JPS6033922B2 - Rail bridging device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises two track girders, the track girders being connected to form a telescopic gap and provided with a running track for the support wheels and/or the internal rolls of the running gear. The expansion gap between them is bridged in the area of the running track for the supporting wheels or guide rolls by a triangular filler inserted into the running track, and the slopes of the filler correspond to the slopes formed in the running track. The present invention relates to a rail bridge system for suspended railways, such as those held in buildings, especially for use in transporting people.

The suspension type railway track is carried out as a so-called flat suspension. That is, each track girder has one end fixed at a fulcrum and the other end supported so as to be movable in the vertical direction. In order not to impede the free thermal expansion of the track rails, the track rails and the running and guide rails fixed to them are installed in such a way that expansion and contraction gaps remain. In order to bridge expansion and contraction gaps of this type as closely as possible, it is possible to bridge the running paths of the supporting wheels and guide rolls with triangular fillers without interfering with the free thermal expansion of the track girder. Already proposed. In this case, the triangular filler material is pushed out laterally against the spring force when the track mandrels are extended. The filling material is pushed back into place by the spring force when the temperature returns to normal and the orbital wires are pulled together. However, it has been found that this is not always done. In this case, the filler material is adjacent to the rail end on the one hand and can be thrown out during driving, which leads to a great accident risk. The object of the invention is to provide a rail bridging device which ensures that the filling material is drawn into the enlarged expansion gap even when the temperature decreases. This object is achieved according to the invention by providing a track bridging device of the type mentioned at the outset with guide means that form a positive connection between the triangular filler and the track rail, these guide means guiding the filler. This is achieved by allowing the slope to guide the plane. In this way, gap-free seams are obtained both with large expansion gaps and with fillers with long flat legs.

This is because longitudinal and transverse guiding forces act on the filler that are always greater than the frictional forces generated during temperature changes. This avoids automatic braking, which could occur under the action of spring forces alone. In an advantageous manner, the form-locking guide means are formed by bolts which are arranged directly or indirectly at the adjacent ends of the raceway and project into the guide grooves of the triangular filler provided parallel to the slope. ing.

It is desirable to provide a thread and a nut on the free end of the bolt. A disc spring is arranged between the nut and the filler for the movable retention and predetermined pressure of the filler at the end of the raceway girder. Preferably, the disc spring and nut are mounted submerged within the filler and are removably covered by a plate. This allows a noise-free passage of the connecting piece even if the filler is not precisely lined due to its large surface loading. The surfaces to be connected by the triangular filler do not always lie exactly in one plane due to manufacturing or assembly tolerances.

The filler must therefore line the sliding surface so that it is evenly loaded and does not make any noise during its passage. Backing at the installation site requires great precision and is therefore time consuming. Furthermore, it is difficult to secure the thin cover and board to the sliding surface.
In order to facilitate assembly and maintenance, the triangular filler is guided on both sloped sides of it in each case against an intermediate piece;
It is fitted together with an intermediate piece between the two bent ends of the track. This allows the mutually corresponding orthogonal sliding surfaces of the intermediate piece and the triangular filler to be oriented parallel to each other. This is because the triangular filler can be integrated with the intermediate piece as a component of variable length between the ends of the raceway. In this case, the height and angular tolerances can be made uniform over a larger length than before, and triangular fillers can be created by means of underlay plates between the stationary components, i.e. between the track girder and the intermediate piece. It is achieved that the horizontal sliding plane between the two intermediate pieces lies in one plane. Embodiments of the present invention will be described in detail below with reference to the drawings.

