An electrically chargeable installation of a power transmission line subconductor anti-sticking spacer clamp and method

Abstract

This invention relates to a live-installable anti-adhesion isolation clamp and method for transmission line sub-conductors, belonging to the field of transmission line operation and maintenance technology. The technical solution is as follows: a lightweight heavy-duty drone (22) lifts the isolation clamp (24) and flies it above the double-split sub-conductors, with the two split sub-conductors (21) entering the upper and lower clamps of the isolation clamp respectively; after monitoring the split sub-conductors entering the upper or lower trench, the drone locks the split sub-conductors within the upper and lower trenches; the installation device separates from the isolation clamp, and the installation device is brought back by the lightweight heavy-duty drone for reuse. This invention uses a drone as a carrier, combined with the anti-adhesion isolation clamp and installation device, eliminating the need for contact with the conductors and high-altitude operations, resulting in high safety, fewer personnel, and low operating costs; it can eliminate the defects of adhesion and whipping of split sub-conductors in transmission lines, avoiding the resulting equipment damage and greatly improving the safety level of transmission line operation.

Description

Technical Field

[0001] This invention relates to a live-line anti-adhesion isolation clamp and method for transmission line conductors, belonging to the field of transmission line operation and maintenance technology. Background Technology

[0002] Conductor sticking and whipping phenomena: Whipping refers to the phenomenon where, under the combined influence of factors such as current, temperature, wind speed, and sunlight, the electromagnetic force exerted by the upper conductor on the lower conductor exceeds or equals the weight of the lower conductor, causing the two conductors to "stick" together. This repeated sticking, separating, and re-sticking and separating between the upper and lower conductors produces a loud frictional sound, like the sound of a whip being cracked. Whipping can lead to conductor strand breakage, irregular elongation, and a decrease in current-carrying capacity and mechanical stress. If not addressed promptly, it can pose a risk of line breakage. Once whipping occurs on a transmission line, line maintenance personnel must immediately rush to the site for inspection and repair to promptly eliminate potential hazards.

[0003] In 220kV power supply systems, conductors are mostly arranged vertically in a double-split configuration, i.e., double-split sub-conductors. Each phase conductor in the transmission line consists of two conductors of a certain cross-section, arranged vertically, with a distance of 30-50 cm between the two conductors. This increases the single-phase transmission cross-section of the transmission line, reducing corona discharge and improving the power transmission capacity. 220kV lines are generally double-split. Due to environmental factors such as strong winds, local microclimates, and snow accumulation, coupled with internal factors such as increased load from concentrated renewable energy transmission, transmission lines in high-altitude and cold regions (such as the Bashang area of ​​Chengde) are prone to sub-conductor adhesion and whipping phenomena, leading to wear, strand breakage, and even wire breakage. Manually shutting down the power supply and installing isolating clamps is an important way to solve these problems, but it presents practical challenges such as requiring power outages, long working hours, difficulty in manual line installation, and significant swaying at the work site due to gusts of wind. Even slight swaying during long-span phase-to-phase work can result in insufficient safety distance, directly endangering the personal safety of workers.

