RU216543U1 - Mobile tower of power transmission line - Google Patents

Abstract

The utility model relates to the field of electric power industry and is intended for use in emergency recovery work on power lines. The design of the mobile support contains a base, a spatial hinge with two mutually perpendicular rotary axes, a stand fixed in a vertical position by cable braces, the length of which is regulated by lanyards and chains attached to the stand and base parts. The support post is made of two parallel identical rectangular fiberglass profiles connected through crossbars protruding beyond the profiles by 20-25 cm. traverse. The mobile support is recommended for use on power lines with voltage up to 10 kV. 5 z.p. f-ly, 2 ill.

Description

Technical field

The utility model relates to the field of electric power industry, in particular to the structures of temporary mobile power transmission towers for use in emergency repair and restoration work.

State of the art

Known quick support power lines [RU 183313, IPC E04H 12/02, publ. 09/08/2018], containing a rack with a traverse attached to it, connected to four mutually perpendicular pairs of stops and braces located one under the other, characterized in that the opposite pairs of stops are connected to the top of the rack by lateral surfaces hingedly common axes, opposite pairs of braces are similarly connected to the lower part of the rack, the stops consist of two overlapped parts along the length, and the fixation of the stops and braces in contact with the sidewalls is carried out with clamps.

The disadvantage of the design is its large weight, which complicates and slows down its installation at the installation site.

Known quick support power lines [RU 196635, IPC E04H 12/02, publ. 03/11/2020], containing a base of two pairs of interconnected beams located in the longitudinal and transverse directions relative to the axis of the line, as well as a rack, the lower part of which is pivotally connected to the middle of the longitudinal beams, and the upper part, by means of braces, to the ends of the transverse beams of the base, characterized in that the rack consists of two fiberglass elements of the same profile, connected on one side by crossbars, and on the other - by braces located along the axis of the line.

The disadvantage of the design is the complexity of the design of the rack, the possibility of cracks at the ends of the crossbars during bending or torsion deformations.

Known prefabricated and dismantled support overhead power lines [RU 206116, IPC E04H 12/02, publ. 08/24/2021], including a base, consisting of the following elements: a base plate, including a welded metal structure made of a plate, four corners, a flange for attaching the section, and four flanges for attaching two articulated legs and two legs; base frame, including a welded metal structure of two legs, two articulated legs, four links, sets of fixing bolts and washers for fastening the legs and links, while the legs consist of a welded metal structure of corners and two sectors for fastening the legs; sections, in a minimum number of three pieces, each of which consists of a metal hollow pipe with flanges welded at the ends, reinforced ribs in the form of scarves, a set of fixing bolts and washers; upper section, consisting of a metal hollow pipe with a flange welded from the lower end, reinforced with ribs in the form of scarves, from the upper end of the plug, a set of fixing bolts and washers, while at the top of the upper section three crossbars for suspensions and four mutually perpendicular hooks are welded, on which guys are installed, each of which is a device in the form of a loop, in which the cable is stored, while the sections, in a minimum number of three pieces, and the upper section are sequentially fixed to each other through the flanges with sets of fixing bolts and washers and, as an assembly, form a rack of a pre-fabricated and dismantled support an overhead power line, which is installed on the base through a flange with a set of fixing bolts and washers; a lanyard, which is a metal pin with lugs at the ends, mounted on the leg of the support; toes fixing the legs, which are metal cylindrical rods, narrowed on one side and fixed on the axis with the tongue on the other side; pins for fixing the articulated legs, which are metal cylindrical rods, narrowed on one side and fixed on the axis with the tongue on the other side, while each articulated leg is equipped with an independent adjustment mechanism in the form of an adjustable sector and is installed in the lugs of the base frame using a pin, and the position of the adjustable sectors of the articulated leg are fixed in the eyelets of the leg using a finger.

The downside of the leg is the extra mass of the leg due to the use of a steel structure, as well as the complexity of the installation, requiring adjustment of each articulated leg. The support is applicable when installing on an uneven surface without leveling the site. At the same time, the complexity of manufacturing the support structure increases the cost, which is not justified when carrying out emergency recovery work in a flat area.

