CN114188872A - 500kV line strain insulator rod type insulator fixture - Google Patents
500kV line strain insulator rod type insulator fixture Download PDFInfo
- Publication number
- CN114188872A CN114188872A CN202111281826.6A CN202111281826A CN114188872A CN 114188872 A CN114188872 A CN 114188872A CN 202111281826 A CN202111281826 A CN 202111281826A CN 114188872 A CN114188872 A CN 114188872A
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- Prior art keywords
- rod
- insulator
- clamp
- bearing
- fixture
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- 239000012212 insulator Substances 0.000 title claims abstract description 61
- 239000012211 strain insulator Substances 0.000 title claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- 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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- Electric Cable Installation (AREA)
Abstract
The invention discloses a 500kV line tension rod type insulator fixture which comprises a lifting rod, a bearing support, a closed fixture, a bearing pull rod and a movable pulley block, wherein the lifting rod is connected with the bearing support through a connecting rod; two ends of the lifting rod are respectively connected with the upper end of the bearing support, and the lower end of the bearing support is connected with the closed fixture; two ends of the two closed fixtures are respectively connected with the bearing pull rod, and the same bearing pull rod is connected between the same sides of the two closed fixtures; the two ends of the lifting rod are also respectively connected with the movable pulley block; the bearing pull rod comprises a bearing pull rod and an adjusting screw rod, and the bearing pull rod is connected with the adjusting screw rod in a matching mode. The insulator replacing device is simple in design structure and convenient and fast to operate, the time for repairing and replacing the insulator is shortened, the physical power consumption of a maintainer and the number of operating personnel are reduced, extra power mechanical equipment is not needed, the repairing process is optimized, the repairing efficiency is high, the risk of a power grid is reduced, and the power failure load loss is reduced.
Description
Technical Field
The invention relates to the technical field of clamps, in particular to a 500kV line strain rod insulator clamp.
Background
In the power grid operation, the tension rod type porcelain insulators used in the current 500kV line generally have no special replacing tool, the tension rod type porcelain insulators of the 500kV line are damaged due to natural factors or body defects, the replacing operation difficulty is high according to the current overhauling tools and technologies, because the tension rod type insulators of the 500kV line are overweight and have special shapes, the length reaches 1.6 to 1.8 meters, the self weight of the insulators exceeds 100kg, the rated load of the insulators reaches 16 to 25 tons, the self weight of the rod type insulators exceeds the manpower installing range and is influenced by man-machine efficiency, an overhauling worker can not lift and install the rod type insulators on an insulator string at all, if the conventional chain block is adopted for replacing, the engineering quantity of replacing the insulators is large, the whole string of insulators needs to be dismantled, the self weight of the whole string of rod type insulators reaches 0.5 ton, the replacing difficulty is high, the time consumption is long, mechanical installation is needed, the long-time outage of the line can be caused, and great power grid risks exist.
Disclosure of Invention
The invention aims to provide a 500kV line strain rod insulator fixture, which can solve the problems of high difficulty and long time consumption in replacing a rod insulator in the prior art.
The purpose of the invention is realized by the following technical scheme:
the invention provides a 500kV line tension rod type insulator fixture which comprises a lifting rod, a bearing support, a closed fixture, a bearing pull rod and a movable pulley block, wherein the lifting rod is connected with the bearing support through a connecting rod; two ends of the lifting rod are respectively connected with the upper end of the bearing support, and the lower end of the bearing support is connected with the closed fixture; two ends of the two closed fixtures are respectively connected with the bearing pull rod, and the same bearing pull rod is connected between the same sides of the two closed fixtures;
the two ends of the lifting rod are also respectively connected with the movable pulley block;
the bearing pull rod comprises a bearing pull rod and an adjusting screw rod, and the bearing pull rod is connected with the adjusting screw rod in a matching mode.
Further, the closed fixture comprises an upper fixture part and a lower fixture part; the fixture upper part and the fixture lower part are elastically connected to form a circular ring.
Furthermore, the bearing support is of an A-shaped design and comprises side supports on two sides and a cross rod; the cross rods are connected between the side supports.
Furthermore, the device also comprises a support rod; one end of the supporting rod is connected with the lifting rod, and the other end of the supporting rod is connected with the cross rod.
Furthermore, the device also comprises an auxiliary hoop and a wire grip; one end of the wire grip is connected with the force bearing support, and the other end of the wire grip is connected with the auxiliary hoop.
Furthermore, an adjusting handle is arranged on the adjusting screw rod.
Furthermore, one end of the bearing pull rod is connected with the upper half part of the fixture, and the other end of the bearing pull rod is connected with one end of the adjusting screw rod; the other end of the adjusting screw rod is connected with the upper half part of the other clamp.
Further, the fixture upper part and the fixture lower part are elastically connected to form a circular ring, wherein the circular ring comprises a large circular ring and a small circular ring.
Furthermore, a hanging structure is arranged at the lower end of the movable pulley block.
