Power distribution line de-icing apparatus and method

Abstract

The application relates to a power distribution line deicing device and method. The impact vibrator of the power distribution line deicing device comprises a shell, a sliding part arranged in the shell, an impact vibration block and a motor. The sliding part is used for sliding under the driving of the motor to drive the impact vibration block to impact and vibrate the shell according to a preset impact frequency. The fixed frame connected with the shell of the impact vibrator is used for vibrating in the case that the impact vibration block impacts and vibrates the shell, so as to vibrate and deice the power distribution line fixed by the fixed frame. The power distribution line deicing device and method provided by the application can efficiently deice the power distribution line.

Description

Technical Field

[0001] This application relates to the field of power technology, and in particular to a device and method for de-icing power distribution lines. Background Technology

[0002] Ice accumulation on power distribution lines can lead to problems such as ice flashover tripping, conductor galloping, and damage to electrical equipment. When the ice thickness far exceeds the line's load-bearing capacity, the power system may even experience icing-related disasters such as tower collapse, power line breaks, and large-scale power outages. This not only threatens the safety of the power grid but also damages its structure.

[0003] Traditional manual de-icing operations mainly rely on manual mechanical knocking, which is inefficient and has limited de-icing effect.

[0004] Therefore, how to efficiently de-ice power distribution lines has become an urgent problem to be solved. Summary of the Invention

[0005] Therefore, it is necessary to provide a power distribution line de-icing device and method that can efficiently de-ic the power distribution lines, addressing the aforementioned technical problems.

[0006] In a first aspect, embodiments of this application provide a power distribution line de-icing device, the device comprising:

[0007] An impact vibrator includes a housing, a sliding part, an impact vibration block, and a motor disposed within the housing. The sliding part is used to slide under the drive of the motor to drive the impact vibration block to impact and vibrate the housing at a preset impact frequency.

[0008] The mounting bracket connected to the housing is used to vibrate when the impact vibration block impacts and vibrates the housing, so as to vibrate and de-ice the power distribution line fixed to the mounting bracket.

[0009] In one embodiment, the sliding portion includes:

[0010] At least one guide rail is fixedly connected to two opposing inner walls of the housing;

[0011] At least one spring is sleeved on the surface of the guide rail, and one end of the spring is in contact with the first end of the impact vibration block;

[0012] A sliding block, the second end of which is away from the first end contacts the other end of the spring, the sliding block is used to slide along the guide rail under the drive of the motor, and squeeze the spring to generate deformation during the sliding process, so that the spring drives the impact vibration block to impact and vibrate the housing at a preset impact frequency during the deformation recovery process.

[0013] In one embodiment, the sliding portion includes:

[0014] A rotating shaft, used to rotate under the drive of the motor;

[0015] An eccentric wheel is fixedly connected to the rotating shaft. The eccentric wheel is used to rotate eccentrically as the rotating shaft rotates, so as to drive the sliding block to slide along the guide rail.

[0016] In one embodiment, the elastic potential energy stored by the spring during compression and the elastic force released by the spring during deformation recovery satisfy the following constraints:

[0017]

[0018] F = kx1

[0019] x1=x travel +x0

[0020] Where E is the elastic potential energy, k is the preset spring constant, x1 is the maximum compression of the spring, x0 is the pre-compression of the spring, and x travel F is the compression of the spring in the impact vibrator, and F is the elastic force.

[0021] In one embodiment, the magnitude of the preset stiffness coefficient is positively correlated with the thickness of the ice layer on the surface of the power distribution cable.

[0022] In one embodiment, the preset impact frequency is calculated according to the following formula:

[0023]

[0024] Wherein, Δf is the preset impact frequency, and ω is the angular velocity of the rotating shaft.

[0025] In one embodiment, the power distribution line de-icing device is installed at 1 / 3 of the distance between adjacent line towers, and / or, the power distribution line de-icing device is installed at 2 / 3 of the distance between adjacent line towers.

