CN114039322A - Automatic wiring device for ice melting of overhead ground wire - Google Patents
Automatic wiring device for ice melting of overhead ground wire Download PDFInfo
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- CN114039322A CN114039322A CN202111419137.7A CN202111419137A CN114039322A CN 114039322 A CN114039322 A CN 114039322A CN 202111419137 A CN202111419137 A CN 202111419137A CN 114039322 A CN114039322 A CN 114039322A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers
Abstract
The invention belongs to the technical field of overhead ground wire ice melting, and discloses an automatic wiring device for overhead ground wire ice melting, which comprises a lifting system and a wiring system, wherein the lifting system comprises a driving assembly, a telescopic assembly and a control switch; the wiring system comprises an electric connection assembly and a ground wire connection wire, the electric connection assembly comprises a fixed contact and a moving contact, the fixed contact is electrically connected with a confluence current collector, the moving contact is fixedly connected with a telescopic assembly, the ground wire connection wire is connected between the moving contact and an overhead ground wire, when the driving assembly acts to drive the telescopic assembly to extend to the contact of the movable contact and the fixed contact, the control switch is triggered, and when the control switch is triggered, the driving assembly can be controlled to stop acting. The automatic wiring device for the ice melting of the overhead ground wire adopts a telescopic motion mode, no rotating and decelerating part is used in the process of opening and closing the switch, the structure is simple and reliable, and the wiring accuracy is high.
Description
Technical Field
The invention relates to the technical field, in particular to an automatic wiring device for deicing of an overhead ground wire.
Background
A high voltage transmission line generally refers to a transmission line that delivers voltages above 110 kV. High-voltage transmission is generally transmitted underground by cables with insulating layers in cities, and is transmitted by overhead lines carried by iron towers in the field. When an outdoor overhead line passes through an area where ice and snow or freezing rain frequently occur, adverse effects are often caused, and the occurrence probability of the ice-coating condition of the line is extremely high. Line icing refers to the condition where all wires within a range are covered with ice. The cold raindrops fall on an object with a temperature lower than the freezing point to form rime, and if the precipitation occurs, the precipitation is condensed on the electric wire, so that the electric wire is iced.
The mechanical load of the high-voltage transmission line is increased along with the increase of the ice coating, and the wind pressure is increased due to the increase of the wind-receiving area after the ice coating and the weight of ice borne by the electric wire, the insulator string and the tower. When the combined load of ice and wind exceeds the allowable value of the strength of the components, the line is damaged. Due to the influences of factors such as terrain, ground objects, wind direction and wind power, ice coating on the electric wires on the two sides of the line tower can be uneven, and ice and snow can be removed from the two sides in different periods due to the difference of conditions such as air temperature rise and wind vibration when the ice and snow melt. When a certain unfavorable combination of loads caused by uneven ice coating and irregular deicing on a line occurs, the tower is damaged by large torque and bending moment. Uneven tension caused by uneven ice coating can also cause the wire to be stranded at the wire clamp and even to be pulled apart, and the risk of wire breakage and tower falling is caused. In addition, the accidents of insulation strength reduction are also caused by the fact that the distance between the wire and the ground wire is reduced and the clearance distance between the wire and the ground or a crossing spanning object is reduced due to sag change caused by ice coating overload of the wire and the ground wire, uneven ice coating and ice shedding in different periods. The special type of movements such as conductor ice coating galloping and conductor ice-shedding jumping often also cause accidents such as damage to line components and breakdown of insulation gaps.
Overhead ground wire refers to a wire that communicates directly with the ground over high and extra-high voltage transmission lines. Due to the shielding of the overhead ground wire on the wire and the coupling effect between the wire and the overhead ground wire, the chance that thunder and lightning directly strikes the wire can be reduced. The wire diameter of the overhead ground wire is small, the overhead ground wire is more easily broken under the condition of ice coating and falls on a transmission line below the overhead ground wire, so that the line is tripped and powered off due to faults, and the overhead ground wire above the transmission line is not provided with a special ice melting loop, so that the ice melting of the overhead ground wire is very important.
