A walking mechanism and a broken end repair device

Abstract

This invention relates to a walking mechanism and a strand breakage repair device, comprising a support, walking wheels, a tensioning wheel, and an electric lifting push rod. The walking wheels are mounted on the support, and the grooves on the rim of the walking wheels are used to engage with the ground wire downwards. The tensioning wheel is mounted on the electric lifting push rod. The electric lifting push rod is fixed to the support and is used to push the tensioning wheel upwards, so that the grooves on the rim of the tensioning wheel engage with the ground wire upwards. The walking mechanism of this invention moves downwards along the ground wire where strand breakage repair is needed by engaging with the ground wire, and the electric lifting push rod pushes the tensioning wheel upwards to engage with the ground wire, ensuring that the walking mechanism does not detach from the ground wire when moving along it. The walking mechanism moves the strand breakage repair structure of the strand breakage repair device to the location where strand breakage repair is needed, which not only greatly reduces the labor intensity of workers but also significantly improves the safety of the operation.

Description

Technical Field

[0001] This invention relates to a walking mechanism and a device for repairing broken strands. Background Technology

[0002] High-voltage transmission lines are long and located in open fields. Due to geographical conditions, overhead ground wires are prone to strand breakage during operation due to strong winds, lightning, icing, corrosion, and other factors. If broken strands are not addressed promptly, they will further unravel under tension and torque, causing the broken wires to droop to both sides. These drooping wires may approach or even cross the insulation safety distance or directly lap onto the conductor, causing a short circuit and tripping the circuit breaker, resulting in a safety accident. Current ground wire strand repair methods generally involve manually winding the drooping strands back into place, which requires working at height, is physically demanding, and carries certain safety risks. Summary of the Invention

[0003] The purpose of this invention is to provide a walking mechanism and a broken strand repair device, which can at least solve some of the defects in the prior art.

[0004] To achieve the above objectives, the technical solution of the present invention is a walking mechanism for a strand breakage repair device, comprising a bracket, a walking wheel, a tensioning wheel, and an electric lifting push rod; the walking wheel is mounted on the bracket, and the groove on the rim of the walking wheel is used to hold it downwards onto the ground wire; the tensioning wheel is mounted on the electric lifting push rod; the electric lifting push rod is fixed to the bracket and is used to push the tensioning wheel upwards so that the groove on the rim of the tensioning wheel holds it upwards onto the ground wire.

[0005] As one embodiment, there are two walking wheels, which are respectively installed at both ends of the bracket; there is one tensioning wheel, which is located between the two walking wheels.

[0006] As one embodiment, the walking mechanism further includes a walking motor and a reducer. The walking motor and the reducer are both mounted on the bracket, and the walking motor is connected to one of the walking wheels through the reducer to drive the walking wheel to rotate.

[0007] As one implementation method, the bracket is equipped with a power supply for supplying power to the electric lifting push rod and the walking motor.

[0008] As one embodiment, the walking mechanism further includes a housing that covers the outside of the electric lifting push rod and is fixed to the bracket.

[0009] As one embodiment, a C-shaped opening is provided on one side of the housing to serve as a grounding channel.

[0010] As one implementation method, the bracket is also provided with a guide rod for guiding the ground wire into the groove on the rim of the walking wheel.

[0011] As one embodiment, the tensioning wheel is installed at the upper end of the telescopic rod of the electric lifting push rod, and the cylinder of the electric lifting push rod is fixed to the lower part of the bracket through a connecting plate.

[0012] As one embodiment, the bracket includes a left bracket and a right bracket, which are fixedly connected.

[0013] The present invention also provides a broken limb repair device, including the walking mechanism described in the above item.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The walking mechanism of the present invention moves downwards by the walking wheel and is locked on the ground line that needs to be repaired by the walking wheel, and pushes the tensioning wheel upwards by the electric lifting push rod to lock on the ground line, so as to ensure that the walking mechanism will not detach from the ground line when it moves on the ground line.

[0016] (2) The present invention uses a walking mechanism to move the broken strand repair structure of the broken strand repair device to the location where the broken strand needs to be repaired, which not only greatly reduces the labor intensity of the workers, but also significantly improves the safety of the operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A front view of the walking mechanism provided for implementation of the present invention;

[0019] Figure 2 Right view of the walking mechanism provided for implementation of the present invention;

[0020] Figure 3 A three-dimensional structural diagram of the walking mechanism provided for the implementation of the present invention after removing the housing;

[0021] Figure 4 A schematic diagram of the working state of the resetter provided for the implementation of the present invention;

[0022] Figure 5 Front view of the resetter provided for implementation of the present invention;

[0023] Figure 6Left view of the resetter provided for an embodiment of the present invention;

[0024] Figure 7 A perspective view of the resetter provided for the implementation of the present invention;

[0025] Figure 8 A three-dimensional structural schematic diagram of the wire twisting mechanism provided for the implementation of the present invention;

[0026] Figure 9 A three-dimensional structural diagram of the wire twisting mechanism provided for the implementation of the present invention after removing the front outer connecting plate;

