A device for live repair of a high voltage cable insulation layer

Abstract

The application discloses a kind of live repair devices of high-voltage cable insulation layer, including clamping walking mechanism, rotating structure, repair operation mechanism, rotating power supply mechanism, power supply device;Rotating structure includes fixed frame and cylindrical internal gear, gear reduction motor is engaged with cylindrical internal gear by speed reducer gear;Clamping walking mechanism realizes to high-voltage cable and is clamped and walks;Gear reduction motor drives cylindrical internal gear and repair operation mechanism to rotate, and using adhesive tape realizes to the insulation layer of high-voltage cable and is covered repair operation;Power supply device provides power for clamping walking mechanism, rotating structure, and supplies power for repair operation mechanism by rotating power supply mechanism.The application of a kind of live repair devices of high-voltage cable insulation layer, compact structure, can be in the environment without power outage to the damaged place of high-voltage cable insulation layer and is covered repair operation, degree of automation and operation efficiency are high, reliability is good, easy to use, safe and reliable.

Description

Technical Field

[0001] This invention relates to the field of power construction equipment technology, and in particular to a live-line repair device for the insulation layer of high-voltage cables. Background Technology

[0002] The ever-expanding scale of urban construction has led to a surge in electricity consumption, significantly increasing the pressure on power supply and imposing increasingly stringent requirements on power transmission safety. Efficient and economical monitoring and maintenance of the power grid system, as well as ensuring high-quality and reliable power services to users, have become the most important tasks for the power industry. Overhead power lines are arguably the lifeline of modern society and must be kept intact.

[0003] Overhead power lines, exposed to the elements, are prone to insulation damage, aging, and wire unraveling, all of which can affect normal power transmission. Given the widespread use of cables, timely inspection and repair of damaged insulation not only extends cable lifespan and reduces grid maintenance costs, but also significantly prevents more severe disasters, improves circuit safety, and protects public property. Insulation repair typically requires power outages, which can disrupt daily life and production, causing economic losses. With the deepening of power system reforms and the improvement of the power market, equipment suitable for high-voltage transmission line fault repair has significant market demand and broad industrial prospects.

[0004] However, most current line inspection robots are used for line fault detection, not cable fault repair, and there are no robots specifically designed for repairing localized damage to cable insulation. Furthermore, current research on cable insulation repair mainly focuses on repairing water tree-aged XLPE cable insulation, with very little research on repairing localized cable insulation damage; only some experience summaries from routine work exist. In reality, due to factors such as line rewiring, localized damage to cable insulation still requires significant manual repair, which is tedious and extremely dangerous. Therefore, there is an urgent need to develop a device capable of repairing localized damage to cable insulation while it is energized. Summary of the Invention

[0005] Based on the technical problems existing in the background art, the present invention proposes a live repair device for the insulation layer of high voltage cables.

[0006] This invention proposes a live-line repair device for the insulation layer of high-voltage cables, comprising a clamping and traveling mechanism, a rotating structure, a repair operation mechanism, a rotating power supply mechanism, and a power supply device. The rotating structure includes a notched annular fixed frame and a cylindrical internal gear mounted inside the fixed frame via a guide rail device. A gear reducer motor is mounted on one side of the cylindrical internal gear and is mounted on the fixed frame. A reduction gear is mounted on the output shaft of the gear reducer motor and meshes with the inner ring teeth of the cylindrical internal gear. The clamping and traveling mechanism is located at the front end of the rotating structure and fixed to the fixed frame, enabling clamping and traveling of the high-voltage cable. The repair operation mechanism is located at the rear end of the rotating structure and fixed to the cylindrical internal gear. The gear reducer motor drives the cylindrical internal gear and the repair operation mechanism to rotate, using adhesive tape to perform a wrapping and repair operation on the insulation layer of the high-voltage cable. The power supply device provides power to the clamping and traveling mechanism and the rotating structure, and supplies power to the repair operation mechanism through the rotating power supply mechanism.

[0007] Preferably, the clamping and traveling mechanism consists of two clamping and traveling devices and a traction device disposed between the two clamping and traveling devices. The two clamping and traveling devices are symmetrically disposed on the upper and lower sides of the high-voltage cable and are hinged to the ring-shaped fixed frame through a hinged connecting rod. The traction device controls the two clamping and traveling devices to move towards each other and clamp the high-voltage cable by means of a traction clamping servo motor.

