Distribution network line unmanned aerial vehicle live-line shearing lightning arrester lead device

Abstract

The invention relates to the field of live-line shearing, in particular to a distribution network line unmanned aerial vehicle live-line shearing lightning arrester lead device which comprises an unmanned aerial vehicle, a supporting frame at the bottom of the unmanned aerial vehicle is connected with a positioning piece, and a fixing structure is arranged in the positioning piece and drives a rotating shaft to rotate through a second motor, a belt and a belt pulley. Leads with different diameters are tightened by the upper clamping block and the lower clamping block through threads, so that the leads do not displace during shearing; a second electric air cylinder at the bottom of the mounting frame drives a cutting knife, a cutting groove matched with the cutting knife is formed in the top of a wire collecting box below the cutting knife, a wire groove in the surface of the wire collecting box guides a cut-off lead to enter an internal hollow structure of the wire collecting box, shearing operation is completed through movement and cyclic operation of the unmanned aerial vehicle, efficiency is improved, and meanwhile the wire collecting box can prevent chippings from splashing; personnel and equipment are protected; the unmanned aerial vehicle is used for operation, an operator performs remote control, the electric shock risk is avoided, the operation safety is improved, many problems of a traditional mode are effectively solved, and the device is suitable for live-line shearing maintenance of the lightning arrester lead of the distribution network line.

Description

Technical Field

[0001] The present invention relates to the field of live shearing, and particularly to a live shearing arrester lead device for distribution network lines by an unmanned aerial vehicle (UAV). Background Art

[0002] With the continuous development of social economy, the demand for electricity continues to grow, and the scale of the power system is becoming increasingly large. The distribution network lines are constantly extending, covering a wider range and involving a large number of equipment. In this context, as a protection device, the maintenance of arresters in the distribution network lines becomes increasingly important. For example, in urban construction, new residential areas and commercial areas are emerging continuously, and the power supply needs to keep up in a timely manner. The distribution network lines are constantly expanding, and the number of arresters also increases accordingly.

[0003] In the prior art, manually climbing the pole tower to shear the arrester lead is one of the traditional maintenance methods. This method has relatively high safety risks. The operator needs to work at heights and faces risks such as falling and electric shock. In addition, the efficiency of manual operation is relatively low. The physical strength and skill level of the operator are limited. When dealing with some complex situations, such as the inconvenient position of the arrester lead on the pole tower for operation and the difficult judgment of the lead damage situation, manual operation may take a long time and it is difficult to ensure the maintenance quality. Manual operation is also restricted by the labor intensity and working environment. Long-term high-altitude operation is likely to cause fatigue to the operator, affecting work efficiency and accuracy.

[0004] Therefore, it is very necessary to propose a live shearing arrester lead device for distribution network lines by an unmanned aerial vehicle to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a live shearing arrester lead device for distribution network lines by an unmanned aerial vehicle, so as to solve the problems that the operator needs to work at heights and faces risks such as falling and electric shock, and the efficiency of manual operation is relatively low. The physical strength and skill level of the operator are limited. When dealing with some complex situations, such as the inconvenient position of the arrester lead on the pole tower for operation and the difficult judgment of the lead damage situation, manual operation may take a long time and it is difficult to ensure the maintenance quality. Manual operation is also restricted by the labor intensity and working environment. Long-term high-altitude operation is likely to cause fatigue to the operator, affecting work efficiency and accuracy.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A device for cutting the lead of a lightning arrester under power on a distribution network line by using a drone, comprising a drone, wherein two support frames are fixedly connected to the bottom of the drone, the support frames are in an "L-shaped structure", one end of each of the two support frames is respectively connected to a positioning piece, the positioning piece is in a "C"-shaped structure, a fixing structure is arranged inside the positioning piece, the fixing structure is used to fix the lead of the lightning arrester, a mounting frame is fixedly connected between the two positioning pieces, sliding rods are fixedly installed at both ends of the bottom of the mounting frame, a cutting knife is slidably installed on the sliding rod, and a junction box is arranged below the cutting knife.

[0007] Preferably, the support frame is provided with a groove, and an insulating telescopic rod is slidably installed in the groove, a motor 1 is installed in one of the grooves, the insulating telescopic rod is transmission-connected to the motor 1, a connecting rod is fixedly connected between the two insulating telescopic rods, and a slide groove is provided on the side of the two support frames close to each other, and the connecting rod is slidably arranged on the slide groove.