[0027] Figure 10 A three-dimensional structural diagram of the twisting mechanism provided for the implementation of the present invention after removing the front outer connecting plate and the front inner connecting plate;

[0028] Figure 11 A schematic diagram of the planar structure of the bridge and gear mechanism assembly provided for the implementation of the present invention;

[0029] Figure 12 A three-dimensional structural schematic diagram of the bridge and gear mechanism assembly provided for the implementation of the present invention;

[0030] Figure 13 A three-dimensional structural diagram of the gear mechanism after removing the front upright plate, provided for the implementation of the present invention;

[0031] Figure 14 A schematic diagram of the internal structure of the gear mechanism provided for the implementation of this invention;

[0032] Figure 15 A schematic diagram of the working state of the clamp provided for the implementation of the present invention;

[0033] Figure 16 A schematic diagram of the clamp provided for the implementation of this invention;

[0034] Figure 17 A schematic diagram of the clamp after removing the front bracket, provided for implementation of the present invention;

[0035] Figure 18 A three-dimensional structural diagram of the clamp provided for the implementation of the present invention;

[0036] Figure 19 A schematic diagram of the working state of the pre-twisted wire winding mechanism provided for the implementation of the present invention;

[0037] Figure 20 A three-dimensional structural schematic diagram of the pre-twisted wire winding mechanism provided for the implementation of the present invention;

[0038] Figure 21 A three-dimensional structural diagram of the pre-twisted wire winding mechanism, pre-twisted wire, and grounding wire assembly provided for the implementation of this invention;

[0039] Figure 22 A three-dimensional structural diagram of the first winding device and the second winding device assembly provided for the implementation of the present invention;

[0040] Figure 23 A three-dimensional structural schematic diagram of the first winding device provided for the implementation of the present invention;

[0041] Figure 24 A three-dimensional structural diagram of the first winding device after the support plate is removed, provided for the implementation of the present invention;

[0042] Figure 25 A three-dimensional structural schematic diagram of the third-stage gear provided for the implementation of the present invention;

[0043] Figure 26 A three-dimensional structural schematic diagram of the winding mandrel provided for the implementation of the present invention;

[0044] In the diagram: 1-Pre-twisted wire winding mechanism; 101-First winding device; 1011-Front support plate; 1012-Rear support plate; 1013-Third stage gear; 10131-Support ring; 1014-Second stage gear; 1015-First stage gear; 1016-Winding mandrel; 1017-Wire guide hole; 1018-V-shaped opening; 1019-Guide block; 102-Second winding device; 103-First winding motor; 104-Second winding motor; 105-Longitudinal beam; 106-Change wheel; 107-Guide rail; 108-Lifting device; 109-V-shaped guide; 110-Connecting block;

[0045] 2-Traveling mechanism; 201-Traveling wheel; 202-Tensioning wheel; 203-Housing; 204-Traveling motor; 205-Reducer; 206-Right support; 207-Left support; 208-Electric lifting push rod; 209-Guide rod;

[0046] 3-Ground wire; 4-Resetter connector; 5-Clamp connector;

[0047] 6-Resetter; 601-Gear mechanism; 6011-Motor; 6012-Rear upright plate; 6013-Front upright plate; 6014-First stage gear; 6015-Second stage gear; 6016-Third stage gear; 602-Electric bridge; 6021-Conductive ring; 6022-Inverted V-shaped electrode; 603-Wire twisting mechanism; 6031-Electric push rod; 6032-Outer connecting plate; 6033-Inner connecting plate; 6034-Outer connecting plate guide groove; 6035-Guide post; 6036-Inner connecting plate guide groove; 6037-Clamping body; 6038-Drive shaft.

[0048] 7-Winder connector; 8-Clamping device; 801-Front support plate; 802-Rear support plate; 803-Right push rod; 804-Left push rod; 805-Left connecting rod; 806-Right connecting rod; 807-Cross rod; 808-Lead screw; 809-Base; 810-Lead screw lifting motor;

[0049] 9-Pre-twisted wire; 10-Limiting ring; 11-Broken wire fixing point; 12-Clamp. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0051] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0053] Example 1

[0054] like Figures 1-3As shown, this embodiment provides a walking mechanism 2 for a strand breakage repair device, including a bracket, a walking wheel 201, a tensioning wheel 202, and an electric lifting push rod 208. The walking wheel 201 is mounted on the bracket, and the groove on the rim of the walking wheel 201 is used to hold it downwards onto the ground wire 3. The tensioning wheel 202 is mounted on the electric lifting push rod 208. The electric lifting push rod 208 is fixed to the bracket and is used to push the tensioning wheel 202 upwards, so that the groove on the rim of the tensioning wheel 202 holds it upwards onto the ground wire 3. In this embodiment, the walking mechanism 2 moves downwards onto the ground wire 3 where strand breakage repair is needed by the walking wheel 201, and pushes the tensioning wheel 202 upwards onto the ground wire 3 by the electric lifting push rod 208, ensuring that the walking mechanism 2 will not detach from the ground wire 3 when moving on the ground wire 3. The walking mechanism 2 drives the strand breakage repair structure of the strand breakage repair device to the position where strand breakage repair is needed, which not only greatly reduces the labor intensity of the workers, but also significantly improves the safety of the operation.

