SU66124A1 - A device for actuating any devices, in particular brake shoes or the like. at sorting stations when the rolling stock exceeds the set speed - Google Patents

Description

The proposed device is intended for use on the humps for automatic brake shoes operated by an electric motor, such as, for example, in the French Cadi system, or electrically magnetism, as for example, in the system described in author's certificate No. 55466.

The device aims to ensure that when the car is slowly moving through ne thus, the shoe is also in operation to brake this fast drive, its vagan.

The invention is embodied in the simple inclusion of a group of relays, of which two relays, in parallel, are connected in parallel with the rail pedal in parallel. One of the drivers is fast-paced both for a blink and “a ot1pak” and it has

normally closed contacts, and the second is made slow to release and has (normally open contacts.

The power supply circuit and the full relay is passed through consecutively connected contacts of both, the relay and is closed only at speeds at which the release time of the second relay is longer than the slope time on the pedal.

The drawing shows the electrical circuit of the proposed device.

The active working relays in the device are relays / and //, 1 connected in parallel with each other and in series with the rail pedal. The relay / is made fast-acting both on the closure and on it, and the relay // is made slow to release, which is achieved with the help of me put on the core; day | ЫХ rings, delaying the release of the core for some time t corresponding to the number of rings.

Contacts 6 relays / normal1 are closed, contacts 7 and S relays

// normally in the unlocked position. When the relay is activated, contact1K: Tig 7 and 5 are closed, and, contact 6 is opened, as a result of which (pin, held 4eipe 3 contacts 6, and 7, remains open.

If the time t is longer than the slope time on the pedal, which corresponds to greater speed, then the relay / has time to release the measles earlier than the relay // and the contacts of both relays will be closed for some time and, therefore, the circuit righteous through the contacts. 6-7, is closed until the expiration of the time interval t, after which it (will open again.

This short circuit closure time is used by the rest of the relays to (turn on the control i6amMiaiKOiMi electromagnet.

If the pedal remains pressed for longer than the length of time t, then the relay's measles // disappears sooner, PDM relay /, and thereby breaks the circuit 7, which no longer closes when the relay's / circuit and KOHTaiKToe 6 closes.

If, for example, the pedal has a length of 0.3 m, and the brake; on this section of the hill you need carriages / running 4 m / s, then the time of stay of such a wheel will be 0.3: 075 sec. and, therefore, the deceleration of the relay // must be adjusted to this time; in practice, accuracy in oo (a fraction of a second, which the design of the relay allows to maintain, is quite sufficient).

The relay / receives power through the circuit: terminal 2 of the 24V power supply, pedal, terminal /, point 13, relay coil / and back to terminal 3 of the power source.

Relay // receives power through the circuit: clamp 5 of the 24V power supply, pedal, /, point 13, winding of the relay //, normally closed contacts 10 p% le / I and back to clamp 3 of the I / T source,

The power supply circuit of the relay // should only be closed with a HIQ with a switch so that the relay is disconnected from the circuit immediately upon actuation and that the measles keep the contacts closed for a period of time / measured by the numbers of copper rings on the core.

To turn on the relay, // serves the HI relay, which is turned on when the contacts are closed) 8 relays // and, if activated, breaks in contacts 10 of the Power supply circuit of the relay //.

KaiK mentioned above, the relay // must be de-energized for the entire time that the ramp is on the pedia. This is achieved by self-blocking the relay /// through the contacts 9 of this relay.

Relay IV has the purpose to record the result of the operation of the relay / and //, since the contact given by them is so KpaTKOBipeMeHen that Hie can be used to actuate the working electromagnet. Relay IV is made delayed to release, and therefore, legally, having received short-term power, maintains a current in the relay V circuit for its contacts for the duration of T, which depends on the deceleration time of relay IV.

Relay IV can be activated by the operator, or automatically.

For this purpose, taps 3, 4, and 5 were made of taps (as shown on the puntage point) to the control panel, where a switch for each shoe is installed.

If the switch knob is on contact “on, as shown in the drawing, then the relay circuit IV is as follows: source and 24V, clamp 2, relay IV winding, clamp 4, switch knob and through the clamp. 3 back to the power source.

In this case, the shoe is included forcibly, regardless of the speed and speed of the cars. This may be necessary to repair a shoe or in case of an accident with a carriage in the exact vicinity of the shoe.

If the switch knob is set to x) the “1 OFF” safety contact, then the shoe is turned off is

need to skip locomotives from the mountain down.

If the handle is set to “aut, action. the shoe becomes automatic, depending on the time of pressing the wheel on the pedal, and if this Time was less than t, then the circuit is: latching) M 2, relay IV winding, clip 4, switch knob, clip 5, closing the relay //, contact 6 relays / and through clamp 5 back to the power source.

Relay V, a normally open contact // relay IV, repeats the operation of the latter, but its necessity is determined by the fact that relay IV has weak contacts, unable to disconnect the high current consumed by the working electromagnet, while relay V has powerful coal contacts.

On the other hand, the relay Y could not replace the relay IV, since it would not be excited by those short-term impulses of currents: with which the voltage is; . relay IV.

Relay V with its contacts 12 includes a working electromagnet iB power supply circuit 22, OU.

The following types of relays can be selected for the proposed device.

Relays /, //, III and IV, so-called coded relays (of the type KDR), used for automatic blocking. Of these, the // and IV relays are equipped with copper rings and release the measles with deceleration. In t and, respectively, T.

Relay V, the so-called traveling track with angle contacts (of the type NPR-2) on “apr 24V.

The proposed device can be used not only for the shoes, but also for the retarders, as well as in cases where the alarming rate of a certain speed must be fixed.

Subject invention

Claims (3)

1. A device for actuating any devices, in particular, brake shoes, etc. at sorting stations, when the rolling stock exceeds the set speed, characterized by the NTO power supply circuit of the executive relay IV through sequentially connected contacts, two parallel connected in series with the rail pedal relay / and / /, of which one relay /, 1 filled with fast speed, both for short circuit and for release, has normally closed contacts, and the second relay //, full slow release, has normally open contacts and is turned on through the normally closed contacts of an additional relay /// connected in the pedal circuit in parallel with the relay // through the normally open contacts of the latter, so that the operation of the executive relay IV can take place only at speeds at which the release time of the relay // is longer than the time spent on the ramp on the pedal. 2. The form of the device pop. 1, so that the relay /// is self-short-circuited, so that the relay // power supply circuit is open for the entire time the chute is on the pedal. 3. The form of the device according to and. 1 and 2, characterized in that executive relay IV serves to lengthen the current pulse and is used to turn on the operating relay V controlling the devices. 6 cl f aom ayil