A mechanism and robot for wrapping insulating tape around bare conductors of overhead power transmission lines.

Abstract

This invention belongs to the field of power transmission line robots, and provides a mechanism and robot for wrapping insulating tape around bare conductors of overhead power transmission lines. The mechanism includes, from front to back, a wrapping and positioning component, a sealing and heating component, an insulating film fixing component, a sealing and pressing component, and a heating, shrinking, and online detection component. This invention uses insulating tape and insulating films to wrap bare conductors, replacing the need for applying insulating coating, thus solving the problems of uneven insulation thickness and the inability to detect the coating quality in existing power transmission line bare conductor insulation coating devices.

Description

Technical Field

[0001] This invention belongs to the field of power transmission line robots, and particularly relates to a mechanism and robot for wrapping insulating tape around bare conductors of overhead power transmission lines. Background Technology

[0002] The management of safety hazards in power transmission lines is an important part of the power grid. If safety hazards in power transmission lines are not addressed in a timely and effective manner, such as those near fishponds, houses, or trees, they can easily cause casualties; and long-span lines are prone to phase-to-phase short circuits and tripping during severe weather. Therefore, safety hazards in power transmission lines directly affect the normal production of enterprises and the electricity consumption of residents.

[0003] Currently, several domestic companies are involved in the production and application of insulation coating robots, which quickly solve offline safety hazards. However, shortcomings have also been exposed during their application. The insulation coating has a short shelf life, less than one year. The angle of the bare conductor changes constantly during construction, resulting in uneven thickness of the insulation layer after coating and uncontrollable quality. In addition, the surface of steel-cored aluminum stranded wire has grooves. If the insulating glue inside the nozzle cannot maintain a certain positive pressure, the air remaining in the grooves will significantly reduce the withstand voltage of the insulation layer. Existing insulation coating robots cannot perform quality inspection during the operation process, resulting in only partial sampling inspections for acceptance after project completion, which poses a great safety hazard to line operation. Summary of the Invention

[0004] In view of the above problems, the purpose of this invention is to provide a mechanism and robot for wrapping insulating tape on bare conductors of overhead power transmission lines, which solves the problems of short storage period of existing insulating coatings, uneven thickness of insulation layer coating in existing bare conductor insulation coating devices, and inability to detect the quality of insulation layer coating process.

[0005] The present invention adopts the following technical solution:

[0006] The overhead power transmission line bare conductor insulation tape wrapping mechanism includes, from front to back, a wrapping positioning component, a sealing heating component, an insulation film fixing component, a sealing pressing component, a heating shrinking component, and an online detection component.

[0007] Furthermore, the package positioning assembly includes two package positioning nozzles that are hinged to each other and capable of surrounding the bare wire, and positioning hooks are formed on the package positioning nozzles.

[0008] Furthermore, the sealing heating assembly includes two sealing heating nozzles that are hinged to each other and capable of surrounding the bare wire, one of which is provided with a heating plate.

[0009] Furthermore, the insulating film fixing assembly includes two interlocking arc-shaped tightening members that can surround the insulated wire, and an aluminum alloy strip for fixing the insulating film to the insulated wire is placed inside the arc-shaped tightening members.

[0010] Furthermore, the sealing and clamping assembly includes two sealing and clamping nozzles that are hinged to each other and capable of surrounding the insulated wire, one of which is provided with a clamping wheel.

[0011] Furthermore, the heating shrink assembly includes two heating shrink nozzles that are hinged together and capable of surrounding the insulated wires, and the heating shrink nozzles have hot air inlets.

[0012] Furthermore, the online detection component includes two interconnected online detection nozzles that can surround the insulated wire. Each online detection nozzle is provided with a contact wheel for the wire, and the axle of the contact wheel is connected to a voltage and current acquisition unit via a signal line.

[0013] Furthermore, multiple sets of rolling steel balls are evenly distributed on the inner sides of the package positioning nozzle, sealing heating nozzle, and sealing pressing nozzle, and several air outlets connected to the hot air inlet are distributed on the inner side of the heating shrink nozzle.

[0014] In addition, the parcel robot also includes a shell, inside which are installed an insulating tape reel, a butane cylinder and a battery. The butane cylinder is connected to the heating and shrinking assembly through a gas supply pipe. The parcel robot also includes wheels, and the shell is also equipped with a lifting assembly.

[0015] The beneficial effects of this invention are as follows: This invention provides a mechanism and robot for wrapping insulating tape around bare conductors of overhead power transmission lines. The wrapping mechanism can uniformly and stably wrap insulating tape and insulating sheets around the bare conductors, resulting in good wrapping quality. The wrapping mechanism also heats the insulating sheets and tape wrapped around the bare conductors, ensuring that the insulating sheets and tape fully melt and shrink, wrapping the bare conductors without gaps, thereby improving the withstand voltage value of the insulation layer on the bare conductors. An online detection unit can monitor the quality of the wrapped conductors in real time. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the insulating tape wrapping mechanism provided by the present invention. Figure 1 .