[0055] In one embodiment, there are two traveling wheels 201, each connected to one end of the support; there is one tensioning wheel 202, connected to the tensioning wheel 202 below the support and located between the two traveling wheels 201. Figure 3 As shown, two traveling wheels 201 are located above the ground line 3 and are engaged downwards on the ground line 3; a tensioning wheel 202 is located below the ground line 3 between the two traveling wheels 201 and is engaged upwards on the ground line 3. The traveling mechanism 2 moves along the ground line 3 to the designated working position through the cooperation of the two traveling wheels 201 and the tensioning wheel 202.

[0056] Specifically, when the walking mechanism 2 needs to drive the broken strand repair structure of the broken strand repair device to move, the two walking wheels 201 are held downwards on the ground wire 3 through the grooves on their wheel rims, and the electric lifting push rod 208 pushes the tension wheel 202 to rise, so that the grooves on the wheel rim of the tension wheel 202 are held upwards on the ground wire 3.

[0057] The walking mechanism 2 in this embodiment also includes a walking motor 204 and a reducer 205. The walking motor 204 and the reducer 205 are both fixedly mounted on the bracket. The walking motor 204 is connected to one of the walking wheels 201 after being reduced in speed by the reducer 205, and is used to drive the walking wheel 201 to rotate.

[0058] Furthermore, a power supply is provided on the bracket to power the electric lifting push rod 208 and the travel motor 204. The power supply also powers other structures of the strand breakage repair device, such as the resetter 6, the clamp 8, and the pre-twisted wire winding mechanism 1.

[0059] Furthermore, a controller is also provided on the support frame to control the movement of the walking mechanism 2, the resetter 6, and the clamp 8.

[0060] The walking mechanism 2 in this embodiment also includes a housing 203, which covers the outside of the electric lifting push rod 208, the power supply, and the controller, and the housing 203 is fixed on the bracket.

[0061] Furthermore, a C-shaped opening is provided on one side of the housing 203. The C-shaped opening serves as a passage for the ground wire 3, holding the ground wire 3 in the groove on the rim of the traveling wheel 201 and the tensioning wheel 202.

[0062] In an optimized embodiment, the bracket is further provided with a guide rod 209, which guides the ground wire 3 into the groove on the rim of the traveling wheel 201 when the traveling mechanism 2 is suspended on the ground wire 3. Specifically, one end of the guide rod 209 is located on the bracket at the part connecting the axle of the traveling wheel 201, such as... Figure 2 and Figure 3 As shown, the guide rod 209 extends from the C-shaped opening on the housing 203. When the traveling mechanism 2 is suspended on the ground wire 3, the guide rod 209 slides along the ground wire 3, thereby guiding the ground wire 3 into the groove on the rim of the traveling wheel 201.

[0063] Specifically, the tensioning wheel 202 is installed at the upper end of the telescopic rod of the electric lifting push rod 208, and the cylinder of the electric lifting push rod 208 is fixed to the lower part of the bracket through a connecting plate. The electric lifting push rod 208 drives the tensioning wheel 202 to rise and lock onto the ground wire 3 by extending and retracting the telescopic rod.

[0064] In this embodiment, the bracket includes a left bracket 207 and a right bracket 206, which are fixedly connected.

[0065] Example 2

[0066] This embodiment provides a broken twig repair device, which includes the walking mechanism 2 in Embodiment 1.

[0067] The broken strand repair device in this embodiment also includes a resetter 6, a clamp 8, and a pre-twisted wire winding mechanism 1. A traveling mechanism 2 is used to move the resetter 6, clamp 8, and pre-twisted wire winding mechanism 1 to a designated working position on the ground wire 3 to be repaired. The resetter 6 is used to rewind the drooping broken wire back onto the ground wire 3. The clamp 8 is used to attach a clamp 12 to the reset broken wire break point for fixation. The pre-twisted wire winding mechanism 1 is used to form a broken wire fixing point 11 after reset and attachment of the clamp 12 to the broken wire break point. Pre-twisted wire 9 is wound around the outer periphery of the clamp 12 at the broken wire break point on the ground wire 3 and within a certain length on both sides. The length of the pre-twisted wire 9 is adjusted according to the bearing capacity of the ground wire 3 and the number of broken strands, generally ranging from 60 to 160 centimeters, i.e., extending 30 to 80 centimeters to each side. In this embodiment, for a 110KV transmission line ground wire, pre-twisted wire 9 is wound within a 40-centimeter length on each side, with the actual length of the pre-twisted wire being approximately 80 centimeters.