The direct-current deicing is mainly characterized in that direct-current voltage is applied to the power transmission line, short circuit is carried out at the tail end of the power transmission line, the lead is heated to melt ice on the power transmission line, and therefore the phenomenon that the line falls down and breaks due to icing is avoided. The direct current ice melting technology is advanced, large load is not needed, only 1 to 2 ten thousand kilowatts are needed generally, the direct current output voltage is adjustable, ice melting can be carried out on single lines with different lengths within a certain range, line series connection is not needed any more, the operation is simpler, and a simpler and more convenient mode is provided for ice melting work of the lines. The current technology of automatic deicing for the relatively mature high-voltage transmission line is to increase the current in the wire to exceed the working current to cause the wire to generate heat, so that ice, snow, rime and the like attached to the wire are melted and fall off to achieve the purpose of removing the ice, snow, rime and the like. The existing ice melting connection of the overhead ground wire needs to be carried out by manually climbing up an overhead line iron tower, the safety risk is high, the efficiency is low, the existing ice melting device of the ground wire is mainly of a mechanical rotating type, the structure is complex, the size is large, the manufacturing cost is high, the closing precision is low, certain operation risk exists, and the operation and maintenance difficulty is high.
Therefore, there is a need for an automatic wiring device for ice melting of overhead ground wires to solve the above problems.
Disclosure of Invention
The invention aims to provide an automatic wiring device for ice melting of an overhead ground wire, which can safely and reliably realize automatic wiring of ice melting of the overhead ground wire and simultaneously reduce the manufacturing cost and the operation and maintenance cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic wiring device for ice melting of an overhead ground wire comprises a lifting system and a wiring system, wherein the lifting system comprises a driving assembly, a telescopic assembly and a control switch; the wiring system comprises an electric connection assembly and a ground wire connection wire, the electric connection assembly comprises a fixed contact and a moving contact, the fixed contact is electrically connected with a confluence current collector, the moving contact is fixedly connected with the telescopic assembly, the ground wire connection wire is connected between the moving contact and an overhead ground wire, the driving assembly acts to drive the telescopic assembly to extend to the position where the moving contact is contacted with the fixed contact, the control switch is triggered, and when the control switch is triggered, the driving assembly can be controlled to stop acting.
Optionally, the control switch includes a limiting plate, a switch assembly and a pull rope, two ends of the pull rope are respectively connected to the limiting plate and the telescopic assembly, the switch assembly is electrically connected to the driving assembly, the telescopic assembly can drive the limiting plate to move towards the switch assembly through the pull rope when being extended, when the moving contact is in contact with the static contact, the limiting plate abuts against and triggers the switch assembly, and when the switch assembly is triggered, the driving assembly can be controlled to stop acting.
Optionally, the flexible assembly includes a flexible rod portion and an insulating rod portion, the wiring system further includes a conductive element, the flexible rod portion includes a fixed end and a flexible end, the fixed end is fixedly connected to the output end of the driving assembly, the insulating rod portion is fixedly connected to the flexible end, the conductive element is fixedly connected to the insulating rod portion, and the moving contact and the ground wire connecting wire are both connected to the conductive element.
Optionally, the wiring system further comprises a rotating member rotatably connected to the conductive element, and the ground wire connecting wire is connected to the rotating member.
Optionally, the wiring system further includes a fixed contact fixing member and a fixed contact protecting cover, the fixed contact fixing member is installed on the collector, the fixed contact is installed on the fixed contact fixing member, and the fixed contact protecting cover is covered on the fixed contact.
Optionally, the static contact protection cover includes a first protection shell and a second protection shell that are rotatably connected, the first protection shell and the second protection shell are mutually buckled to form a protection cavity, and the static contact is located in the protection cavity.
Optionally, the wiring system further includes a shift lever, the shift lever is fixedly connected to the telescopic assembly and located on a side of the moving contact away from the driving assembly, and when the telescopic assembly is extended, the shift lever can shift the first protective shell and the second protective shell before the moving contact.
Optionally, the operating system still includes the shell and erects in the division board in the shell inner chamber, the division board will the inner chamber of shell is separated for energy supply district and flexible effect district, drive assembly install in the energy supply district, flexible subassembly with control switch install in flexible effect district.
Optionally, the automatic wiring device for ice melting of the overhead ground wire further comprises a wire winder, the wire winder is rotatably connected to a cross arm of the iron tower, one end of the ground wire connecting wire is connected to the moving contact, the other end of the ground wire connecting wire is connected to the overhead ground wire, and the middle part of the ground wire connecting wire is wound on the wire winder.
Optionally, the automatic wiring device for ice melting of the overhead ground wire further comprises a wire wheel, the wire wheel is rotatably connected to the cross arm of the iron tower, and when the telescopic assembly retracts to the telescopic action area, the ground wire connecting wire is wound on the wire wheel.