[0008] Preferably, the fixing structure includes four rotating shafts, and each of the positioning members is respectively provided with two rotating shafts, both ends of the rotating shafts are rotatably mounted on the inner wall of the positioning member, the rotating shafts are provided with threads, and the screwing directions of the threads on the two rotating shafts on the same positioning member are opposite, a slider is threadedly mounted on the thread of the rotating shaft, one end of the slider is connected to a connecting rod, one side of the connecting rod is connected to a fixed sleeve, the fixed sleeve has a "C"-shaped structure, an upper clamping block is fixedly mounted on the upper end of the fixed sleeve, a lower clamping block is arranged on the lower end of the fixed sleeve, an electric cylinder 1 is fixedly mounted on the inner bottom of the positioning member, the electric cylinder 1 is transmission connected to the lower clamping block, and anti-slip corrugations are arranged on the side where the upper clamping block and the lower clamping block are close to each other.

[0009] Preferably, a pulley is fixedly installed on the rotating shaft near the bottom, a belt is transmission-connected to the pulley, and a second motor is fixedly installed on the inner bottom of the positioning member, and the second motor is transmission-connected to the other end of the belt.

[0010] Preferably, a second electric cylinder is fixedly mounted on the bottom of the mounting frame, a connecting arm is fixedly mounted between the two cutting knives, and the second electric cylinder is transmission-connected to the connecting arm.

[0011] Preferably, the top of the wire collection box is fixedly connected to the bottom of the sliding rod, and the two sides of the wire collection box are fixedly connected to the positioning piece.

[0012] Preferably, cutting grooves are provided at both ends of the top of the junction box, the cutting grooves are provided on the right side of the cutting knife, and the cutting grooves are adapted to the cutting knife. The interior of the junction box is a hollow structure, and a plurality of wire grooves are provided on the surface of the junction box, and the wire grooves are interconnected with the interior of the junction box.

[0013] Technical effects and advantages of the present invention: 1. Motor 2 drives the shaft to rotate through a belt and a pulley, and uses the shaft with the opposite screw threading direction to make the upper clamp block and the lower clamp block tighten the arrester lead. This mechanical transmission method is accurate and stable, and can adapt to leads of different diameters, ensuring that cutting is easy during the cutting process and the lead does not move.

[0014] 2. Through the guidance of multiple wire grooves on the surface of the junction box, the leads cut off from the end of the leads can pass through the wire grooves in an orderly manner into the hollow structure inside the junction box for collection. After the lead cutting is completed, the drone is controlled to move slowly, and the uncut leads enter the surface of the junction box along the wire grooves. Then the leads are fixed again and cut. The cut part of the arrester lead will also fall into the inside of the junction box. The operation is cyclic until the cutting operation is completed, which improves the cutting efficiency.

[0015] 3. The junction box plays a certain protective role in the cutting process. It can prevent the debris generated during cutting from splashing and avoid accidental damage to operators, surrounding equipment, and drones.

[0016] 4. Use drone-mounted devices to perform live shearing operations. Operators do not need to directly contact high-voltage lines, avoiding the risk of electric shock. When handling lightning arrester leads on overhead lines, operators can remotely control the drone from a safe distance, greatly improving the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic structural diagram of a lead-in device for a live shearing arrester for a distribution network line drone.

[0018] Figure 2 It is a schematic diagram of the positioning member structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the front view structure of the fixing structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the cutting structure of the cutting knife of the present invention.

[0021] Figure 5 It is a schematic diagram of the front view structure of the junction box of the present invention.

[0022] Figure 6 It is a schematic diagram of the telescopic structure of the insulating telescopic rod of the present invention.

