RU2090418C1 - Device for automatic blocking with track circuits without insulated rail joints - Google Patents

Abstract

FIELD: railway transport; signalling systems; interval traffic control on block sections. SUBSTANCE: device has track generators, track section circuit receivers and block section border circuit receivers with track relays at outlet, train passage control relay, light signal danger light blocking relay, line circuits with line relays, check up relay 11 and blocking relay 13. Device has additionally train approach annunciator relay and special relay. Train approach annunciator relay is connected to supply source of signal unit preceding in direction of movement. EFFECT: improved reliability of operation. 4 dwg

Description

 The invention relates to devices for signaling, centralization and blocking in railway transport, and in particular, to devices for interval regulation of train movement on the stages.

 A device for automatic locking with rail circuits without insulating joints, containing track generators and receivers of rail circuits located on sections of the path between the traffic lights, track relays installed at the outputs of the receivers, casting relays, the excitation circuit of each of which includes a rear contact of the corresponding lock relay prohibiting the indication of a traffic light, the winding of which is connected to a power source through its own front contact, and a relay for monitoring the train following a section of the track.

 The disadvantage of this device is that if, at the moment of approaching the traffic light, a shunt is placed on the rail circuit of the block section boundary behind the traffic light, which will lead to the inclusion of a prohibitory indication at the traffic light, and then the rail chain will lose the shunt in front of the traffic light as a result of braking using sand sensitivity, then at the traffic lights behind the tail of the train an enable signal indication will be turned on.

 The technical result, the achievement of which the claimed invention is directed, is to increase the safety of train traffic.

 The technical result that can be obtained by using the invention is that any accidental shunting of any rail circuit included in the block section does not lead to the blocking (closure) of the prohibiting indication of the traffic light or to its release (opening) and the appearance behind the tail trains when the shunt sensitivity of the rail circuit of the enable signal indication is lost.

 The problem is solved due to the fact that the device for automatic blocking with rail circuits without insulating joints, containing track generators and receivers of rail circuits located in sections of the path between traffic lights, track relays installed at the outputs of the receivers, linear relays, in the excitation circuit of each of which includes the rear contact of the corresponding relay blocking the prohibiting indication of a traffic light, the winding of which is connected to the power source through its own front contact, and the monitoring relay of the train along the track section, equipped with repeaters of the train monitoring relay along the track section, release relays and relay-sensors of proximity to the traffic light, the winding of each of the latter is connected to the power source through series-connected front contacts of the track relays of the rail circuit receivers located on the first along the movement of half of the track in front of the corresponding traffic light, and its rear contact and the group of parallel-connected rear contacts of the track relays of the rail circuit receivers, In the second half of the indicated section of the track, they are connected in series to the power supply circuit of the corresponding train monitoring relay along the section of the track, the front contact of which is connected parallel to the rear contact of the relay-proximity switch of the train to the traffic light, while the traffic light readings are connected in series to the rear rear contact of the inhibit signal blocking relay the front contact of the repeater of the relay monitoring the movement of the train along the section of the track in front of the traffic light and the rear contact of the track relay the receiver of the first rail circuit, located on the track section behind the traffic light, the power circuit of each unlocking relay is formed by the front-mounted contacts of the track relays of all rail circuits located on the corresponding section of the track, and the front contacts of one and the other relays blocking the inhibitory readings of one or the other traffic lights, installed at the entrance to the sections of the track following the above, and the rear contact of the unlocking relay is included in the power circuit of the inhibit relay reading the first of these traffic lights and monitoring switch trains on the section of the path in front of a traffic light data.

 Thus, an increase in safety in this technical solution is achieved by changing the switching circuit of the monitoring relay and blocking relay. The use of a normally de-energized blocking relay is not dangerous, since the front contact of the blocking relay is switched on in the excitation circuit of the code-including relay. And if for any reason the circuit of the blocking relay is broken, then when a signal passes with an enabling signal indication, the codes of the automatic locomotive signaling will not come into the rail circuit behind the traffic light and a white light will turn on at the locomotive traffic light, which will quickly identify and eliminate the damage.

The invention is illustrated by drawings, which depict:
FIG. 1 diagram of rail chains within a block section;
FIG. 2 diagram of the inclusion of the proximity detector relay, the train monitoring relay along the track section and the relay for blocking the prohibiting indication of traffic lights;
FIG. 3 diagram of a linear and code-enabling relay;
FIG. 4 circuit release relay.

The inventive device contains:
1, 2 way traffic lights, the distance between which forms a block section;
3 track generators of rail chains;
4 rail chains of the boundaries of the block;
5 rail chains of track sections;
6 receiver circuit rail borders of the block (the first half of the block) with the contacts of the track relay 6.1, 6.2, 6.3, 6.4, 6.5, 6.6 and 6.7;
7 receiver of the rail circuit of the track section (the first half of the block section) with the contacts of the track relay 7.1, 7.2, 7.3, 7.4, 7.5 and 7.6;
8 receiver of the rail circuit of the track section (the second half of the block section) with the contacts of the track relay 8.1, 8.2, 8.3, 8.4, and 8.5;
9 receiver of the rail circuit of the boundary of the block section (the second half of the block section) with the contacts of the track relay 9.1, 9.2, 9.3, 9.4, and 9.5;
1- proximity proximity relay with pin 10.1;
11 monitoring relays with contacts 11.1, 11.2;
12 repeater of the monitoring relay with pin 12.1 (slowly acting on attraction);
13 interlock relay with contacts 13.1, 13.2, 13.3, 13.4, 13.5, 13.6, 13.7 and 13.8;
14 linear relay with contacts 14.1, 14.2;
15 code switching relay;
16, 17 resistors;
18 contact fire relay;
19 release relay with contact 19.1
In this case, the proximity relay 10 is connected to the power source of the previous signal installation (not shown in the drawing) through series-connected front contacts 6.1, 6.2, 7.1, 7.2 of the track relay of the rail circuits of the track section 5 and the boundary of the block sections 4 related to the first half of the block section along the train. In the excitation circuit of the relay 11, the rear contact 10.1 of the proximity switch 10 is connected in series, parallel to which the front contact 11.1 of the relay 11 is connected, and the rear contacts 8.1 and 9.1 of the track relays 8 and 9 of the rail circuits of track section 5 and border of block 4 to the second half of the block. In the excitation circuit of the relay 13, the rear contact 6.3 of the rail track relay, located behind the traffic light 3, and the front contact 12.1, which acts slowly on the excitation, of the repeater 12, in parallel with which the front contact 13.1 of the relay 13 is connected, are connected in series.

