SU1296462A1 - Rail circuit for cross-over tracks - Google Patents

Abstract

The invention relates to the field of railway automatics and telemechanics, in particular to track circuits, and provides increased reliability. The rail circuit has transceivers 4 connected at its ends via matching elements 1 and coding control units 2 to rail wires 3, to which a unit 6 for shunting insulating exit ramps is also connected on both sides of the insulating junction 5 of the cross ramp. Through choke transformers 11, located in the exit zone, the traction current is connected to adjacent rail circuits. Rail circuit operates as follows. When the train is moving in the forward direction, block 6 transmits a signal current in the transverse direction to the rail threads 3 from transceivers 4 controlled by blocks 2. Coding is not supplied to the exit rail circuit. When the train is moving along the exit, the corresponding insulating joints 5 in the exit zone are shunted, forming a continuous rail circuit along the entire length of the exit. The signal current and the current of the automatic locomotive signaling, which are received from transceivers 4 through blocks 2 and matching elements 1 into the track circuit, flow around all elements of the circuit. The rail circuit of the exit that is not participating in the given march does not work at this time. 1 hp f-ly, 2 ill. W 10 It 11 h. (&Amp;; (L Yu x o i a to (rig /

Description

The invention relates to railway automation and telemechanics, namely to track circuits.

The purpose of the invention is to increase reliability.

FIG. 1 is a block diagram of a track circuit for cross ramps; in fig. 2 is a block diagram of the shunting of the insulating joints of the cross exit.

The rail circuit (Fig. 1) has transceivers 4 connected at its ends through matching elements 1 and coding control units to rail threads 3 directly to congresses 4. Bypass rails on either side of insulating joints 5 or otherwise, the bypass block 6 is connected insulating joints "diamond, consisting of three contactors 7, 8 and 9, having respectively switching contacts 7.1, 7.2, 8.1, 8.2 and 9., 9.2 (Fig. 2). The insulating joints 10 of the arrow are aligned on the ordinate in accordance with the allowable lengths of the cuttings of rails. Additionally, choke transformers 11 are installed, located in the exit zone, through the midpoints of which the current is traced to adjacent rail circuits. They are connected to rail threads by the main windings, and additional ones to coding control units 2. To the middle points of the choke transformer 11 is connected to the inter-jumper 12.

Rail circuit operates as follows.

When the train is moving (even “H or odd” H, Fig. 1) in the forward direction, the transmission of the signals of the automatic locomotive signaling is performed opposite the movement of the train. The traction current of asymmetry is aligned with an inter-bridge jumper 12 connected to the middle points of the choke transformers 11. At the same time in block 6 (Fig. 2) the contactor 8 is in the excited state and its contacts 8.1 and 8.2 are closed, which leads to another inter-crossing jumper in the zone “diamond of the congress. With the aid of pin 8.1, an electrical circuit is formed for the signal current of the track circuit in the transverse direction. Through the matching elements 1, the rails 3 directly exits the signals from the transceivers 4, which are controlled by

blocks 2. The coding of these track circuits is not performed at this time.

When the train moves along the exit of the coding control unit 2, the contactor 8 of the block 6 is turned off, its condition is checked, one of the contactors 7 or 9 is turned on, as a result, contacts 7.1, 7.2 or 9.1, 9.2 are closed with checking their condition, 4 through matching elements 1 to rail nit m 3

depending on the given route. The closure of contacts 7.1 or 9.1 leads to a short circuit of the corresponding insulating joints 5 in the area of the cross exit, forming a continuous rail

the chain along the entire length of the march. The signal current and the current of the automatic locomotive signaling, which are received from transceivers 4 through coding control units 2 and matching elements 1 into a rail circuit,

all elements of the circuit are flown around. The exit rail circuit that is not participating in a given route does not work at this time. All hostile dependencies are performed by block 2 before the traffic light is opened. Monitoring the state of the switch sections in the main directions of movement that are not participating in the route is included as part of a given route.

Claims (2)

1. Rail circuit for cross-ramps, limited by insulating joints, containing connected to the rail threads at its ends by one of the outlets through matching elements blocks control coding, to the inputs of which transceivers are connected, characterized in that, in order to increase reliability, it is equipped with a block for bypassing isolating joints of the cross exit, with inputs connected to other outputs coding control units and outputs to rail threads on either side of the corresponding insulating joints of the cross congress. 2. The circuit according to claim 1, characterized in that the block shunting insulating joints the cross exit contains contactors, the windings of which form the inputs of the unit, and the switching contacts of the contactors - the outputs. cpua.Z