CN109586230B

CN109586230B - Split conductor supporting and fixing fitting

Info

Publication number: CN109586230B
Application number: CN201811550139.8A
Authority: CN
Inventors: 杨国华; 张浩彧; 张国卿; 常林晶; 徐健涛
Original assignee: Pingdingshan Branch Of Henan Special Equpment Safety Inspection Institute; Pingdingshan No1 Middle School; Pinggao Group Co Ltd; State Grid Corp of China SGCC
Current assignee: Pingdingshan Branch Of Henan Special Equpment Safety Inspection Institute; Pingdingshan No1 Middle School; Pinggao Group Co Ltd; State Grid Corp of China SGCC
Priority date: 2018-12-18
Filing date: 2018-12-18
Publication date: 2024-08-02
Anticipated expiration: 2038-12-18
Also published as: CN109586230A

Abstract

The invention relates to a split conductor supporting and fixing fitting, which comprises a bottom plate and a spacer, wherein the bottom plate is used for being fixed on a supporting insulator, the spacer is arranged on the bottom plate, a supporting piece is arranged on the bottom plate and used for supporting and fixing the spacer, a supporting surface is arranged on the supporting piece and used for supporting the spacer, the spacer is detachably and fixedly connected on the supporting surface through a fixing bolt, and mounting holes used for mounting the fixing bolt are formed in the supporting surface and the spacer. During assembly, the spacer rod and the supporting piece are detachably and fixedly connected only through the bolts, and the bolt connection operation is simple, so that the assembly difficulty is reduced and the assembly is simpler compared with the prior art that an operator is required to fix the spacer rod through welding; when the split conductors with different heights are required to be fixed, the spacer can be conveniently detached from the support member, and only one spacer with a proper size is required to be replaced without replacing other components, so that the replacement cost and the overhaul and maintenance cost can be reduced.

Description

Split conductor supporting and fixing fitting

Technical Field

The invention particularly relates to a split conductor supporting and fixing fitting.

Background

Along with the continuous expansion of extra-high voltage transmission line construction, to the galloping condition of extra-high voltage transmission line, research suppresses the device that the transmission line was galloped, has realistic meaning to the safe and stable operation of transmission line, and the wire conductor spacer is the important electric power equipment that keeps many sub-wire intervals, maintains wire balance and reactance balance, also is the important gold utensil that prevents the wire damage in the galloping state.

However, the wire spacer can only play a role in the corresponding spacing, so that when the length of the wire is long, the problem of the lower swing caused by the dead weight of the wire is easy to occur, and therefore, the wire spacer needs to be supported by a supporting hardware fitting. The authorized bulletin number CN106786287A discloses a split conductor support fitting, which comprises a connecting bottom plate, wherein the connecting bottom plate is used for being fixedly connected to a support insulator, two spacer mounting plates are arranged on the connecting bottom plate at intervals along the extending direction of a conductor, the spacers are welded and fixed on the side surfaces of the spacer mounting plates, support rods are welded and fixed between the two spacer mounting plates, namely, the two spacer mounting plates, the two sets of spacers and the support rods form an integrated welding structure, and finally, the welding structure is fixed on the connecting bottom plate by using screws to form the support fitting.

However, the integral welding structure has higher requirements on the skill of workers during manufacturing, and particularly, two sets of spacing bars are required to be welded at the same height, so that the welding difficulty is high, and the assembly operation is inconvenient; secondly, when the height of the split conductor changes and the supporting height of the support hardware fitting is required to change, the whole welding structure can be replaced, and the cost is high.

Among the prior art, the grant bulletin number CN204905815U discloses a wire support fixed fitting and conductor spacer support thereof, including conductor spacer, stand, location base and vaulting pole, wherein the conductor spacer welded fastening is on the side of stand, and the welding has the vaulting pole between two stands, and the stand passes through fastening screw and installs on the location base at last. During installation, the stand column, the spacing rod and the supporting rod are welded into an integrated welding structure, and then the welding structure is installed on the base through the fastening screw.

However, the integral welding structure has higher requirements on the skill of workers during manufacturing, and particularly, two sets of spacing bars are required to be welded at the same height, so that the welding difficulty is high, and the assembly operation is inconvenient; secondly, when the height of the split conductor changes and the supporting height of the support hardware is required to change, the welding structure can only be replaced integrally, the cost is high, the overhaul and replacement of the independent components can not be realized, and the overhaul and maintenance cost is increased.

