DE441987C - Device for combating the lateral swinging out of monorail express train vehicles in tunnels - Google Patents

Description

Device to combat the lateral swinging of monorail express train vehicles in tunnels. If the vehicle is a Eins @ chienensichnellbahn, z. B. an overhead conveyor or a monorail track with gyro stabilization when driving through a tunnel caused any action to swing sideways, e.g. B. by laying the center of gravity when people or loads are moved inside the car, so becomes the air when the vehicle body approaches the tunnel wall on one side the approach point to a stronger flow opposite to the direction of travel causes and thereby generates a stronger negative pressure than at the other places of the tunnel cross-section.

It can now be the negative pressure due to the extraordinary speed of the vehicle are so considerable that the body of the vehicle through it is attracted more and more strongly at the point of approach against the tunnel wall, which in turn increases the negative pressure, and it can do so to that extent take place that the vehicle body impacts against the tunnel wall, whereby under certain circumstances a crash of the vehicle can be caused.

For example, it is shown in cross section in the one shown in Fig. I Tunnel i the vehicle of a monorail hanging valve from the one shown in full lines Equilibrium position a for swinging out to the side in the dashed lines line 3 shown is pivoted, so the air pressure is at the point of the lower Distance 4 is less than at the point of greater distance 5 of the vehicle from the tunnel wall. There is therefore the risk that at high speed the vehicle pivoted laterally into position 3 drawn with dashed lines by the current suction at 4 completely against the wall of the tunnel to swing out is brought.

If you wanted to try the side tunnel walls so far from the central position of the vehicle to remove that with the biggest swings of the vehicle 2 on the rail 6, the tunnel wall is not reached, as z. B. is indicated in Fig. 2, then this would not be the root of the evil can be eliminated, rather the vehicle 2 due to its inertia by the Swing the current suction beyond the equilibrium position and then swing back again and swinging back and forth through the tunnel.

In order to counter such lateral vibrations, according to the present Invention the effect of the suction, which the vehicle against the wall of the tunnel, used to drive the vehicle in its own to maintain mean equilibrium. To this end, according to the invention a different arrangement was made, = that the lower part of overhead conveyors, namely the bottom of the tunnel, and at. Monorail tracks. The upper part opposite the vehicle body, in its equilibrium position, expediently in a broad rib is approximated, which is passed along the whole tunnel. In this way, with the correct dimensioning of the continuous longitudinal rib a total moment from side flow suction, gravity (round, possibly gyroscopic force) and recirculation suction. generated, which tends to put the vehicle in the central position traced back.

In the drawing are several execution farms of such an arrangement illustrated in tunnels.

Figure 3 shows a cross section of the tunnel for a track of an overhead monorail, the clear space of the tunnel having a cross-section approximately in the shape of a heart can. As the drawing shows, the bottom part is below the vehicle of the tunnel in: the form of a wide rib 7 so increased that the Cberkante Rib of the floor of the vehicle running on the rail 6 in the middle position of the same is approximated to a small extent. Due to the rapid movement of the vehicle body z is now the strongest current suction precisely at that narrowest point 8 between the Vehicle 2 and the rib 7 caused and thereby the vehicle at any swing out forcibly brought back to the middle position.

Fig.q. shows the formation of the, cross-section, of a tunnel for two tracks. Here, too, is the increased one for each track below the vehicle Rib 7 is provided. It may be useful to divorce the two tracks in the middle of the tunnel, from below, a significantly higher rib g than the partition to arrange.

Fig. 5 shows a. Tunnels of rectangular cross-section with a level floor, in which also a rib-like elevation i o under the in middle equilibrium hanging vehicle body 2 is provided.

It goes without saying that the described and illustrated Setup can also be used for monorail railways Gyro stabilization.

Claims (3)

1-'A'1'LN7.'ANS1'RÜC11L :: i. Device to combat the lateral Swinging out of monorail express train vehicles in Tunne: n, characterized in, that between the vehicle and the tunnel wall there is a return suction at a suitable point is caused, which when the moving vehicle swings out this in seeks to trace back the central position. 2. Device to combat the lateral Swinging out of monorail sickle-rail vehicles in tunnels, characterized in that that in tunnels by appropriate position of the walls also with commuting cars a total moment of infrequent flow suction, return flow suction and gravity or Gravity and gyroscopic force is generated, which the vehicle in its central position zrückzuführeaf strives. 3. Device according to claim i and 2, characterized in that da.- the tunnel shaped in cross-section and the S.chienenweg üi such a location zuzn tunnel profile is brought that the distance between the underside of the vehicle and the tunnel floor in .the vertical center plane .of the vehicle, is smaller than anywhere else. q .. device according to claim i to 3, characterized in that that the approximation required to generate the current suction by an in the middle below the vehicle on the ground or above the vehicle, on the Ceiling of the tunnel -provided, continuous wide rib is achieved.