RU223228U1 - INTERTRACK LATERAL RETAINER FOR INSTALLING INTO RAIL HOLES P65 - Google Patents

Abstract

The utility model relates to the field of transport construction, namely to the construction of road surfaces for roads combined with rail tracks, in particular to road surfaces for motor transport on tram tracks when placed between the rail and the coating slab.

The inter-track side clamp for inserting into the bosoms of P65 rails is made in the form of a long elastic element with a shaped cross-section, containing on one side a curved surface containing a rounded recess in the lower part, and in the middle part - an angular protrusion coupled with a straight line, turning into a protective protrusion. The opposite side of the latch is made straight with a rounding in the lower part of the profile, coupled with a rounded recess in the lower part of the first side. The upper part of the opposite side of the lock is made rounded and mated with a protective protrusion, the height of which from the mating point is 23±5 mm. The height of the shaped section of the retainer is 152±10 mm; the maximum width of the shaped section of the retainer is 108±10 mm; the height of the rounded recess in the lower part of the retainer is 38±5 mm.

The maximum width of the figured section of the retainer is related to the height of the section as 104:152. The height of the lock from the point where the corner protrusion meets the straight line that turns into the protective protrusion is 61±10 mm. The width of the protective protrusion in its upper part is 38±5 mm. The profile length is a multiple of 1500 mm.

Description

The utility model relates to the field of transport construction, namely to the construction of road surfaces for roads combined with rail tracks, in particular to road surfaces for motor transport on tram tracks when placed between the rail and the coating slab.

A retainer is a beam for tram rails, made of elastic materials of a special shape, cross-section, configuration and density. The profile product is used as stops for large reinforced concrete tram slabs 3 meters long. In fact, the retainer is a beam for inserting into the grooves of rails, for example, tram P65. The retainer solves several problems provided by its physical and mechanical characteristics and operational properties. When operating rail vehicles, due to unevenness of the wheel and rail bed, as well as due to local changes in the rigidity of the rail and sleeper grid, vibrations occur, which negatively affect the well-being of passengers and service personnel and lead to acoustic pollution of the environment. In addition, vibrations lead to premature wear of rolling stock and rail track elements, which requires increased maintenance costs. To combat noise and vibration, various means made of elastic materials mounted on the rail surface are used.

The clamps are characterized by their ability to dampen vibrations. They also work for electrical insulation, preventing the formation of stray currents. As a result, the likelihood of rapid damage to metal structure elements by electrocorrosion is significantly reduced. Fasteners must be reliable and easy to use.

From the prior art, a rubber beam is known according to RF patent No. 2155838 “Prefabricated reinforced concrete covering of tram tracks and a method for its assembly ” , publ. 09/10/2000, used in prefabricated reinforced concrete covering of tram tracks. Rubber bars, used as a compaction agent in a compressed state, are installed in the gaps between the rails and the side edges of the inter-track slabs. The cross-section of the beams on one side has the shape of a rail bosom, and on the opposite side - a rectilinear, vertical surface in the upper part, which in the lower part turns into a protrusion that abuts the bevel of the side edge of the coating slabs.

The disadvantage of the fastener is the deformation of its surface during installation and operation of the road surface, which reduces the strength and performance characteristics of the structure.

The utility model “Inter-track clamp for placement between a rail and a covering slab” is known from the prior art according to RF patent No. 178690, publ. 04/17/2018, where the latch, intended for placement between the rail and the covering slab, is made in the form of a rubber bar, having a cross-section on one side in the form of rail sinuses, which turns into a vertical protective protrusion at the top, and a curved one on the opposite side surface formed by the wall of the protective protrusion, mated with the supporting surface, turning into an inclined surface abutting the base of the rail, while the vertical protective protrusion is made with a slope towards the rail head, the supporting surface is made in the form of conjugated rectilinear inclined surfaces, and the inclined surface abutting into the base of the rail, made straight.

The disadvantage of the fastener is the deformation of its surface during installation and operation of the road surface, in particular due to protruding rail fasteners, which reduces the strength and performance characteristics of the structure.

The closest to the claimed technical solution is the “Rubber inter-track lateral clamp” according to RF patent No. 217333, publ. 03/28/2023 Bulletin. No. 10. The technical result of the claimed utility model is to reduce acoustic pollution, increase the service life of track fastenings, which is achieved by tightly fitting the fastener to the track rail and the installed slab, preventing moisture from entering the places of rail fastenings, as well as to ensure the possibility of unifying the use of a fixed-length fastener – a multiple of the length of the installed slabs, which results in a reduction in the number of gaps when installing the corresponding slab, which has a positive effect on the life of the entire system and simplifies repair work. The rubber inter-track lateral retainer is made in the form of a long elastic element - a profile with a shaped section, containing on one side a curved surface containing a rounded recess (1) in the lower part, and an angular protrusion (2) in the middle part, coupled with a straight line, turning into a protective protrusion (4), with a recess (3) made between the corner protrusion and the straight line; the other side of the retainer is made straight and forms a protrusion (5) in the upper part with a rounded corner, the side of which is connected to the protrusion (4) in the upper part of the profile, and forms a rounding (6) in the lower part of the profile, coupled with a rounded recess (1) in the lower part of the first side, while the protrusion in the upper part of the profile forms a figure close to rectangular, the height of which at the junction with the protrusion (5) in the upper part of the profile is 27±5 mm, while the maximum width of the figured section relates to the height of the profile as 100:153, and the profile length is a multiple of 1.5 m. The height of the clamp is 153±10 mm. The maximum width is 100±10 mm.

