RU210108U1 - Emphasis side polymer intermediate rail fastening - Google Patents

Abstract

The utility model relates to the structure of a railway track superstructure, in particular, to a device for fastening seamless track rails on a reinforced concrete base using spring steel clamps. The polymer side stop of the intermediate rail fastening is made in the form of a rectangular plate with a through hole for the fastener and with an upwardly directed thrust ledge and a downwardly directed guide ledge located along its opposite edges, the side surface of which smoothly passes into the inclined end thrust surface, moreover the plate contains restrictive ledges for fixing and pressing the terminal in the working position and for limiting the excessive tightening of the fastener, it differs in that stiffening ribs are made on the upper surface of the plate, connected to the stop ledge, increasing the rigidity of the stop ledge and limiting the terminal from turning when it is installed. On the end part of the plate, on the opposite side from the end stop surface, there is a spike for fixing the stop in the under-rail pad of the rail fastening, and the upper part of each stiffening rib contains a recess for setting the terminal into the mounting position. The technical result of the claimed utility model is to simplify the installation of rail fasteners. 5 z.p. f-ly, 8 ill., 1 pr.

Description

Technical field

The utility model relates to the structure of a railway track superstructure, in particular to a device for fastening seamless track rails on a reinforced concrete base using spring steel clamps.

State of the art

From the prior art, a rectangular polymer side stop in the form of a plate bent at the corner is known, consisting of a horizontal flat central and two adjacent inner side and outer side parts and having a through hole in the horizontal flat central part, in the inner side adjacent to the rail sole part, a vertical protrusion located parallel to the rail sole, in addition, having on the outer side part opposite the inner side part adjacent to the rail sole, a concave section in the cross section of a U-shaped shape, and the edge of the outer side part is made with an inclined supporting flat surface. On top of the horizontal flat central part from the vertical protrusion, two protrusions symmetrical about the longitudinal axis with recesses with the formation of beads are made, while the thrust bracket is made of glass-filled polyamide (RU 2247186 C1, E01B 9/00, publication date 27.02.2005).

The disadvantage of such an emphasis is the inability to connect it to the rail fastening gasket, which leads to the need for additional operations to secure the gasket during assembly and transportation.

Also a disadvantage is the presence on the upper horizontal flat central part of the stop of two symmetrical protrusions with recesses with the formation of beads, which are guides for landing the terminal. The presence of protrusions does not allow for adjustment of the track width, and also makes it difficult to install the joint. Such an emphasis is not universal and suitable for terminals with various geometric deviations.

Known stop for mounting rails on a concrete sleeper, made in the form of a rectangular guide plate, designed to fix it W-shaped terminals. The stop contains a through hole for the fastener and located at the edge of the stop guide protrusion directed upwards, and the guide protrusion directed downwards, as well as two protrusions on the upper surface of the stop, made with the possibility of contact with the ends of the terminal to hold it in the working position (MX 2014008419 A, E01B 9/30, 21.08.2014).

The disadvantage of such an emphasis is the small height of the protrusion on its upper surface, designed to hold the terminal in the working position, which does not allow straightening the path along the level in the fastening unit due to the excess of the feather of the sole of the rail of the protrusion of the flange of the stop. In addition, this stop is designed for W-terminals and is not suitable for B-terminals.

Another disadvantage is the inability to connect it to the rail fastener, which makes the rail fastening unreliable.

As the closest analogue, an emphasis of a non-lined intermediate rail fastening with a B-shaped spring terminal is adopted, made in the form of a rectangular plate with a through hole and located along its opposite edges parallel to each other with an upwardly directed thrust ledge and a downward directed guide ledge. , the lateral surface of which smoothly passes into the inclined lateral thrust surface of the bracket. The stop also contains restrictive protrusions that prevent excessive tightening of the fastener, and stiffeners (guide walls 6) with end sections made along the radius, which, together with the restrictive protrusions, ensure the fixation of the V-shaped spring terminal in the design position and prevent the extension of its end sections when fastener tightening. On the side of the lower surface in the body of the bracket there are cavities separated by stiffeners (RU 97387 U1, E01B 9/30, publication date 10.09.2010).

The disadvantage of the closest analogue is the high material consumption, the elongated geometry of the stiffeners (guide walls) in the given stop contributes to the accumulation of weeds with their further entry into the through hole. The restrictive protrusions are made in such a way that they do not ensure the ingress of weeds into the through hole. The outer part of the restrictive ledges is made separate, which reduces the rigidity of the support platform. Limiting ledges and guide walls in this stop have low aerodynamic performance. Also in this stop there are no protrusions on the stiffening ribs that prevent the terminal from turning.

