RU2754279C1 - Electric joint for tone rail chain - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: invention relates to a means of monitoring the states of unbranched track circuits. The electrical joint is a rail of the track section, to the ends of which capacitors are connected, the sections of the rail and capacitors form parallel oscillatory circuits to exclude spreading of the tone frequency current beyond the rail line, the TC is powered from the middle, the left and right rails of the track section are connected by an oblique connector, to fix the shunt at any point of the track section, the state of the TC is fixed by the current value of the supply end, power is supplied to the rail circuit from the track generator via a two-wire line connected to the primary winding of the track transformer, the secondary winding of which is connected to the middle of the TC, the track receiver is connected in series with the track generator using the method for monitoring relative track circuits, i.e. comparing the current value of the current of the supply end of the rail circuit with a threshold value, which is determined as the average value of three measurements of the current of the supply end, measured immediately after the occupation of one of the adjacent TCs.

EFFECT: increased shunt sensitivity in areas where electrical joints are located.

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Description

The technical field to which the invention relates

The invention relates to the field of railway automation and can be used to monitor the states of unbranched rail circuits (RC).

State of the art

A known method of monitoring the states of distillation sections tonal RC [Dmitriev B.C., Minin I.A. Auto-blocking systems with voice frequency track circuits. - M .: Transport, 1992 - 182 p. (4-53 p.)].

The disadvantages of tonal RCs are the presence of zones of preliminary and additional shunting, which reduces the throughput of the site.

There is a known method for monitoring the states of distillation centers with electrical joints, which consists in the fact that a track generator and a track receiver of the signal frequency are connected to the rail line through communication lines, characterized in that the generator and the receiver are connected to different communication lines, moreover, the generator is connected for the duration of the control and the time of the transient processes to the middle of the rail line limited by electrical joints at the ends, the receiver is connected for the time of monitoring the rail line, the time of connecting the track devices is determined by the distributors installed at the EC post and linear installations, the valves are synchronized with a cyclic synchronization signal, to exclude the influence of the inertia of the oscillatory loops of the track receiver and electrical joints, each subsequent connection of the receiver is carried out so that the signal arrives at the input of the receiver in antiphase with the voltage of the previous rail line [Patent No. 2684162 RF. Method for monitoring the states of running rail circuits with electric joints Polevoy Yu.I. Publ. 04/04/2018. Bul. No. 10].

The disadvantage of this method is the presence of track sections in areas where electrical joints are not sensitive to the shunt. When the wheel pairs 10 and 11 of one bogie of the mobile unit 14 are at the rail connector 9 (Fig. 1), the shunt from these wheel pairs is not fixed by anything. Wheelsets 12 and 13 of the other bogie have a 0.12 ohm shunt, i.e. significantly higher than the standard, which may not be recorded by the rail circuit receiver.

This technical solution was chosen as a prototype.

Disclosure of invention

The technical result is to increase the shunt sensitivity in the areas where the electrical joints are located.

An electrical joint for a tonal rail circuit (RC), consisting of a track section rail, to the ends of which capacitors are connected, the rail segments and capacitors form parallel oscillatory circuits to exclude the spreading of the tone frequency current beyond the rail line, the RC is powered from the middle, which differs in that that the left and right rails of the track section are connected by an oblique connector, which makes it possible to fix the shunt at any point of the track section (resonance phenomena in one or both parallel oscillatory circuits are violated, and the current of the tone frequency spreads outside the RC), the state of the RC is recorded by the value of the supply current end, the power to the track circuit is supplied from the track generator through a two-wire line connected to the primary winding of the track transformer, the secondary winding of which is connected to the middle of the DC, the track receiver is connected in series with the track generator, if using the control method for relative rails new circuits [Polevoy Yu.I. Methods and devices for monitoring the location of an object in the rolling stock control system: dis. ... doct. tech. sciences / Yu.I. Field. - Samara: SamGUPS, 2013. - 454 p.], I.e. to compare the current value of the current of the supply end of the rail circuit with the threshold value, which is determined as the average value of three measurements of the current of the supply end, measured immediately after the occupation of one of the adjacent RCs.