[0004] The existing Chinese patent, "A Tool for Preventing the Adhesion of Phase-Splitting Conductors in Electric Power," application number CN202121241364.0, application date: June 4, 2021, describes the following technical solution: External connecting plates are provided on both the left and right sides of the connecting fitting; an adjustment hole is provided at the bottom of the connecting fitting; connecting shaft one and connecting shaft two are movably connected to the top and middle of the connecting fitting, respectively; fixing nuts one are engaged on both the left and right sides of connecting shaft one and connecting shaft two; a plug-in shaft is movably connected to the top of the external connecting plate and the inner cavity of the adjustment hole; fixing nuts two are engaged at both ends of the plug-in shaft; a hanging plate is movably connected to the middle of the plug-in shaft; a wire clamp is fixedly installed at the bottom of the hanging plate; connecting buckles are provided at both the front and rear ends of the wire clamp; a base plate is movably connected to the bottom of the connecting buckle; and a fixing nut three is engaged at the bottom of the connecting buckle. In use, wrap the wire clamp at the top of the outer connecting plate around the surface of the upper split conductor, and wrap the wire clamp at the bottom of the connecting hardware around the surface of the lower split conductor. Then, use two connecting buckles to fasten the two wire clamps on the left and right sides respectively. Pass the base plate through the bottom end of the connecting buckle, and then tighten the fixing nut three to fix the two split conductors. During installation, insert the hanging plate into the middle of the plug shaft to fix the two wire clamps at the top of the outer connecting plate and the bottom of the connecting hardware respectively. Then, tighten the fixing nut two to fix the plug shaft to the connecting hardware and the outer connecting plate. When it is necessary to adjust the distance between the two split conductors, simply unscrew the fixing nut two at the bottom of the connecting hardware, then pull the plug shaft out of the adjustment hole, and then insert the plug shaft downward into the corresponding adjustment hole. This allows the distance between the wire clamps at the bottom of the connecting hardware to be adjusted, that is, the position of the lower split conductor is adjusted downward. However, the aforementioned existing technologies are based on manual installation, which is costly, involves a lot of work at heights, and poses significant safety risks. In practice, methods such as adding spacers to the sub-conductors and increasing the spacing between the sub-conductors and suspension clamps are mostly employed. While the design of a double-split conductor should ensure that the sag of the two sub-conductors is the same, both environmental factors and construction errors can lead to a significant difference in sag between the two sub-conductors. If the upper sub-conductor is laid less than designed, it may forcibly pull the lower sub-conductor through the spacers, severely increasing conductor wear and causing spacer displacement due to conductor wear. In severe cases, this can even lead to broken strands in the sub-conductor's aluminum wire. Conversely, if the lower sub-conductor is laid more than designed, the upper sub-conductor may bear the additional weight of the other sub-conductor due to the spacers, again resulting in accelerated conductor wear, near-breaking force, and strand breakage. Therefore, using spacers leads to poor stability, a large workload, and numerous heavy tools. Furthermore, it necessitates power outages for installation, reducing power supply reliability. Summary of the Invention

[0005] The purpose of this invention is to provide a live-installable anti-adhesion isolation clamp and method for transmission line sub-conductors. Using a drone as a carrier, and in conjunction with the anti-adhesion isolation clamp and installation device, the drone allows for live-installation of the anti-adhesion isolation clamp for double-split sub-conductors. This eliminates the need for contact with the conductors, high-altitude operations, high safety, requires fewer personnel, and has low operating costs. It can eliminate the defects of adhesion and whipping of split sub-conductors in transmission lines, avoid the resulting equipment damage, improve the safety level of transmission line operation, and solve the aforementioned technical problems existing in existing technologies.

[0006] The technical solution of this invention is:

[0007] A live-installable anti-adhesion isolation clamp for transmission line conductors includes an isolation clamp and an installation device. The isolation clamp comprises a lead screw, a drive device, an upper sliding plate, and a lower sliding plate. The drive device is connected to the top of the lead screw. The lead screw has an upper sliding plate and a lower sliding plate. The ends of the upper and lower sliding plates are equipped with identical upper and lower clamps, each consisting of a matching lower hook and an upper hook. The upper and lower sliding plates are respectively connected to the upper and lower hooks of the upper and lower clamps. The hook connection is as follows: the upper hook and the lower hook are respectively provided with upper grooves and lower grooves, which match each other to clamp the split sub-wires; the installation device includes a drive motor, the output shaft of which is connected to a hexagonal prism drive shaft; the drive device is provided with a drive shaft insertion hole, after the hexagonal prism drive shaft is inserted into the drive shaft insertion hole, the drive motor transmits power to the drive device, the drive device drives the lead screw to rotate and drives the upper sliding plate and the lower sliding plate of the lead screw to move simultaneously along the lead screw, thereby driving the upper hook and the lower hook of the upper and lower wire clamps to cooperate with each other to clamp the split sub-wires;

[0008] The installation device is equipped with a lifting ring and a locking pin. The isolation clamp is equipped with a connecting ring and a locking pin insertion hole. The locking pin is inserted into the locking pin insertion hole to position and connect the isolation clamp to the installation device. The connecting ring is connected to a lightweight heavy-duty UAV via a main suspension rope. An automatic disengagement mechanism (existing technology) exists between the main suspension rope and the connecting ring. The lifting ring is connected to the lightweight heavy-duty UAV via an auxiliary suspension. The installation device is equipped with a remote control module for receiving remote control signals and issuing control commands to control the drive motor to drive the drive device to rotate the lead screw, so that the upper hook and lower hook cooperate to clamp the split conductor. After the isolation clamp is installed, the locking pin is opened remotely, the main suspension rope and the connecting ring automatically disengage, the installation device is separated from the isolation clamp, and the installation device is taken back by the lightweight heavy-duty UAV. It can be reused, reducing the cost of use.