Known fast-mounted lightweight support of composite materials for the production of emergency recovery work on the overhead line 35-220 kV (options) [RU 2754615, IPC E04H 12/02, publ. 09/06/2021], which is a collapsible structure containing sections, a brace, a crossbar and a through assembly, terminated with steel flanges and made of unified modules connected by gaskets, while the modules are made of a polymer composite material, including jumpers, sections articulation joints, installation tool, while

in the first version, a quick-mounted lightweight support for emergency recovery work on overhead lines is an intermediate support in the first version, which includes a base consisting of permanently connected channels, on which a yoke and a strut base are installed, sections are mounted on the yoke, on the strut base a brace is installed, while the upper part of the sections

connected by a crossbar, to the middle of which a strut is fixed with the upper part, which, with the help of a section articulation unit, which includes an upper strut, a strut and a lower strut, is connected to the sections, while a jumper is installed between the sections, and a through assembly terminated by flanges is fixed to the upper ends of the sections on which traverses and an average traverse with a suspension plate are installed, while all sections, a brace, a crossbar and a through assembly consist of modules connected by gaskets, and the intermediate support in the first version is equipped with an installation device, including a ladder, a mounting rack, guy cables and knots of fastening of cables-braces;

in the second version, the quick-mounted lightweight support for emergency recovery work on overhead lines is an intermediate support in the second version, which includes a base consisting of integrally connected channels, on which the yoke and strut base are installed, sections are mounted on the yoke, on the strut base a strut is installed, while the upper part of the sections is connected by a crossbar, to the middle of which the strut is fixed with the upper part, which, with the help of the section articulation unit, which includes the upper strut, the strut and the lower strut, is connected to the sections, while a jumper is installed between the sections, and to the upper a through assembly is fixed to the ends of the sections, terminated by flanges, on which traverses and an average traverse with a suspension plate are installed, while all sections, a brace, a crossbar and a through assembly of an intermediate support in the second version consist of modules hermetically connected by gaskets, and the intermediate support in the second the version is equipped with an installation device, including a ladder, a mounting rack, braces, an installation support, which consists of a central section, the central part connected to the base, to which short sections are docked perpendicularly at an equal distance from the base, the edges of which are joined to permanently connected channels, along the edges of all sections of the mounting support, platforms are installed to which guy cables are attached, while the edges of the sections of the mounting support are terminated with flanges;

in the third version, a quick-mounted lightweight support for emergency recovery work on overhead lines is an anchor, pass-through support, which includes a base consisting of permanently connected channels, on which a fork and a strut base are installed, sections are mounted on the yoke, mounted on the base of the strut strut, while the upper part of the sections is connected by a crossbar, to the middle of which the strut is fixed with the upper part, which, with the help of the section articulation unit, which includes the upper strut, the strut and the lower strut, is connected to the sections, while a jumper is installed between the sections, and to the upper ends sections, a through assembly is fixed, terminated by flanges, while all sections, a strut, a crossbar and a through assembly consist of modules connected by gaskets, and the anchor, pass-through support is equipped with an installation device, including a ladder, a mounting rack, cables-braces and attachment points for cables-braces ;

in the fourth version, a quick-mounted lightweight support for emergency recovery work on overhead lines is an anchor, angular support in the first version, which includes a base consisting of permanently connected channels, on which a fork and a strut base are installed, sections are mounted on the fork, on the strut base is installed with a strut, while the upper part of the sections is connected by a crossbar, to the middle of which the strut is fixed with the upper part, which is connected with the sections by means of the section articulation unit, which includes the upper strut, the strut and the lower strut, while jumpers are installed between the sections, and a through assembly is fixed to the upper ends of the sections, terminated by flanges, while all sections, a strut, a crossbar and a through assembly consist of modules connected by gaskets, and the anchor, corner support in the first version is equipped with an installation device, including a ladder, a mounting rack, cables - braces and knots kr brace cables;

