Iso-potential walking mechanism

Abstract

The utility model discloses a kind of equal-potential walking mechanisms, including fixed frame and walking wheel, the fixed frame is used to be fixedly connected with detection robot, the walking wheel is used to make detection robot walk on overhead line under motor drive, one walking wheel is respectively installed in the both sides of the fixed frame, tire is provided on the walking wheel, several grooves are evenly provided on the tire, metal wire is inlaid in the groove, the both ends of the metal wire are connected with the both sides of walking wheel respectively.Walking mechanism walks on overhead line, metal wire can be alternatively contacted with overhead line, to adjust the potential of walking wheel and other metal structures connected with walking wheel, make it consistent with overhead line, prevent arc discharge, improve patrol safety and stability.

Description

Technical Field

[0001] This utility model relates to the technical field of overhead line testing equipment, specifically to an equipotential walking mechanism. Background Technology

[0002] With the continuous development of power systems, the inspection and maintenance of overhead lines have become increasingly important. To ensure the safe and stable operation of power systems, overhead line inspections need to be conducted regularly. Traditional overhead line inspections mainly rely on manual inspections or observations using ground-based auxiliary equipment. Manual inspections are inefficient, requiring significant manpower, time, and resources. Inspectors must walk along the overhead lines, and due to terrain and environmental limitations, rapid and comprehensive inspections are difficult, especially in remote mountainous areas or in inclement weather, resulting in high workload and significantly reduced efficiency. Simultaneously, manual inspections are highly dangerous; inspectors face the risk of electric shock when approaching or touching high-voltage energized overhead lines, and there is a risk of falls due to equipment failure or operational errors while working at heights. Furthermore, manual inspections and ground observations are conducted at considerable distances from the lines, limiting visibility and making it difficult to accurately identify minor damage, internal defects, and hidden faults. Insufficient inspection accuracy easily leads to missed detections and misjudgments, posing hidden dangers to the safe operation of the power system. Therefore, overhead line inspection robots have emerged.

[0003] However, existing overhead line inspection robots still have shortcomings. The equipotential structure used in existing inspection robots is often designed separately from the walking wheel structure, which cannot effectively guarantee that the robot maintains an equipotential state continuously during its movement. Utility Model Content

[0004] To overcome the shortcomings of the above-mentioned related technologies, an equipotential walking mechanism is provided. When the walking mechanism travels on an overhead line, the metal wires can alternately contact the overhead line to adjust the potential of the walking wheel and other metal structures connected to the walking wheel, so that they are consistent with the overhead line, preventing arc discharge and improving the safety and stability of inspection.

[0005] This invention provides an equipotential walking mechanism, including a fixed frame and walking wheels. The fixed frame is used to fix and connect to a detection robot. The walking wheels are used to enable the detection robot to walk on an overhead power line under the drive of a motor. A walking wheel is mounted on each side of the fixed frame, and a tire is mounted on each walking wheel. Several grooves are evenly distributed on the tires, and metal wires are embedded in the grooves. The two ends of the metal wires are connected to the two sides of the walking wheel. When the robot walks on the overhead power line, the tires contact the overhead power line. Because the metal wires are embedded in the tire surface, the metal wires and the overhead power line contact each other, forming a potential connection channel. In this way, the potential between the overhead power line and the tires is balanced, achieving the equipotential function for the walking wheels and ensuring the robot's operational safety in high-voltage environments.

[0006] Preferably, the traveling wheel is equipped with an internal ring gear, the motor is mounted on a fixed frame, the motor is connected to a transmission gear, and the transmission gear meshes with the internal ring gear. The transmission gear is an external gear. This allows the traveling wheel to rotate under the drive of the motor, thus driving the traveling wheel to travel on the overhead line.

[0007] Preferably, the radii on both sides of the traveling wheel are larger than the radius in the middle, and the radii on both sides of the tire are larger than the radius in the middle. The larger radii on both sides of the traveling wheel and the tire form a concave structure that allows the traveling wheel to fit more closely with the overhead line, and the larger wheel diameter on both sides also serves a positioning function to prevent the traveling wheel from slipping off the overhead line.

