Mountain wind power plant lightning protection reconstruction cable laying device

Abstract

The utility model relates to the technical field of mountain land wind farm operation and maintenance equipment, especially, it relates to a mountain land wind farm lightning protection reconstruction cable laying device, it can adapt to the complex terrain of mountain land, realizes cable efficient laying and tension stable control, guarantees construction safety and laying quality, including self -adaptation terrain walking chassis, cable reel bearing mechanism, tension adjusting assembly, cable guide mechanism, auxiliary support mechanism, controller and power system, cable reel bearing mechanism, cable guide mechanism, tension adjusting assembly are in succession along the advancing direction of self -adaptation terrain walking chassis, auxiliary support mechanism sets up in the bottom or side of self -adaptation terrain walking chassis, controller is connected with self -adaptation terrain walking chassis, cable reel bearing mechanism, tension adjusting assembly, cable guide mechanism, auxiliary support mechanism and power system control respectively, and power system provides power for the component.

Description

Technical Field

[0001] This utility model relates to the technical field of operation and maintenance equipment for mountain wind farms, and in particular to a cable laying device for lightning protection retrofitting of mountain wind farms. Background Technology

[0002] Mountain wind farms are typically built on high-altitude, complex terrain ridges or mountaintops, areas prone to frequent lightning strikes, posing a significant risk of lightning damage to wind turbines and power lines. Lightning strikes not only directly damage wind turbines, but the resulting surge currents can also propagate through cables, causing secondary damage to electrical equipment such as transformers and substations. Therefore, lightning protection upgrades for mountain wind farms are crucial for ensuring their safe and stable operation.

[0003] In lightning protection upgrade projects, it is often necessary to re-lay or add grounding cables, shielded cables, etc. However, steep mountainous terrain, hard rocks, and difficult transportation pose significant challenges to cable laying. Traditional cable laying methods mostly use fixed structures, which are inconvenient to transport and cannot flexibly adjust the height and angle according to the mountainous terrain, resulting in low laying efficiency. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides a cable laying device for lightning protection renovation of mountain wind farms.

[0005] This utility model discloses a cable laying device for lightning protection retrofitting in mountainous wind farms, comprising an adaptive terrain walking chassis, a cable reel carrying mechanism, a tension adjustment component, a cable guiding mechanism, an auxiliary support mechanism, a controller, and a power system. The cable reel carrying mechanism, cable guiding mechanism, and tension adjustment component are arranged sequentially along the forward direction of the adaptive terrain walking chassis. The auxiliary support mechanism is located at the bottom or side of the adaptive terrain walking chassis. The controller is connected to the adaptive terrain walking chassis, cable reel carrying mechanism, tension adjustment component, cable guiding mechanism, auxiliary support mechanism, and power system. The power system provides power to the components.

[0006] Furthermore, the adaptive terrain walking chassis adopts a tracked walking structure, and is equipped with terrain adaptive leveling components.

[0007] Furthermore, the cable reel carrying mechanism includes a carrying frame, a lifting adjustment component, and a rotating seat; the rotating seat is rotatably mounted on the top of the carrying frame; the lifting adjustment component is located between the carrying frame and the adaptive terrain walking chassis, and is used to drive the carrying frame to move up and down in the vertical direction; the rotating seat is equipped with a cable reel fixing component and a reel braking component, and the reel braking component is used to control the rotation or stop of the cable reel.

[0008] Furthermore, the cable guiding mechanism includes a guide frame, a guide wheel, and an angle adjusting component; the guide wheel is rotatably mounted on the guide frame; the angle adjusting component is located between the guide frame and the adaptive terrain walking chassis, and is used to drive the guide frame to rotate around a horizontal or vertical axis; the guide wheel has an anti-detachment protrusion or anti-detachment ring in its groove.

[0009] Furthermore, the guide frame is also equipped with a buffer component, which is connected to the guide wheel to buffer the impact force of the cable on the guide wheel.

[0010] Furthermore, the tension adjustment assembly includes a tension detection element and a tension adjustment actuator; both the tension detection element and the tension adjustment actuator are disposed on the cable path and in contact with the cable; the tension detection element is signal-connected to the controller and is used to detect the tension value of the cable; the tension adjustment actuator is signal-connected to the controller and adjusts the cable tension according to the detection result of the tension detection element.

