An integrated, lightweight ground wire strand repair device

Abstract

This utility model relates to an integrated, lightweight ground wire strand repair device, belonging to the field of power maintenance technology. The device includes: a wire straightening mechanism, which includes asymmetrical U-shaped grooves that spirally straighten the broken strand of the ground wire during rotation in conjunction with a moving platform; a strand fixing mechanism connected to the wire straightening mechanism, including a clamp box and a push-clamp mechanism that applies a pushing force to the clamp box to open the elastic clip and clamp the ground wire, thereby fixing the broken strand immediately after it is straightened back; and a rotating mechanism, with a fixed part fixed to a connecting base and a rotating part fixed to the strand fixing mechanism, which rotates the entire connection between the wire straightening mechanism and the strand fixing mechanism around the fixed part, changing the opening direction of the wire straightening mechanism. This utility model can solve the problems of the broken ground wire not being able to be straightened back into the broken strand groove, the wire straightening device easily getting stuck, the broken strand end being too long, and the broken strand end being difficult to fix, while also achieving a lightweight design.

Description

Technical Field

[0001] This utility model belongs to the field of power maintenance technology, and in particular relates to an integrated, lightweight ground wire strand repair device. Background Technology

[0002] With the development of the social economy, people's demand for electricity is increasing, making the regular inspection and maintenance of transmission lines more and more arduous. Power companies are facing increasing competition and challenges. As an important component of high-voltage transmission lines, overhead ground wires are one of the most basic and effective lightning protection measures. However, some overhead lines are in harsh environments for a long time, and faults such as broken strands in the outer layer of the ground wire occur frequently. Traditional ground wire strand breakage repair mainly relies on manual labor, which involves a difficult operating environment, high maintenance risks, and low efficiency. Therefore, various robots have been designed and researched both domestically and internationally to realize the inspection and repair of ground wire strand breaks. The most critical part of this is the strand breakage repair device.

[0003] Repairing broken strands in overhead ground wires of high-voltage transmission lines mainly involves the following two functions: 1. Reconnecting the broken strands; 2. Fixing the broken ends. Reconnecting the broken strands involves pulling the disconnected and sagging ground wire strands back onto the ground wire, while fixing the broken ends involves fixing the scattered ends of the reconnected broken strands.

[0004] Since the late 1980s, many countries abroad have successively carried out research and development on high-voltage transmission line robots, achieving significant progress and even launching some products that have been applied to actual power production and daily life. Research on line robots in China started later. In the late 1990s, some universities, research institutions, and power companies in China also began exploratory work on high-voltage line robots and developed different types of robots for experimental research. However, very few line robots have been commercialized; most remain far from productization and are still only at the laboratory research stage.

[0005] In 2016, Song Yifeng et al. developed a line robot for repairing broken strands in OPGW (Optical Power Generation Cable) power grids. This robot is equipped with a passive wire-straightening mechanism, which uses a crimping device to fix the broken strands after straightening. They also proposed a force-constrained inverse kinematics solution method, enabling iterative inverse kinematics solving for the robot under force constraints. Shi Huiwen's team proposed a wire-straightening variable-cell mechanism for repairing broken strands in ultra-high voltage (UHV) transmission lines, providing a new solution for the design of wire-straightening mechanisms in UHV transmission line broken strand repair robots. This robot, through dimensional synthesis of the wire-straightening variable-cell mechanism, determined the overall dimensions of the mechanism, the pressing force and interference of the interference connection, and calculated the spring force at the variable-cell joint. Yan Wenxu's team at Jiangnan University proposed a broken strand straightening device based on an opening and closing mechanism, combined with a pre-twisted wire fixing device, providing a new approach to broken strand repair. Ling Lie et al. designed a broken strand repositioning device for a robot repairing broken strands of overhead ground wires in power transmission lines. This device is used to reposition scattered broken strands of ground wire during robot repair operations. The repositioning device is a passive rotation mechanism; simply provide it with forward motion, and under the pressure of the wire groove on the repositioning head, the device rotates along the spiral characteristics of the ground wire, simultaneously squeezing the broken strands back into the groove, thus completing the repositioning process.