[0008] Preferably, the tire is a polyurethane tire. The combination of the elasticity of the polyurethane tire and the rigidity of the metal wire allows it to better adapt to the surface shape and unevenness of the overhead line, ensuring good contact between the tire and the overhead line, while also guaranteeing the realization of the equipotential function.

[0009] Preferably, the metal wire is made of copper alloy or aluminum alloy. Copper alloy or aluminum alloy has good electrical conductivity and is wear-resistant.

[0010] Preferably, a metal brush is provided in front of the traveling wheel in the direction of travel. The metal brush includes metal bristles, a clamp, and a connecting frame. Multiple metal bristles are fixedly mounted on the clamp, which is connected to the connecting frame, which is connected to a fixed frame. When the walking mechanism travels on an overhead line, the metal bristles come into contact with the overhead line. The metal bristles maintain constant contact with the overhead line, further ensuring that the robot is in an equipotential state, further reducing the risk of arc discharge due to potential differences, and ensuring the safe operation of the robot in a high-voltage environment.

[0011] Preferably, the connecting frame is a U-shaped connecting frame, which is fixedly connected to the clamp, and the end of the U-shaped connecting frame is fixedly connected to the fixed frame. The U-shaped connecting frame fixes the metal bristles on the clamp in front of the traveling wheel, ensuring that the metal bristles can effectively contact the overhead line.

[0012] Preferably, the fixed frame includes a crossbar and contact feet, with the wheels mounted at both ends of the crossbar. The contact feet provide stable support when the robot lands on the ground.

[0013] Compared with related technologies, this invention has the following advantages: When the robot walks on an overhead power line, the tires contact the line. Because the tire surface is inlaid with metal wires, these wires contact the overhead power line, forming a potential connection channel. In this way, the potential between the overhead power line and the tires is balanced, achieving equipotentiality for the wheels and ensuring the robot's operational safety in high-voltage environments. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of Example 1; Figure 2 This is a schematic diagram of the walking wheel in Example 1.

[0015] In the diagram: fixed frame 1, crossbar 11, contact foot 12, traveling wheel 2, motor 21, ring internal gear 22, transmission gear 23, tire 3, metal wire 31, metal bristles 41, clamp 42, connecting frame 43. Detailed Implementation

[0016] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Example 1 like Figures 1-2 As shown, an equipotential walking mechanism includes a fixed frame 1 and walking wheels 2, with one walking wheel 2 mounted on each side of the fixed frame 1. The fixed frame 1 is fixedly connected to an inspection robot. The walking wheels 2 can drive the inspection robot to move on the overhead line under the drive of a motor 21. Tires 3 are mounted on the walking wheels 2. The tires 3 are made of polyurethane and have a number of evenly distributed grooves (the number of grooves can be 8-32, depending on actual needs). The combination of the elasticity of the polyurethane tire and the rigidity of the metal wire allows for better adaptation to the surface shape and unevenness of the overhead line, ensuring good contact between the tire and the overhead line, while also guaranteeing the realization of the equipotential function. Metal wires 31 are embedded in the grooves, with both ends of the metal wires 31 connected to the two sides of the walking wheels 2. The metal wires 31 can be made of copper alloy or aluminum alloy. Copper alloy or aluminum alloy has good electrical conductivity and is wear-resistant. The radii of the two sides of the walking wheels 2 are larger than the radius of the middle, and the radii of the two sides of the tires 3 are also larger than the radius of the middle. The radii on both sides of the walking wheel 2 and tire 3 are larger than the radius in the middle, forming a concave structure that allows the walking wheel 2 and tire 3 to fit more closely with the overhead line. The larger wheel diameters on both sides also serve a positioning function, preventing the walking wheel from slipping off the overhead line. When the robot walks on the overhead line, tire 3 comes into contact with the overhead line. Because metal wires 31 are embedded on the surface of tire 3, these metal wires 31 contact the overhead line, forming a potential connection channel. In this way, the potential between the overhead line and the tire is balanced, achieving equipotentiality for the walking wheel and ensuring the robot's operational safety in high-voltage environments.

