DE207822C

DE207822C -

Info

Publication number: DE207822C
Application number: DENDAT207822D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

!PATENTSCHRIFT! PATENT LETTERING

-' M 207822 KLASSE 20«. GRUPPE- ' M 207822 CLASS 20 «. GROUP

SCHEIDT & BACHMANN in M.-GLADBACH.SCHEIDT & BACHMANN in M.-GLADBACH.

Sicherheitsschaltung für elektrisch gesteuerte Druckluftstellwerke.Safety circuit for electrically controlled compressed air interlockings.

Patentiert im Deutschen Reiche vom 18. März 1908 ab. Patented in the German Empire on March 18, 1908.

Die Erfindung betrifft ein Druckluftstellwerk mit elektrischer Steuerung und Rückmeldung, wobei zum Anzeigen von Unregelmäßigkeiten an der Weiche, z. B. Aufschneiden, Druckluft benutzt wird.The invention relates to a compressed air signal box with electrical control and feedback, wherein to display irregularities on the switch, z. B. Cutting open, compressed air is used.

Um nun zu verhüten, daß durch die Berührung einer vom Stellwerk zum Antrieb führenden Leitung mit einer anderen stromführenden Leitung das Stellwerk oder der Antrieb in gefahrbringender Weise beeinflußt wird, sind in die der Rückmeldung dienende Leitung am Antrieb Kontakte eingeschaltet, die in an sich bekannter Art durch Druckluft oder durch Elektromagnete bedient werden, derart, daß der Rückmeldestrom nur dann zustande kommt, wenn die Lage des Stellhebels mit der der Weiche übereinstimmt. Auf der Zeichnung ist die Erfindung dargestellt, und zwar zeigenIn order to prevent that from touching one of the signal box to the drive leading line with another live line the interlocking or the drive is influenced in a dangerous manner, contacts are switched on in the line used for feedback on the drive, which are operated in a known manner by compressed air or by electromagnets, such that the feedback stream only comes about when the location of the Adjusting lever corresponds to that of the switch. The invention is shown in the drawing, namely show

Fig. ι die Gesamtanordnung einer Weichenstellvorrichturig, Fig. Ι the overall arrangement of a switch setting device,

Fig. 2 und 3 besondere Ausführungsformen der Kontakteinrichtung am Weichenantrieb.
Das für die Rückmeldung beider Endstellungen der Weiche vorgesehene Ventil E im Stellwerk ist durch eine besondere, über Kontakte w¹, w² am Antrieb geführte Leitung 4 am Ende gelegt. Diese Leitung kann mit der Erde nur dann verbunden werden, wenn die am Antrieb angeordnete und durch das Druckmittel oder durch Elektromagnete bewegte Kontakteinrichtung die der Stellnng des Hebels im Stellwerk entsprechende Lage eingenommen hat.2 and 3 particular embodiments of the contact device on the switch drive.
The valve E in the signal box, which is provided for the feedback of both end positions of the switch, is placed at the end by means of a special line 4 which is routed via contacts w ¹ , w ² on the drive. This line can only be connected to the earth if the contact device arranged on the drive and moved by the pressure medium or by electromagnets has assumed the position corresponding to the position of the lever in the signal box.

Der Festhaltekolben k°, dessen Zylinder mit dem Antriebzylinder N starr verbunden ist, hat den Zweck, den Rahmen R beim Aufschneiden der Weiche und den Antriebkolben in seinen beiden Endlagen festzuhalten. Dies geschieht dadurch, daß der Kolben k°, der stets unter Druck steht, die auf dem Zylinder N drehbar gelagerte Achse A durch einen mit dieser Achse fest verbundenen Hebel derart verdreht, daß diese Achse mit den an ihren Enden befestigten Hebeln die in den Zylindern i¹, i² befindlichen Stifte in keilförmige Nuten im Antriebkolben einpreßt. Diese Stifte, die ebenfalls keilförmig abgeschrägt sind und in der Ruhelage in die im Antriebkolben eingedrehten Nuten eingreifen, halten die Weichenzungen in den beiden Endlagen fest. Beim Aufschneiden werden die Stifte entgegen der Wirkung des Luftkolbens k° zurückgedrängt.The retaining piston k °, the cylinder of which is rigidly connected to the drive cylinder N , has the purpose of retaining the frame R when the switch is cut open and the drive piston in its two end positions. This is done in that the piston k °, which is always under pressure, rotates the axis A rotatably mounted on the cylinder N by a lever firmly connected to this axis in such a way that this axis with the levers attached at its ends are in the cylinders i ¹ , i ² located pins pressed into wedge-shaped grooves in the drive piston. These pins, which are also beveled in the shape of a wedge and in the rest position, engage in the grooves screwed into the drive piston, hold the switch tongues in the two end positions. When cutting open the pins are pushed back against the action of the air piston k °.

Der Überwachungsrahmen R ist in einer auf dem Antriebzylinder N befestigten Gradführung derart gelagert, daß er in zwei zueinander senkrecht stehenden Richtungen vorgeschoben werden kann. Die eine Bewegung, die durch das Zungenkontrollgestänge ausgeführt wird, erfolgt parallel, und die andere, die der Festhaltekolben k° im Verein mit den Kolben i¹, i² ausführt, erfolgt senkrecht zur Zylinderachse. Beim gewöhnlichen Umstellen wird der Kolben i¹ oder i² unter Überwindung des in entgegengesetztem Sinne wirkenden Kolbens A⁰ hochgedrückt und dadurch der Rahmen R senkrecht zur Zylinderachse bewegt, damit der Aufschneideschieber D keine Bewegung ausführt.The monitoring frame R is mounted in a straight guide attached to the drive cylinder N in such a way that it can be advanced in two mutually perpendicular directions. One movement, which is carried out by the tongue control linkage, takes place in parallel, and the other, which the retaining piston k ° carries out in conjunction with the pistons i ¹ , i ² , is perpendicular to the cylinder axis. In the usual changeover, the piston i ¹ or i ^{2 is} ^{pushed up overcoming the piston A 0, which} acts in the opposite direction, and the frame R is thereby moved perpendicular to the cylinder axis so that the slicing slide D does not move.