[0068] like Figures 4-7 , Figures 11-14 As shown, the resetter 6 includes a gear mechanism 601, an electric bridge 602, and a wire-winding mechanism 603. The gear mechanism 601 includes a motor 6011, a front plate 6013, a rear plate 6012, a gear set, and a drive shaft 6038. The front plate 6013 and the rear plate 6012 are fixedly connected opposite each other. The gear set includes a first-stage gear 6014, a second-stage gear 6015, and a third-stage gear 6016 that mesh sequentially. The gears of the gear set are located between the front plate 6013 and the rear plate 6012. The motor 6011 is installed on the outside of the rear plate 6012 to drive the gear set. The first-stage gear 6014 rotates, thereby sequentially driving the second-stage gear 6015 and the third-stage gear 6016 to rotate. The third-stage gear 6016 is a hollow ring gear. A drive shaft 6038 with a central through hole is fixed to the side wall of the third-stage gear 6016 and extends out of the front upright plate 6013. The central through hole of the drive shaft 6038 is used to hold the ground wire 3. This central through hole is coaxial with the third-stage gear 6016. Below the front upright plate 6013 and the rear upright plate 6012, on the circumference of the third-stage gear 6016 and the drive shaft 6038, a through hole extending to the central through hole of the drive shaft is provided. The ground wire 3 is held in place by the U-shaped opening, which is located in the center hole of the transmission shaft 6038 and the center hole of the third-stage gear 6018. There are two second-stage gears 6015, each of which can rotate freely on its central axis. The two ends of its central axis are supported on the front upright plate 6013 and the rear upright plate 6012. Each second-stage gear 6015 is rotatably connected between the front upright plate 6013 and the rear upright plate 6012 via its respective central axis. The first-stage gear 6014 drives the third-stage gear 6016 simultaneously through the two second-stage gears 6015, thereby enabling the U-shaped opening... The three-stage gear 6016 can operate continuously. Protruding support rings are provided on the annular sidewalls on both sides of the three-stage gear 6016. Limiting ring grooves adapted to the support rings are provided on the opposite sidewalls of the front plate 6013 and the rear plate 6012 at the contact points with the three-stage gear 6016. The support rings are placed within the limiting grooves, and the bottom surfaces of the limiting grooves on both sides form an axial clamping force on the corresponding support rings. The circumference of the limiting grooves radially limits the support rings. The three-stage gear 6016 forms a rotational engagement with the front plate 6013 and the rear plate 6012 through the support rings on both sides.

[0069] like Figures 8-10As shown, the wire twisting mechanism 603 includes an electric push rod 6031, two opposing and fixedly connected outer connecting plates 6032, two opposing and fixedly connected inner connecting plates 6033, and a clamping body 6037. Both the outer connecting plates 6032 and the inner connecting plates 6033 are annular rings with U-shaped openings at the bottom, and lugs are provided on the outer circumference of the annulus. The telescopic end of the electric push rod 6031 is hinged to the lugs of the two inner connecting plates 6033, and the cylinder end of the electric push rod 6031 is hinged to the lugs of the two outer connecting plates 6032. The clamping body 6037 is a ring structure composed of three sector-shaped blocks. The central hole is used to clamp the ground wire 3; a guide post 6035 is inserted into the side wall of each sector block, and the guide post 6035 extends from both side walls of the sector block; three inner connecting plate guide grooves 6036 are provided on the annular side wall of the inner connecting plate 6033, and three outer connecting plate guide grooves 6034 are provided on the annular side wall of the outer connecting plate 6032; the clamping body 6037 is placed between two inner connecting plates 6033, and the two inner connecting plates 6033 are placed between two outer connecting plates 6032; the three guide posts 6035 extending from both sides of the three sector blocks of the clamping body 6037 are respectively placed on the three inner connecting plate guide grooves on both sides. The guide grooves 6036 and 6034 of the two outer connecting plates are located within the guide grooves 6036 and 6034 of the two outer connecting plates. A V-shaped opening is provided on the outer circumference of the two adjacent sector blocks of the clamping body 6037. One end of the drive shaft 6038 is fixedly connected to the outside of the outer connecting plate 6032. The central through hole of the drive shaft 6038 is coaxial with the central hole of the clamping body 6037. The direction of the U-shaped opening of the drive shaft 6038, the direction of the V-shaped opening on the outer circumference of the sector block, and the direction of the U-shaped opening of the outer connecting plate 6032 and the inner connecting plate 6033 are consistent. When the ground wire 3 needs to be clamped, the telescopic rod of the electric push rod 6031 controls the extension and retraction of the outer connecting plate 6032. 32 and the inner connecting plate 6033 rotate relative to each other around the axis of the central hole. The three guide posts 6035 slide in the guide grooves 6034 and 6036 of the outer connecting plate, respectively, thereby driving the three sector blocks of the clamping body 6037 to move relative to each other. The V-shaped opening of the clamping body 6037 opens and connects with the central hole. The ground wire 3 is guided through the V-shaped opening and is inserted into the central hole of the clamping body through the U-shaped opening. Then, the telescopic rod of the electric push rod 6031 extends and retracts in the opposite direction. The three sector blocks of the clamping body 6037 close to form a closed hole and completely clamp the ground wire 3 around the central hole.