[0026] In one embodiment, the mounting bracket includes:

[0027] A fixed bracket, one end of which is provided with a first clamp;

[0028] A vertical telescopic bracket, one end of which is provided with a second clamp, the first clamp and the second clamp being used to cooperate in fixing the power distribution cable.

[0029] In one embodiment, the power distribution line de-icing device further includes a connector that is fixedly connected to the housing, the end of the fixed bracket away from the first clamp, and the end of the vertical telescopic bracket away from the second clamp.

[0030] Secondly, embodiments of this application also provide a method for de-icing power distribution lines, the method comprising:

[0031] The sliding part slides under the drive of the motor to drive the impact vibration block to impact the vibration housing at a preset impact frequency;

[0032] The mounting bracket vibrates when the impact vibration block impacts and vibrates the housing, thereby vibrating and de-icing the power distribution cable fixed to the mounting bracket.

[0033] The aforementioned power distribution line de-icing device and method utilizes a motor-driven sliding part in an impact vibrator to drive an impact vibration block to impact a vibration housing at a preset impact frequency. A fixed frame connected to the housing vibrates while the impact vibration block impacts the vibration housing, thereby vibrating and de-icing the power distribution line fixed to the frame. Traditional manual de-icing operations rely primarily on manual mechanical hammering, resulting in low efficiency and limited effectiveness. This embodiment, through a mechanical vibration structure, can transfer vibration energy to the power distribution line, significantly saving manpower. Furthermore, the vibration-based de-icing method provides excellent results and improves the efficiency of power distribution line de-icing. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of a power distribution line de-icing device in one embodiment;

[0035] Figure 2 This is a schematic diagram of the sliding part of the power distribution line de-icing device in one embodiment;

[0036] Figure 3 This is a schematic diagram of the mounting bracket for the power distribution line de-icing device in one embodiment;

[0037] Figure 4 This is a flowchart illustrating a method for de-icing power distribution lines in one embodiment;

[0038] Figure 5 This is a flowchart illustrating a method for de-icing power distribution lines in another embodiment.

[0039] Explanation of reference numerals in the attached figures:

[0040] Fixed bracket: 101; First clamp: 102; Second clamp: 103; Vertical telescopic bracket: 104; Power distribution cable: 105; Connector: 106; Impact vibration block: 201; Spring: 202; Sliding block: 203; Eccentric wheel: 204; Guide rail: 205; Guide rail: 206; Rotating shaft: 207; Spring: 208; Housing: 209. Detailed Implementation

[0041] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0042] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0047] In one embodiment, such as Figure 1 As shown, a power distribution line de-icing device is provided. This device includes an impact vibrator, which comprises a housing 209 and a sliding part, an impact vibration block, and a motor disposed within the housing (the sliding part, impact vibration block, and motor are...). Figure 1 (Not shown in the image), the sliding part is used to slide under the drive of the motor to drive the impact vibration block 201 to impact the vibration housing 209 according to the preset impact frequency.

[0048] Please continue reading Figure 1 The power distribution cable de-icing device also includes a fixed frame connected to the housing 209 of the impact vibrator, which is used to vibrate when the impact vibrator block impacts the housing 209 to vibrate and de-ice the power distribution cable 105 fixed to the fixed frame.

[0049] In this embodiment, when de-icing of the power distribution line 105 is required, the power distribution line de-icing device can be installed between adjacent line towers. The shape of the housing 209 can be regular (e.g., cuboid, cube, etc.) or irregular. Depending on the shape of the housing 209, an appropriate installation method is selected for fixed installation. After the power distribution line de-icing device is installed, the power distribution line 105 is fixed using a mounting bracket.

[0050] After the power distribution cable 105 is fixed, the motor is powered on. After the motor is powered on, it starts to rotate at a preset speed. During the rotation, the motor drives the sliding part to slide. For example, the sliding part can convert the rotation amount into the translation amount through the relevant meshing parts, thereby sliding.

