RU103109U1 - CONTRREL FASTENING ASSEMBLY TO REINFORCED CONCRETE PRE-RELAY BASE - Google Patents

Abstract

 1. The attachment site of the counter rail to the reinforced concrete rail base, comprising a counter rail, a common support for the rail and the counter rail, adjusting washers for changing the width of the trough between the side face of the rail of the inner thread of the rail track and the working surface of the counter rail, characterized in that the common lining for the rail and counter rail with holes at the ends with liners installed in them with eccentric holes with an eccentricity of the center of the hole relative to the middle of the liner, equal to the difference e between the average track width in a range of gauge change and gauge installed on a particular curve. ! 2. The node according to claim 1, characterized in that the holes at the ends of the common lining are made rectangular. ! 3. The node according to claim 1, characterized in that the area of the reinforced concrete rail base for installing a rail with a counter rail is increased to the size of the overall lining.

Description

The utility model relates to the upper structure of a railway track, namely to its construction, repair and maintenance, and can be used on main railways, access roads and railway lines of industrial enterprises.

Known devices reinforced concrete rail base of various shapes and sizes. However, these devices do not allow the use of the counter-rail assembly in small radius curves due to the impossibility of increasing the track width depending on the radius of the curve. Such designs include sleepers, slabs, beds, frames (1, 2, 3, 4, 5). Of these types of rail bases, the greatest distribution both in Russia and abroad was obtained from ties of prestressed reinforced concrete.

The following types of reinforced concrete sleepers are known:

- all-beam (figa), representing one monolithic beam for supporting double-rail yarns;

- two-hinged (figb), representing a prefabricated hinged structure of three blocks connected to each other by tensile reinforcement;

- two-block (figv), consisting of two rail blocks of reinforced concrete, rigidly connected to each other by a metal element;

- half sleepers (FIG. 1d), which are rail blocks not connected to each other, laid separately under each rail thread.

The scope of this or that type of sleepers is determined by operational requirements, economic feasibility, the possibility of manufacturing and other factors.

The reference area of the sleepers should be determined so that the voltage on the ballast does not exceed acceptable values. The width of the sole with a given diagram should provide the inter-sleeper space necessary for knocking down the sleepers with ballast. The area of the ends of the sleepers, covered with ballast, should be sufficient to ensure the stability of the path against lateral shear.

The shape and size of the sleepers also largely depend on the design characteristics and the adopted method of reinforcement, providing strength, crack resistance and durability of the sleepers.

The closest technical solution to the claimed utility model is the design of the mount of the counter rail to the wooden rail, which is a structure of a composite independent counter rail, which is based on the angular counter rail profile SP-850 (6). The device comprises a counter rail and a rail of an internal thread of a rail track mounted on a single supporting surface - lining with flanges and stops for mounting the rail. Washers are located between the counter rail and the stops, which allow adjusting the gap between the side edge of the rail of the inner thread of the rail gauge and the working surface of the counter rail.

A wooden railroad tie allows the use of a counter-rail assembly in small radius curves in cases where a widening of the rail track is required. Reinforced concrete rail foundations are designed and manufactured on Russian railways with a 1520 mm gauge for straight sections and curves of large radii (radius over 350 m).

The problem to which the utility model is directed is to create a design for the attachment point of the counter rail to the reinforced concrete rail base in small radius curves.

A design of a counter rail fastening assembly to a reinforced concrete base is proposed, comprising a counter rail, a common support for the rail and the counter rail, adjusting washers for changing the width of the trough between the side face of the rail of the inner thread of the rail track and the working surface of the counter rail, in which, according to the proposed utility model, the common lining for the rail and the counter rail is made with holes at the ends with liners installed in them with eccentric holes with an eccentricity of the center of the relative hole But in the middle of the liner, equal to the difference between the average gauge in the range of the gauge and the set gauge on a particular curve.

The holes at the ends of the common lining are rectangular. The liners are made in a rectangular shape.

The area of the reinforced concrete rail base for installing a rail with a counter rail is increased to the size of the overall lining.

The counter rail mount is mounted on the inner rail side of the curve.

The proposed design of the mount of the counter rail to the reinforced concrete rail base (figure 2) has a common lining 1 for installing the rail 2 and the counter rail 3 made of a corner counter rail profile SP-850. The lining 1 is a single supporting surface on which the flanges 4 are welded to connect the rail 2 to the lining 1 and the stops 5 to secure the counter rail 3. The groove between the working surfaces of the rail 2 and the counter rail 3 should allow passage of all wheel flanges rolling along the inner thread rail gauge. The size of this gutter is regulated with the help of adjusting washers 6. In the curved sections of the track, depending on the radius, the track is widened, in connection with this the width of the counter-rail gutter is determined taking into account the adopted broadening.

The angular counter-rail profile of the SP-850 has a specific length of 9.34 m, so the sections of the curves are made up of individual elements using overlays and bolted joints. The input and output elements of the kotrerel have troughs widened by at least 100 mm, ensuring a smooth entry of the crew into the curve. The under-rail area of the reinforced concrete base (sleepers) (7-blue color) with a 1/20 base for securing the track rail has been increased to the size of the common lining of the rail and counter rail fastening (8-red color).