[0011] Furthermore, the tension adjustment actuator is a swingable tension adjustment wheel or a telescopic tension adjustment frame, and the tension adjustment wheel is connected to the adaptive terrain walking chassis through an elastic element.

[0012] Furthermore, the auxiliary support mechanism includes at least two retractable outriggers, each of which is evenly distributed around the circumference of the adaptive terrain chassis, and the bottom of the retractable outriggers is provided with anti-slip grounding components.

[0013] The cable laying device for lightning protection retrofitting of mountain wind farms provided by this utility model has the following beneficial effects: 1. The tracked adaptive terrain chassis, combined with terrain-adaptive leveling components and circumferentially distributed telescopic outriggers, enables stable movement in steep mountains and hard rock areas. The leveling components and telescopic outriggers also allow for rapid leveling and stable support of the equipment. Simultaneously, the cable reel carrying mechanism can flexibly adjust the height and angle of the cable reel via lifting adjustment components and a rotating seat. The cable guiding mechanism can rotate around a horizontal or vertical axis to adapt to different laying directions, reducing the intensity of manual adjustments and making cable laying operations more suitable for complex mountainous terrain, thus improving construction efficiency.

[0014] 2. The tension adjustment component detects and automatically adjusts the cable tension in real time, effectively preventing cable breakage due to excessive tension or tangling due to insufficient tension, ensuring stable tension during cable laying; the anti-detachment protrusions / anti-detachment rings on the guide wheel prevent cable detachment, and the buffer absorbs the impact of the cable on the guide wheel, reducing the risk of cable wear and damage; the reel brake precisely controls the start and stop of the cable reel, further ensuring the smoothness of the laying process and improving the construction quality of lightning protection cable laying. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments will be briefly described below.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; The attached diagram is labeled as follows: 1. Adaptive terrain walking chassis; 11. Terrain adaptive leveling component; 2. Cable reel carrying mechanism; 21. Bearing frame; 22. Lifting adjustment component; 23. Rotating seat; 231. Cable reel fixing component; 232. Reel braking component; 3. Tension adjustment assembly; 31. Tension detection component; 32. Tension adjustment actuator; 321. Tension adjustment wheel; 3211. Elastic component; 4. Cable guiding mechanism; 41. Guide frame; 411. Buffer component; 42. Guide wheel; 43. Angle adjustment component; 5. Auxiliary support mechanism; 51. Telescopic outrigger; 511. Anti-slip grounding component; 6. Controller; 7. Power system. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] Reference Figure 1 As shown in the figure, the mountain wind farm lightning protection retrofit cable laying device of this utility model includes an adaptive terrain walking chassis 1, a cable reel carrying mechanism 2, a tension adjustment component 3, a cable guiding mechanism 4, an auxiliary support mechanism 5, a controller 6, and a power system 7. The cable reel carrying mechanism 2, the cable guiding mechanism 4, and the tension adjustment component 3 are sequentially arranged along the forward direction of the adaptive terrain walking chassis 1, forming a complete operation chain from cable release, tension adjustment to guided laying. The auxiliary support mechanism 5 is located at the bottom or side of the adaptive terrain walking chassis 1, providing stable support for the device's operation. The controller 6 is connected to the adaptive terrain walking chassis 1, the cable reel carrying mechanism 2, the tension adjustment component 3, the cable guiding mechanism 4, the auxiliary support mechanism 5, and the power system 7, respectively, and is responsible for receiving detection signals from each component and issuing precise control commands. The power system 7 provides continuous power for the operation of all the above components. It can be flexibly selected according to the power supply conditions of the mountain operation environment, such as using a diesel engine, a lithium battery-driven electric motor, or a diesel-electric hybrid system, ensuring that the device can stably output power in various mountain scenarios.

