RU2541998C1 - Assembly kit for overhead transmission line pole - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: assembly kit comprises a rack 1 having a carrying plate with openings at the top, extension piece 4, which is made as a pipe section of rectangular cross-section with the base made as a plate fixed at one butt ends with openings, the first beam 7 made as a section of flat-topped profile of normal cross-section with openings in its middle part placed in regard to the profile length, near its middle part 9, at that at ends 10 of the profile there are rigidly fixed parts for attachment of suspended insulators 12; the second beam 13 made as a pipe section of rectangular cross-section, at which one of the ends there is a rigidly fixed part 15 for attachment of a suspended insulator 16. The first beam 7 is made so that it may be placed at the top 3 of rack 1 with placement of the carrying plate of rack 1 in its cavity while extension piece 4 may be placed above the first beam 7 with its base as continuation of rack 1. Openings in the carrying plate of rack 1, in the first beam 7 and at the base of extension piece 4 are made so that they may be matched and tightened by threaded fasteners 18. The second beam 13 is made so that it may be fixed at extension piece 4 from the side of its second butt end orthogonally to longitudinal direction of rack 1 in the same plane with the first beam 7.

EFFECT: widening range of equipment in the form of assembly kit for construction of poles intended for overhead transmission lines, increasing carrying capacity and reliability of poles.

8 cl, 11 dwg

Description

Area of use

The invention relates to the field of electrical equipment, and in particular to a kit for the construction of an overhead power line support, which is used mainly for the construction of intermediate supports of an overhead power line with a voltage of 10 kV based on steel multi-faceted racks.

State of the art

A known kit for the construction of an overhead power line support, comprising a rack mounted vertically, a support element for securing elements for insulated wire fastening, is made in the form of extensions attached to the top of the rack in its continuation and made of two parts, two mounting angles for connecting the elongated parts extensions, two traverses for fastening on an extended extension and connecting its parts, elements for insulated mounting of wires in the form of three suspension insulators (RU 62953 U1, IPC E04H 12/00, 2007).

The extension in the known solution is made in the form of four corners of equal length mounted to form a hollow profile rectangular in cross section with the vertices of the outer corners of the corners at the corners of the profile. The corners are connected with the formation of two parts of the extension in the form of two pairs of angles welded to the outer surfaces of the shelves lying in the same plane on the rods located transversely along the edges and in the middle part of the corners, the rods on the side of one end of the extension corresponding to its top and the rods in the middle part made with threaded ends protruding beyond the corners.

From the side of the extension end mating to the top of the rack, to the outer surfaces of the shelves perpendicular to the shelves to which the rods are welded, a pair of segments of fixing corners are welded by the shelves, in the other shelves of which holes are made. Rod threaded fasteners were passed through these holes to tighten the extension parts to each other in order to clamp the top of the rack to secure the extended extension to it.

One traverse is made in the form of a piece of steel corner with hinges welded at the ends for mounting suspension insulators, as well as with a pair of holes in the middle of one of the shelves for mounting on the extension by means of protruding threaded ends of one pair of rods lying in the longitudinal direction of the extension on the same transverse level . The second traverse is made in the form of a piece of steel corner with a loop welded at one end for mounting suspension insulators, as well as with a pair of holes in one of the shelves from the side of its second end for mounting on the extension by means of protruding threaded ends of another pair of rods. On the protruding threaded ends of the pairs of rods on the other side of the elongated extensions installed a pair of mounting angles.

In this known solution, the traverses are made of a steel corner, which does not satisfy the necessary conditions in strength and in extreme conditions can bend under the action of a high load, for example, under the conditions of “freezing rain”, which will lead to a disruption in the power supply on the power line constructed using such supports.

SUMMARY OF THE INVENTION

The technical result of the present invention is to expand the arsenal of tools in the form of a kit for the construction of supports intended for overhead power lines, to increase the load capacity of the supports, their reliability.

