CN107302204B - Upper combined electricity taking device - Google Patents
Upper combined electricity taking device Download PDFInfo
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- CN107302204B CN107302204B CN201710094956.6A CN201710094956A CN107302204B CN 107302204 B CN107302204 B CN 107302204B CN 201710094956 A CN201710094956 A CN 201710094956A CN 107302204 B CN107302204 B CN 107302204B
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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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Abstract
The invention discloses an upper combined type electricity taking device, which is used for an upper combined type ground wire ice melting automatic wiring device, can effectively solve the problem of insufficient space of a short arm cross arm, and comprises a contact finger assembly, a guide plate, a protective cover, a wire clamp assembly, a corner joint and a connecting assembly; the connecting assembly is arranged on two sides of the jumper wire suspension clamp body, the corner joint is arranged at the lower end of the connecting assembly, the lower end of the corner joint is connected with the protective cover bottom plate through channel steel, the wire clamp assembly is further arranged on the protective cover bottom plate, and the contact finger assembly and the guide plate are arranged inside the protective cover. The upper combined type power takeoff device is arranged on a jumper wire suspension clamp of an insulator jumper wire string, wherein the upper part of a corner joint is connected with a connecting component, and the lower part of the corner joint is connected with channel steel on a bottom plate of a protective cover, so that the angle deflection between the upper combined type power takeoff device and the jumper wire can be realized.
Description
Technical Field
The invention relates to the technical engineering field of overhead transmission lines, in particular to an upper combined type power takeoff.
Background
In cold winter, ice coating easily occurs on part of power transmission lines in southern areas of China. Uneven ice coating on the conducting wire and the ground wire can cause the iron tower to incline or bend, when the design bearing capacity is exceeded, the conducting wire and the ground wire can be broken, hardware fittings can fall off, and the iron tower can be seriously collapsed. Unlike overhead ground wires, which can withstand partial freezing by the heat generated by the load current, the ice coating thickness is typically much greater than that of power transmission conductors.
In 2008, 1 month, iron tower collapse accidents caused by large-area icing of transmission lines in south of China are recently memorized.
In 2008, 2 months, a southern power grid technology research center organizes a customs group to perform feasibility research on an alternating current-direct current deicing scheme of alternating current-direct current transmission lines of various voltage classes of a southern power grid. Researches show that the ice melting of all incoming and outgoing lines of the hub substation can be realized by installing the ice melting direct-current device in the hub substation.
In 2013, a side-combined type ground wire ice melting automatic wiring device is jointly developed by a south grid ultra-high voltage transmission company, a China south electric power design institute and a Nanjing line equipment limited company, and is successfully installed in 500kV wiring in 11 and 12 months in 2013.
With the increasing use number of the automatic ground wire deicing wiring devices, the types of tower types of the installation devices are also gradually increased, and particularly in direct-current transmission line engineering, the following situations occur in an iron tower needing to be provided with the automatic ground wire deicing wiring devices: 1) The jumper string is long, about 8-9 meters; 2) The difference between the two cross arm lengths is large due to the turning angle.
For the cross arm with the arm length larger than the length of the jumper wire string, the scheme of the lateral combination type ground wire ice melting automatic wiring device is still adopted; and for short arm crossarms there is not enough space to install a side-to-side device. Therefore, aiming at the structural characteristics of the short arm cross arm, a proper ground wire ice melting automatic wiring device needs to be developed.
Disclosure of Invention
The technical problem to be solved by the invention is that for the short arm cross arm, enough space is not available for installing a proper ice melting device.
In order to solve the technical problems, the invention provides an upper-combined type electricity taking device which is used for an upper-combined type ground wire ice melting automatic wiring device and can effectively solve the problem of insufficient space of a short arm cross arm, wherein the upper-combined type ground wire ice melting automatic wiring device comprises a contact finger assembly, a guide plate, a protective cover, a wire clamp assembly, a corner joint and a connecting assembly;
the connecting components are arranged on two sides of the jumper suspension clamp body, and are connected with the jumper string on the basis of ensuring correct connection of an internal structure;
the corner connector is arranged at the lower end of the connecting assembly, the lower end of the corner connector is connected with the protective cover bottom plate through channel steel, the wire clamp assembly is further arranged on the protective cover bottom plate, the protective cover comprises a protective cover bottom plate, and the contact finger assembly and the guide plate are arranged inside the protective cover.