[0019] Specifically, the adaptive terrain-traffic chassis 1 adopts a tracked walking structure. The tracked structure increases the contact area with the ground, reducing pressure per unit area and preventing the device from sinking on soft or rugged mountain surfaces. Simultaneously, the track surface can be equipped with anti-slip patterns or protrusions to further enhance traction and reduce terrain limitations during equipment transportation and operation. The adaptive terrain-traffic chassis 1 is also equipped with a terrain-adaptive leveling component 11. This component can be selected from various forms such as hydraulic leveling cylinders, electric leveling rods, screw leveling mechanisms, or pneumatic leveling components. It uses an angle sensor to detect adaptive behavior in real time. The tilt angle of the terrain-walking chassis 1 is detected and the detection signal is transmitted to the controller 6. The controller 6 drives the terrain adaptive leveling component 11 to extend or swing according to the preset level threshold. For example, when the chassis tilts to the left due to terrain undulations, the hydraulic leveling cylinder on the left retracts or the hydraulic leveling cylinder on the right extends until the chassis returns to a horizontal state. This ensures that the cable reel carrying mechanism 2, tension adjustment component 3 and other components on the chassis are always in a horizontal working state, avoiding cable reel offset, tension adjustment imbalance or guide mechanism misalignment caused by chassis tilt, and ensuring the accuracy and stability of cable laying.

[0020] The cable reel carrying mechanism 2 includes a support frame 21, a lifting adjustment component 22, and a rotating seat 23. The rotating seat 23 is rotatably mounted on top of the support frame 21 via a bearing or slewing bearing structure, allowing the cable reel to rotate freely with the rotating seat 23. Utilizing the low-friction characteristics of the bearing or slewing bearing structure, the resistance during cable reel rotation can be reduced. When the cable needs to be laid in different directions, the rotating seat 23 can rotate synchronously, avoiding problems such as entanglement and twisting of the cable during release. The lifting adjustment component 22 is located between the support frame 21 and the adaptive terrain walking chassis 1. It can be a hydraulic lift, an electric screw lift, a rack and pinion lifting mechanism, or a pneumatic lifting cylinder, etc. The extension and retraction of the lifting adjustment component 22 is controlled by the controller 6, thereby driving the support frame 21 to rise and fall vertically. This allows for flexible adjustment of the cable reel's installation and release height according to the cable reel's diameter, laying height requirements, and terrain elevation changes. The rotating base 23 is equipped with a cable reel fixing component 231 and a reel brake component 232. The cable reel fixing component 231 is used to securely fix the cable reel to the rotating base 23. It can be selected from various forms such as a chuck-type fixing structure, a bolt fastening frame, an elastic clamping sleeve, or a pin positioning assembly, which can prevent the reel from axial displacement or circumferential rotation during cable laying. The reel brake component 232 is used to control the rotation or stop of the cable reel. It can be selected from electromagnetic brakes, hydraulic brakes, mechanical friction brakes, or disc brakes. The controller 6 can control the start and stop of the reel brake component 232 according to the laying progress or tension detection results. For example, when the cable laying speed is too fast or the tension is too high, the controller 6 activates the reel brake component 232 to slow down the rotation speed of the cable reel through friction until it stops, thereby controlling the release speed of the cable and avoiding sudden tension changes caused by excessively fast cable release, which could damage the cable insulation layer or internal conductor.

[0021] The tension adjustment assembly 3 includes a tension detection element 31 and a tension adjustment actuator 32. Both the tension detection element 31 and the tension adjustment actuator 32 are located on the cable path and in contact with the cable to ensure real-time detection and adjustment of cable tension. The tension detection element 31 is signal-connected to the controller 6 and can be selected from tensile tension sensors, pressure tension sensors, strain gauge tension sensors, or optical tension sensors, etc., to accurately and in real-time feedback changes in cable tension, providing a basis for tension adjustment and avoiding cable damage due to untimely tension detection. The tension adjustment actuator 32 is signal-connected to the controller 6 and can automatically adjust the cable tension based on the detection results of the tension detection element 31. It can be a swingable tension adjustment wheel 321 or a telescopic tension adjustment frame. When a swingable tension adjustment wheel 321 is used, the tension adjustment wheel 321 is connected to the adaptive terrain walking chassis 1 through an elastic element 3211. The elastic element 3211 can be a helical spring, leaf spring, elastic rubber sleeve, or gas spring, etc. When the tension detection element 31 detects that the cable tension is too high, the controller 6 can control the tension adjusting wheel 321 to swing away from the cable path around the hinge point, and the elastic element 3211 is stretched or compressed, thereby increasing the cable's force-bearing length and reducing the cable tension. When the detected tension is too low, the restoring force of the elastic element 3211 drives the tension adjusting wheel 321 to swing closer to the cable path, shortening the cable's force-bearing length, increasing the cable tension, and achieving dynamic tension balance. When a telescopic tension adjusting frame is used, it can be a hydraulic telescopic frame, an electric screw telescopic frame, a gear and rack telescopic frame, or a pneumatic telescopic frame, etc. The controller 6 can control the extension and retraction of the tension adjusting frame according to the tension detection results, change the position of the guide wheel on the adjusting frame, and thus adjust the cable's winding angle or force path to achieve the purpose of tension adjustment.

