CN110752548B - Device for replacing +/-800 kV transmission line conductor spacer and use method - Google Patents
Device for replacing +/-800 kV transmission line conductor spacer and use method Download PDFInfo
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- CN110752548B CN110752548B CN201911202024.4A CN201911202024A CN110752548B CN 110752548 B CN110752548 B CN 110752548B CN 201911202024 A CN201911202024 A CN 201911202024A CN 110752548 B CN110752548 B CN 110752548B
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- transverse shaft
- connecting rod
- shaft
- lower transverse
- upper transverse
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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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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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
- H02G7/12—Devices for maintaining distance between parallel conductors, e.g. spacer
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Abstract
The invention discloses a device for replacing a conductor spacer of a +/-800 kV power transmission line and a use method, wherein the device comprises an upper transverse shaft, a middle vertical shaft, a lower transverse shaft, a grapple, an elastic piece and a connecting rod structure; the upper transverse shaft and the lower transverse shaft are connected through a middle vertical shaft, and the upper transverse shaft, the middle vertical shaft and the lower transverse shaft are all screw rods; the two ends of the upper transverse shaft and the lower transverse shaft are connected through a connecting rod structure, the connecting rod structure comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with the second connecting rod, the other end of the first connecting rod is hinged with the end of the upper transverse shaft, one end of the second connecting rod is hinged with the first connecting rod, and the other end of the second connecting rod is hinged with the end of the lower transverse shaft; the 2 ends of the upper transverse shaft, the 2 ends of the lower transverse shaft and the hinge joint of the first connecting rod and the second connecting rod are respectively provided with a grapple and an elastic piece. The problems that when the conductor spacer of the +/-800 kV power transmission line breaks down and needs to carry out electric power overhaul work, 2 operators are required to take time and labor to carry out spacer overhaul work are solved.
Description
Technical Field
The invention relates to the technical field of power transmission line overhaul, in particular to a device for replacing a +/-800 kV power transmission line conductor spacer and a using method thereof.
Background
The ultra-high voltage transmission line has the characteristics of large transmission capacity, large line span, large tonnage of insulators and the like. Six split conductors are generally adopted for +/-800 kV power transmission lines, spacing bars are generally adopted between the split conductors to fix and control the spacing, so that mutual whip between sub-conductors is prevented, and breeze vibration and secondary span vibration are restrained.
The spacer should generally have sufficient grip to not allow loosening during long-term operation and overall strength must withstand the centripetal force of the split wire and fatigue under long-term vibration during line shorts. The spacer is in the coupling field of electric field and force field for a long time, is easy to slip or damage, and can have a certain influence on the safe operation of the circuit after the spacer slips or is damaged.
At present, no special tool for replacing the conductor spacer of the +/-800 kV transmission line exists in the electric power inspection and repair industry, if the conductor spacer of the +/-800 kV transmission line needs to be replaced and repaired, 2 operators need to cooperate with each other to spend about forty minutes for replacing, the whole repair process is time-consuming and labor-consuming, the physical consumption of the operators is huge, and the electric power repair safety and the operation efficiency are seriously reduced.
Disclosure of Invention
The invention aims to provide a device for replacing a conductor spacer of a +/-800 kV power transmission line, and solves the problems that when the conductor spacer of the +/-800 kV power transmission line breaks down and needs to be subjected to electric power overhaul, 2 operators are required to take time and labor to carry out the overhaul of the conductor spacer, and the time and the labor are wasted.
In addition, the invention also provides a using method of the device.
The invention is realized by the following technical scheme:
the device for replacing the conductor spacer of the +/-800 kV power transmission line comprises an upper transverse shaft, a middle vertical shaft, a lower transverse shaft, a grapple, an elastic piece and a connecting rod structure;
the upper transverse shaft and the lower transverse shaft are arranged in parallel, the upper transverse shaft and the lower transverse shaft are connected through a middle vertical shaft, and the upper transverse shaft, the middle vertical shaft and the lower transverse shaft are all screw rods;
the two ends of the upper transverse shaft and the lower transverse shaft are connected through a connecting rod structure, the connecting rod structure comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with the second connecting rod, the other end of the first connecting rod is hinged with the end of the upper transverse shaft, one end of the second connecting rod is hinged with the first connecting rod, and the other end of the second connecting rod is hinged with the end of the lower transverse shaft;
the two ends of the upper transverse shaft, the two ends of the lower transverse shaft and the hinge joint of the first connecting rod and the second connecting rod are respectively provided with a grapple and an elastic piece; the 6 grapples are respectively matched with six split conductors, and the end parts of the 6 elastic pieces are connected with the middle vertical shaft.