The upper combined electricity taking device is arranged on a jumper wire suspension clamp of an insulator jumper wire string and is used for obtaining current on a wire bundle and transmitting the current to the opening and closing electric conductor, wherein the upper part of a corner joint is connected with a connecting component, the lower part of the corner joint is connected with a channel steel on a bottom plate of a protective cover, the angle deflection between the upper combined electricity taking device and the jumper wire can be realized, the opening and closing electric conductor upwards rotates, and a contact of the opening and closing electric conductor is connected to the upper combined electricity taking device, so that the ice melting can be realized.
The contact finger assembly comprises a plurality of copper blocks which are arranged side by side at intervals, at least two contact fingers are symmetrically arranged on each copper block, threaded holes are formed in the positions, located between the two contact fingers, of the copper blocks and used for mounting the copper blocks, a kidney-shaped clamping groove is formed in each contact finger, a tension spring is arranged in each clamping groove through a pin shaft, and the tension springs are connected between the two opposite contact fingers;
the guide plate is arranged on the outer side of the contact finger assembly in a splayed shape;
the opening of the protective cover faces downwards, the protective cover is installed on the periphery of the guide plate and the contact finger assembly, the lower end of the guide plate is connected with the protective cover through a set screw, a protective cover bottom plate is fixedly connected with a channel steel on the outer side and a copper block on the inner side through fasteners, the outer side of the protective cover bottom plate is fixedly connected with a drainage wire of the wire clamp assembly in a clamping mode to obtain current, and the current is transmitted to the contact finger through the copper block which is fixedly connected;
the lower end of the corner connector is connected with the channel steel on the bottom plate of the protective cover, and the upper end of the corner connector is connected with the connecting assembly, so that the angle deflection between the contact finger and the jumper wire is realized.
The wire clamp assembly comprises a hinge type wire clamp and a drainage wire clamp, the drainage wire clamp is connected to the outer side of the bottom plate of the protective cover, and the other end of the drainage wire clamp is connected with the hinge type wire clamps through a plurality of wires respectively.
The contact finger assembly comprises contact fingers, a copper block, a pin shaft and a tension spring, the two contact fingers are arranged on two sides of the copper block to form a pair of contact fingers, overcurrent can be realized after the contact is correctly pushed, one or more pairs of contact fingers are in contact with the contact to overcurrent after the device is determined to be switched on according to the ice melting current requirement of a circuit, the contact fingers adopt a mode that the plurality of pairs of contact fingers are uniformly distributed at intervals, wherein the two pairs of contact fingers can be arranged on one copper block, and an interval is reserved between the copper block and the copper block.
One end of the wire clamp assembly obtains current on the wire through the hinge type wire clamp, the other end of the wire clamp assembly transmits the current out through the drainage wire clamp, and the middle of the wire clamp assembly is in current transition through the soft current wire; one end of the wire clamp assembly is connected with the bottom plate of the protective cover, and the other end of the wire clamp assembly is used for tightly holding the wires through a plurality of hinge type wire clamps to obtain ice melting current on the wire bundle.
The improved structure is characterized in that the contact finger is fixed on the copper block through a fixing nut positioned on the side face of the copper block, a clamp is arranged on the side face of the copper block through the fixing nut, an opening of each hinge-type wire clamp is fastened through a bolt and a nut, a sealing ring is arranged at the opening of each hinge-type wire clamp, and the sealing ring is positioned on the outer side of the bolt; the outer side of one end of each lead connected with the hinge type wire clamp is also provided with a protective sleeve, one end of each lead connected with the drainage wire clamp is also provided with a protective sleeve, and the protective sleeves are aluminum tubes; the corner joint is also provided with a puller structure, the puller structure comprises a puller bolt and a puller cover plate, the puller cover plate is arranged above the corner joint and props against the lower plane of the connecting assembly, the puller bolt is connected to an adjusting mechanism of the puller cover plate, and the puller bolt is used for adjusting the lifting of the puller cover plate; and the two sides of the connecting component are symmetrically provided with the weight pieces. The installation of a jacking structure can ensure the stability of switching-on, and a jacking bolt of the corner joint is adjusted to adjust the position of the jacking cover plate so as to jack the lower plane of the connecting assembly; and if the weight pieces are dry, the jumper string keeps the original weight, the wind deflection and the electrical requirements of the circuit design are met, and the contact fingers reach a balanced state.
