SU1532403A1 - Apparatus for controlling electric switch machines of twin switches - Google Patents

Abstract

The invention relates to railway automatics devices and is intended to control railroad switches. The purpose of the invention is to increase reliability. This is achieved by the fact that the translation of the arrows of the paired electric drives is carried out without the use of reversing relays using thyristors controlled by sensors 12, 13, 43 and 45. 2 Il.

Description

/ 27

Mr. J5

oh

Yu

(rig 2

The invention relates to railway automation devices and is intended to control railroad switches.

The purpose of the invention is to increase reliability,

FIG. 1 shows the part of the device; in fig. 2 - the floor part of the device -.

The device contains a neutral starting relay 1 with one and the other windings and with contacts 1.1 - 1.5 and a polarized starting relay, relay 2 with

1532403

element 28 is connected through a resistor 32 connected in series the first rear contacts 20.1 relays 20, 21.1

J. Relay 21 and the first rear contact 10.1 of the relay 10, the first front contact 10.2 of which is connected in series with the capacitor 30 in parallel with the input and output of the element 28.

Q Parallel to a linear circuit. Connected is a capacitor 33 smoothing the curve of the rectified voltage applied to the connected in series through the first rear contact 1.1

20

thirty

one and the other winding and contacts of relay 1 to one winding of relay 10 and winding 2.1 - 2.k, of which one winding of relay 1 and both windings of relay 2 are connected to a direct current source with poles 3 and through contacts 5 and 6 of the switch switch, contact 7 of the closing relay, contact 8 of the track relay (no data is shown in the winding of the relay) and contact 9 of the auxiliary button, auxiliary control relay 10 with one and the other windings and with contacts 10.1 - 10.7, latching relay 11 s contacts

11.1 and 11 .2, made by contactless-I sensors 12 and 13, respectively

I switch actuators and one position of arrows, having primary 12.1 and 13.1 windings and additional 12.2, 13.2, 12.3, 13.3, 12.it, 13..4 windings, resistors I t and 15 included in the circuit of the windings of sensors 12 and 13, and in the winding circuit of other sensors, valve elements 1b and 17, made on thyristors, are included, respectively, nonlinear resistors, respectively 18 and 19, and control relays 20 with contacts 20.1, 20.2 and one relay 21 with contacts 21 are connected to the control inputs, one,

21.2 the other position of the arrows, made slowly acting.

In the power supply circuit of the other winding of the relay 1 from the power source of the operating current j with poles 22 and 23, the precursors 2k and 25 turn on the electric I – I motor 2b of the direct current with the magnetoelectric excitation of the drive actuator 27 and the controlled key -; element 28, made on the thyristor and connected in series with the contact 29 of the protective relay (about

ke relay 11. The latter are connected to the drives through the linear wires. Between the first front contact 1.2 of relay 1 and sensors 12 and 13, connected in series are second rear contacts 20.2 and 21.2 of relay 20 and 21 and through forward 10.3 and reverse 10. t contacts of relay 10 are additional valve elements 25 37 and 38 made on diodes.

Another winding of the relay 10 is connected to a power source with poles 3 and through the contacts 33 and the OO switch switch. A sensor 43 with windings 43.1 and 43.2, 43.3 of the second drive 44 and a fourth sensor 45 with windings 45.1, 45.2 and 45.3 connected to the elements electrodes (thyristors ) 46 and 47 through diodes 48 and 49, resistors 50 and 51, capacitors 52 and 53 with windings 12.4 and 13.4 - elements electrodes (thyristors) 54 and 55 through diodes 56 and 57, resistors 58 and 59. Elements 46 and 47 are included in the circuit of the electric motor 26 switch gear 27, and the elements 54 and 55 - in the chain of the electric motor 60 switch gear 44,

All additional elements related to the working circuit of the electric motor 26 are located in block B1, and the elements related to the chain of the electric motor 60 are located in block b2. Blocks B1 and 62 are located respectively in boom drives 27 and 44,

The device works as follows.