[0022] The cable guiding mechanism 4 includes a guide frame 41, a guide wheel 42, and an angle adjusting component 43. The guide wheel 42 is rotatably mounted on the guide frame 41 via a shaft and bearings. The groove shape of the guide wheel 42 is adapted to the outer diameter of the cable, which can limit and guide the cable. Its rotational characteristics can reduce the friction between the cable and the guide wheel 42 during cable laying, reduce wear on the cable surface, and protect the cable insulation layer from damage. The angle adjusting component 43 is located between the guide frame 41 and the adaptive terrain walking chassis 1, and is used to drive the guide frame 41 to rotate around a horizontal or vertical axis. It can be selected from hydraulic drive cylinders, electric push rods, gear transmission mechanisms, worm gear transmission mechanisms, or linkage drive mechanisms, etc. When rotating around the horizontal axis, it can adapt to the slope changes of the mountain. For example, when the laying path is uphill, the angle adjusting component 43 drives the guide frame 41 to swing upward, so that the groove of the guide wheel 42 is aligned with the uphill path. To maintain consistency and avoid hard friction between the cable and the edge of the wheel groove; when rotating around the vertical axis, it can adapt to the path changes of left and right turns in mountainous terrain. For example, when the laying path turns to the right, the angle adjustment component 43 drives the guide frame 41 to rotate to the right, ensuring that the cable is always laid along the preset path, improving laying efficiency and path accuracy; in addition, the wheel groove of the guide wheel 42 is equipped with anti-detachment protrusions or anti-detachment rings. The anti-detachment protrusions can be strip-shaped protrusions or ring-shaped protrusions evenly distributed along the circumference of the wheel groove, or multiple point-shaped protrusions set along the axial direction of the wheel groove. The anti-detachment rings can be ring retaining rings fixedly installed at both ends of the wheel groove or detachable elastic retaining rings. By limiting the axial displacement of the cable in the wheel groove through the anti-detachment protrusions or anti-detachment rings, it is possible to prevent the cable from falling out of the wheel groove due to vibration, tension fluctuations or terrain bumps during the laying process, further ensuring the continuity and stability of cable laying, and reducing work interruptions and rework caused by cable detachment.

[0023] To mitigate potential impacts during cable laying and prevent damage to the guide wheel 42 and guide frame 41, while also minimizing the impact on the cable itself, a buffer 411 is installed on the guide frame 41. This buffer 411 is connected to the guide wheel 42 and can be made of various forms, such as a spring buffer, hydraulic buffer, elastic rubber block, polyurethane buffer pad, or gas-liquid hybrid buffer. When the cable impacts the guide wheel 42 due to sudden changes in terrain, instantaneous tension fluctuations, or reel braking, the buffer 411 absorbs the impact through its elastic deformation, hydraulic damping, or gas compression. This converts the instantaneous impact into deformation energy or heat energy, which is then slowly released. This significantly reduces damage to the guide wheel 42 shaft, bearings, and guide frame 41 structure, extending the service life of the components. Simultaneously, the buffer 411's cushioning effect prevents the impact from being directly transmitted to the cable, reducing insulation cracking or conductor damage caused by instantaneous impacts and ensuring the quality of cable laying and subsequent safety.

[0024] The auxiliary support mechanism 5 includes at least two retractable outriggers 51. The retraction of the retractable outriggers 51 can be hydraulic, electric screw, or pneumatic. The number of outriggers can be flexibly selected according to the size and weight of the adaptive terrain chassis 1. They are evenly distributed along the circumference of the adaptive terrain chassis 1 to form a stable support structure. Each retractable outrigger 51 has an anti-slip grounding component 511 at its bottom. The anti-slip grounding component 511 can be a rubber anti-slip pad, a polyurethane anti-slip pad, a metal grounding plate with anti-slip texture, an anti-slip toothed plate, or a multi-claw grounding claw, etc., to enhance grounding stability and prevent the outriggers from slipping. When the device reaches the working position or travels to a steep section of road, the controller 6 controls the retractable outriggers 51 to extend until the anti-slip grounding component 511 is in close contact with the ground and generates sufficient support force. Through the even distribution of multiple outriggers, the support area between the device and the ground is increased, and the center of gravity height is lowered, thereby effectively resisting the overturning moment caused by terrain tilt, cable tension reaction force, etc., and preventing the device from sliding or tipping over.