in the fifth version, a quick-mounted lightweight support for emergency recovery work on overhead lines is an anchor, angular support in the second version, which includes a base consisting of permanently connected channels, on which a fork and a strut base are installed, sections are mounted on the fork, on the strut base is installed with a strut, while the upper part of the sections is connected by a crossbar, to the middle of which the strut is fixed with the upper part, which is connected with the sections by means of the section articulation unit, which includes the upper strut, the strut and the lower strut, while jumpers are installed between the sections, and a through assembly terminated by flanges is fixed to the upper ends of the sections, while all sections, the strut, the crossbar and the through assembly of the intermediate support in the second version consist of modules hermetically connected by gaskets, and the anchor, pass-through support in the second version is equipped with an installation device, including a ladder, a mounting rack, braces and an installation support, which consists of a central section, the central part connected to the base, to which long sections are attached perpendicularly at an equal distance from the base with their central parts, the edges of which are joined to permanently connected channels, along the edges of all sections of the mounting support, platforms are installed to which guy cables are attached, while the platforms are equipped with weighting agents, and the edges of all sections of the mounting support are terminated with flanges.

The disadvantage of the support is the complexity of the design and high cost, justified when used only in hard-to-reach areas, such as marshy, rugged, mountainous terrain.

The essence of the utility model

The technical result of the claimed utility model is to increase the strength of the temporary support of power lines for use in emergency repair and restoration work.

The technical result is achieved through the use of a mobile transmission line support, including a base, a spatial hinge and a stand fixed in a vertical position by cable braces, the length of which is regulated by lanyards and chains attached to the stand and the base, while the stand is made of two parallel identical rectangular profiles made of fiberglass, connected through the cross, protruding beyond the rectangular profiles of fiberglass by 20-25 cm, while the lower axis of the spatial hinge is installed perpendicular to the traverse, and the upper axis of the spatial hinge is installed parallel to the traverse.

The base can be made of steel or fiberglass pipes of a round or rectangular profile, as well as wooden bars.

Brief description of the drawings

In FIG. 1 shows a general view of the mobile support.

In FIG. 1 adopted the following designations:

1. Foundation;

2. Spatial hinge;

3. Rack;

4. Crossbar;

5. Traverse;

6. Insulator;

7. Cable stretching;

8. Lanyard;

9. Chain;

10. Eyebolt;

11. Eye nut.

In FIG. 2 shows a spatial hinge in various projections.

In FIG. 2, the following designations are adopted:

1. Foundation;

2. Spatial hinge;

3. Rack;

4. Crossbar;

12. Lower axle;

13. Upper axle.

Implementation of the utility model

Rack 3 (Fig. 1 and 2) of the support is made of identical rectangular fiberglass pultrusion profiles, connected to each other through 30-35 cm by crossbars 4 (Fig. 1 and 2), protruding beyond the profiles by 20-25 cm. Such distances are provided with on the one hand, the necessary strength of the joints, on the other hand, the convenience of lifting the installers onto the supports, since the crossbars also perform the function of a ladder. To improve the safety of the installers at the ends of the crossbars 4 (Fig. 1 and 2) additional stops can be vertically fixed.

The base 1 (Fig. 1 and 2) of the support can be made of steel or fiberglass pipes of a round or rectangular profile, as well as wood.

Spatial hinge 2 (Fig. 1 and 2) is an eye with two mutually perpendicular axes. The lower axis 12 (Fig. 2) connects the hinge 2 (Fig. 1 and 2) with the base 1 (Fig. 1 and 2), and the upper axis 13 (Fig. 2) connects the hinge 2 (Fig. 1 and 2) with the rack 3 (FIGS. 1 and 2). The lower axle 12 (Fig. 2) is placed perpendicular to the traverse 5 (Fig. 1), and the upper axle 13 (Fig. 2) is placed parallel to the traverse 5 (Fig. 1). This arrangement of axles 12 and 13 (Fig. 2) makes it possible to lift the rack 3 (Fig. 1 and 2) along the power line.

The use of cable braces 7 (Fig. 1) with turnbuckles 8 (Fig. 1) and chains 9 (Fig. 1) at their lower ends makes it possible to ensure the verticality of the rack 3 (Fig. 1 and 2) in a fairly wide range of ground irregularities. Small uneven ground surfaces can be leveled using pieces of lumber placed under the details of the base 1 (Fig. 1 and 2).

