CN105024303A - Universal combined-type hot-line wire-lifting device - Google Patents

Abstract

The invention discloses a general-purpose combined live wire lifter, which is characterized in that it comprises: a card-type clamp body (1), and a plurality of adjustment coupling holes are symmetrically arranged on the left and right sides of the clamp body (1) (3), the adjustment coupling hole (3) includes several first adjustment coupling holes (5) located in the middle of the fixture body (1) for adjusting the installation position of the movable slider (4) and the Several second adjustment coupling holes (7) in the lower part of the fixture body (1) are used to adjust the installation position of the long branch line hook assembly (6). The present invention provides a general-purpose combined wire lifter for live work, which is suitable for live work of eight-split, six-split, and two-split large-section conductors, and fills the gap of the general-purpose live-line lifter suitable for multi-circuit transmission lines of ultra-high voltage and ultra-high voltage on the same tower. The blank of the operation tool avoids the repeated development of the thread lifter tool and improves the economic benefit.

Description

A general-purpose combined wire lifter for live work

technical field

The invention relates to a general-purpose combined wire lifter for live work, in particular to a general-purpose combined wire lifter for live work suitable for super- and extra-high voltage multi-circuit transmission lines on the same tower, and belongs to the technical field of power line maintenance tools.

Background technique

Live work is an important means and method for the inspection, maintenance and transformation of power grid equipment, and an important technical measure to ensure the reliable and stable operation of the power system. The wire lifter is a commonly used tool in the maintenance of transmission lines. It lifts up the split wires during operation, so that the maintenance personnel can overhaul the insulators or fittings in relevant parts. The extensive investment and construction of UHV power transmission projects in my country has put forward higher requirements for the safe operation of the lines. In the tense areas of the Northwest Power Corridor, EHV and UHV multi-circuit transmission lines on the same tower have become a preferred erection scheme. The same transmission tower erects ± For 1100kV UHV DC and 750kV EHV AC (or 330kV AC line), conductors of different voltage levels have eight-split, six-split or two-split conductors. To carry out live maintenance work for this multi-circuit line on the same tower, it is necessary to develop a There is no wire lifter that is applicable to three kinds of wire split numbers at the same time. Therefore, it is an important aspect to ensure the safe and stable operation of EHV and UHV transmission lines to develop the corresponding high-standard maintenance equipment, that is, the general-purpose combined live work wire lifter.

Contents of the invention

The technical problem to be solved by the present invention is to provide a general-purpose combined live work wire lifter suitable for vertical double-split conductors; Universal combined live working wire lifter for wires.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A general-purpose combined wire lifter for live work, which is characterized in that it includes: a card-type clamp body, a number of adjustment coupling holes are symmetrically arranged on the left and right sides of the clamp body, and the adjustment coupling holes include Several first adjustment coupling holes in the middle of the clamp body for adjusting the installation position of the movable slider and several second adjustment coupling holes located at the lower part of the clamp body for adjusting the installation position of the long branch line hook assembly; The movable slider includes a symmetrically arranged left movable slider and a right movable slider, and the left movable slider and the right movable slider are respectively movably connected with the first adjustment coupling holes on the left and right sides of the clamp main body. The protruding parts at the lower end of the left movable slider and the right movable slider are both movably connected with the top of the double branching hook assembly or the short branching hook assembly.

The top of the clamp main body is symmetrically provided with groove-shaped first branching hooks; the second adjustment coupling hole is movably connected with the top end of the long branching hook assembly, and the long branching hook assembly includes The long rod of the thread-distributing hook is movably connected with a thread-distributing hook connecting rod for lengthening the long rod of the thread-distributing hook, and the end of the long rod of the thread-distributing hook is provided with a fourth thread-distributing hook.

The double branching hook assembly includes a short branching hook rod and a middle branching hook rod which are movably connected vertically. Third line hook.

The flexible connection includes fixing by screw connection.