The lining is fixed with the help of embedded bolts, screws and dowels installed in concrete, as well as with the help of embedded parts.

The necessary gauge depending on the radius of the curve is achieved due to the fact that the attachment point of the inner rail with the counter rail in the curved section of the track moves towards the end face of the rail base by the amount of necessary broadening. This movement is ensured due to the fact that the common lining at the ends has rectangular holes. On the bolts, screws or rods of the mortgage, the details are installed liners 9 with holes (figure 3). The value of the eccentricity of the center of the hole relative to the middle of the embedded part is the difference between the average gauge in the range of the gauge, in our case (1540 + 1520): 2 = 1530 mm and the set gauge on a particular curve, for example 1540 mm. In this case, the eccentricity will be 1540-1530 = 1 Ohm. Calculations of the eccentricity of the hole and the dimensions of the distances from the center of the hole to the edges of the embedded part will be performed in tabular form (table).

Table Track Width (mm) Scattering from the center of the embedded part to the edges (mm) The difference between the average track width and its current value (mm) The distance from the center of the hole to the left edge of the embedded part (mm) The distance from the center of the hole to the right edge of the embedded part (mm) 1520
1525
1530
1535
1540 65: 2 = 32.5
65: 2 = 32.5
65: 2 = 32.5
65: 2 = 32.5
65: 2 = 32.5 1530-1520 = 10
1530-1525 = 5
1530-1530 = 0
1535-1530 = -5
1540-1530 = -10 32.5-10 = 22.5
32.5-5 = 27.5
32.5 + 0 = 32.5
32.5 + 5 = 37.5
32.5 + 10 = 42.5 32.5 + 10 = 42.5
32.5 + 5 = 37.5
32.5 + 0 = 32.5
32.5-5 = 27.5
32.5-10 = 22.5

Thus, to adjust 5 gauge widths of 1520, 1525, 1530, 1535 and 1540 mm, 3 sizes of embedded parts will be required, since with a gauge width of 1535 and 1540 mm, embedded parts are used for track widths of 1520 and 1525 mm, rotated 180 °. The same inserts are used in transition curves to ensure a smooth transition from a track gauge of 1540 mm to a track gauge in a straight section of 1520 mm. The track width in the curves of small radius and the width of the gutter is set in accordance with regulatory documents [7], the adjustment of the width of the gutter is ensured by the use of adjusting washers.

The positive qualities of the proposed design of the rail mount with a counter rail include:

1. The increase in the service life of the rails of the outer rail thread due to the fact that the horizontal guiding forces when entering the wheels of the rolling stock are transmitted to the counter rail.

2. The setting of the counter rail excludes the running of the wheel flange onto the working face of the outer rail, which prevents the rolling stock from coming under the condition of the wheel flange crawling onto the rail head.

3. The ability to adjust the width of the gutter between the track rail and the counter rail in case of wear of the working edge of the counter rail is carried out by setting gaskets between the counter rail and the stop.

4. The main advantage of the counter rail and track rail mounting unit is the possibility of using a promising reinforced concrete rail base structure in small radius curves with different track widths. At the same time, with different gauge, the same design of reinforced concrete rail base is used.

Bibliography

1. G.M.Shahunyants "Railway track". Moscow "Transport", 1987

2. Reinforced concrete sleepers for the rail track. Ed. doctors tech. sciences, prof. A.F. Zolotarsky. Moscow, Transport, 1980

3. Bekish A.A. Estimation of the operational resource of old-year reinforced concrete sleepers. Abstract of dissertation for the degree of Cand. tech. Sciences, LIIZhT, 1989

4. Vinogradov V.A. Improving the stability of the railway using reinforced concrete sleepers with increased dimensions and weight. Abstract of dissertation for the degree of Cand. tech. sciences. All-Russian Research Institute of Railway transport, M., 1987

5. Modern designs of the upper structure of the railway track. Edited by prof. V. G. Albrecht and prof. A.F. Zolotarsky. Moscow "transport" 1975

6. Patent for utility model No. 61 295, IPC Е01В 5/18, publ. 02.27.2007 - prototype

7. Technical requirements and standards for the maintenance of railways of industrial transport. Moscow, 2003

Claims (3)

1. The attachment site of the counter rail to the reinforced concrete rail base, comprising a counter rail, a common support for the rail and the counter rail, adjusting washers for changing the width of the trough between the side face of the rail of the inner thread of the rail track and the working surface of the counter rail, characterized in that the common lining for the rail and counter rail with holes at the ends with liners installed in them with eccentric holes with an eccentricity of the center of the hole relative to the middle of the liner, equal to the difference e between the average track width in a range of gauge change and gauge installed on a particular curve. 2. The node according to claim 1, characterized in that the holes at the ends of the common lining are made rectangular. 3. The node according to claim 1, characterized in that the area of the reinforced concrete rail base for installing a rail with a counter rail is increased to the size of the overall lining.