Self-balancing cable inspection device convenient to load and unload

Abstract

The utility model relates to cable inspection technical field, especially a kind of self-balancing cable inspection device convenient to load and unload is provided.The device is constituted by interlayer inner shell, interlayer outer shell, integrated outer frame etc.Two integrated outer frames are hinged at one end, and the other end is detachably connected, and are enclosed into annular shape;Corresponding interlayer inner shell, shell are respectively installed on integrated outer frame and interlayer inner shell, and sealed cavity is formed between outer shell and inner shell, and fluid is stored in inner shell.Integrated outer frame inside is equipped with detection device and support, and brushless motor on support is provided with driving wheel.In use, open integrated outer frame and place high-voltage cable between integrated outer frame, after buckling, annular shape is sleeved on cable, and quick loading and unloading are realized.In working, driving wheel is in contact with cable, and the device is moved by brushless motor driving;Fluid in sealed cavity is damped according to liquid damping principle, improves motion stability, and guarantees inspection effect.

Description

Technical Field

[0001] This utility model relates to the field of cable inspection technology, and in particular to a self-balancing cable inspection device that is easy to load and unload. Background Technology

[0002] This utility model relates to a mechanical device for high-voltage cable inspection, which autonomously travels along high-voltage transmission lines to detect structural defects such as cable wear and broken strands. With the advancement of my country's "nationwide power grid interconnection, north-south power supply, and west-to-east power transmission" projects, the scale of the power transmission network is constantly expanding, and high-voltage transmission lines are widely distributed in complex environments such as mountains and hills. These lines are subjected to long-term mechanical tension and environmental temperature changes, making cables prone to structural defects such as wear and broken strands. Furthermore, the continuous increase in transmission line mileage has led to a surge in maintenance workload, making it difficult to meet the intelligent operation and maintenance needs of high-voltage transmission lines.

[0003] Currently, most high-voltage cable inspection robots researched both domestically and internationally adopt a rigid wheel-arm design. Their core functionality involves using multiple sets of rigid wheels and arm structures to move along the cable and overcome obstacles. Their main purpose is to carry various testing equipment and perform line inspections while the high-voltage cable is energized, thus replacing manual tower climbing inspections, reducing operational risks, and improving inspection efficiency and coverage. However, this type of robot suffers from drawbacks such as complex mechanisms, large size and weight, poor stability, and difficulty in loading and unloading, which limits its practical application. Utility Model Content

[0004] To address the technical problems of large size, poor stability, and difficult disassembly of existing high-voltage cable inspection robots, this invention provides a self-balancing cable inspection device that is easy to load and unload. Therefore, the present invention provides the following technical solution: A self-balancing cable inspection device that is easy to install and remove includes a sandwich inner shell, a sandwich outer shell, and an integrated outer frame. One end of the two integrated outer frames is hinged, and the other ends of the two frames are detachably connected, forming a ring. The two sandwich inner shells are respectively installed on the corresponding integrated outer frames, and the two sandwich outer shells are respectively installed on the corresponding sandwich inner shells. A sealed cavity is formed between the corresponding sandwich outer shells and the sandwich inner shells, and fluid is stored in the sealed cavity. A detection device and a support are installed inside the integrated outer frame. A brushless motor is installed on the support, and a drive wheel is installed on the brushless motor.

[0005] Furthermore, the detection device includes a detection coil housing and a detection coil, with the detection coil installed inside the detection coil housing, which is installed inside the integrated frame.

[0006] Furthermore, it also includes a spring and a damper. One end of the damper is rotatably mounted on the inner side of the integrated outer frame via a hinge support, and the other end of the damper is rotatably mounted on the bracket via a rotating shaft. The spring is fitted onto the damper, and the two ends of the spring are respectively connected to the two ends of the damper.

[0007] Furthermore, two dampers are provided on both sides of the bracket, and the two dampers on the same side of the bracket and the integrated outer frame form a triangle.