Disclosure of Invention

The invention aims to provide a split conductor supporting and fixing fitting, which solves the problems of high assembly difficulty, inconvenient assembly operation, high replacement cost and higher overhaul and maintenance cost of the supporting fitting in the prior art when supporting split conductors with different heights.

In order to achieve the above purpose, the technical scheme provided by the invention is as follows:

The utility model provides a split conductor supports fixed fitting, is including being used for fixing the bottom plate on supporting insulator and setting up the conductor spacer on the bottom plate, be provided with on the bottom plate and be used for supporting fixedly the support piece of conductor spacer has the holding surface that is used for supporting the conductor spacer on the support piece, and the conductor spacer passes through fixing bolt detachable fixed connection on the holding surface, all is provided with on holding surface and the conductor spacer be used for the installation fixing bolt's mounting hole, on the support piece the mounting hole is the screw hole, through fixing bolt detachable fixed connection between support piece and the bottom plate, be provided with the perforation that supplies the fastening bolt to pass on the bottom plate, be provided with on the support piece with fastening bolt threaded connection's screw hole, the support piece is the back shaft, sets up the both ends at the back shaft respectively with fixing bolt and fastening bolt complex screw hole, is equipped with on the bottom plate and is used for the countersunk with back shaft connection.

The beneficial effects are as follows: during assembly, the spacer rod and the supporting piece are detachably and fixedly connected only through the bolts, and the bolt connection operation is simple, so that the assembly difficulty is reduced and the assembly is simpler compared with the prior art that an operator is required to fix the spacer rod through welding; when the split conductors with different heights are required to be fixed, the spacer can be conveniently detached from the support member, and only one spacer with a proper size is required to be replaced without replacing other components, so that the replacement cost and the overhaul and maintenance cost can be reduced. The support piece is in threaded connection with the spacer, so that the connecting structure is simplified, the fixing bolt is screwed tightly by the diameter, and the assembly and the disassembly are convenient. The support piece and the bottom plate are detachably and fixedly connected through the bolts, so that the connection structure between the support piece and the bottom plate is simplified, assembly and manufacture are convenient, and when the supported split conductor is only changed in height, the spacer can be replaced without replacing the support piece, and compared with the spacer with more complex replacement structure and higher cost, the replacement cost can be further reduced by replacing the support piece. The supporting piece is arranged as the supporting shaft, so that the structure of the supporting piece is simplified, and the processing and the manufacturing are convenient.

Further, the spacing rod is square, and one side edge of the spacing rod is fixedly matched with the support of the support piece.

The beneficial effects are as follows: one side of the spacer rod is supported and fixed with the supporting piece, so that the assembly is convenient.

Further, the spacer comprises at least four spacer split bodies fixedly connected end to end, grooves are formed in two ends of each spacer split body, and fixing grooves for fixing split conductors are formed in the end portions of two adjacent spacer split bodies in a surrounding mode.

The beneficial effects are as follows: the two ends of the adjacent spacer bodies are enclosed into a fixed groove, so that the manufacturing of the spacer is convenient.

Further, adjacent spacer rod components are fixedly connected through locking bolts and nuts, U-shaped grooves with outwards notches are formed in each spacer rod component, the end parts of the locking bolts and the nuts are located in the U-shaped grooves, and mounting holes in the spacer rods are formed in the bottoms of the U-shaped grooves.

The beneficial effects are as follows: through the locking bolt is fixed, fixed effectual, and convenient fixed operation, locking bolt's tip and nut all are located U type inslot in addition, produce the corona when avoiding the split conductor to pass through the heavy current to arouse active loss and radio interference.

Further, at least two spacers are arranged at intervals along the extending direction of the split conductor, and each spacer is independently arranged.

The beneficial effects are as follows: the split conductor is provided with at least two sets of spacing bars, so that the multi-point support of the split conductor can be formed, the stress concentration on the split conductor is effectively relieved, the stress of the split conductor is improved, and the stability and the reliability of power transmission of the split conductor are improved.

Further, there are at least two supporting members for supporting and fixing each spacer.

The beneficial effects are as follows: through setting up two at least support pieces, make the support conductor spacer more firm, promote stability.