The special tool disclosed by the invention can be used for six-split wires, and can also be used for similar linear objects or devices distributed in a regular hexagon, and the regular hexagon is required to be fixed for maintenance or installation.
The screw rod is in the prior art, the lengths of the upper transverse shaft, the middle vertical shaft and the lower transverse shaft can be adjusted by adjusting the screw rod, the hinging mode is a common connecting mode in the mechanical field, and the angle of a hexagon formed by the upper transverse shaft, the connecting rod structure and the lower transverse shaft can be adjusted by matching with an elastic piece.
According to the invention, the upper cross shaft, the connecting rod structure, the lower cross shaft and the 6 elastic pieces form a six-axis spring balance system together, so that the balance of an internal system of a tool is maintained, a hexagon formed by wires is always a regular hexagon, the lengths of the upper cross shaft, the middle vertical shaft and the lower cross shaft are regulated, the automatic alignment of two middle grapples is realized by utilizing the geometric principle of the regular hexagon, and as the six split wires are uniformly distributed, 6 grapples respectively grasp circles formed by planes of the six split wires, the six grapples are also uniformly distributed on the circles, the mechanical principle that the upper cross shaft, the middle vertical shaft and the lower cross shaft convert rotary motion into linear motion is converted into axial repeated acting force, and the load in the vertical direction of the wires is transferred through a lead screw, so that the maintenance work of the spacer is completed.
The invention mainly solves the problems that when the conductor spacer of the +/-800 kV power transmission line breaks down and needs to carry out electric power overhaul work, 2 operators are required to take time and labor to carry out the spacer overhaul work, and the time and the labor are wasted. Meanwhile, the method has the following advantages:
1. the invention skillfully moves the mechanical principle that the screw rod converts rotary motion into linear motion, converts torque into axial repeated acting force, has the characteristics of reversibility and high efficiency, and can effectively control the distance between the wires.
2. According to the invention, by adopting the six-axis balance system and skillfully utilizing the balance principle in mechanics, the situation that the tool is unbalanced in tightening or stretching Guo Zhongcheng is realized through the six-axis spring system, so that six grapples are always positioned on the circle center which takes the center of the six grapples as the circle center and takes the spring shaft as the radius, 6 grapples are evenly distributed, and the central angle of the circular arc between each grapple is 60 degrees, so that the balance of the invention is further ensured.
Further, the screw is an electric motor screw.
The motor lead screw is of the prior art.
Further, the electric motor lead screw comprises a lead screw rod body and a lead screw adjuster arranged on the lead screw rod body, the lead screw adjuster is used for adjusting the length of the upper transverse shaft, the middle vertical shaft and the lower transverse shaft, two ends of the middle vertical shaft are respectively connected with the lead screw adjuster of the upper transverse shaft and the lower transverse shaft, and the ends of the 6 elastic pieces are connected with the lead screw adjuster.
Further, a lithium battery and an electric motor are arranged in the lead screw regulator, a control circuit is further arranged in the lead screw regulator, the output end of the lithium battery is electrically connected with the control circuit through an electric filter, and the control circuit is provided with a function of controlling the electric motor.
The electric motor can rotate forward and backward, the length of the screw rod is adjusted by rotating the electric motor, and the lithium battery provides power for the electric motor.
By adopting measures such as an electric filter, the lithium battery and the motor can be ensured to normally operate in various environments, and the reliability of the device is further improved.
Further, a display screen and an operation button are arranged on the outer wall of the screw rod adjuster.
The display screen is used for displaying related data of tools and instruments, including related electric quantity of the tools and instruments, temperature and humidity of the environment, real-time length of a screw, time and the like, and the operation buttons are used for controlling forward rotation and reverse rotation of the electric motor and starting and stopping.
The tool carries out real-time monitoring on the battery power, the internal circuit, the environment condition, the length of the shaft lever and the like of the tool in real time by arranging the digital electronic display screen, and a user controls the tool in real time through the digital display screen, so that the tool is in an optimal state at any time, and the service performance of the tool is guaranteed.
Further, the connection mode of the hinging positions of the grapple and the hinging positions of the 2 end parts of the upper transverse shaft, the 2 end parts of the lower transverse shaft and the first connecting rod and the second connecting rod are all hinged.
Further, the outer wall of the grapple is provided with an insulating layer.
Further, the insulating layer is made of epoxy resin.
