RU168521U1 - POWER SUPPORT RACK - Google Patents

Abstract

The utility model relates to construction, namely the construction of power lines. The technical result consists in expanding the arsenal of technical equipment related to racks for the construction of supports of power lines. The technical result is achieved by the fact that in the rack of the power line support, made of two sheet bent section profiles, having a variable cross-sectional height, the segments are sectionally rigidly interconnected, and the cross-section is in the form of a hexagon formed from two halves of a regular hexagon , divided in the middle of its opposite sides, while the pairs of extreme sections of the rack segments along its entire length are located at a distance L from each other and are rigidly connected between Second, according to the utility model strut segments are joined inside the diaphragm stiffness, and each diaphragm is formed as a plate with a polyhedral outer contour. Rack sections are rigidly connected end-to-end, and at the joints, on the inside, the sections are fastened with stiffeners made in the form of curved plates that mirror the angles of the inner contour of the section section, each plate rigidly connected to both docked sections. At the same time, at the base of the rack there are two fasteners spaced apart by the length of the rack for mounting the rack on the cylindrical surface of the pile, each fastener contains two fasteners rigidly transversely mounted on the inner surfaces of the rack segments, and each fastener is made in the form of a complex plate contour along the outer contour of the repeating

Description

Technical field

The utility model relates to construction, namely to the construction of power lines, in particular to long bearing structures, for example, power transmission tower poles.

The level of technology.

Widely known steel transmission line poles with racks of multifaceted cross-section, made of solid bent sheet profile (see. Handbook of high-voltage electrical installations / Ed. By I. A. Baumstein, S. A. Bazhanov. - M .: Energoatomizdat, 1989 ., p. 425-426, Fig. 8.31).

Known rack transmission line support according to the patent for utility model No. 34192 [1], made of two bent sheet profiles having a variable cross-sectional height. The profiles are interconnected, and the cross section has the shape of an elongated hexagon formed from two halves of a regular hexagon, divided in the middle of its opposite sides, which are interconnected by slats or braces. In this case, the distance in the light between the halves of the regular hexagon is selected from the condition that the ratio of the moments of resistance of the cross section of the composite rod of the rack along the axes of the Cartesian coordinates is within 1.2 ... 2.0.

 Known rack support overhead power lines according to the patent for invention No. 2386766 [2], which is made of at least two segments in the form of parts of the side surface of the pyramid, rigidly connected along their side sides. At the bottom of the rack are at least two spaced apart along the length of the rack assembly for mounting the rack on a pile made in the form of a pipe. Each of the nodes for fastening the rack on the pile includes at least two fastening elements in the form of ring segments rigidly transversely mounted transverse to the inner surfaces of the rack segments, mating in the sections of the outer contour with the inner surfaces of the rack segments and having inner parts in the form of circle parts for mates with the side surface of the piles. Transverse at the level of the location of the nodes for fastening the rack on a pile in the interface zone of the segments, the nodes of the coupler of the ring segments are rigidly fixed. Each node of the coupler of the segments of the rings is made in the form of a pair of segments of the coupling angles located by the shelves opposite each other, in which holes are made along one axis through which threaded fasteners are passed. The edges of the segments located in the longitudinal direction of the strut are overlapped. Along these edges, segments of corners are rigidly fixed to the segments, arranged in pairs by shelves opposite each other, while holes located on the same axis are made on opposite axes of the pairs of angles, through which threaded fasteners are passed to connect the segments to each other. Typically, the rack is made of at least two consecutively rigidly connected sections. Sections in the mating zone can be connected by a set of plates located on the surfaces of the faces of the pyramid, with each set plate being welded to both adjacent sections. The rack segments are made of sheet steel, and a piece of steel pipe is used for the pile in the form of a pipe. In the best case, the stand is made in the form of an octagonal pyramid.