Drawings

Fig. 1 is a schematic structural diagram of a split conductor supporting fitting in embodiment 1 of a split conductor supporting fixing fitting of the present invention;

fig. 2 is a plan view of a split conductor support fitting in embodiment 1 of the split conductor support fixing fitting of the present invention;

Fig. 3 is a schematic structural diagram of a spacer in embodiment 1 of a split conductor supporting and fixing fitting according to the present invention;

Fig. 4 is a top view of the base plate in embodiment 1 of the split conductor supporting fixture of the present invention;

Fig. 5 is a bottom view of the support shaft in embodiment 1 of the split conductor support fixture of the present invention;

fig. 6 is a half cross-sectional view of a support shaft in embodiment 1 of a split conductor support fixture of the present invention;

in the figure, 1-spacer; 2-arc-shaped grooves; 3-a bottom plate; 4-a support shaft; 5-fastening bolts; 6-a fixed groove; 7-locking a bolt; 8-U-shaped grooves; 9-separating the spacer; 10-fixing bolts; 11-countersunk holes; 12-a first threaded hole; 13-a second threaded hole.

Detailed Description

The following describes the embodiments of the present invention further with reference to the drawings.

Embodiment 1 of the split conductor supporting and fixing fitting of the present invention, as shown in fig. 1 to 6, includes a base plate 3, a spacer 1, and a supporting shaft 4 supporting and fixing the spacer 1.

The supporting shaft 4 is of a cylindrical structure with a hexagonal cross section, as shown in fig. 5 and 6, a first threaded hole 12 and a second threaded hole 13 are respectively arranged at two axial ends of the supporting shaft 4, the second threaded hole 13 at the upper end of the supporting shaft 4 is detachably and fixedly connected with the spacer 1 through a fixing bolt 10, as shown in fig. 2 and 4, namely the upper end face of the supporting shaft 4 is a supporting face for supporting the spacer 1, and the first threaded hole 12 at the lower end of the supporting shaft is detachably and fixedly connected with the bottom plate 3 through a fastening bolt 5. The bottom plate 3 is provided with countersunk holes 11 used for being connected with the supporting shafts 4, the bottom plate 3 is provided with two pairs of adjacent countersunk holes 11, the two pairs of countersunk holes 11 are arranged at intervals along the extending direction of the four-split conductor, and each countersunk hole 11 is respectively connected with one supporting shaft 4 through a fastening bolt 5 penetrating upwards. The cross section of the bottom plate 3 is circular, a slotted hole is arranged on the bottom plate 3, and the bottom plate is fixedly arranged with the supporting insulator through the slotted hole.

And each pair of support shafts is connected with one set of spacing rod 1, and the heights of the four support shafts are the same, so that the centers of the two sets of spacing rods 1 are located at the same height during installation. The spacer 1 comprises four spacer split bodies 9 fixedly connected end to end, and as shown in fig. 3, the four spacer split bodies 9 enclose a square frame structure. The ends of the two ends of each spacer body 9 are provided with arc-shaped grooves 2 facing the adjacent spacer bodies 9, and the arc-shaped grooves 2 of the adjacent two spacer bodies 9 enclose a fixing groove 6 for fixing the four-split conductor. A locking bolt 7 is connected between two adjacent spacer rod split bodies 9, and the adjacent spacer rod split bodies 9 are fixedly connected by matching nuts. U-shaped grooves 8 with outwards notches are formed in the outer side faces of the spacer body 9, and the bolt heads of the locking bolts 7 and nuts matched with the locking bolts 7 are respectively located in the U-shaped grooves 8 of the adjacent spacer body 9.

One side of the spacer 1 is detachably and fixedly connected with the support shaft 4 through a fixing bolt 10, the upper end of the support shaft 4 stretches into the U-shaped groove 8, and a through hole for the fixing bolt 10 to downwards penetrate is formed in the bottom of the U-shaped groove 8.

In the embodiment 1 of the split conductor supporting and fixing fitting, as shown in fig. 1, two sets of spacing rods 1 are connected to a four-split conductor, the four-split conductor is fixed and held tightly by using a locking bolt 7, the center distance of the two sets of spacing rods 1 is kept constant, the bottom edges of the two sets of spacing rods 1 are respectively connected with two supporting shafts 4 through fixing bolts 10, then the four supporting shafts 4 are fixedly connected with a bottom plate 3 through fastening bolts 5, and finally the bottom plate 3 is arranged at the top end of an insulator, namely, the aim of fixedly supporting the four-split conductor is achieved.