[0070] like Figure 5 , Figures 11-12As shown, the bridge 602 includes two conductive rings 6021 and two corresponding inverted V-shaped electrodes 6022. The two conductive rings 6021 are fixed parallel to each other on the outer circumference of the drive shaft 6038. An insulating layer is provided on the contact surface between the outer circumference of the drive shaft 6038 and the conductive rings 6021. Each conductive ring 6021 has an opening corresponding to the U-shaped opening of the drive shaft 6038 for the ground wire 3 to enter the central through hole of the drive shaft 6038. The opening width of the inverted V-shaped electrode 6022 is greater than the opening width on the outer circumference of the conductive ring 6021, so that the inverted V-shaped electrode 6022 can straddle the outer circumference of the conductive ring 6021. When the drive shaft 6038 rotates, the inverted V-shaped electrode 6022... The two ends of the open end slide on the outer circumference of the conductive ring 6021, and the inverted V-shaped electrode 6022 can always maintain at least one end of the open end in contact with the outer circumference of the conductive ring 6021; the two lower ends of one inverted V-shaped electrode 6022 are dynamically pressed on the outer circumference of one conductive ring 6021 as positive contacts, and the two lower ends of the other inverted V-shaped electrode 6022 are dynamically pressed on the outer circumference of another conductive ring 6021 as negative contacts. The upper parts of the two inverted V-shaped electrodes 6022 are respectively connected to the insulating post fixed on the front plate 6013, and are respectively connected to the power control circuit of the resetter 6. The two conductive rings 6021 are respectively connected to the motor terminal of the electric push rod 6031 through wires.

[0071] A wire-passing hole is also provided on the sector block of the clamping body 6037. The broken wire of the broken ground wire 3 is passed through the wire-passing hole of the clamping body 6037 and clamped in the center hole of the clamping body 6037. The drive shaft 6038 of the gear mechanism rotates, which drives the wire-twisting mechanism 603 to rotate. The electric push rod 6031 of the wire-twisting mechanism 603 is continuously powered through the bridge 602. As the wire-twisting mechanism 603 rotates, the broken wire returns to its original position with the rotation of the clamping body 6037, thereby realizing the reset of the broken wire.

[0072] like Figures 16-18As shown, the clamp 8 includes a front support plate 801, a rear support plate 802, a right push rod 803, a left push rod 804, a left connecting rod 805, a right connecting rod 806, a crossbar 807, a lead screw 808, a base 809, and a lead screw lifting motor 810. The front support plate 801 and the rear support plate 802 are fixedly mounted on the base 809. The lead screw lifting motor 810 is fixedly connected to the lower part of the base 809, and the motor shaft is mechanically connected to the lower end of the lead screw 808. The threaded end of the lead screw 808 is threadedly connected to the nut in the middle of the crossbar 807. Both ends of the crossbar 807 are hinged to the lower ends of the left connecting rod 805 and the right connecting rod 806, respectively. The upper ends of the left connecting rod 805 and the right connecting rod 806 are hinged to the lower ends of the left push rod 804 and the right push rod 803, respectively. The upper parts of the left push rod 804 and the right push rod 803 are hinged to the front support plate 801 and the rear support plate 802, respectively, via hinge shafts. The upper ends of the left push rod 804 and the right push rod... The upper end of 803 is provided with a left jaw and a right jaw, which are combined to form a cylindrical jaw. The jaw size of the cylindrical jaw is adapted to the size of the ground wire 3 break point clamp. Guide blocks are provided on both sides of the crossbar 807 adjacent to the front support plate 801 and the rear support plate 802 along the direction of the screw nut axis. Guide grooves are provided at corresponding positions on the front support plate 801 and the rear support plate 802. The guide blocks are placed in the guide grooves on the adjacent front support plate 801 and the rear support plate 802. When the screw lifting motor 810 drives the screw 808 to move up and down, the guide blocks slide up and down in the corresponding guide grooves. The screw 808 drives the crossbar 807 to move up and down. The left connecting rod 805 and the right connecting rod 806 drive the jaws at the ends of the left push rod 804 and the right push rod 803 to open and close, thereby fixing the clamp 12 to the broken wire break point 11, thus fixing the reset broken wire and preventing the reset broken wire from loosening and falling again.

[0073] like Figures 19-22As shown, the pre-twisted wire winding mechanism 1 includes a longitudinal beam 105, two rollers 106 disposed at both ends of the longitudinal beam 105, a first winding device 101, a second winding device 102, a guide rail 107, a first winding motor 103, a second winding motor 104, two lifting devices 108, and two V-shaped guides 109. The rims of the rollers 106 are provided with grooves for holding the ground wire 3. The pre-twisted wire winding mechanism 1 is suspended on the ground wire 3 by the two rollers 106 and is held in place by the grooves on its rims, allowing it to move freely. The pre-twisted wire winding mechanism 1 also includes V-shaped guides. 109, V-shaped guide 109 is used to accurately guide the ground wire 3 into the wire groove on the rim of the pulley 106 when the pre-twisted wire winding mechanism is suspended on the ground wire 3; the V-shaped guide 109 is composed of two guide rods set on the axle of the pulley 106. One end of the two guide rods is fixedly connected to the axle of the pulley 106 or the longitudinal beam 105, and the other end forms a V-shaped groove at a certain angle. The large end of the V-shaped groove opens towards the guide rail 107. The wire groove on the rim of the pulley 106 is located at the root of the V-shaped groove. The ground wire 3 can slide directly into the wire groove of the pulley 106 along the guide rod in the V-shaped groove.

