Power transmission line deicing device

Abstract

The utility model discloses a power transmission line deicing device, which relates to the technical field of power transmission line maintenance and comprises a shell, two fixed wheels arranged on the inner top wall of the shell along the length direction of the shell, a linear transmission mechanism positioned between the two fixed wheels and capable of moving along the vertical direction of the shell, and two extrusion pieces positioned in the shell and capable of moving along the vertical direction of the shell. The extrusion part is used for bending the power transmission line and comprises an adjusting wheel and a connecting rod, the adjusting wheel is rotationally arranged on the inner bottom wall of the shell in the length direction of the power transmission line and located between the two fixed wheels, the height of the top end of the adjusting wheel is lower than that of the bottom ends of the fixed wheels initially, and one end of the connecting rod is rotationally connected to the adjusting wheel. By setting the adjusting wheel as a rotatable lifting structure and combining a multi-point arrangement mode, the power transmission line is bent and deformed at multiple positions at the same time, the disturbance effect of an ice layer can be remarkably enhanced, the cracking efficiency of an ice coating layer can be improved, and the overall deicing performance of the deicing device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of power transmission line maintenance technology, specifically to a power transmission line de-icing device. Background Technology

[0002] In cold regions, power transmission lines are highly susceptible to icing. The ice layer on the line surface, under the influence of gravity, places an additional load on the conductors and tower structures, potentially leading to conductor breakage or tower collapse and causing widespread power outages. Therefore, de-icing of power transmission lines is necessary.

[0003] In existing technologies, bending deformation is usually applied to the transmission line to enhance the cracking effect of the icing layer. However, traditional methods often use electric actuators or rigid push rods to directly press the conductor upwards, causing the entire transmission line to deform together. This can easily lead to insufficient deformation of local transmission lines, resulting in a weak cracking effect of the icing layer. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a power transmission line de-icing device.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A power transmission line de-icing device, comprising:

[0007] case;

[0008] Two fixed wheels are disposed on the inner top wall of the housing along the length of the housing.

[0009] A linear transmission mechanism, located between two fixed wheels, can move vertically along the housing;

[0010] Two extrusion members, located inside the aforementioned housing, are used for bending the power transmission line. The extrusion members include:

[0011] An adjusting wheel is rotatably mounted on the bottom wall of the housing along the length of the power transmission line, and is located between two fixed wheels. Initially, the height of the top of the adjusting wheel is lower than the height of the bottom of the fixed wheels.

[0012] The connecting rod has one end rotatably connected to the adjusting wheel and the other end hinged to the movable end of the linear transmission mechanism.

[0013] When the movable end of the linear transmission mechanism is pulled down, the movable end drives the adjusting wheel to rotate until the height of the top of the adjusting wheel is higher than the height of the bottom of the fixed wheel, thus squeezing and deforming the transmission line.

[0014] Preferably, in the initial state of the two aforementioned adjusting wheels, the gap between the adjusting wheel and the fixed wheel is greater than the cross-sectional dimension of the power transmission line.

[0015] Preferably, the ratio of the height adjustment range of the aforementioned adjusting wheel to the diameter of the transmission line is 2:1.

[0016] Preferably, a hook is fixed to the top of the movable end of the linear transmission mechanism, and the vertical projection of the hook penetrates the diameter of the transmission line.

[0017] Preferably, the extrusion member further includes a rotating rod, the bottom end of which is rotatably disposed on the bottom wall of the housing, and the adjusting wheel is fixed to the free end of the rotating rod.

[0018] Preferably, the aforementioned rotating rod is tilted away from the direction of the linear transmission mechanism.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. By setting the adjusting wheel as a rotatable lifting structure and combining it with a multi-point arrangement, the power transmission line can be bent and deformed at multiple locations simultaneously, which can significantly enhance the disturbance effect of the ice layer, improve the breaking efficiency of the ice layer, and enhance the overall de-icing performance of the de-icing device.

[0021] 2. By setting a hook structure that projects vertically through the conductor, a downward concentrated pressure can be applied after the adjusting wheel lifts the transmission line, enhancing the degree of local bending deformation of the conductor, thereby further promoting ice breakage and effectively improving the efficiency of ice layer removal.

[0022] 3. The initial gap between the adjusting wheel and the fixed wheel is larger than the diameter of the transmission line, which can ensure that the device avoids interference with the conductor when it is not in operation. Attached Figure Description

[0023] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0024] Figure 1 This is a schematic diagram of the de-icing device for this transmission line;

[0025] Figure 2 for Figure 1 A diagram from one side;

[0026] Figure 3 for Figure 2 A schematic diagram of the second state.