[0006] However, at present, there are still some problems with the wire straightening device for the core module of strand repair: the straightening effect is poor, and it is difficult to straighten the broken strand ground wire back into the broken strand groove while meeting the requirements of lightweight structure; it is very easy to get stuck, and the main problem of getting stuck lies in the design of the wire straightening core structure and the research on wire straightening dynamics.

[0007] At present, there are some problems with the broken strand fixing device: the pre-twisted wire fixing method is limited by the length of the broken strand and the execution method is complicated, making it difficult to achieve lightweighting; the pressing and clamping method for fixing the end has problems such as short fixing life and insufficient clamping force, that is, its fixing effect is unstable.

[0008] Meanwhile, a problem exists regarding the coordination of strand straightening and strand fixing: because the straightening device and the strand fixing device were designed and implemented separately, the strand ends are excessively long after fixing. The main reason for this problem is that after the strand ground wire is straightened back, geometric constraints cannot be immediately obtained, causing the strand to open again at a certain angle before it can be fixed. Furthermore, the separate implementation of the straightening and strand fixing devices results in an excessively heavy overall weight, failing to meet the lightweight requirements for drone hoisting and deployment in high-altitude operations. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides an integrated, lightweight ground wire strand breakage repair device, which solves the problems of ground wire strand breakage not being able to be straightened back into the breakage groove, the straightening device easily getting stuck, the breakage end being too long, and the breakage end being difficult to fix.

[0010] An integrated, lightweight ground wire breakage repair device includes:

[0011] The winding mechanism includes asymmetrical U-shaped grooves that, during rotation, work in conjunction with a moving platform to spirally wind up broken strands of ground wire.

[0012] The strand breaking and fixing mechanism, connected to the winding mechanism, includes a clamp box and a push-clamp mechanism that applies a pushing force to the clamp box to open the elastic clip and clamp it onto the ground wire. The strand breaking and fixing is performed immediately after the ground wire is wound back.

[0013] The rotating mechanism has a fixed part that is fixed to the connecting base and a rotating part that is fixed to the strand breaking and fixing mechanism. The rotating part drives the rotation of the connecting whole of the straightening mechanism and the strand breaking and fixing mechanism around the fixed part, thereby changing the opening direction of the straightening mechanism.

[0014] The winding mechanism includes a gear transmission mechanism that drives the rotation of the active winding core. The active winding core has a driven winding core coaxially mounted thereon, and the driven winding core is covered with a driven winding sleeve. The gear transmission mechanism meshes with the active winding sleeve mounted on the outside of the active winding core, thereby driving the rotation of the active winding core. The driven winding core is driven by the active winding core and rotates synchronously with the active winding core to wind the wire.

[0015] The cable straightening mechanism also includes a base, which serves as a longitudinal fixing support; the front shell, the middle layer plate, and the rear shell are fixed side by side on the base to form the outer shell; a first pad is provided between the front shell and the middle layer plate, and a second pad is provided between the middle layer plate and the rear shell; the gear transmission mechanism is located inside the outer shell.

[0016] The driven winding core and the driven winding sleeve are covered with driven winding core locking parts, which are fixed on the rear housing to lock the entire winding mechanism from the end.

[0017] A nylon gasket is installed between the rear outer shell and the driven winding core locking component and the driven winding sleeve; a nylon gasket is provided between the active winding core, the active winding sleeve and the front outer shell.

[0018] The gear transmission mechanism includes two meshing bevel gears as input ends. The driving bevel gear is connected to the output end of the winding motor and is driven by the winding motor. The driven bevel gear meshes with the driving bevel gear, converting rotation in the horizontal plane to rotation in the vertical plane. The input gear is coaxially connected with the driven bevel gear, and the input gear and the driven bevel gear are fixed in the housing through the input shaft. Two sets of identical idler gears are fixed in the housing in parallel through the idler gear shaft and mesh with the input gears respectively. At the same time, the two idler gears mesh with the driving winding sleeve respectively.

[0019] The active winding core is a U-shaped core with an opening. One side of the active winding core has a circular winding opening that is larger than the outer diameter of the ground wire. The inner diameter of the winding opening gradually decreases from the cross-section of the active winding core inward, that is, the surface of the circular winding opening is an arc surface. The other side of the active winding core has a U-shaped groove that is asymmetrical from left to right.

[0020] The driven winding sleeve is a U-shaped core arranged coaxially with the active winding core and with its opening located in the same position.