Known multi-faceted power pole support according to the patent for utility model No. 79600 [3], which contains a pair of telescopically joined hollow multi-faceted sections, in which the upper part of the lower section 1 is covered by the lower part of the upper section 2, and the diaphragm stiffness 3 fixed inside the upper part of the section 1. The diaphragm 3 is made in the form of a ring with a multifaceted external contour. The faces 4 of the diaphragm 3 are separated by cutouts 5, the radii of which are more than 25 mm. The width of the diaphragm 3 is not less than 0.1 of the average inner diameter of the upper part of the lower section 1, but more than 100 mm, and the thickness is not less than 15 mm. The diaphragm 3 is fixed by welding.

The problem to which the claimed utility model is directed is to increase the stability of the hexagonal section design, reduce the complexity of its manufacture and installation, and increase manufacturability.

The technical result consists in expanding the arsenal of technical equipment related to racks for the construction of supports of power lines.

Utility Model Disclosure

The technical result is achieved by the fact that in the rack of the power line support, made of two sheet bent section profiles, having a variable cross-sectional height, the segments are sectionally rigidly interconnected, and the cross-section is in the form of a hexagon formed from two halves of a regular hexagon , divided in the middle of its opposite sides, while the pairs of extreme sections of the rack segments along its entire length are located at a distance L from each other and are rigidly connected between Second, according to the utility model strut segments are joined inside the diaphragm stiffness, and each diaphragm is formed as a plate with a polyhedral outer contour. In this case, the sections of the rack are rigidly connected end-to-end, and at the joints, on the inside, the sections are fastened by stiffeners made in the form of curved plates that mirror the angles of the inner contour of the section section, with each plate rigidly connected to both docked sections. At the same time, at the base of the rack there are two fasteners spaced apart by the length of the rack for mounting the rack on the cylindrical surface of the pile, each fastener contains two fasteners rigidly transversely mounted on the inner surfaces of the rack segments, and each fastener is made in the form of a complex plate a contour along the outer contour repeating the corresponding contour of the half hexagon of the inner surfaces of the rack segments, and the inner contour of the fastener in the form of a part of a circle for interfacing with a pile surface. At the same time, fasteners are fixed to the segments with scarves.

At the same time, each fastener assembly for installing the rack on the pile contains two coupler nodes located at the level of the fastening elements on opposite sides of the rack segments, while each coupler assembly is made in the form of two pairs of stop segments rigidly fixed at neighboring extreme sections. In this case, each emphasis is made in the form of a corner piece, each one shelf is welded from the outside to the outer surface of the corresponding extreme portion of the rack segment, and a hole is made in the second shelf to allow the stops to be pulled together by threaded fasteners passed through holes in the shelves of both stops.

At the same time, in the upper part, the strut segments are connected by a diaphragm, on the surface of which the traverse fastening element is rigidly fixed.

At the same time, over the entire height of the rack, the segments are rigidly interconnected by transverse overlays in the form of stiffness angles welded by the edges of the shelves with the orientation of the internal cavity to the segments along the outer surfaces of the extreme sections of the rack segments, with the formation of extended welds.

Brief Description of the Drawings

Utility Model List

Figure 1 - rack support power lines, General view.

Figure 2 is a view A of the rack in figure 1.

Figure 3 is a transverse hexagonal section of the rack.

Figure 4 is a view of B in figure 1.

5 is a cross-section bB in FIG. one.

6 - element 8.1, 8.2 securing sections.

Fig.7 is a cross section GG of the lower part of the rack between the attachment points 14 of the rack on the pile, in Fig.1.

Fig. 8 is a view B in fig. 1, the rack mount on the pile.

Fig.9 is a cross section DD section of the rack in figure 1 by a plane passing in the zone of connection of two adjacent sections of the rack.

Figure 10 - section EE of the upper section of the rack.

FIG. 11 - aperture diaphragm.

Fig - diaphragm (side view) of the upper part of the rack.

Fig - view of the rack 1 mounted on the pile 6.