The epoxy resin is of the prior art and can be insulated.
Further, the elastic member is a spring.
The application method of the device for replacing the +/-800 kV power transmission line conductor spacer comprises the following steps of:
step 1), checking the device before use;
step 2), adjusting the lengths of an upper transverse shaft, a middle vertical shaft and a lower transverse shaft to proper positions by adjusting a screw rod;
step 3), the device is installed at a proper position near the original spacer rod of the six-split conductor, 6 grapples are respectively hung on the six-split conductor, and if the lengths of the upper transverse shaft, the middle vertical shaft and the lower transverse shaft are not proper, the step 2) is repeated;
step 4), pre-tightening the screw rod after the installation is completed, checking after the pre-tightening, and continuing after confirming that no error exists;
step 5), continuously tightening the lead screw to a proper position, and installing a new spacer at a required position;
step 6), installing the spacing rod in place through adjusting a screw rod;
and 7) loosening the screw rod to a proper position after confirming that the spacer rod is installed in place and the stress is normal, and taking out the device.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention solves the problems that when the conductor spacer of the +/-800 kV power transmission line breaks down and needs to carry out electric power overhaul, 2 operators are required to take time and labor to carry out the overhaul of the conductor spacer.
2. The invention skillfully moves the mechanical principle that the screw rod converts rotary motion into linear motion, converts torque into axial repeated acting force, has the characteristics of reversibility and high efficiency, and can effectively control the distance between the wires.
3. According to the invention, by adopting the six-axis balance system and skillfully utilizing the balance principle in mechanics, the situation that the tool is unbalanced in tightening or stretching Guo Zhongcheng is realized through the six-axis spring system, so that six grapples are always positioned on the circle center which takes the center of the six grapples as the circle center and takes the spring shaft as the radius, 6 grapples are evenly distributed, and the central angle of the circular arc between each grapple is 60 degrees, so that the balance of the invention is further ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a schematic diagram of a specific tool according to the present invention;
FIG. 2 is an internal structural view of the motor;
FIG. 3 is a diagram of a DC motor forward and reverse rotation control circuit;
FIG. 4 is a diagrammatic view of a bandpass filter map;
fig. 5 is a block diagram of the operation of the sensor and display screen.
In the drawings, the reference numerals and corresponding part names:
1-upper cross shaft, 2-middle vertical shaft, 3-lower cross shaft, 4-grapple, 5-elastic piece, 6-first connecting rod, 7-second connecting rod, 8-lead screw regulator, 9-display screen.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Examples:
as shown in fig. 1, the device for replacing the conductor spacer of the +/-800 kV power transmission line comprises an upper transverse shaft 1, a middle vertical shaft 2, a lower transverse shaft 3, a grapple 4, an elastic piece 5 and a connecting rod structure;
the upper transverse shaft 1 and the lower transverse shaft 3 are arranged in parallel, the upper transverse shaft 1 and the lower transverse shaft 3 are connected through a middle vertical shaft 2, and the upper transverse shaft 1, the middle vertical shaft 2 and the lower transverse shaft 3 are all screw rods;
the two ends of the upper transverse shaft 1 and the lower transverse shaft 3 are connected through a connecting rod structure, the connecting rod structure comprises a first connecting rod 6 and a second connecting rod 7, one end of the first connecting rod 6 is hinged with the second connecting rod 7, the other end of the first connecting rod is hinged with the end of the upper transverse shaft 1, one end of the second connecting rod 7 is hinged with the first connecting rod 6, and the other end of the second connecting rod is hinged with the end of the lower transverse shaft 3;
the 2 end parts of the upper transverse shaft 1, the 2 end parts of the lower transverse shaft 3 and the hinge parts of the first connecting rod 6 and the second connecting rod 7 are hinged with a grapple 4 and an elastic piece 5; the 6 grapples 4 are respectively matched with six split conductors, the end parts of the 6 elastic pieces 5 are connected with the middle vertical shaft 2, and the elastic pieces 5 are springs;
specifically, the screw is an electric motor screw, the electric motor screw comprises a screw rod body and a screw rod adjuster 8 arranged on the screw rod body, the screw rod adjuster 8 is used for adjusting the lengths of an upper transverse shaft 1, a middle vertical shaft 2 and a lower transverse shaft 3, two ends of the middle vertical shaft 2 are respectively connected with the screw rod adjuster 8 of the upper transverse shaft 1 and the lower transverse shaft 3, the ends of 6 elastic pieces 5 are connected with the screw rod adjuster 8, a lithium battery and an electric motor are arranged in the screw rod adjuster 8, a control circuit is further arranged in the screw rod adjuster 8, the output end of the lithium battery is electrically connected with the control circuit through an electric filter, the control circuit is provided with a display screen 9 and an operation button, and the outer wall of the screw rod adjuster 8 is provided with the control of the electric motor; an insulating layer is arranged on the outer wall of the grapple 4; the insulating layer is made of epoxy resin.
