SU108087A1 - A device for measuring the free portions of the two paths of the foothill park - Google Patents

Description

The invention relates to devices for measuring the free portions of the two tracks of the pillbox on the humps of the railways.

The known devices, designed to determine the degree of filling of the paths of the podgorochny park and based on the principle of bridge or differential electric circuits, as well as on the use of a fixed point, are complex and do not provide readings from the required accuracy.

The aim of the invention is to eliminate these drawbacks by using incomplete track circuits and counting schemes for car axles, passing through the piedmont fleet.

The device provides information in the form of a beam; 1chipchip or current according to the length of the unused sections of the track, regardless of the number of rail prices of the path.

The drawing shows a typical control scheme for filling the paths of a pork hill.

The scheme consists of T13 of the following main elements.

Incomplete track circuits on the tracks of the pork park (path and 2 track); supply line of the 1st and 2nd paths; measuring highway of the 1st and 2nd routes; a device that determines the desired length of the free area, taking into account the length of the moving unhooking.

When filling the plots of the track with uncoupling, the primary windings of the track transformers PT are closed by slopes only a short time.

An increase in the current in the primary winding of the transformer triggers the operation of the YAR track relay included in the primary winding of this transformer. All the following PR relay relays will not be able to operate, because the supply line is open by the rear contact of the YAR track relay of the first occupied section of the track.

The measuring line, the state of the series-connected secondary windings of the measuring transformer PT, the contact of the relay YAR switches so that the rectified voltage at the output of the measuring magnet becomes equal to the sum of the voltages produced by the transformers / 77 included in the measuring circuit. before first uncoupling the insulated section. Since the voltage of each PT transformer is nonlinear to the length of the insulated area serviced by it, the voltage is always proportional to the length of the free path.

In order to take into account the length of I x when the uncoupling moves, a storage device is provided in the circuit (no., The voltage Ux obtained in the absence of uncoupling movement but the path of the pitch park).

When the uncoupling enters the track section in front of the retarder, the RV relay is excited and connects capacitor C to the contacts of the pedal relay. The operation of the PRD relay, when the pitching of the uncoupler passes through the pedal I, causes the discharge of the capacitor Ci connected to the common contacts of the PRD relay to the capacitor C.

Since the Ci capacitor Ci has a small capacity compared to the capacitor C and is charged with a reverse high voltage charge, the decrease in the voltage Ux of the capacitor C is almost proportional to the number of skates passed through the pedal, and the succession to the length of the switch. After the last pull-down of the uncoupling from the track section of the RV relay, during the time of departure from the stop to the point of stopping, it keeps the measles in a tightened state, disconnecting the capacitor C from the measuring line.

With the help of contacts connected with the hump diagram of the automatic centralization of the CMR control and routing relays, the choice is made of the path from which information should be received for the next person who follows this path.

The wire, which is the common wire of the supply and measuring line, is also used as a common wire for the power supply, meter and measuring magistra.; Thus, the measurement of the degree of filling of the tracks of the porky park according to the proposed scheme requires the cost of five wires for each two ways.

. Subject invention

Claims (2)

1. A device for measuring the free sections of the two tracks of the pitch park with the use of rail chains and the power supply and the measuring lines, characterized in that, in order to reduce the consumption of the cable in the highways, it is made with a flexible cable, transmitting. m information in the form of voltage or current, respectively, the length of the unoccupied sections of the track, regardless of the number of track circuits of the path. 2. The form of the device according to claim 1, wherein the path occupancy is determined according to MecTV by stopping the tail of an uncoupler using an axis counting scheme and is expressed by the magnitude of the voltage subtracted from the total voltage depending on the degree of filling. and received on the measuring line.