The upper combined type ground wire ice melting automatic wiring device is used for acquiring current on a conductor bundle and transmitting the current to a ground wire, and the ground wire melts ice on the surface of the ground wire by utilizing the heat effect of the current. The upper combined type electricity taking device is used for an automatic wiring device for upper combined type ground wire ice melting, and is used when the arm length of a cross arm of an iron tower is smaller than the length of a jumper string in a power transmission line needing ground wire ice melting.
The invention relates to a structure scheme of a combined type power takeoff, which is designed aiming at a switching-on scheme of an automatic wiring device for melting ice on a ground wire and combining the characteristics of a jumper wire string and a jumper wire suspension clamp.
After the contact finger is closed with the contact of the opening and closing conductive device, the current on the upper closing electricity taking device is transmitted to the opening and closing conductive device. The relative displacement of the contact and the contact fingers may be changed due to the influence of natural factors, so that the contact fingers adopt a mode that a plurality of pairs of contact fingers are uniformly distributed at intervals aiming at the displacement of the contact and the contact fingers during closing, wherein two pairs of contact fingers are arranged on one copper block, an interval is reserved between the copper block and the copper block, and the number of the copper blocks is determined according to the deviation of the designed displacement.
The guide plate is arranged on the periphery of the contact finger. When the contact deviates from the center of the contact finger, the guide plate with the splayed opening guides the contact to be smoothly pushed into the center of the contact finger, so that the closing is correctly completed.
Due to the fact that the contact cannot be pushed in from the symmetrical centers of the multiple pairs of contact fingers when the contact is switched on due to various factors such as wind deflection, ice coating and the like, a splayed guide plate is designed on the periphery of the contact fingers, and when the contact deviates from the center, the contact is guided to be pushed into the contact fingers through the guide plate.
The protective cover is opened downwards, is arranged on the periphery of the guide plate and the contact finger and completely covers the guide plate and the contact finger, and is prevented from being attacked by rain, snow and ice. Meanwhile, the bottom plate of the protective cover also has the functions of overflowing and connecting.
The ice coating on the contact finger can influence the overcurrent effect, even the switch-on failure, and the ice coating on the guide plate can also influence the switch-on of the device. A protective cover with an opening facing the guide plate is arranged outside the guide plate. The protective cover is connected with the guide plate through the fastening screw, and even if the protective cover and the guide plate keep integrity, the stability of the guide plate is also improved. In addition, in order to keep the upper part of the protective cover sealed and avoid rainwater from entering, the bottom plate of the protective cover is made of an aluminum plate and has a certain thickness, so that the requirement of ice melting current is met. Through the fastener with the protection casing with the channel-section steel in the outside, the copper billet zonulae occludens of inboard, the protection casing bottom plate outside still obtains the electric current with the drainage fastener zonulae occludens of fastener subassembly simultaneously, passes to the electric current through the copper billet of closely laminating and touches the finger.
