Live-line mounting and dismounting tool for insulating rod of lightning arrester

Abstract

The invention discloses a tool for live-line mounting and dismounting of a lightning arrester insulating rod, and relates to the technical field of power maintenance. An insulating rod; the clamping mechanism is used for clamping a lightning arrester and comprises a frame body, clamp assemblies, a position adjusting block and a fixing clamp, the frame body is connected with the top end of the insulating rod through a universal locking mechanism, a sliding groove is formed in the frame body in the length direction of the frame body, the position adjusting block is slidably arranged in the sliding groove in a sleeved mode, and the clamp assemblies are fixed to the two ends of the position adjusting block respectively. The distance between the two clamp assemblies corresponds to the distance between porcelain bushings of the lightning arrester. The fixing clamp is arranged at the upper end of the frame body; the bolt disassembling and assembling assembly comprises an electric wrench and a magnetic adsorption sleeve, the electric wrench is fixed to the end of the frame body through a fixing clamp, and the magnetic adsorption sleeve is installed on the electric wrench. The problems that in the prior art, a lightning arrester bolt is not easy to disassemble and assemble, the lightning arrester installation shielding workload is large and the like are solved, the workload of lightning arrester overhaul, installation and replacement is reduced, and the lightning arrester replacement efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power maintenance, in particular to a live installation and removal tool for an insulating rod of a lightning arrester. Background Art

[0002] Lightning arresters are commonly used devices to protect electrical equipment from damage caused by lightning strikes. If you want to inspect a lightning arrester in operation, you need to remove the arrester. Since the equipment is energized and the arrester is fixed with bolts, the arrester can only be removed by power outage or live working. In order to ensure continuous electricity use for residents and meet the requirements of power supply reliability, it is necessary to minimize the number and duration of power outages; however, the workload of live working is too large, which not only wastes labor costs, but also causes the lightning arresters in the distribution network to fail to be inspected and replaced within the specified time. In seasons with frequent thunderstorms, distribution line tripping caused by lightning arrester failures occurs from time to time, affecting the safe and stable operation of the distribution lines.

[0003] The existing live replacement of lightning arresters is mostly done by using insulating blankets, jumper tubes, insulating sleeves and other tools as shielding measures to complete the replacement of lightning arresters. There is too much contact with live parts during the operation. The traditional operation process is as follows: Step 1: Use insulating blankets to insulate the crossarms, cement poles, and lightning arresters respectively, and use jumper tubes to insulate the arrester leads: Step 2: Remove the side and middle phase lightning arrester leads and fix them, replace the middle and side phase lightning arresters, overlap the leads and restore the insulation isolation measures. Step 3: Remove all insulation isolation measures from high to low and from far to near. Since the operation process requires full insulation isolation measures for the pole device and the steps are complicated, the operator will inevitably come into contact with more live parts.

[0004] Electric arcs often occur during the replacement process, which can easily cause burns to the operators; the upper and lower leads need to be disconnected during the replacement process, and there is also a risk of electric shock. Operators work on the insulated bucket on the insulated boom truck and are at risk of falling from a height. During the operation, due to human operational errors, the objectively small spacing between phase leads may cause phase-to-phase short circuits, posing a threat to people's property and personal safety.

[0005] Therefore, a working tool for live installation and replacement of 10kV lightning arresters on insulating poles is proposed to realize live installation of 10kV lightning arresters on insulating poles and solve the problem that the live working boom truck cannot reach the installation point. Live working can also be used to carry out 10kV lightning arrester installation and removal operations, thereby achieving installation, replacement and maintenance of equipment without power outage to the maximum extent. Summary of the invention

[0006] In view of the shortcomings of the above-mentioned prior art, the present invention provides a tool for installing and removing the insulating rod of a lightning arrester under power, which solves the problems in the prior art that the lightning arrester bolts are difficult to disassemble and assemble, and the lightning arrester installation shielding workload is large, reduces the workload of lightning arrester maintenance, installation and replacement, and improves the efficiency of lightning arrester replacement.