The invention has the beneficial effects that:
the automatic wiring device for the ice melting of the overhead ground wire comprises a lifting system and a wiring system, wherein the lifting system comprises a driving assembly, a telescopic assembly and a control switch. The driving assembly is electrically connected with the control switch, the telescopic assembly is connected with the driving assembly, and the control switch can control the locking of the telescopic assembly. The wiring system comprises an electric connection assembly and a ground wire connection wire, wherein a fixed contact of the electric connection assembly is electrically connected with a confluence current collector, a moving contact is fixedly connected with a telescopic assembly and can be close to or far away from the fixed contact along with the telescopic assembly, the ground wire connection wire is connected between the moving contact and an overhead ground wire, when the moving contact is in contact with the fixed contact, the overhead ground wire is communicated with the confluence current collector, and automatic wiring of ice melting of the overhead ground wire is completed. The automatic wiring device for the ice melting of the overhead ground wire adopts a telescopic motion mode, no rotating and decelerating part is used in the process of opening and closing the switch, the structure is simple and reliable, and the wiring accuracy is high.
Drawings
Fig. 1 is a schematic structural diagram of an initial state of an automatic wiring device for ice melting of an overhead ground wire according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a wiring state of the automatic wiring device for ice melting of the overhead ground wire according to the embodiment of the invention;
FIG. 3 is an enlarged view of the structure labeled A in FIG. 1;
fig. 4 is an enlarged view of the structure labeled B in fig. 2.
In the figure:
100. a lifting system; 110. a housing; 120. a drive assembly; 121. a hydraulic pump; 122. a hydraulic cylinder; 123. a hydraulic oil pipe; 130. a telescoping assembly; 131. a telescopic rod part; 132. an insulating rod portion; 140. a control switch; 141. a limiting plate; 142. a switch assembly; 143. pulling a rope; 144. a pull rope connecting rod; 145. pulling a rope and retracting a wheel; 150. a partition plate;
200. a wiring system; 210. an electrical connection assembly; 211. static contact; 212. a moving contact; 220. a ground wire connecting wire; 230. a conductive element; 240. a rotating member; 250. a stationary contact fixing member; 260. a static contact protective cover; 270. a deflector rod; 280. fixing the pipe fitting;
300. a wire rewinding device;
400. a wire guide wheel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
Fig. 1 is a schematic diagram illustrating an initial state structure of an automatic wiring device for ice melting of an overhead ground wire according to an embodiment of the present invention, and fig. 2 is a schematic diagram illustrating a wiring state structure of the automatic wiring device for ice melting of an overhead ground wire according to an embodiment of the present invention. Referring to fig. 1 and 2, the automatic overhead ground wire deicing wiring device provided by the present embodiment includes a lifting system 100, a wiring system 200, and a wire rewinding device 300.
Fig. 3 shows an enlarged view of the structure marked a in fig. 1. Referring to fig. 1 and 3, the lifting system 100 includes a housing 110, a driving assembly 120, a telescopic assembly 130, a control switch 140, and a separation plate 150. The shell 110 is installed on the cross arm of the iron tower, the partition plate 150 is erected in the inner cavity of the shell 110 to divide the inner cavity of the shell 110 into an energy supply area and a telescopic action area, the driving assembly 120 is installed in the energy supply area, and the telescopic assembly 130 and the control switch 140 are installed in the telescopic action area. The driving assembly 120 is electrically connected to the control switch 140, the retractable assembly 130 is connected to the driving assembly 120, and the control switch 140 can control the stop of the retractable assembly 130.
Specifically, drive assembly 120 includes a hydraulic pump 121, a hydraulic ram 122, and a hydraulic line 123. The hydraulic pump 121, the hydraulic cylinder 122 and the hydraulic oil pipe 123 are all mounted on the partition plate 150 and located in the power supply area of the housing 110. The hydraulic pump 121 is electrically connected to the control switch 140, and can drive the hydraulic cylinder 122 to move through the hydraulic oil pipe 123, and the telescopic assembly 130 is connected to the hydraulic cylinder 122, and can drive the telescopic assembly 130 to do telescopic movement when the hydraulic cylinder 122 moves.