[0021] The strand breaking and fixing mechanism is connected and integrated with the wire straightening mechanism through a connecting plate; the strand breaking and fixing mechanism includes a clamp box and a push clamp mechanism, the push clamp mechanism applies a pushing force to the clamp box to push out the elastic clips stored in the clamp box and clamp the wire.

[0022] The end of the clip box near the opening of the cable straightening mechanism is provided with a concave arc-shaped port, which is opposite to the opening of the cable straightening mechanism; the concave arc-shaped port is provided with a convex wedge block inside to assist in opening the elastic clip.

[0023] The end of the clip box is provided with two sets of identical optical axis clips, on which optical axes are installed as the limiting shafts of the push plate.

[0024] The push-clamp mechanism includes a push plate, which is slidably connected inside the clamp box. At the same time, the push plate is locked to the push plate connector by a quick-release pin. The push plate connector moves up and down through a screw mechanism, thereby driving the push plate to move inside the clamp box.

[0025] It also includes a lifting mechanism, including a slide rail and a limiting slider slidably connected to the slide rail. The slide rail is fixedly connected to the device base through a U-shaped connecting frame, and the limiting slider is integrally connected to the clamp box. The movement of the limiting slider on the slide rail drives the lifting and lowering of the clamp box.

[0026] The rotating part of the rotating mechanism includes a rotary motor, which is connected to the connecting base via a worm gear transmission mechanism. The connecting base is used to connect to the moving platform. The worm gear is connected to the output end of the rotary motor. The fixed part includes a transmission shaft, which is disposed on the connecting base. The worm gear is coaxially fixed on the transmission shaft, and the worm gear meshes with the worm. The transmission shaft is connected to the U-shaped connecting frame via bearings. At the same time, the rotary motor is fixed on the U-shaped connecting frame.

[0027] By employing the above technical solution, this utility model application has at least the following beneficial effects:

[0028] This utility model integrates the wire straightening device and the broken strand fixing device, thereby achieving overall lightweight design. It also provides a wire straightening core structure design that conforms to the shape of the broken strand ground wire and an active rotation method, which makes it easier to straighten the broken strand ground wire back into the broken strand groove, avoiding the problem of the device getting stuck. Ultimately, it achieves stable repair effect of broken strand ground wire and better power preservation effect of the repaired ground wire.

[0029] The integrated design of the wire straightening mechanism and the strand fixing mechanism allows for quick clamping of the wire after the straightening operation, securing the strand end by pushing and clamping the elastic clip, thus solving the problem of excessively long pre-reserved strand ends. Furthermore, the integrated strand repair module uses fewer drive motors (this device uses only three motors), shortening the travel distance and significantly reducing the overall weight, achieving a lightweight design. Attached Figure Description

[0030] Figure 1 A schematic diagram of the integrated lightweight ground wire strand breakage repair device provided by this utility model;

[0031] Figure 2 Front view of the integrated lightweight ground wire strand breakage repair device provided by this utility model;

[0032] Figure 3 for Figure 2 The left view;

[0033] Figure 4 for Figure 2 Top view;

[0034] Figure 5 for Figure 1 A partially enlarged sectional view of the winding mechanism;

[0035] Figure 6 for Figure 1 Left view of the center-lifting mechanism;

[0036] Figure 7 for Figure 1 A partially enlarged sectional view of the interrupted section fixing mechanism;

[0037] Figure 8 This is an isometric view of the active wire core straightening device in this utility model;

[0038] Figure 9 This is a front view of the active wire core straightening device in this utility model;

[0039] Figure 10 for Figure 9 AA view;

[0040] Figure 11 for Figure 9 CC view;

[0041] Figure 12 for Figure 1 Axonometric view of a medium-elasticity clip;

[0042] Figure 13 A schematic diagram illustrating how a wedge block assists in opening the elastic clip;

[0043] Figure 14 This is a schematic diagram showing the opening of the wire straightening mechanism facing the ground.