One end of the wire clamp assembly is connected with the bottom plate of the protective cover, and the other end of the wire clamp assembly is used for tightly holding the wires through a plurality of hinge type wire clamps to obtain ice melting current on the wire bundle. The wire clamp adopts a hinge type structure, and the fastener nut adopts a mode of being embedded into the wire clamp body, so that the installation is convenient. The number of the wire clamps is consistent with that of the jumper wires, and the jumper wires can be installed at proper positions on site according to installation requirements.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a top view of the present invention with the connecting member and weight plate removed;
FIG. 4 is a front view of the finger assembly, guide plate and shield of the present invention;
FIG. 5 is a left side view of the finger assembly, guide plate and shield of the present invention;
FIG. 6 is a top plan view of the finger assembly, guide plate and shield of the present invention;
FIG. 7 is a schematic structural diagram of a finger assembly of the present invention;
FIG. 8 is a schematic structural view of the wire clamp assembly of the present invention;
the novel jumper wire clip comprises a guide plate 1, a protective cover 2, a protective cover 3, a protective cover bottom plate 4, a corner joint 5, a connecting assembly 6, a jumper wire suspension wire clip body 7, a channel steel 8, a copper block 9, a contact finger 10, a clamp groove 11, a pin shaft 12, a tension spring 13, a drainage wire clip 14, a hinge type wire clip 15, a sealing ring 16, a protective sleeve 17, a puller bolt 18, a puller cover plate 19 and a counterweight sheet 20.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in the figure, the upper combined electricity taking device is used for an upper combined type ground wire ice melting automatic wiring device, can effectively solve the problem of insufficient space of a short arm cross arm, and comprises a contact finger assembly, a guide plate 1, a protective cover 2, a wire clamp assembly, a corner joint 4 and a connecting assembly 5;
the connecting components 5 are arranged on two sides of the jumper wire suspension clamp body 6, and are connected with the jumper wire string on the basis of ensuring correct connection of an internal structure;
the corner connects 4 and installs at 5 lower extremes of coupling assembling, and the corner connects 4 lower extremes and passes through channel-section steel 7 and be connected with protection casing bottom plate 3, still installs the cable clamp subassembly on protection casing bottom plate 3, and protection casing 2 includes protection casing bottom plate 3, is provided with in protection casing 2 inside and touches and indicates subassembly and deflector 1.
The contact finger assembly comprises a plurality of copper blocks 8 which are arranged side by side at intervals, at least two contact fingers 9 are symmetrically arranged on each copper block 8, a threaded hole is formed in the position, located between the two contact fingers 9, of each copper block 8 and used for installing the copper block 8, a waist-shaped clamping groove 11 is formed in each contact finger 9, a tension spring 13 is installed in each clamping groove 11 through a pin shaft 12, and the tension spring 13 is connected between the two opposite contact fingers 9;
the guide plate 1 is arranged on the outer side of the contact finger assembly in a splayed shape, and the guide plate 1 is fixed on the copper block 8;
the protective cover 2 is provided with a downward opening and is arranged at the periphery of the guide plate 1 and the contact finger assembly, a protective cover bottom plate 3 of the protective cover 2 is fixedly connected with a copper block 8 of the contact finger assembly, the lower end of the guide plate 1 is connected with the protective cover 2 through a set screw, the protective cover bottom plate 3 is fixedly connected with a channel steel 7 at the outer side and the copper block 8 at the inner side through fasteners, meanwhile, the outer side of the protective cover bottom plate 3 is also fixedly connected with a drainage wire clamp 14 of the wire clamp assembly to obtain current, and the current is transmitted to a contact finger 9 through the copper block 8 fixedly connected with the protective cover bottom plate 3;
the lower end of the corner connector 4 is connected with a channel steel 7 on the protective cover bottom plate 3, and the upper end of the corner connector is connected with the connecting component 5, so that the angle deflection between the contact finger 9 and the jumper wire is realized.
The wire clamp assembly comprises a hinge type wire clamp 15 and a drainage wire clamp 14, the drainage wire clamp 14 is connected to the outer side of the protective cover bottom plate 3, and the other end of the drainage wire clamp 14 is respectively connected with the hinge type wire clamps 15 through a plurality of conducting wires.