[0008] Preferably, the clamping and traveling device includes a clamping and traveling frame and clamping wheels and traveling wheels mounted on the clamping and traveling frame. The traveling wheels are controlled to rotate by a planetary geared motor. The two ends of the hinged connecting rod are respectively hinged to the clamping and traveling frame and the fixed frame. The traction device includes a servo motor output rotating component and two traction rods. One end of each traction rod is movably fixed to both ends of the servo motor output rotating component by a pin. The other end of each traction rod is movably fixed to the two clamping and traveling frames by a pin. The traction clamping servo motor is fixed to the fixed frame by a servo motor fixing plate. The servo motor output rotating component is fixed to the output shaft of the traction clamping servo motor.

[0009] Preferably, a travel drive gear is mounted on the output shaft of the planetary geared motor, and a travel driven gear is mounted on one end of the travel wheel. The travel drive gear and the travel driven gear mesh with each other. A travel wheel support column is provided on the axis of the travel wheel and is fixed to the travel motor mounting housing and the clamping travel frame through the travel wheel support column. The planetary geared motor is fixed to the travel motor mounting housing through a geared motor bracket, and the travel motor mounting housing is fixed to the clamping travel frame through a travel wheel mounting plate.

[0010] Preferably, there are three or more guide rail devices evenly distributed on the inner wall of the fixed frame; the guide rail device includes a guide wheel mounting plate, a guide wheel fixing frame, and a driven guide wheel. The guide wheel mounting plate is fixed on the inner wall of the fixed frame. There are two guide wheel fixing frames and two driven guide wheels. The two guide wheel fixing frames are symmetrically installed in a figure-eight shape on the inner side of the guide wheel mounting plate. The two driven guide wheels are respectively installed in the two guide wheel fixing frames and engage with the internal gear of the cylinder.

[0011] Preferably, a gear motor connecting bracket is provided on the fixed frame at the front end of the cylindrical internal gear. The gear reduction motor is fixed on the gear motor connecting bracket via a gear motor mounting plate. The reduction gear is mounted on the gear mounting plate, and the gear mounting plate is fixed to the gear motor connecting bracket. The output shaft of the gear reduction motor is connected to the gear connecting shaft of the reduction gear via a flexible coupling. An opening is provided on the outer circumference of the cylindrical internal gear, and the axis of the cylindrical internal gear is located in the opening.

[0012] Preferably, the repair mechanism includes a repair connector, a tape machine frame, and tape rollers, a lower roller, and an upper roller disposed within the tape machine frame. One end of the repair connector is fixed to the end face of an internal cylindrical gear, and the other end is equipped with a rotary operating servo. The tape machine frame is mounted on the output shaft of the rotary operating servo. The tape mounted on the tape rollers can be pulled out between the upper and lower rollers to repair the insulation layer of the high-voltage cable.

[0013] Preferably, a lifting drive is provided above the upper roller, and the lifting drive is fixed to the conveyor frame by a drive mounting bracket; a blade connector is fixed to the output end of the lifting drive, a cutting blade is installed on the blade connector on the front side of the upper roller, and a vertical straight rack is provided on the blade connector and meshes with the roller gear provided on the end face of the upper roller; a pressing roller is provided on the front side of the cutting blade, and the pressing roller is fixed to the conveyor frame by a roller connector.

[0014] Preferably, the rotary power supply mechanism is located at the rear end of the rotary structure and includes a collector ring, carbon brushes, and carbon brush connectors. The collector ring is a semi-enclosed arc plate structure and is fixed to the fixed frame by a fixing rod. The collector ring is collinear with the shaft of the internal gear in the cylinder. Multiple carbon brushes are arranged in parallel above the collector ring and fixed to the repair connector by the carbon brush connectors. The carbon brushes are in sliding contact with the collector ring. Each carbon brush consists of two carbon brush components. During the relative rotation of the carbon brush and the collector ring, at least one of the two carbon brush components, which are distributed at a certain angle, is in contact with the collector ring. The power supply device connects to the collector ring through a branch wire and then supplies power to the rotary operation servo and lifting drive components through the carbon brushes.