In this embodiment, there are two support shafts for supporting and fixing each spacer, and in other embodiments, three or more support shafts may be provided, but it should be noted that, when one support shaft is added, the workload is increased during the assembly and disassembly, which causes inconvenience in assembly and disassembly.

In this embodiment, two sets of spacers are provided, and in other embodiments, three or more sets may be provided.

In this embodiment, the fixed connection of the adjacent spacer body is completed through the locking bolt, in other embodiments, a dovetail block may be disposed at one end of the spacer body, a dovetail groove may be disposed at the other end of the spacer body, the adjacent spacer body is fixed by interference fit along the extending direction of the four split conductors by using the dovetail block and the dovetail groove, or a bump may be disposed at one end of the spacer body, a groove may be disposed at the other end of the spacer body, and the adjacent spacer body is fixed by interference fit along the extending direction perpendicular to the four split conductors by using the bump and the groove.

In this embodiment, the spacer rod components of a whole that can function independently sets up, in other embodiments, can integrated into one piece, is equipped with the installing port that supplies four split conductors to pass on the spacer rod, and the installing port is the clamp form, and installing port department still is provided with the lock bolt, through screwing the lock bolt, accomplishes the fixed to four split conductors.

In this embodiment, the spacer is square, and in other embodiments, the spacer may be a cross spacer, and an installation opening through which the wire passes is provided at an end of the cross spacer, and the middle of the cross spacer is supported and fixed with the support member; or the spacer is circular.

In this embodiment, the supporting shaft is connected with the bottom plate through a bolt, in other embodiments, the base is provided with a mounting blind hole, and the supporting member can be directly assembled in the mounting blind hole in an interference manner or the supporting shaft is directly welded and fixed with the bottom plate.

In this embodiment, the supporting member is a supporting shaft, and in other embodiments, the supporting member may be provided as a supporting plate, where the upper end of the supporting plate extends into the U-shaped groove and is fixedly connected with the spacer, and the lower end of the supporting plate is fixedly connected with the bottom plate.

In this embodiment, the mounting hole on the support member is a threaded hole, and in other embodiments, the mounting hole on the support member is a light hole, and the support member may be an L-shaped plate, the vertical side of the L-shaped plate is fixed with the bottom plate, the horizontal side is used for supporting the fixed spacer, the mounting hole is located on the horizontal side, and the spacer is fixedly connected with the horizontal side through a fixing bolt and a nut.

Claims

1. A split conductor support and fixing hardware, comprising a base plate for fixing on a supporting insulator and a spacer rod arranged on the base plate, characterized in that: a support member for supporting and fixing the spacer rod is arranged on the base plate, the support member has a supporting surface for supporting the spacer rod, the spacer rod is detachably fixedly connected to the support surface by fixing bolts, and mounting holes for installing the fixing bolts are arranged on the supporting surface and the spacer rod, the mounting holes on the support member are threaded holes, the support member and the base plate are detachably fixedly connected by fastening bolts, the base plate is provided with through holes for fastening bolts to pass through, the support member is provided with threaded holes threadedly connected to the fastening bolts, the support member is a supporting shaft, and the threaded holes cooperating with the fixing bolts and the fastening bolts are respectively arranged at both ends of the supporting shaft, and the base plate is provided with countersunk holes for connecting with the supporting shaft.

2. The split conductor support and fixing hardware according to claim 1 is characterized in that: the spacer bar is square, and one side of the spacer bar is supported and fixedly matched with the support member.

3. The split conductor support and fixing hardware according to claim 2 is characterized in that: the spacer rod comprises at least four spacer rod split bodies fixedly connected end to end, each spacer rod split body is provided with grooves at both ends, and the ends of two adjacent spacer rod split bodies form a fixing groove for fixing the split conductor.

4. The split conductor support fixing hardware according to claim 3 is characterized in that: adjacent spacer rod splits are fixedly connected by locking bolts and nuts, each spacer rod split is provided with a U-shaped groove with the notch facing outward, the end of the locking bolt and the nut are both located in the U-shaped groove, and the mounting hole on the spacer rod is arranged at the bottom of the U-shaped groove.

5. The split conductor support and fixing hardware according to claim 1, characterized in that: at least two spacer bars are arranged at intervals along the extension direction of the split conductor, and each spacer bar is independently provided.

6. The split conductor support and fixing hardware according to claim 5, characterized in that there are at least two support members for supporting and fixing each spacer rod.