DE669323C - Autonomous route block - Google Patents

Description

In the case of an automatic route block, isolated route sections are mostly used, which are fed with alternating current at the end and at the beginning of which a relay, the so-called block relay, is connected, the has attracted its anchor when the stretch is clear, but on the other hand when the stretch is occupied Short circuit of the rails drops its anchor. The block relay switches with its When the contacts are engaged, the signals are moving, but when they are released, they are stopped. Circuits are known in which the block relay contacts also switch all required dependencies (subsequent dependency).

In known circuits, electromagnetic relays or so-called relays were used as block relays Motor relay used. The 'electromagnetic relays were fed directly from the track. When using Motor relays were preferred to multi-phase relays, with the main phase connected to the isolated Track and which may be reinforced to dampen the anchor in the event of a short circuit Auxiliary phase has been connected to the signal feed line. Here, however, was the Servomotor controlled by the block relay for the signal or the travel lock for economical Power transmission consistently switched to the network with all phases, it being based on a special proposal has already become known, through a reactance at the end of the track section to influence a phase of this motor in the event of a short circuit in the rail in such a way that the motor runs on hold. With this arrangement, the conditions of the isolated track play depending on the Season and condition play such a big role that perfect work is hardly possible is guaranteed. Naturally, this also applies if the block relay is used directly the signal motor is set. Such a circuit is of no practical importance achieved. In addition, it has been suggested by the movement of the motor relay armature to indirectly bring about the signal image change with the aid of a movable screen. The electromechanical travel lock, which runs in parallel, is supported by additional Motor relay contacts controlled.

In an effort to simplify such circuits, it is proposed according to the invention, in the case of automatic section block systems with light signals and travel barriers or with leaf signals, the block relay completely omit and train the travel lock or signal motor as a multi-phase motor, so that its main phase from the signal feed line, its auxiliary phase from the isolated track can be excited.

The block relay and, as a result, its control contacts are thus spared; nevertheless, an economical power transfer is achieved because the auxiliary phase, the is fed from the track, has only a very ideal power to transmit.

An exemplary embodiment is shown in the accompanying illustration. Transformer 1

that the rails /! and I _{2 of} the isolated block section fed. At the beginning of the section, the auxiliary phase 4 of the travel lock or signal motor 3 is on the secondary winding of a track transformer 2 connected to the insulated track , which is also connected to the secondary winding of transformer 2,

to is switched off as long as the drive has not yet reached its travel position.

The main phase 5 of the motor 3 is directly connected to the signal feed line 12. A Resistance π is provided in order to keep the drive in the supply line Main phase to be switched on and thereby reduce the heating of the motor.

The switching of the signal lamps and the dependencies is done in a known manner and is operated here by the travel lock or signal motor itself.

The mode of operation during a train journey is as follows:

Before the train short-circuits the insulated rails Z ₁ and i ₂ , the signal is on. The holding magnet 9 is attracted. • The auxiliary phase is switched off by the drive contact 7, the main phase by the contact ι ο.

By short-circuiting the rails, the holding magnet 9 is de-energized; the signal falls to stop. Once the drive has reached its stop position, contacts 6, 7 and 8 change their position. The holding magnet 9 is then switched off due to the interruption of the contact 6. The auxiliary phase 4 is switched on because of the closed contact 7. The main phase is now connected via the resistor 11 to the feed line, as con- • _c TSKT interrupted 8 and contact 10 closed-* Se) i have '. The drive is in the stop position, so that when the block section becomes free, ie when the auxiliary phase is excited, the motor revolves into the driving position. The contact 8 is designed in such a way that it closes immediately after the motor has started and thereby then switches the main phase directly to the mains.

Claims (3)

Patent claims: 1. Automatic route block with light signals and travel locks or with wing signals, with a multi-phase, z. B. a two-phase motor is used, characterized in that the main phase (5) via the signal feed line (12), the auxiliary phase (4) on the other hand via the isolated track (Z ₁ , 4) are excited, while the signal lamps for light signals and the dependencies be controlled by special motor contacts for light signals or wing signals. 2. route block according to claim 1, characterized characterized in that the auxiliary phase (4) is switched off after the driving position has been reached and the holding magnet (9) is switched on in its place. 3. Route block according to claim ι and 2, characterized in that in the supply line a series resistor (11) can be connected to the main phase. 1 sheet of drawings