[0009] A spacing adjustment mechanism is provided between the upper and lower clamps. This mechanism includes an upper spacing adjustment plate, a fastening bolt, and a lower spacing adjustment plate. Both the upper and lower spacing adjustment plates have slotted holes and are connected by the fastening bolt. These slotted holes are used to adjust the spacing between the upper and lower clamps. The upper end of the upper spacing adjustment plate is connected to the lower hook of the upper clamp, and the lower end of the lower spacing adjustment plate is connected to the lower hook of the lower clamp. The function of the spacing adjustment mechanism is to adjust the distance between the upper and lower clamps according to the distance between the two split conductors, making it match the distance between the two split conductors, thus improving the versatility of the isolation clamp of this invention.

[0010] The drive device includes a reverse ratchet, a driven gear, a ratchet locking mechanism, and a drive gear. The drive gear has a drive shaft insertion hole on its drive shaft. The drive gear meshes with the driven gear, and the driven gear is connected to the top of the lead screw. The drive gear has a reverse ratchet on its drive shaft, and the reverse ratchet is connected to the ratchet locking mechanism.

[0011] The drive gear and the reverse ratchet are connected to the same power shaft, and the upper part of the power shaft adopts an inward hexagonal design to form a drive shaft insertion hole, which allows for the insertion of the hexagonal prism drive shaft to the outside, providing power to the entire drive device. The reverse ratchet is used to limit the drive gear to move in only one direction, and the ratchet locking mechanism is used to restrict the reverse ratchet from rotating in the opposite direction, thereby achieving the anti-loosening function of the isolation clamp.

[0012] The isolation line is equipped with a slide rail, with the lower hook fixed on the slide rail and the upper hook sliding along the slide rail.

[0013] The slide rail is an open groove, and the upper hook is equipped with a slider that slides within the groove.

[0014] The upper and lower grooves are inlaid with buffer rubber pads to protect the split sub-wires from cuts when locking them.

[0015] The locking pin insertion hole and the number of locking pins are both two, to prevent the isolation clamp and the mounting device from twisting under the action of the drive motor.

[0016] A method for installing a live transmission line conductor anti-adhesion isolation clamp includes the following steps:

[0017] The spacing adjustment mechanism is adjusted to match the distance between the two split conductors. The hexagonal prism drive shaft is inserted into the drive shaft insertion hole, and the locking pin is inserted into the locking pin insertion hole, connecting the installation device and the isolation clamp as one unit. The connecting ring is connected to the light-duty drone via the main suspension rope, and the connecting ring is connected to the light-duty drone via the auxiliary suspension rope. The light-duty drone lifts the isolation clamp and flies it above the two split conductors. Then, the light-duty drone descends and adjusts left and right until the two split conductors are exactly in the upper and lower clamps of the isolation clamp, respectively. After the monitoring machine checks whether the split conductors have entered the upper or lower trench, the ground personnel remotely control the drive motor to start, locking the split conductors in the upper and lower trenches. Then, the locking pin is opened remotely, the main suspension rope automatically disengages from the connecting ring, the installation device separates from the isolation clamp, and the installation device is taken back by the light-duty drone for reuse, reducing operating costs.

[0018] The aforementioned lightweight heavy-duty drone is a type of drone capable of lifting heavy objects, such as the DJI M300 / M350, which can carry a certain weight of cargo.

[0019] The live installation of the isolation clamp described in this invention refers to installing the isolation clamp without interrupting power.

[0020] Isolation clamp: This is the innovation of the present invention. In the present invention, it plays a supporting role between the split sub-conductors. It is installed between the double split sub-conductors to fix the spacing between the sub-conductors. It is a hardware that prevents the conductors from whipping each other and suppresses wind vibration and secondary gap oscillation.

[0021] This invention utilizes drones combined with an innovatively developed isolation clamp to achieve live installation of split conductor isolation clamps on 220kV voltage level lines. The advanced operation method is easy to promote, eliminates the need for contact with conductors and high-altitude work, ensuring high safety for personnel and equipment. The isolation clamps are made from simple materials, the distance between the upper and lower clamps is adjustable, the installation device is reusable, requires fewer personnel, and has low operating costs.