The invention has the beneficial effects that:
the 500kV line tension rod type insulator clamp is lifted to the position of an overhauled insulator string through a working rope. The closed type fixture is connected to two ends of the rod insulator to be replaced, and then the bearing pull rod and the adjusting screw rod are adjusted to loosen the rod insulator, so that the rod insulator to be replaced can be detached. And then, lifting the new rod insulator to the mounting point of the original insulator string by using the movable pulley block and the working rope, loosening the adjusting screw rod of the clamping device, and finishing the installation of the rod insulator. The insulator replacing device is simple in design structure, high in strength of the body material and light in weight, the time for repairing and replacing the insulator is shortened, the physical power consumption and the number of operating personnel of the repairing personnel are reduced, extra power mechanical equipment is not needed, the repairing process is optimized, the repairing efficiency is high, the power grid risk is reduced, and the power failure load loss is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of a 500kV line tension rod type insulator clamp;
fig. 2 is a schematic view of a part of a 500kV line tension rod type insulator fixture.
The reference numbers are as follows:
1-supporting rod, 2-lifting rod, 3-adjusting handle, 4-movable pulley block, 5-bearing pull rod, 51-adjusting screw rod, 52-bearing pull rod, 6-closed fixture, 61-fixture upper part, 62-fixture lower part, 7-bearing support, 71-side support, 72-cross rod, 8-rod insulator, 9-wire tightener and 10-auxiliary hoop.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Referring to fig. 1 and fig. 2, an embodiment of the present application provides a 500kV line tension rod insulator fixture, which includes a lifting rod, a load-bearing bracket, a closed fixture, a load-bearing pull rod, and a movable pulley block; two ends of the lifting rod are respectively connected with the upper end of the bearing support, and the lower end of the bearing support is connected with the closed fixture; two ends of the two closed fixtures are respectively connected with the bearing pull rod, and the same bearing pull rod is connected between the same sides of the two closed fixtures;
the two ends of the lifting rod are also respectively connected with the movable pulley block;
the bearing pull rod comprises a bearing pull rod and an adjusting screw rod, and the bearing pull rod is connected with the adjusting screw rod in a matching mode.
Specifically, the closed fixture comprises an upper fixture part and a lower fixture part; the fixture upper part and the fixture lower part are elastically connected to form a circular ring. Wherein the synthetic rings comprise a large ring and a small ring. The opposite positions of the two closed clamps are large circular rings which are arranged at the inner sides of the two closed clamps, and small circular rings are arranged at the outer sides of the closed clamps.
It should be noted that, the size of the two ends of the large ring and the rod insulator are matched, and the small ring can limit the rod insulator, so that in the process of actually mounting and dismounting the rod insulator, the two ends of the rod insulator are mounted on the large ring on the closed fixture, and the two ends contact the small ring, so that the limiting effect is achieved.
Preferably, the bearing support is of an A-shaped design and comprises side supports on two sides and a cross rod; the cross rods are connected between the side supports.
Specifically, one end of the bearing pull rod is connected with the upper half part of the fixture, and the other end of the bearing pull rod is connected with one end of the adjusting screw rod; the other end of the adjusting screw rod is connected with the upper half part of the other clamp.
Specifically, an adjusting handle is arranged on the adjusting screw rod. The adjusting screw rod is adjusted through the adjusting handle, the tightness degree between the adjusting bearing pull rod and the adjusting screw rod is achieved, the length and the width of the bearing pull rod are adjusted, and therefore the rod-shaped insulator is installed and detached.
It should be noted that the load-bearing support and the upper half part of the fixture are connected to form an overall triangular structure, which plays a good role in stabilizing and supporting the whole fixture.
Specifically, the 500kV line tension rod type insulator fixture further comprises a supporting rod; one end of the supporting rod is connected with the lifting rod, and the other end of the supporting rod is connected with the cross rod. The junction of the supporting rod and the lifting rod is fixedly connected, the connecting position is located between the bearing support and the mounting position of the movable pulley block, and the junction of the supporting rod and the lifting rod plays a limiting role in the movable pulley block.
Specifically, the 500kV line tension rod type insulator fixture further comprises an auxiliary hoop and a wire tightener; one end of the wire grip is connected with the force bearing support, and the other end of the wire grip is connected with the auxiliary hoop.
Specifically, the lower end of the movable pulley block is provided with a hanging structure. In this embodiment, a hook is taken as an example for explanation, but the hanging device is not limited to the structure of the hook, and the structures that can be hung are all the protection scope of the present invention. In specific implementation, the rod insulator is lifted to an installation or disassembly position by the aid of matching of the hooks and the working ropes, then the rod insulator is fixed by the aid of the closed type clamping device, and the rod insulator is replaced or disassembled by adjusting tightness of the bearing pull rod and the adjusting screw rod.