 In the power circuit of the unlocking relay 19, the front contacts 6.6, 6.7, 7.5, 7.6, 8.4, 8.5, 9.4, 9.5 of the track relays of all rail circuits included in the block section and the front contacts 13.5, 13.6, 13.7, 13.8 of the relay 13 are connected in series settings (not shown in the drawing). The rear contact 19.1 of the enable relay 19 is included in the power circuit of relays 11 and 13.

 A feature of automatic blocking with rail chains without insulating joints is that four rail chains are organized within one block section, two of which “4”, shortened to 150-250 m, serve as electronic joints (boundaries of block sections), and two "5" refer to sections of the path. Due to the fact that rail circuits without insulating joints have a shunting zone (point), in order to avoid overlapping traffic lights in front of a moving train, the traffic lights 1 and 2 are allocated from the actual border of the block section (the connection point of the track generators of rail chains 3) towards the movement 20-25 m trains. Two adjacent rail circuits are powered by one track generator.

 Normally, in the absence of trains, all the rail circuits of the block section are free, the track relays are energized and the traffic lights have an enable signal indication.

 When the train follows the traffic light 1, the rail circuit of the boundaries of the block sections 4 is shunted, the track relay of the receiver of the boundary of the block section 6 is anchored, contacts 6.1 and 6.2 disconnect the power of the proximity detector relay 10 located on the signal installation of the traffic light 2.

 Relay of proximity knob 10 releases the anchor and, by contact 10.1, prepares the excitation circuit of relay 11, but the latter will pull the anchor only after the train enters the second half of the block section and the anchor of the track relay of the rail circuit receiver of the track section 8.

 Relay 11, pulling the armature, turns on the repeater slowly controlling the relay 12, which, pulling the armature with pin 12.1, prepares the excitation circuit of relay 13. But the latter will pull the armature only after the train follows the traffic light 2, where the rail circuit shunts the boundaries of the next block section, at which the track relay of the receiver of the rail circuit is de-energized, the boundaries of the block section 6 and contact 6.3 will create a circuit for its excitation.

 Then, by pulling the armature, relay 14 closes the self-locking circuit with terminal 13.1, and opens the excitation circuit of linear relay 14 with contacts 13.2 and 13.3, providing a closure (blocking) of the inhibitory indication of the traffic light 2 until the block section behind the traffic light is completely released 2 and the prohibition light will not be switched on at the signal installation next to the traffic light 2.

 After the train enters the traffic light, the travel relays with contacts 6.4, 6.5 or 7.3, 7.4 disconnect the linear relay 14 from the linear circuit, which turns on the signal at the traffic light and connects a resistor 16 having a lower resistance than the winding of the linear relay 14 to the linear circuit and ensures the operation of the code-enabling relay 15, provided that the anchor was closed on the previous signal installation and the relay contact 13.4 closed. Relay relay 19 will receive power from the next signal installation under the condition and that on both signal installations, relays 13 and front contacts 13.5, 13.6, 13.7 and 13.8 are closed, and also subject to the freedom of the block section (contacts 6.6, 6.7, 7.5, 7.6, 8.4, 8.5, 9.4 and 9.5 are closed way relays).

 Release relay 19, pulling the armature with pin 19.1, opens the self-locking circuit of the locking relay 13. The latter releases the anchor and the circuit returns to its original state.

Claims (1)

 A device for automatic interlocking with rail circuits without isolating joints, containing track generators and receivers of rail circuits located in sections of the path between the traffic lights, track relays installed at the outputs of the receivers, linear relays, the excitation circuit of each of which includes a rear contact of the corresponding interlock relay indications of a traffic light, the winding of which is connected to a power source through its own front contact, and a relay for monitoring the train following a track section, characterized in that it is equipped with repeaters for monitoring the train following a track, releasing relays and relay-tellers of a train approaching a traffic light, the winding of each of the latter is connected to a power source through series-connected front contacts of the track relays of rail circuit receivers located on the first half section of the track in front of the corresponding traffic light, and its rear contact and a group of parallel-connected rear contacts of the track relays of rail circuit receivers located on the second the first half of the indicated track section are connected in series to the power supply circuit of the corresponding train monitoring relay along the track section, the front contact of which is connected parallel to the rear contact of the relay relay of the proximity of the train to the traffic light, while parallel to the rear contact of the blocking relay of the inhibit signal, the traffic lights are connected in series repeater contact of the train monitoring relay along the track section in front of the traffic light and the rear contact of the track relay of the rail circuit located on the track section behind the traffic light, the power circuit of each unlocking relay is formed by the front-mounted contacts of the track relays of all rail circuits located on the corresponding section of the track and the front contacts of one and the other relay blocking the prohibition of the readings of one and the other traffic lights, respectively when entering the sections of the track following the mentioned one, and the rear contact of the unlocking relay is included in the power circuit of the inhibit relay Vågå of these traffic lights and monitoring switch trains on the section of the path in front of a traffic light data.

Images