The disadvantage of the fastener is that it is difficult to install in the rail grooves when using screw-dowel fasteners and the deformation of its surface during installation and operation of the road surface, in particular due to protruding rail fasteners, which reduces the strength characteristics of the structure.

The technical result of the claimed utility model is to simplify the installation of the fastener in the grooves of the rail and its dismantling, reducing the deformation of its surface during installation and dismantling during operation of the road surface, in particular due to protruding fasteners of the rail (for example, screw-dowel fastenings), which contributes to maintaining the strength characteristics of the structure, increasing adherence to the rail and track covering slabs and, as a result, reducing acoustic pollution and increasing the service life of track fastenings. In addition, installing the protruding part on the screw-dowel fastenings used makes it possible to increase the rigidity of the structure and, consequently, the reliability of fastening the slabs.

To achieve the specified technical result, the inter-track lateral clamp for inserting into the bosoms of P65 rails is made in the form of a long elastic element with a shaped cross-section, containing on one side a curved surface, in the lower part of which there is a rounded recess, in the middle part - an angular protrusion associated with a straight line, passing into a protective ledge. The other side of the latch is made straight with a rounding in the lower part, coupled with a rounded recess in the lower part of the first side. The upper part of the other side of the latch is made rounded and mated with a protective protrusion, the height of which from the mating point is 23±5 mm, while the maximum width of the figured cross-section of the latch is related to the height of the cross-section of the latch as 104:152, the height of the rounded recess in the lower part of the latch is 38±5 mm, the height of the protective protrusion is 23±5 mm, the height of the latch from the point of intersection of the corner protrusion with the straight line turning into the protective protrusion is 61±10 mm, the width of the protective protrusion in its upper part is 38±5 mm, and the length of the clamp is a multiple of 1500 mm. The height of the figured cross-section of the retainer is 152±10 mm. The maximum width of the figured cross-section of the retainer is 108±10 mm.

In the examples below, the latch is described in the installed position, so the instructions regarding orientation are: “vertical”, “top”, “bottom”, “horizontal”, “side”, etc. – are conditional. In the description, the lateral side (5) of the cross-section of the clamp is taken as the vertical in relation to which the height and width of the latch are determined.

The essence of the claimed utility model is illustrated by drawings.

Figure 1 shows a cross-section of the inter-track side clamp for inserting into the grooves of P65 rails according to the utility model, where:

1 – rounded notch,

2 – corner protrusion,

3 – straight,

4 – protective projection,

5 – other (opposite) side of the latch,

6 – rounding of the lower part of the other (opposite) side of the clamp section,

7 – rounding the upper part of the other (opposite side of the fastener section.

In fig. 2 shows a clamp for inserting P65 rails into the bosoms with a P65 rail.

The inter-track side clamp for inserting into the bosoms of P65 rails is made in the form of a long elastic element with a shaped section, containing on one side a curved surface containing a rounded recess (1) in the lower part, and an angular protrusion (2) in the middle part, coupled with a straight line (3 ), turning into a protective protrusion (4), the opposite side (5) of the latch is made straight with a rounding (6) in the lower part of the latch section, associated with a rounded recess (1) in the lower part of the first side, the upper part (7) of the opposite side ( 5) of the latch is made rounded and mated with a protective protrusion (4), the height of which from the mating point is 23±5 mm, the height of the shaped section of the latch is 152±10 mm, the maximum width of the shaped section of the latch is 108±10 mm. The maximum width of the figured section of the retainer is related to the height of the section as 104:152. The height of the round recess (1) in the lower part of the clamp is 38±5. The height of the protective protrusion (4) is 23±5 mm. The height of the retainer from the point where the corner protrusion (2) meets the straight line turning into the protective protrusion (4) is 61±10 mm. The width of the protective protrusion (4) in its upper part is 38±5 mm. The length of the clamp is a multiple of 1500 mm. The internal angle α of the corner projection (2) is ≤85±15°.

