CN114123029B - Wire end clamp for replacing high-voltage insulator - Google Patents
Wire end clamp for replacing high-voltage insulator Download PDFInfo
- Publication number
- CN114123029B CN114123029B CN202111406020.5A CN202111406020A CN114123029B CN 114123029 B CN114123029 B CN 114123029B CN 202111406020 A CN202111406020 A CN 202111406020A CN 114123029 B CN114123029 B CN 114123029B
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- China
- Prior art keywords
- sliding
- bushing
- hexagonal
- turning plate
- clamp
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- 239000012212 insulator Substances 0.000 title claims abstract description 27
- 230000007306 turnover Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012211 strain insulator Substances 0.000 description 1
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
Landscapes
- Insulators (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention provides a wire end clamp for replacing a high-voltage insulator, which solves the general problem of the clamp for replacing the wire end insulator of an extra-high voltage circuit. The main body of the clamp turning plate clamp is connected with the turning plate into a whole through the turning plate rotating shaft, the turning plate can rotate around the turning plate rotating shaft, and the left end and the right end of the turning plate clamp are connected with the connecting plate through bolts and nuts, so that other tools are connected. The center of the clamp is of a double-layer sliding bushing structure, and when the line fitting is P-55 or WS-55, the inner-layer bushing is slid out to be perfectly matched with the M42 bolt; when the line fitting is P-42 or WS-42, the inner lining is pushed into the outer lining, and then the line fitting can be perfectly matched with the M36 bolt. The turnover plate clamp is matched with the closed clamp for use, so that the replacement of single insulators at the two ends of the insulator string is realized.
Description
Technical field:
the invention relates to the technical field of maintenance of extra-high voltage transmission lines, in particular to a wire end fixture for replacing a high-voltage insulator.
Background
The safe and stable operation of the ultra-high voltage transmission line is related to the safety of the power grid. When the power grid normally operates, the occurrence of low-value zero-value insulators is unavoidable, and the replacement work of the low-value zero-value insulators is an important component part of unit safety maintenance work, wherein the insulator replacement fixture and the operation method are particularly important.
At present, for the strain insulator string of the ultra-high voltage transmission line, an operation method of replacing a single insulator by a closed clamp is mainly adopted. The lead end fitting is matched with: the insulator 15, the bowl head hanging plate 14, the cross hanging plate 10, the parallel hanging plate 9, the connecting bolts 7 and 8 and other hardware fittings are matched with each other as shown in fig. 1.
According to different insulator types, hanging plates and matched bolts with different types are needed, for example, the matched bolts of the parallel hanging plate P-42 and the bowl head hanging plate WS-42 are usually M36, the matched bolts of the parallel hanging plate P-55 and the bowl head tube plate WS-55 are usually M42, and on an actual line, the parallel hanging plate P-55 and the bowl head tube plate WS-55 also have special types matched with the M36 bolts. In view of this, it is necessary to use a different jig for insulator replacement, which increases construction cost and causes a complicated replacement work.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the wire end clamp for replacing the high-voltage insulator, and solves the general problem of replacing the wire end insulator clamp for the extra-high voltage circuit.
The invention particularly provides a wire end clamp for replacing a high-voltage insulator, which comprises a turnover plate clamp main body, a turnover plate rotating shaft, a first connecting plate, a second connecting plate and a turnover plate clamp center, wherein the turnover plate clamp center is of a double-layer sliding bushing structure and is used for being matched with bolts matched with insulators of different types to realize the replacement of the high-voltage insulators of different types.
Preferably, the main body of the turning plate clamp is connected with the turning plate into a whole through a turning plate rotating shaft, the turning plate can rotate around the turning plate rotating shaft, the left end of the turning plate clamp is connected with the connecting plate through a bolt and a nut, and the right and left ends of the turning plate are connected with the connecting plate through a bolt and a nut; the connecting plates are respectively connected with other tools.
Preferably, the double-layer sliding bushing structure is respectively arranged at the central holes of the flap card main body and the flap.