[0007] The specific technical solutions are as follows:

[0008] A live installation and removal tool for an insulating rod of a lightning arrester, comprising:

[0009] Insulating rod;

[0010] The clamping mechanism is used to clamp the arrester, including a frame, a clamp assembly, a position adjustment block and a fixed clamp. The frame is connected to the top of the insulating rod through a universal locking mechanism. The frame is provided with a slide groove arranged along its length. The position adjustment block sliding sleeve is arranged in the slide groove. The clamp assembly is respectively fixed at both ends of the position adjustment block. The distance between the two clamp assemblies corresponds to the porcelain sleeve spacing of the arrester, and is used for clamping between the porcelain sleeves. The fixed clamp is arranged at the upper end of the frame;

[0011] The bolt disassembly and assembly assembly comprises an electric wrench and a magnetic adsorption sleeve, wherein the electric wrench is fixed to the end of the frame by a fixing clamp, and the magnetic adsorption sleeve is installed on the electric wrench;

[0012] The controller is used to communicate with the clamp assembly and the electric wrench, and is used to control the opening and closing of the clamp assembly and the electric wrench.

[0013] Furthermore, in the above solution, the top end of the insulating rod is arranged in the middle or bottom of the frame.

[0014] Furthermore, in the above scheme, the upper and lower ends of the frame are respectively provided with quick-release connectors for connecting with fixing clips.

[0015] Furthermore, in the above scheme, adjustment openings are provided on both sides of the frame body relative to the opening of the slide slot, and the adjustment openings are of the same length as the opening of the slide slot; adjustment bolts are provided at the upper and lower ends of the position adjustment block corresponding to the adjustment openings, and the adjustment bolts pass through the adjustment openings and are connected to the position adjustment block for fixing the position adjustment block.

[0016] Furthermore, in the above scheme, the cross section of the slide groove of the frame body is a convex structure.

[0017] Furthermore, in the above scheme, two mounting frames are provided on one side of the position adjustment block corresponding to the clamp assembly, and the mounting frames include two mounting plates perpendicular to the position adjustment block, and the clamp assembly is mounted on the mounting frames.

[0018] Furthermore, in the above scheme, the clamp assembly includes a motor assembly and a clamp mechanism, and the motor assembly is used to drive the opening and closing of the clamp mechanism.

[0019] Further to the above scheme, the clamping mechanism includes a first clamping member, a second clamping member, a rotating shaft and a motor assembly, the first clamping member and the second clamping member are both semicircular in structure, and one end of the first clamping member and the second clamping member are symmetrically arranged between the two mounting plates through the rotating shaft, so that the first clamping member and the second clamping member can form a circular clamp when they rotate towards each other; the two rotating shafts are directly transmitted through gears; one of the rotating shafts is connected to the motor assembly, and the motor assembly is installed on the outside of the mounting frame.

[0020] Furthermore, in the above solution, the motor assembly includes a drive motor and a communication unit, and the drive motor is connected to the controller via the communication unit.

[0021] Furthermore, in the above scheme, the clamping mechanism also includes an electric telescopic rod, which is installed on the side of the frame away from the clamp assembly. One end of the electric telescopic rod is fixed to the frame, and the other end passes through an adjustment opening opened on the side of the frame away from the clamp assembly to connect to a position adjustment block, which is used to adjust the position adjustment block to move up and down along the slide groove.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The live installation and removal tool for lightning arrester insulation rods of the present invention can effectively solve the problem that the distance between the live body and the grounding body is insufficient when the cable head is untied, which easily causes grounding or phase-to-phase short circuit, endangering operators and power grid equipment, and can adjust the clamping position through the adjustable cable clamp to control the phase-to-phase and ground distance of the three-phase cable head, realize height control, avoid operators directly contacting the live body, and further ensure the safety of the operation. It has good promotion and application value.

[0024] The present invention replaces the existing operating method of wearing insulating gloves on an insulating bucket truck based on an insulating rod operating method, simplifies the shielding workload during the repair and replacement of the lightning arrester, and saves the procurement cost of shielding equipment for the enterprise.

[0025] The present invention realizes the long-distance installation of the lightning arrester through the insulating rod and the special clamp, and assists the lightning arrester operation to proceed smoothly by means of long-distance observation such as a miniaturized high-definition camera.