[0074] The first winding device 101 and the second winding device 102 have the same structure, and each of them is provided with a guide block 1019 at its lower end. The shape of the guide block 1019 is adapted to the shape of the slide rail 107. The first winding device 101 and the second winding device 102 are movably connected to the slide rail 107 through the guide block 1019 at their respective lower ends. The first winding device 101 and the second winding device 102 slide freely on the guide rail 107 along the slide rail through the guide block 1019. Electric lifting devices 108 are respectively provided on the upper end. In this embodiment, the electric lifting devices 108 are electric hydraulic push rods. The cylinders at the lower ends of the two lifting devices 108 are respectively fixedly connected to the two ends of the guide rail 107 through connecting blocks 110. The guide rail 107 moves up and down below the longitudinal beam 105 along with the extension and retraction of the lifting devices 108 at both ends. The lifting devices 108 are used to lift the guide rail 107 so that the first winding device 101 and the second winding device 102 are clamped on the overhead ground wire 3 for strand repair.

[0075] like Figures 23-26As shown, both the first winding device 101 and the second winding device 102 include a front support plate 1011, a rear support plate 1012, a winding mandrel 1016, a winding motor, and a gear set. The front support plate 1011 and the rear support plate 1012 are fixedly connected, and the winding mandrel 1016 and the gear set are disposed between the front support plate 1011 and the rear support plate 1012. The gear set includes a first-stage gear 1015, a second-stage gear 1014, and a third-stage gear 1013 that mesh sequentially. The winding motor is mounted on the front support plate 1011 to drive the first-stage gear 1015 of the gear set to rotate, thereby sequentially driving the second-stage gear 1014 and the third-stage gear 1013. Rotation; the winding motor mounted on the first winding machine 101 is the first winding motor 103, and the winding motor mounted on the second winding machine 102 is the second winding motor 104. The first winding motor 103 is used to drive the gear set of the first winding machine 101 to rotate, and the second winding motor 104 is used to drive the gear set of the second winding machine 102 to rotate; the third-stage gear 1013 is a hollow ring gear (the tooth profile of the third-stage gear 1013 is not shown in the accompanying drawings to simplify the drawing and reduce excessive lines). The winding mandrel 1016 is set at the center of the ring of the third-stage gear 1013, and is fixedly connected to the side wall of the third-stage gear 1013 by screws and follows the ring. The gear rotates, and the winding mandrel 1016 is used to hold the ground wire 3 and wind the pre-twisted wire 4 onto the ground wire 3. At the center of the winding mandrel 1016 is a wire-passing hole, the diameter of which matches the diameter of the ground wire 3, used to clamp the ground wire 3. Several guide holes 1017 (three guide holes 1017 are shown in the figure) are evenly distributed around the wire-passing hole on the side wall of the winding mandrel 1016, guiding the pre-twisted wire 4 during winding. Above the front support plate 1011 and the rear support plate 1012, and on the circumference of the third-stage gear 1013 and the winding mandrel 1016, a V-shaped opening 1018 extending to the wire-passing hole is provided; the ground wire 3 passes through the V-shaped opening 1018. It enters and is held in the wire hole; because the V-shaped opening 1018 on the third gear 1013 causes the gear tooth profile to be incomplete, in order to maintain the continuity of gear transmission, a second gear is set and two second gears 1014 are set. The angle between the center of the first gear 1015 and the line connecting the centers of the two second gears 1014 is greater than the V-shaped opening angle of the V-shaped opening 1018; the first winding device 101 and the second winding device 102 are arranged opposite to each other on both sides of the ground wire broken wire fixing point 6. During operation, they slide from the ground wire broken wire fixing point 6 to both sides. The winding mandrel 1016 on the first winding device 101 and the second winding device 102 rotate in opposite directions.

[0076] The output shafts of the winding motors (first winding motor 103 and second winding motor 104) are positioned between the front support plate 1011 and the rear support plate 1012. A first-stage gear 1015 is connected to the output shaft of the winding motor, and two second-stage gears 1014 are rotatably connected between the front support plate 1011 and the rear support plate 1012 via their central shafts. Protruding support rings 10131 are respectively provided on the annular sidewalls on both sides of the third-stage gear 1013. On 012, limiting ring grooves adapted to support ring 10131 are respectively provided at the positions that contact the third stage gear 1013 on both sides. The support ring 10131 is placed in the corresponding limiting ring groove. The third stage gear 1013 forms a rotational engagement with the front support plate 1011 and the rear support plate 1012 through the support rings 10131 on both sides. That is, the third stage gear 1013 rotates under the drive of the second stage gear 1014. The support rings 10131 on both sides use the limiting ring grooves on both sides as rotational support and limiting, respectively.