Still more specifically, the telescopic assembly 130 includes a telescopic rod portion 131 and an insulating rod portion 132, and the telescopic rod portion 131 includes a fixed end and a telescopic end. The fixed end is fixedly connected to the output end of the driving assembly 120, and the insulating rod portion 132 is fixedly connected to the telescopic end. A portion of the wiring system 200 is attached to an end of the insulated pole 132 opposite to the telescopic pole 131, and the wiring system 200 can achieve automatic ground wire connection through the telescopic movement of the telescopic assembly 130, as shown in fig. 2. In this embodiment, hydraulic cylinder 122 and telescoping rod portion 131 cooperate to embody a conventional telescoping hydraulic cylinder.
More specifically, the control switch 140 includes a stopper plate 141, a switch assembly 142, a pull rope 143, a pull rope connecting rod 144, and a pull rope take-up pulley 145. The control switch 140 is located in the telescopic action zone and the switch assembly 142 is mounted in a hanging frame below the separation plate 150. The pull rope connecting rod 144 is fixedly connected to the telescopic rod part 131, the installation position of the pull rope connecting rod is close to the insulating rod part 132, two ends of the pull rope 143 are respectively connected to one end of the limiting plate 141 and one end of the pull rope connecting rod 144, the middle part of the pull rope connecting rod is wound in the pull rope winding wheel 145, the pull rope winding wheel 145 is hung on the lower side of the hanging frame, and the pull rope 143 between the pull rope winding wheel 145 and the pull rope connecting rod 144 can be wound under the action of the elastic reset piece. The switch unit 142 is electrically connected to the hydraulic pump 121, and the stopper plate 141 can be moved toward the switch unit 142 by the pull cord 143 when the telescopic rod 131 of the telescopic unit 130 is extended. The length of the pull rope 143 is designed to just pull the stopper plate 141 against the ground line when the telescopic rod 131 is extended to the connection system 200 to connect the ground line circuit, and trigger the switch assembly 142, and when the switch assembly 142 is triggered, the driving assembly 120 can be controlled to stop operating.
Fig. 4 shows an enlarged view of the structure marked B in fig. 2. Referring to fig. 2 to 4, the wiring system 200 of the automatic wiring device for deicing an overhead ground wire according to the present embodiment includes an electrical connection assembly 210, a ground wire connection line 220, a conductive element 230, and a stationary contact fixing member 250. One part of the electrical connection assembly 210 is connected to the telescopic assembly 130 through the conductive element 230, and the other part is connected to the collecting current collector through the fixed static contact part 250, when the two parts of the electrical connection assembly 210 are contacted under the action of the telescopic assembly 130, the closing and the communication of the ground wire circuit can be controlled, and the connection of the automatic ice melting circuit is realized. The ground connection line 220 is connected to the conductive element 230 at one end and to the overhead ground at the other end.
Specifically, the electrical connection assembly 210 includes a fixed contact 211 and a movable contact 212, the fixed contact fixing member 250 is electrically connected to the current collector, and the fixed contact 211 is fixedly connected to the upper end of the fixed contact fixing member 250.
In order to simultaneously connect the movable contact 212 and the ground connection line 220 to the telescopic assembly 130, a fixing tube 280 is fixedly connected to an end of the insulating rod portion 132 away from the telescopic rod portion 131, and the conductive element 230 is vertically connected to the fixing tube 280. Taking the fixed pipe 280 as a boundary, the movable contact 212 is connected to one side of the conductive element 230, and the ground connection 220 is connected to the other side of the conductive element 230.
Specifically, the ground wire connecting wire 220 is connected between the movable contact 212 and the overhead ground wire, when the driving assembly 120 operates to drive the telescopic assembly 130 to extend until the movable contact 212 contacts with the fixed contact 211, the control switch 140 is triggered, when the control switch 140 is triggered, the driving assembly 120 can be controlled to stop operating, at this time, the telescopic assembly 130 stops extending, the fixed contact 211 and the movable contact 212 keep a contact state, and the automatic ice melting line is continuously connected.
Preferably, the wiring system 200 further includes a rotating member 240, the rotating member 240 is rotatably connected to a side of the conductive element 230 facing away from the movable contact 212, and the ground connection 220 is connected to the rotating member 240. The rotating member 240 can rotate automatically according to the angle change of the ground wire 220, so that the ground wire 220 is always in a straightened state, and the fold of the ground wire 220 at the connection position with the conductive element 230 is avoided.