[0015] Preferably, it also includes a guide plate, a lower housing, and an upper housing. The lower housing and the upper housing are disposed on the outside of the clamping and traveling mechanism and the rotating structure and are both fixed on the fixed frame of the rotating structure. One side of the lower housing is fixed to one side of the upper housing by bolts, and the guide plate is fixed to the other side of the upper housing by bolts. A gap of a certain width is formed between the guide plate and the other side of the lower housing, and the gap communicates with the notch of the fixed frame. The high-voltage cable can be inserted into the shaft of the clamping and traveling mechanism, the rotating structure, and the rotating power supply mechanism through the gap between the guide plate and the lower housing.

[0016] The beneficial effects of this invention are as follows:

[0017] The present invention discloses a live-line repair device for high-voltage cable insulation. It has a compact structure and can repair the damaged parts of the high-voltage cable insulation by using an insulating tape in an environment without power interruption. It has a high degree of automation and work efficiency, good reliability, is easy to use, and is safe and reliable, which greatly reduces the labor intensity and safety risks of live-line work. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the device of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the device of the present invention;

[0020] Figure 3 This is a schematic diagram of the clamping and walking mechanism of the device of the present invention;

[0021] Figure 4 This is a schematic diagram of the connection structure between the walking wheel and the planetary gear motor of the device of the present invention;

[0022] Figure 5 This is a schematic diagram of the rotating structure of the device of the present invention;

[0023] Figure 6 This is a schematic diagram of the working structure of the repair mechanism and the rotary power supply mechanism of the device of the present invention.

[0024] Figure 7 This is a schematic diagram of the repair mechanism of the device of the present invention;

[0025] Figure 8 This is a schematic diagram of the rotating power supply mechanism of the device of the present invention. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example:

[0028] Reference Figure 1-8 This invention proposes a live-line repair device for the insulation layer of a high-voltage cable, comprising a clamping and traveling mechanism 3, a rotating structure 4, a repair operation mechanism 5, a rotating power supply mechanism 6, and a power supply device 7. The clamping and traveling mechanism 3 is located at the front end of the rotating structure 4 to clamp and travel the high-voltage cable 1; the repair operation mechanism 5 is located at the rear end of the rotating structure 4 and can use tape to perform wrapping and repair operations on the insulation layer of the high-voltage cable 1; the power supply device 7 provides power to the clamping and traveling mechanism 3 and the rotating structure 4, and supplies power to the repair operation mechanism 5 through the rotating power supply mechanism 6.

[0029] The live-line repair device for high-voltage cable insulation of the present invention further includes a guide plate 2, a lower housing 8, and an upper housing 9. The lower housing 8 and the upper housing 9 are disposed on the outside of the clamping and walking mechanism 3 and the rotating structure 4 and are both fixed on the rotating structure 4. One side of the lower housing 8 and one side of the upper housing 9 are fixed by bolts. The guide plate 2 is fixed to the other side of the upper housing 9 by bolts. A gap of a certain width is formed between the guide plate 2 and the other side of the lower housing 8. The high-voltage cable 1 can be inserted into the axis of the clamping and walking mechanism 3, the rotating structure 4, and the rotating power supply mechanism 6 through the gap between the guide plate 2 and the lower housing 8.

[0030] The rotating structure 4 includes a notched annular fixed frame 402 and a cylindrical internal gear 401 mounted inside the fixed frame 402 via guide rail devices. Three or more guide rail devices are provided and evenly distributed on the inner wall of the fixed frame 402. Each guide rail device includes a guide wheel mounting plate 408, a guide wheel fixing frame 409, and a driven guide wheel 410. The guide wheel mounting plate 408 is fixed to the inner wall of the fixed frame 402. Two guide wheel fixing frames 409 and two driven guide wheels 410 are provided. The two guide wheel fixing frames 409 are symmetrically mounted in a V-shape inside the guide wheel mounting plate 408. The two driven guide wheels 410 are respectively mounted inside the two guide wheel fixing frames 409 and engage with the cylindrical internal gear 401. Therefore, the fixed frame 402 and the cylindrical internal gear 401 can achieve relative rotational motion.

[0031] The cylindrical internal gear 401 has a gear motor connecting bracket 404 mounted on a fixed frame 402 at its front end. A gear reduction motor 403 is mounted on one side of the cylindrical internal gear 401 and fixed to the gear motor connecting bracket 404 via a gear motor mounting plate 405. A reduction gear is mounted on a gear mounting plate 411, which is fixed to the gear motor connecting bracket 404. The output shaft of the gear reduction motor 403 is connected to the gear connecting shaft 407 of the reduction gear via a flexible coupling 406. The reduction gear meshes with the inner ring teeth of the cylindrical internal gear 401. An opening 412 is provided on the outer circumference of the cylindrical internal gear 401, and the axis of the cylindrical internal gear 401 is located in the opening 412. The high-voltage cable 1 can be inserted into the opening 412 on the outer circumference of the cylindrical internal gear 401 through the notch in the fixed frame 402 and finally placed at the axis of the cylindrical internal gear 401.

