SU779140A1 - Point actuator control - Google Patents

Description

(54) DEVICE TO CONTROL THE SWITCH DRIVE

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The device relates to electrical interlocking of the hands and signals on the humps and shunting areas of railway stations.

A device for controlling a streamer drive is known, comprising a starting switch unit connected to a power source through the plus and minus contacts of the arrow of the switch knob and in parallel the connected Contacts of the switch track relay and shunt deactivation button 1.

The disadvantages of the known device are the complexity of the scheme and the ability to transfer the arrow under the rolling stock.

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

The goal is achieved by the fact that the device is equipped with equalizing diodes, a capacitor and a switch control relay switch which is connected through a capacitor to the positive and negative poles of the power source, respectively, via the positive and negative contacts of the arrow knob and connected in series with each of them. diode.

The drawing shows a schematic diagram of the device.

The device contains a relay 1 for controlling the switching of an arrow knob with contact 1.1, which are connected in series with capacitor 2, analog knob 3 with contacts 3.1, 3.2, 3.3, 3.4, 3.5, dissociating Diodes 4 and 5, starting switch unit 6 connected through pushbutton shutdown button 7, and track switch contact 8 (not shown in the drawing).

The device works as follows.

In the normal position of the handle 3 through the contact 3.2, the capacitor 2 is charged until the voltage of the power supply along the circuit: from one pole of the power supply through diode 4, contacts 3.2-3.1 of the handle 3, capacitor 2, winding relay 1 to the other power supply pole.

Relay 1 in this case is without current and its front-contact 1.1 breaks. The hand switch circuit. In the case of preliminary transfer of the switch handle from the positive to the minus position at the moment when the Grill circuit has a mobile unit that does not have a reliable train shunt, as a result which the switch track relay (not shown in the drawing) briefly becomes energized, closure contact 8. However, the switch will not be made, since the power supply circuit of unit 6 will be interrupted by contact 1.1 of relay 1.

When transferring the handle 3 to the minus position and closing its contact 3.3, a discharge circuit of capacitor 2 from one pole of the power source is created through the winding of relay 1, capacitor 2, contact 3.1 of handle 3, contact 3.3 of the switch handle, diode 5 to the other pole of the source nutrition

Thus, the relay 1 will be energized only during the charging or discharging time of the capacitor 2, permanently breaking the switch circuit to the rest of the time.

The proposed device simplifies the scheme of the transfer of the arrow and increases the reliability of its work.

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Claims (1)

Invention Formula A switch actuator control device comprising a trigger switch unit connected to a power source through the plus and minus contacts of the arrow of the switch handle and parallel connected contacts of the switch track relay and shunt shutdown button, in order to increase the control reliability equipped with decoupling diodes, a capacitor, and a switch control relay switch, which is connected via a capacitor to the positive and negative poles of the source power respectively through contact positive and minus contact polo {tim arrow handle and connected in series with each decoupling diode. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 330062, cl. In 61 L 23/08, 1972. + J  / -L 1H-O t1 -Y34