RU2584406C1 - Insert for intermediate rail fastening - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: insert of intermediate rail fastening relates to railway transport. Insert comprises base 1 with vertical limiters 2, sidewalls 3, having curvilinear ends 4, bearing wall 5. In lower part base 1 has ledge 6. Side walls 3 on inner surfaces are provided with support, mainly vertical, guide ribs 7 to interact with ends of branches of spring terminal.

EFFECT: higher reliability of insert.

3 cl, 2 dwg

Description

The invention relates to railway transport.

Known insert intermediate rail fasteners containing a base with a protrusion on the lower surface, tighteners fasteners, side and thrust walls that define the cavity for the ends of the branches of the spring terminal (see RF patent No. 2445417 from 03.20.2012).

A disadvantage of the known insertion of the intermediate rail fastening is low reliability due to the insufficient strength of its walls and the possibility of pinpoint impact on them of the ends of the spring terminal.

The technical result to which the invention is directed is to increase the reliability of the insert.

The specified result is achieved by the fact that in the insert of the intermediate rail fastening containing the base with a protrusion on the lower surface, tighteners of the fastener, side and thrust walls defining a cavity for the ends of the branches of the spring terminal, the side walls on the inner surfaces are made with thrust, mainly vertical, guide ribs for interaction with the ends of the branches of the spring terminal.

Thrust guide ribs can be made with beveled ends, which facilitates the entry into the insertion cavity of the ends of the spring terminal branches.

To increase the manufacturability of the insert, the side and thrust walls are made with the same thickness.

The invention is illustrated by drawings.

In FIG. 1 shows a general view of the insert; in FIG. 2 - insert, side view.

The insert contains a base 1 with vertical stops 2, side walls 3 having curved ends 4, a stop wall 5. In the lower part, the base 1 has a protrusion 6. The side walls 3 on the inner surfaces are made with persistent, mainly vertical, guiding ribs 7 to interact with the ends of the branches of the spring terminal.

The joining of the walls 3, limiters 2 with the base can be made in the form of radii. The abutment wall 5 or its outer surface is located at an angle to the base 1 and repeats the bends of the thrust protrusion of the lining of the intermediate rail fastening.

The insert is mounted on a metal lining made with a recess for its protrusion 6.

The guiding ribs of the vertical side walls 5 and their radial mates with the base 1 guarantee the design position of the terminal in the fastener assembly and the occurrence of cutting point action on the walls 5 during centering of the ends of the spring terminal branches and during operation of the intermediate rail fastening.

The control of the assembly of the fastener assembly is carried out automatically, because the fastening element (screw or bolt) is twisted until it touches the inserts 2 of the insert, thereby ensuring the necessary deflection of the terminal branches and pressing the lining to the rail through the insert.

Claims (3)

1. An intermediate rail fastener insert, comprising a base with a protrusion on the bottom surface, fasteners for tightening the fastener, side and stop walls defining a cavity for the ends of the branches of the spring terminal, characterized in that the side walls on the inner surfaces are made with persistent, mainly vertical, guides ribs for interaction with the ends of the branches of the spring terminal. 2. The insert according to claim 1, characterized in that the thrust guide ribs are made with beveled ends. 3. The insert according to claim 1 or 2, characterized in that the side and thrust walls are made with the same thickness.

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