Further, the contact finger 9 is fixed on the copper block 8 through a fixing nut located on the side face of the copper block 8, a clamp 10 is installed on the side face of the copper block 8 through the fixing nut, an opening of each hinge type wire clamp 15 is fastened through a bolt and a nut, a sealing ring 16 is arranged at the opening of each hinge type wire clamp 15, and the sealing ring 16 is located on the outer side of the bolt; the outer side of one end of each lead connected with the hinge-type wire clamp 16 is also provided with a protective sleeve 17, one end of each lead connected with the drainage wire clamp 14 is also provided with a protective sleeve 17, and the protective sleeve 17 is an aluminum pipe; the corner joint 4 is also provided with a puller structure, the puller structure comprises a puller bolt 18 and a puller cover plate 19, the puller cover plate 19 is arranged above the corner joint 4 to prop against the lower plane of the connecting component 5, the puller bolt 18 is connected to an adjusting mechanism of the puller cover plate 19, and the puller bolt 18 is used for adjusting the lifting of the puller cover plate 19; a plurality of weight plates 20 are symmetrically arranged on both sides of the connecting component 5.
The upper combined type electricity taking device is arranged on a jumper wire suspension clamp of an insulator jumper wire string and is used for acquiring current on a conductor bundle and transmitting the current to an opening and closing conductor, wherein the upper part of a corner joint is connected with a connecting component, the lower part of the corner joint is connected with channel steel on a bottom plate of a protective cover, the angle deflection between the upper combined type electricity taking device and the jumper wire can be realized, the opening and closing conductor rotates upwards, and a contact of the opening and closing conductor is connected to the upper combined type electricity taking device, so that the ice melting can be realized.
The contact finger assembly comprises contact fingers, a copper block, a pin shaft and a tension spring, the two contact fingers are arranged on two sides of the copper block to form a pair of contact fingers, overcurrent can be realized after the contact is correctly pushed, one or more pairs of contact fingers are determined to be in contact with the contact for overcurrent after the device is switched on according to the requirement of ice melting current of a circuit, the contact fingers adopt a mode that the plurality of pairs of contact fingers are uniformly distributed at intervals, wherein the two pairs of contact fingers can be arranged on one copper block, and an interval is reserved between the copper block and the copper block.
One end of the wire clamp assembly obtains current on the wire through the hinge type wire clamp, the other end of the wire clamp assembly transmits the current out through the drainage wire clamp, and the middle of the wire clamp assembly is in current transition through the soft current wire; one end of the wire clamp assembly is connected with the bottom plate of the protective cover, and the other end of the wire clamp assembly is used for tightly holding the wires through a plurality of hinge type wire clamps to obtain ice melting current on the wire bundle.
The installation of a jacking structure can ensure the stability of switching-on, and a jacking bolt of the corner joint is adjusted to adjust the position of the jacking cover plate so as to jack the lower plane of the connecting assembly; and a plurality of dry weight sheets are arranged on two sides of the connecting component, so that the jumper string keeps the original weight, the wind deflection and electrical requirements of circuit design are met, and the contact fingers reach a balanced state.
The upper combined type ground wire ice melting automatic wiring device is used for acquiring current on a conductor bundle and transmitting the current to the ground wire, and the ground wire is used for melting ice on the surface of the ground wire by utilizing the heat effect of the current. The upper combined type electricity taking device is used for an automatic wiring device for ice melting of an upper combined type ground wire, and is adopted when the arm length of a cross arm of an iron tower is smaller than the length of a jumper string in a power transmission line needing ice melting of the ground wire.
The invention relates to a structure scheme of a combined type power takeoff, which is designed aiming at a switching-on scheme of an automatic wiring device for melting ice on a ground wire and combining the characteristics of a jumper wire string and a jumper wire suspension clamp.
After the contact finger is closed with the contact of the opening and closing conductive device, the current on the upper closing electricity taking device is transmitted to the opening and closing conductive device. The relative displacement of the contact and the contact fingers may be changed due to the influence of natural factors, so that the contact fingers adopt a mode that a plurality of pairs of contact fingers are uniformly distributed at intervals aiming at the displacement of the contact and the contact fingers during closing, wherein two pairs of contact fingers are arranged on one copper block, an interval is reserved between the copper block and the copper block, and the number of the copper blocks is determined according to the deviation of the designed displacement.
The guide plate is arranged on the periphery of the contact finger. When the contact deviates from the center of the contact finger during closing, the guide plate with the splayed opening guides the contact to be smoothly pushed into the center of the contact finger, and closing is correctly completed.