The short line-splitting hook assembly includes a line-splitting hook ultra-short rod and a fifth line-splitting hook arranged at the end of the line-splitting hook ultra-short bar.

The first branching hook, the second branching hook, the third branching hook, the fourth branching hook and the fifth branching hook are all U-shaped hooks; the long rod of the branching hook is longer than the branching hook The length of the middle rod of the wire hook, the length of the middle rod of the wire-splitting hook is greater than the length of the short rod of the wire-splitting hook, and the length of the short rod of the wire-splitting hook is greater than the length of the ultra-short rod of the wire-splitting hook

Several of the first adjustment coupling holes are on the same horizontal plane with the same spacing; several of the second adjustment coupling holes are on the same horizontal plane below the first adjustment coupling holes; The number of the left and right sides of the main body is three, and the number of the second adjustment coupling holes is two on the left and right sides of the fixture main body.

An internal thread channel is opened in the middle of the fixture main body, and the internal thread channel is externally connected to a hydraulic pressure device.

The main body of the clamp, the long branching hook assembly, the double branching hook assembly and the short branching hook assembly are all made of high-strength aluminum alloy, and the model of the high-strength aluminum alloy is 7A04.

The material of the screw is high-strength alloy steel, and the model of the high-strength alloy steel is 30CrMnSiA.

Both the long branching hook assembly and the short branching hook assembly are provided with detachable branching hook joints.

The splitting hook connector can be connected with the main clamp, which is suitable for splitting wires with different wire spacings.

The distance between the second branching hook and the third branching hook is 400mm, which is suitable for lifting vertical double-split conductors with a splitting distance of 400mm.

The first adjustment connection hole is used to adjust the six-split wire with a split pitch of 400mm or 500mm.

The distance between the two first branching hooks is 400-500mm, which is suitable for lifting horizontal double-split conductors with a splitting distance of 400-500mm.

In the first adjustment connection hole, the hole located outside the fixture body is connected to the movable slider, and the movable slider is connected to the double branch line hook assembly, and when the hole located outside the fixture body in the second adjustment connection hole is connected to the long branch line hook assembly (At this time, the branching hook rod is connected to the branching hook rod), which is suitable for lifting eight-split conductors with a split spacing of 500mm.

The split spacing is the side length of the regular polygon.

The hole in the middle of the first adjustment connection hole is connected to the movable slider, and the movable slider is connected to the short line hook assembly, and the hole on the outside of the fixture main body in the second adjustment connection hole is connected to the long line hook assembly (at this time) The long rod of the wire hook is connected with a branch hook connecting rod), which is suitable for lifting six-split wires with a split spacing of 500mm.

In the first adjustment connection hole, the hole located inside the fixture body is connected to the movable slider, and the movable slider is connected to the short branch line hook assembly, and the hole located in the inside of the fixture body in the second adjustment connection hole is connected to the long branch line hook assembly. (At this time, the branching hook rod is not connected to the branching hook rod), which is suitable for lifting six-split conductors with a split spacing of 400mm.

The present invention is made up of a jig main body and four components, each component has 2 pieces, totally 8 pieces. The four components include a movable slider, a long branching hook assembly, a double branching hook assembly and a short branching hook assembly, and the four components are symmetrically arranged left and right. It is characterized in that the fixture body and other components can be symmetrically connected, and the fixture body contains a plurality of adjustment connection holes, which can be adjusted according to the size of the splitting distance of the sub-conductors, and can meet two kinds of splitting distances of 500mm and 400mm. The main body of the clamp is a left-right symmetrical structure, and the left and right sides each contain five connection holes and a U-shaped groove branching hook (that is, the first branching hook). The two first branching hooks on the main body of the fixture can support The uppermost two sub-wires of the multi-split wire; the "work" grooves on both sides of the fixture body can be connected to the movable slider; the upper end of the long branch hook assembly is connected to the fixture body, which can support the lowermost layer of the multi-split wire The two sub-wires; the upper end of the short branch hook assembly (or double-wire branch hook assembly) is connected with the movable slider, which can support the sub-conductors on both sides of the multi-split wire. The long branch hook assembly and the short branch hook assembly can be combined and symmetrically connected with the main body of the fixture and the movable slider according to the number of split sub-conductors. 500m and 400mm), double-split (split spacing is 400mm) conductors for wire lifting operation.