The achievement of this technical result provides a kit for the construction of the support of an overhead power line, which contains:

- a rack having a carrier plate with holes on the top;

- extension, which is made in the form of a pipe segment of rectangular cross section with the base in the form of a plate with holes fixed to one of the ends;

- the first traverse, made in the form of a section of the profile of a U-shaped cross-section with holes in the middle part of the profile, located relative to the length of the profile at its middle part, and at the ends of the profile parts for fastening suspension insulators are rigidly fixed;

- the second traverse, made in the form of a pipe segment of rectangular cross-section, at one end of which is rigidly fixed part for mounting a suspension insulator.

The first traverse is arranged to be located on the top of the rack with the placement of the rack support plate inside its cavity, and the extension is capable of being positioned with the base on top of the first traverse to extend the rack, and the holes in the rack support plate, in the first traverse and at the base of the extension, are arranged to be aligned and tightening with threaded fasteners.

The second traverse is made with the possibility of fixing on the extension from the side of its second end orthogonal to the longitudinal direction of the strut in the same plane with the first traverse.

In the best embodiment of the invention, the second traverse is made in the form of a segment of a pipe of square cross-section, and at its end from the side of the second end on the opposite sides are welding plates fixed in one direction, where the holes are made in them, in the extension on the end from the side of its second transverse holes are made of the end face, and the extension is configured to cover this end of it with plates of the second traverse with the combination of holes in them with transverse holes in the extension for passing threaded fasteners providing a rigid fastening of the second beam on the extension.

Each part of the first traverse for mounting the suspension insulator can be made of a curved rod in the form of a bracket and fixed by welding with mating with free ends with parallel edges of the profile of a U-shaped cross section oriented.

A detail of the second traverse for mounting the suspension insulator can be made curved from a bar in the form of a bracket and fixed by welding with mating with free ends with opposite parallel sides of a pipe segment of square cross section.

In a preferred embodiment of the invention, the suspension insulators are each made in the form of a fiberglass rod with metal terminators with eyelets fixed at its ends, while an electrically insulating body with a series of circular protrusions made of silicone rubber is longitudinally formed around the rod.

Also in a preferred embodiment of the invention, the rack comprises a body in the form of a pyramid surface segment curved from sheet steel, the free edges of which are rigidly connected by a set of straight steel parts, and is configured to be mounted on a pile with fastening by two attachment nodes located at the base of the body at a distance from each other .

A section of a pipe of rectangular cross-section of the extension and a base plate fixed to its end can be additionally connected by four triangular plates with a right angle between the sides by which these triangular plates are each welded to a segment of a pipe of rectangular cross section and to the base plate, and the triangular plates are located at corners outside pipe section of rectangular cross section.

The extension may be made of a pipe segment of square cross-section with an external side dimension identical to the external size of the side of a pipe segment of square cross-section of the second beam.

The implementation of the invention

The possibility of carrying out the invention is confirmed by a specific example of the construction of an overhead power line support constructed from a kit in accordance with the invention. An example is illustrated by drawings:

- figure 1 shows the support of an overhead power line, General view;

- figure 2 is a front view of the upper part with the first and second traverses;

- figure 3 is a side view of the upper part with the first and second traverses;

- figure 4 is an enlarged local section of the node along the threaded fastener that tightens the carrier plate of the rack, the first traverse and the base of the extension;

- figure 5 is a transverse section of the extension with a view of the second beam, plane through the threaded fastener with which the second beam is fixed to the extension;

- in Fig.6 and 7 shows the extension, Fig.6 is a front view, Fig.7 is a cross section with a view of the base;

- Fig. 8 is a second crosshead, side view;

- figure 9 is a first traverse, a view from the side of the end;

- figure 10 is a second traverse, a view from the side of the end;

- figure 11 is a section of the lower part of the rack, a view of one of the two nodes of the rack on the pile.

