Overhead transmission line grounding wire hanging system

Abstract

The invention relates to an overhead transmission line grounding wire hanging system, and belongs to the field of cable maintenance equipment. According to the technical scheme, the device comprises a hanging device, the hanging device can be hung on a power transmission line, the upper end of the hanging device is connected with an unmanned aerial vehicle, and the hanging device is connected with a ground wire. By adopting the unmanned aerial vehicle to connect the ground wire with the power transmission line, ground personnel can control the unmanned aerial vehicle to accurately connect the ground wire with the power transmission line, and the problem of low working efficiency caused by low accuracy due to adoption of a manual throwing method is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of cable repair equipment, and in particular to a ground wire hanging system for an overhead power transmission line. Background Art

[0002] The working grounding wire is a safety device that short-circuits and grounds the power-off equipment. The zero potential of the earth is connected to the electrical equipment through the working grounding wire, so that the connected electrical equipment is at zero potential. When the transmission line is shut down for maintenance, hanging working grounding wires at each end of the working section is one of the technical measures to ensure safe work on the line. Its main function is to introduce the residual charge of the power-off line into the earth, eliminate the induced electricity of the adjacent live line, and prevent the line from suddenly sending power.

[0003] In the prior art, in the maintenance process of ultra-high voltage transmission lines, in order to ensure the safety of operations, it is usually necessary to arrange staff to climb onto the tower to perform line grounding operations before carrying out the maintenance work, in order to prevent safety accidents caused by accidental power-on during maintenance or inspection. The common portable grounding wire adopts the throwing method. At present, the portable grounding wire connectors effectively used at home and abroad are mostly hook-type, clamp-type and other structures, all of which use mechanical friction to achieve high-altitude hanging, that is, they need to rely on high-altitude workers to throw to complete.

[0004] As the voltage level of the transmission line increases and the spatial distance expands, the existing throwing method becomes more difficult to operate, time-consuming and labor-intensive, and affects the line maintenance process. Due to the inherent limitation of the transmission line grounding wire, which requires long-distance throwing operation, the existing grounding wire heads have the disadvantages of inconvenient operation, unreliable hanging, low throwing accuracy, and low work efficiency. Summary of the invention

[0005] The present invention aims at the problems in the prior art and provides an overhead power transmission line ground wire hanging system which is convenient for remote hanging, thereby solving the problems of time-consuming, labor-intensive and low-accuracy caused by the throwing method in the prior art.

[0006] The technical solution adopted by the present invention is as follows: A system for hanging a ground wire for an overhead power transmission line includes a hanging device, which can be hung on a power transmission line, and a drone is connected to the upper end of the hanging device, which is connected to the ground wire. By using a drone to connect the ground wire to the power transmission line, ground personnel can control the drone to accurately connect the ground wire to the power transmission line, thereby avoiding the problem of low accuracy and low work efficiency caused by the manual throwing method.

[0007] Preferably, a salvage hook is connected to the lower part of the drone, and an upper pull ring is connected to the upper end of the hanging device, and the drone and the hanging device are connected by the salvage hook and the upper pull ring. The salvage hook and the upper pull ring can facilitate the staff to control the separation of the drone and the hanging device.

[0008] Preferably, a dispenser is provided between the drone and the salvage hook, the upper end of the dispenser is connected to the drone, and the lower end of the dispenser is connected to the upper end of the salvage hook. Through the provided dispenser, when part of the hanging device or part of the grounding wire is caught and restricted by external foreign objects, the drone can be separated from the remaining parts through the dispenser, ensuring the safety of the drone's equipment, and the remaining equipment can be manually recovered later.

[0009] Preferably, the hanging device includes a support plate, one end of the support plate is a C-shaped hanging part, the hanging part is used to hang on the power transmission line, a guide plate is provided on the hanging part, the guide plate can abut against the power transmission line, the other end of the support plate is a connecting part for connecting the ground wire, and the hanging part is connected to the upper pull ring. By providing the support plate and the guide plate, the power transmission line can be accurately and quickly moved into the hanging part under the action of the guide plate when hanging.