The fixture main body, the movable slider, the long branching hook assembly, the short branching hook assembly, and the double branching hook assembly are fixed with screws and are adjustable.

Combining with the specific situation of multi-circuit power transmission lines of ultra-high voltage and ultra-high voltage on the same tower, the invention develops a combined lift for live work suitable for eight-split, six-split, and two-split large-section conductors for the arrangement forms of conductors with different voltage levels and the number of conductor splits. The cable lifter fills the gap of general-purpose live working tools for EHV and UHV multi-circuit transmission lines on the same tower, avoids the repeated development of wire lifter tools, and improves economic benefits. The power transmission line provides a safe, reliable, efficient and convenient general-purpose combined wire lifter.

The present invention provides a general-purpose combined wire lifter for live work. The setting of the double-split hook assembly is suitable for lifting vertical double-split conductors with a split spacing of 400 mm; the setting of the first split hook is suitable for lifting split wires. Horizontal double-split conductors with a spacing of 400-500mm; combined set of clamp body, short-split hook assembly and long-split hook assembly, suitable for lifting six-split conductors; clamp main body, double-split hook assembly Combination setup with long split hook assembly, suitable for lifting eight-split conductors. The present invention provides a general-purpose combined wire lifter for live work, which is suitable for live work of eight-split, six-split, and two-split large-section wires, and fills the gap of the general-purpose live line for ultra-high and ultra-high voltage multi-circuit transmission lines on the same tower. The blank of the operation tool avoids the repeated development of the thread lifter tool and improves the economic benefit.

Description of drawings

Fig. 1 is the structural representation of eight split wire lifters of the present invention;

Fig. 2 is the structural representation of double line hook assembly among the present invention;

Fig. 3 is a schematic structural view of the middle and long branch line hook assembly of the present invention;

Fig. 4 is a schematic structural view of the middle and short branch hook assembly of the present invention;

Fig. 5 is the structural representation of the six-split wire lifter of 500mm split pitch among the present invention;

Fig. 6 is the structural representation of the six-split wire lifter of 400mm split pitch among the present invention;

Fig. 7 is a schematic structural view of the fixture main body in the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, a general-purpose combined live work wire lifter suitable for eight-split conductors has a symmetrical structure, and the structures of the left and right components are the same.

The fixture main body 1 is combined with the long branch line hook assembly 6 and the movable slider 4, the movable slider 4 is connected with the double branch line hook assembly 10, and the fixture main body 1 is provided with a U-shaped groove branch line hook ( Namely the first branching hook 2), the double branching hook assembly 10 has the second branching hook 13 and the third branching hook 14, the long branching hook assembly 6 has the fourth branching hook 15, the first The branching hook 2 , the second threading hook 13 , the third threading hook 14 and the fourth threading hook 15 are all U-shaped hooks.

When the movable slider 4 is connected with the outermost adjustment coupling hole 3 of the fixture main body 1, the first line-splitting hook 2, the second line-splitting hook 13, the third line-splitting hook 14 and the fourth line-splitting hook 15 are evenly distributed in the following 0 is the center of the circle, and a circle with a radius of 635.3 mm is inscribed on the four vertices of the right half of the regular octagon. The overall wire lifter is suitable for eight-split conductors with a split spacing of 500mm.

This moment, the line-splitting hook long bar 17 is connected with the line-splitting hook connecting rod 18 .