Preferably, the wiring system 200 further includes a static contact protecting cover 260, the static contact 211 is mounted on the static contact fixing component 250, and the static contact protecting cover 260 covers the static contact 211 to protect the static contact 211 from wind and snow.
Specifically, the static contact protection cover 260 includes a first protection shell and a second protection shell which are rotatably connected, the first protection shell and the second protection shell are buckled with each other to form a protection cavity, and the static contact 211 is located in the protection cavity. The openings of the first protective shell and the second protective shell are positioned opposite to the falling straight direction of the movable contact 212.
More specifically, the wiring system 200 further includes a shift lever 270, wherein the shift lever 270 is fixedly connected to the fixed pipe 280 and located on a side of the movable contact 212 facing away from the driving assembly 120. When the telescopic assembly 130 is extended, the shift lever 270 can be inserted into the opening between the first protective shell and the second protective shell before the moving contact 212, so as to shift the first protective shell and the second protective shell, and facilitate the moving contact 212 to extend into the protection cavity to abut against the fixed contact 211, thereby avoiding frequent impact between the moving contact 212 and the fixed contact protective cover 260, and prolonging the service life of the moving contact 212.
Referring to fig. 1 and 2, the automatic wiring device for ice melting of an overhead ground wire provided by the present embodiment further includes a wire rewinding device 300. The wire rewinding device 300 is rotatably connected to the cross arm of the iron tower through a post insulator, is insulated from the cross arm of the iron tower, and can bear the voltage during direct-current ice melting, wherein the voltage is generally below 35 kV. The ground connection line 220 has one end connected to the movable contact 212 and the other end connected to an overhead ground line, and the middle portion wound around the take-up 300. When the retractable assembly 130 is extended, the ground wire 220 wound on the wire winder 300 is gradually released, and the wire winder 300 has a coil spring return device, so that the ground wire 220 can be always kept in a straightened state, and the ground wire 220 is automatically rewound when the retractable assembly 130 is retracted.
Example two
The difference between the embodiment and the first embodiment is only that the automatic overhead ground wire deicing wiring device provided by the embodiment further comprises a wire wheel 400, as shown in fig. 1 to 3. The wire guide wheel 400 is rotatably connected to the cross arm of the iron tower and is positioned at the bottom of the side plate of the shell 110 and the corner of the cross arm of the iron tower. The ground connection line 220 can be wound around the wire guide wheel 400 when the retraction assembly 130 is retracted to the retraction active region. The wire guide wheel 400 can prevent the ground wire connection wire 220 from turning at the corner formed by the bottom of the shell 110 and the cross arm of the iron tower to form a crease, and can enable the winding of the ground wire connection wire 220 to be more flow field after the telescopic assembly 130 retracts to the telescopic action area.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An automatic termination of overhead ground wire ice-melt, its characterized in that includes:
the lifting system (100) comprises a driving assembly (120), a telescopic assembly (130) and a control switch (140), wherein the driving assembly (120) is electrically connected with the control switch (140), the telescopic assembly (130) is connected with the driving assembly (120), and the control switch (140) can control the telescopic assembly (130) to stop;
the wiring system (200) comprises an electric connection assembly (210) and a ground wire connection wire (220), wherein the electric connection assembly (210) comprises a fixed contact (211) and a movable contact (212), the fixed contact (211) is electrically connected to a current collector, the movable contact (212) is fixedly connected to the telescopic assembly (130), the ground wire connection wire (220) is connected between the movable contact (212) and an overhead ground wire, the driving assembly (120) acts to drive the telescopic assembly (130) to extend to the contact between the movable contact (212) and the fixed contact (211), the control switch (140) is triggered, and when the control switch (140) is triggered, the driving assembly (120) can be controlled to stop acting.
2. The automatic wiring device for ice melting of an overhead ground wire according to claim 1, wherein the control switch (140) comprises a limit plate (141), a switch assembly (142) and a pull rope (143), two ends of the pull rope (143) are respectively connected to the limit plate (141) and the telescopic assembly (130), the switch assembly (142) is electrically connected to the driving assembly (120), the telescopic assembly (130) can drive the limit plate (141) to move towards the switch assembly (142) through the pull rope (143) when being extended, the limit plate (141) abuts against and triggers the switch assembly (142) when the movable contact (212) is in contact with the fixed contact (211), and the switch assembly (142) can control the driving assembly (120) to stop acting when being triggered.