[0010] Preferably, a locking mechanism is provided on the support plate, and the locking mechanism includes a first motor fixed on the support plate and a clamping member hingedly provided at one end on the support plate, a pull rod is connected to the output shaft of the first motor, a driving groove is provided on the clamping member, a pin is provided at one end of the pull rod away from the first motor, and one end of the pin is provided in the driving groove and reciprocates along the length direction of the driving groove. Through the provided locking mechanism, when the power transmission line is located in the hanging part, the locking mechanism can cooperate with the hanging part to cover the power transmission line, thereby avoiding the problem of the hanging device and the power transmission line being separated due to environmental factors at high altitude.

[0011] Preferably, the locking mechanism further comprises a clamping tooth fixedly mounted on the hanging part, and the clamping tooth has the same curvature as the hanging part. The provided clamping tooth can increase the friction between the hanging device and the power transmission line, further improving the stability of the connection between the hanging device and the power transmission line.

[0012] Preferably, two support plates are provided and the two support plates are fixedly connected by bolts, a wire pulling mechanism is provided on the support plate, the wire pulling mechanism includes a second motor fixedly mounted on the support plate, a wire reel is provided on the output shaft of the second motor, the wire reel is provided between the two support plates, the wire pulling mechanism also includes a flexible thin wire and a cone head with a conical end, the wire reel is fixedly connected to one end of the thin wire, the other end of the thin wire is fixedly connected to the conical end of the cone head, the end of the cone head away from the conical end is used to connect to the ground wire, a limit switch is also provided on the support plate, and the cone head can abut against the limit switch. By providing the wire pulling mechanism, the hanging device can be hung on the transmission line first and then the ground wire can be lifted, so as to avoid the problem of heavy load on the drone caused by the synchronous lifting of the ground wire and the hanging device.

[0013] Preferably, the wire pulling mechanism further comprises a ceramic wire ring, which is fixed on the support plate, and the thin wire is arranged in the ceramic wire ring. By setting the ceramic wire ring, the position of the thin wire can be adjusted before the thin wire is wound around the winding wheel, thereby reducing the risk of the thin wire being tangled during the winding process.

[0014] Preferably, two clamping mechanisms are arranged on the two support plates in a relative manner, and the clamping mechanism comprises a guide cover arranged on the outside of the support plate, a slider is arranged in the guide cover, a spring is arranged between the guide cover and the slider, and the two ends of the spring are respectively connected to the guide cover and the slider, and the end of the slider away from the guide cover can abut against the cone head. Through the provided clamping mechanism, after the grounding wire is lifted to the working position, the clamping mechanism can limit the cone head, thereby avoiding the risk of failure caused by the cone head being separated from the hanging device during operation.

[0015] Preferably, a tester is provided on the support plate, and the conductive part of the tester is electrically connected to the support plate. Through the tester, whether the power transmission line is powered on can be detected before the grounding wire is lifted, which further ensures work safety.

[0016] It can be seen from the above technical solutions that the advantages of the present invention are: by using a drone to connect the ground wire to the transmission line, the ground personnel can control the drone to accurately connect the ground wire to the transmission line, avoiding the problem of low accuracy and low work efficiency caused by the artificial throwing method. By setting the salvage hook and the upper pull ring, it is convenient for the staff to control the separation of the drone from the hanging device. By setting the dispenser, when part of the hanging device or part of the ground wire is caught and restricted by external foreign objects, the drone can be separated from the remaining parts by the dispenser to ensure the safety of the drone equipment, and the remaining equipment can be manually recovered later. By setting the support plate and the guide plate, the transmission line can be accurately and quickly moved to the hanging part under the action of the guide plate when hanging. By setting the locking mechanism, when the transmission line is located in the hanging part, the locking mechanism can cooperate with the hanging part to trap the transmission line, avoiding the problem of separation of the hanging device and the transmission line caused by environmental factors at high altitude. By setting the clamping teeth, the friction between the hanging device and the transmission line can be increased, and the stability of the connection between the hanging device and the transmission line can be further improved. Through the provided wire pulling mechanism, the hanging device can be hung on the transmission line before the grounding wire is lifted, avoiding the problem of heavy load on the drone caused by the simultaneous lifting of the grounding wire and the hanging device. Through the provided ceramic wire ring, the position of the thin wire can be adjusted before it is wound around the reel, reducing the risk of the thin wire getting tangled during the winding process. Through the provided clamping mechanism, after the grounding wire is lifted to the working position, the clamping mechanism can limit the cone head, avoiding the risk of failure caused by the cone head being separated from the hanging device during operation. Through the provided electrical tester, whether the transmission line is energized can be detected before lifting the grounding wire, further ensuring work safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a specific implementation example of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of an embodiment of a specific implementation of the present invention without the drone, salvage hook and launcher.

