SU43034A1 - Device for automatically stopping a train from the track - Google Patents

Description

The proposed device is intended to automatically stop the train in cases threatening traffic safety. On this basis, two dependencies are established for the operation of the device, the first of them (on the way) is a closed semaphore and.1 and another input or pass signal, the second (at the station) is an arrow turned to a busy path. In both cases, braking is performed without any consequence of the train driver. The device can operate on any train that has automatic brakes. The device consists of the actual stop-screen with an automatic machine and the so-called internal circuit, mounted on the engine, and the external circuit with contact rails mounted on the track. The whole system is driven by a weak current.

In FIG. 1 and 2 show the device in section in two projections; FIG. 3-scheme depending on the closed signal; FIG. 4 is the same from the arrow, translated to a busy path.

The device itself is an automatically opening shut-off valve of an ordinary stop-crane and consists of a cylinder /, the diameter of which is equal to the diameter of the pipe of the stop-crane; in the cylinder, the valve 3 moves vertically, closing the outlet port 72. On the valve, in the lower part, for greater tightness has (3) 5)

with leather cuff 2. At its lower part, the cylinder is connected to the freeze tube. The spool has a stem 4, which in its upper part has a toothed rack 7. To press the device, as well as to reduce the air pressure, a pressure spring 5 is put on the brush, which is adjusted by the lock pin b and nut / 5. With its upper part, the rod engages with a small diameter toothed wheel, fixedly mounted on the axle of the large toothed tooth 6. The toothed wheel 6 in turn engages with the small toothed wheel of the ratchet wheel 9. The whole system of gear wheels serves to reduce the pressure from the spool 3 on the pawl / (holding the spool is in the lower closed position. The Yu dog releases the ratchet wheel by means of an electromagnet / 7, which is connected to the circuit from the current source installed on the train.

The external circuit in the diagrams, shown in the accompanying drawing, consists of aa contact rails stacked inside the track at a certain distance from the place of the required stop.

Considering the scheme of dependence on a closed signal, we see the following. Each of the contact rails is connected by a separate wire with a switch mounted directly on the signal. When the signal is closed, the switch closes the external circuit at point 5. According to the diagram of the second dependence

From a busy track, the contact rails are connected: right-to the right threads of the first and second tracks and left-to the left threads of the first and second tracks. Rail lines at points C must be isolated from the rest of the way. The wires connecting the left contact to the left thread of the first path and the right contact to the right thread of the second path at points d, have switches. In the diagram (Fig. 4), the arrow is shown translated into the second occupied path, the wire connecting the right contact to the right thread of the second path at point d is turned on, and thus the continuity of the wire is created. The complete closure of the circuit produces a compound that is in the way. The installation location of dial switches is best determined by practical observation. The length of the contact rails depends on the maximum speed of the train at the place of their laying.

The internal circuit consists of a battery power source or battery mounted on a locomotive, the poles of which through an electromagnet are connected to spring-loaded sliding contacts fixed inside the engine frame, which come into contact with them when passing over the contact rails.

When the train approaches the prohibitory point by means of the contact rails and the contacts of the engine, the circuit is completely closed. The electromagnet 77, attractive, lifts the dog 10, which releases the ratchet wheel P. The air that was pressing down on the slide and trying to lift it was held by the ratchet. After the last release

air raises the spool, not encounter obstacles. The spool opens the exhaust port 72 where air from the brake system is released. Braking occurs according to the principle similar to braking with a stop crane. When the braking is complete, close the stop valve, which is below the cylinder. The spring 5 is compressed during deceleration, the resistance does not meet, the air blown, the spool aeT to its initial position, the plant itself is the mechanism. When the slide has been brought to the lower position and the lock clamp b is resting against the nut 75, the shut-off valve is opened and the device is again ready for action.

Since the auxiliary parts, such as: switches on the signal, switch switches and locomotive contacts, do not represent the design features and capabilities, these figures are not shown in the drawing. For a more perfect action of the automaton on the locomotive, an additional mechanism can be installed that automatically closes the steam before braking begins.

The subject matter of the invention.

A device for automatically stopping a train from the track using a spring-loaded shut-off valve in the brake pipe held by a seal released by an electromagnet, characterized in that, to facilitate the operation of an electromagnet in releasing the latch-pawl, the latter does not abut directly the clamps 4 of the valve 3, but the ratchet teeth 9, an articulated gear with the rail 7. connected to the stem 4 valves.

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