[0023] In the figure: 1. UAV; 2. Support frame; 3. Groove; 4. Insulated telescopic rod; 5. Motor 1; 6. Positioning piece; 7. Fixed structure; 701. Rotating shaft; 702. Thread; 703. Sliding block; 704. Connecting rod; 705. Fixed jacket; 706. Upper clamping block; 707. Lower clamping block; 708. Electric cylinder 1; 709. Pulley; 710. Motor 2; 711. Belt; 712. Anti-slip corrugation; 8. Mounting frame; 9. Electric cylinder 2; 10. Connecting arm; 11. Cutting knife; 12. Sliding rod; 13. Junction box; 14. Cutting groove; 15. Wire trough; 16. Connecting rod; 17. Slide groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The present invention provides Figures 1-6 A distribution network line unmanned aerial vehicle live lightning arrester lead cutting device shown, comprising a drone 1, the bottom of the drone 1 is fixedly connected to two support frames 2, the support frames 2 are in an "L-shaped structure", one end of the two support frames 2 are respectively connected to a positioning member 6, the positioning member 6 is in a "C"-shaped structure, the positioning member 6 is provided with a fixing structure 7 inside, the fixing structure 7 is used to fix the lightning arrester lead, a mounting frame 8 is fixedly connected between the two positioning members 6, both ends of the bottom of the mounting frame 8 are fixedly installed with a sliding rod 12, a cutting knife 11 is slidably installed on the sliding rod 12, and a junction box 13 is provided below the cutting knife 11; The support frame 2 is provided with a groove 3, and an insulating telescopic rod 4 is slidably installed in the groove 3. A motor 5 is installed in one of the grooves 3. The insulating telescopic rod 4 is transmission-connected to the motor 5. A connecting rod 16 is fixedly connected between the two insulating telescopic rods 4. A slide groove 17 is provided on the side close to each other on the two support frames 2, and the connecting rod 16 is slidably arranged on the slide groove 17; In the embodiment of the present invention, when the UAV is working, the insulating telescopic rod 4 is driven by the motor 5 to slide in the groove 3 provided on the support frame 2, so that the positioning member 6 is moved closer to the arrester lead; the insulating telescopic rod 4 is driven by the motor 5 to slide in the groove 3, so that the extension length of the insulating telescopic rod 4 can be accurately controlled, and then the connecting rod 16 is driven to slide on the slide groove 17, so as to realize the operation of accurately moving the positioning member 6 closer to the arrester lead. This adjustable structural design enables the positioning member 6 to flexibly adjust the relative position with the arrester lead according to actual needs, adapt to the specific position requirements of the arrester lead in different installation scenarios, and ensure the accuracy of positioning; The insulating telescopic rod 4 is used as a transmission and adjustment component. Even in an environment where there may be high voltage, such as near the lead wire of the lightning arrester, it can effectively avoid electrical safety accidents such as short circuits caused by component conduction, ensuring the insulation of the device itself during the entire operation process, making it safer and more reliable for operators to perform related installation, maintenance, and other work.

[0026] The fixing structure 7 includes four rotating shafts 701, and two rotating shafts 701 are respectively arranged on each positioning member 6. Both ends of the rotating shaft 701 are rotatably installed on the inner wall of the positioning member 6. Threads 702 are provided on the rotating shaft 701, and the threads 702 on the two rotating shafts 701 on the same positioning member 6 have opposite advancing directions. A slider 703 is threadedly installed on the thread 702 of the rotating shaft 701. One end of the slider 703 is connected to a connecting rod 704, and one side of the connecting rod 704 is connected to a fixing outer sleeve 705. The fixing outer sleeve 705 has a "C" - shaped structure. An upper clamping block 706 is fixedly installed at the upper end inside the fixing outer sleeve 705, and a lower clamping block 707 is arranged at the lower end inside the fixing outer sleeve 705. An electric cylinder 708 is fixedly installed at the bottom inside the positioning member 6, and the electric cylinder 708 is in transmission connection with the lower clamping block 707; In the embodiment of the present invention, when the drone 1 carries the device close to the lead wire of the lightning arrester, first, the positioning member 6 approaches the lead wire of the lightning arrester under the action of the insulating telescopic rod 4. At this time, the four rotating shafts 701 in the fixing structure 7 are in a rotatable state, and the upper clamping block 706 and the lower clamping block 707 are in an open state, ready to receive the lead wire of the lightning arrester; An electric cylinder 9 is fixedly installed at the bottom of the mounting frame 8, and a connecting arm 10 is fixedly installed between the two cutting knives 11. The electric cylinder 9 is in transmission connection with the connecting arm 10; When the upper and lower clamping blocks are about to contact the lead wire of the lightning arrester, the electric cylinder 708 is activated to push the lower clamping block 707 to move upward to cooperate with the upper clamping block 706 to clamp the lead wire of the lightning arrester.