[0020] Figure 3 It is a structural schematic diagram of a hanging device, an electroscope and a grounding wire according to a specific implementation example of the present invention.

[0021] Figure 4A partial structural diagram of a specific embodiment of the present invention Figure 1 .

[0022] Figure 5 A partial structural diagram of a specific embodiment of the present invention Figure 2 .

[0023] Figure 6 A partial structural diagram of a specific embodiment of the present invention Figure 3 .

[0024] In the figure: 100, hanging device; 110, supporting plate; 111, hanging part; 112, connecting part; 120, guide plate; 130, locking mechanism; 131, first motor; 132, clamping member; 133, pull rod; 134, driving groove; 135, pin shaft; 136, clamping teeth; 140, wire pulling mechanism; 141, second motor; 142, wire reel; 143, ceramic wire ring; 144, cone head; 145, limit switch; 150, clamping mechanism; 151, guide cover; 152, slider; 153, spring; 200, drone; 300, salvage hook; 400, upper pull ring; 500, dispenser; 600, electrometer; 700, transmission line; 800, grounding wire. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0026] Example: like Figure 1-Figure 6As shown, a system for hanging a grounding wire for an overhead power transmission line includes a hanging device 100, which can be hung on a power transmission line 700, a drone 200 is connected to the upper end of the hanging device 100, and the hanging device 100 is connected to the grounding wire 800, a salvage hook 300 is connected to the lower part of the drone 200, an upper pull ring 400 is connected to the upper end of the hanging device 100, the drone 200 and the hanging device 100 are connected by hanging the salvage hook 300 and the upper pull ring 400, a dispenser 500 is arranged between the drone 200 and the salvage hook 300, the upper end of the dispenser 500 is connected to the drone 200, and the lower end of the dispenser 500 is connected to the upper end of the salvage hook 300, an electroscope 600 is arranged on the support plate 110, and the conductive part of the electroscope 600 is electrically connected to the support plate 110, so that the grounding wire 800 can be connected by using the drone 200 0 is connected to the transmission line 700, the ground personnel can control the UAV 200 to accurately connect the ground wire 800 to the transmission line 700, avoiding the problem of low accuracy and low work efficiency caused by the manual throwing method. The salvage hook 300 and the upper pull ring 400 are provided, which can facilitate the staff to control the separation of the UAV 200 from the hanging device 100. Through the provided dispenser 500, when part of the hanging device 100 or part of the ground wire 800 is caught and restricted by external foreign objects, the UAV 200 can be separated from the remaining parts through the dispenser 500, ensuring the equipment safety of the UAV 200, and the remaining equipment can be manually recovered later. Through the provided tester 600, whether the transmission line 700 is energized can be detected before lifting the ground wire 800, further ensuring work safety.

[0027] In this embodiment, the hanging device 100 includes a support plate 110, one end of the support plate 110 is a C-shaped hanging portion 111, the hanging portion 111 is used to be hung on the transmission line 700, a guide plate 120 is provided on the hanging portion 111, the guide plate 120 can abut against the transmission line 700, the other end of the support plate 110 is a connecting portion 112 for connecting the grounding wire 800, the hanging portion 111 is connected to the upper pull ring 400, and in this way, by providing the support plate 110 and the guide plate 120, the transmission line 700 can be accurately and quickly moved into the hanging portion 111 under the action of the guide plate 120 during hanging.

[0028] In this embodiment, a locking mechanism 130 is provided on the support plate 110, and the locking mechanism 130 includes a first motor 131 fixed on the support plate 110 and a clamping member 132 hingedly provided at one end on the support plate 110, the output shaft of the first motor 131 is connected to a pull rod 133, a driving groove 134 is provided on the clamping member 132, and a pin 135 is provided at one end of the pull rod 133 away from the first motor 131, and one end of the pin 135 is provided in the driving groove 134 and reciprocates along the length direction of the driving groove 134. The locking mechanism 130 also includes a first motor 131 fixed on the hanging portion 111 The clamping teeth 136 on the hanging part 111 have the same curvature as the hanging part 111. With such a configuration, through the provided locking mechanism 130, when the power transmission line 700 is located in the hanging part 111, the locking mechanism 130 can cooperate with the hanging part 111 to wrap the power transmission line 700, thereby preventing the hanging device 100 and the power transmission line 700 from being separated due to environmental factors at high altitudes. Through the provided clamping teeth 136, the friction between the hanging device 100 and the power transmission line 700 can be increased, thereby further improving the stability of the connection between the hanging device 100 and the power transmission line 700.