Claims

When the switch is cut open, the pistons i ¹ , i ² , because they are connected to the outside air, do not operate; only the frame R is moved parallel to the cylinder axis. In this case, the slicing slide D is moved back through the surfaces a or c, thereby establishing a connection between the pipes r ° and m . The slide D is when the

ίο The switch is brought back from the frame R by the hook I to its original position.

The processes involved in properly changing the turnout are as follows:

The lever H (FIG. 1) is moved in the direction of the arrow until it strikes the roller of the piston k ^1. The electric current: battery B, line 1, contact t, line 3, valve E ¹ , earth, opens valve E ¹ . Compressed air from the feed line r passes under the valve F ¹ and also opens it. Compressed air then flows into the drive cylinder N and into the retaining cylinder i ¹ . The piston in cylinder i ¹ is pushed up so that

moved by the monitoring frame R towards the center of the drive cylinder and the contact w ' ¹ rotated in the direction towards the rail O. The piston in the drive cylinder moves to the other side and adjusts the switch. When changing the switch, the monitoring frame R and the rail O are brought into the other end position by the switch linkage.

If the switch is completely changed, the contacts y and w ^{1 are} closed and the feedback current flows: battery B, line 1, contact t, line 3, contact Y, line 6, contact v, line 7, valve E, line 4, rail O, contact w ¹ , earth.

The valve E is opened and the control lever is brought into the end position by compressed air from the pipe r through the piston k ¹ and the slot I ^1. In . In this position, the contacts t and υ on the control lever are interrupted, valve E ¹ comes to rest, and the drive cylinder is connected to the outside air ^{through valve F 1.} After contact w ¹ on the drive is interrupted, the overall situation is at rest again.

The same processes are repeated when the switch is reset. Only instead of lines 3, 6 are lines 2, 5 instead of contacts t, v, w ¹ , y, contacts s, u, w ² ,% and instead of valves E ¹ , F ^1, valves E ² , F ² in action.

When the switch is cut open in the position shown, the monitoring frame R is moved to the right and the cutting slide D is moved back by means of the inclined surface α . In this position, the slide D remains and connects the pipe r ° with the pipe m, which leads the compressed air to the signal box under the valve F and opens it. Compressed air from the pipe r flows under the piston k ² , which by means of the inclined surface s ² brings the control lever into the middle position and holds it there.

If the drive is to be brought into its proper state, after the air under the piston A ^{2 has} been released by turning the three-way valve h , the lever H is moved back until the roller of the piston k ¹ hits a boundary surface of the slide I ¹ , I ² , I ³ hits. The valve E ¹ or E ^{2 is then} opened, the slicing slide D is brought into its basic position by the hook Z, the switch is brought into its corresponding end position and the lever H is also brought into its end position by the feedback, '"80

The contact device shown in Fig. 2 consists of two bolts on the d ^1, d ² rotatably mounted contact bodies e ^1, e ^2. The bodies each have three parts, one part of which is conductively connected to the earth and the other is isolated from the earth by an intermediate piece. When changing the switch, the contact rail P connected to the feedback frame R is moved in the direction of the arrow before the movement begins. Since the insulated piece of the contact pendulum e ¹ comes into contact with the contact piece p ^{1 of} the contact rail, the line 4 is not connected to earth. On the other hand, this occurs towards the end of the switch changeover, when the pendulum e ² touches the contact piece p ^%.

By virtue of this arrangement (Fig. 2), even in the event of line faults, there is only a response if the position of the drive corresponds to that of the lever.

In the arrangement shown in Fig. 3, the security for the proper feedback is achieved in that the line 4 is connected to earth via the contacts z ¹ and z ^2. These contacts are operated by magnets M ¹ , M ² connected in parallel or in series ^{with valves E 1} , E ² and connected to earth by contact pieces O ¹ , O ² on rail O.

Ρλ τ ε ν τ - A ν s ρ R ü c η ε:

i. Safety circuit for electrically controlled compressed air interlockings, whereby in the Rest position of the drive by the end movement of the adjusting lever brought about by the feedback electrical currents are interrupted, characterized in that in the lines for the feedback device on the drive of compressed air or electric

gneten operated contacts are switched on in a known manner and interact in such a way with a contact rail (0, -P) moved by the tongue control linkage that the feedback current can only occur even in the event of a line fault when the switch has reached the end position corresponding to the position of the control lever.

2. A circuit according to claim ι, characterized by a pendulum (e ¹ , e ² ), which consists of two parts isolated from one another and is arranged such that a current is closed only in one direction when the contact bar (f) is moved.

3. A circuit according to claim i, characterized by contacts (w ¹ , W ² J, which are prepared by the pressure medium according to the position of the control lever for the current circuit.

4. A circuit according to claim 1, characterized in that the contacts by electromagnets (M ¹ , M ² J, which are connected in parallel or in series with the control valves (E ¹ , E ² ) , are prepared according to the position of the control lever for the current circuit .

1 sheet of drawings.