[0032] The clamping and traveling mechanism 3 consists of two clamping and traveling devices and a traction device set between the two clamping and traveling devices. The two clamping and traveling devices are symmetrically arranged on the upper and lower sides of the high-voltage cable 1 and are hinged to the ring-shaped fixed frame 402 through the hinged connecting rod 315. The traction device can control the two clamping and traveling devices to move towards each other or away from each other and to clamp or release the high-voltage cable 1 through the traction clamping servo motor 313.

[0033] The clamping and traveling device includes a clamping and traveling frame 303 and clamping wheels 305 and traveling wheels 304 mounted on the clamping and traveling frame 303. The traveling wheels 304 are controlled to rotate by a planetary gear motor 306. A traveling drive gear 309 is mounted on the output shaft of the planetary gear motor 306, and a traveling driven gear 310 is mounted on one end of the traveling wheels 304. The traveling drive gear 309 meshes with the traveling driven gear 310. A traveling wheel support column 311 is provided on the shaft of the traveling wheels 304 and is fixed to the traveling motor mounting housing 307 and the clamping and traveling frame 303 through the traveling wheel support column 311. The planetary gear motor 306 is fixed to the traveling motor mounting housing 307 through a gear motor bracket 308, and the traveling motor mounting housing 307 is fixed to the clamping and traveling frame 303 through a traveling wheel mounting plate 312. The two ends of the hinged connecting rod 315 are respectively hinged to the clamping and traveling frame 303 and the fixed frame 402. The traction device includes a servo motor output rotating component 301 and two traction rods 302. One end of each traction rod 302 is movably fixed to both ends of the servo motor output rotating component 301 via pins, and the other end of each traction rod 302 is movably fixed to two clamping travel frames 303 via pins. The traction clamping servo motor 313 is fixed to the fixed frame 402 via a servo motor fixing plate 314, and the servo motor output rotating component 301 is fixed to the output shaft of the traction clamping servo motor 313. The traction clamping servo motor 313 controls the servo motor output rotating component 301 to rotate and uses the two traction rods 302 to pull the two clamping travel devices respectively, so that the two symmetrical clamping wheels 305 and two travel wheels 304 in the two clamping travel devices move towards each other and clamp the high-voltage cable 1 between them. Then, the planetary geared motor 306 controls the two travel wheels 304 to rotate through gear meshing to achieve relative movement of the high-voltage cable 1.

[0034] The repair mechanism 5 is located at the rear end of the rotating structure 4 and is fixed to the cylindrical internal gear 401. The gear reduction motor 403 drives the cylindrical internal gear 401 and the repair mechanism 5 to rotate, and uses tape to cover and repair the insulation layer of the high-voltage cable 1.

[0035] The repair mechanism 5 includes a repair connector 501, a tape machine frame 505, and tape rollers 506, lower rollers 507, and upper rollers 508 installed in the tape machine frame 505. One end of the repair connector 501 is fixed to the end face of the cylindrical internal gear 401, and the other end is equipped with a rotary operation servo motor 502. The tape machine frame 505 is installed on the output shaft of the rotary operation servo motor 502. The tape installed on the tape roller 506 can be pulled out between the upper roller 508 and the lower roller 507 to repair the insulation layer of the high-voltage cable 1.

[0036] The upper roller 508 is provided with a lifting drive 509, which is fixed to the conveyor frame 505 by a drive mounting bracket 510. The output end of the lifting drive 509 is fixed with a blade connector 511. A cutting blade 512 is installed on the blade connector 511 on the front side of the upper roller 508. A vertical straight rack 513 is provided on the blade connector 511 and meshes with the roller gear 514 provided on the end face of the upper roller 508. A pressing roller 504 is provided on the front side of the cutting blade 512 and is fixed to the conveyor frame 505 by a roller connector 503.