[0026] The present invention is equipped with a special tool head for removing the insulating rod of the lightning arrester bolt, which can realize the rapid installation and removal of the upper and lower bolts of the lightning arrester, avoid direct contact between the operating personnel and the live body, and improve the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the use state of the present invention;

[0028] Figure 2 yes Figure 1 Front view;

[0029] Figure 3 yes Figure 2 Schematic diagram of the installation and disassembly status;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping mechanism;

[0031] Figure 5 This is a schematic diagram of the position adjustment block structure of the present invention.

[0032] Figure 6 It is a schematic diagram of the structure of the clamping mechanism of the present invention.

[0033] In the accompanying drawings, 1-insulating rod, 2-clamping mechanism, 3-bolt disassembly and assembly assembly, 4-lightning arrester, 5-frame, 6-clamp assembly, 7-position adjustment block, 8-fixing clamp, 9-universal locking mechanism, 10-slide, 11-electric wrench, 12-magnetic adsorption sleeve, 13-quick release connector, 14-adjustment opening, 15-adjustment bolt, 16-mounting frame, 17-motor assembly, 18-first clamp, 19-second clamp, 20-rotating shaft, 21-gear. DETAILED DESCRIPTION

[0034] The following is a further detailed description of the embodiments of the invention in conjunction with the accompanying drawings to make the objectives, technical solutions and technical effects of the invention more clearly presented.

[0035] like Figure 1-6 As shown, the present invention discloses a live installation and removal tool for an insulating rod of a lightning arrester, comprising an insulating rod 1, a clamping mechanism 2, a bolt disassembly assembly 3 and a controller (the corresponding numbers are not given here, and the original text is used for the time being).

[0036] The insulating rod 1 is used by workers to support the clamping mechanism 2, the bolt disassembly assembly 3, etc., and to disassemble and install the corresponding lightning arrester 4. The insulating rod 1 can be an insulating rod used for existing power grid maintenance.

[0037] The clamping mechanism 2 is used to clamp the arrester 4, and specifically includes a frame 5, a clamp assembly 6, a position adjustment block 7 and a fixing clamp 8. Figure 4As shown. The frame 5 is connected to the top of the insulating rod 1 through a universal locking mechanism 9. The frame 5 is provided with a slide groove 10 arranged along its length. The position adjustment block 7 is slidably sleeved in the slide groove 10. The clamp assembly 6 is respectively fixed at both ends of the position adjustment block 7. The distance between the two clamp assemblies 6 corresponds to the porcelain sleeve spacing of the lightning arrester 4, and is used to clamp between the porcelain sleeves. The fixing clamp 8 is arranged at the upper end of the frame 5; the bolt disassembly assembly 3 includes an electric wrench 11 and a magnetic adsorption sleeve 12. The electric wrench 11 is fixed to the end of the frame 5 through the fixing clamp 8, and the magnetic adsorption sleeve 12 is installed on the electric wrench 11; the magnetic adsorption sleeve 12 is a sleeve with a magnet installed in it, which is used to adsorb nuts. The controller (the corresponding number is not given here, and the original text is used for the time being) is used to communicate with the clamp assembly 6 and the electric wrench 11, and is used to control the opening and closing of the clamp assembly 6 and the electric wrench 11. The controller acts as a worker to control the clamping mechanism 2 and the bolt disassembly and assembly assembly 3, specifically controlling the opening and closing of the electric wrench 11 and the clamp assembly 6; the controller can be a remote wireless remote control.

[0038] As a further implementation of the above solution, the top end of the insulating rod 1 can be arranged at the bottom of the frame 5, such as Figure 1-3 Of course, it can also be set in the middle of the frame 5, specifically in the middle of the frame 5 away from the clamp assembly 6 on one side, and the frame 5 is similarly connected to the insulating rod 1 through a universal locking mechanism 9.

[0039] To facilitate the installation and removal of the lightning arrester 4, the upper and lower ends of the frame 5 are respectively provided with quick-release connectors 13 for connecting the fixing clips 8. The fixing clips 8 are installed at the top or bottom of the frame 5 as needed. For example, when removing and installing the nuts at the top of the lightning arrester 4, the fixing clips 8 are installed at the top of the frame 5; when removing and installing the nuts at the bottom of the lightning arrester 4, the fixing clips 8 are installed at the bottom of the frame 5; the electric wrench 11 adjusts the installation position according to the fixing clips 8; this makes the installation and removal process of the electric wrench 11 convenient and efficient, saving work preparation time.