[0027] Explanation of annotations in the image:

[0028] 11. Housing; 12. Fixed wheel; 13. Linear transmission mechanism;

[0029] 21. Rotating rod; 22. Adjusting wheel; 23. Connecting rod;

[0030] 31. Hook. Detailed Implementation

[0031] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0032] Example

[0033] like Figures 1-3 As shown, a power transmission line de-icing device includes a housing 11, two fixed wheels 12, a linear transmission mechanism 13, and two extrusion components. The housing 11 is used to mount the fixed wheels 12, the linear transmission mechanism 13, the extrusion components, and other structures. A drive motor is mounted on each fixed wheel 12, which drives the fixed wheels 12 to rotate via a drive belt or chain, facilitating the movement of the power transmission line de-icing device. The linear transmission mechanism 13 can be a hydraulic / pneumatic telescopic rod or similar structure, enabling the hook 31 and connecting rod 23 to change their height.

[0034] In one embodiment, such as Figures 2-3 As shown, two fixed wheels 12 are arranged on the inner top wall of the housing 11 along the length direction of the housing 11. The linear transmission mechanism 13 is located between the two fixed wheels 12 and can move along the vertical direction of the housing 11. The movable end of the linear transmission mechanism 13 is initially in the extended state.

[0035] In one embodiment, such as Figures 2-3 As shown, two extrusion members are located inside the housing 11, which are used to bend the power transmission line. The extrusion member includes an adjusting wheel 22, which is rotatably disposed on the bottom wall of the housing 11 along the length of the power transmission line and is located between two fixed wheels 12. Initially, the height of the top of the adjusting wheel 22 is lower than the height of the bottom of the fixed wheel 12. A connecting rod 23 is rotatably connected to the adjusting wheel 22 at one end and hinged to the movable end of the linear transmission mechanism 13 at the other end. When the movable end of the linear transmission mechanism 13 is pulled down, the movable end drives the adjusting wheel 22 to rotate until the height of the top of the adjusting wheel 22 is higher than the height of the bottom of the fixed wheel 12, thus extruding and deforming the power transmission line.

[0036] By pressing the rotating rod 21 with the connecting rod 23, the rod tilts away from the linear transmission mechanism 13. The height of the adjusting wheel 22 decreases with the rotation of the rotating rod 21, allowing the transmission line to be positioned between the fixed wheel 12 and the adjusting wheel 22. This causes the movable end of the linear transmission mechanism 13 to retract, moving the end of the connecting rod 23 connected to the linear transmission mechanism 13 downwards. This pulls the rotating rod 21 to rotate in a near-vertical direction, raising the height of the adjusting wheel 22 so that the top of the adjusting wheel 22 is higher than the bottom of the fixed wheel 12. The deformation of the transmission line caused by the compression of the adjusting wheel 22 and the fixed wheel 12 leads to the breakage of the wire and its fall off in a deformed state.

[0037] During this process, when the movable end of the linear transmission mechanism 13 contracts, it will drive the hook 31 to move downward. After the adjusting wheel 22 and the fixed wheel 12 squeeze the power transmission line to deform, the height of the hook 31 is lower than the height of the top of the adjusting wheel 22. The hook 31 can press down on the power transmission line between the two adjusting wheels 22, improve the deformation effect of the power transmission line, improve the breaking effect, and improve the de-icing effect of the power transmission line.

[0038] In one embodiment, such as Figures 1-3 As shown, in the initial state, the gap between the two adjusting wheels 22 and the fixed wheel 12 is larger than the cross-sectional dimension of the transmission line. The two adjusting wheels 22 are not in contact with the transmission line in the initial state, and the top of the adjusting wheel 22 is lower than the bottom of the fixed wheel 12. Therefore, before the adjustment action is performed, a gap larger than the diameter of the transmission line is formed between the adjusting wheel 22 and the fixed wheel 12. This helps to avoid unnecessary friction or interference between the adjusting wheels 22 and the transmission line during equipment placement or movement, ensuring that the device is in a "standby state" before startup and reducing the risk of stress concentration during the initial loading of the transmission line.