The technical problem of the claimed utility model is to overcome the technical disadvantages inherent in analogues, which leads to the need to create a side polymer stop, which increases its reliability and durability, as well as the reliability and durability of the intermediate rail fastening design.

Disclosure of the essence of the utility model

The technical result of the claimed utility model is to simplify the installation of rail fasteners.

The technical result of the claimed utility model is achieved due to the stop of the lateral polymeric intermediate rail fastening, made in the form of a rectangular plate with a through hole 1 and with a stop ledge 2 located along its opposite edges, directed upwards, and a guide ledge 3, directed downwards, the side surface of which is smoothly goes into an inclined end stop surface 4 stops. The plate contains restrictive protrusions 5 for fixing and pressing the terminal in the working position and for limiting the excessive tightening of the fastener. On the upper surface, the stop contains stiffening ribs 6 connected to the stop lug 2 and increasing the rigidity of the stop lug 2, as well as limiting the terminal from turning. On the end part of the plate on the opposite side from the end stop surface 4 there is at least one spike 8 for fixing the stop in the under-rail pad of the rail fastening. The upper part of each stiffener 6 contains a recess 9 for placing the terminal in the mounting position.

The presence of at least one spike on the stop ensures that it is fixed in the gasket in the correct position, which simplifies the assembly of the rail fastener. Additionally, reliability is increased by fixing the gasket in contact with the stop from longitudinal shift, both during the transport of the rail fastener and during the operation of the rail fastener.

Due to the presence of stiffeners, it is possible to operate the device for automatically sliding and shifting the terminal during its installation, keeping it from turning during installation, which simplifies the process of its installation when assembling the rail fastening. The stiffening ribs make it possible to increase the rigidity of the thrust lug and serve to strengthen and volumetrically stiffen the structure.

Recesses (recesses) on the stiffening ribs serve as a parking space for the branches of the terminals during automatic sliding and shifting of the terminals to the pre-mounting position. Due to the presence of recesses on the stiffeners, the terminal is fixed on the stop in the mounting position, which facilitates the assembly process and the transfer of the terminal from the mounting to the working position. The notch design prevents the terminal from turning during track gauge adjustment operations.

The presence of restrictive protrusions ensures the fixation and pressing of the terminal in the working position, and also prevents from excessive tightening of the fastener.

Thus, all the features that characterize the claimed emphasis are aimed at simplifying the installation of rail fastening elements.

In a particular case of the implementation of the utility model, each spike is made in the form of a parallelepiped with a thickness of at least 1/5 and not more than 1/4 of the nominal thickness of the rail pad.

In a particular case of the implementation of the utility model, the stiffeners are made with a length equal to at least 1/8 and not more than 3/8 of the plate length. Such stiffeners have the best aerodynamic performance compared to the closest analogue.

In a particular case, the stop contains two restrictive protrusions 5 located on opposite sides of the through hole 1 and connected to each other from below by a wall 7 that prevents weeds from entering the through hole 1. The first restrictive protrusion is made in the form of a single element located between the stiffening ribs, one the side of which is adjacent to the thrust ledge, and the other is concave. The second restrictive ledge is also made in the form of a single element, the outer outer surface of which is convex, and the inner one is concave. This implementation of the restrictive ledges has increased aerodynamic performance compared to the closest analogue.

In a particular case of the implementation of the utility model, the lower surface of the plate contains symmetrical recesses 10 dividing it into three parts, with at least two inclined stiffening ribs 11 in each recess, connecting the center of the plate with the edge.

In a particular case of the implementation of the utility model, the upper surface of the plate has an inclined plane of trapezoidal shape 12, directed from the center to the edge, designed to drain water and weeds.

Brief description of the drawings

The claimed utility model is illustrated by drawings, which show a particular case of the implementation of the utility model:

Fig. 1 - general view of the stop of the lateral polymeric intermediate rail fastening;

fig. 2 is a bottom view of the stop of the lateral polymeric intermediate rail fastening;

Fig. 3 - top view drawing;

Fig. 4 - drawing of the bottom view;

Fig. 5 - drawing of section A-A;

Fig. 6 is a front view drawing;

Fig. 7 is a top view of a rail fastening with the declared stop;

Fig. 8 is a side view of a rail fastener with the declared stop.