Brief Description of Drawings

FIG. 1 shows a track section with an electrical joint and a movable unit, FIG. 2 - track circuits with electrical joints with oblique connectors.

Implementation of the invention

FIG. 1 and 2 show the following designations:

1 and 2 - left and right rails;

3 and 4 - the first and second capacitors;

5, 6, 7 and 8 - connecting wires for connecting capacitors to the rails;

9 - rail connector;

10, 11, 12 and 13 - wheel sets;

14 - movable unit;

15 - EC post:

16 - electronic computer computer;

17 - track receiver 1111;

18 - track generator of steam generator;

19 and 20 - connecting lines;

21 and 22 - track transformers;

23, 24, 25, 26, 27, 28, 29 and 30 - cable lines;

31, 32 and 33 - the third, fourth and fifth capacitors;

34, 35 and 36 - oblique rail connectors;

37, 38, 39, 40, 41 and 42 - connecting wires for connecting capacitors to the rails;

43, 44, 45 and 46 — rail sections used as inductors L1, L2, L3 and L4 to create oscillatory circuits in conjunction with capacitors 3, 4, 31 and 32 and oblique rail-to-rail connectors 34 and 35;

47 and 48 - the first and second track circuits, respectively, РЦ1 and РЦ2;

49 and 50 - the first and second zones of electrical joints.

The first and second electrical joints of the tonal track circuit (RC) RC1 47 are located in the zones ZES1 49 and ZES2 50, the rails of these zones have inductances L1 43, L2 44, L3 45 and L4 46, to which capacitors 3, 4, 31 and 32 are connected , which, together with the inductances L1 43, L2 44, L3 45, L4 46 and the oblique connectors 34 and 35, form oscillatory circuits to prevent the spreading of the tone frequency current beyond the rail line. The imposition of a shunt at any point in the zone leads to a violation of resonance phenomena in one or two oscillatory circuits. The capacitors are connected to rails 1 and 2 with connecting wires 5, 6, 7, 8, 37, 38, 39, 40.

RC1 47 is powered from the middle through the track transformer 21, using the track generator 18 along the connecting line 20 and cable lines 23, 24, 29 and 30, the track receiver 17 is connected in series to the track generator 20. If you use the control method for relative track circuits, those. then it is possible to fix the availability and serviceability of the rail line by comparing the current value of the current of the supply end of the DC with the threshold value, which is defined as the average value of three measurements of the current of the supply end immediately after occupying one of the adjacent DC, if the current value of the current in the cable line 23 and 24 does not differ from the threshold by 10%, then the RC is free and serviceable [Polevoy Yu.I. Methods and devices for monitoring the location of an object in the rolling stock control system: dis. ... doct. tech. sciences / Yu.I. Field. - Samara: SamGUPS, 2013. - 454 p.].

The operation of devices, connecting wires and cable lines 22, 29, 30, 33, 36, 41, 42 of the adjacent RC2 48 is similar.

Claims (1)

An electrical joint for a tonal rail circuit (RC), consisting of a track section rail, to the ends of which capacitors are connected, the rail segments and capacitors form parallel oscillatory circuits to exclude the spreading of the tone frequency current beyond the rail line, the RC is powered from the middle, which differs in that that the left and right rails of the track section are connected by an oblique connector, which makes it possible to fix the shunt at any point of the track section, the state of the RC is fixed by the current value of the supply end, power is supplied to the rail circuit from the track generator via a two-wire line connected to the primary winding of the track transformer, secondary the winding of which is connected to the middle of the RC, the track receiver is connected in series with the track generator, when using the control method for relative track circuits, i.e. comparing the current value of the current of the supply end of the rail circuit with a threshold value, which is determined as the average value of three measurements of the current of the supply end, measured immediately after the occupation of one of the adjacent RCs.

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