops can just abut against the bottom of the two front and rear de-icing blocks 402. When the device clamps the cable, the vibrating motor 503 starts, driving the vibrating block 501 to vibrate at high frequency. This vibration is directly transmitted to the de-icing blocks 402 through the vibrating arms 502. While the de-icing blocks 402 are vibrating, the teeth on their inner sides act like countless small hammers, continuously striking and scraping the ice on the cable, breaking it from the hard ice layer into small pieces, which are eventually detached under the combined action of gravity and the movement of the device.

[0026] The entire workflow is as follows: First, the device is hung on the cable from below or the side via the released clamping block 301 and the open track. This step can be performed manually by climbing the tower or by a drone for precise hoisting. After the device is in place, the electric push rod 305 is activated, driving the clamping block 301 to rotate inward and clamp the cable together with the track above, forming a stable holding posture. Next, the servo motor 205 of the movement control mechanism 2 is activated, driving the device to move smoothly on the cable. At the same time, the vibration motor 503 is activated, causing the de-icing block 402 to vibrate at high frequency, performing a comprehensive de-icing operation on the cable. After completing the de-icing task of a section of the line, the device can automatically stop, release the clamping mechanism, and be retrieved by the operator or a drone. The entire process is highly automated, from installation to operation to retrieval, with stable clamping, smooth movement, high de-icing efficiency, and minimal damage to the cable.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing and removing icing of power transmission line cables, characterized in that, include: Outer shell (1); A movement control mechanism (2) is fixed to the housing (1) and is used to control the movement of the device along the length of the cable; A downward clamping mechanism (3) is disposed on the housing (1) and cooperates with the movement control mechanism (2) for clamping the cable; The de-icing mechanism (4) is mounted on the pressing clamping mechanism (3). When the pressing clamping mechanism (3) is working, the de-icing mechanism (4) is in a working posture. A vibration mechanism (5) is provided on the housing (1) to cause the de-icing mechanism (4) in the working position to vibrate in order to remove the ice on the cable.

2. The anti-icing and de-icing device for power transmission line cables according to claim 1, characterized in that, The motion control mechanism (2) includes: Mounting bracket (201) is fixed to the top of the housing (1); The drive wheel (202) and at least one auxiliary wheel (203) are both movably connected to the mounting bracket (201) via a pivot. The walking track (204) is fitted on the outside of the drive wheel (202) and the auxiliary wheel (203) and is in contact with the cable; A servo motor (205) is fixed on the mounting bracket (201), and its output end is connected to the drive wheel (202) for driving the walking track (204) to rotate.

3. The anti-icing and de-icing device for power transmission line cables according to claim 2, characterized in that, The movement control mechanism (2) also includes at least one tensioning wheel (206), which is movably connected to the mounting frame (201) via a rotating shaft to maintain the tension of the walking track (204).

4. The anti-icing and de-icing device for power transmission line cables according to claim 1, characterized in that, The pressing and clamping mechanism (3) includes: At least two clamping blocks (301), the front ends of which are arc-shaped to accommodate the curvature of the cable; The support frame (302) is fixed to the outer shell (1), and the clamping block (301) is movably connected to the support frame (302) via a rotating shaft; A drive assembly, which is connected to the clamp (301) for driving the clamp (301) to rotate about its axis, so as to clamp or release the cable.

5. The anti-icing and de-icing device for power transmission line cables according to claim 4, characterized in that, The driving component includes: A movable ring (303) is movably connected to the outer casing (1); Push bar (304), one end of which is movably connected to the moving ring (303) via a rotating shaft, and the other end of which is movably connected to the tail end of the clamping block (301) via a rotating shaft; An electric push rod (305) is fixed inside the outer shell (1), and its telescopic end is fixedly connected to the moving ring (303). By driving the moving ring (303) to move up and down, the push bar (304) pushes and pulls the clamp (301) to rotate.

6. The anti-icing and de-icing device for power transmission line cables according to claim 4, characterized in that, The number of clamps (301) is three, one of which is located on one side of the device and the other two are located on the other side of the device, and they are distributed alternately.

7. The anti-icing and de-icing device for power transmission line cables according to claim 4, characterized in that, Several rolling balls (306) are movably connected to the inner side of the clamp (301), and the rolling balls (306) make rolling contact with the surface of the cable.

8. The anti-icing and de-icing device for power transmission line cables according to claim 1, characterized in that, The de-icing mechanism (4) includes: The guide block (401) is fixed on the rotating shaft of the clamping block (301) of the pressing clamping mechanism (3); An ice-removing block (402) is slidably connected to the inner side of the guide block (401). The ice-removing block (402) is arc-shaped and has teeth for breaking ice on its inner side. When the pressing clamping mechanism (3) is in the clamping working state, the de-icing block (402) is located on the circumferential outer side of the cable.

9. A device for preventing and removing ice from power transmission line cables according to claim 8, characterized in that, The de-icing mechanism (4) is provided in two sets, located on the front and rear sides of the device respectively.

10. A device for preventing and removing ice from power transmission line cables according to claim 8, characterized in that, The vibration mechanism (5) includes: Vibration block (501) is movably mounted on the outer casing (1); The vibrating arm (502) is fixed on the vibrating block (501), and its top end abuts against the de-icing block (402) of the de-icing mechanism (4); The vibration motor (503) is fixed inside the housing (1), and its output end is connected to the vibration block (501) for driving the vibration block (501) and the vibration arm (502) to generate vibration.

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