[0051] During the sliding process, the sliding part drives the impact vibration block 201 to impact the vibration housing 209 at a preset impact frequency. This preset impact frequency can be set as needed during implementation. In this way, when the impact vibration block 201 impacts the vibration housing 209 at the preset impact frequency, the housing 209 also vibrates synchronously and regularly.

[0052] During the vibration of the housing 209, the fixed frame connected to the housing 209 vibrates. When the fixed frame vibrates, it can vibrate and de-ice the fixed power distribution line 105, so as to achieve rapid de-icing of the power distribution line 105.

[0053] In one possible implementation, a power distribution line de-icing device can be installed between each adjacent line tower. In another possible implementation, multiple power distribution line de-icing devices can also be installed at intervals between each adjacent line tower. During the de-icing process, the power distribution line de-icing devices between each adjacent line tower can vibrate to de-ic, or they can vibrate to de-ic, without any specific limitations.

[0054] Overall, the aforementioned power distribution line de-icing device utilizes a motor-driven sliding part in the impact vibrator to drive the impact vibration block to impact the vibration housing at a preset impact frequency. A fixed frame connected to the housing vibrates while the impact vibration block impacts the vibration housing, thus vibrating to de-ice the power distribution line fixed to the frame. Traditional manual de-icing operations rely primarily on manual mechanical hammering, resulting in low efficiency and limited effectiveness. This embodiment, through a mechanical vibration structure, can transfer vibration energy to the power distribution line, significantly saving manpower. Furthermore, the vibration-based de-icing method provides better results and improves the efficiency of power distribution line de-icing.

[0055] In one embodiment, the structure of the sliding part of the power distribution line de-icing device is described. The sliding part includes at least one guide rail, at least one spring, a sliding block, a rotating shaft, and an eccentric wheel.

[0056] At least one guide rail is fixedly connected to two opposing inner walls of the housing. At least one spring is sleeved on the surface of the guide rail, with one end of the spring contacting the first end of the impact vibration block; the second end of the sliding block, away from the first end, contacts the other end of the spring. The sliding block is used to slide along the guide rail under the drive of the motor, and during the sliding process, it compresses the spring to generate deformation, so that the spring drives the impact vibration block to impact the housing at a preset impact frequency during the deformation recovery process. A rotating shaft is used to rotate under the drive of the motor; an eccentric wheel is fixedly connected to the rotating shaft, and the eccentric wheel is used to rotate eccentrically as the rotating shaft rotates, so as to drive the sliding block to slide along the guide rail.

[0057] In one possible implementation, such as Figure 2As shown, a sliding part of a power distribution line de-icing device is provided, which has two guide rails and two springs. The sliding part includes a spring 202, a sliding block 203, an eccentric wheel 204, a guide rail 205, a guide rail 206, a rotating shaft 207, and a spring 208.

[0058] Of course, in other embodiments, the number of guide rails and springs can also be 1, 3, etc., and no specific limitation is made here.

[0059] For example, the spring 202, sliding block 203, eccentric wheel 204, guide rail 205, guide rail 206, rotating shaft 207, and spring 208 can all be made of metal. Please continue to see... Figure 2 Guide rails 205 and 206 are fixedly connected to two opposing inner walls of housing 209. For example, guide rails 205 and 206 can be vertically installed inside housing 209, with the upper ends of guide rails 205 and 206 fixed to the upper end face of housing 209 and the lower ends of guide rails 205 and 206 fixed to the lower end face of housing 209.

[0060] Springs 202 and 208 are sleeved on the surfaces of guide rails 205 and 206, with one end of each spring contacting the first end of the impact vibration block 201. The second end of the sliding block 203, away from the first end, contacts the other ends of springs 202 and 208. The sliding block 203 slides along guide rails 205 and 206 under the drive of a motor, and during this sliding process, it compresses springs 202 and 208, causing deformation. This allows springs 202 and 208 to drive the impact vibration block 201 to impact the vibration housing 209 at a preset impact frequency during deformation recovery. A rotating shaft 207 rotates under the drive of a motor. An eccentric wheel 204 is fixedly connected to the rotating shaft 207 and rotates eccentrically as the rotating shaft 207 rotates, driving the sliding block 203 to slide along guide rails 205 and 206.