[0077] To prevent excessive sway of the pre-twisted wire 9 during winding and contact with the longitudinal beam 105 or guide rail 107, causing motion interference, limit rings 10 are respectively provided on the first winder 101 and the second winder 102. The limit rings 10 are used for guiding and limiting the winding process of the pre-twisted wire 9. The root of the limit ring 10 of the first winder 101 is connected to the housing of the first winding motor 103, and the root of the limit ring 10 of the second winder 102 is connected to the housing of the second winding motor 104. When winding the pre-twisted wire 9, both ends of the pre-twisted wire 9 are placed in the upper ring of the limit rings 10 on both sides. An opening is provided at the top of the upper ring of the limit ring 10 so that when the lifter 108 lifts the two winders holding the ground wire 3 of the pre-twisted wire winding mechanism 1, the ground wire 3 can pass into the upper ring of the limit ring 10.

[0078] This embodiment also provides a method for repairing broken strands in overhead ground wires of high-voltage transmission lines using the above-mentioned broken strand repair device, the method comprising the following steps:

[0079] Step 1: Observe the location of the broken wire after the ground wire breaks. The walking mechanism 2 and the resetter 6 are mechanically connected through the resetter connector 4. The two ends of the resetter connector 4 are fixedly connected to the housing 203 of the walking mechanism 2 and the rear plate 6012 of the resetter 6 by screws. The walking mechanism 2 and the resetter 6 assembly are placed on the ground wire 3 with broken strands to be repaired by the drone, so that the walking mechanism 2 is at the front end of the resetter 6. The electric push rod of the wire twisting mechanism of the resetter 6 is activated to pass the broken wire through the central through hole of the clamping body 6037 of the resetter 6. Then, the walking mechanism 2 is controlled to walk to the rear end of the resetter 6 and stop at the root position of the broken strand, and the broken wire is passed into the wire passing hole of the clamping body 6037.

[0080] Step 2: Start the walking mechanism 2 and the resetter 6. While the resetter 6 moves with the walking mechanism towards the broken wire point, the twisting mechanism 603 rotates and the clamping body 6037 drives the drooping twisted wire to wind back to its original position along the ground wire, that is, the drooping broken wire is reset; the resetter 6 winds back the drooping twisted wire through its twisting mechanism 603.

[0081] Step 3: Use a drone to remove the walking mechanism 2 and resetter 6 assembly from the ground wire, turn it around and place the walking mechanism 2 and resetter 6 assembly on the other side of the broken wire of the ground wire 3 to be repaired; reset the broken wire hanging down on the other side of the broken wire in the same way; remove the walking mechanism 2 and resetter 6 assembly, and the broken wire reset is completed;

[0082] Step 4, mechanically connect the clamp 8 and the walking mechanism 2, such as... Figure 15 As shown, the two ends of the clamp connector 5 are fixedly connected to the housing 203 of the walking mechanism 2 and the base 809 of the clamp 8 by screws. The walking mechanism 2 and the clamp 8 assembly are placed on the ground wire 3 after the broken strand and wire have been reset by the drone. The walking mechanism 2 drives the clamp 8 to move on the ground wire 3 to the broken wire break point after the broken wire has been reset, so that the jaws of the clamp 8 clamp upwards and clamp on the broken wire break point. An open clamp is placed on the jaws of the clamp 8. The screw lifting motor 810 of the clamp 8 is started, so that the crossbar 807 of the clamp 8 moves upwards. The jaws of the clamp 8 continuously close, thereby pressing the opening of the clamp 12 and fixing the clamp 12 on the broken wire break point. The clamp 8 and the walking mechanism 2 assembly are removed, and the clamp installation process is completed.

[0083] Step 5: Mechanically connect the pre-twisted wire winding mechanism 1 and the traveling mechanism 2 via the winding device connector 7, such as... Figures 19-21 As shown, the pre-twisted wire 9 is pre-loaded into the guide hole 1017 of the winding mandrel 1016 of the first winder 101 and the second winder 102. The combination of the walking mechanism 2 and the pre-twisted wire winding mechanism 1 is placed on the ground wire 3 by a drone. The first winder 101 and the second winder 102 are gathered in the center of the guide rail 107. The walking mechanism 2 moves so that the first winder 101 and the second winder 102 are located on both sides of the clamp 12. The walking mechanism 2 stops moving. The lifting device 108 is activated to lift the guide rail 107. The center hole of the winding mandrel 1016 of the first winder 101 and the second winder 102 is clamped on the ground wire 3.

[0084] Step 6: Simultaneously start the winding motors of the first winding machine 101 and the second winding machine 102. The winding mandrels 1016 of the first winding machine 101 and the second winding machine 102 rotate in opposite directions. The pre-twisted wire 9 rotates with the winding mandrel 1016. The first winding machine 101 and the second winding machine 102 move simultaneously to both sides from the broken wire fixing point 11 and the clamp 12 position until all the pre-twisted wire 9 is wound on the ground wire 3. Remove the pre-twisted wire winding mechanism 1 and the traveling mechanism 2 assembly. The pre-twisted wire winding is complete.