[0040] Adjustment openings 14 are also provided on both sides of the frame 5 relative to the opening of the slide slot 10, and the adjustment openings 14 are the same length as the opening of the slide slot 10; the upper and lower ends of the position adjustment block 7 are provided with adjustment bolts 15 corresponding to the adjustment openings 14, and the adjustment bolts 15 pass through the adjustment openings 14 and are threadedly connected to the position adjustment block 7 to fix the position adjustment block 7. Since the lightning arrester 4 has different specifications, that is, the porcelain sleeve spacing of the lightning arrester 4 is different, in order to enable the clamp assembly 6 to clamp the lightning arrester 4, the position adjustment block 7 adopts an adjustable structure, specifically, it is adjusted before use and then fixed by the adjustment bolts 15. It should be clear that the adjustment opening 14 is to facilitate the adjustment bolts 15 to follow the movement and fix the position adjustment block 7.

[0041] In order to enhance the guiding and limiting stability of the slide groove 10 on the position adjustment block 7, the slide groove 10 of the frame 5 is designed to have a convex cross-sectional structure, so that the position adjustment block 7 can slide more smoothly and is not easy to derail and shift, thereby ensuring operational reliability.

[0042] like Figure 4-6 As shown, two mounting frames 16 are provided on one side of the position adjustment block 7 corresponding to the clamp assembly 6, and the mounting frame 16 includes two mounting plates perpendicular to the position adjustment block 7, and the clamp assembly 6 is mounted on the mounting frame 16. The clamp assembly 6 includes a motor assembly 17 and a clamp mechanism, and the motor assembly 17 is used to drive the opening and closing of the clamp mechanism. The clamp mechanism includes a first clamp member 18, a second clamp member 19, a rotating shaft 20 and a motor assembly 17, the first clamp member 18 and the second clamp member 19 are both semicircular structures, and one end of the first clamp member 18 and the second clamp member 19 are symmetrically arranged between the two mounting plates through the rotating shaft 20, so that the first clamp member 18 and the second clamp member 19 can form a circular clamp when rotating towards each other; the two rotating shafts 20 are directly driven by gears 21; one of the rotating shafts 20 is connected to the motor assembly 17, and the motor assembly 17 is mounted on the outside of the mounting frame 16. The motor assembly 17 includes a driving motor and a communication unit. The driving motor is connected to a controller (the corresponding number is not given here, and the original text is used for the time being) through the communication unit.

[0043] As another implementation of the above scheme, the clamping mechanism 2 also includes an electric telescopic rod (the corresponding number is not given here, and the original text is used for the time being), and the electric telescopic rod is installed on the frame 5 on the side away from the clamp assembly 6. One end of the electric telescopic rod is fixed to the frame 5, and the other end passes through the adjustment opening 14 opened on the side of the frame 5 away from the clamp assembly 6 to connect the position adjustment block 7, which is used to adjust the position adjustment block 7 to move up and down along the slide slot 10. The electric telescopic rod can be connected to the control by means of the communication unit of the motor assembly 17; or an independent communication unit can be set to connect to the controller (the corresponding number is not given here, and the original text is used for the time being).

[0044] During installation, the lower bolts should be installed first, and then the upper bolts should be tightened. Specifically, a locking nut is prefabricated in the magnetic sleeve, and the remote-controlled electric clamp is unfolded to tighten the arrester 4. With the help of the insulating rod 1, it is moved to the crossarm or the arrester installation position, and the magnetic adsorption sleeve 12 at the end of the electric wrench 11 is controlled by the remote control to correspond to the bottom or top bolts of the arrester 4. When disassembling, the above-mentioned installation operations are carried out in the same way. When installing or disassembling the bottom or top bolts of the arrester 4, it is only necessary to install the electric wrench 11 and the fixing clamp 8 at the corresponding positions of the frame 5. The removal process is the opposite of the installation process. First remove the upper bolts, and then remove the lower bolts.