In the initial state, it functions

40

45

50

the coil is not shown). To the connection point of the control circuit: one output winding winding of the relay 1 and the anode of the element 2843.2 sensor 43 of the positive position

connected by a locking capacitor 30 I through a resistor 31. In the control circuit

switch gear 44; parallel circuits: nonlinear resistor 18, control

relay 1 single winding relay 10 and winding

ke relay 11. The latter are connected to the drives through the linear wires. Between the first front contact 1.2 of relay 1 and sensors 12 and 13, connected in series are second rear contacts 20.2 and 21.2 of relay 20 and 21 and through forward 10.3 and reverse 10. t contacts of relay 10 are additional valve elements 37 and 38 made on diodes.

Another winding of the relay 10 is connected to a power source with poles 3 and through the contacts 33 and the OO switch switch. A sensor 43 with windings 43.1 and 43.2, 43.3 of the second drive 44 and a fourth sensor 45 with windings 45.1, 45.2 and 45.3 connected to the elements electrodes (thyristors ) 46 and 47 through diodes 48 and 49, resistors 50 and 51, capacitors 52 and 53 with windings 12.4 and 13.4 - elements electrodes (thyristors) 54 and 55 through diodes 56 and 57, resistors 58 and 59. Elements 46 and 47 are included in the circuit of the electric motor 26 switch gear 27, and the elements 54 and 55 - in the chain of the electric motor 60 switch gear 44,

All additional elements related to the working circuit of the electric motor 26 are located in block B1, and the elements related to the chain of the electric motor 60 are located in block b2. Blocks B1 and 62 are located respectively in boom drives 27 and 44,

The device works as follows.

In the initial state, it functions

control circuit: single output winding 43.2 sensor 43 plus position

control circuit: single output winding 43.2 sensor 43 plus position

switch gear 44; parallel circuits: nonlinear resistor 18, control

chain element 16 and its input and output after unlocking; parallel to the circuit: line wire 35, rear contact 1. relay 1; input and output of the element 46, electric motor 26 switch gear drive 27, linear wire rear contact 1.5 relay 1j relay winding 11, contact 1.1 relay 1, one relay winding 10, linear wire 36- (parallel to the line wires 36 and 35 a capacitor 33 is connected), the resistor 1, the leads of the winding 12.2 of the sensor 12, the positive position of the actuator 27, another lead of the winding 3.2 of the sensor of the positive position of the switch actuator 4.; Relay 11 is in the excited state, and the voltage across the winding of relay 10 is sufficient only to switch the polarized core. When translating the paired arrows to a different (negative) position, the handle of the switch switch is turned, as a result of which its contacts 6 are closed, contacts 5 are opened and contacts 39 and tO are switched. Next, the devices (relays 1, 11, 10, 2, 20, thyristor 28) trigger the control part of the device circuit in the prototype sequence.

Then, the working circuit of switch actuator 27 is formed with its sparkless switching: pole 22 of the operating current source, contacts 2. relay 2, front contact 1.4 of relay 1, line conductor 35, input-output element 46, electric motor 26 line conductor 34, front contact 1.5 of the relay one,. fuse 25, contacts 2.3 relays 2, winding relays 1, input and output of element 28, contact 29 of the protective relay, pole 23 of the operating current source. The open state of the element 46 is ensured by the fact that a voltage is supplied to the control circuit from the winding 12.3 of the sensor 12 through the diode 48 and the limiting resistor 50.

At the beginning of the translation of the first arrow, the sensor 12 exits the control position. Therefore, the voltage on its winding 12.2 is practically absent and only a half of the predetermined voltage is applied to the control circuit. As a result, the voltage on the winding of the latching relay 11 is zero, since the control circuit of the element 17 is due to the presence of a nonlinear resistor in it.

five

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five

ra 19 is open, and the element 17 is locked. Furthermore, the winding 12.2 of the sensor 12, the voltage on which was previously summed with the voltage on the winding 43.2 of the sensor 43, performs in this case the function of the additional total (active and reactive components) resistance.