[0025] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A cable laying device for lightning protection retrofitting in mountain wind farms, characterized in that, The system includes an adaptive terrain walking chassis (1), a cable reel carrying mechanism (2), a tension adjusting component (3), a cable guiding mechanism (4), an auxiliary support mechanism (5), a controller (6), and a power system (7). The cable reel carrying mechanism (2), the tension adjusting component (3), and the cable guiding mechanism (4) are arranged sequentially along the forward direction of the adaptive terrain walking chassis (1). The auxiliary support mechanism (5) is located at the bottom or side of the adaptive terrain walking chassis (1). The controller (6) is connected to the adaptive terrain walking chassis (1), the cable reel carrying mechanism (2), the tension adjusting component (3), the cable guiding mechanism (4), the auxiliary support mechanism (5), and the power system (7). The power system (7) provides power to the components.

2. The cable laying device for lightning protection retrofitting of mountain wind farms as described in claim 1, characterized in that, The adaptive terrain walking chassis (1) adopts a tracked walking structure, and the adaptive terrain walking chassis (1) is equipped with a terrain adaptive leveling component (11).

3. The cable laying device for lightning protection retrofitting of mountain wind farms as described in claim 1, characterized in that, The cable reel carrying mechanism (2) includes a carrying frame (21), a lifting adjustment component (22), and a rotating seat (23); the rotating seat (23) is rotatably mounted on the top of the carrying frame (21); the lifting adjustment component (22) is located between the carrying frame (21) and the adaptive terrain walking chassis (1) and is used to drive the carrying frame (21) to rise and fall in the vertical direction; the rotating seat (23) is provided with a cable reel fixing component (231) and a reel braking component (232), and the reel braking component (232) is used to control the rotation or stop of the cable reel.

4. The cable laying device for lightning protection retrofitting of mountain wind farms as described in claim 1, characterized in that, The cable guiding mechanism (4) includes a guide frame (41), a guide wheel (42), and an angle adjusting component (43); the guide wheel (42) is rotatably mounted on the guide frame (41); the angle adjusting component (43) is located between the guide frame (41) and the adaptive terrain walking chassis (1) and is used to drive the guide frame (41) to rotate around a horizontal axis or a vertical axis; the guide wheel (42) has anti-detachment protrusions or anti-detachment rings in its groove.

5. The cable laying device for lightning protection retrofitting of mountain wind farms as described in claim 4, characterized in that, The guide frame (41) is also provided with a buffer (411), which is connected to the guide wheel (42) and is used to buffer the impact force of the cable on the guide wheel (42).

6. The cable laying device for lightning protection retrofitting of mountain wind farms as described in claim 1, characterized in that, The tension adjustment assembly (3) includes a tension detection element (31) and a tension adjustment actuator (32); both the tension detection element (31) and the tension adjustment actuator (32) are disposed on the cable path and in contact with the cable; The tension detection element (31) is signal-connected to the controller (6) and is used to detect the tension value of the cable; The tension adjustment actuator (32) is signal-connected to the controller (6) and adjusts the cable tension according to the detection result of the tension detection device (31).

7. The cable laying device for lightning protection retrofitting of mountain wind farms as described in claim 6, characterized in that, The tension adjustment actuator (32) is a swingable tension adjustment wheel (321) or a telescopic tension adjustment frame. The tension adjustment wheel (321) is connected to the adaptive terrain walking chassis (1) through an elastic element (3211).

8. The cable laying device for lightning protection retrofitting of mountain wind farms as described in claim 1, characterized in that, The auxiliary support mechanism (5) includes at least two retractable legs (51), each of which is evenly distributed around the circumference of the adaptive terrain chassis (1), and the bottom of each retractable leg (51) is provided with an anti-slip grounding component (511).

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