According to the embodiment, the lithium battery is used for supplying power to the motor, so that the motor rotates to provide rotary motion (including forward rotation and reverse rotation) for the screw rod, and the lithium battery and the motor can normally operate in various environments by adopting measures such as an internal shielding net, an electric filter and symmetrical winding connection, so that the reliability of the device is further improved.
The embodiment adopts a 775 motor, large torsion, 24V safety voltage, no-load current of about 0.4A, blocking current of about 4A, no-load power of about 9.6W, motor steering support forward and reverse rotation, motor diameter of 50mm, step height of 5mm, step diameter of 18mm, motor shaft length of 20mm and motor weight of about 200g. The structure is shown in fig. 2; the direct current motor positive and negative rotation control circuit is as shown in fig. 3, the band-pass filtering illustration is as shown in fig. 4, the embodiment is also provided with a length sensor, a temperature sensor, a humidity sensor and an electric quantity sensor in a matched mode, the electric quantity sensor is used for sensing the electric quantity of a lithium battery in real time, the length sensor is used for sensing the length of a lead screw, the temperature sensor and the humidity sensor are respectively used for sensing the temperature and the humidity of a working environment, the sensor and a display screen work block diagram is as shown in fig. 5, the display screen adopts a liquid crystal display screen, and the liquid crystal display screen is the prior art.
The working procedure of this embodiment is as follows:
and 7, after the spacer is confirmed to be installed in place and stressed normally, loosening the screw rod of the electric motor to a proper position, and taking out the tool.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. The device for replacing the +/-800 kV transmission line conductor spacer is characterized by comprising an upper transverse shaft (1), a middle vertical shaft (2), a lower transverse shaft (3), a grapple (4), an elastic piece (5) and a connecting rod structure;
the upper transverse shaft (1) and the lower transverse shaft (3) are arranged in parallel, the upper transverse shaft (1) and the lower transverse shaft (3) are connected through a middle vertical shaft (2), and the upper transverse shaft (1), the middle vertical shaft (2) and the lower transverse shaft (3) are all screw rods;
the two ends of the upper transverse shaft (1) and the lower transverse shaft (3) are connected through a connecting rod structure, the connecting rod structure comprises a first connecting rod (6) and a second connecting rod (7), one end of the first connecting rod (6) is hinged with the second connecting rod (7), the other end of the first connecting rod is hinged with the end of the upper transverse shaft (1), one end of the second connecting rod (7) is hinged with the first connecting rod (6), and the other end of the second connecting rod is hinged with the end of the lower transverse shaft (3);
the two ends of the upper transverse shaft (1), the two ends of the lower transverse shaft (3) and the hinge joint of the first connecting rod (6) and the second connecting rod (7) are respectively provided with a grapple (4) and an elastic piece (5); the 6 grapples (4) are respectively matched with six split conductors, and the end parts of the 6 elastic pieces (5) are connected with the middle vertical shaft (2); the screw is an electric motor screw;
the electric motor lead screw comprises a lead screw rod body and a lead screw adjuster (8) arranged on the lead screw rod body, the lead screw adjuster (8) is used for realizing the length adjustment of an upper transverse shaft (1), a middle vertical shaft (2) and a lower transverse shaft (3), two ends of the middle vertical shaft (2) are respectively connected with the lead screw adjuster (8) of the upper transverse shaft (1) and the lower transverse shaft (3), and the ends of the 6 elastic pieces (5) are connected with the lead screw adjuster (8);
a lithium battery and an electric motor are arranged in the lead screw regulator (8), a control circuit is also arranged in the lead screw regulator (8), the output end of the lithium battery is electrically connected with the control circuit through an electric filter, and the control circuit is provided with a function of controlling the electric motor;
a display screen (9) and operation buttons are arranged on the outer wall of the screw rod adjuster (8).
2. Device for replacing a conductor spacer for a power transmission line of ± 800kV according to claim 1, characterized in that the grapple (4) is hinged to the 2 ends of the upper transverse shaft (1), to the 2 ends of the lower transverse shaft (3) and to the hinge of the first link (6) and the second link (7).