[0044] Figure 15 This is a schematic diagram of the wire straightening process of the wire straightening mechanism;

[0045] in:

[0046] 1-Straightening mechanism, 2-Lifting mechanism, 201-Slide rail, 202-Limit slider, 3-Strand breaking fixing mechanism, 4-Push clamp mechanism, 5-Rotation mechanism, 501-Rotary motor, 6-Device base, 7-Connecting plate, 8-Active straightening core, 9-Active straightening sleeve, 10-Front outer shell, 11-Plug screw, 12-Nylon gasket, 13-Middle layer plate, 14-Straightening core gasket, 15-Rear outer shell, 16-Driven straightening sleeve, 17-Driven straightening core, 18-Driven straightening core locking piece, 19-First nylon gasket, 20-Second nylon gasket, 21-Idle 22-Input gear, 23-Input shaft, 24-Driving bevel gear, 25-Driven bevel gear, 26-Straightening motor, 27-First pad, 28-Second pad, 29-Idler shaft, 30-Clamp box, 301-Concave arc-shaped port, 302-Wedge block, 31-Quick-release pin, 32-Push plate connector, 33-Push plate, 34-Push clamp screw guide shaft, 35-Push clamp screw, 36-Push clamp screw motor, 37-Push clamp screw seat, 38-Optical shaft, 39-Optical shaft clamp, 40-Base, 41-Connecting base, 42-U-shaped connecting frame. Detailed Implementation

[0047] To better explain and facilitate understanding of this utility model, the technical solution and effects of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] Combination Figure 1-14 As shown, an integrated lightweight ground wire strand breakage repair device includes a wire straightening mechanism 1, a strand breakage fixing mechanism 3, a lifting mechanism 2, a push clamping mechanism 4, a rotating mechanism 5, a device base 6, and a connecting plate 7. The wire straightening mechanism 1 and the strand breakage fixing mechanism 3 are fixedly connected front and rear. The connected wire straightening mechanism 1 and strand breakage fixing mechanism 3 are installed on the device base 6 through the lifting mechanism 2.

[0049] The wire straightening mechanism 1 is as follows: Figure 5-6As shown, the device includes a gear transmission mechanism that drives the rotation of the active winding core 8. A driven winding core 17 is coaxially mounted on the active winding core 8, and a driven winding sleeve 16 is fitted over the driven winding core 17. The driven winding core 17 is driven by the active winding core 8 and rotates synchronously with it to wind the wire. A winding motor 26 drives the gear transmission mechanism to rotate, and the gear transmission mechanism meshes with the active winding sleeve 9 fitted over the active winding core 8, thereby driving the rotation of the active winding core 8. A winding core washer 14 is provided between the active winding core 8 and the active winding sleeve 9.

[0050] The active winding sleeve 9 and the active winding core 8 are aligned and tightly attached to the driven winding sleeve 16 and the driven winding core 17.

[0051] The cable straightening mechanism 1 also includes a base 40, which serves as a longitudinal support. The front outer shell 10, the middle layer plate 13, and the rear outer shell 15 are fixed to the base 40 side by side by four sets of identical screws 11, forming the outer shell. A first pad 27 is provided between the front outer shell 10 and the middle layer plate 13, and a second pad 28 is provided between the middle layer plate 13 and the rear outer shell 15. The gear transmission mechanism is located inside the outer shell. The driven cable straightening core 17 and the driven cable straightening sleeve 16 are covered with driven cable straightening core locking members 18, which are fixed to the rear outer shell 15, locking the entire cable straightening mechanism 1 from the end.

[0052] A nylon gasket is installed between the rear outer shell 15 and the driven winding core locking member 18 and the driven winding sleeve 16, including a first nylon gasket 19 and a second nylon gasket 20 arranged opposite to each other, so as to fix the driven winding core locking member 18 and the driven winding sleeve 16 to the rear outer shell 15.

[0053] A nylon gasket 12 is provided between the active winding core 8, the active winding sleeve 9 and the front outer shell 10 to lock them together.

[0054] The gear transmission mechanism includes two meshing bevel gears as input ends. The driving bevel gear 24 is connected to the output end of the winding motor 26 and is driven by the motor. The driven bevel gear 25 meshes with the driving bevel gear 24, converting rotation in the horizontal plane to rotation in the vertical plane. The input gear 22 is coaxially connected to the driven bevel gear 25. The input gear 22 and the driven bevel gear 25 are fixed inside the housing via an input shaft 23. A locking end and a washer are fitted between the input shaft 23 and the housing as needed. Two identical sets of idler gears 21 are fixed in parallel inside the housing via idler gear shafts 29 and mesh with the input gear 22 respectively. Simultaneously, the two sets of identical idler gears 21 mesh with the driving winding sleeve 9 respectively.