[0008] Furthermore, a driven wheel is rotatably mounted on the bracket via a driven wheel shaft, and the surface of the driven wheel is provided with a groove that can engage the cable.

[0009] Furthermore, the detachable method specifically includes: one end of one integrated frame is provided with a slot, a guide block is installed in the slot, an insertion hole is provided in the guide block, and there is a gap between the inner walls of both sides of the slot and the guide block; the two side walls of the integrated frame are provided with limiting holes corresponding to the slot positions; the end of the other integrated frame is provided with a plug rod, the plug rod is adapted to the insertion hole, and elastic limiting rods are provided on both sides of the plug rod at the end of the integrated frame; limiting blocks are provided on the outer sides of the two limiting rods, and the limiting blocks are adapted to the limiting holes.

[0010] Furthermore, the fluid stored in the sealed cavity is water or silicone oil.

[0011] Furthermore, the fluid volume accounts for 30%-40% of the sealed cavity volume.

[0012] Furthermore, the surface of the drive wheel is provided with a silicone surface.

[0013] Furthermore, both the outer and inner sandwich shells are made of brass.

[0014] Advantages and positive effects of this utility model: During installation, this invention only requires opening the two integrated outer frames, placing the high-voltage cable between them, and then fastening the two frames together to form a ring around the high-voltage cable, enabling quick installation and removal. After installation, the drive wheel contacts the surface of the high-voltage cable, and the brushless motor drives the drive wheel to rotate, thus moving the device. During movement, the liquid in the sealed cavity formed between the inner and outer shells achieves a shock absorption effect based on the principle of liquid damping, improving the stability of the device's movement and enhancing the inspection effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 The front view of a self-balancing cable inspection device that is easy to load and unload according to this utility model.

[0017] Figure 2 The inner side view of one of the integrated frames of a self-balancing cable inspection device that is easy to load and unload according to this utility model.

[0018] Figure 3 This utility model provides a structural diagram of an integrated frame with a detachable design for a self-balancing cable inspection device that is easy to load and unload.

[0019] Figure 4 This utility model provides a structural diagram of another integrated frame detachable method for a self-balancing cable inspection device that is easy to load and unload.

[0020] Figure 5 A side view of the bracket of a self-balancing cable inspection device that is easy to load and unload, provided by this utility model.

[0021] In the diagram: 1. Hinge; 2. Detection coil housing; 3. Detection coil; 4. Bracket; 5. Inner shell; 6. Outer shell; 7. Groove; 8. Slot; 9. Drive wheel; 10. Brushless motor; 11. Integrated frame; 12. Spring damper; 13. Hinge support; 14. Driven wheel; 15. Driven wheel axle; 16. Shaft; 17. Guide block; 18. Limiting hole; 19. Insert rod; 20. Limiting rod; 21. Limiting block; 22. Silicone surface; 23. Insertion hole; 24. Damper. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] This utility model provides a self-balancing cable inspection device that is easy to install and remove, such as Figures 1-2As shown, it includes a sandwich inner shell 5, a sandwich outer shell 6, and an integrated outer frame 11. One end of the two integrated outer frames 11 is hinged by a hinge 1, and the other ends of the two frames are detachably connected, as shown in the figure. Figures 3-4 As shown, specifically, one of the integrated frames 11 has a slot 8 at its end, a guide block 17 is installed in the slot 8, and an insertion hole 23 is provided in the guide block 17. There is a gap between the inner walls of both sides of the slot 8 and the guide block 17. The side walls of the integrated frame 11 are provided with limiting holes 18 corresponding to the positions of the slot 8. The other integrated frame 11 has a plug rod 19 at its end, which is adapted to the insertion hole 23. The end of the integrated frame 11 is provided with elastic limiting rods 20 on both sides of the plug rod 19. The outer sides of the two limiting rods 20 are provided with limiting blocks 21, which are adapted to the limiting holes 18. When installing the device of this application, bend the two limiting rods 20 toward the insertion rod 19 and insert them into the slot 8. Release the limiting rods 20 and continue to insert them into the slot 8. The insertion rod 19 is inserted into the insertion hole 23 to provide guidance. After the end of the limiting rod 20 reaches the limiting hole 18, the limiting rod 20 returns to its original position due to its own elasticity, and the limiting block 21 is engaged in the limiting hole 18, realizing a detachable connection between the two integrated frames 11. At this time, the two integrated frames 11 form a ring, and the high-voltage cable is placed inside it to achieve quick installation. When disassembly is required, simply press the limiting blocks 21 inward from both sides at the same time to pull the insertion rod 19 out of the slot 8. Disassembly and installation are simple and quick.