It should be noted that the fixing of the claimed mobile support in a vertical position with cable braces 7 (Fig. 1) attached to the rack 3 (Fig. 1 and 2) and the base 1 (Fig. 1 and 2) eliminates the need for drilling, which significantly contributes to the acceleration of the installation process and reduce labor intensity.

To ensure strength and reduce deformation of the racks 3 (Fig. 1 and 2) under the influence of wind loads and ice, cable extensions 7 (Fig. 1) are installed on two tiers along the height of the rack 3 (Fig. 1 and 2).

Installation of the claimed mobile support is carried out as follows. At the initial stage, the base 1 is assembled (FIGS. 1 and 2). First of all, the transverse beams of the base 1 (Fig. 1 and 2) are laid on the soil surface, into which the studs are installed and fixed with nuts. The studs are installed in the lateral position, then the beams are turned up with the studs. Longitudinal beams are put on them, which are also fixed with nuts. If necessary, the alignment of the base 1 (Fig. 1 and 2) is carried out by placing wood scraps under it.

Installation of a spatial hinge 2 (Fig. 1 and 2) is carried out between the middle transverse beams. The connection of the hinge 2 (Fig. 1 and 2) is carried out by the lower axis 12 (Fig. 2), placed in the middle of the transverse bars of the base 1 (Fig. 1 and 2) perpendicular to the traverse 5 (Fig. 1). To the upper axis 13 (Fig. 2), directed parallel to the traverse 5 (Fig. 1), is attached to the lower part of the rack 1 (Fig. 1 and 2).

Then, to the eye nuts 11 (Fig. 1), installed in two levels on the rack 3 (Fig. 1 and 2), cable extensions 7 (Fig. 1) are attached, at the ends of which lanyards 8 (Fig. 1) and chains are attached 9 (FIG. 1).

Before lifting rack 3 (Fig. 1 and 2) its upper end is manually raised to a height of 1.3-1.5 m and placed on a stand. The two upper extensions 7 (Fig. 1) are connected to the eyebolts 10 (Fig. 1) mounted on the ends of the transverse beams of the base 1 closest to the stand (Fig. 1 and 2).

Rise of the rack 3 (Fig. 1 and 2) is carried out "manually" by two installers for the two remaining top extensions 7 (Fig. 1) or a separate cable using a manual winch. After installing the rack 3 (Fig. 1 and 2) in a vertical position, extensions 7 (Fig. 1) are attached to the eye nuts 11 (Fig. 1) and with the help of turnbuckles 8 (Fig. 1) and chains 9 (Fig. 1 ) the verticality of the rack 3 (Fig. 1 and 2) is fixed along the plumb line. After that, the fixing and adjustment of the lower stretch marks 7 (Fig. 1) is carried out.

The estimated mass of the rack 3 (Fig. 1 and 2), made of fiberglass products of domestic production, intended for operation at wind loads up to 25 m/s, does not exceed 50 kg (excluding the mass of stretch marks 7 (Fig. 1)), which is significantly makes it easier to lift.

The claimed mobile support is recommended for use during repair and restoration work on power lines with voltage up to 10 kV.

Claims (6)

1. A mobile transmission line support containing a base, a spatial hinge and a stand fixed in a vertical position by braces, the length of which is regulated by lanyards and chains attached to the stand and base parts, characterized in that the stand is made of two parallel identical rectangular fiberglass profiles, connected through crossbars protruding beyond the profiles by 20-25 cm, while the lower axis of the spatial hinge is installed perpendicular to the traverse, and the upper axis of the spatial hinge is installed parallel to the traverse. 2. Mobile support of the power line according to claim 1, characterized in that the base is made of steel pipes. 3. Mobile power line support according to claim 1, characterized in that the base is made of fiberglass pipes. 4. Mobile power line support according to claim 1, characterized in that the base is made of wooden bars. 5. Mobile support of the power line according to paragraphs. 2 and 3, characterized in that the base is made of round tubes. 6. Mobile support of the power line according to paragraphs. 2 and 3, characterized in that the base is made of rectangular tubes.

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