[0022] This invention can be remotely controlled, enabling live-line work without contact with conductors or working at heights. It eliminates defects such as conductor adhesion and whipping in transmission lines, avoiding potential equipment damage and improving the safety level of transmission line operation. It also reduces various adverse factors such as manual labor, high-risk operations, and frequent power outages during outage line work, thus improving the effectiveness and quality of live-line maintenance.

[0023] The beneficial effects of this invention are as follows: Using a drone as a carrier, in conjunction with an anti-adhesion isolation clamp and installation device, the anti-adhesion isolation clamp for double-split conductors can be installed live by the drone without contacting the conductors or performing high-altitude operations, resulting in high safety, fewer personnel, and low operating costs; it can eliminate the defects of adhesion and whipping of split conductors in transmission lines, avoid the damage to equipment caused by these defects, and greatly improve the safety level of transmission line operation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of an embodiment of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the top of an embodiment of the present invention;

[0026] Figure 3 This is a top view schematic diagram of the driving device according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the installation device according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the installation of the present invention on a power transmission line according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram illustrating the usage state of an embodiment of the present invention;

[0030] In the diagram: 1. Connecting ring; 2. Mounting device; 3. Locking pin; 4. Drive motor; 5. Hexagonal prism drive shaft; 6. Upper sliding plate of lead screw; 7. Lower hook; 8. Upper hook; 9. Buffer rubber pad; 10. Upper spacing adjustment plate; 11. Fastening bolt; 12. Lead screw; 13. Drive device; 14. Reverse ratchet; 15. Drive shaft insertion hole; 16. Driven gear; 17. Locking pin insertion hole; 18. Ratchet locking mechanism; 19. Drive gear; 20. Lifting ring; 21. Split conductor wire; 22. Lightweight heavy-duty UAV; 23. Monitoring and operation machine; 24. Isolation clamp; 25. Main suspension rope; 26. Auxiliary suspension rope; 27. Lower sliding plate of lead screw; 28. Lower spacing adjustment plate; 29. ​​Upper groove; 30. Lower groove. Detailed Implementation

[0031] The invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] A live-installable transmission line conductor anti-adhesion isolation clamp includes an isolation clamp 24 and an installation device 2. The isolation clamp 24 includes a lead screw 12, a drive device 13, an upper sliding plate 6 and a lower sliding plate 27. The drive device 13 is connected to the top of the lead screw 12. The lead screw 12 is provided with the upper sliding plate 6 and the lower sliding plate 27. The ends of the upper sliding plate 6 and the lower sliding plate 27 are provided with upper and lower clamps with the same structure. The upper and lower clamps are both composed of matching lower hooks 7 and upper hooks 8. The upper sliding plate 6 and the lower sliding plate 27 are respectively connected to the upper hooks of the upper and lower clamps. The upper hook 8 and lower hook 7 are respectively provided with an upper groove 29 and a lower groove 30, which match each other to clamp the split sub-lead wire 21; the mounting device 2 includes a drive motor 4, the output shaft of which is connected to a hexagonal prism drive shaft 5; the drive device 13 is provided with a drive shaft insertion hole 15, after the hexagonal prism drive shaft 5 is inserted into the drive shaft insertion hole 15, the drive motor 4 transmits power to the drive device 13, the drive device 13 drives the lead screw 12 to rotate and drives the upper sliding plate 6 and the lower sliding plate 27 of the lead screw to move simultaneously along the lead screw 12, causing the upper hook 8 and the lower hook 7 of the upper and lower wire clamps to cooperate to clamp the split sub-lead wire 21.

[0033] The installation device 2 is equipped with a lifting ring 20 and a locking pin 3. The isolation clamp 24 is equipped with a connecting ring 1 and a locking pin insertion hole 17. The locking pin 3 is inserted into the locking pin insertion hole 17 to position and connect the isolation clamp 24 to the installation device 2. The connecting ring 1 is connected to the lightweight heavy-duty UAV 22 via the main suspension rope 25. The main suspension rope 25 and the connecting ring 1 have an automatic disengagement mechanism (existing technology). The lifting ring 20 is connected to the lightweight heavy-duty UAV 22 via the auxiliary suspension rope 26. The installation device 2 is equipped with a remote control module for receiving remote control signals and issuing control commands to control the drive motor 4 to drive the drive device 13 to rotate the lead screw 12, so that the upper hook 8 and the lower hook 7 cooperate to clamp the split sub-wire 21. After the isolation clamp 24 is installed, the locking pin 3 is opened remotely, the main suspension rope 25 is automatically disengaged from the connecting ring 1, the installation device 2 is separated from the isolation clamp 24, and the installation device 2 is taken back by the lightweight heavy-duty UAV 22. It can be reused, reducing the cost of use.