[0024] like Figure 1 As shown, two inner shells 5 are respectively mounted on corresponding integrated outer frames 11, and two outer shells 6 are respectively mounted on corresponding inner shells 5. A sealed cavity is formed between the inner shells 6 and 5, and the sealed cavity stores fluid. The fluid stored in the sealed cavity is silicone oil. The fluid must be liquid, and a suitable liquid density is acceptable. Generally, a denser liquid provides greater inertial force for the same volume, which helps enhance the damping effect of the damper. However, excessive weight can damage the cable due to excessive pressure. Good physical and chemical stability is desirable. The fluid volume occupies 35% of the sealed cavity volume. Too large a proportion will lead to excessive load, while too small a proportion will result in poor control. Different substances have different optimal proportions. The fluid damping principle absorbs the vibrations generated by the device's movement, improving the stability of the device's operation.

[0025] like Figures 1-2 and Figure 5As shown, a detection device and a support 4 are installed inside the integrated frame 11. A brushless motor 10 is installed on the support 4, and a drive wheel 9 is installed on the brushless motor 10. The surface of the drive wheel 9 is provided with a silicone surface 22 to increase the friction between the drive wheel 9 and the high-voltage cable, thereby improving the smoothness of operation. The detection device includes a detection coil housing 2 and a detection coil 3. The detection coil 3 is installed inside the detection coil housing 2, which is installed inside the integrated frame 11. Within the ring structure formed by the two integrated frames 11, there are three sets of supports 4, which are evenly distributed. Each support 4 is equipped with a brushless motor 10 and a drive wheel 9. Detection devices are installed on the integrated frame 11 between adjacent supports 4, allowing for multi-directional inspection of the high-voltage cable. The inspection effect is good. The drive wheel 9 presses against the high-voltage cable from three directions, achieving clamping of the high-voltage cable and improving the stability of the device after installation.

[0026] It also includes a spring 12 and a damper 24. One end of the damper 24 is rotatably mounted on the inner side of the integrated outer frame 11 via a hinge support 13, and the other end of the damper 24 is rotatably mounted on the bracket 4 via a rotating shaft 16. The spring 12 is fitted onto the damper 24, and its two ends are respectively connected to the two ends of the damper 24. Two dampers 24 are provided on both sides of each bracket 4, and the two dampers 24 located on the same side of the same bracket 4 form a triangle with the integrated outer frame 11. The spring 12 and the damper 24 reduce vibration during the movement of the device while improving the stability of the device.

[0027] Each bracket 4 has a driven wheel 14 rotatably mounted on it via a driven wheel shaft 15. The wheel surface of the driven wheel 14 is provided with a groove 7 that can engage the cable. During movement, the groove 7 engages with the high-voltage cable, resulting in high stability.

[0028] Both the outer shell 6 and the inner shell 5 are made of brass. Brass has better ductility, is easier to process, and is corrosion-resistant, which can improve the service life of the device.

