RU2525943C1 - Slip switch - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: design of railway slip switch provides making of through window in thickened section of stock rail web. Projection provided on switch blade permits to push through the window appearing obstacles such as snow, ice or small stones. The window of stock rail can accommodate supports which will additionally strengthen rail section.

EFFECT: higher reliability and stability of slip switch operation in winter.

2 cl, 1 dwg

Description

The invention relates to track facilities of railway transport, in particular, turnouts, the work of which, especially in winter, should be stable, reliable, as it is related to the safety of following trains.

Known structures and methods for improving the reliability of turnouts are mainly associated with movement systems and types of wits, as well as with heating devices for the location of turnouts on railroad tracks. For example, the RF patent on the arrow of the railroad switch No. 2097467, ЕВВ 007/02, application No. 96109734, 1991; or a similar patent for a utility model of the Russian Federation No. 87678 according to the application 2009123379 dated 06/19/2009; or but the patent of the Russian Federation for a crosspiece for rail crossing No. 2410481 of 10/20/2011 and others. The disadvantage of such solutions is that they mainly offer either some private structural improvements for individual switches, or they offer electric heating mainly in the areas of the wits and frame rails. However, neither one nor the other is effective, in particular during snowfall, due to the cost of electric energy, they do not eliminate fragments of ballast, pieces of crushed stone, etc. from the path of moving wits. Other technical solutions for turnouts are also known. For example, patent No. 2395637, published on 07.27.2010; Invention of the USSR No. 1703754 dated January 17, 90; SU 1837026, 08.30.1993; US 005620156 L from 1997; RU 2369676 dated 02.15.2008; No. 122392 (patent for utility model) dated July 31, 2012 and others in which there are no mechanical technical solutions that prevent, in particular, the unimpeded removal of small gravel, ice and snow from the junction of the wit to the frame rail.

The closest technical solution in relation to the claimed one is a patent of the Russian Federation of class Е01В 7/00 but application No. 981201891/28 of 03.11.1998 "Turnout". It uses an electric drive with a working traction to move a pair of wag railway rails to switch the movement of the train on a straight or branch path.

However, in this technical solution there are the above-mentioned disadvantages, which does not guarantee the reliable operation of the wiggling system, both in winter and at other times of the year.

The objective of the invention is to increase the reliability of the turnout switch both in winter and in other seasons of the year in the event of snow, ice, small stones or rubble getting into it on the way of moving wits to frame rails.

The technical result is achieved by changing the design patterns of the execution of both the frame rail and the wit. In particular, for the frame rail, a through window is provided in a reinforced version of the cross section of the rail neck, through which free pushing of possible obstacles (snow, ice, stones) is provided to ensure that the wit is easily and tightly connected to the frame rail when switching the switch.

The design of the wit provides for a shaped protrusion, which, when moving, can enter a window made in a frame rail, pushing out the listed obstacles to the outside of the rail gauge, which interfere with the standard operation of the railroad switch.

The list of figures explaining the essence of the invention. Figure 1, a, b, c - General view (a) and fragments (b) and (c). In figure 1 is indicated:

1 - the head of the frame rail;

2 - neck of a standard rail (dashed contour going from top to bottom);

3 - window wall in the neck of the frame rail;

4 - through window in the neck of the frame rail;

5 - wit;

6 - ledge shaped wit;

7 - the “nose” of the protrusion of the shaped wit coming out from the window of the neck of the frame rail when pressing the wit to the frame rail.

On figb designated:

1 - the head of the frame rail;

3 - window wall in the neck of the frame rail;

4 - through window in the neck of the frame rail;

8 - support inside the window 4 through in the neck of the frame rail.

On figv designated:

5 - wit (fragment);

8 - support inside the window 4 through in the neck of the frame rail (the window itself is not shown);

9 - shaped groove in the wit as a mate to the support 8.

In statics, the turnout can be both in the open position and in the closed position, which is a typical state for such systems.

The principle of the invention is that when a wit 5 comes into contact with the head of the frame rail 7 (or the rail itself) of obstacles in the form of snow, pieces of ice or small stones, a wit moving with a standard drive with its shaped protrusion 6 and "nose" 7 is inevitable pushes obstacles out of the rail space. Due to the unimpeded movement of the wit to the side to the frame rail, their reliable mutual contact / closure is guaranteed. This provides increased reliability of the switch at any time of the year. Additional supports 8 can be installed in the made windows of frame rails only in those cases when the dynamic loads from heavy and high-speed passing trains can create excessively high stresses that are dangerous for maintaining the strength of this design, although a substantial increase in the thickness of the cross section of the neck of the frame rail to safe values was originally provided if there is a made window in it 4. The pointed configuration of the supports 8, oriented towards the movable wit 5, having response carotid groove 9 facilitates the unimpeded removal of possible obstacles from the above zone abutting tongue to the stock rail.

The slopes on the part of the protrusion 6 of the shaped wit 5 and the general configuration are such that due to the slopes made from them, snow and pebbles will slide down towards the window 4 and the “nose” 7 of the ledge of the shaped wit. When it is closed to the frame rail, all foreign fragments of snow, ice or small stones will be freely pushed out of the rail track through window 4, made in the thickened wall 3 of the neck of the frame rail.

The practical usefulness of the proposal is to provide significantly greater reliability of the switch at any time of the year due to the automatic (without human intervention) removal of possible obstacles during its operation.

Potentially, such a constructive improvement can be inherently used in other turnouts, for example, for rail tram tracks.

Claims (2)

1. A turnout switch containing a wit and a frame rail, characterized in that the frame rail has a through window in the thickened neck, and the wit has a shaped protrusion, the dimensions of which are slightly smaller than the size of the made window, with the nose position open relative to the frame rail »The projection of the wit is partially located in the window of the frame rail. 2. The turnout switch according to claim 1, characterized in that, within the window of the frame rail, in order to further increase the strength of the rail section, supports can be located, the pointed part of which is directed into the rail space, and the protrusion of the shaped wit has corresponding corresponding recesses with respect to the supports.

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