[0055] The active winding core 8 is a U-shaped core with an opening. One side of the active winding core 8 has a circular winding opening larger than the outer diameter of the ground wire. The inner diameter of the winding opening gradually decreases from the cross-section of the active winding core 8 inwards, meaning the surface of the circular winding opening is arc-shaped. This ensures that the winding mechanism can form a certain angle with the ground wire when winding broken strands. The other side of the active winding core 8 has an asymmetrical U-shaped groove. During the winding of broken strands, due to the combined action of compression and friction, the broken strands will be bound within the asymmetrical U-shaped groove on one side of the active winding core 8. Under pressure, the broken strands will rotate with the rotation of the active winding core 8. Simultaneously, combined with the moving platform mounted on the ground wire broken strand repair device, the forward movement of the moving platform and the rotational movement of the winding mechanism combine to form a spiral motion, thereby realizing the winding of broken strands of the ground wire. Specifically, the winding motor 26 drives the active bevel gear 24 to rotate, the active bevel gear 24 drives the driven bevel gear 25 to rotate, and the input gear 22 drives the two sets of identical idler gears 21 meshing with it to rotate. The rotation of the two sets of idler gears 21 drives the active winding sleeve 9 meshing with them to rotate together with the active winding core 8, the driven winding core 17 and the driven winding sleeve 16 to rotate synchronously.

[0056] The driven winding sleeve 16 is a U-shaped core arranged coaxially with the active winding core 8 and with its opening located at the same position. The outer shell is provided with an opening of the same size as the driven winding sleeve 16 and the active winding core 8.

[0057] The process of straightening the thread is as follows Figure 15 As shown, the process of straightening the line begins from... Figure 15 From Figure (a) through Figure (b) to Figure (c), the cross-section changes over time. During the straightening process, the moving platform's forward motion and the straightening core's rotation combine to form a spiral motion, thus the position of the straightening cross-section is synchronized with the moving platform's forward motion. As can be seen from the movement process of the active straightening core 8 in the figure, within the straightening cross-section, the normal reaction force applied to the broken strand by the working surface of the active straightening core 8 can be decomposed into a tangential force and a centripetal force. The combined action of these two forces causes the broken strand to rotate around the ground wire while slowly approaching the center of the ground wire until it enters the wire groove. Subsequently, the arc-shaped inner wall of the active straightening core 8 ensures that the broken strand will not detach. Finally, the straightening work is completed. This spiral winding method improves the constraint on broken strands while avoiding the problem of the winding core getting stuck. The active rotation not only improves the winding efficiency but also reduces the driving force of the motor, achieving the winding of broken strands with very little driving force and accurately winding the broken strands back into the groove.

[0058] like Figure 7As shown, the strand fixing mechanism 3 is integrated with the straightening mechanism 1 via a connecting plate 7, and the connection with the connecting plate 7 is secured with screws. The strand fixing mechanism 3 includes a clip box 30 and a push-clamp mechanism 4 that applies a pushing force to the clip box 30 to clamp the elastic clip onto the wire. The push-clamp mechanism 4 includes a quick-release pin 31, a push plate connector 32, a push plate 33, a push-clamp screw guide shaft 34, a push-clamp screw 35, a push-clamp screw motor 36, a push-clamp screw seat 37, an optical shaft 38, and two sets of identical optical shaft clamps 39. The clip box 30 is used to store the elastic clips for subsequent push-clamping to fix the strand ends. The push plate 33 is slidably connected inside the clip box 30 and can move up and down along the slide rail of the clip box 30. At the same time, the push plate 33 is locked to the push plate connector 32 via the quick-release pin 31. The push plate connector 32 moves up and down via the screw mechanism, thereby driving the push plate 33 to move within the clip box 30. The lead screw mechanism includes a push-clamp lead screw motor 36, a push-clamp lead screw 35 connected to the output end of the push-clamp lead screw motor 36 and mounted on the push-clamp lead screw seat 37 at both ends, and driven by the push-clamp lead screw motor 36; the push plate connector 32 is threadedly connected to the push-clamp lead screw 35, and the rotation of the push-clamp lead screw 35 drives the push plate connector 32 to move axially along the push-clamp lead screw 35; at the same time, two sets of push-clamp lead screw guide shafts 34 are arranged parallel to the push-clamp lead screw 35, slidably connected to the push plate connector 32, and mounted on the push-clamp lead screw seat 37 at both ends, for guiding the movement of the push plate connector 32. When it is necessary to fill the push plate 33 with elastic clips, the quick-release pin 31 can be pulled out, the push plate 33 can be removed, and then the elastic clips can be filled.

