RU170573U1 - TERMINAL FOR RAIL FASTENING - Google Patents

Abstract

The utility model relates to the upper structure of a railway track, namely, spring terminal structures used in intermediate rail fastenings for fastening rails to rail rails that are attached to the base, for example, sleepers. The rail fastening terminal is made of an integral part of a mirror-symmetric shape with respect to its longitudinal axis L and containing a rectilinear rail section that passes from two opposite sides along the fillet radius into arcuate lateral portions curved upwards and outwardly deflected outward, the continuation of which are arc-shaped sections that turn into free peripheral sections directed by their ends towards the location of the rectilinear rail section of the terminal. What is new is that the peripheral free sections of the terminal are straightforward and are located below the level N of the maximum rise of the lateral sections of the terminal, while the terminal is made in plan smoothly extended by the lateral sections towards the location of the rail section. The technical result consists in increasing the reliability of the spring terminal, which provides a reliable pressing of the rail sole to the rail lining. 2 s.p. f-ly, 7 ill.

Description

Technical field

The utility model relates to the upper structure.

railway track, namely, to the constructions of spring terminals used in intermediate rail fastenings for fastening rails to under-rail linings that are attached to the base, for example, sleepers.

State of the art

The prior art terminal (analogue - RU 94031205, class E01B 9/30, publ. 08/27/1996), made an integral part of a rod of elastic material. The terminal is made in a shape close to the M-shape, with three loop sections, the central of which is installed in an insulator located on the bottom of the rail.

The disadvantage of this design is the limited use and complexity caused by the installation of the central loop section in the insulator, which reduces the manufacturability of the assembly and the reliability of the terminal.

The prior art spring terminal for rail rail fastening (the closest analogue is RU No. 2252287, class E01B 9/00, E01B 9/48, publ. 07/10/2005) made of a rod of elastic material with the formation of a B-shaped in plan . The above spring terminal contains a straight rail section, the ends of which are smoothly connected to the side sections, and the arc nashpal sections located behind them are connected to the end sections bent inside the terminal. A part of each arc head section located closer to the end section is made with a bend in a plane perpendicular to the terminal plane. The spring terminal described above provides the connection of rails with railway sleepers.

The disadvantage of the above spring terminal is its high rigidity, which does not allow the rail to oscillate relative to the vertical axis of the rail, which leads to rapid wear of the rail head. Also, the above design does not allow creating a high enough force to press the spring clamp to the sole of the rail, which reduces the reliability of the spring clamp and rail fastening as a whole.

Utility Model Disclosure

The objective of the utility model is directed to the development of a spring terminal providing a structurally predetermined force of pressing the rail against the rail lining, as well as the reliability of the intermediate rail fastening.

The technical result consists in increasing the reliability of the spring terminal, which provides a reliable pressing of the rail sole to the rail lining.

The specified technical result is achieved by the fact that the terminal for rail fastening is made of an integral part of a mirror-symmetric shape relative to its longitudinal axis L and contains a straight-line rail section that passes from two opposite sides along the radii of curvature into arcuate laterally curved upward and outwardly deflected lateral sections of the terminal, the continuation of which are arched sections in plan, passing into free peripheral sections directed by their ends towards the straight-line location according to the utility model, the free peripheral portions of the terminal are straightforward and are located below the maximum rise of the lateral sections of the terminal, while the terminal is made in plan smoothly extended by the side sections towards the location of the rail section.

The railroad section and the parts of the transition of the lateral sections of the terminal into arched sections in plan are located on the same X-X plane.

The parts of the transition of the arc-shaped sections of the terminal into its free peripheral sections are made above the X-X plane.

The set of features of the claimed utility model is in a causal relationship with the achieved technical result and is presented in the utility model formula.

The essence of the technical solution is illustrated by the figures:

FIG. 1 - shows the claimed terminal for rail fastening, General view.

FIG. 2 is a view A of FIG. 1.

FIG. 3 - shows a terminal for rail fastening, top view (in plan).

FIG. 4 - shows a view of B in figure 3.

FIG. 5 - shows a view of C in figure 3.

FIG. 6 - shows a view of D in figure 3.

FIG. 7 - schematically shows a rail fastening with two terminals installed.

The above figures show:

1 - terminal;

2 - rail section of terminal 1;

3a, 4a — lateral portions of terminal 1;

3b, 4b - arched in plan sections of the terminal 1;

3c, 4c - free peripheral portions of terminal 1,

3d - part of the transition of the lateral section 3a in the arcuate in plan section 3b;

3f is a part of the transition of the curved section 3b into the free peripheral section 3c of terminal 1;

4d is a part of the transition of the side portion 4a into the arcuate in plan section 4b;

4f is a part of the transition of the curved section 4b into the free peripheral section 4c of terminal 1;

5 - fastener;

6 - rail lining;

6a - the base of the rail lining 6;

7 - base;

8 - rail;

8a - the sole of the rail 8;

8b - rail head 8;

9 - washer;

L is the longitudinal axis of terminal 1;

N is the level of maximum lift of the side sections 3a, 4a of terminal 1;

X-X is the plane.

