SU1131725A1 - Device for controlling electric rail switch actuator - Google Patents

Abstract

A DEVICE FOR CONTROL OF A SWITCH ELECTRIC DRIVE containing a pe.ie start-up block, a starting switch and a closing relay, which is connected to the closing contact of a switch track relay, and a parallel relay contact connected to the common contact are included in the supply wires of the station. push-button relays and a closing contact-general closing relay for receiving, sending and maneuvering, characterized in that, in order to increase reliability, it nabzheno mounted on the central post and connected to said line conductor current relay in the power circuit of which includes a make contact of the switch trigger and closing relay and reverse current repeater relay normally open contact which is included in the power circuit of the switch trigger and zamykayuscheIS th relay.

Description

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The invention relates to automation and telemechanics and can be used in devices for the electrical centralization of arrows and signals, mainly in small stations.

A device for controlling a switch actuator is known, which contains a starting relay block, a switch starting and closing relay placed in the station neck, and a closing relay of the switch relay is connected to the power supply circuit, and the common repeater of the push-button switches are connected in parallel with the specified contact relay and closing contact of the general closing relay for receiving, sending and maneuvering 1.

A disadvantage of the known device is the presence of six linear wires, a large number of relays and their contacts, as well as the possibility of a dangerous failure of polarized relays.

The purpose of the invention is to increase the reliability of the device.

The goal is achieved by the device for controlling a switch motor drive containing a starting relay block, a switch start switch and a closing relay, which is located on the station neck, and has a make contact relay circuit connected in series with the specified contact. the closing contact of the common repeater of the push-button relays and the closing contact of the common closing relay for receiving, sending and maneuvering, is fitted with nnym at the central office and connected to said line conductor current relay in the power circuit of which includes a make contact of the switch trigger and closing relay and reverse current repeater relay normally open contact which is included in the power circuit and the switch starting closing relay.

FIG. 1 shows a block diagram of the device; in fig. 2 is a circuit for connecting an arrow to the power supply circuit; in fig. 3 - electrical circuit diagram of the switching on of the starting and closing relays; in fig. 4 is an electrical circuit diagram of the connection to the power supply circuit of a common closing relay for reception, departure and maneuvering; in fig. 5 is an electrical circuit for connection to the power supply circuit of a current relay.

The device contains a unit 1 turning on the electric drive, connected with the block 2 of the arrow closure when occupied by the switch section, the block 3 of the arrow closing in the route, the block 4 controlling the operation time of the arrow on the friction, and also through the linear wires 5 with the block 6 starting and block 7 of the switch electric drive. The device is powered

from an alternating current source 8 with a rectifier 9. The device contains an odd current relay 10 with contacts 10.1 and 10.2, an odd switch-off starting and closing relay 11 with contacts 11.1 and 11.2, an odd common closing relay for receiving, sending and maneuvering 12, having contacts 12.1 and 12.2, reverse follower 13 of the current relay with contacts 13.1 and 13.2, closing contact of the switch-track relay 14 and contacts 15 and 16 of the common repeater of the push-button relays. In the power supply circuit of the switch and start and closing relay 11, the closing contact of the relay 17 of the test arrows, the opening contact of the even switch start and closing relay 18-20, the trip contacts of the relay 21 and 22 of the readiness of the routes are included. In the power supply circuit of an odd common closing relay, the closing contact of the odd closing contact is switched on for receiving, sending and maneuvering 12

relay 23 for receiving trains, the closing contact of the even-closing relay 24 for departing trains, the contacts of the March closing relays 25 and 26, the closing contact of the slow-acting arrow track relay 27 and the closing contact of the switch emergency relay 28. The even current relay 29 is included in the circuit power supply unit 7. In the circuit of the reverse follower of the current relay 13 the disconnecting contacts are even 29.1 and odd

10.2 current relay. Parallel to the coil of the common current relay 13 are connected in series the capacitor 30 and the resistor 31.

The device also contains an alarm relay 32 with contacts 32.1 and 32.2, which

 The rectifier 9 is connected either to an alternating current source or to a semiconductor converter 33. At the output of the rectifier 9, instrumentation - a voltmeter 34

5 and ammeter 35.

The device works in the following way.

When the route setting button is pressed, a common button relay is energized, which closes its closing contacts 15 and 16 in the power supply circuit of the odd switch start and closing relay 11. The odd switch and starting closing relay 11 rises to the absence of route readiness (opening contacts of the route ready relay 11 21 and 22 from the corresponding paths are closed) to exclude the possibility of translating the arrows in the even throat of the station (the opening contact of the even arrow start and closing relay 18 is closed), as well as the absence of hostile routes (closing contact of an odd common closing relay for receiving, sending and maneuvering 12.2). The odd switch-off starting and closing relay 11, the closing closing contacts 11.1 and 11.2, provides switching of the operating current in the line wires, in the starting relay block b and block 7. The device is powered from the AC network through the closed closing contacts 32.1 and 32.2 of the alarm relay and rectifier 9. When the alternating current is turned on, the emergency relay 32, with its disconnected disconnecting contacts 32.1 and 32.2, connects the input of the rectifier 9 to the semiconductor converter 33, operating from a backup power supply battery. The operation of the switch is controlled by an odd 10 and even 29 current relays depending on which station of the station is located. The odd current relay 10, with its closing contact 10.1, shunts the switching contact of the common repeater of the button relays 16 and the contact of the odd common closing relay 12.2 connected in series with the last one in reception, departure and maneuvering, which ensures that the switch is only provided with a free arrow track. Switching off the switch when working on the friction (for example, if a foreign object gets between the sharp and the frame rail) is provided with a reverse follower of the current relay 13, which is installed one for the whole station. Local control of the arrows along the main circuit of the operating current is carried out by closing the contact of the relay 17 for testing the arrows. With hard control of arrows, control of the freeness of the switch section is ensured, and in emergency mode, control of arrows is carried out with the permission of the station attendant. The proposed device is more reliable and simpler than the known one, since one set of relays installed at the central post is used, instead of installations at each station mouth of a separate set of devices in the relay cabinets. In addition, a smaller amount of signal cable is required (two wires instead of six currently used). /J.2 Phag.Z 11

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Claims (1)

DEVICE FOR CONTROLLING AN ARROW ELECTRIC ACTUATOR, comprising a starting relay block included in the linear wires and located in the neck of the station, an arrow starting and closing relay, the power circuit of which includes a closing contact of a directional relay, and a parallel repeating contact of a common repeater is included in parallel with said contact push-button relays and a make contact The current relay is installed at the central post and connected to the aforementioned linear wires, the power supply circuit of which includes the make contact of the arrow start and make relay, and the reverse follower of the current relay, the make contact of which is included in the power supply circuit of the start and make relay.