[0027] Then, the electric cylinder 9 drives the connecting arm 10 to make the cutting knife 11 cut the lead wire of the lightning arrester.

[0028] Furthermore, anti - slip corrugations 712 are provided on the sides of the upper clamping block 706 and the lower clamping block 707 that are close to each other; The anti - slip corrugations 712 on the sides of the upper clamping block 706 and the lower clamping block 707 that are close to each other can increase the friction with the lead wire of the lightning arrester, ensuring firm clamping and preventing the lead wire from sliding during subsequent operations.

[0029] By means of the threaded transmission driven by the motor 2 710, the clamping force and position of the upper clamp block 706 and the lower clamp block 707 can be accurately controlled. This mechanical transmission method has higher reliability and stability. Compared with some simple clamping structures, it can better adapt to arrester leads of different diameters, ensuring that the leads will not be displaced during the cutting process, thereby ensuring the safety and accuracy of the operation.

[0030] The setting of the electric cylinder 708 further enhances the clamping force. On the basis of the initial clamping of the threaded drive, the electric cylinder 708 provides additional thrust to make the clamping tighter. In particular, for some lightning arrester leads where there may be oil or other impurities on the surface that affect the friction, the role of the electric cylinder 708 can make up for the lack of friction caused by impurities and ensure the reliability of clamping.

[0031] See also Figures 2-3 In the embodiment of the present invention, a pulley 709 is fixedly installed near the bottom of the rotating shaft 701, and a belt 711 is transmission-connected to the pulley 709. A second motor 710 is fixedly installed at the bottom of the positioning member 6, and the second motor 710 is transmission-connected to the other end of the belt 711; When the arrester lead is fixedly sheared, the second motor 710 is started, and the second motor 710 drives the belt 711 connected thereto to move, and the belt 711 then drives the four pulleys 709 to rotate synchronously. Since the two rotating shafts 701 on the same positioning member 6 have opposite screwing directions, when the rotating shaft 701 rotates, the sliders 703 threaded thereon will move toward each other for the two sliders 703 on one positioning member 6, so that the upper clamping block 706 and the lower clamping block 707 gradually tighten the arrester lead.

[0032] Motor 2, as a power source, can quickly drive belt 711 and pulley 709 to move slider 703 quickly, thereby tightening the arrester lead in a shorter time, making it easier to cut. Compared with manual operation or some complex mechanical adjustment methods, the operating efficiency is greatly improved.

[0033] See also Figures 4-5 In the embodiment of the present invention, the top of the wiring collection box 13 is fixedly connected to the bottom of the sliding rod 12, and the two sides of the wiring collection box 13 are fixedly connected to the positioning member 6; Cutting grooves 14 are provided at both ends of the top of the wiring collection box 13. The cutting grooves 14 are provided on the right side of the cutting knife 11, and the cutting grooves 14 are adapted to the cutting knife 11. The interior of the wiring collection box 13 is a hollow structure. A plurality of wire grooves 15 are provided on the surface of the wiring collection box 13. The wire grooves 15 are connected to the interior of the wiring collection box 13. When the entire device is transported to the working position by a drone, the positioning member 6 is close to the arrester lead and fixed under the action of the insulating telescopic rod 4 and other components, and the junction box 13 is in a stable working position through the fixed connection between its top and the bottom of the sliding rod 12 and the fixed connection between its two sides and the positioning member 6. At this time, the cutting knife 11 is located on the sliding rod 12 and is in the initial waiting position, and the corresponding cutting grooves 14 at both ends of the top of the junction box 13 below are also ready; As the cutting knife 11 moves downward, its blade gradually approaches and enters the cutting groove 14 at the top of the junction box 13. Since the cutting groove 14 is adapted to the cutting knife 11, the cutting knife 11 can accurately cut the arrester lead in the cutting groove 14, and during the cutting process, the cut portion of the arrester lead falls into the junction box 13.

[0034] The multiple wire grooves 15 on the surface of the junction box 13 act as guides, so that the leads cut from the ends of the leads can pass through the wire grooves 15 in an orderly manner into the hollow structure inside the junction box 13 for collection. Then the fixed leads are released, and the drone is controlled to move slowly. The uncut leads enter the surface of the junction box 13 along the wire grooves 15. Then the leads are fixed and cut again. The cut parts of the arrester leads will also fall into the junction box 13. The operation is repeated until the cutting operation is completed.