[0034] A spacing adjustment mechanism is provided between the upper and lower clamps. This mechanism includes an upper spacing adjustment plate 10, a fastening bolt 11, and a lower spacing adjustment plate 28. Both the upper and lower spacing adjustment plates 10 and 28 have slotted holes and are connected by the fastening bolt 11. These slotted holes are used to adjust the spacing between the upper and lower clamps. The upper end of the upper spacing adjustment plate 10 is connected to the lower hook of the upper clamp, and the lower end of the lower spacing adjustment plate 28 is connected to the lower hook of the lower clamp. The function of the spacing adjustment mechanism is to adjust the distance between the upper and lower clamps according to the distance between the two split conductors, making it match the distance between the two split conductors and improving the versatility of the isolation clamp of this invention.

[0035] The drive device 13 includes a reverse ratchet 14, a driven gear 16, a ratchet locking mechanism 18, and a drive gear 19. The drive gear 19 has a drive shaft insertion hole 15 on its drive shaft. The drive gear 19 meshes with the driven gear 16, and the driven gear 16 is connected to the top of the lead screw 12. The reverse ratchet 14 is provided on the drive shaft of the drive gear 19, and the reverse ratchet 14 is connected to the ratchet locking mechanism 18.

[0036] The drive gear 19 and the reverse ratchet are connected to the same power shaft, and the upper part of the power shaft adopts an inward hexagonal design to form a drive shaft insertion hole 15, which allows for the insertion of the hexagonal prism drive shaft 5 to the outside, providing power to the entire drive device. The reverse ratchet 14 is used to limit the drive gear 19 to move in only one direction, and the ratchet locking mechanism 18 is used to restrict the reverse ratchet from rotating in the opposite direction, thereby achieving the anti-loosening function of the isolation clamp.

[0037] The isolation clamp 24 is equipped with a slide rail, the lower hook 7 is fixed on the slide rail, and the upper hook 8 can slide along the slide rail.

[0038] The slide rail is an open groove, and the upper hook 8 is equipped with a slider that slides within the groove.

[0039] The upper groove 29 and lower groove 30 are inlaid with buffer rubber pads 9 to protect the split sub-wires 21 from cuts when locking them.

[0040] The number of locking pin insertion holes 17 and locking pins 3 are both two, to prevent the isolation clamp 24 from twisting between the isolation clamp 24 and the mounting device 2 under the action of the drive motor 4.

[0041] A method for installing a live transmission line conductor anti-adhesion isolation clamp includes the following steps:

[0042] The spacing adjustment mechanism is adjusted to match the distance between the two split conductors; the hexagonal prism drive shaft 5 is inserted into the drive shaft insertion hole 15, the locking pin 3 is inserted into the locking pin insertion hole 17, and the mounting device 2 is integrated with the isolation clamp 24; the connecting ring 1 is connected to the lightweight heavy-duty drone 22 via the main suspension rope 25, and the hanging ring 20 is connected to the lightweight heavy-duty drone 22 via the auxiliary suspension rope 26; the lightweight heavy-duty drone 22 lifts the isolation clamp 24 and flies it above the two split conductors, then the lightweight heavy-duty drone 22 descends and adjusts left and right until the two conductors are aligned. The split sub-conductors 21 are inserted into the upper and lower clamps of the isolation clamps 24, respectively. After the monitoring machine 23 observes that the split sub-conductors 21 have entered the upper groove 29 or the lower groove 30, the ground personnel remotely control the drive motor to start and lock the split sub-conductors 21 into the upper groove 29 and the lower groove 30. Subsequently, the locking pin 3 is opened remotely, the main suspension rope 25 is automatically disengaged from the connecting ring 1, the installation device 2 is separated from the isolation clamps 24, and the installation device 2 is taken back by the lightweight heavy-duty drone 22. It can be reused, reducing the cost of use.