Due to the fact that the contact cannot be pushed in from the symmetrical centers of the multiple pairs of contact fingers when the contact is switched on due to various factors such as wind deflection, ice coating and the like, a splayed guide plate is designed on the periphery of the contact fingers, and when the contact deviates from the center, the contact is guided to be pushed into the contact fingers through the guide plate.
The protective cover is arranged at the periphery of the guide plate and the contact fingers with an opening facing downwards and completely covers the guide plate and the contact fingers, so that the protective cover is prevented from being attacked by rain, snow and ice. Meanwhile, the bottom plate of the protective cover also has the functions of overflowing and connecting.
Icing on the contact finger can influence the overcurrent effect, even the switching-on failure, and icing on the guide plate can also influence the switching-on of the device. A protective cover with an opening facing the guide plate is arranged outside the guide plate. The protective cover is connected with the guide plate through the fastening screws, and even if the protective cover and the guide plate keep integrity, the stability of the guide plate is also improved. In addition, in order to keep the upper part of the protective cover sealed and avoid rainwater from entering, the bottom plate of the protective cover is made of an aluminum plate and has a certain thickness, so that the requirement of ice melting current is met. The protective cover is tightly connected with the channel steel on the outer side and the copper block on the inner side through the fastener, the current is obtained by the tight connection of the protective cover and the drainage wire clamp of the wire clamp assembly on the outer side of the bottom plate of the protective cover, and the current is transmitted to the touch finger through the tightly attached copper block.
One end of the wire clamp assembly is connected with the bottom plate of the protective cover, and the other end of the wire clamp assembly is used for tightly holding the wires through a plurality of hinge type wire clamps to obtain ice melting current on the wire bundle. The wire clamp adopts a hinge structure, and the fastener nut adopts a mode of being embedded into the wire clamp body, so that the installation is convenient. The number of the wire clamps is consistent with that of the jumper wires, and the jumper wires can be installed at proper positions on site according to installation requirements.
The upper combined electricity taking device is matched with the opening and closing conductive device of the upper combined ground wire ice melting automatic wiring device for use, and after the upper combined ground wire ice melting automatic wiring device is closed in place, the contact of the opening and closing conductive device is pushed into the contact finger structure to be in contact fit with one or more pairs of contact fingers. The number of pairs of contact fingers matched with the contact is determined by the ice melting current of the circuit. Considering that wind deflection, ice coating and other factors can cause deviation of the displacement of the upper combined type power takeoff from the tower body, the touch fingers are arranged at intervals, and the logarithm of the touch fingers is designed according to the displacement deviation range.
The guide plate is arranged on the periphery of the contact finger and is in a splayed shape. The factors such as wind deflection and ice coating can cause jumper wire deflection, so that the position of the upper combined type power takeoff generates displacement deviation along the direction of the jumper wire. When the contact deviates from the center of the contact finger, the guide plate with the splayed opening guides the contact to be smoothly pushed into the center of the contact finger, and the closing is finished.
The protective cover is opened downwards and is arranged on the periphery of the guide plate and the contact finger. Except the face with the opening facing downwards, other faces are completely closed, and the guide plate and the contact fingers are completely covered in the face, so that rain and snow can be effectively prevented from being invaded by freezing. Meanwhile, the inner side of the protective cover is tightly connected with the copper block of the contact finger structure, and the outer side of the protective cover is connected with the wire clamp assembly, so that current obtained from the wire bundle is transmitted to the contact finger structure. In addition, the channel steel is designed on the outer side of the bottom plate of the protective cover, and connection points are provided for the contact finger assemblies and the corner connectors.
The wire clamp assembly grips the wires through a plurality of hinge type wire clamps to obtain ice melting current on the wire bundle; and a drainage plate of a drainage wire clamp of the wire clamp assembly is fixedly connected with a bottom plate of the protective cover to transmit the acquired current.