At the end of the transfer of the arrow, the sensor 13 of the switch actuator 27 enters the control position, and the voltage on the windings 13.2, 13.3, 13.4 increases to the indicated values. As a result, spark-free switching off of the motor circuit 26 (first switch driver 27) and turning on the motor circuit 60 (second switch drive 44) during one (positive) alternating voltage half-cycle are performed.

The motor circuit 2b is switched off due to a short current through the open element 46 of a current pulse of sufficient amplitude in the direction opposite to the direction of the operating current, and its subsequent. lock up The voltage in the locking circuit of the element 46 is supplied from the winding 13.3 of the sensor 13 through the separation capacitor 53.

The circuit of the motor 60 is turned on by unlocking the element 54, the control circuit of which is energized from the winding 13.4 of the sensor 13 through the diode 5b and the limiting resistor 58.

Upon completion of the transfer, the second voltage arrows on the winding 13.2 of the sensor 13 of the switch actuator 27 and on the winding 45.2 of the sensor 45 of the switch actuator 44 are summed up. A chain is formed. switching on the winding relA 10:. one output of the winding 45.2 of the sensor 45 5 minus position of the drive 44, the conclusions of the winding 13-2 of the sensor 13 of the negative position of the drive 27, resistor 15, line wire 36, the winding of the relay 10, contact 1.2 of relay 1, contacts 20.2 and 21.2 respectively of the relay 20 and 21, contact 10.4, polarized corr relay 10, diode 38, front contact 1.4 1, line wire 35; parallel circuits: nonlinear resistor 19, the control circuit of the element 17 and its input and output after unlocking; the other end of the winding 45.2 of the sensor 45 of the minus position of the switch actuator. 44.

0

five

0

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five

The voltage on the winding of the relay 10 in this case is sufficient for attracting a neutral core, since the winding of the relay 11 is excluded from this control circuit. The polarized switch of the relay 10 remains in the previously switched position. Next, the element 28 is locked and the relay 1 core in the prototype sequence disappears.

After the crust of the relay 1 disappears, a control circuit for supplying the relay coils 11 and 10 is created: one sensor winding terminal 5 minus position of the switch actuator, winding 13.2 terminals of sensor 13 minus position of the switch actuator 27, resistor 15, line wire 36, relay coil

10, contact 1.1 relay 1, winding relay

11, rear contact 1.5 relay 1; parallel circuits: rear contact 1. relay 1, line wire 35 (parallel to line wires 35 and 36, connection 10

15

20

water, the same set voltage in the control circuit,

When translating the paired arrows in the plus position, the elements, E, 51, 52 and elements 55, 57, 59, respectively, blocks 61 and 62, are functioning.

Winding 12.3 and 43.3, 13.3 and 45.3 sensors., 12 and 43, 13 and 45, respectively, switch actuators, respectively 27 and 44, are connected in parallel, since in this case the electric motor 26 of the first switch actuator 27 is switched on and at the intermediate position of the first arrow .

The message of the line wires and the failure of any element of the device does not cause a dangerous failure.

Claims (2)