[0043] In this embodiment, the functions of each component are as follows:

[0044] Connecting ring 1: Used to connect the lightweight heavy-duty drone 22 during operation, and is the stress point for hoisting the lightweight heavy-duty drone 22 during operation.

[0045] The upper sliding plate 6 and the lower sliding plate 27 of the lead screw are threaded inside. The upper sliding plate 6 and the lower sliding plate 27 of the lead screw are respectively connected to the upper hooks of the upper clamp and the lower clamp, so that the upper hooks can move in the slide rail (open slide groove). When the upper sliding plate 6 and the lower sliding plate 27 of the lead screw move downward, the two upper hooks move downward synchronously, thereby locking the split conductor 21.

[0046] Lower hook 7: with a lower groove 30, used to secure the splitter wire 21 and fasten it in the lower groove.

[0047] Upper hook 8: The two upper hooks can move within the open groove, thereby locking the splitter wire 21.

[0048] Buffer rubber pad 9: Made of semi-circular rubber, it is embedded in the upper groove 29 and the lower groove 30 to protect the split sub-wire 21 from cuts when locking the split sub-wire 21.

[0049] Upper spacing adjustment plate 10 and lower spacing adjustment plate 28: The middle slot (strip hole) of the upper spacing adjustment plate 10 and the lower spacing adjustment plate 28 realizes the adjustment of different spacings of the upper and lower wire clamps, so as to meet the different distances between the split sub-conductors 21 under different working conditions, thereby expanding the matching range of the isolation clamp and improving the versatility of the isolation clamp of the present invention.

[0050] Fastening bolt 11: used to connect and fix the upper adjustment plate 10 and the lower adjustment plate 28.

[0051] Lead screw 12: threaded, connected to driven gear 16. When driven gear 16 rotates, lead screw 12 also rotates synchronously, further driving the upper sliding plate 6 and the lower sliding plate 27 of lead screw to move, converting rotation into up and down motion.

[0052] Drive unit 13: It has an external enclosed housing containing a drive gear 19, a driven gear 16, and a reverse ratchet 14, etc.

[0053] Reverse ratchet 14: It is coaxially connected to the drive shaft of the drive gear 19 to limit the drive gear 19 to move in only one direction, thereby achieving the anti-loosening function of the isolation clamp.

[0054] Drive shaft insertion hole 15: It adopts an inward hexagonal design and is coaxial with the drive shaft of the drive gear 19. It can realize the insertion of the hexagonal drive shaft 5 to the outside and provide power for the entire drive device.

[0055] Driven gear 16: Connected to lead screw 12, and driven by drive gear 19, thereby driving lead screw 12 to rotate.

[0056] Locking pin insertion hole 17: Insert the locking pin 3 from the mounting device 2 to secure the mounting device 2 to the isolation clamp 24 and prevent twisting under the action of the drive motor 4. There are two locking pin insertion holes 17 and two locking pins 3.

[0057] Ratchet locking mechanism 18: used to restrict the reverse rotation of the reverse ratchet.

[0058] Drive gear 19: It is connected to the reverse ratchet on the same drive shaft, and the upper part of the drive shaft adopts an inward hexagonal design to form a drive shaft insertion hole 15.

[0059] The basic design of the mounting device 2 and its components, such as Figure 4 As shown. The mounting device 2 includes components such as a locking pin 3, a hexagonal prism drive shaft 5, a power supply, a remote control module, and a drive motor 4 with a speed reduction device.

[0060] Locking pin 3: can be inserted into locking pin insertion hole 17 to prevent the installation device from twisting left and right.

[0061] Drive motor 4: Contains a reduction gearbox, which increases torque while reducing speed, providing sufficient torque to the lead screw to ensure that the splitter wire is tightly locked.

[0062] Hexagonal prism drive shaft 5: It is the extension of the output shaft of drive motor 4. Its external shape is designed as a hexagonal prism and can be inserted into drive shaft insertion hole 15 to ensure that the drive motor drives the drive gear 19 to rotate at the same time.

[0063] Ring 20: Enables the installation device 2 to return to the ground with the lightweight drone when the operation is completed.

[0064] The power supply and remote control modules involved in this invention are all well-known and commonly used in the field, and can be purchased and used directly.

[0065] The specific live-line installation steps in this embodiment are shown in the schematic diagram below. Figure 5 and Figure 6 As shown.