[0017] Figure 2 This is a three-dimensional structural diagram of the insulating tape wrapping mechanism provided by the present invention. Figure 2 .

[0018] Figure 3 This is a structural schematic diagram of the parcel robot provided by the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the insulating tape wrapping mechanism and the bare wire provided by the present invention. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the invention.

[0021] To illustrate the technical solution described in this invention, specific embodiments are described below.

[0022] For ease of explanation, only the parts relevant to the embodiments of the present invention are shown.

[0023] Combination Figure 1-4 As shown, in this embodiment, the end where the package positioning component is located is the front end of the package mechanism, and the end where the heated steel pipe is located is the rear end of the package mechanism. The package robot includes a mechanism for wrapping insulating tape around bare conductors of overhead power lines. The mechanism includes, from front to back, a package positioning component 1, a sealing heating component 2, an insulating film fixing component 3, a sealing pressing component 4, a heating shrinking component 5, and an online detection component 13. The package robot also includes a housing 7, inside which are installed an insulating tape reel 8, a butane cylinder 9, and a battery. The butane cylinder 9 is connected to the hot air inlet 502 on the heating shrinking component 5 through a gas supply pipe 10. The package robot also includes wheels 11, and the housing 7 is also equipped with a lifting component 12.

[0024] The insulating tape on the tape reel is delivered to the wrapping and positioning component. The traveling wheels drive the wrapping mechanism along the bare conductor, and the wrapping and positioning component evenly wraps the insulating tape around the conductor. The sealing heating component heats the two edges of the insulating tape, ensuring a tighter seal while it is molten. The insulating sheet fixing component tightens the internal aluminum alloy strip, fixing the insulating sheet to the bare conductor before opening it, preventing the insulating sheet from moving during the wrapping process. The sealing compression component presses the unhardened insulating sheet to seal it. The compression wheels are made of a material with high thermal conductivity to allow for rapid cooling of the seal, preventing cracking due to subsequent heating and shrinkage. A butane cylinder supplies hot air to the heating and shrinking component via a gas pipe. The hot air fully heats and melts the insulating tape and insulating sheet on the bare conductor, ensuring the insulation layer is fully softened, shrunk, and adheres tightly to the conductor. The lifting mechanism moves the housing up and down. The battery powers the electrical components on the robot.

[0025] Combination Figure 1-2As shown, in a preferred configuration, the wrapping and positioning assembly 1 includes two wrapping and positioning nozzles 101 that are hinged together and capable of surrounding the bare wire, with positioning hooks 102 formed on each nozzle. The sealing and heating assembly 2 includes two sealing and heating nozzles 201 that are hinged together and capable of surrounding the bare wire, with a heating plate 202 connected to one of the sealing and heating nozzles 201. The positioning hook positions the insulating tape, ensuring that the wrapping and positioning nozzles can evenly wrap the insulating tape around the bare wire, and that the overlapping portion of the insulating tape meets the process requirements. After the two sealing and heating nozzles are closed, the heating plate is located at the overlapping portion of the insulating tape, and the heating plate heats the insulating tape, melting the surface of the overlapping portion, making the sealing of the insulating tape tighter.

[0026] Combination Figure 1-2 As shown, in a preferred configuration, the insulating film fixing assembly 3 includes two interlocking arc-shaped tightening members 301 that can surround the insulated wire. An aluminum alloy strip for fixing the insulating film to the insulated wire is placed inside each arc-shaped tightening member 301. The sealing and pressing assembly 4 includes two interlocking sealing and pressing nozzles 401 that can surround the insulated wire, one of which is equipped with a pressing wheel 402. The arc-shaped tightening members wrap the insulating film around the bare wire using the aluminum alloy strip, the pressing wheel presses the aluminum alloy strip, and the aluminum alloy strip fixes the insulating film to the bare wire, preventing the insulating film from moving synchronously with the insulating wrapping robot.

[0027] Combination Figure 1-2 As shown, in a preferred configuration, the heat shrink assembly 5 includes two hinged heat shrink nozzles 501 that can surround the insulated wire. Each heat shrink nozzle 501 has a hot air inlet 502, and its inner side is provided with several air outlets 503 communicating with the hot air inlets 502. The air outlets are located inside the heat shrink nozzles, ensuring uniform heating of the insulating tape and insulating film on the bare wire. The hot air ejected from the air outlets fully heats and melts the insulating tape and insulating film wrapped around the bare wire, ensuring that the insulating tape and insulating film adhere tightly to the bare wire.

[0028] In addition, multiple sets of rolling steel balls 14 are evenly distributed on the inner sides of the wrapping positioning nozzle 101, the sealing heating nozzle 201, and the sealing pressing nozzle 401. The rolling ball assembly on each nozzle can reduce the friction between each nozzle and the insulating film during movement.