List of items

1 - rack;

2 - rack segment;

3 - rack segment;

4 - clearance L between segments;

5 - fixing connection of the segments;

6 - pile;

7 - extreme sections of the rack segments;

8 - 8.1, 8.2 - fastening elements;

9 - threaded fasteners;

10, 11 - emphasis;

12 - diaphragm stiffness of the middle sections;

13 - diaphragm stiffness of the upper section;

14 - attachment points;

15 - coupling angles;

16 - pieces of corners;

17 - lower section;

18 - the first middle section;

19 - the second middle section;

20 - upper section;

21 - a shelf of an emphasis;

22 - shelf stop with a hole;

23 - stiffener;

24 - scarf;

25 - diaphragm pipe.

Utility Model Implementation

The rack 1 is installed on the pile 6, which is made of a piece of pipe installed in the ground (Fig. 13).

The rack 1 (Fig. 1, 2) is made of two bent sheet profiles-segments 2, 3 (Fig. 3) and has a variable cross-sectional height in the shape of a hexagon formed from two halves of a regular hexagon divided in the middle of its opposite sides (Fig. .3). Pairs of extreme sections 7 of segments 2, 3 are located at a distance L (4) from each other over the entire height of the rack. The distance L is selected depending on the operating conditions of the rack.

 For ease of transportation and installation, the rack consists of sections, for example: lower section 17, first middle section 18, second middle section 19, upper section 20 (figure 2), rigidly connected end-to-end. At the junctions, on the inside, the sections are fastened by stiffeners 23 made in the form of curved plates that mirror the angles of the inner contour of the section section (Fig. 5), with each plate 23 being welded to both joined sections. The plates form a closed symmetrical profile that effectively perceives loads along the coordinate axes. Preferably, the plate was made with a ratio of the width of the scan to a length of approximately 1: 8.

Throughout the entire height of the rack segments 2, 3 edges 7 are rigidly interconnected by plates in the form of angles 5 stiffness (figure 1). Corners 5 are welded by the edges of the shelves with the orientation of the internal cavity to segments 2 and 3 along the outer surfaces of the extreme sections 7 of the segments 2 and 3 of the rack with the formation of extended welds. Corners 5 stiffness are transverse to segments 2 and 3 of the rack (figure 4)

The height segments of the rack are connected by stiffness diaphragms 12, fixed inside the section of the rack 1 (Fig. 1). Each diaphragm 12 is made in the form of a plate with a multifaceted external contour (Fig. 11). Each diaphragm 12, 13 is fixed inside the section by welding (Fig.9).

In the upper part, the rack segments are connected by a diaphragm, on the surface of which a traverse fastening element is made in the form of a pipe 25 (FIG. 10, 12).

At the base of the rack are two spaced apart by the length of the rack of the attachment node 14 for installing the rack on the cylindrical surface of the pile (Fig.1, 2). Each mount contains two fasteners 8.1, 8.2, rigidly transversely mounted on the inner surfaces of the segments 2 and 3 of the rack 1 (Fig.7). Each fastener 8.1, 8.2 is made in the form of a plate of complex contour (Fig.6). The fastener 8.1, 8.2 along the outer contour repeats the corresponding contour of the half hexagon of the inner surfaces of the segments 2 and 3 of the rack 1. The inner contour of the fastener 8.1, 8.2 is made in the form of a part of a circle for interfacing with the pile surface. Fasteners are fixed to segments 2 and 3 with scarves 24 (Fig. 8).

Each mounting unit contains two coupler nodes (Fig. 7) located at the level of the mounting elements 8.1 and 8.2 on opposite sides of the rack body, each of which is made in the form of two pairs of segments 2, 3 of the stops 10, 11 rigidly fixed on adjacent extreme sections 7 (Fig. 7, 8). Each stop 10, 11 is made in the form of a piece of corner, each with one shelf 21 (Figs. 7, 8) is welded from the outside to the outer surface of the corresponding extreme section 7 of segment 2 or 3 of the rack, and a hole is made in the second shelf 22 to allow pulling each other friend stops 10, 11 threaded fasteners 9, passed through holes in the shelves 22 of both stops 10, 11, which facilitates the installation of the rack on the pile.