[0066] ① Install an automatic unhooking mechanism (a mature industrial product available on the market) on one end of the main suspension rope 25 and connect it to the connecting ring 1. Connect the other end to the bottom hoisting part of the lightweight payload drone 22. The lightweight payload drone can be a DJI M300 / M350 drone, which is a drone with a certain load-bearing capacity, generally with a hoisting weight between 5kg and 10kg.

[0067] ② Connect one end of the auxiliary suspension rope 26 to the lifting ring 20 and the other end to the bottom lifting part of the lightweight heavy-duty UAV 22.

[0068] ③ Take off the light-load-bearing UAV 22, and simultaneously take off the monitoring and operation aircraft 23. The two UAVs maintain a certain distance, but the monitoring and operation aircraft 23 should always be able to monitor and provide effective feedback on the entire operation process of the light-load-bearing UAV 22.

[0069] ④ The lightweight heavy-duty drone 22 is lifted by the main suspension rope 25 to fly to the vicinity of the upper space above the position of the split sub-conductor 21.

[0070] ⑤ Adjust the position of the light-load drone 22 to be directly above the splitter wire 21.

[0071] ⑥ Adjust the light-load drone 22 to descend slowly and adjust it left and right until the two split sub-wires 21 just enter the upper and lower clamps of the isolation clamp.

[0072] ⑦ Check the positions of the upper and lower hooks and the entry of the two split sub-leads 21 into the upper trench 29 or lower trench 30 by monitoring the work machine 23, and confirm that there are no errors.

[0073] ⑧ Ground personnel remotely control the installation device 2, and use the remote control installation device 2 to drive the lead screw 12 to rotate, locking the split sub-lead wire 21 into the upper and lower grooves of the upper and lower clamps.

[0074] ⑨ Operate the lightweight heavy-duty drone 22 and the automatic unhooking mechanism to separate the main suspension rope 25 from the connecting ring 1. The lightweight heavy-duty drone 22 takes off upward, the locking pin 3 separates from the locking pin insertion hole 17, the hexagonal prism drive shaft 5 separates from the drive shaft insertion hole 15, and the mounting device 2 separates from the isolation clamp 24. At the same time, the auxiliary suspension rope 26 lifts the mounting device 2 and brings it back to the ground.

[0075] This completes the live installation of the anti-adhesion isolation clamp.

Claims

1. A live-line conductor anti-adhesion isolation clamp for transmission lines, characterized in that: The device includes an isolation clamp (24) and an installation device (2). The isolation clamp (24) includes a lead screw (12), a drive device (13), an upper sliding plate (6) and a lower sliding plate (27) on the lead screw. The drive device (13) is connected to the top of the lead screw (12). The lead screw (12) is provided with an upper sliding plate (6) and a lower sliding plate (27). The ends of the upper sliding plate (6) and the lower sliding plate (27) are provided with upper and lower clamps with the same structure. The upper and lower clamps are both composed of matching lower hooks (7) and upper hooks (8). The upper sliding plate (6) and the lower sliding plate (27) are respectively connected to the upper hooks of the upper and lower clamps. The upper hooks (8) and the lower hooks (7) are respectively provided with There are upper grooves (29) and lower grooves (30), which match each other to clamp the split sub-wires (21); the mounting device (2) includes a drive motor (4), the output shaft of the drive motor (4) is connected to a hexagonal prism drive shaft (5); the drive device (13) is provided with a drive shaft insertion hole (15), after the hexagonal prism drive shaft (5) is inserted into the drive shaft insertion hole (15), the drive motor (4) transmits power to the drive device (13), the drive device (13) drives the lead screw (12) to rotate and drives the upper sliding plate (6) and the lower sliding plate (27) of the lead screw to move simultaneously along the lead screw (12), which drives the upper hook (8) and the lower hook (7) of the upper and lower wire clamps to cooperate with each other to clamp the split sub-wires (21); The installation device (2) is provided with a lifting ring (20) and a locking pin (3). The isolation clamp (24) is provided with a connecting ring (1) and a locking pin insertion hole (17). The locking pin (3) is inserted into the locking pin insertion hole (17) to position and connect the isolation clamp (24) to the installation device (2). The connecting ring (1) is connected to the lightweight heavy-duty UAV (22) through the main suspension rope (25). The main suspension rope (25) and the connecting ring (1) have an automatic unhooking mechanism. The lifting ring (20) is connected to the lightweight heavy-duty UAV (22) through the auxiliary suspension rope (26). The installation device (2) is equipped with a remote control module, which is used to receive remote control signals and issue control commands to control the drive motor (4) to drive the drive device (13) to rotate the screw (12), so that the upper hook (8) and the lower hook (7) cooperate to clamp the split sub-wire (21); after the isolation clamp (24) is installed, the locking pin (3) is opened by remote control, the main suspension rope (25) is automatically disengaged from the connecting ring (1), the installation device (2) is separated from the isolation clamp (24), and the installation device (2) is taken back by the light-duty unmanned aerial vehicle (22) and can be reused.