[0035] At the same time, the junction box 13 plays a certain protective role during the cutting process. It can prevent the debris generated during cutting from splashing and avoid accidental damage to operators, surrounding equipment, and drones. At the same time, the junction box 13 collects the cut lightning arrester leads inside, avoiding the risk of short circuit or other safety hazards caused by the falling leads.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for cutting the lead wire of a lightning arrester by a drone on a distribution network line, comprising a drone (1), characterized in that: The bottom of the drone (1) is fixedly connected to two support frames (2), the support frames (2) are in an "L-shaped structure", one end of each of the two support frames (2) is respectively connected to a positioning member (6), the positioning member (6) is in a "C"-shaped structure, a fixing structure (7) is provided inside the positioning member (6), the fixing structure (7) is used to fix the lead wire of the lightning arrester, a mounting frame (8) is fixedly connected between the two positioning members (6), sliding rods (12) are fixedly installed at both ends of the bottom of the mounting frame (8), a cutting knife (11) is slidably installed on the sliding rod (12), and a junction box (13) is provided below the cutting knife (11).

2. According to claim 1, a distribution network line drone live shearing arrester lead device is characterized by: The support frame (2) is provided with a groove (3), and an insulating telescopic rod (4) is slidably installed in the groove (3), a motor (5) is installed in one of the grooves (3), the insulating telescopic rod (4) is transmission-connected to the motor (5), a connecting rod (16) is fixedly connected between the two insulating telescopic rods (4), and a sliding groove (17) is provided on the side of the two support frames (2) close to each other, and the connecting rod (16) is slidably arranged on the sliding groove (17).

3. According to claim 1, a distribution network line drone live shearing arrester lead device is characterized by: The fixing structure (7) comprises four rotating shafts (701), and each of the positioning members (6) is provided with two rotating shafts (701), both ends of the rotating shafts (701) are rotatably mounted on the inner wall of the positioning member (6), a thread (702) is provided on the rotating shaft (701), and the screwing directions of the threads (702) on the two rotating shafts (701) on the same positioning member (6) are opposite, a slider (703) is threadedly mounted on the thread (702) of the rotating shaft (701), and one end of the slider (703) is connected to a connecting rod (704), A fixed sleeve (705) is connected to one side of the connecting rod (704), and the fixed sleeve (705) is in a "C"-shaped structure. An upper clamping block (706) is fixedly installed at the upper end of the fixed sleeve (705), and a lower clamping block (707) is arranged at the lower end of the fixed sleeve (705). An electric cylinder 1 (708) is fixedly installed at the bottom of the interior of the positioning member (6), and the electric cylinder 1 (708) is transmission-connected to the lower clamping block (707). An anti-slip corrugation (712) is arranged on the side where the upper clamping block (706) and the lower clamping block (707) are close to each other.

4. A distribution network line drone live shearing arrester lead device according to claim 3, characterized in that: A pulley (709) is fixedly mounted on the rotating shaft (701) near the bottom, and a belt (711) is transmission-connected to the pulley (709). A second motor (710) is fixedly mounted on the inner bottom of the positioning member (6), and the second motor (710) is transmission-connected to the other end of the belt (711).

5. According to claim 1, a distribution network line drone live shearing arrester lead device is characterized by: A second electric cylinder (9) is fixedly mounted on the bottom of the mounting frame (8), a connecting arm (10) is fixedly mounted between the two cutting knives (11), and the second electric cylinder (9) is in transmission connection with the connecting arm (10).

6. The distribution network line drone live shearing arrester lead device according to claim 1 is characterized by: The top of the wiring collection box (13) is fixedly connected to the bottom of the sliding rod (12), and the two sides of the wiring collection box (13) are fixedly connected to the positioning member (6).

7. A distribution network line drone live shearing arrester lead device according to claim 6, characterized in that: Cutting grooves (14) are provided at both ends of the top of the junction box (13), the cutting grooves (14) are provided on the right side of the cutting knife (11), and the cutting grooves (14) are adapted to the cutting knife (11), the interior of the junction box (13) is a hollow structure, and a plurality of wire grooves (15) are provided on the surface of the junction box (13), and the wire grooves (15) are interconnected with the interior of the junction box (13).

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