[0059] The clamp box 30 has a concave arc-shaped port 301 at its end near the opening of the wire straightening mechanism 1, opposite to the opening of the wire straightening mechanism 1. This concave arc-shaped port 301 is used to position the ground wire after wire straightening, preparing for fixing broken strands of the ground wire. Inside the concave arc-shaped port 301 is a convex wedge-shaped block 302. When the push plate 33 pushes the elastic clip to the wedge-shaped block 302, the tip of the wedge-shaped block 302 inserts into the opening of the elastic clip, assisting in opening the elastic clip. Figure 13 As shown.

[0060] The clamp box 30 has two identical optical axis clamps 39 at its end, and an optical axis 38 is mounted on the optical axis clamp 39 as a limiting axis for the push plate 33. The optical axis 38 is detachably mounted on the optical axis clamp 39 to facilitate the filling of the clamp box 30 with elastic clips.

[0061] The lifting mechanism 2 includes a slide rail 201 and a limiting slider 202 slidably connected to the slide rail 201. The slide rail 201 is fixedly connected to the device base 6 through a U-shaped connecting frame 42. The limiting slider 202 is integrally connected to the clamp box 30 of the strand fixing mechanism 3. The movement of the limiting slider 202 on the slide rail 201 drives the lifting of the clamp box 30.

[0062] The rotating mechanism 5 includes a fixed part and a rotating part. The rotating part includes a rotary motor 501, which is connected to the connecting base 41 via a worm gear transmission mechanism. The connecting base 41 is used to connect to the moving platform to realize the movement of the entire ground wire strand repair device. The worm gear is connected to the output end of the rotary motor 501. The fixed part includes a drive shaft, which is set on the connecting base 41. The worm gear is coaxially fixed on the drive shaft, and the worm gear meshes with the worm. The drive shaft is connected to the U-shaped connecting frame 42 via a bearing. At the same time, the rotary motor 501 is fixed on the U-shaped connecting frame 42. When the rotary motor 501 is started, it drives the worm gear to rotate. Since the worm gear is fixed, the worm gear, through meshing with the worm gear, drives the rotary motor 501 and the U-shaped connecting frame 42 fixed to it to rotate along the worm gear. Due to the connection between the U-shaped connecting frame 42 and the lifting mechanism 2, the strand breakage fixing mechanism 3 and the straightening mechanism 1 fixed to it are indirectly driven to rotate as a whole. The opening direction of the straightening mechanism 1 can be changed from... Figure 2 The displayed upward direction is changed to face the ground or from facing the ground to facing upward, and the opening direction of the wire straightening mechanism 1 is changed to face the ground as shown in the following state. Figure 14 As shown (the worm gear structure is omitted in this figure to show this state structure).

[0063] An integrated, lightweight ground wire strand breakage repair method, employing the aforementioned integrated, lightweight ground wire strand breakage repair device, operates as follows:

[0064] During the strand breakage repair work, the openings of the straightening mechanism and the strand breakage fixing mechanism 3 always face the ground, i.e., they are aligned with the ground. Figure 2 The directions shown in the diagram are opposite. In this state, the limit slider of the lifting mechanism 2 descends, and the clamp box 30 of the strand fixing mechanism 3 approaches the ground wire, positioning the ground wire at the concave arc-shaped port 301 to better clamp the elastic clip onto the ground wire; the limit slider of the lifting mechanism 2 rises, and the clamp box 30 of the strand fixing mechanism 3 moves closer to the ground wire and further away from the ground wire.