An overhead power line pole mounted from a kit in accordance with the invention comprises:

- a rack 1 having a carrier plate 2 (figure 2, 4) with holes on top 3;

- extension 4, which is made in the form of a pipe segment of rectangular cross section with base 5 in the form of a plate with holes 6 fixed on one of the ends of the pipe (Fig. 7);

- the first traverse 7, made in the form of a section of the profile of a U-shaped cross section with holes in the middle part 8 (Fig.8) of the profile located relative to the length of the profile at its middle part 9 (Fig.2), and at the ends 10 of the profile are rigidly fixed details 11 (figure 3, 9) for mounting suspension insulators 12;

- the second traverse 13, made in the form of a pipe segment of rectangular cross-section, at the first end 14 of which the part 15 is rigidly fixed for mounting the suspension insulator 16.

The first traverse 7 is located on the top 3 of the rack 1 with the placement of the carrier plate 2 of the rack 1 inside its cavity 17 (Fig. 9), and the extension 4 is located by the base 5 on top of the first traverse 7 during the continuation of the rack 1. At the same time, the holes in the carrier plate of the rack, in the first traverse and the holes 6 in the base 5 of the extension 4 are aligned and pulled together with threaded fasteners 18 (Fig.2, 4). Thus, the carrier plate 2 of the rack 1 is located inside the cavity 17 and is covered by parallel-oriented edges 19 (Fig. 9) of the profile of the U-shaped cross section of the first beam 7.

The second traverse 13 is mounted on the extension 4 from the side of its second end 20 (Fig.6) orthogonal to the longitudinal direction of the rack 1 in the same plane with the first traverse 7.

The second traverse 13 is made in the form of a pipe segment of square cross-section, and at its end from the side of the second end 21, plates 22 protruding in one direction are fixed on opposite sides, where holes 23 are made in them (Fig. 8).

In the extension 4 at the end from the side of its second end 20 there are transverse holes 24 (Fig. 6) and this end (20) covers the plates 22 of the second beam 13 with the holes 23 aligned with the transverse holes 24 in the extension 4 through which are passed threaded fasteners 25 (Fig.2, 5) for hard mounting the second beam 13 on the extension 4.

The extension 4 is made of a pipe segment of square cross-section with an external side size identical to the external size of the side of a pipe segment of square cross-section of the second crosspiece 13, due to which the plates 22 are tightly mated with the second traverse 13 and extension 4.

A segment of a pipe of rectangular cross-section of the extension 4 and a base plate 5 fixed on its end are further connected by four triangular plates 26 (FIGS. 2, 6, 7) with a right angle between the sides by which these triangular plates 26 are each welded to a segment of a pipe of rectangular cross-section and to the base plate 5, and the triangular plates are located at the corners outside the pipe section of a rectangular cross-section of the extension 4.

Each part 11 of the first traverse 7 for mounting the suspension insulator 12 is curved from the bar in the form of a bracket and fixed by welding with mating with free ends 27 with parallel edges 19 (Fig. 9) of the profile of the U-shaped cross section of the first traverse 7.

The detail 15 of the second traverse 13 for mounting the suspension insulator 16 is also curved from the bar in the form of a bracket and fixed by welding with mating with free ends 28 (Fig. 10) with opposite parallel sides 29 of the pipe section of square cross section of the second traverse 13.

The rack 1 contains a housing 30 (figure 1, 11) in the form of a pyramid surface segment curved from sheet steel, the free edges 31 of which are rigidly connected by a set of straight steel parts 32, and is configured to be mounted on a pile 33 with two mounted at the base of the housing on distance from each other by attachment points. Each mounting unit includes two abutment angles 34, studs 35, clamp 36, and the supporting segment of the ring 37, fixed rigidly inside the cavity of the housing 30 of the rack 1. The design of such racks is described in detail in the description of patent document RU 2478159 C1 (IPC E04H 12/08, 27.03 .2013), as well as in the full description of the patent document RU 120449 U1 (IPC E04H 12/08, 2012).