[0029] In the present embodiment, two support plates 110 are provided and the two support plates 110 are fixedly connected by bolts, a wire pulling mechanism 140 is provided on the support plate 110, the wire pulling mechanism 140 includes a second motor 141 fixedly provided on the support plate 110, a wire reel 142 is provided on the output shaft of the second motor 141, the wire reel 142 is provided between the two support plates 110, the wire pulling mechanism 140 also includes a flexible thin wire and a cone head 144 with a cone at one end, the wire reel 142 is fixedly connected to one end of the thin wire, the other end of the thin wire is fixedly connected to the cone end of the cone head 144, the end of the cone head 144 away from the cone end is used to connect to the ground wire 800, and a limited position is also provided on the support plate 110 The switch 145 and the cone head 144 can abut against the limit switch 145. The wire pulling mechanism 140 also includes a ceramic wire ring 143. The ceramic wire ring 143 is fixed on the support plate 110. The thin wire is arranged in the ceramic wire ring 143. With such arrangement, through the wire pulling mechanism 140, the hanging device 100 can be hung on the power transmission line 700 first and then the grounding wire 800 can be lifted, so as to avoid the problem of a heavy load on the drone 200 caused by the synchronous lifting of the grounding wire 800 and the hanging device 100. Through the ceramic wire ring 143, the position of the thin wire can be adjusted before the thin wire is wound around the winding wheel 142, thereby reducing the risk of the thin wire getting tangled during the winding process.

[0030] In this embodiment, two clamping mechanisms 150 are relatively arranged on the two support plates 110, and the clamping mechanism 150 includes a guide cover 151 arranged on the outside of the support plate 110, and a slider 152 is arranged in the guide cover 151. A spring 153 is arranged between the guide cover 151 and the slider 152, and the two ends of the spring 153 are respectively connected to the guide cover 151 and the slider 152. The end of the slider 152 away from the guide cover 151 can abut against the cone head 144. In this way, through the set clamping mechanism 150, after the grounding wire 800 is lifted to the working position, the clamping mechanism 150 can limit the cone head 144 to avoid the risk of failure caused by the cone head 144 being separated from the hanging device 100 during operation.

[0031] The working principle of this system is as follows: During the hanging operation, one end of the grounding wire 800 is connected to the grounding column of the iron tower, the salvage hook 300 is connected to the launcher 500 through a rope, and the launcher 500 is fixed to the bottom of the drone 200 through screws. The function of the launcher 500 is to control the action of the servo on the launcher 500 when the hanging device 100 is hung by an object, so as to abandon the hanging device 100 and protect the safety of the drone 200. After the drone 200 takes off, the salvage hook 300 is used to hook the upper pull ring 400 of the hanging device 100 to pull up the equipment. After flying to the upper end of the transmission line 700, the clamping piece 132 of the hanging device 100 is in the open state, and the clamping teeth 136 of the equipment are partially hung on the transmission line 700, and the drone 200 moves downward. , so that the salvage hook 300 is disengaged from the upper pull ring 400 and returns to the ground; the first motor 131 is controlled, and the clamping piece 132 is closed. At this time, the equipment and the transmission line 700 are connected. The metal part of the electroscope 600 contacts the transmission line 700 through the wire and the clamping teeth 136. The alarm light at the bottom of the electroscope 600 lights up and there is a buzzer sound, which proves that there is power on the transmission line 700 and the operation stops; on the contrary, the grounding wire 800 is operated, and the second motor 141 is controlled to pull up the cone head 144 and the grounding wire 800 at the same time until the limit switch 145 is touched and then stop. At the same time, the slider 152 will clamp the cone head 144. The system determines that it has been connected, and the cone head 144 of the grounding wire 800 is fixed to the grounding wire 800 by screws.

[0032] Offline operation: operate the second motor 141 to reverse, and put the grounding wire 800 and the cone head 144 on the ground; operate the first motor 131, loosen the clamping teeth 136, the UAV 200 takes off, hooks the upper pull ring 400 with the salvage hook 300, and removes the hanging device 100 from the power transmission line 700 to complete the whole set of operations.

