RU2711861C2 - Resilient boltless rail fastener-2 - Google Patents

Abstract

FIELD: rail vehicles.

SUBSTANCE: invention relates to railway transport, particularly, to railway track superstructure. Resilient boltless rail fastener comprises pad flanges and embedded parts with T-shaped ledge mounted on under-rail base. Vertical force from terminal on rail foot and on under-rail base is transferred by pressing it to base through resilient gasket. Terminal is made of plate spring steel, has σ-shape, the bottom curved part of which has in its middle a groove, which it enters between the T-shaped ledge and the lining with fixation of its position by thrust from below into a T-shaped projection with a bend at its end. Upper bent part, deflecting T-shaped ledge and flange of pad, rests on rail foot. By its length the terminal has variable width in the form of beam of equal resistance from a support point to a lining with narrowing to a support point of it on a rail foot.

EFFECT: higher efficiency of using rail clamping structure.

1 cl, 1 dwg

Description

The invention relates to the field of railway transport, and can be used in the arrangement of the upper structure of the railway track at any rail base.

Known elastic boltless rail fastening "Pendrol" (see V. G. Albrecht and others. The jointless path. M .: Transport, 2000, S. 80, Fig. 3.17), containing flanges and embedded parts mounted on a rail base with elastic elements transmitting vertical forces to the sole of the rails, pressing it to the base through an elastic gasket.

The disadvantages of this rail fastening are: the impossibility of adjusting the position of the rail in height, the impossibility of re-fastening rail lashes without interrupting the movement of trains, as well as the elastic operation of the terminal at the same time for bending and torsion, which leads to increased requirements for its strength and geometric qualities and to quick relaxation of effort, transmitted by her to the sole of the rail.

Elastic boltless rail fastening is also known according to Patent No. 2340717. Published: 10. 12. 2008. Bull. No. 34, taken as a prototype, containing a embedded part in the form of a T-shaped protrusion, under which a terminal pressing the rail with a coil spring is inserted.

The disadvantage of this bond is the relative complexity and a lot of detail.

These disadvantages reduce the effectiveness of the design.

An elastic bolt-free rail fastening-2 is proposed, containing linings with flanges and embedded parts with a T-shaped protrusion, terminals mounted on the rail base, by which the vertical force is transmitted from the terminal to the rail base and rail base by pressing it to the base through an elastic gasket characterized in that the terminal, made of plate spring steel, has a σ-shape, the lower curved part of which has in its middle a groove with which it enters between the T-shaped protrusion I mention the lining with the fixation of its position, with the emphasis from below in the T-shaped protrusion with a bend at its end, the upper curved part, bending around the T-shaped protrusion and the lining flange, rests on the rail sole, the terminal has a variable width in the form of a “beam of equal resistance »From the place of support to the lining with narrowing to the place of its support on the bottom of the rail.

The drawing shows the proposed elastic bolt-free rail fastening-2, three projections, two cuts and a plate terminal in a reversal.

The proposed elastic boltless rail fastening-2 contains a embedded part with a T-shaped protrusion 2, a lining with flanges 4, an elastic plate terminal 3, the terminal is curved in a σ-shape, due to the longitudinal groove is placed under the T-shaped protrusion, the lower part of which abuts from below into the lining, and from above into the T-shaped protrusion with fixing its position, focusing from below into the T-shaped protrusion with a bend at its end, the terminal has a variable width, rail 1 is pressed against the lining 4 and to the base 7 through the elastic curls subcontroller 5 and 6.

Rail fastening according to the invention is as follows. Mounting parts 2 with linings 4 and gaskets 5 and 6 are mounted on the link assembly base or on the stage at the base. The rail is installed, then, using a special device, the terminals are installed by moving them horizontally by force towards the rail with snapping-in. Dismantling of terminal 3 is also carried out by a special device of "strict accounting", which is stored in places inaccessible to unauthorized persons and issued for work to the fitters of the receipt.

The invention solves the problem of increasing the efficiency of the use of the structure of the upper track structure using rail fastening, which, unlike the known ones, retains the force of pressing the rail against the base during operation due to the uniform distribution of edge stresses along the terminal, as in a “beam of equal resistance”.

Claims (1)

An elastic bolt-free rail fastener containing linings with flanges and embedded parts with a T-shaped protrusion, terminals mounted on the rail base, by which the vertical force is transmitted from the terminal to the rail base and rail base by pressing it to the base through an elastic gasket, characterized in that that the terminal is made of plate spring steel, has a σ-shape, the lower curved part of which has in its middle a groove with which it enters between the T-shaped protrusion and the lining with fixation of its position, focusing from below into a T-shaped protrusion with a bend at its end, the upper curved part, enveloping the T-shaped protrusion and the lining flange, rests on the bottom of the rail, the terminal has a variable width in the form of an "equal resistance beam" from the place of support on the lining with a narrowing to the place of support on the sole of the rail.

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