The working principle of the invention is as follows: the 500kV line tension rod type insulator clamp is lifted to the position of an overhauled insulator string through a working rope. The closed type fixture is connected to two ends of the rod insulator to be replaced, and then the bearing pull rod and the adjusting screw rod are adjusted to loosen the rod insulator, so that the rod insulator to be replaced can be detached. And then, lifting the new rod insulator to the mounting point of the original insulator string by using the movable pulley block and the working rope, loosening the adjusting screw rod of the clamping device, and finishing the installation of the rod insulator.
In the description of the present invention, it is to be understood that the terms "intermediate", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature may be "on" the second feature in direct contact with the second feature, or the first and second features may be in indirect contact via an intermediate. "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (9)
1. A500 kV line strain insulator rod type insulator fixture is characterized by comprising a lifting rod, a bearing support, a closed fixture, a bearing pull rod and a movable pulley block; two ends of the lifting rod are respectively connected with the upper end of the bearing support, and the lower end of the bearing support is connected with the closed fixture; two ends of the two closed fixtures are respectively connected with the bearing pull rod, and the same bearing pull rod is connected between the same sides of the two closed fixtures;
the two ends of the lifting rod are also respectively connected with the movable pulley block;
the bearing pull rod comprises a bearing pull rod and an adjusting screw rod, and the bearing pull rod is connected with the adjusting screw rod in a matching mode.
2. The 500kV line tension rod type insulator clamp of claim 1, wherein the closed clamp comprises a clamp upper member and a clamp lower member; the fixture upper part and the fixture lower part are elastically connected to form a circular ring.
3. The 500kV line tension rod insulator clamp of claim 1, wherein the load bearing bracket is of a-type design, comprising two side brackets on both sides and a cross bar; the cross rods are connected between the side supports.
4. The 500kV line tension rod insulator clamp of claim 3, further comprising a support rod; one end of the supporting rod is connected with the lifting rod, and the other end of the supporting rod is connected with the cross rod.
5. The 500kV line tension rod insulator clamp of claim 1, further comprising an auxiliary hoop and a wire grip; one end of the wire grip is connected with the force bearing support, and the other end of the wire grip is connected with the auxiliary hoop.
6. The 500kV line tension rod insulator clamp of claim 1, wherein an adjusting handle is arranged on the adjusting screw rod.
7. The 500kV line tension rod type insulator clamp of claim 2, wherein one end of the force-bearing pull rod is connected with the upper half part of the clamp, and the other end of the force-bearing pull rod is connected with one end of the adjusting screw rod; the other end of the adjusting screw rod is connected with the upper half part of the other clamp.
8. The 500kV line tension rod type insulator clamp of claim 2, wherein the clamp upper member and the clamp lower member are elastically connected to form a circular ring, wherein the circular ring comprises a large circular ring and a small circular ring.
9. The 500kV line tension rod insulator clamp of claim 1, wherein a hanging structure is arranged at the lower end of the movable pulley block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281826.6A CN114188872A (en) | 2021-11-01 | 2021-11-01 | 500kV line strain insulator rod type insulator fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281826.6A CN114188872A (en) | 2021-11-01 | 2021-11-01 | 500kV line strain insulator rod type insulator fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114188872A true CN114188872A (en) | 2022-03-15 |
Family
ID=80601760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111281826.6A Pending CN114188872A (en) | 2021-11-01 | 2021-11-01 | 500kV line strain insulator rod type insulator fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114188872A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022212A (en) * | 2007-03-23 | 2007-08-22 | 上海市电力公司超高压输变电公司 | Live line replacing method high voltage transmission line strain insulator-string and device |
| CN103427370A (en) * | 2013-09-06 | 2013-12-04 | 国家电网公司 | Strain insulator string live replacing device for high-voltage transmission line |
| CN103457200A (en) * | 2013-07-22 | 2013-12-18 | 国家电网公司 | Tool set for replacing strain insulator string of substation framework |
| CN105470861A (en) * | 2015-12-29 | 2016-04-06 | 国网浙江省电力公司嘉兴供电公司 | Adaptive closed fixture for live working insulator of power transmission line |
| CN109217178A (en) * | 2018-11-19 | 2019-01-15 | 国网四川省电力公司检修公司 | Anticreep moves large-tonnage strain insulator more changing device and replacing options |
-
2021
- 2021-11-01 CN CN202111281826.6A patent/CN114188872A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022212A (en) * | 2007-03-23 | 2007-08-22 | 上海市电力公司超高压输变电公司 | Live line replacing method high voltage transmission line strain insulator-string and device |
| CN103457200A (en) * | 2013-07-22 | 2013-12-18 | 国家电网公司 | Tool set for replacing strain insulator string of substation framework |
| CN103427370A (en) * | 2013-09-06 | 2013-12-04 | 国家电网公司 | Strain insulator string live replacing device for high-voltage transmission line |
| CN105470861A (en) * | 2015-12-29 | 2016-04-06 | 国网浙江省电力公司嘉兴供电公司 | Adaptive closed fixture for live working insulator of power transmission line |
| CN109217178A (en) * | 2018-11-19 | 2019-01-15 | 国网四川省电力公司检修公司 | Anticreep moves large-tonnage strain insulator more changing device and replacing options |
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