CN218549321U - Universal fixture for live replacement of linear tower insulator string in wire tightening screw rod method - Google Patents
Universal fixture for live replacement of linear tower insulator string in wire tightening screw rod method Download PDFInfo
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- CN218549321U CN218549321U CN202223083648.9U CN202223083648U CN218549321U CN 218549321 U CN218549321 U CN 218549321U CN 202223083648 U CN202223083648 U CN 202223083648U CN 218549321 U CN218549321 U CN 218549321U
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Abstract
The utility model discloses a universal fixture for replacing insulator chains of linear towers in a live-wire lead screw method, which comprises a large fixture and a small fixture; the large clamp comprises a cuboid-shaped bearing arm, wherein a horizontal tail hook and a vertical tail hook are arranged on one side in the length direction of the cuboid-shaped bearing arm, lead screw mounting arms are respectively and vertically arranged on the other side in the length direction and one end in the height direction of the cuboid-shaped bearing arm, and a rectangular horizontal through groove is arranged on the cuboid-shaped bearing arm corresponding to the intersection area of the two lead screw mounting arms; the small fixture comprises a rectangular bearing arm, a tail hook is arranged on the lower side of one end of the rectangular bearing arm, and a screw rod mounting structure is arranged on the other end of the rectangular bearing arm; when the small fixture is assembled with the large fixture, the screw rod mounting structure end of the small fixture is inserted into the horizontal through groove on the large fixture and connected through a bolt. The installation on the cross arm of different structures, different positions is realized to two fixtures of accessible, and the mounted position is nimble, and cross arm strong adaptability. When the wire tightening screw rod is installed, the short columns on the two sides of the rectangular nut are installed through the limiting grooves in the clamping apparatus, and the wire tightening screw rod is suitable for installation of screw rods with different diameters.
Description
Technical Field
The utility model relates to a live working multiplexer utensil specifically is a general fixture of change straight line shaft tower insulator chain in tight line lead screw method live-wire.
Background
In order to ensure safe and reliable operation of a power grid and reduce electric quantity loss caused by power failure and defect elimination, the insulator string is replaced in a charged manner, and the method is a main project for eliminating defects of a power transmission line. When the insulator is changed in a live-line mode, the load of the lead needs to be transferred to a bearing tool to enable the insulator string to be loosened, and therefore the damaged insulator can be changed. The method for replacing the suspension string insulator in an electrified way by the wire tightening screw rod has the advantages of convenient operation, few tools, high efficiency, wide adaptability and the like, thereby being widely applied to electrified operation.
The method for replacing the 110-220kV linear tower insulator string by using the wire-tightening screw rod method is a main item for eliminating the defects of the power transmission line, and due to the fact that the cross arms of towers are various in size, insulators and hardware fittings are various in type and different in size, various types of fixtures are produced by manufacturers at present, various types of screw rods are produced in a matched mode, the universality is low, different fixtures need to be replaced according to different positions of operating points, and the screws can not be used in a matched mode with the various types of screw rods, and therefore the labor intensity is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a nimble general fixture that just can match different specification lead screws in cross arm connection position for live change straight line shaft tower insulator chain in the lead screw method of acting as go-between.
The utility model provides a universal fixture for replacing insulator chains of linear towers in a live-wire lead screw method, which comprises a large fixture and a small fixture; the large clamp comprises a cuboid-shaped bearing arm, wherein a horizontal tail hook and a vertical tail hook are arranged on one side in the length direction of the cuboid-shaped bearing arm, lead screw mounting arms are respectively and vertically arranged on the other side in the length direction and one end in the height direction of the cuboid-shaped bearing arm, and a rectangular horizontal through groove is arranged on the cuboid-shaped bearing arm corresponding to the intersection area of the two lead screw mounting arms; the small fixture comprises a rectangular bearing arm, a tail hook is arranged on the lower side of one end of the rectangular bearing arm, and a screw rod mounting structure is arranged on the other end of the rectangular bearing arm; when the small fixture is assembled with the large fixture, the screw rod mounting structure end of the small fixture is inserted into the horizontal through groove on the large fixture and connected through a bolt.
In an embodiment of the above fixture, a U-shaped groove is formed in a center plane in the width direction of the lead screw mounting arm, a limiting groove perpendicular to a notch of the U-shaped groove is formed in an entity on both sides of the U-shaped groove, the limiting groove is U-shaped, and a bolt mounting hole is formed in the outer side of the limiting groove.
In an embodiment of the fixture, bolt mounting holes are symmetrically formed in two ends of the horizontal through groove in the height direction.