[0037] In practical application, firstly, the tape head mounted on the tape roller 506 is manually pulled out from between the lower rotating roller 507 and the upper rotating roller 508 and pressed tightly against the pressure roller 504. Once the high-voltage cable 1 is inserted into the device and clamped and moved by the clamping and traveling mechanism 3, causing the device to move to the position of the insulation layer to be repaired on the high-voltage cable 1, the rotary operation servo motor 502 controls the tape frame 505 to rotate as a whole, causing the adhesive surface of the tape head to adhere to the insulation layer of the high-voltage cable 1. Simultaneously, the pressure roller 504 acts on the tape and presses it tightly against the insulation layer of the high-voltage cable 1. Next, the clamping and traveling mechanism 3 continues to move, and the rotating structure 4 drives the repair operation mechanism 5 to rotate as a whole, causing the tape to rotate and advance layer by layer to wrap around the position of the insulation layer to be repaired on the high-voltage cable 1. After the tape is wrapped and covered... The lifting drive 509 controls the blade connector 511 to move downwards gradually, while the meshing upper roller 508 gradually rotates in the opposite direction to tighten the tape to a certain extent until the cutting blade 512 installed on the blade connector 511 cuts the tape. Then, the rotating structure 4 drives the repair operation mechanism 5 to continue rotating, so that the pressing roller 504 completely sticks the end of the wrapped tape to the insulation layer of the high-voltage cable 1. Finally, the rotating operation servo motor 502 controls the tape machine frame 505 to rotate as a whole, so that the pressing roller 504 moves away from the high-voltage cable 1. At the same time, the lifting drive 509 controls the blade connector 511 to move upwards gradually, the cutting blade 512 is lifted, and the meshing upper roller 508 gradually rotates in the forward direction, driving the tape to extend forward a bit for the next repair operation of the insulation layer of the high-voltage cable 1. In the structural configuration of the repair mechanism 5 of the present invention, the extended tape is at a 55° angle to the high-voltage cable 1; at the same time, the axis of the pressing roller 504 is parallel to the high-voltage cable 1. This is more conducive to the pressing of the tape and will not cause wrinkles. Moreover, the pressing roller 504 can ensure the quality of tape wrapping repair through the rolling action.

[0038] The rotary power supply mechanism 6 is located at the rear end of the rotary structure 4 and includes a collector ring 601, carbon brushes 602, and carbon brush connectors 603. The collector ring 601 is a semi-enclosed arc plate structure and is fixed to the fixed frame 402 by a fixing rod. The collector ring 601 is collinear with the axis of the cylindrical internal gear 401. Multiple carbon brushes 602 are arranged in parallel above the collector ring 601 and are fixed to the repair connector 501 by the carbon brush connectors 603. The carbon brushes 602 and the collector ring 601 are in sliding contact. The carbon brushes 602 are composed of two carbon brush components. During the relative rotation of the carbon brushes 602 and the collector ring 601, at least one of the two carbon brush components that are distributed at a certain angle is in contact with the collector ring 601. The power supply device 7 connects to the collector ring 601 through a branch wire and then supplies power to the rotary operation servo motor 502 and the lifting drive component 509 through the carbon brushes 602.

[0039] The present invention provides a live-line repair device for high-voltage cable insulation, the specific operation process of which is as follows:

[0040] Step 1: Arrive at the ground work location where the insulation layer of high-voltage cable 1 needs repair, selecting the end closest to the utility pole to facilitate the placement of the device of this invention onto high-voltage cable 1. First, prepare on the ground, such as performing communication and power checks. Install insulating tape in the appropriate positions on the device of this invention, adjust its position, and use the traction clamping servo motor 313 to control the servo motor output rotating component 301 to rotate, causing the two clamping wheels 305 and two traveling wheels 304 in the two clamping and traveling devices to open to their maximum extent, facilitating the entry of high-voltage cable 1 into the interior of the device of this invention.

[0041] Step 2: Using insulating rods, the device of the present invention is placed onto the high-voltage cable 1. One insulating rod serves as a guide, and the other applies thrust, suspending the device of the present invention on the overhead high-voltage cable 1 through the gap between the guide plate 2 and the lower housing 8. The traction clamping servo motor 313 is remotely activated by ground personnel, causing the two clamping wheels 305 and the two traveling wheels 304 to move towards each other and clamp the high-voltage cable 1 between them. The axis of the device of the present invention coincides with the axis of the high-voltage cable 1. At this time, the device of the present invention is in the starting state of travel. The insulating rods are then removed.