The invention The device for controlling the arrows is a capacitor 33), a linear wire with 25 electric drives of coupled streamers, an electric motor 2b, an input and an output of the element 47 unlocked after translation of the arrows; parallel circuits: nonlinear resistor 19, the control circuit of the element 17 and its input and output after unlocking; the other end of the winding 45.2 of the sensor 45 of the negative position of the switch actuator 44. thirty a block containing a starting unit, the first and second outputs of which are connected with the drive electric motor, the third one connected to one of the terminals of one; a coil of one and the other position sensors, the other outputs of which are connected to the first output of the starting block through one of the thyristors connected by an anode to the first output of the starting block, and the control electrode to its own anode through a resistor, the other windings of the sensors are connected to an alternating current source, and Diodes characterized in that, in order to increase reliability, the sensors are provided with additional windings, one of the additional windings of the third sensor being connected in parallel with the second winding of the first sensor, one output is connected to the first output of the starting unit via a capacitor, the other to the first electric motor, one of the outputs of the other additional winding of the third sensor connected in series with the first winding of the first sensor is connected to the third output of the starting unit, between the first output of which and the first electric motor are connected in parallel connected second and third, thyristors, the first of which is connected by an anode to a capacitor, the second to an electric motor, and to a control electrode of a second thyristor Relay 11 switches polarized Measles into reverse polarity and attracts neutral measles. Relay 21 is energized through contact 11.1 of relay 11 and unipolar contacts 11.2 and 2.2 of polarized Koreas, respectively, relay 11 and 2. This ensures control of the minus position of the paired arrows. The polarized measles of the relay 10 is in the reverse polarity position, and the neutral measles is in the missing position, since the voltage on its winding is sufficient only to switch the polarized core. The primary windings 12.1 and 43.1, 13.1 and 45.1 of sensors 12 and 43, 13 and 45 of the analog electric drives, respectively 27 and 44, are connected in series. This maintains the same transformation ratio between the primary and secondary windings of the indicated drive sensors, and therefore, as in the control circuit of a single switch box water, the same set voltage in the control circuit, When translating the paired arrows in the plus position, the elements, E, 51, 52 and elements 55, 57, 59, respectively, blocks 61 and 62, are functioning. Winding 12.3 and 43.3, 13.3 and 45.3 sensors., 12 and 43, 13 and 45, respectively, switch actuators, respectively 27 and 44, are connected in parallel, since in this case the electric motor 26 of the first switch actuator 27 is switched on and at the intermediate position of the first arrow . The message of the line wires and the failure of any element of the device does not cause a dangerous failure. Apparatus of the Invention A device for controlling an electric actuator of coupled shooters 5 electric drives coupled 0 five 0 five 0 a block containing a starting unit, the first and second outputs of which are connected with the drive electric motor, the third one connected to one of the terminals of one; a coil of one and the other position sensors, the other outputs of which are connected to the first output of the starting block through one of the thyristors connected by an anode to the first output of the starting block, and the control electrode to its own anode through a resistor, the other windings of the sensors are connected to an alternating current source, and Diodes characterized in that, in order to increase reliability, the sensors are provided with additional windings, one of the additional windings of the third sensor being connected in parallel with the second winding of the first sensor, one output is connected to the first output of the starting unit via a capacitor, the other to the first electric motor, one of the outputs of the other additional winding of the third sensor connected in series with the first winding of the first sensor is connected to the third output of the starting unit, between the first output of which and the first electric motor are connected in parallel connected second and third, thyristors, the first of which is connected by an anode to a capacitor, the second to an electric motor, and to a control electrode of a second thyristor connected via a cathode resistor to the first diode, the anode of which is connected to the first output of the first additional winding of the third sensor, one of the conclusions of the third additional winding of which is connected to the first output of the starting unit, the other to the anode of the second diode, the cathode of which is connected through the fourth electrode thyristor connected in parallel to the fifth, the anode of which is connected to the first output of the starting block, the cathode to the second electric motor, and one output of the first additional winding of the fourth Bafios ten ten (five A sensor connected in parallel with the second additional winding of the second sensor is connected to the first end of the start-up unit, the second to the anode of the third one, the cathode of which is connected via a resistor to the control electrode of the third thyristor, one of the conclusions of the third additional winding of the fourth sensor is connected to the fourth anode a diode whose cathode through a resistor is connected to the control electrode of the fifth thyristor, to the anode of which another output of the third additional winding of the fourth sensor is connected. 96