It should be understood that specialists in the art will be able to offer other options for implementing the utility model and that some of its details can be changed in various other aspects, without going beyond the essence and scope of the present utility model. Accordingly, the explanatory figures and the detailed description of the rail fastening terminal are illustrative, but not restrictive.

Utility Model Disclosure

Terminal 1 (see Fig. 1-6) for rail rail fastening is made by a single integral part of a mirror-symmetric shape relative to its longitudinal axis L.

Terminal 1 contains a rectilinear rail section 2, passing from two opposite sides along the rounding radii to the side sections 3a and 4a, the continuation of which is the corresponding curved planes sections 3b and 4b, passing into the corresponding free peripheral sections 3c and 4c, directed by their ends to the side the location of the aforementioned straight-line rail section 2 (see figures 1, 2, 3).

The lateral sections 3a, 4a of the terminal 1 are made curved upward and bent outward (see figures 5, 6).

The peripheral free sections 3c, 4c of terminal 1 are made rectilinear and are located almost parallel to each other, while being close to each other by a distance Z, which allows to install between them the rod part of the fastening element 5, connecting the rail underlay 6 with the base 7, which is used as in particular, sleepers.

The peripheral free sections 3c, 4c of terminal 1 are located below the level N of the maximum rise of the lateral sections 3a, 4a of terminal 1, and also slightly above the plane XX, on which the straight-line rail section 2 and the transition parts 3d, 4d of the corresponding above lateral sections 3a and 4a are located arcuate in plan sections 3b and 4b of terminal 1 (see figures 4, 5).

Parts 3f, 4f of the transition of the corresponding arcuate in terms of sections 3b, 4b into the free peripheral sections 3c, 4c of terminal 1 are slightly higher than the X-X plane.

Terminal 1 is made in plan smoothly expanded by the lateral sections 3a, 4a towards the location of the rail section 1, which increases the contact area of the straight rail section 2 with the sole 8a of the rail 8.

Terminal 1 is made of spring from a rod of a strong spring, elastic material, in particular from steel, according to the existing proven technology by the method of bending. In a specific example of execution, the bar is made of a circular cross section.

The above construction provides structurally defined springing of the side portions 3a, 4a and the necessary elastic deformation of the terminal 1 under the influence of loads. Thus, a reliable pressing of the rail portion 2 to the sole 8a of the rail 8 is ensured and, accordingly, pressing of the said sole 8a to the rail lining 6.

In the design of the railway track’s upper structure (see Figure 7), terminals 1 are installed on the sub-terminal sections of the rail liner 6. In the installed position of the terminal 1, its free peripheral sections 3c, 4c are pressed through the washer 9, in particular, electrical insulation, with the fastener head 5 towards the base 6a of the rail liner 6; the rail portion 2 presses the sole 8a of the rail 8 against the rail rail 6, which is securely connected to the base 7; parts 3d, 4d of terminal 1 are supported on the base 6a of the rail support 6.

As fasteners 5 can be used screws, screws or track bolts or other elements, devices that perform a similar function with a similar or superior result.

The above-described design increases the reliability of the terminal 1, which provides a reliable transmission of the tightening force of the fastening element 5 to the sole 8a of the rail 8 and, thus, the reliable pressing of the said sole 8a to the rail lining 6. In addition, the above-described terminal 1 compensates the elastic deformation of the elements by springing its sections. rail fastenings that occur under the influence of the weight of the rolling stock.

The elastic properties of the above terminal 1 allow the rail 8 to oscillate with small amplitude relative to its vertical axis at the moment of contact with the wheelset, which can significantly reduce the wear of the head 8b of the rail 8.

Claims (3)

1. A terminal for rail fastening made by an integral part of a mirror-symmetric shape with respect to its longitudinal axis L and containing a rectilinear rail section extending from two opposite sides along the radii of curvature into arcuate upwardly laterally deflected outward lateral portions of the terminal, the continuation of which are arc-shaped sections turning into free peripheral sections directed by their ends towards the location of the rectilinear rail section of the terminal, characterized in that the free peripheral portions of the terminal are straightforward and are located below the level N of the maximum rise of the terminal side portions, while the terminal is made in plan smoothly extended by the side portions towards the location of the rail section. 2. The terminal for rail fastening according to claim 1, characterized in that the rail section and parts of the transition of the side sections of the terminal into arc-shaped sections in plan are located on the same plane XX. 3. The terminal for rail fastening according to claim 1, characterized in that the parts of the transition arched in terms of sections in the free peripheral sections of the terminal are made above the plane XX.

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