In an embodiment of the fixture, the screw rod mounting structure includes a U-shaped groove formed along a center plane in a width direction of the end portion of the rectangular force-bearing arm, and a limiting groove formed on two sides of the U-shaped groove and perpendicular to a notch of the U-shaped groove, the limiting groove is U-shaped, and bolt mounting holes are symmetrically formed on two sides of the limiting groove.
In an embodiment of the fixture, a bolt mounting hole is formed at a tail hook of the small fixture.
The utility model discloses can be according to the actual structure and the position of cross arm, select to adopt big fixture of exclusive use or little fixture or use the assembly of big fixture and size to realize the installation on the cross arm, verify through the experiment, the different cross arms installation that is applicable to multiple 110-220kV straight line tower type that can be fine. Namely the utility model discloses two fixture of accessible realize installing on the cross arm of isostructure, different positions, and the mounted position is nimble, cross arm strong adaptability. In addition, when the tightening screw rod is installed, short columns on two sides of the rectangular nut are installed through limiting grooves in the clamping apparatus, and the tightening screw rod is suitable for installation of screw rods with different diameters.
Drawings
Fig. 1 is a schematic structural view of the large fixture of the present invention.
Fig. 2 is a schematic structural view of the small fixture of the present invention.
Fig. 3 is a schematic view of a first usage status of the present invention.
Fig. 4 is a schematic view of a use state of the second embodiment of the present invention.
Fig. 5 is a schematic view of a third embodiment of the present invention in a use state.
Fig. 6 is a schematic view of a fourth usage status of the present invention.
Fig. 7 is a schematic view of a fifth usage state of the present invention.
Detailed Description
The utility model discloses a general fixture of linear tower insulator chain is changed in electrification in this kind of tight line lead screw method, including big fixture and little fixture, big fixture and little fixture can the exclusive use, also can use after the assembly.
As can be seen from fig. 1:
the overall structure of the large fixture A is in a cross shape and comprises a cuboid-shaped force bearing arm A1, a horizontal tail hook A2 and a vertical tail hook A3 are arranged on one side of the length direction of the force bearing arm A1, and a screw rod installation arm A4 is respectively and vertically arranged on the other side of the length direction and one end of the height direction. A rectangular horizontal through groove A5 is formed in the rectangular bearing arm A1 corresponding to the intersection area of the two lead screw mounting arms A4.
The width direction central plane of lead screw installation arm A4 is provided with the U-shaped groove, is provided with the spacing groove A41 with U-shaped groove notch vertically on the entity of U-shaped groove both sides, and the shape of spacing groove is the U-shaped, and the outside of spacing groove sets up the bolt mounting hole.
Bolt mounting holes are symmetrically formed in two ends of the horizontal through groove A5 in the height direction.
As can be seen from fig. 2:
the small fixture B comprises a rectangular bearing arm B1, a tail hook B2 is arranged on the lower side of one end of the rectangular bearing arm B1, and a screw rod mounting structure B3 is arranged at the other end of the rectangular bearing arm B1.
The screw rod mounting structure B3 comprises a U-shaped groove formed in the center face in the width direction of the end of the rectangular bearing arm B1 and limiting grooves which are formed in the two sides of the U-shaped groove and are perpendicular to the notches of the U-shaped groove, the limiting grooves are U-shaped, and bolt mounting holes are symmetrically formed in the two sides of the limiting grooves.
In the first embodiment, as shown in fig. 3, a small fixture is used alone, a tail hook of the small fixture is hooked on a horizontal edge of an L-shaped cross arm, a lead screw mounting structure at the end of a rectangular bearing arm extends out of the horizontal edge of the L-shaped cross arm, when a wire tightening lead screw is mounted, a rectangular nut on the lead screw mounting structure is located in a U-shaped groove of the lead screw mounting structure, short posts on two sides of the rectangular nut are placed in a limiting groove of the lead screw mounting structure, and a bolt is mounted in a bolt mounting hole outside the limiting groove and locked with the nut.
Second embodiment, as shown in fig. 4, in this embodiment, a small clamp is used alone, a tail hook of the small clamp is hooked on one side of a wing plate of the T-shaped cross arm, and a screw rod mounting structure at the end part of the rectangular force bearing arm extends out of the wing plate of the T-shaped cross arm. In order to ensure the stability of the small fixture, a fixing bolt can be screwed at the bolt mounting hole of the tail hook, and an adjusting inclined gasket is required to be arranged between the head of the fixing bolt and the outer wall of the tail hook in a cushioning mode. Installation of the wire tightening screw rod refers to the first embodiment.
Third embodiment, as shown in fig. 5, in this embodiment, a large fixture is used alone, a horizontal tail hook of the large fixture is hooked on a horizontal side of an L-shaped cross arm, a wire tightening rod is installed through a horizontal lead screw installation arm, and installation of the wire tightening rod is referred to first embodiment.