[0065] In use, the integrated lightweight ground wire strand repair device is mounted on a robot. This robot can be any robot suitable for strand repair work. The robot is connected to the device base 6 via a connecting platform, and then moved to the designated position at the end of the broken strand. The lifting mechanism 2 lowers the entire connection between the straightening mechanism 1 and the strand fixing mechanism 3 to the designated position, allowing the ground wire to enter through the openings of the active straightening core 8 and the driven straightening core 17, ensuring it is completely enveloped by the active straightening core 8. The entire device is then adjusted so that the straightening mechanism faces outwards towards the end of the broken strand, completing the preparation work for strand repair.

[0066] Performing the strand rewinding function: The winding motor 26 starts, rotating the active bevel gear 24, which in turn drives the driven bevel gear 25. The input gear 22 drives two identical idler gears 21 meshing with it. The rotation of the two idler gears 21 causes the active winding sleeve 9, active winding core 8, driven winding core 17, and driven winding sleeve 16, which mesh with them, to rotate. Through the asymmetrical U-shaped grooves of the winding core, the broken strand of ground wire is rotated back. With the assistance of the robot providing forward movement, a spiral motion is formed, pressing the broken strand of ground wire into the broken strand groove.

[0067] Executing the strand breakage fixing function: The straightening mechanism remains stationary to prevent the broken strand from breaking open again. At this time, the strand breakage fixing mechanism 3 is positioned at the designated location on the ground wire through the concave arc-shaped port 301. The push-clamp screw motor 36 is started, and the push-clamp screw 35 drives the push plate connector 32 to move, thereby driving the push plate 33 to move synchronously, pushing the elastic clips stored in the clip box 30 outward. When the elastic clips are pushed to the box opening, the wedge block 302 at the box opening assists the elastic clips to open; the push plate 33 continues to push the elastic clips out of the clip box 30 until the topmost elastic clip is completely pushed out. At the same time, the elastic clips complete the clamping action, and the broken strand end is firmly fixed to the ground wire by the elastic clips, preventing the broken strand end from breaking open again. Before the elastic clip is fully extended, the force of the push plate connector 32 driving the push plate 33 to move can cause the push plate 33 to apply an external force to the clip box 30, which can move it and its connected limiting slider closer to the ground wire, thereby better positioning the ground wire through the concave arc-shaped port 301, and thus better clamping the elastic clip on the ground wire.

[0068] After the broken strand repair work is completed, the lifting mechanism 2 rises and retracts to prepare for the next broken strand repair.

Claims

1. An integrated, lightweight ground wire strand breakage repair device, characterized in that, include: The wire straightening mechanism (1) includes a U-shaped groove that is asymmetrical on the left and right, which works in conjunction with the moving platform to spirally straighten and collect broken strands of ground wire during rotation; The strand breaking and fixing mechanism (3) is connected to the wire straightening mechanism (1) and includes a clip box (30) and a push-clamp mechanism (4) that applies a pushing force to the clip box (30) to open the elastic clip and clamp it to the ground wire. The strand breaking and fixing is performed immediately after the ground wire is straightened back. The rotating mechanism (5) has a fixed part that is fixed to the connecting base (41) and a rotating part that is fixed to the strand breaking fixing mechanism (3). The rotating part drives the rotation of the connecting whole of the straightening mechanism (1) and the strand breaking fixing mechanism (3) around the fixed part, changing the opening direction of the straightening mechanism (1).

2. The integrated lightweight ground wire strand breakage repair device according to claim 1, characterized in that: The winding mechanism (1) includes a gear transmission mechanism, which drives the rotation of the active winding core (8). The active winding core (8) is coaxially provided with a driven winding core (17), and the driven winding core (17) is covered with a driven winding sleeve (16). The gear transmission mechanism meshes with the active winding sleeve (9) covered with the active winding core (8), thereby driving the rotation of the active winding core (8). The driven winding core (17) is driven by the active winding core (8) and rotates synchronously with the active winding core (8) to wind the wire.

3. The integrated lightweight ground wire strand breakage repair device according to claim 2, characterized in that: The cable straightening mechanism (1) also includes a base (40) which serves as a longitudinal fixed support; the front outer shell (10), the middle layer plate (13) and the rear outer shell (15) are fixed side by side on the base (40) to form an outer shell; a first pad (27) is provided between the front outer shell (10) and the middle layer plate (13), and a second pad (28) is provided between the middle layer plate (13) and the rear outer shell (15); the gear transmission mechanism is located inside the outer shell; The driven winding core (17) and the driven winding sleeve (16) are covered with driven winding core locking parts (18), which are fixed on the rear housing (15) to lock the entire winding mechanism (1) from the end.