Suspension insulators 12, 16 are each made in the form of a fiberglass rod with metal terminators with eyes fixed to its ends, while an electrically insulating body with a series of circular protrusions made of organosilicon rubber is longitudinally formed around the rod. The design of such suspension insulators is described in detail in the full description of the patent document RU 103226 U1 (IPC H01B 17/32, 2011). This design of the suspension insulators 12, 16 allows to achieve their reliability, durability, simplify transportation, reduce the likelihood of damage during transportation, allows you to practically install the suspension insulators 12, 16 of the traverse 7, 13 in the workshop, without fear of damage to the insulators during transportation of the support assembly, which simplifies the installation of overhead power transmission towers at the construction site.

Rack 1, extension 4, first 7 and second 13 of the traverse in the above embodiment are made of steel and, in cases not mentioned above, their parts are connected detachably by threaded elements or other known methods, or one-piece - by welding. The installation of the overhead power line poles mounted from the kit in accordance with the present invention is carried out by known methods, and all parts are manufactured using known technologies, taking into account the materials of the parts and their configuration. The presented example is not exhaustive. Other options for the practical implementation of the invention are possible, which will correspond to the scope of patent rights in accordance with the independent claim. In this case, the composition of the kit for the construction of an overhead power line support may also include other elements not specified in the present description.

Claims (8)

1. A kit for constructing an overhead power line support, comprising
a rack having a carrier plate with holes on top,
extension, which is made in the form of a pipe segment of rectangular cross section with the base in the form of a plate with holes fixed to one of the ends,
the first traverse, made in the form of a section of the profile of a U-shaped cross-section with holes in the middle of the profile, located relative to the length of the profile at its middle part, and at the ends of the profile are fixed parts for attaching suspension insulators,
the second traverse, made in the form of a piece of pipe of rectangular cross-section, at one end of which is rigidly fixed part for mounting a suspension insulator,
the first traverse is arranged to be positioned on top of the rack with placement of the rack support plate inside its cavity, and the extension is capable of being placed with the base on top of the first traverse to extend the rack, and the holes in the rack support plate, in the first traverse and at the base of the extension, are made with the ability to combine and tighten with threaded fasteners,
and the second traverse is made with the possibility of fixing on the extension from the side of its second end orthogonal to the longitudinal direction of the strut in the same plane with the first traverse. 2. The kit according to claim 1, characterized in that the second traverse is made in the form of a pipe segment of square cross section, and at its end from the side of the second end on the opposite sides by welding are fixed plates protruding in one direction, where the holes are made in them, in lateral openings are made to the extension at the end from the side of its second end, and the extension is made with the possibility of covering this end of it with plates of the second traverse with matching holes in them with transverse openings in the extension for passing the threads fastening elements, providing a rigid attachment to a second crosspiece extension. 3. The kit according to claim 2, characterized in that each detail of the first traverse for mounting the suspension insulator is bent from the bar in the form of a bracket and fixed by welding with mating with free ends with parallel edges of the profile of a U-shaped cross section. 4. The kit according to claim 3, characterized in that the part of the second traverse for mounting the suspension insulator is bent from the bar in the form of a bracket and fixed by welding with mating with free ends with opposite parallel sides of the pipe section of square cross section. 5. A kit according to any one of claims 1 to 4, characterized in that the suspension insulators are each made in the form of a fiberglass rod with metal ends with eyes fixed to its ends, while an electrically insulating body with a series of circular protrusions made longitudinally around the rod is made of silicone rubber. 6. The kit according to claim 5, characterized in that the rack comprises a body in the form of a pyramid surface segment curved from sheet steel, the free edges of which are rigidly connected by a set of straight steel parts, and is configured to be mounted on a pile with two fixed at the base of the housing on distance from each other by attachment points. 7. The kit according to claim 6, characterized in that the pipe section of the rectangular cross-section of the extension and the base plate fixed to its end are further connected by four triangular plates with a right angle between the sides by which these triangular plates are each welded to the pipe section of the rectangular cross section and the base plate, and the triangular plates are located at the corners outside the pipe segment of rectangular cross section. 8. The kit according to claim 7, characterized in that the extension is made of a pipe segment of square cross-section with an external side size identical to the external size of the side of a pipe segment of square cross-section of the second beam.

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