Preferably, the double-layer sliding bush structure comprises a fixed hexagonal bush, a sliding hexagonal bush, a limiting sleeve, a limiting baffle and a set screw.
Preferably, the end of the fixed hexagonal bushing is provided with a convex ring, the limiting sleeve is provided with a first concave ring, the convex ring is matched with the first concave ring, and the limiting baffle (18), the limiting sleeve and the flap card main body are connected into a whole through a set screw.
Preferably, the sliding hexagonal bush is installed in the fixed hexagonal bush, and the limit baffle is used for limiting the left-right sliding position of the sliding hexagonal bush.
Preferably, the fixed hexagonal bushing cavity is adapted for an M42 bolt and the sliding hexagonal bushing cavity is adapted for an M36 bolt.
Preferably, a second concave ring is machined in the middle of the sliding hexagonal bushing, and the sliding hexagonal bushing is provided with a left-end upper convex ring and a right-end lower convex ring.
Preferably, the end face of the limit baffle is matched with the second concave ring, the sliding hexagonal bushing slides leftwards, the sliding position of the sliding hexagonal bushing is limited by the lower convex ring, and at the moment, the fixed hexagonal bushing cavity is suitable for an M42 bolt.
Preferably, the end face of the limit baffle is matched with the second concave ring, the sliding hexagonal bush slides rightwards, the sliding position of the sliding hexagonal bush is limited by the upper convex ring, at the moment, the fixed hexagonal bush and the sliding hexagonal bush are closed, and the sliding hexagonal bush cavity is suitable for an M36 bolt.
The invention solves the general problem of the fixture for replacing the insulator at the wire end of the extra-high voltage circuit. The fixture is applicable to the line fittings P-42, WS-42, P-55 and WS-55. The P-42 and WS-42 mating bolts are M36. The turnover plate clamp is matched with the closed clamp for use, so that the replacement of single insulators at the two ends of the insulator string is realized.
Drawings
Fig. 1 is a schematic diagram of fitting of strain insulator-string hardware of an extra-high voltage transmission line.
Fig. 2 is a schematic diagram of the cooperation of the flap card and the strain insulator-string hardware.
Fig. 3 is a schematic view of the structure of the snap-in portion bushing of the flap.
Fig. 4 is a schematic view of the opening structure of the flap card of the present invention.
Fig. 5 is a schematic view of a closure structure of the flap card of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
The clamp is in the form of a turning plate clamp and is positioned and installed on the connecting bolts 7 and 8 of the hardware parallel hanging plate 9, as shown in figures 1-2. The turning plate clamp main body 4 and the turning plate 6 are connected into a whole through a turning plate rotating shaft 5, and the turning plate 6 can rotate around the turning plate rotating shaft 5. The left end of the turning plate clamp is connected with the connecting plate 3 through a bolt 1 and a nut 2, and the right and left end of the turning plate is connected with the connecting plate 11 through a bolt 12 and a nut 13; the connection plates 3 and 11 may be coupled to other tools, respectively.
The center of the fixture is a double-layer sliding bushing structure, as shown in fig. 3, and the fixture is respectively arranged at the center holes of the turning plate fixture main body 4 and the turning plate 6.
The end of the fixed hexagonal bush 20 is provided with a convex ring 22 which is matched with a concave ring 21 on the limit sleeve 19. The fixed hexagonal bush 20 connects the limit baffle 18, the limit sleeve 19 and the flap card main body 4 into a whole through the set screw 17, and a cavity for fixing the hexagonal bush 20 is suitable for an M42 bolt.
The sliding hexagonal bush 16 is installed in the fixed hexagonal bush 20, the left and right sliding positions of the sliding hexagonal bush 16 are limited by the limiting baffle 18, and a cavity of the sliding hexagonal bush 16 is suitable for an M36 bolt.