As shown in FIG. 2 , it is a schematic diagram of an exploded structure of the double branch line hook assembly 10 . The double branching hook assembly 10 includes a short branching hook rod 11 and a middle branching hook rod 12 which are movably connected vertically. The second line hook 13 and the third line hook 14. The short rod 11 of the wire-distributing hook and the middle rod 12 of the wire-dividing hook are connected by connecting bolts. The double branch line hook assembly 10 is connected with the movable slider 4 . The double-split hook assembly 10 constitutes a wire lifter and is applicable to vertical double-split conductors with a split spacing of 400mm.

As shown in FIG. 3 , it is a schematic diagram of an exploded structure of the long branching hook assembly 6 . Described long branch line hook assembly 6 comprises branch line hook long rod 17, and described line branch hook long bar 17 is movably connected with branch line hook connecting rod 18 for lengthening described branch line hook long bar 17, and the branch line The end of the wire hook long rod 17 is provided with a fourth wire branching hook 15 . The long branching hook assembly 6 is composed of a branching hook connecting rod 18 and a long branching hook rod 17 connected by connecting bolts. A\B two connection holes are arranged on the branching hook connecting rod 18, and the branching hook elongated bar 17 is connected with it respectively, can change two kinds of lengths, and the combination of Fig. 1 uses A hole. The long branch line hook assembly 6 is connected with the clamp main body 1 .

As shown in FIG. 4 , it is a schematic diagram of an exploded structure of the short branching hook assembly 16 . The short wire-splitting hook assembly 16 includes an ultra-short wire-splitting hook rod 19 and a fifth wire-splitting hook 20 disposed at the end of the ultra-short wire-splitting hook rod 19 . The short branching hook assembly 16 is composed of a branching hook joint and an ultra-short rod 19 of the branching hook connected by connecting bolts. The short branch line hook assembly 16 is connected with the movable slider 4 .

As shown in Figure 5, it is a structural diagram of a wire lifter suitable for six-split conductors with a split pitch of 500mm after recombination. The movable slider 4 is connected to the adjusting connection hole 3 in the middle of the main fixture 1 . After the long branching hook assembly 6 is disassembled, the A hole is converted into the B hole to connect, and then connected to the fixture main body 1; the double line branching hook assembly 10 is replaced by a short branching hook assembly 16 . The first branching hook 2, the fourth branching hook 15 and the fifth branching hook 20 are evenly distributed on the three vertexes of the right half of the regular hexagon inscribed in a circle with a radius of 500mm with 0 as the center. The overall wire lifter is suitable for six-split conductors with a split spacing of 500mm.

As shown in Figure 6, it is a structural diagram of a wire lifter suitable for six-split conductors with a split pitch of 400mm after recombination. The movable slider 4 is connected to the innermost adjustment connection hole 3 on the main fixture 1 . The branching hook long rod 17 is connected with the fixture main body 1; the short branching hook assembly 16 is connected with the movable slider 4. The first branching hook 2, the fifth branching hook 20 and the fourth branching hook 15 are evenly distributed on three vertices of the right half of the regular hexagon inscribed in a circle with a radius of 400mm with 0 as the center. The integral wire lifter is suitable for six-split conductors with a split spacing of 400mm.

At this moment, the line-splitting hook long rod 17 is not connected with the line-splitting hook connecting rod 18 .

As shown in FIG. 7 , it is a structural diagram of the main fixture 1 . The main fixture 1 is symmetrically provided with first branching hooks 2 .

In each of the combined thread pullers, an internal thread channel is opened in the middle of the main fixture 1, which can be externally connected to a hydraulic device.

The material of each fixture main body 1 and the first branching hook 2, the second branching hook 13, the third branching hook 14, the fourth branching hook 15 and the fifth branching hook 20 is selected from high-strength aluminum alloy ( 7A04).

The fixture main body 1 , the long branching hook assembly 6 , the double branching hook assembly 10 , the short branching hook assembly 16 , and the movable slider 4 are fixed with screws. The material of the screw is high-strength alloy steel (30CrMnSiA).