The installation of the rack supports of the power line is as follows.

In the factory, with the help of transverse overlays, the profiles of the support strut are connected, observing the design distance L in the light between segments that are half of a regular hexagon. The stiffness diaphragms 12, mounted inside the rack section, as well as the stiffening elements 23, made in the form of curved plates, increase the stiffness of the rack. As a result, a rigid frame of a power transmission tower post is formed.

The rack 1 prepared for installation is mounted on a pre-installed pile 6, which is located between the fasteners 14 until the end of the pile stops in elements 8.1, 8.2, after which the pairs of elements 8.1, 8.2 of both fasteners 14 are pulled together by threaded elements 9, the stops 10 and 11 come together, and the distance L is reduced, due to which the stand is rigidly fixed on the pile. Elements 8.1 and 8.2 encircle the pile at two points, as a result of which the axis of the support column exactly coincides with the axis of the pile.

Industrial applicability

All rack parts are manufactured using the usual technologies for parts of such structures.

The manufacture of rack profiles from measured length sections allows the production of supports of any length using only standard equipment (sheet bending machines up to 3000 mm wide), saving money on the machine park and equipment. The manufacturability of production, savings on capital investment are increasing. Stiffeners (pos. 23) reinforce the junction of the sections, diaphragms (pos. 9, 12) increase the resistance of the hexagonal profile to deformation under bending loads.

Information sources

1. Utility Model Patent No. 34192, Power transmission tower support. Published November 27, 2003 - the closest analogue.

2. Patent for invention No. 2386766, Stand of a support of an overhead power line. Published on April 20, 2010 .

3. Utility Model Patent No. 79600, Multifaceted Power Pole Support Rack. Published: January 10, 2009.

Claims (7)

1. The support of the power line support, made of two bent sheet profiles, segments, having a variable cross-sectional height, the segments being rigidly connected to each other, and the cross-section has the shape of a hexagon formed from two halves of a regular hexagon, divided in the middle of its opposite sides, while the pairs of extreme sections of the rack segments along its entire length are located at a distance L from each other and are rigidly interconnected, characterized in that the rack segments and Inside connected diaphragms rigidity, and each diaphragm is formed as a plate with a polyhedral outer contour; while the sections of the rack are rigidly connected end-to-end, and at the joints, on the inside, the sections are fastened by stiffeners made in the form of curved plates that mirror the angles of the inner contour of the section section, with each plate rigidly connected to both docked sections; at the same time, at the base of the rack there are two fastening nodes spaced apart by the length of the rack for mounting the rack on the cylindrical surface of the pile, each fastener containing two fasteners rigidly transversely mounted on the inner surfaces of the rack segments, and each fastener is made in the form of a complex plate a contour along the outer contour repeating the corresponding contour of the half hexagon of the inner surfaces of the rack segments, and the inner contour of the fastener in the form of a part of a circle for interfacing with the surface of the pile; while the fasteners are fixed to the segments with scarves. 2. The rack according to claim 1, characterized in that each mounting unit for installing the rack on the pile contains two screed nodes located at the level of the fastening elements on opposite sides of the rack segments, while each screed assembly is made in the form of two pairs rigidly mounted on adjacent the extreme sections of the stop segments, each stop being made in the form of a corner piece, each one shelf is welded from the outside to the outer surface of the corresponding extreme portion of the rack segment, and an opening is made in the second shelf to provide the ability to tighten the stops to each other with threaded fasteners, passed through holes in the shelves of both stops. 3. The rack according to claim 1, characterized in that in the upper part the segments of the rack are connected by a diaphragm, on the surface of which a traverse mounting element is rigidly fixed. 4. The rack according to claim 1, characterized in that the segments along the entire height of the rack are rigidly interconnected by transverse overlays in the form of stiffeners welded by the edges of the shelves with the internal cavity oriented to the segments along the outer surfaces of the extreme sections of the rack segments with the formation of extended welds.

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