A concave ring 25 is processed in the middle of the sliding hexagonal bushing 16, the end faces of the limiting baffle 18 of the upper convex ring 23 at the left end and the lower convex ring 24 at the right end are formed to be matched with the concave ring 25, the sliding hexagonal bushing 16 slides leftwards, the sliding position of the sliding hexagonal bushing is limited by the convex ring 24, and at the moment, the die cavity of the fixed hexagonal bushing 20 is suitable for an M42 bolt; sliding hexagonal bushing 16 slides rightward, being limited in its sliding position by collar 23, at which time fixed hexagonal bushing 2) closes with sliding hexagonal bushing 16.
When the line fitting is P-55 or WS-55 and the bolt is M42, the sliding hexagonal bushing 16 is slid out leftwards, and the cavity of the fixed hexagonal bushing 20 can be perfectly matched with the M42 bolt; when the line fitting is P-42 or WS-42 and the bolt is M36, the sliding hexagonal bushing 16 is pushed into the outer bushing 20 to be closed, and the cavity of the sliding hexagonal bushing 16 can be perfectly matched with the M36 bolt.
When the turning plate clamp is used, the clamp is firstly lifted to the working position by an operator on the tower, the right end nut 13 is disassembled, and the turning plate 6 is opened, as shown in fig. 4. And then the clamp is moved to the parallel hanging 9 position in the line hardware string by the operator on the tower, and the clamp is moved upwards, so that the bushing in the middle of the clamp main body is sleeved outside the hexagon head of the bolt 7.
The turning plate 6 is closed, so that the bushing in the middle of the turning plate 6 is sleeved outside the hexagon of the nut 8, the bolt 12 passes through the end eyelet of the turning plate, and the nut 13 is screwed, as shown in fig. 5.
The turnover plate clamp is matched with the closed clamp for use, so that the replacement of single insulators at the two ends of the insulator string is realized.
While the applicant has described and illustrated the examples of the present invention in detail with reference to the drawings of the specification, it should be understood by those skilled in the art that the above examples are only preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, but not limiting the scope of the present invention, but any improvements or modifications based on the spirit of the present invention should fall within the scope of the present invention.
Claims (5)
1. The wire end fixture for replacing the high-voltage insulator is characterized by comprising a turnover plate fixture main body (4), a turnover plate (6), a turnover plate rotating shaft (5), a first connecting plate (3), a second connecting plate (11) and a central hole, wherein the center of the fixture is of a double-layer sliding bushing structure and is used for being matched with bolts matched with insulators of different types to realize the replacement of the high-voltage insulators of different types; the turning plate clamp comprises a turning plate clamp body (4) and a turning plate (6) which are connected into a whole through a turning plate rotating shaft (5), the turning plate (6) rotates around the turning plate rotating shaft (5), the left end of the turning plate clamp body is connected with a first connecting plate (3) through a bolt (1) and a nut (2), and the right end of the turning plate clamp body and the right end of the turning plate are connected with a second connecting plate (11) through a bolt (12) and a nut (13); the double-layer sliding bushing structure is respectively arranged at the central hole of the turning plate clamp main body (4) and the central hole of the turning plate (6); the double-layer sliding bushing structure comprises a fixed hexagonal bushing (20), a sliding hexagonal bushing (16), a limiting sleeve (19), a limiting baffle (18) and a set screw (17); the end of the fixed hexagonal bushing (20) is provided with a convex ring (22), the limiting sleeve (19) is provided with a first concave ring (21), the convex ring (22) is matched with the first concave ring (21), and the limiting baffle (18), the limiting sleeve (19) and the turnover plate card main body (4) are connected into a whole through a set screw (17); the sliding hexagonal bushing (16) is arranged in the fixed hexagonal bushing (20), and the limiting baffle (18) is used for limiting the left-right sliding position of the sliding hexagonal bushing; the sliding hexagonal bushing is left slid out of the fixed hexagonal bushing or pushed into the fixed hexagonal bushing to be closed, so that the sliding hexagonal bushing is matched with bolts of different types.
