DE703608C

DE703608C - Rail contact device with contact-making flanges

Info

Publication number: DE703608C
Application number: DE1936V0033009
Authority: DE
Inventors: Hermann Rummel
Original assignee: Vereinigte Eisenbahn Signalwerke GmbH
Current assignee: Vereinigte Eisenbahn Signalwerke GmbH
Priority date: 1936-07-30
Filing date: 1936-07-30
Publication date: 1941-03-12

Description

Schienenkontakte, bestehend aus einem Druckraum, der mit mehreren mit einer Flüssigkeit gefüllten Röhren in Verbindung steht, bei denen durch Verringerung des Rauminhalts des Druckraums ein Anstieg der Flüssigkeitssäule und damit verbunden eine Kontaktgabe stattfindet, sind bekannt. Bekannt ist ferner, daß man den Druokraum als flachen Hohlkörper ausbildet und ihn am Schienenfuß so befestigt, daß durch den Raddruck eines über die Schiene rollenden Fahrzeugs und der damit verbundenen Durchbiegung der Schiene die gewünschte Raurainhaltsverminderung im Druckraum eintritt.Rail contacts, consisting of a pressure chamber that is connected to several tubes filled with a liquid, in which by reducing the volume of the pressure chamber an increase in the column of liquid and a contact is made associated therewith are known. It is also known that the Druokraum as flat Hollow body forms and it attached to the rail foot so that by the wheel pressure a vehicle rolling over the rail and the associated deflection of the The desired reduction in the volume of space in the pressure chamber occurs.

Da die Dauer der Verringerung des Rauminhalts, die für die Kontaktgabe wirksam ist, von der Dauer der Belastung der Schiene abhängig und bei schnell fahrenden Zügen naturgemäß sehr kurz ist, kann die Flüssigkeit in den Röhren infolge ihrer Massenträgheit nicht in dem Maße folgen, daß ein ausreichender Kontaktschluß gewährleistet ist.Since the duration of the reduction in volume that is effective for making contact, depends on the duration of the load on the rail and naturally in the case of fast-moving trains is very short, the liquid in the tubes cannot, due to its inertia, follow to the extent that a sufficient Contact closure is guaranteed.

Bekannt ist ferner bei Verminderung eines Druckraumes durch einen Achsdruck einen Luftausgleich für die Wirkung als Unterdruckkontakt vorzusehen.It is also known to reduce a pressure chamber by an axial pressure Provide air compensation for the effect as a negative pressure contact.

Die Erfindung betrifft eine Schienenkontakteinrichtung mit kontaktgebender Flüssigkeitssäule für Eisenbahnsicherangseinrichtungen, bei der ein Luftausgleich für die Wirkung als Unterdruckkontakt vorgesehen ist. Die Erfindung besteht darin, daß sich der beim Verringern des Druckraumes entstehende Überdruck zusätzlich durch ein Rückschlagventil zur Außenluft hin ausgleicht, so daß dann der beim Aufhören des Achsdruckes entstehende Unterdruck die kontaktgebende Flüssigkeitssäule bewegt.The invention relates to a rail contact device with contacting liquid column for railway safety devices, in which an air balance is provided for the effect as a negative pressure contact. The invention consists in the fact that the overpressure produced when the pressure chamber is reduced additionally compensates for the outside air through a check valve, so that then the when the axle pressure ceases, the negative pressure creates the contact-making liquid column emotional.

Der Erfindungsgegenstand ist in der Abbildung beispielsweise näher erläutert.The subject matter of the invention is explained in more detail in the figure, for example.

Der in der Zeichnung dargestellte Kontakt besteht aus zwei hauptsächlichen Teilen: dem Druckkörper 1 und dem Kontakteinsatz 2. Der Kontakteinsatz 2 ist beispielsweise so ausgebildet, daß in ihm zwei Bohrungen 5 und 6, die untereinander durch eine Ouerbohrung j Verbindung haben, bis zu einer bestimmten Höhe mit einer Flüssigkeit, ζ. Β. Quecksilber 8, gefüllt sind. Nach dem Gesetz der kommunizierenden Röhren befinden sich die Ouecksilberoberflächen in den beiden Bohrungen 5 und 6 in gleicher Höhe, da beide Quecksilbersäulen unter der Einwirkung des jeweiligen Luftdruckes stehen, und zwar durch eine Bohrung 9 im Verschlußdeckel 10 bzw. durch eine Scheibe 11, die wenig luft-The contact shown in the drawing consists of two main parts: the pressure body 1 and the contact insert 2. The contact insert 2 is designed, for example, so that in it two bores 5 and 6, which are connected to one another by an Ouerbbohrung j connection up to a certain Height with a liquid, ζ. Β. Mercury 8, are filled. According to the law of communicating tubes, the mercury surfaces in the two bores 5 and 6 are at the same height, since both mercury columns are under the action of the respective air pressure, through a bore 9 in the cap 10 or through a disc 11, which is little air-

*) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor:

Hermann Rummel in Berlin-Sclimargendorf.Hermann Rummel in Berlin-Sclimargendorf.

Claims

is permeable and is located as a seal between the cover ro and the pressure body ι. When driving on the rail, the pressure body ι is compressed; i.e. the space-S content of the pressure chamber 3 is reduced. The means contained therein, e.g. B. air, is accordingly your degree of compression is displaced and can be controlled by the valve 4, which is designed as a check valve for

'■> The outside air can escape. After driving on the rail, the pressure body 1 goes into its original position back, there is an .Content enlargement of the pressure chamber 3, and since the valve 4

■ 5 blown air cannot be replaced again, a negative pressure arises in the pressure chamber 3, which is transferred to the bore 5 in the insert body 2 . The negative pressure causes the mercury column to rise in bore 5 and to sink in bore 6.

The increase in the mercury in the bore 5 makes contact with the Contact pin 12 and thus the contact closure

^ r ₁ brought about between pins 12 and 13. At the same time, a current interruption between the pins 13 and 14 can be brought about.

To also the further compressions of the pressure hull 1 for a further rise To make the mercury column 15 usable, is at the bottom of the hole 5 a Constriction 16 is provided, which acts as a throttle and can also be replaced by a valve can. They prevent the mercury from flowing back quickly, see above so that the renewed brief compression of the pressure body 1 a further escape caused by air through valve 4.

The state of rest occurs when air passes through the panes

penetrates and so

<read mercury slowly back into equilibrium.

As already indicated above, this rail contact can cause power interruptions or electrical connections or both are brought about at the same time.

An adjustable throttle can also be used instead of the air-permeable panes be provided, through which the contact closure or the contact interruption as desired is delayed.

The control of the contacts by means of a negative pressure is applicable not only in cases where the contact is actuated by the action of a train, but also in other cases, e.g. B. with motor switches, where the exposure time is often too short to ensure sufficient contact actuation, or if deliberately a delayed ^{6 |} > Contact closure or contact opening is to be effected.

Pa τ ε ν τ λ ν S ρ κ ü c i-i ε:

ι. Rail contact device with contact-making Liquid column for railway safety devices, with which an air balance for the effect as a negative pressure contact is provided, characterized in that when the pressure chamber (3, 5) is reduced, the Overpressure is also compensated for by a check valve (4) to the outside air, so that the negative pressure that occurs when the axle pressure ceases to affect the contact-making liquid column emotional.

2. rail contact device according to claim i, characterized in that at the increase in pressure in the pressure chamber, the movement of mercury through a throttle device (16) is delayed.

1 sheet of drawings