The inter-track side clamp for inserting into the grooves of rails P65 is used as a profile for inter-track and side slabs of the prefabricated covering of tram tracks, installed in the grooves of the rails, and in cross section on one side it has the shape of a rail groove, and on the other side it contains a curved surface, while in its lower part has a rounded recess (1) along the entire length of the latch. The round recess (1) facilitates in-place maintenance of the prefabricated track covering, allowing the fastener to be easily installed in the grooves of the rails, lightens the weight of the fastener, the lower part of the corner protrusion (2) rests on the rail fastening elements and works as a rotary axis when dismantling the fastener, the plate rests on the upper part of the corner protrusion (2), ensuring, due to its weight, a tight fit to the clamp, which leads to a reduction in vibrations and, consequently, to a reduction in acoustic pollution of the environment.

The latch contains a support element made in the form of an angular protrusion (2), its upper side is mated with a straight line (3), turning into a protective protrusion (4), made in the upper part of the latch, placed between the rail and the corresponding prefabricated track covering slab (side or inter-track), the size of which contributes to the removal of precipitation and pollution. Using it as a support lever when installing or dismantling the latch makes it easier to do so while avoiding deformation of the latch.

The opposite side of the latch (5) has a rounding (7) in the upper part and a rounding (6) in the lower part of the latch, which corresponds to the configuration of the rail cavity formed by the sole, neck and head of the rail. A rounded recess (1) in the lower part of the fastener minimizes the pressure of the fastening elements on the fastener and facilitates its installation, and, therefore, ensures its safety and durability, and the angular protrusion makes it easier to rotate the fastener when removing it and ensures a tight connection with the plate.

The protective protrusion (4) in the upper part of the latch forms a figure close to rectangular, with a slight inclination towards the opposite side (5) of the latch, the height of the protective protrusion (4) at the junction with the rounding (7) in the upper part of the latch is 23±5 mm, while the maximum width of the figured cross-section of the retainer is related to its height as 104:152. The height of the clamp H is 152±10 mm, the maximum width is 108±10 mm.

The indicated values were selected experimentally and together make it possible to ensure that the retainer meets the established requirements. Dimensions are determined based on testing and peak load applied to the road surface. The specified configuration and dimensions ensure maximum fit of the fastener to the profiles of the corresponding plate and rail, allow for simplified installation and dismantling, and reduce the deformation of its surface during installation, dismantling and operation of the road surface, in particular due to optimal contact with the protruding fasteners of the rail fastening (for example, screw-dowel fastenings), which helps to maintain the strength characteristics of the structure, increase adherence to the rail, track covering slabs and, as a result, reduce acoustic pollution and increase the service life of the track. In addition, installing the protruding part on the screw-dowel fastenings used makes it possible to increase the rigidity of the structure and, consequently, the reliability of fastening the slabs.

The prototype was implemented in the form of a long elastic element made of a rubber compound. The studied sample meets the requirements for fixatives. The prototype had the following characteristics. The Shore hardness of the sample studied was 60 conventional units. The relative residual strain at 20% static compressive strain after aging in air at a temperature of (100±1)°C for 24±2 hours did not exceed 40%. The product retained its properties in the temperature range from minus 40°C to plus 60°C. One of the important indicators is the specific volumetric resistance to electric current, which was 1×109 Ohm⋅cm for a thickness of less than 10 mm, and for a thickness of more than 10 mm – 1×1010 Ohm⋅cm. Conditional tensile strength – 6.0 MPa.

The length of the clamp, which is a multiple of 1.5 m, makes it possible to unify its use and reduces the number of gaps when installing the corresponding plate, which increases the service life of the entire system and simplifies repair work.

This design allows the clamp to be used for installing both side slabs and inter-track slabs, simplifying repair work, as well as effectively redistributing the load from the installed slabs and passing vehicles.

The claimed retainer is easy to produce using known methods using known equipment, for example by extrusion.

Claims (5)

1. Inter-track lateral clamp for inserting into the bosoms of P65 rails, made in the form of a long elastic element with a shaped section, containing on one side a curved surface containing a rounded recess (1) in the lower part, and an angular protrusion (2) in the middle part, coupled with straight (3), turning into a protective protrusion (4); the other side (5) of the retainer is made straight with a rounding (6) in the lower part of the profile, coupled with a rounded recess (1) in the lower part of the first side; the upper part (7) of the other side (5) of the latch is made rounded and mated with a protective protrusion, the height of which from the mating point is 23±5 mm; the height of the shaped section of the latch is 152±10 mm, the maximum width of the shaped section of the latch is 108±10 mm, the height of the rounded recess in the lower part of the latch is 38±5 mm. 2. The latch according to claim 1, characterized in that the maximum width of the figured section of the latch relates to the height of the section as 104:152. 3. The latch according to claim 1, characterized in that the height of the latch from the point of intersection of the corner protrusion with the straight line turning into the protective protrusion is 61 ± 10 mm. 4. The latch according to claim 1, characterized in that the width of the protective protrusion in its upper part is 38±5 mm. 5. The latch according to claim 1, characterized in that the length of the latch is a multiple of 1500 mm.