2. The fixture of claim 1, wherein the fixed hexagonal bushing (20) cavity is adapted for an M42 bolt and the sliding hexagonal bushing (16) cavity is adapted for an M36 bolt.
3. A fixture as claimed in claim 2, wherein the sliding hexagonal bush (16) is provided with a second female ring (25) in the middle and with a left-hand upper male ring (23) and a right-hand lower male ring (24).
4. A fixture as claimed in claim 3, wherein the end face of the limit stop (18) is matched with the second concave ring (25), the sliding hexagonal bush (16) slides leftwards and is limited in sliding position by the lower right convex ring (24), and the die cavity of the fixed hexagonal bush (20) is suitable for an M42 bolt.
5. The clamping apparatus as claimed in claim 4, characterized in that the end face of the limit stop (18) cooperates with the second concave ring (25), the sliding hexagonal bush (16) slides rightward, the sliding position of which is limited by the upper left-end convex ring (23), at this time, the fixed hexagonal bush (20) closes with the sliding hexagonal bush (16), and the cavity of the sliding hexagonal bush (16) is suitable for the M36 bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111406020.5A CN114123029B (en) | 2021-11-24 | 2021-11-24 | Wire end clamp for replacing high-voltage insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111406020.5A CN114123029B (en) | 2021-11-24 | 2021-11-24 | Wire end clamp for replacing high-voltage insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114123029A CN114123029A (en) | 2022-03-01 |
| CN114123029B true CN114123029B (en) | 2024-03-01 |
Family
ID=80371993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111406020.5A Active CN114123029B (en) | 2021-11-24 | 2021-11-24 | Wire end clamp for replacing high-voltage insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114123029B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0325806A1 (en) * | 1988-01-21 | 1989-08-02 | S.I.F.E. SOCIETA' ITALIANA FORNITURE ELETTRICHE S.p.A. | Sealed extensible coupler for connecting pipes having threaded ends, especially for containing electrical conductors |
| TW200838645A (en) * | 2007-03-23 | 2008-10-01 | Univ Nat Formosa | Multidimensional torsion wrench tool |
| CN201985467U (en) * | 2010-12-29 | 2011-09-21 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Fixture for replacing end strain insulator string on 800kV line |
| CN103009315A (en) * | 2012-12-04 | 2013-04-03 | 包长仁 | Integrated socket wrench |
| TW201501874A (en) * | 2013-07-15 | 2015-01-16 | Chuan-Tse Lin | The socket wrench which has multi-in-one socket group with telescopic structure |
| CN209709550U (en) * | 2019-06-20 | 2019-11-29 | 中国南方电网有限责任公司超高压输电公司柳州局 | It is a kind of spy supertension line in the general turnover panel fixture of insulator |
-
2021
- 2021-11-24 CN CN202111406020.5A patent/CN114123029B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0325806A1 (en) * | 1988-01-21 | 1989-08-02 | S.I.F.E. SOCIETA' ITALIANA FORNITURE ELETTRICHE S.p.A. | Sealed extensible coupler for connecting pipes having threaded ends, especially for containing electrical conductors |
| TW200838645A (en) * | 2007-03-23 | 2008-10-01 | Univ Nat Formosa | Multidimensional torsion wrench tool |
| CN201985467U (en) * | 2010-12-29 | 2011-09-21 | 中国南方电网有限责任公司超高压输电公司曲靖局 | Fixture for replacing end strain insulator string on 800kV line |
| CN103009315A (en) * | 2012-12-04 | 2013-04-03 | 包长仁 | Integrated socket wrench |
| TW201501874A (en) * | 2013-07-15 | 2015-01-16 | Chuan-Tse Lin | The socket wrench which has multi-in-one socket group with telescopic structure |
| CN209709550U (en) * | 2019-06-20 | 2019-11-29 | 中国南方电网有限责任公司超高压输电公司柳州局 | It is a kind of spy supertension line in the general turnover panel fixture of insulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114123029A (en) | 2022-03-01 |
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