SU1729297A3 - Frog - Google Patents

Abstract

In a railway frog having a frog point (1) and wing rails (4, 5), which are connected to the frog point, the wing rails (4, 5) are welded with the frog point (1) using filling pieces (6), the filling pieces (6) in the welding position having a smaller height than the web of the wing rails (4, 5). As a result, a favourable, in particular interference-free, vibration behaviour of the vibrating masses of the frog and of the wing rails can be achieved. <IMAGE>

Description

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WITH

.Fig.3

The invention relates to a crosspiece with a core and counterrails connected to the core of the crosspiece, in which the counterrails, when using lining elements, are welded to the core.

The purpose of the invention is to reduce maintenance costs.

Fig, 1 shows a cross, top view; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 1.

In the crosspiece with core 1, by means of which the connecting rails 2 and 3 of the crossbar are connected, on the side of the core 1 of the crosspiece, counterrails 4 and 5 are provided, which are welded with the core through the lining elements 6

1crests. The connecting rails of the counter rails are connected to the counter rails 4 and 5, respectively, normal rails 7 and 8. The rails 4 and 5 are bolted to the connecting rails

2 and 3 crosses with lining elements 9. In addition, one or more lining elements 10 are welded in front of the core of the cross between the rails.

The selected lining elements 6, respectively, welded to counter rails 4 and 5, have a height a, distinctly smaller than the height b of the neck of the counter rails 4. The lining elements 6 are formed by tile-shaped elements, the main plane of which is oriented longitudinally relative to the counter rails 4. The length c in this the longitudinal direction is distinctly larger compared with the height a of the tile-shaped elements used as the lining elements 6.

In FIG. 3, one can see the width d of the elements 6 in the form of a tile in the form of welding of the lining elements with the counter rails 4 and 5 and the core 1 of the cross. The core 1 of the crosspiece, when executed (FIG. 3), is made in the form of a combined material and carries a high-wear-resistant material at the rail rolling site. There are various possibilities in the choice of materials for the cross, as well as in the choice of material for the counter rails. The core of the cross can consist of a composite material or of an austenitic high manganese steel cast, which is also possible to make counterrails from a composite material or of austenitic high manganese steel. The connection between the counter rail and the core of the cross is made respectively by welding the intermediate elements.

6, and depending on the choice of materials for the core of the cross and the counter rails, a material should be chosen that ensures perfect welding of these materials in the combinations mentioned. As a material for making the cross, a combined part can be selected, the rolling surface of which wheel is made on steel with aging composition with the following composition,%: C, 05; TI 0.1-1; Si 0.01-0.2; CrO-13; Mrt 0.01-0.2; A &amp;0-0.2; Co 0-15; B 0-0,1; Mo 1.5-6; Zr 0-0,1; No. 7-20.

Steel of this kind can be welded well and in a condition annealed by diffusion annealing can be well processed. Such grades of steel are distinguished by the fact that due to aging at 200-600 ° C, they acquire very high hardness with good viscosity, which is achieved due to martensitic transformation and / or precipitation of intermetallic phases. The counter rails can also consist of a composite material of this kind or, for example, rolled from austenitic high manganese steel. In addition, the cruciform core can be made in a known manner from an austenitic high-manganese steel sheet, and the counter rails can equally well be made from austenitic high-manganese steel in order to simplify welding and subsequent heat treatment. During the welding process, attention must be paid to directional temperature control in accordance with the selected raw materials, with the positioning of the intermediate elements taking into account the improved vibration characteristics of the whole structure,

Claims (3)

Claim 1. In the cross, containing the core, the counter rail and gasket elements placed between the core and the counter rail and welded with. these, the spacer elements have a lower height compared with the height of the neck of each contrail, which, in order to reduce maintenance costs, each spacer element is made in the form of a tile, the height of which is less than its width, is 0.5 -3.0 of its width, with the width of each tile being equal to the distance between the core and the counterrails and its main plane is oriented longitudinally relative to the counterrails and the core, and the tiles themselves are placed along the cross with intervals between them equal to 3-5 of their length. 2. The cross according to claim 1, about tl and h and y and a so that the height of the tile is 1 / 3-2 / 3 of its width, mostly 0.5 of its width.  S 6 1 6 3. A cross according to claims 1 and 2, from the right side so that the counter rails in front of the core are welded to each other with at least one spacer element. FIG. 2