[0042] Step 3: The remote-controlled planetary geared motor 306 operates, causing the device to travel along the high-voltage cable 1 to the damaged area of ​​the cable insulation. The repair mechanism 5 then performs the tape wrapping operation. The rotating servo motor 502 rotates, and the pressing roller 504 presses the tape firmly onto the insulation layer of the high-voltage cable 1. The rotating structure 4 begins operation until the tape wrapping operation of the damaged area of ​​the high-voltage cable 1 is completed. After the wrapping operation is completed, the lifting drive component 509 moves, and the cutting blade 512 cuts the tape downwards. After the cutting action is completed, the cutting blade 512 moves upwards and extends a section of tape.

[0043] Step 4: The device of this invention is remotely controlled by ground personnel to move to the next location where the insulation layer needs to be repaired, and continues to wrap and cover the damaged insulation layer of the high-voltage cable 1 until the insulation repair work on this high-voltage cable 1 is completed, and then returns to the end near the pole.

[0044] Step 5: Use remote control to control the two clamping wheels 305 and the two traveling wheels 304 to open using the traction clamping servo motor 313, and then use an insulating rod to remove the entire device of the present invention.

[0045] The present invention discloses a live-line repair device for high-voltage cable insulation. It has a compact structure and can repair the damaged parts of the high-voltage cable insulation by using an insulating tape in an environment without power interruption. It has a high degree of automation and work efficiency, good reliability, is easy to use, and is safe and reliable, which greatly reduces the labor intensity and safety risks of live-line work.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A live-line repair device for the insulation layer of a high-voltage cable, characterized in that, The system includes a clamping and traveling mechanism (3), a rotating structure (4), a repair operation mechanism (5), a rotating power supply mechanism (6), and a power supply device (7). The rotating structure (4) includes a notched annular fixed frame (402) and a cylindrical internal gear (401) installed inside the fixed frame (402) via a guide rail device. A gear reduction motor (403) is provided on one side of the cylindrical internal gear (401) and installed on the fixed frame (402). A reduction gear is installed on the output shaft of the gear reduction motor (403) and meshes with the inner ring teeth of the cylindrical internal gear (401). The clamping and traveling mechanism (3) is provided with... At the front end of the rotating structure (4), and fixed to the fixed frame (402), the high-voltage cable (1) is clamped and moved; the repair operation mechanism (5) is set at the rear end of the rotating structure (4) and fixed to the cylindrical internal gear (401). The gear reduction motor (403) drives the cylindrical internal gear (401) and the repair operation mechanism (5) to rotate, and uses tape to cover and repair the insulation layer of the high-voltage cable (1); the power supply device (7) provides power to the clamping and moving mechanism (3) and the rotating structure (4), and supplies power to the repair operation mechanism (5) through the rotating power supply mechanism (6); The clamping and walking mechanism (3) consists of two clamping and walking devices and a traction device set between the two clamping and walking devices. The two clamping and walking devices are symmetrically arranged on the upper and lower sides of the high voltage cable (1) and are hinged to the ring-shaped fixed frame (402) by the hinged connecting rod (315). The traction device controls the two clamping and walking devices to move towards each other and clamp the high voltage cable (1) by the traction clamping servo motor (313). The clamping and traveling device includes a clamping and traveling frame (303) and clamping wheels (305) and traveling wheels (304) mounted on the clamping and traveling frame (303). The traveling wheels (304) are controlled to rotate by a planetary geared motor (306). The two ends of the hinged connecting rod (315) are respectively hinged to the clamping and traveling frame (303) and the fixed frame (402). The traction device includes a servo motor output rotating component (301) and two traction rods (315). 02), one end of each of the two traction rods (302) is movably fixed to both ends of the servo output rotating part (301) by a pin, and the other end of each of the two traction rods (302) is movably fixed to the two clamping walking frames (303) by a pin, the traction clamping servo (313) is fixed to the fixed frame (402) by the servo fixing plate (314), and the servo output rotating part (301) is fixed to the output shaft of the traction clamping servo (313); The planetary geared motor (306) has a walking drive gear (309) mounted on its output shaft, and a walking driven gear (310) is mounted on one end of the walking wheel (304). The walking drive gear (309) meshes with the walking driven gear (310). A walking wheel support column (311) is provided on the shaft of the walking wheel (304), and the walking wheel support column (311) is fixed to the walking motor mounting shell (307) and the clamping walking frame (303). The planetary geared motor (306) is fixed to the walking motor mounting shell (307) by the geared motor bracket (308), and the walking motor mounting shell (307) is fixed to the clamping walking frame (303) by the walking wheel mounting plate (312). The guide rail device is provided in three or more parts and is evenly distributed on the inner wall of the fixed frame (402); the guide rail device includes a guide wheel mounting plate (408), a guide wheel fixing frame (409), and a driven guide wheel (410). The guide wheel mounting plate (408) is fixed on the inner wall of the fixed frame (402). There are two guide wheel fixing frames (409) and two driven guide wheels (410). The two guide wheel fixing frames (409) are symmetrically installed in a figure-eight shape on the inner side of the guide wheel mounting plate (408). The two driven guide wheels (410) are respectively installed in the two guide wheel fixing frames (409) and engage with the cylindrical internal gear (401). A gear motor connecting bracket (404) is provided on the fixed frame (402) at the front end of the cylindrical internal gear (401). The gear reduction motor (403) is fixed on the gear motor connecting bracket (404) through a gear motor mounting plate (405). The reduction gear is mounted on a gear mounting plate (411). The gear mounting plate (411) is fixed to the gear motor connecting bracket (404). The output shaft of the gear reduction motor (403) is connected to the gear connecting shaft (407) of the reduction gear through a flexible coupling (406). An opening (412) is provided on the outer periphery of the cylindrical internal gear (401), and the axis of the cylindrical internal gear (401) is located in the opening (412). The repair mechanism (5) includes a repair connector (501), a tape machine frame (505), and tape rollers (506), lower rollers (507), and upper rollers (508) arranged in the tape machine frame (505). One end of the repair connector (501) is fixed to the end face of the cylindrical internal gear (401), and the other end is equipped with a rotary operation servo motor (502). The tape machine frame (505) is installed on the output shaft of the rotary operation servo motor (502). The tape installed on the tape roller (506) can be pulled out between the upper roller (508) and the lower roller (507) to repair the insulation layer of the high-voltage cable (1). A lifting drive component (509) is provided above the upper rotating roller (508), and the lifting drive component (509) is fixed on the conveyor frame (505) by a drive component mounting bracket (510); a blade connector (511) is fixed at the output end of the lifting drive component (509), a cutting blade (512) is installed on the blade connector (511) on the front side of the upper rotating roller (508), a vertical straight rack (513) is provided on the blade connector (511) and meshes with the roller gear (514) provided on the end face of the upper rotating roller (508); a pressing roller (504) is provided on the front side of the cutting blade (512), and the pressing roller (504) is fixed on the conveyor frame (505) by a roller connector (503).