[0033] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A system for hanging a ground wire of an overhead power transmission line, comprising a hanging device (100), characterized in that: The hanging device (100) can be hung on a power transmission line (700); the upper end of the hanging device (100) is connected to a drone (200); and the upper end of the hanging device (100) is connected to a grounding wire (800).

2. The overhead power transmission line ground wire hanging system according to claim 1, characterized in that: A salvage hook (300) is connected to the lower side of the drone (200), an upper pull ring (400) is connected to the upper end of the hanging device (100), and the drone (200) and the hanging device (100) are connected by hanging the salvage hook (300) and the upper pull ring (400).

3. The overhead power transmission line ground wire hanging system according to claim 2, characterized in that: A dispenser (500) is provided between the drone (200) and the salvage hook (300); the upper end of the dispenser (500) is connected to the drone (200), and the lower end of the dispenser (500) is connected to the upper end of the salvage hook (300).

4. The overhead power transmission line ground wire hanging system according to claim 2, characterized in that: The hanging device (100) comprises a support plate (110), one end of the support plate (110) is a C-shaped hanging portion (111), the hanging portion (111) is used to be hung on a power transmission line (700), a guide plate (120) is provided on the hanging portion (111), the guide plate (120) can abut against the power transmission line (700), the other end of the support plate (110) is a connecting portion (112) used to connect a grounding wire (800), and the hanging portion (111) is connected to an upper pull ring (400).

5. The overhead power transmission line ground wire hanging system according to claim 4, characterized in that: A locking mechanism (130) is provided on the support plate (110), and the locking mechanism (130) comprises a first motor (131) fixed on the support plate (110) and a clamping member (132) one end of which is hingedly provided on the support plate (110); a pull rod (133) is connected to an output shaft of the first motor (131); a driving groove (134) is provided on the clamping member (132); a pin shaft (135) is provided at one end of the pull rod (133) away from the first motor (131); one end of the pin shaft (135) is provided in the driving groove (134) and reciprocates along the length direction of the driving groove (134).

6. The overhead power transmission line ground wire hanging system according to claim 5, characterized in that: The locking mechanism (130) further comprises a clamping tooth (136) fixedly mounted on the hanging portion (111); the clamping tooth (136) and the hanging portion (111) have the same arc.

7. The overhead power transmission line ground wire hanging system according to any one of claims 4 to 6, characterized in that: Two support plates (110) are provided and the two support plates (110) are fixedly connected by bolts. A wire pulling mechanism (140) is provided on the support plate (110). The wire pulling mechanism (140) comprises a second motor (141) fixedly arranged on the support plate (110). A wire winding wheel (142) is provided on the output shaft of the second motor (141). The wire winding wheel (142) is arranged between the two support plates (110). The wire pulling mechanism (140) further comprises a flexible thin wire and a cone head (144) having a cone shape at one end. The wire winding wheel (142) is fixedly connected to one end of the thin wire, and the other end of the thin wire is fixedly connected to the cone end of the cone head (144). The end of the cone head (144) away from the cone end is used to connect to a ground wire (800). A limit switch (145) is also provided on the support plate (110). The cone head (144) can abut against the limit switch (145).

8. The overhead power transmission line ground wire hanging system according to claim 7, characterized in that: The wire pulling mechanism (140) further comprises a ceramic wire ring (143), wherein the ceramic wire ring (143) is fixedly arranged on the support plate (110), and the thin wire is arranged in the ceramic wire ring (143).

9. The overhead power transmission line ground wire hanging system according to claim 8, characterized in that: Two clamping mechanisms (150) are arranged on the two support plates (110) in a relative manner. The clamping mechanism (150) comprises a guide cover (151) arranged outside the support plate (110). A slider (152) is arranged inside the guide cover (151). A spring (153) is arranged between the guide cover (151) and the slider (152). Two ends of the spring (153) are respectively connected to the guide cover (151) and the slider (152). One end of the slider (152) away from the guide cover (151) can abut against the cone head (144).

10. The overhead power transmission line ground wire hanging system according to claim 4, characterized in that: An electroscope (600) is arranged on the support plate (110), and a conductive part of the electroscope (600) is electrically connected to the support plate (110).

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