SU1342795A1 - Axle box heating alarm - Google Patents

Abstract

The invention relates to railway train signaling, namely to the control systems of the Eiarpeea axle boxes. The purpose of the invention is to increase V reliability. When the circuit of thermal sensors 1, 2 is broken, the current in the winding of the monitoring relay 3 is stopped and its contacts 3.1 in the alarm circuit are closed. If the current direction switch button is pressed, its contacts 15, 16, 17, 18 switch. In case of breakage of the hose, there is no connection between the temperature sensors of the current in the circuit, and in the case of melting of a low-melting alloy in the temperature sensor, the current passes through diodes 13 or 14, i.e. sound and light signals are preserved. 1 il. Y x SP

Description

one

The invention (.. I liueii from: to railway iu, ie; i; iНЛП) (.chia.iichatsin, namely to systems 1: ont)) ol. heating boxes.

The purpose of the recruit generals; - iioFibniu HHe-

reliability.

In the drawing, the schematic is a schematic diagram of the proposed yr ipoiicTBa.

Device ss) installed on the bushings and 1: connected thermostat sensors 1 and 2, a control relay 3 trimming with contacts 3.1, an alarm lamp 3, a transient diode 5 from a voltage throw, resistor 1 6, limiting current, bell 7, dust switch The reader 8 to simulate the break of the thermal sensor circuit and check 1k thus the health of 1; eii (1 signal of activation with

The conductor of the car, having detected the nature of the signal with the help of contacts 15-18 of the voltage switch button, is to make a decision to stop the train for it to establish whether the box is heated or if the hose breaks, the supply cable to the thermometer is broken, proceed without stop the nearest station and there proceed to repair the hose. In the absence of sig

lamp and bell, switching connectors 9-1:., diodes 13 and 14, connected 20 ° faults, the conductor is only parallel to temperature sensors 1 and 2, the current direction switch in the temperature sensors with contacts 15-18 is periodically checked using a switch 8 signaling circuit status.

the switch is 1 button, which ensures that the circuit is reset to the initial 5 state of gfi without affecting the switch.

The device works as follows.

In the original 1H Cr, the constant 30 current from the source flows in the thermal sensor circuits of the light-melting jumpers of the latter and the winding of the relay 3, as a result of which its coil1; you have 3.1 in the alarm circuit and there is no current in this circuit. When the circuit is broken with a thermal sensor 1 l I and 2 ok in the relay coil. 3 P1eek)) A1tsa.ts, its contacts 3.1 in the signaling circuit. At the same time, bell 7 is ringing and the A ..H lamp is on (TIITC.H.

Ecjni now the chada of the switch buttons nark.1ilsny ToKii, go:) it will cause a change} appended the namesake in the chain

Claims (1)

Invention Formula A device for signaling the heat of the axle box containing a thermal sensor connected to one of the poles of the power source with a shunting element connected to another terminal of one of the windings of the control relay, the other terminal of which is connected to the other terminal of the power source and An alarm unit is connected to the power source, characterized in that, in order to increase reliability, it is equipped with a current direction switch, the first rear contact of which is connected between the first pole of the source power supply and the first output of the thermal sensor, connected through the first front contact with the first output thermal sensors, in case of a break of the control relay winding, between the voltage connecting the thermal sensor 1 with which the second output of the thermal sensor and 2 with the circuit, current in the thermal sensor circuit 1 and 2 is not, and in the case of a melt-connected, the second rear contact of the current direction switch, through the second front contact of which the second terminal of the thermal sensor is connected to the first the second rear contact of the current direction switch is turned on, through the second front contact of which the second terminal of the thermal sensor is connected to the first NIN of a low-melting alloy in a temperature sensor, current of a reversed direction flows through the diode 13 or 14, under the pole of the power supply, and the temperature sensor shunt to the terminals is designed as a diode, VNIIPI Order 4592/18 Circulation 455 Subscription Proizv.-poly. pr-tie, Uzhgorod, st. Project, 4 ) 27952 ka, since the diode 13 or 14 for the reverse current is conductive, i.e. after pressing the switch in case of a broken hose, the sound and light signals remain, and in the case of heating the box, the signals stop. The conductor of the car, having detected the nature of the signal with the contacts 15-18 of the voltage switch button, has the right to decide whether to stop the train to determine whether the box is heated or if the hose breaks, leading to the temperature sensor, to proceed without stopping the nearest station and there begin to repair the hose. In the absence of a signal ° ° fault conductor only Periodically checks with a switch 8 the status of the signaling circuit. Invention Formula A device for signaling the heat of the axlebox containing a thermal sensor with a shunt element connected by one output to one of the poles of the power source, connected by another output to one of the terminals of the control relay winding, the other terminal of which is connected to another output of the power source and through the contact An alarm unit is connected to the power source, characterized in that, in order to increase reliability, it is equipped with a current direction switch, the first rear contact of which is connected between the first pole of the source power and a first terminal of a temperature sensor connected via a first contact with the first front terminal of the control relay coil, between which and the second terminal of the temperature sensor the second rear contact of the current direction switch is turned on, through the second front contact of which the second terminal of the thermal sensor is connected to the first power supply pole and shuntyr This element is designed as a diode,