[0061] In one embodiment, such as Figure 3 The structure of the mounting bracket for the power distribution line de-icing device is described below. The mounting bracket includes a fixed bracket 101, a first clamp 102, a second clamp 103, a vertical telescopic bracket 104, and a connector 106.

[0062] The fixed bracket 101, the first clamp 102, the second clamp 103, the vertical telescopic bracket 104, and the connector 106 are all made of metal. The fixed bracket 101 has the first clamp 102 at one end, and the vertical telescopic bracket 104 has the second clamp 103 at one end. The first clamp 102 and the second clamp 103 are used to fix the power distribution cable 105. The connector 106 is fixedly connected to the housing 109, the end of the fixed bracket 101 away from the first clamp 102, and the end of the vertical telescopic bracket 104 away from the second clamp 103.

[0063] When the housing 209 vibrates, the vibration energy is transmitted through the connector 106 to the first clamp 102 and the second clamp 103 connected to the fixed bracket 101 and the vertical telescopic bracket 104, thereby vibrating and de-icing the power distribution line 105.

[0064] In one possible implementation, the power distribution line de-icing device is installed at one-third of the distance between adjacent line towers, and / or at two-thirds of the distance between adjacent line towers; no specific limitation is made here. The power distribution line de-icing device is installed by hanging.

[0065] Among them, poles and towers are the supporting structures used to support overhead power lines. Poles and towers are mostly made of steel or reinforced concrete and are the main supporting structures for overhead power lines.

[0066] In this embodiment, the power distribution line de-icing device is installed between adjacent line towers. The device is easy to install and disassemble and can perform power distribution line de-icing operations with high efficiency.

[0067] In one embodiment, the elastic potential energy stored in springs 202 and 208 during compression and the elastic force released by the springs during deformation recovery respectively satisfy the following constraints:

[0068]

[0069] F = kx1

[0070] x1=x travel +x0

[0071] Where E is the elastic potential energy, k is the preset spring constant, x1 is the maximum compression of the spring, x0 is the pre-compression of the spring, and x travel Let F be the compression of the spring in the impact vibrator, and F be the elastic force.

[0072] The spring stiffness coefficient k is positively correlated with the thickness of the ice layer on the surface of the power distribution cable. The selection criteria for the spring stiffness coefficient for ice layers of different thicknesses are as follows:

[0073] 1 4.0 2 4.5 3 5 4 6 5 7

[0074] When the rotating shaft 207 rotates continuously, the impact vibration block 201 can continuously generate impact vibrations. The preset impact frequency is calculated according to the following formula:

[0075]

[0076] Wherein, Δf is the preset impact frequency, and ω is the angular velocity of the rotating shaft. The vibration frequency of the impact vibrator can be controlled by controlling the rotational speed of the rotating shaft 207, thereby controlling the de-icing speed. For example, when the drive motor is turned on, the rotating shaft 207 is rotated at a speed of π / 20 rad / s. At this time, the time interval between the two vibration impacts generated by the device is 20s.

[0077] In this embodiment, by selecting the preset stiffness coefficient of the spring according to the ice thickness, the power distribution line de-icing device can perform de-icing operations more reliably, improving de-icing efficiency. Controlling the rotational speed of the shaft to control the vibration frequency of the impact vibrator, thereby controlling the de-icing speed, further improves the reliability of the device.

[0078] In one embodiment, the power distribution line de-icing device includes an impact vibrator and a mounting frame. The impact vibrator includes a housing 209, a sliding part, an impact vibration block 201, and a motor disposed within the housing. The sliding part is used to slide under the drive of the motor to drive the impact vibration block 201 to impact and vibrate the housing at a preset impact frequency. The mounting frame is connected to the housing 209 of the impact vibrator and is used to vibrate when the impact vibration block 201 impacts and vibrates the housing 209 to vibrate and de-ic the power distribution line 105 fixed to the mounting frame.