3. The automatic overhead ground wire ice-melting wiring device according to claim 1, wherein the telescopic assembly (130) comprises a telescopic rod portion (131) and an insulating rod portion (132), the wiring system (200) further comprises a conductive element (230), the telescopic rod portion (131) comprises a fixed end and a telescopic end, the fixed end is fixedly connected to the output end of the driving assembly (120), the insulating rod portion (132) is fixedly connected to the telescopic end, the conductive element (230) is fixedly connected to the insulating rod portion (132), and the movable contact (212) and the ground wire connection wire (220) are both connected to the conductive element (230).
4. The automatic overhead ground wire ice-melting wiring device according to claim 3, characterized in that the wiring system (200) further comprises a rotator (240), the rotator (240) being rotatably connected to the conductive element (230), the ground wire connection (220) being connected to the rotator (240).
5. The automatic wiring device for ice melting of an overhead ground wire according to claim 1, wherein the wiring system (200) further comprises a fixed static contact part (250) and a protective static contact cover (260), the fixed static contact part (250) is mounted on the collector, the static contact (211) is mounted on the fixed static contact part (250), and the protective static contact cover (260) covers the static contact (211).
6. The automatic wiring device for ice melting of an overhead ground wire according to claim 5, wherein the static contact protection cover (260) comprises a first protection shell and a second protection shell which are rotatably connected, the first protection shell and the second protection shell are buckled with each other to form a protection cavity, and the static contact (211) is located in the protection cavity.
7. The automatic overhead ground wire ice-melting wiring device according to claim 6, wherein the wiring system (200) further comprises a shift lever (270), the shift lever (270) is fixedly connected to the telescopic assembly (130) and located on a side of the movable contact (212) away from the driving assembly (120), and when the telescopic assembly (130) is extended, the shift lever (270) can shift the first protective shell and the second protective shell before the movable contact (212).
8. The automatic wiring device for ice melting of overhead ground wires according to any one of claims 1 to 7, wherein the lifting system (100) further comprises a housing (110) and a partition plate (150) erected in an inner cavity of the housing (110), the partition plate (150) divides the inner cavity of the housing (110) into an energy supply area and a telescopic action area, the driving assembly (120) is installed in the energy supply area, and the telescopic assembly (130) and the control switch (140) are installed in the telescopic action area.
9. The automatic wiring device for ice melting of overhead ground wires according to claim 8, further comprising a wire winder (300), wherein the wire winder (300) is rotatably connected to a cross arm of a tower, one end of the ground wire connecting wire (220) is connected to the movable contact (212), the other end of the ground wire connecting wire is connected to the overhead ground wire, and the middle part of the ground wire connecting wire is wound around the wire winder (300).
10. The automatic overhead ground wire ice-melting wiring device according to claim 9, further comprising a wire guide wheel (400), wherein the wire guide wheel (400) is rotatably connected to the cross arm of the iron tower, and when the telescopic assembly (130) is retracted to the telescopic action region, the ground wire connection wire (220) is wound around the wire guide wheel (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111419137.7A CN114039322A (en) | 2021-11-26 | 2021-11-26 | Automatic wiring device for ice melting of overhead ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111419137.7A CN114039322A (en) | 2021-11-26 | 2021-11-26 | Automatic wiring device for ice melting of overhead ground wire |
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| Publication Number | Publication Date |
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| CN114039322A true CN114039322A (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111419137.7A Pending CN114039322A (en) | 2021-11-26 | 2021-11-26 | Automatic wiring device for ice melting of overhead ground wire |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342412A (en) * | 2020-03-06 | 2020-06-26 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Automatic wiring device for ground wire ice melting |
| CN112087059A (en) * | 2020-09-29 | 2020-12-15 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Online detection device and detection method for closing state of automatic ground wire ice melting wiring device |
| CN113328405A (en) * | 2021-05-30 | 2021-08-31 | 东北电力大学 | Full-automatic direct current ice-melt short circuit control device of 220kV transmission line wire |
-
2021
- 2021-11-26 CN CN202111419137.7A patent/CN114039322A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342412A (en) * | 2020-03-06 | 2020-06-26 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Automatic wiring device for ground wire ice melting |
| CN112087059A (en) * | 2020-09-29 | 2020-12-15 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Online detection device and detection method for closing state of automatic ground wire ice melting wiring device |
| CN113328405A (en) * | 2021-05-30 | 2021-08-31 | 东北电力大学 | Full-automatic direct current ice-melt short circuit control device of 220kV transmission line wire |
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