[0029] Working Principle: The two integrated outer frames 11 are unfolded and fitted onto the high-voltage cable. The limiting block 21 is then inserted into the limiting hole 18 to complete the installation. At this point, three sets of driving wheels 9 and driven wheels 14 press against the high-voltage cable from three directions. The brushless motor 10 drives the driving wheels 9 to rotate, moving the device. The high-voltage cable is detected by the detection coil 3. During detection, the detection coil 3 generates a magnetic field, which induces eddy currents in the cable. These eddy currents then apply a voltage to the detection coil 3 in the reverse direction. When there is a defect in the cable at the location of the detection coil 3, the voltage applied to the detection coil 3 in the reverse direction will change, thus determining whether a defect exists. The device utilizes the principle of liquid damping and a spring damper to reduce vibration during movement. The device has a simple structure, is easy to install and remove, provides good vibration reduction, and exhibits high stability.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A self-balancing cable inspection device that is easy to load and unload, characterized in that, The system includes a sandwich inner shell (5), a sandwich outer shell (6), and an integrated outer frame (11). One end of the two integrated outer frames (11) is hinged, and the other end of the two are detachably connected. The two integrated outer frames (11) form a ring. The two sandwich inner shells (5) are respectively installed on the corresponding integrated outer frame (11), and the two sandwich outer shells (6) are respectively installed on the corresponding sandwich inner shells (5). A sealed cavity is formed between the corresponding sandwich outer shells (6) and the sandwich inner shells (5), and fluid is stored in the sealed cavity. A detection device and a bracket (4) are installed on the inner side of the integrated outer frame (11). A brushless motor (10) is installed on the bracket (4), and a drive wheel (9) is installed on the brushless motor (10).

2. The self-balancing cable inspection device for easy loading and unloading according to claim 1, characterized in that, The detection device includes a detection coil housing (2) and a detection coil (3). The detection coil (3) is installed inside the detection coil housing (2), and the detection coil housing (2) is installed inside the integrated frame (11).

3. The self-balancing cable inspection device for easy loading and unloading according to claim 1, characterized in that, It also includes a spring (12) and a damper (24). One end of the damper (24) is rotatably mounted on the inner side of the integrated outer frame (11) via a hinge support (13), and the other end of the damper (24) is rotatably mounted on the bracket (4) via a rotating shaft (16). The spring (12) is fitted onto the damper (24), and the two ends of the spring (12) are respectively connected to the two ends of the damper (24).

4. The self-balancing cable inspection device for easy loading and unloading according to claim 3, characterized in that, Two dampers (24) are provided on both sides of the bracket (4). The two dampers (24) located on the same side of the bracket (4) and the integrated outer frame (11) form a triangle.

5. The self-balancing cable inspection device for easy loading and unloading according to claim 1, characterized in that, The bracket (4) is rotatably mounted with a driven wheel (14) via a driven wheel shaft (15). The wheel surface of the driven wheel (14) is provided with a groove (7) that can engage the cable.

6. The self-balancing cable inspection device for easy loading and unloading according to claim 1, characterized in that, The detachable method is as follows: one of the integrated frames (11) has a slot (8) at its end, a guide block (17) is installed in the slot (8), and an insertion hole (23) is provided in the guide block (17). There is a gap between the inner walls of the slot (8) and the guide block (17). The side walls of the integrated frame (11) are provided with limiting holes (18) corresponding to the slot (8). The other integrated frame (11) has a rod (19) at its end, which is adapted to the insertion hole (23). The integrated frame (11) has elastic limiting rods (20) on both sides of the rod (19) at its end. The two limiting rods (20) are provided with limiting blocks (21) on their outer sides, which are adapted to the limiting holes (18).

7. The self-balancing cable inspection device for easy loading and unloading according to claim 1, characterized in that, The fluid stored in the sealed cavity is water or silicone oil.

8. A self-balancing cable inspection device that is easy to load and unload according to claim 1, characterized in that, The fluid volume accounts for 30%-40% of the sealed cavity volume.

9. A self-balancing cable inspection device that is easy to load and unload according to claim 1, characterized in that, The surface of the drive wheel (9) is provided with a silicone surface (22).

10. A self-balancing cable inspection device that is easy to load and unload according to claim 1, characterized in that, Both the outer shell (6) and the inner shell (5) are made of brass.

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