[0079] The sliding part includes a spring 202, a sliding block 203, an eccentric wheel 204, a guide rail 205, a guide rail 206, a rotating shaft 207, and a spring 208. Springs 202 and 208 are sleeved on the surfaces of guide rails 205 and 206, with one end of each spring contacting the first end of the impact vibration block 201. The second end of the sliding block 203, away from the first end, contacts the other ends of springs 202 and 208. The sliding block 203 slides along guide rails 205 and 206 under the drive of a motor, and during the sliding process, it compresses springs 202 and 208 to cause deformation, so that springs 202 and 208 drive the impact vibration block 201 to impact the vibration housing 209 at a preset impact frequency during the deformation recovery process. The rotating shaft 207 is used to rotate under the drive of the motor. The eccentric wheel 204 is fixedly connected to the rotating shaft 207. The eccentric wheel 204 is used to rotate eccentrically as the rotating shaft 207 rotates, so as to drive the sliding block 203 to slide along the guide rail 205 and the guide rail 206.

[0080] The mounting bracket includes a fixed bracket 101, one end of which is provided with a first clamp 102. A vertical telescopic bracket 104 is also included, one end of which is provided with a second clamp 103. The first clamp 102 and the second clamp 103 are used to fix the power distribution cable 105. A connector 106 is fixedly connected to the housing 109, the end of the fixed bracket 101 away from the first clamp 102, and the end of the vertical telescopic bracket 104 away from the second clamp 103.

[0081] The above embodiments utilize a mechanical vibration structure to transfer vibration energy to the power distribution line, greatly saving manpower. Furthermore, the vibration method provides a good de-icing effect and can improve the efficiency of de-icing the power distribution line.

[0082] In one embodiment, such as Figure 4 As shown, this embodiment relates to a method for de-icing power distribution lines using the de-icing device described in any of the above embodiments. The process includes the following steps:

[0083] Step 401: The sliding part slides under the drive of the motor to drive the impact vibration block 201 to impact the vibration housing 209 at a preset impact frequency.

[0084] The rotating shaft 207 rotates under the drive of the motor, and the eccentric wheel 204 rotates eccentrically with the rotating shaft 207, causing the driving sliding block 203 to slide along the guide rail 205 and guide rail 206. During the sliding process, the spring 202 and spring 208 are compressed and deformed, so that the spring drives the impact vibration block 201 to impact the vibration housing 209 at a preset impact frequency during the deformation recovery process.

[0085] In step 402, the fixing frame 209 vibrates when the impact vibration block impacts the vibration housing 209, so as to vibrate and de-ice the power distribution line 105 fixed by the fixing frame.

[0086] The housing 209 transmits vibration energy through the connector 106 to the first clamp 102 and the second clamp 103 connected to the fixed bracket 101 and the vertical telescopic bracket 104, thereby vibrating and de-icing the power distribution line 105.

[0087] Before proceeding to step 401, such as Figure 5 As shown, it also includes the following steps:

[0088] Step 501: Select the spring constant k of springs 202 and 208 according to the ice thickness.

[0089] The elastic potential energy stored in springs 202 and 208 during compression and the elastic force released by the springs during deformation recovery satisfy the following constraints respectively:

[0090]

[0091] F = kx1

[0092] x1=x travel +x0

[0093] Where E is the elastic potential energy, k is the preset spring constant, x1 is the maximum compression of the spring, x0 is the pre-compression of the spring, and x travel Let F be the compression of the spring in the impact vibrator, and F be the elastic force.

[0094] The spring stiffness coefficient k is positively correlated with the thickness of the ice layer on the surface of the power distribution cable. The selection criteria for the spring stiffness coefficient for ice layers of different thicknesses are as follows:

[0095] 1 4.0 2 4.5 3 5 4 6 5 7

[0096] Step 502: Calculate the preset impact frequency.