[0029] Combination Figure 1-2As shown, in a preferred configuration, the online detection assembly 13 includes two interconnected online detection nozzles 1301 that surround the insulated conductor. Each online detection nozzle 1301 has a contact wheel 1302 for contacting the conductor. The axle of each contact wheel 1302 is connected to a voltage and current acquisition unit via a signal line. The contact wheel acquires the current and voltage on the outer insulation layer of the conductor to determine whether the insulation layer meets the insulation requirements.

[0030] The working process of this invention is as follows: Before the packaging mechanism is put into operation, it is in an open state. Insulating tape is laid inside the packaging mechanism, with a length exceeding that of the insulating tape fixing assembly. The lifting assembly on the packaging robot hangs the packaging mechanism above the bare wire. At this time, the bare wire is pressed onto the insulating tape. The packaging positioning assembly is closed, and the insulating tape enters the groove of the packaging positioning assembly. The switch of the sealing heating assembly is activated, and the heating element begins to heat the overlapping area of ​​the insulating tape. The insulating tape fixing assembly is closed, and the aluminum alloy strip inside is fixed to the wire. Then, it is opened. The insulating tape is then firmly fixed to the wire by the insulating tape fixing assembly. The walking motor on the wrapping robot is activated, driving the wheels to move along the bare wire. The sealing and pressing assembly's pressing wheels compact the melted insulating tape. The ignition power supply on the heating and shrinking assembly is activated, and the heating and shrinking nozzle also surrounds the bare wire. Hot air from the butane cylinder is supplied to the heating and shrinking nozzle through the gas pipe. The hot air blows onto the bare wire through the outlet, heating and shrinking the insulating tape and insulating film wrapped on the bare wire, forming an insulating layer on the bare wire. As the wrapping mechanism moves along the bare wire, the bare wire is evenly wrapped with an insulating layer. The wire contact wheel collects the current and voltage on the outer insulation layer of the wire, using the current and voltage to determine whether the insulation layer can provide stable insulation.

[0031] In summary, this invention provides a mechanism and robot for wrapping insulating tape around bare conductors of overhead power transmission lines. The wrapping mechanism can uniformly and stably wrap insulating tape and insulating sheets around the bare conductors, resulting in good wrapping quality. The wrapping mechanism also heats the insulating sheets and tape wrapped around the bare conductors, ensuring that the insulating sheets and tape fully melt and shrink, wrapping the bare conductors without gaps, thereby improving the withstand voltage of the insulation layer on the bare conductors.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the invention should be included within the protection scope of the present invention.

Claims

1. A bare conductor insulating tape wrapping mechanism for a power transmission overhead line, characterized by, The package includes, from front to back, a package positioning component, a sealing and heating component, an insulating tape fixing component, a sealing and pressing component, a heating and shrinking component, and an online detection component; the package mechanism as a whole is a clamp-type design. The package positioning assembly includes two package positioning nozzles that are hinged to each other and capable of surrounding the bare wire, and positioning hooks are formed on the package positioning nozzles; The sealing heating assembly includes two sealing heating nozzles that are hinged together and can surround bare wires, one of which is provided with a heating plate; The insulating tape fixing assembly includes two interlocking arc-shaped tightening members that can surround the insulated wire, and an aluminum alloy strip for fixing the insulating tape to the insulated wire is placed inside the arc-shaped tightening members. The sealing and clamping assembly includes two sealing and clamping nozzles that are hinged to each other and can surround the insulated wire, one of which is provided with a clamping wheel; The heating shrink assembly includes two heating shrink nozzles that are hinged together and can surround the insulated wires, and the heating shrink nozzles have hot air inlets.

2. The bare conductor insulating tape wrapping mechanism for power transmission overhead lines according to claim 1, characterized in that, The online detection component includes two interconnected online detection nozzles that can surround the insulated wire. Each online detection nozzle is provided with a contact wheel for the wire, and the axle of the contact wheel is connected to a voltage and current acquisition unit via a signal line.

3. The insulating tape wrapping mechanism for bare conductors of overhead power transmission lines according to claim 2, characterized in that, Multiple sets of rolling steel balls are evenly distributed on the inner sides of the packaging positioning nozzle, sealing heating nozzle, and sealing pressing nozzle, and several air outlets connected to the hot air inlet are arranged on the inner side of the heating shrink nozzle.

4. A parcel delivery robot, characterized in that, The package robot includes the insulating tape wrapping mechanism for bare conductors of overhead power transmission lines as described in any one of claims 1-3. The package robot also includes a housing, inside which are provided an insulating tape reel, a butane cylinder, and a battery. The butane cylinder is connected to the heating and shrinking assembly via a gas supply pipe. The package robot also includes wheels, and the housing is also provided with a lifting assembly.

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