Fourth embodiment, as shown in fig. 6, the present embodiment uses a large fixture alone, and is different from the third embodiment in that the vertical tail hook of the large fixture is inserted between the L-shaped cross arms of the backrest arrangement, and the vertical arm of one of the L-shaped cross arms is fastened by the vertical tail hook.
Fifth embodiment, as shown in fig. 7, this embodiment uses a small jig in combination with a large jig. When the small fixture is assembled with the large fixture, the screw rod mounting structure end of the small fixture is inserted into the horizontal through groove on the large fixture and is connected through the bolt. Then the tail hook of the small fixture hooks the horizontal side of the L-shaped cross arm, the large fixture is positioned outside the vertical arm of the L-shaped cross arm, the wire tightening screw rod is installed through the screw rod installation arm in the horizontal direction, and the installation operation refers to the first embodiment.
According to the above embodiment, the utility model discloses can be according to the actual structure and the position of cross arm, the selection adopts big fixture of exclusive use or little fixture or uses the assembly of big fixture and size to realize the installation on the cross arm, and is applicable in the straight line tower type of different 110-220kV completely. Namely the utility model discloses two fixture of accessible realize installing on the cross arm of isostructure, different positions, and the mounted position is nimble, cross arm strong adaptability. In addition, when the wire tightening screw rod is installed, short columns on two sides of the rectangular nut are installed through the limiting grooves in the clamping apparatus, and the wire tightening screw rod is suitable for installation of screw rods with different diameters.
Claims (5)
1. The utility model provides a general fixture of change straight line shaft tower insulator chain in power consumption of tight line lead screw method which characterized in that:
the fixture comprises a large fixture and a small fixture;
the large clamp comprises a cuboid-shaped bearing arm, wherein a horizontal tail hook and a vertical tail hook are arranged on one side in the length direction of the cuboid-shaped bearing arm, lead screw mounting arms are respectively and vertically arranged on the other side in the length direction and one end in the height direction of the cuboid-shaped bearing arm, and a rectangular horizontal through groove is arranged on the cuboid-shaped bearing arm corresponding to the intersection area of the two lead screw mounting arms;
the small fixture comprises a rectangular bearing arm, a tail hook is arranged on the lower side of one end of the rectangular bearing arm, and a screw rod mounting structure is arranged on the other end of the rectangular bearing arm;
when the small fixture is assembled with the large fixture, the screw rod mounting structure end of the small fixture is inserted into the horizontal through groove on the large fixture and connected through a bolt.
2. The universal fixture for live-wire replacement of the insulator string of the linear tower in the wire tightening screw rod method according to claim 1, is characterized in that: the screw rod mounting arm is characterized in that a U-shaped groove is formed in the center face in the width direction of the screw rod mounting arm, limiting grooves perpendicular to the notches of the U-shaped groove are formed in the entities on the two sides of the U-shaped groove, the limiting grooves are U-shaped, and bolt mounting holes are formed in the outer sides of the limiting grooves.
3. The universal fixture for live-wire replacement of the insulator string of the linear tower in the wire tightening screw rod method according to claim 1, is characterized in that: and bolt mounting holes are symmetrically formed in two ends of the horizontal through groove in the height direction.
4. The universal fixture for live-wire replacement of the insulator string of the linear tower in the wire tightening screw rod method according to claim 1, is characterized in that: the screw rod mounting structure comprises a U-shaped groove formed in the center face of the end portion of the rectangular bearing arm in the width direction, and limiting grooves perpendicular to the notches of the U-shaped groove and formed in the two sides of the U-shaped groove, the limiting grooves are U-shaped, and bolt mounting holes are symmetrically formed in the two sides of each limiting groove.
5. The universal fixture for live replacement of insulator strings of linear towers in the wire tensioning screw method according to claim 1, characterized in that: and a bolt mounting hole is formed in the tail hook of the small fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223083648.9U CN218549321U (en) | 2022-11-21 | 2022-11-21 | Universal fixture for live replacement of linear tower insulator string in wire tightening screw rod method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223083648.9U CN218549321U (en) | 2022-11-21 | 2022-11-21 | Universal fixture for live replacement of linear tower insulator string in wire tightening screw rod method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218549321U true CN218549321U (en) | 2023-02-28 |
Family
ID=85262011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223083648.9U Active CN218549321U (en) | 2022-11-21 | 2022-11-21 | Universal fixture for live replacement of linear tower insulator string in wire tightening screw rod method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218549321U (en) |
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2022
- 2022-11-21 CN CN202223083648.9U patent/CN218549321U/en active Active
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