After the heavy hammer pieces on two sides of the jumper suspension clamp in the jumper string are removed, the connecting components are installed on two sides of the heavy hammer pieces, so that the upper combined type power takeoff and the jumper string are connected. And a corner joint is arranged between the connecting component and the protective cover for connection and transition. According to the switching-on requirement of the upper combined type ground wire ice melting automatic wiring device, the opening direction of the contact finger needs to form a certain included angle with the direction of the jumper wire. After the corner connector is installed, the requirement for the included angle between the opening direction of the contact finger structure and the jumper is met.
The upper combined electricity taking device is arranged behind the jumper string, can meet the windage yaw requirement and the electrical performance requirement of a circuit, and is provided with a plurality of heavy hammer pieces, so that not only can the weight of the jumper string reach the design requirement, but also the contact fingers can reach a balanced state.
When the jumper wire suspension clamp is installed, the heavy hammer pieces on the two sides of the jumper wire suspension clamp are firstly dismantled, then the connecting component and the heavy hammer pieces designed for the jumper wire suspension clamp are installed on the two sides of the jumper wire suspension clamp body, and then the corner joint and the connecting piece are connected according to the deflection angle direction of the field device and the jumper wire. After the connection, the position of the jacking cover plate is adjusted by adjusting the jacking bolt of the corner joint, so that the jacking cover plate can jack the lower plane of the connection assembly. And then, connecting the part containing the contact finger assembly, the guide plate and the protective cover with the corner joint through channel steel. And finally, installing a wire clamp assembly, and installing a hinge type wire clamp at a proper position on the jumper according to the field condition so as to enable the hinge type wire clamp to grip the lead to obtain the current on the lead bundle.
In order to enable the structure of the invention to be simple and compact, the copper block of the contact finger assembly is not only required to be assembled with the contact finger, but also provided with a protective cover, a connection threaded hole of channel steel and a mounting threaded hole of a guide plate, and the channel steel is fixedly connected with a protective cover bottom plate and the copper block into a whole. In order to facilitate the installation of the guide plate in a limited space, the guide plate is designed into an integral structure, is sleeved in the installed touch finger assembly and is connected through a fastener. After the guide plate is installed, the guide plate and the protective cover are fixedly connected through the fastening screws.
One end of the soft aluminum wire of the wire clamp assembly is connected with the aluminum pipe in a compression joint mode and then welded on the wire clamp body, the size of the pressing die does not need to be reserved for the aluminum pipe, two or more soft aluminum wires at the other end are connected in a compression joint mode in the aluminum pipe of the same drainage wire clamp, materials are saved, and the structure of the wire clamp assembly is simple. The soft aluminum wire not only achieves the overcurrent effect, but also enables the wire clamp to select the best position to be installed according to the field condition. The fastener adopts hinge type structure, and the nut of fastener directly imbeds the fastener body, simple to operate, still installs the sealing washer on the bolt, and the accident of fastener drops when preventing to install.
Claims (6)
1. Go up box-like electricity getting device, its characterized in that: the device comprises a contact finger assembly, a guide plate, a protective cover, a wire clamp assembly, a corner joint and a connecting assembly;
the connecting components are arranged on two sides of the jumper wire suspension clamp body to realize connection with the jumper wire string;
the lower end of the corner joint is connected with a protective cover bottom plate through channel steel, a wire clamp assembly is further mounted on the protective cover bottom plate, the protective cover comprises a protective cover bottom plate, and a contact finger assembly and a guide plate are arranged in the protective cover;
the contact finger assembly comprises a plurality of copper blocks which are arranged side by side at intervals, at least two contact fingers are symmetrically arranged on each copper block, a threaded hole is formed in the position, located between the two contact fingers, of each copper block and used for installing the copper block, a waist-shaped clamping groove is formed in each contact finger, a tension spring is arranged in each clamping groove through a pin shaft and connected between the two opposite contact fingers;
the guide plate is arranged on the outer side of the contact finger assembly in a splayed shape;
the opening of the protective cover faces downwards, the protective cover is installed on the periphery of the guide plate and the contact finger assembly, the lower end of the guide plate is connected with the protective cover through a set screw, a protective cover bottom plate is fixedly connected with a channel steel on the outer side and a copper block on the inner side through fasteners, the outer side of the protective cover bottom plate is fixedly connected with a drainage wire of the wire clamp assembly in a clamping mode to obtain current, and the current is transmitted to the contact finger through the copper block which is fixedly connected;
the lower end of the corner joint is connected with channel steel on the bottom plate of the protective cover, and the upper end of the corner joint is connected with the connecting assembly, so that the angle deflection between the contact finger and the jumper wire is realized;
the wire clamp assembly comprises a hinge type wire clamp and a drainage wire clamp, the drainage wire clamp is connected to the outer side of the bottom plate of the protective cover, and the other end of the drainage wire clamp is connected with the hinge type wire clamps through a plurality of wires respectively.