The positions in the figures indicate the following elements:

1 - through hole;

2 - thrust ledge directed upwards;

3 - guide ledge directed down;

4 - inclined side thrust surface;

5 - restrictive protrusion;

6 - stiffener;

7 - wall connecting the restrictive ledge with the stiffener;

8 - spike;

9 - recess for installing the terminal in the mounting position;

10 - symmetrical recesses on the bottom surface of the plate;

11 - inclined stiffeners;

12 - inclined planes of a trapezoidal shape;

13 - stop as part of a rail fastening;

14 - terminal;

15 - sleeper;

16 - rail;

17 - fastener (screw);

18 - rail pad.

The stop is a rectangular plate with a hole 1, a stop ledge 2 and a guide ledge 3, the side surface of which passes into an inclined end stop surface 4. The plate also contains restrictive ledges 5 and stiffeners 6. The limiting ledges 5 are connected by a wall 7 on different sides of the hole On the end side, opposite from the end stop surface 4, there are two spikes 8. The upper part of the stiffeners 6 contains a recess 9 for setting the terminal in the mounting position. The location and implementation of the stiffeners 6 allows you to keep the terminal from turning. The lower surface of the plate contains symmetrical recesses 10, with at least two inclined stiffening ribs 11 made in each recess. The upper surface of the plate contains inclined trapezoidal planes 12 (Fig. 1-6). Rail fastening with the declared stop 13 contains a terminal 14 mounted on the stop. On the sleeper 15, a rail fastening pad 18 is installed, on which the rail 16 is placed. A screw 17 is inserted into the stop hole (Fig. 7, 8).

Implementation of the utility model

Rail fastening with the claimed stop is assembled as follows. Under-rail pads 18 are laid on the sleeper, then stops 13 are installed. Then, if necessary, the sleeper is transported with fastening, for which the B-shaped terminal is installed in the recesses of the stop in the mounting position, a screw with a washer is placed in the through hole of the stop and twisted with force until it is pressed stop terminal, and stop - gaskets.

The assembly of the rail-sleeper grid is carried out as follows.

A rail is installed on the rail pad 18. Next, screw 17 is loosened and terminal 14 is transferred to the working position, placing one part of it on the rail, and the other on the stop. Then, the standard tightening of the screw 17 with the washer is performed (Fig. 8).

Example 1

The stop is made of glass-filled polyamide. Stop options:

- dimensions of a rectangular plate - 116×55×45 mm; plate hole width: 24 mm;

- height of the plate with a thrust ledge (2) - 45 mm;

- guide ledge height from 15 to 35 mm;

- width of restrictive ledges (5) from 20 to 35 mm;

- height of restrictive ledges (5) from 10 to 25 mm;

- width of each stiffener (6) - 6 mm;

- stiffeners are made with a length equal to from 1/5 to 1/4 of the length of the plates;

- height of the recess for the terminal on the stiffener (6) - 7.5 mm;

- spikes are located at a distance of 60 to 80 mm from each other;

- each spike is made with a width equal to 5 mm and a thickness of 1/5 of the nominal thickness of the rail pad.

- height of recesses (10) on the lower surface of the plate - 10 mm.

Claims (6)

1. Stop polymeric side intermediate rail fastening, made in the form of a rectangular plate with a through hole for the fastener and located on its opposite edges of the thrust ledge, directed upwards, and the guide ledge, directed downwards, the side surface of which smoothly passes into the inclined end thrust surface , moreover, the plate contains restrictive protrusions for fixing and pressing the terminal in the working position and for limiting the excessive tightening of the fastener, characterized in that stiffening ribs are made on the upper surface of the plate connected to the thrust protrusion, which increase the rigidity of the thrust protrusion and limit the terminal from turning when it installation, on the end part of the plate on the opposite side from the end stop surface there is a spike for fixing the stop in the under-rail pad of the rail fastening, and the upper part of each stiffening rib contains a recess for installing the terminal in the mounting new position. 2. Stop according to claim 1, characterized in that each spike is made in the form of a parallelepiped with a thickness of at least 1/5 of the nominal thickness of the rail pad. 3. Stop according to claim. 1, characterized in that the stiffeners are made with a length equal to at least 1/8 of the length of the plate. 4. Stop according to claim 1, characterized in that the restrictive projections are connected to each other by a wall. 5. The stop according to claim 1, characterized in that the lower surface of the plate contains symmetrical recesses dividing it into three parts, while each recess has at least two inclined stiffening ribs connecting the center of the plate with the edge for uniform stress distribution. 6. Stop according to claim 1, characterized in that the upper surface of the plate has trapezoidal inclined planes directed from the center to the edge to drain water and weeds.

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