[0085] Step 7: Ground wire breakage repair completed.

[0086] In actual use, a wireless communication module is installed on the walking mechanism 2. The wireless communication module is electrically connected to the controller and communicates wirelessly with the ground control computer. Cameras are also installed at appropriate positions on the longitudinal beam 105 of the pre-twisted wire winding mechanism 1 and on the walking mechanism 2 to observe the direction of the U-shaped opening on the winding mechanism, the position of the clamp jaws of the clamp 8, the position of the broken wire fixing point 6, and the position of the V-shaped opening 1018 on the winding mandrel 1016 of the first winder 101 and the second winder 102, so as to accurately control the working process of the walking mechanism 2, the pre-twisted wire winding mechanism 1, the clamp 8 and the resetter 6 on the ground.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for repairing broken strands, characterized in that: The device includes a walking mechanism, a resetter, a clamp, and a pre-twisted wire winding mechanism. The walking mechanism is used to move the resetter, the clamp, and the pre-twisted wire winding mechanism to a designated working position on the ground wire to be repaired. The resetter is used to rewind the drooping broken wire back onto the ground wire. The clamp is used to attach a clamp to the broken point of the reset broken wire for fixation. The pre-twisted wire winding mechanism is used to wind pre-twisted wire around the outer periphery of the clamp attached to the broken point of the broken wire on the ground wire and within a certain length on both sides. The walking mechanism includes a bracket, walking wheels, a tensioning wheel, and an electric lifting push rod; the walking wheels are mounted on the bracket, and the grooves on the rim of the walking wheels are used to hold the ground wire downwards; the tensioning wheel is mounted on the electric lifting push rod; the electric lifting push rod is fixed on the bracket and is used to push the tensioning wheel upwards so that the grooves on the rim of the tensioning wheel hold the ground wire upwards; The resetter includes a twisted wire mechanism, a gear mechanism for driving the twisted wire mechanism to rotate, and a bridge circuit for continuously supplying power to the twisted wire mechanism. The twisted wire mechanism and the gear mechanism are arranged opposite to each other, and the bridge circuit is located between the twisted wire mechanism and the gear mechanism. The wire twisting mechanism includes an electric push rod, two opposing and fixedly connected outer connecting plates, two opposing and fixedly connected inner connecting plates, and a clamping body. Both the outer and inner connecting plates are annular rings with U-shaped openings at the bottom, and lugs are provided on the outer circumference of the rings. The telescopic end of the electric push rod is hinged to the lugs of the two inner connecting plates, and the cylinder end of the electric push rod is hinged to the lugs of the two outer connecting plates. The clamping body is an annular structure composed of three sector-shaped blocks, with a central hole for clamping the ground wire. A guide post is inserted into the side wall of each sector-shaped block, extending from both side walls of the sector-shaped block. Three inner connecting plate guide grooves are provided on the annular side wall of the inner connecting plate, and three outer connecting plate guide grooves are provided on the annular side wall of the outer connecting plate. The clamping body is placed between the two inner connecting plates, and the two inner connecting plates are placed between the two outer connecting plates. The three guide posts extending from both sides of the three sector-shaped blocks of the clamping body are respectively placed in the three inner connecting plate guide grooves and the two outer connecting plate guide grooves on both sides. A wire-passing hole is also provided on the sector-shaped block of the clamping body. The broken wire of the ground wire that has fallen down is passed through the wire-passing hole of the clamping body and the ground wire is clamped in the central hole of the clamping body. As the wire twisting mechanism rotates, the fallen wire returns to its original position with the rotation of the clamping body, thereby realizing the reset of the broken wire.

2. The strand repair device as described in claim 1, characterized in that: There are two walking wheels, which are respectively installed at both ends of the bracket; there is one tensioning wheel, which is located between the two walking wheels.

3. The strand repair device as described in claim 2, characterized in that: It also includes a walking motor and a speed reducer, both of which are mounted on the bracket. The walking motor is connected to one of the walking wheels through the speed reducer to drive the walking wheel to rotate.

4. The strand repair device as described in claim 3, characterized in that: The bracket is equipped with a power supply for powering the electric lifting push rod and the walking motor.

5. The strand repair device as described in claim 1, characterized in that: It also includes a housing that covers the outside of the electric lifting push rod and is fixed to the bracket.

6. The strand repair device as described in claim 5, characterized in that: One side of the housing is provided with a C-shaped opening for use as a ground wire passage.

7. The broken strand repair device as described in claim 1, characterized in that: The bracket is also equipped with a guide rod for guiding the ground wire into the groove on the rim of the walking wheel.

8. The strand repair device as described in claim 1, characterized in that: The tensioning wheel is installed at the upper end of the telescopic rod of the electric lifting push rod, and the cylinder of the electric lifting push rod is fixed to the lower part of the bracket through a connecting plate.

9. The broken strand repair device as described in claim 1, characterized in that: The bracket includes a left bracket and a right bracket, which are fixedly connected.

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