RU2578629C1 - Method for recovery of railroad switch - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to construction, in particular to railway transport, and is intended for service life extension of turnout switch due to increased area of contact with rolling stock wheels. Method for recovery of turnout switch consists in head machining of worn-out frame rails of turnout switch and project relative position of rolling surfaces; a side working face of stock rail is subjected to machining, with removing 1.0 mm of metal, while maintaining the inclination angle for covering and pressing the blade. Then, after passage of two trains over this turnout switch it is repeatedly subjected to machining of side working face of stock rail, with removing 1.0 mm of metal. Following that, frame rail aligned to the point of switch points is shifted inwards track and fixed by stops.

EFFECT: as a result, service life of turnout switch is prolonged.

1 cl, 5 dwg

Description

The invention relates to railway transport, namely, to restore directly in the way worn arrow elements for its further operation.

A known method of restoring the turnout (RU, No. 2049842, Ε01B 30/00, publ. 10.12.1995). The essence of the method is the machining of the rolling surface of a worn wag of a turnout switch, in addition, in the root mount of the wit, it is necessary to surfacing a metal layer that can quickly crumble, or rigidly attach a metal plate to tightly connect the adjoining rail using butt plates.

The disadvantage of this method is the low service life of the arrow due to the fact that the metal plates quickly wear out and the root mount is weakened, and the deposited metal layer to align the overlays in the root joint is often painted.

The closest analogue of the invention is a method for the restoration of turnout (RU, No. 2049189 ЕВВ 31/00, publ. 11/27/1995). The essence of this method also lies in the machining of the rolling surface of worn railroad switches and their subsequent installation on the lining to eliminate leaks and support the design relative position of the rolling surfaces. The wag of the turnout switch is machined, while the lining is rigidly fixed to the cushion of the turnout switch, and the root part of the wit is connected to the rail of the direct direction with the help of a stepped insert and overlays.

The disadvantage of this method is its short service life, since it is necessary to manufacture step inserts and linings for the root device of the sharp-pointed arrow, which quickly wear out and require frequent replacement.

The objective of the invention is to restore the health of the direct frame rail with a curved wit, which allows to extend the service life of the switch by increasing the contact area of the frame rail and wit with rolling stock.

The technical result is achieved due to the fact that the method of reconstructing the turnout is implemented, which consists in machining the rolling surface of the worn rail of the turnout switch and ensuring the design relative position of the rolling surfaces, first the side working face of the frame rail is machined, removing 1.0 mm of metal, while maintaining the tilt angle for shelter and pressing the wit, then after passing two trains on the turnout, they are machined again side -hand working face stock rail, taking 1.0 mm of metal, whereupon the stock rail in the alignment of the tip of the arrow is shifted inward tongues gauge and fixed props.

The way to restore the turnout is illustrated using the drawings, where:

- FIG. 1 - Section of a frame rail with a pointed wit;

- FIG. 2 - Frame rail with the image of the removed metal from the side of the working face;

- FIG. 3 - Section with pressed wit after machining the frame rail;

- FIG. 4 - Scheme of fixing the frame rail using props after grinding and after shifting into the track;

- FIG. 5 - Test pattern of the pressed wit of a wit pattern (KOR) control of a wit rail.

In figures 1-5, the positions indicated:

1 - frame rail,

2 - wit

3 - axis of the frame rail,

4 - lateral working face of the frame rail,

5 - the point of the wit;

6 - wit step;

7 - horizontal shelf wit;

8 - the sole of the frame rail;

9 - prop mounting frame rail;

10 - a vertical bolt of an arrow stop;

11 - arrow pad;

12 - mechanical tab wit with an eye;

13 is a template for the control wit rail (KOR);

and fillet of the frame rail;

14 - an inclined face of the control pattern of the relative position of the working faces of the wit and frame rail.

15 - the angle (α) of the slope of the working faces of the wit and frame rail.

The essence of the method of restoring the turnout consists in machining the worn frame rails 1 and observing the relative position of the working surfaces of the wit 2 and the frame rail 1. The side face 4 of the frame rail 1 is machined using a grinding wheel, removing 1.0 mm of metal, then after skipping According to the turnout of two trains, the side face 4 of the frame rail 1 is again machined using a grinding wheel, removing 1.0 mm of metal, after which the frame rail 1 in the alignment striatum 5 (Fig. 3) of the witters 2 is shifted into the rut and fixed with stops 9 (Fig. 4) and a vertical bolt 10 (Fig. 4) The position of the wit 2 on the arrow pad 11 is fixed with a mechanical tab with an eyelet 12 and checked using a template 13, having an inclined face 15 to control the relative position of the working faces of the wit and frame rail, made at an angle (α) 14 (Fig. 5).

Due to the fact that the metal of the frame rail 1 during operation is riveted and can crumble, a layer of 1.0 mm is removed by grinding. Then, after passing two trains on the turnout by machining using an grinding wheel, another 1.0 mm of metal is removed from the side face 4 and the frame rail 1 is moved inside the track and fixed with stops 9.

After machining the lateral working face 4 of the frame rail 1 by a total value of 2.0 mm and checking the relative position of the wit 2 and the frame rail 1 using the wise rail control pattern 13 (Elsakov H.N. To help the track leader. M. Transport, 2007 , p. 35), having an angle (α) 14 of the slope of the working edges of the wit and frame rail 60 degrees (Fig. 5) of face 13, pressed against the side face 4 of the frame rail 1, and the horizontal edge of the template 13 is mounted on the shelf 7 of the wit in section verification, the service life extension is increased by 30-35 percent per year nenii the prototype. On the arrows, which are not included in the centralization, wits in the working position, located on the pillows, are fixed using bookmark 12 with the eye.

Claims (1)

The method of restoration of the turnout switch, which consists in machining the head of the worn out railroad tracks of the turnout switch and ensuring the design relative position of the rolling surfaces, characterized in that the lateral working face of the frame rail is machined, removing 1.0 mm of metal, while maintaining the tilt angle for shelter and pressing the wit then, after passing two trains on the turnout, the side working face of the frame rail is again machined, removing 1.0 mm of metal, after four on the stock rail in the alignment of the tip of the arrow tongues slid into track and fix props.

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