[0097] The preset impact frequency is calculated using the following formula:

[0098]

[0099] Wherein, Δf is the preset impact frequency, and ω is the angular velocity of the rotating shaft. The vibration frequency of the impact vibrator can be controlled by controlling the rotation speed of the rotating shaft 207, thereby controlling the de-icing speed.

[0100] In one possible implementation, the drive motor is turned on to rotate the shaft 207 at a speed of π / 20 rad / s, at which time the time interval between the two vibration impacts generated by the device is 20s.

[0101] In this embodiment, by selecting the preset stiffness coefficient of the spring according to the ice thickness, the power distribution line de-icing device can perform de-icing operations more reliably, improving de-icing efficiency. Controlling the rotational speed of the shaft to control the vibration frequency of the impact vibrator, thereby controlling the de-icing speed, further improves the reliability of the device.

[0102] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0103] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A power distribution line de-icing device, characterized in that, include: An impact vibrator includes a housing, a sliding part, an impact vibration block, and a motor disposed within the housing. The sliding part slides under the drive of the motor to drive the impact vibration block to periodically and continuously impact and vibrate the housing at a preset impact frequency. The sliding part includes: at least one guide rail fixedly connected to two opposing inner walls of the housing; at least one spring sleeved on the surface of the guide rail, one end of the spring contacting a first end of the impact vibration block; and a sliding block, the second end of which is away from the first end contacting the other end of the spring. The sliding block slides continuously and reciprocally along the guide rail under the drive of the motor, and periodically compresses the spring to generate deformation during the continuous sliding process, so that the spring drives the impact vibration block to impact and vibrate the housing at a preset impact frequency during each deformation recovery process. The sliding part further includes: a rotating shaft for continuous rotation under the drive of the motor; and an eccentric wheel fixedly connected to the rotating shaft, the eccentric wheel for eccentric rotation as the rotating shaft rotates, to drive the sliding block to continuously and reciprocate along the guide rail. The mounting bracket connected to the housing is used to vibrate when the impact vibration block impacts and vibrates the housing, so as to vibrate and de-ice the power distribution line fixed to the mounting bracket.

2. The power distribution line de-icing device according to claim 1, characterized in that, The elastic potential energy stored in the spring during compression and the elastic force released by the spring during deformation recovery satisfy the following constraints: in, It is elastic potential energy. The spring constant is the preset stiffness coefficient. This is the maximum compression of the spring. The pre-compression of the spring. The compression of the spring in the impact vibrator. The elastic force is described above.

3. The power distribution line de-icing device according to claim 2, characterized in that, The magnitude of the preset stiffness coefficient is positively correlated with the thickness of the ice layer on the surface of the power distribution cable.

4. The power distribution line de-icing device according to claim 1, characterized in that, The preset impact frequency is calculated according to the following formula: in, The preset impact frequency, ω is the angular velocity of the rotating shaft.

5. The power distribution line de-icing device according to claim 1, characterized in that, The power distribution line de-icing device is installed at 1 / 3 of the distance between adjacent power line towers, and / or, the power distribution line de-icing device is installed at 2 / 3 of the distance between adjacent power line towers.

6. The power distribution line de-icing device according to claim 1, characterized in that, The fixing frame includes: A fixed bracket, one end of which is provided with a first clamp; A vertical telescopic bracket, one end of which is provided with a second clamp, the first clamp and the second clamp being used to cooperate in fixing the power distribution cable.

7. The power distribution line de-icing device according to claim 6, characterized in that, It also includes a connector, which is fixedly connected to the housing, the end of the fixed bracket away from the first clamp, and the end of the vertical telescopic bracket away from the second clamp.

8. A method for de-icing power distribution lines, characterized in that, The method for the power distribution line de-icing device as described in any one of claims 1-7 comprises: The sliding part slides under the drive of the motor to drive the impact vibration block to impact the vibration housing at a preset impact frequency; The mounting bracket vibrates when the impact vibration block impacts and vibrates the housing, thereby vibrating and de-icing the power distribution cable fixed to the mounting bracket.

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