2. The box-type power takeoff device according to claim 1, wherein: the contact finger is fixed on the copper block through a fixing nut positioned on the side face of the copper block, and a clamp is arranged on the side face of the copper block through the fixing nut.
3. The box-type power take-off as claimed in claim 2, wherein: the opening of each hinge type wire clamp is fastened through a bolt and a nut, a sealing ring is arranged at the opening of each hinge type wire clamp, and the sealing ring is located on the outer side of the bolt.
4. The box-type power takeoff device according to claim 2 or 3, wherein: the outer side of one end of the lead connected with the hinge type wire clamp is also provided with a protective sleeve, and one end of the plurality of leads connected with the drainage wire clamp is also provided with a protective sleeve.
5. The box-type power takeoff device according to claim 4, wherein: the corner connector is further provided with a jacking structure, the jacking structure comprises a jacking bolt and a jacking cover plate, the jacking cover plate is arranged above the corner connector and jacks the lower plane of the connecting assembly, the jacking bolt is connected to an adjusting mechanism of the jacking cover plate, and the jacking cover plate is adjusted to lift through the jacking bolt.
6. The top box power extractor of claim 5, wherein: and the two sides of the connecting component are symmetrically provided with the weight pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710094956.6A CN107302204B (en) | 2017-02-22 | 2017-02-22 | Upper combined electricity taking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710094956.6A CN107302204B (en) | 2017-02-22 | 2017-02-22 | Upper combined electricity taking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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| CN107302204B true CN107302204B (en) | 2022-10-14 |
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| CN201710094956.6A Active CN107302204B (en) | 2017-02-22 | 2017-02-22 | Upper combined electricity taking device |
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| CN110048283A (en) * | 2019-05-30 | 2019-07-23 | 中国能源建设集团南京线路器材有限公司 | Cage jumper electricity getting device |
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| CN101431224A (en) * | 2008-12-12 | 2009-05-13 | 武汉大学 | De-icing technology for overhead transmission line |
| CN203658445U (en) * | 2014-01-17 | 2014-06-18 | 北京迪安瑞科电力技术有限公司 | Current collecting and indicating device used for overhead line |
| CN105226596A (en) * | 2014-06-16 | 2016-01-06 | 南京电力金具设计研究院有限公司 | A kind of electricity getting device for ground wire deicing automatic connection device |
| CN105322493A (en) * | 2014-06-16 | 2016-02-10 | 中国南方电网有限责任公司超高压输电公司 | Ground wire ice melting automatic wiring device |
| CN206775078U (en) * | 2017-02-22 | 2017-12-19 | 中国能源建设集团南京线路器材有限公司 | Upper box-like electricity getting device |
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| CN101431224A (en) * | 2008-12-12 | 2009-05-13 | 武汉大学 | De-icing technology for overhead transmission line |
| CN203658445U (en) * | 2014-01-17 | 2014-06-18 | 北京迪安瑞科电力技术有限公司 | Current collecting and indicating device used for overhead line |
| CN105226596A (en) * | 2014-06-16 | 2016-01-06 | 南京电力金具设计研究院有限公司 | A kind of electricity getting device for ground wire deicing automatic connection device |
| CN105322493A (en) * | 2014-06-16 | 2016-02-10 | 中国南方电网有限责任公司超高压输电公司 | Ground wire ice melting automatic wiring device |
| CN206775078U (en) * | 2017-02-22 | 2017-12-19 | 中国能源建设集团南京线路器材有限公司 | Upper box-like electricity getting device |
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