[0039] In one embodiment, such as Figures 2-3 As shown, the ratio of the height adjustment range of the adjusting wheel 22 to the diameter of the transmission line is 2:1. The adjustable lifting height range of the adjusting wheel 22 is not less than twice the diameter of the transmission line, that is, the height space from below the bottom of the conductor to above the top of the conductor by at least one conductor diameter. By designing a large lifting stroke, the adjusting wheel 22 can not only achieve slight bending but also cause a large deformation, thereby significantly improving the disturbance to the ice layer and increasing the efficiency of ice layer breakage and detachment.

[0040] In one embodiment, such as Figures 1-3 As shown, a hook 31 is fixed to the top of the movable end of the linear transmission mechanism 13. The vertical projection of the hook 31 penetrates the diameter of the transmission line. After the adjusting wheel 22 lifts the conductor, the hook 31 presses further upwards onto the conductor, which can apply additional concentrated stress to the conductor in the bent state, increase the local deformation of the conductor, and further promote ice breakage.

[0041] In one embodiment, such as Figures 1-3 As shown, the extrusion component also includes a rotating rod 21. The bottom end of the rotating rod 21 is rotatably mounted on the bottom wall of the housing 11. An adjusting wheel 22 is fixed to the free end of the rotating rod 21. The adjusting wheel 22 is fixed to the rotating rod 21, which has a degree of freedom at one end. The bottom end of the rotating rod 21 is rotatably mounted on the bottom of the housing 11. When the linear transmission mechanism 13 pulls down through the connecting rod 23, it drives the rotating rod 21 to swing around the rotation axis at the bottom end, thereby raising the adjusting wheel 22. The lever action amplifies the control force of the linear transmission mechanism 13, enabling the adjusting wheel 22 to obtain sufficient lifting height within a limited stroke, while also possessing the advantages of compact structure and stable transmission. The rotating rod 21 is inclined away from the linear transmission mechanism 13. The rotating rod 21 is initially arranged to be inclined away from the linear transmission mechanism 13, and the adjusting wheel 22 is at a lower height in this state. When the linear transmission mechanism 13 retracts, it drives the rotating rod 21 to move towards the vertical direction, causing the adjusting wheel 22 to rise. The tilted initial layout, combined with the rotation trajectory design, makes the lifting action of the adjusting wheel 22 more gentle and stable, avoiding structural impact caused by excessive instantaneous loading during startup, which is conducive to improving the service life and operational reliability of the device.

[0042] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A power line de-icing device, characterized by The utility model relates to a transmission line deformation device, including: A shell (11); Two fixed wheels (12) are arranged in the shell (11) along the length direction of the shell (11) and are arranged on the top wall of the shell (11); A linear transmission mechanism (13) is arranged between the two fixed wheels (12) and can move vertically along the shell (11); Two extrusion pieces are arranged in the shell (11) and are used for bending the transmission line, and the extrusion piece includes: An adjusting wheel (22) is arranged on the bottom wall of the shell (11) along the length direction of the transmission line and is arranged between the two fixed wheels (12), and the height of the top end of the adjusting wheel (22) is lower than the height of the bottom end of the fixed wheel (12) in the initial state; A connecting rod (23) is rotatably connected to the adjusting wheel (22) at one end and is hingedly connected to the movable end of the linear transmission mechanism (13) at the other end; When the movable end of the linear transmission mechanism (13) is pulled downward, the movable end drives the adjusting wheel (22) to rotate to the height of the top end of the adjusting wheel (22) being higher than the height of the bottom end of the fixed wheel (12), and the transmission line is deformed.

2. A power line de-icing device according to claim 1, characterized in that: In the initial state of the two adjusting wheels (22), the gap between the adjusting wheel (22) and the fixed wheel (12) is greater than the cross-sectional dimension of the transmission line.

3. A power line de-icing device according to claim 2, characterised in that: The ratio of the height adjustment range of the adjusting wheel (22) to the diameter of the transmission line is 2:

1.

4. A power line de-icing device according to claim 3, characterised in that: A hook (31) is fixed to the top of the movable end of the linear transmission mechanism (13), and the projection of the hook (31) in the vertical direction penetrates the diameter of the transmission line.

5. A power line de-icing device according to claim 1, characterized in that: The extrusion piece further includes a rotating rod (21), the bottom end of the rotating rod (21) is rotatably arranged on the bottom wall of the shell (11), and the adjusting wheel (22) is fixed to the free end of the rotating rod (21).

6. A power line de-icing device according to claim 5, characterised in that: The rotating rod (21) is inclined away from the linear transmission mechanism (13).

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