[0019] Specifically, the traveling wheel 2 is equipped with an internal ring gear 22, and the motor 21 is mounted on the fixed frame 1. The motor 21 is connected to the transmission gear 23, which meshes with the internal ring gear 22. The transmission gear 23 is an external gear. The motor 21 drives the transmission gear 23 to rotate, which in turn drives the internal ring gear 22 to rotate, which in turn drives the traveling wheel 2 to rotate, thus driving the traveling wheel 2 to travel on the overhead line.

[0020] In another embodiment, a metal brush 4 is positioned in front of the traveling wheel 2 in the direction of travel. The metal brush includes metal bristles 41, a clamp 42, and a connecting frame 43. Multiple metal bristles 41 are fixedly mounted on the clamp 42, which is fixedly connected to the connecting frame 43, which is also fixedly connected to the fixed frame 1. When the traveling mechanism travels on the overhead line, the metal bristles 41 come into contact with the overhead line. The connecting frame 43 can be a U-shaped connecting frame, which is fixedly connected to the clamp 42, and its end is fixedly connected to the fixed frame 1. The U-shaped connecting frame fixes the metal wire on the clamp 42 in front of the traveling wheel 2, ensuring that the metal bristles 41 can effectively contact the overhead line. The metal bristles 41 maintain constant contact with the overhead line, further ensuring that the robot is in an equipotential state, further reducing the risk of arc discharge due to potential difference, and ensuring the safe operation of the robot in a high-voltage environment.

[0021] In another embodiment, the fixed frame 1 includes a crossbar 11 and contact feet 12, with wheels 2 mounted at both ends of the crossbar 11. The contact feet 12 provide stable support when the robot lands on the ground.

[0022] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An equipotential walking mechanism characterized by, The device includes a fixed frame and wheels. The fixed frame is used to fix the inspection robot to the device. The wheels are used to make the inspection robot move on the overhead line under the drive of the motor. A wheel is installed on each side of the fixed frame. The wheels are equipped with tires. The tires are evenly provided with a number of grooves. Metal wires are embedded in the grooves. The two ends of the metal wires are connected to the two sides of the wheels respectively.

2. The equipotential walking mechanism according to claim 1, wherein The walking wheel is equipped with an internal ring gear, the motor is mounted on a fixed frame, the motor is connected to the transmission gear, the transmission gear meshes with the internal ring gear, and the transmission gear is an external gear.

3. The equipotential travel mechanism according to claim 1, wherein The radii on both sides of the walking wheel are larger than the radii in the middle, and the radii on both sides of the tire are larger than the radii in the middle.

4. The equipotential travel mechanism of claim 1, wherein, The tire is a polyurethane tire.

5. The equipotential travel mechanism of claim 1, wherein, The metal wire is made of copper alloy or aluminum alloy.

6. The equipotential walking mechanism according to claim 1, characterized in that, A metal brush is provided in front of the traveling wheel in the direction of travel. The metal brush includes metal bristles, a clamp, and a connecting frame. Multiple metal bristles are fixedly installed on the clamp. The clamp is connected to the connecting frame, and the connecting frame is connected to the fixed frame. When the traveling wheel travels on the overhead line, the metal bristles come into contact with the overhead line.

7. An equipotential walking mechanism according to claim 6, wherein The connecting frame is a U-shaped connecting frame, which is fixedly connected to the clamp, and the end of the U-shaped connecting frame is fixedly connected to the fixed frame.

8. An equipotential walking mechanism according to claim 1, wherein The fixed frame includes a crossbar and contact feet, with the contact feet mounted at both ends of the crossbar.

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