4. The integrated lightweight ground wire strand breakage repair device according to claim 3, characterized in that: A nylon gasket is installed between the rear outer shell (15) and the driven winding core locking member (18) and the driven winding sleeve (16); a nylon gasket (12) is provided between the active winding core (8), the active winding sleeve (9) and the front outer shell (10).

5. The integrated lightweight ground wire strand breakage repair device according to claim 2, characterized in that: The gear transmission mechanism includes two meshing bevel gears as input ends. The driving bevel gear (24) is connected to the output end of the winding motor (26) and is driven by the winding motor (26). The driven bevel gear (25) meshes with the driving bevel gear (24) to convert the rotation on the horizontal plane to the rotation on the vertical plane. The input gear (22) is coaxially connected with the driven bevel gear (25). The input gear (22) and the driven bevel gear (25) are fixed in the housing through the input shaft (23). Two sets of identical idler gears (21) are fixed in the housing in parallel through the idler gear shaft (29) and mesh with the input gear (22) respectively. At the same time, the two idler gears (21) mesh with the driving winding sleeve (9) respectively.

6. The integrated lightweight ground wire strand breakage repair device according to claim 2, characterized in that: The active winding core (8) is a U-shaped core with an opening. One side of the active winding core (8) has a circular winding opening larger than the outer diameter of the ground wire. The inner diameter of the winding opening gradually decreases from the cross-section of the active winding core (8) inward, that is, the surface of the circular winding opening is an arc surface. The other side of the active winding core (8) has a U-shaped groove that is asymmetrical from left to right. The driven winding sleeve (16) is a U-shaped core arranged coaxially with the active winding core (8) and with its opening located in the same position.

7. The integrated lightweight ground wire strand breakage repair device according to claim 1, characterized in that: The strand fixing mechanism (3) is connected and integrated with the wire straightening mechanism (1) through the connecting plate (7); the strand fixing mechanism (3) includes a clip box (30) and a push clamping mechanism (4), the push clamping mechanism (4) applies a pushing force to the clip box (30) to push out the elastic clip stored in the clip box (30) and clamp the wire; The end of the clip box (30) near the opening of the cable winding mechanism (1) is provided with a concave arc-shaped port (301) opposite to the opening of the cable winding mechanism (1); the concave arc-shaped port (301) is provided with a convex wedge-shaped block (302) to assist in opening the elastic clip. The end of the clip box (30) is provided with two sets of identical optical axis clips (39), and an optical axis (38) is installed on the optical axis clip (39) as the limiting axis of the push plate (33).

8. The integrated lightweight ground wire strand breakage repair device according to claim 7, characterized in that: The push-clamp mechanism (4) includes a push plate (33), which is slidably connected in the clamp box (30). At the same time, the push plate (33) is locked with the push plate connector (32) through a quick-release pin (31). The push plate connector (32) moves up and down through a screw mechanism, thereby driving the push plate (33) to move in the clamp box (30).

9. The integrated lightweight ground wire strand breakage repair device according to claim 1, characterized in that: It also includes a lifting mechanism, including a slide rail (201) and a limiting slider (202) slidably connected to the slide rail (201). The slide rail (201) is fixedly connected to the device base (6) through a U-shaped connecting frame (42). The limiting slider (202) is integrally connected to the clamp box (30). The movement of the limiting slider (202) on the slide rail (201) drives the lifting of the clamp box (30).

10. The integrated lightweight ground wire strand breakage repair device according to claim 1, characterized in that: The rotating part of the rotating mechanism (5) includes a rotating motor (501), which is connected to the connecting base (41) via a worm gear transmission mechanism. The connecting base (41) is used to connect to the moving platform. The worm is connected to the output end of the rotating motor (501). The fixed part includes a transmission shaft, which is set on the connecting base (41). The worm gear is coaxially fixed on the transmission shaft, and the worm gear meshes with the worm. The transmission shaft is connected to the U-shaped connecting frame (42) via a bearing. At the same time, the rotating motor (501) is fixed on the U-shaped connecting frame (42).

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