2. The live-installable transmission line conductor anti-adhesion isolation clamp according to claim 1, characterized in that: A spacing adjustment mechanism is provided between the upper and lower wire clamps. The spacing adjustment mechanism includes an upper spacing adjustment plate (10), a fastening bolt (11), and a lower spacing adjustment plate (28). Both the upper spacing adjustment plate (10) and the lower spacing adjustment plate (28) are provided with strip holes and connected by fastening bolts (11). The strip holes are used for adjusting the spacing between the upper and lower wire clamps. The upper end of the upper spacing adjustment plate (10) is connected to the lower hook of the upper wire clamp, and the lower end of the lower spacing adjustment plate (28) is connected to the lower hook of the lower wire clamp.

3. A live-installable transmission line conductor anti-adhesion isolation clamp according to claim 1 or 2, characterized in that: The drive device (13) includes a reverse ratchet (14), a driven gear (16), a ratchet locking mechanism (18), and a drive gear (19). The drive gear (19) has a drive shaft insertion hole (15) on its power shaft. The drive gear (19) meshes with the driven gear (16), and the driven gear (16) is connected to the top of the lead screw (12). The drive gear (19) has a reverse ratchet (14) on its power shaft, and the reverse ratchet (14) is connected to the ratchet locking mechanism (18).

4. A live-installable transmission line conductor anti-adhesion isolation clamp according to claim 3, characterized in that: The drive gear (19) and the reverse ratchet are connected on the same drive shaft, and the upper part of the drive shaft adopts an inward hexagonal design to form a drive shaft insertion hole (15).

5. A live-installable transmission line conductor anti-adhesion isolation clamp according to claim 1 or 2, characterized in that: The isolation clamp (24) is equipped with a slide rail, the lower hook (7) is fixed on the slide rail, and the upper hook (8) can slide along the slide rail.

6. A live-installable transmission line conductor anti-adhesion isolation clamp according to claim 5, characterized in that: The slide rail is an open groove, and the upper hook (8) is equipped with a slider that slides in the groove.

7. A live-installable transmission line conductor anti-adhesion isolation clamp according to claim 1 or 2, characterized in that: The upper groove (29) and lower groove (30) are inlaid with buffer rubber pads (9).

8. A live-installable transmission line conductor anti-adhesion isolation clamp according to claim 1 or 2, characterized in that: The number of locking pin insertion holes (17) and locking pins (3) are both two.

9. A live-line installation method for an anti-adhesion isolation clamp for transmission line sub-conductors according to any one of claims 1-8, comprising the following steps: According to the distance between the two split conductors, the spacing adjustment mechanism is adjusted to match it; the hexagonal prism drive shaft (5) is inserted into the drive shaft insertion hole (15), the locking pin (3) is inserted into the locking pin insertion hole (17), and the mounting device (2) is connected to the isolation clamp (24); the connecting ring (1) is connected to the light-duty drone (22) through the main suspension rope (25), and the hanging ring (20) is connected to the light-duty drone (22) through the auxiliary suspension rope (26); the light-duty drone (22) lifts the isolation clamp (24) and flies it above the two split conductors, then the light-duty drone (22) descends and adjusts left and right, straight When the two split sub-wires (21) are just entering the upper and lower clamps of the isolation clamp (24) respectively; after the monitoring machine (23) checks that the split sub-wires (21) have entered the upper groove (29) or the lower groove (30), the ground personnel remotely control the drive motor to start and lock the split sub-wires (21) in the upper groove (29) and the lower groove (30); then the locking pin (3) is opened remotely, the main suspension rope (25) is automatically disengaged from the connecting ring (1), the installation device (2) is separated from the isolation clamp (24), and the installation device (2) is taken back by the light-duty drone (22) for reuse.

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