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. A general-purpose combined wire lifter for live work, characterized in that it includes: a card-type clamp body (1), and a number of adjustment coupling holes (3) are symmetrically arranged on the left and right sides of the clamp body (1). ), the adjustment coupling holes (3) include several first adjustment coupling holes (5) located in the middle of the fixture body (1) for adjusting the installation position of the movable slider (4) and the Several second adjustment coupling holes (7) on the lower part of the main body (1) are used to adjust the installation position of the long branch hook assembly (6); the movable slider (4) includes a symmetrically arranged left movable slider (8 ) and the right movable slider (9), the left movable slider (8) and the right movable slider (9) are respectively flexibly connected with the first adjustment coupling holes (5) on the left and right sides of the fixture main body (1) , the protruding parts at the lower ends of the left movable slider (8) and the right movable slider (9) are both movably connected to the top of the double branching hook assembly (10) or the short branching hook assembly (16). 2. A general-purpose combined wire lifter for live work according to claim 1, characterized in that: the top of the clamp body (1) is symmetrically provided with a groove-shaped first branching hook (2) ; The second adjustment coupling hole (7) is flexibly connected to the top end of the long branching hook assembly (6), and the long branching hook assembly (6) includes a branching hook long rod (17), so The branching hook rod (17) is movably connected with a branching hook connecting rod (18) for lengthening the branching hook rod (17), and the end of the branching hook rod (17) is provided with a second Quarter hooks (15). 3. A general-purpose combined wire lifter for live work according to claim 2, characterized in that: the double branching hook assembly (10) includes a vertically movably connected short rod (11) of the branching hook and the splitting hook middle rod (12), the ends of the splitting hook short rod (11) and the splitting hook middle rod (12) are respectively provided with a second splitting hook (13) and a third splitting hook (14 ). 4. A general-purpose combined wire lifter for live work according to claim 3, characterized in that: the movable connection includes screw connection and fixation. 5. A general-purpose combined wire lifter for live work according to claim 4, characterized in that: the short wire splitting hook assembly (16) includes a wire splitting hook ultra-short rod (19) and is arranged on the The fifth branching hook (20) at the end of the branching hook ultra-short bar (19). 6. A general-purpose combined wire lifter for live work according to claim 5, characterized in that: the first wire-dividing hook (2), the second wire-dividing hook (13), the third wire-dividing hook (14), the fourth thread hook (15) and the fifth thread hook (20) are all U-shaped hooks; the length of the branch hook long rod (17) is longer than the thread branch hook rod (12) The length of the middle rod (12) of the wire-splitting hook is greater than the length of the short rod (11) of the wire-splitting hook, and the length of the short rod (11) of the wire-splitting hook is longer than the ultra-short rod of the wire-splitting hook (19) length. 7. A general-purpose combined wire lifter for live work according to claim 1 or 2, characterized in that: several of the first adjustment coupling holes (5) are on the same horizontal plane and at the same distance; The adjustment coupling holes (7) are located on the same horizontal plane below the first adjustment coupling hole (5); the number of the first adjustment coupling holes (5) on the left and right sides of the clamp body (1) There are three, and the number of the second adjustment coupling holes (7) on the left and right sides of the clamp body (1) is two. 8. A general-purpose combined live wire lifter according to claim 1 or 2, characterized in that: there is an internal thread channel in the middle of the clamp body (1), and the internal thread channel is externally connected to the hydraulic pressure. device. 9. A general-purpose combined wire lifter for live work according to claim 2, characterized in that: the fixture main body (1), the long branch line hook assembly (6), and the double line branch hook assembly The material of (10) and the short branch hook assembly (16) is high-strength aluminum alloy, and the model of the high-strength aluminum alloy is 7A04. 10. The general-purpose combined live wire lifter according to claim 4, wherein the screw is made of high-strength alloy steel, and the model of the high-strength alloy steel is 30CrMnSiA.