[0045] In the above scheme, the long-distance installation of the lightning arrester 4 is achieved through the insulating rod 1 and the special clamp, and a special tool head for removing the insulating rod of the lightning arrester bolt is developed to solve the problems of difficult disassembly and assembly of the lightning arrester bolts and large workload of lightning arrester installation shielding in the prior art, reduce the workload of lightning arrester maintenance, installation and replacement, and improve the efficiency of lightning arrester replacement.

[0046] The above description is only a preferred feasible embodiment of the present invention and is not intended to limit the scope of the patent application of the present invention. All equivalent changes, equivalent substitutions or modified changes performed within the technical spirit and principles suggested by the present invention should be included in the scope of patent protection covered by the present invention.

Claims

1. A live installation and removal tool for lightning arrester insulating rods, characterized in that: Insulating rod; The clamping mechanism is used to clamp the arrester, including a frame, a clamp assembly, a position adjustment block and a fixed clamp. The frame is connected to the top of the insulating rod through a universal locking mechanism. The frame is provided with a slide groove arranged along its length. The position adjustment block sliding sleeve is arranged in the slide groove. The clamp assembly is respectively fixed at both ends of the position adjustment block. The distance between the two clamp assemblies corresponds to the porcelain sleeve spacing of the arrester, and is used for clamping between the porcelain sleeves. The fixed clamp is arranged at the upper end of the frame; The bolt disassembly and assembly assembly comprises an electric wrench and a magnetic adsorption sleeve, wherein the electric wrench is fixed to the end of the frame by a fixing clamp, and the magnetic adsorption sleeve is installed on the electric wrench; The controller is used to communicate with the clamp assembly and the electric wrench, and is used to control the opening and closing of the clamp assembly and the electric wrench.

2. A live installation and removal tool for lightning arrester insulating rods according to claim 1, characterized in that: The top end of the insulating rod is arranged in the middle or bottom of the frame.

3. A live installation and removal tool for lightning arrester insulating rods according to claim 1, characterized in that: The upper and lower ends of the frame are respectively provided with quick-release joints for connecting fixing clips.

4. A live installation and removal tool for lightning arrester insulating rods according to claim 1, characterized in that: The frame is also provided with adjustment openings on both sides of the slide slot opening, and the adjustment openings are the same length as the opening of the slide slot; the upper and lower ends of the position adjustment block are provided with adjustment bolts corresponding to the adjustment openings, and the adjustment bolts pass through the adjustment openings and are connected to the position adjustment block to fix the position adjustment block.

5. A live installation and removal tool for lightning arrester insulating rods according to claim 1, characterized in that: The cross section of the slide groove of the frame body has a convex structure.

6. A live installation and removal tool for lightning arrester insulating rods according to claim 1, characterized in that: The position adjustment block is provided with two mounting frames on one side corresponding to the clamp assembly. The mounting frames include two mounting plates perpendicular to the position adjustment block. The clamp assembly is mounted on the mounting frames.

7. A live installation and removal tool for lightning arrester insulating rods according to claim 1, characterized in that: The clamp assembly comprises a motor assembly and a clamp mechanism, and the motor assembly is used to drive the clamp mechanism to open and close.

8. A live installation and removal tool for lightning arrester insulating rods according to claim 7, characterized in that: The clamping mechanism includes a first clamping member, a second clamping member, a rotating shaft and a motor assembly. The first clamping member and the second clamping member are both semicircular in structure, and one end of the first clamping member and the second clamping member are symmetrically arranged between two mounting plates through the rotating shaft, so that the first clamping member and the second clamping member can form a circular clamp when they rotate towards each other; the two rotating shafts are directly transmitted through gears; one of the rotating shafts is connected to the motor assembly, and the motor assembly is installed on the outside of the mounting frame.

9. A live installation and removal tool for lightning arrester insulating rods according to claim 7, characterized in that: The motor assembly includes a driving motor and a communication unit, and the driving motor is connected to the controller via the communication unit.

10. A live installation and removal tool for lightning arrester insulating rods according to claim 1, characterized in that: The clamping mechanism also includes an electric telescopic rod, which is installed on the side of the frame away from the clamp assembly. One end of the electric telescopic rod is fixed to the frame, and the other end passes through an adjustment opening opened on the side of the frame away from the clamp assembly to connect to a position adjustment block, which is used to adjust the position adjustment block to move up and down along the slide groove.

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