2. The live-line repair device for high-voltage cable insulation layer according to claim 1, characterized in that, The rotary power supply mechanism (6) is located at the rear end of the rotary structure (4) and includes a collector ring (601), carbon brushes (602), and carbon brush connectors (603). The collector ring (601) is a semi-enclosed arc plate structure and is fixed to the fixed frame (402) by a fixing rod. The collector ring (601) is collinear with the axis of the cylindrical internal gear (401). The carbon brushes (602) are arranged in multiple parallel rows above the collector ring (601) and are fixed to the repair connector by the carbon brush connectors (603). (501) On; the carbon brush (602) is slidably connected to the collector ring (601). The carbon brush (602) is composed of two carbon brush components. During the relative rotation of the carbon brush (602) and the collector ring (601), at least one of the two carbon brush components distributed at a certain angle is in contact with the collector ring (601). The power supply device (7) connects to the collector ring (601) through the branch wire, and then supplies power to the rotating operation servo (502) and the lifting drive component (509) through the carbon brush (602).

3. The live-line repair device for high-voltage cable insulation layer according to claim 1, characterized in that, It also includes a guide plate (2), a lower housing (8), and an upper housing (9). The lower housing (8) and the upper housing (9) are located on the outside of the clamping walking mechanism (3) and the rotating structure (4) and are both fixed on the fixed frame (402) of the rotating structure (4). One side of the lower housing (8) is fixed to one side of the upper housing (9) by bolts. The guide plate (2) is fixed to the other side of the upper housing (9) by bolts. A gap of a certain width is formed between the guide plate (2) and the other side of the lower housing (8). The gap is connected to the notch of the fixed frame (402). The high-voltage cable (1) can be inserted into the axis of the clamping walking mechanism (3), the rotating structure (4), and the rotating power supply mechanism (6) through the gap between the guide plate (2) and the lower housing (8).

Images