3. Device for replacing a conductor spacer for a power transmission line of + -800 kV according to claim 1, characterized in that the outer wall of the grapple (4) is provided with an insulating layer.
4. A device for replacing a ± 800kV transmission line conductor spacer according to claim 3, wherein the insulating layer is made of epoxy.
5. Device for replacing a conductor spacer for a power transmission line of ± 800kV according to any of the claims 1-4, wherein the elastic member (5) is a spring.
6. A method of using the device for replacing a ± 800kV transmission line conductor spacer according to any of claims 1-5, comprising the steps of:
step 1), checking the device before use;
step 2), adjusting the lengths of an upper transverse shaft (1), a middle vertical shaft (2) and a lower transverse shaft (3) to proper positions by adjusting a screw rod;
step 3), the device is installed at a proper position near the original spacer rod of the six-split conductor, 6 grapples (4) are respectively hung on the six-split conductor, and if the lengths of the upper transverse shaft (1), the middle vertical shaft (2) and the lower transverse shaft (3) are not proper, the step 2) is repeated;
step 4), pre-tightening the screw rod after the installation is completed, checking after the pre-tightening, and continuing after confirming that no error exists;
step 5), continuously tightening the lead screw to a proper position, and installing a new spacer at a required position;
step 6), installing the spacing rod in place through adjusting a screw rod;
and 7) loosening the screw rod to a proper position after confirming that the spacer rod is installed in place and the stress is normal, and taking out the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911202024.4A CN110752548B (en) | 2019-11-29 | 2019-11-29 | Device for replacing +/-800 kV transmission line conductor spacer and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911202024.4A CN110752548B (en) | 2019-11-29 | 2019-11-29 | Device for replacing +/-800 kV transmission line conductor spacer and use method |
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| Publication Number | Publication Date |
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| CN110752548A CN110752548A (en) | 2020-02-04 |
| CN110752548B true CN110752548B (en) | 2023-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911202024.4A Active CN110752548B (en) | 2019-11-29 | 2019-11-29 | Device for replacing +/-800 kV transmission line conductor spacer and use method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111668789A (en) * | 2020-06-12 | 2020-09-15 | 国网河北省电力有限公司建设公司 | Auxiliary device for installing four-bundle conductor spacer |
| CN114079252B (en) * | 2021-11-15 | 2022-05-27 | 芦焕青 | High tension transmission line overhauls conveyor |
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| CN105762703A (en) * | 2016-04-01 | 2016-07-13 | 国网浙江省电力公司台州供电公司 | Spacer replacement tool |
| CN209472351U (en) * | 2018-01-29 | 2019-10-08 | 青岛万川电力设备有限公司 | One kind can quadrangle clamping row insulation gap stick |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1042441A (en) * | 1996-07-19 | 1998-02-13 | Fujii Denko Co Ltd | Device for expansion of diameter of bundle of conductors |
| KR100794340B1 (en) * | 2007-06-28 | 2008-01-15 | 대원전기 주식회사 | Spacer jig for replacing spacer damper of overhead transmission line and a method for spacer damper using the same |
| CN202651683U (en) * | 2011-11-24 | 2013-01-02 | 山东电力集团公司超高压公司 | General type wire fastening device |
| CN206602318U (en) * | 2017-04-07 | 2017-10-31 | 国网技术学院 | Conductor spacer installation auxiliary device |
| CN207691383U (en) * | 2018-01-24 | 2018-08-03 | 安徽恒华电力设备有限公司 | A kind of conductor spacer of adjustable in length |
| CN208738796U (en) * | 2018-07-16 | 2019-04-12 | 广东良实机电工程有限公司 | A kind of high voltage circuit conductor spacer |
| CN209046143U (en) * | 2018-12-26 | 2019-06-28 | 国网河南省电力公司息县供电公司 | Replace the specific purpose tool of split conductor conductor spacer |
| CN210608300U (en) * | 2019-11-29 | 2020-05-22 | 国网四川省电力公司检修公司 | Special tool for replacing wire spacer of +/-800 kV power transmission line |
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2019
- 2019-11-29 CN CN201911202024.4A patent/CN110752548B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762703A (en) * | 2016-04-01 | 2016-07-13 | 国网浙江省电力公司台州供电公司 | Spacer replacement tool |
| CN209472351U (en) * | 2018-01-29 | 2019-10-08 | 青岛万川电力设备有限公司 | One kind can quadrangle clamping row insulation gap stick |
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| CN110752548A (en) | 2020-02-04 |
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