The drawings show three embodiments of the invention. In FIG. 1, the butting point of two box-shaped track girders of a suspended railway is shown in longitudinal section so that the running track can be seen. FIG. 2 is a cross-sectional view of the roller of the embodiment shown in FIG. Third
The figure is a top view of another rail bridging device. FIG. 4 is a sectional view taken along the line W-N of the embodiment shown in FIG. FIG. 5 shows an embodiment with a layered filler, and FIG. 6 shows a cross section transverse to the running axis of another layered filler. In Figure 1, the track of a suspended railway is formed by track girders 1 and 2 connected together, and each of the track girders has one end fixedly supported by a fulcrum, and the other end supported so as to be displaceable in the longitudinal direction. . In this case, the illustrated end of the track girder 1 is fixedly supported by a fulcrum, and the end of the track girder 2 is supported so as to be displaceable in the longitudinal direction. Furthermore, the raceways 1 and 2 are held at supporting points so that the expansion and contraction gap 3 remains. Symmetrical to the slots 4 in the bottom plates of the box-shaped track girders 1, 2 is a running track 5 for the wheels of the chassis. A triangular filler 6 is used to bridge the expansion gap 3 of the running path 5.
A slope 7 is arranged between the obliquely cut ends (slopes 9) of the running path. The triangular filler 6 is attached to the raceway beams 1 and 2.
It is located on the end of the track and bridges both track girders. The filler 6 is
It is connected to the ends of the track girders 1, 2 by form-locking guiding means which guide the filling material 6 parallel to the slopes 7, 9, respectively. This guide means consists of two bolts 10 provided at the adjacent ends of the raceway beams 1, 2, which bolts are inserted into guide grooves in the filling material 6 provided parallel to the slopes 7, 9 (sliding surfaces). It sticks out to 11. As can be seen from the cross section shown in FIG. 2, the bolt 10 is formed at its lower end as a cantilever 12a and is supported in a hole 13 in the bottom plate of each raceway by means of a threaded pin 12b. .

A thread 14 and a nut 15 are provided at the other end of the bolt 10 to keep the filler 6 movable. A disc spring 16 is arranged between the nut 15 and the filler 6. In order to make it possible to arrange the guide means without damaging the surface of the running track 5, the nut 15 and the disk spring 16 are sunk in a recess 17 in the filler and are covered in a rolling manner by a plate 18. There is.

The filler 6 slides on the underlay 19 during thermal expansion.

This underlay is made of, for example, synthetic resin and has good sliding properties. The slope 7 of the filling material 6 and the slope 9 of the running track 5 are sloped in order to obtain additional vertical guidance of the filling material 6. In order to keep the effects of play in the form-locking guide as small as possible, the filler 6 is additionally pressed against the ramp 9 by a spring 8. In the same way as the running track in the bottom plate, the guide rail in the side wall of the track rail can also be provided with a rail bridging device.

In the case of the rail bridging device shown in FIG. 3, a triangular filler 6 is guided on both sides of its slope (vertical sliding surface) 7 in contact with intermediate pieces 20, 21, respectively. The intermediate piece is arranged at the cutout in the end of the two track girders 1, 2 to be joined.

The triangular filler 6 is located on the depressed horizontal sliding surface 7a of the intermediate pieces 20, 21 (FIG. 4). Four bolts 10 are provided in the triangular filler 6 for guidance,
These bolts project into the guide grooves 111 of the intermediate pieces 20, 21. These guide grooves run parallel to the slope 7. A nut 15 is screwed onto the bolthole from below. The nut 15 connects the triangular filler 6 to the horizontal sliding surface of the filler 6 via a disc spring 16 so that the triangular filler 6 and the intermediate pieces 20, 21 form a component whose length can be changed. Press it onto 7a. Intermediate piece 20
, 21 are the consoles 22 at the ends of the tracks 1 and 2.
It is supported by and fixed with screws 23.

In order to facilitate the movement of the triangular filler 6 on the support surfaces of the intermediate pieces 20, 21 in the case of different heights and/or different inclinations of the raceways 1, 2, the triangular filler 6 is The base plate 24 is preferably arranged on the console 22 in such a way that the length-variable component consisting of the intermediate pieces 20, 21 lies in one plane and is not deformed when the screws 23 are tightened. The pressure of the wheels causes elastic deformation of the running track 5, and between adjacent track girders the triangular filler forms a transition between the loaded and unloaded running surfaces.

In this case, the triangular filling material must also be elastically deformed. In order to keep the forces required for deformation low, it is advisable to layer the triangular filler in the direction of the running axis (FIG. 5) and to connect the individual laminae 25 to one another, for example by means of an elastic intermediate layer. The elastic intermediate layer is preferably formed by a rubber or synthetic resin intermediate layer that partially or completely closes the gap between the thin plates 25. intermediate piece 20,
A frame 28 is used for guiding the triangular filler 6 at 21 or directly at the girder end. It is desirable to provide a triangular filler 6 having a triangular base on the slit 4 side. According to another embodiment, the upper surfaces of the thin layers 25 are connected to each other so that the running path 5 is kept flat.

According to FIG. 6, the layering is produced by cutting in from below the filler 6, or by placing a plate 29 on top of the thin plate 25, as shown in broken lines.
In the case of the incised embodiment, the elastic intermediate layer is formed by residual bridges 27 that connect the sheets 25 to one another.

[Brief explanation of the drawing]

Fig. 1 shows a longitudinal sectional view of the butting point of two box-shaped track girders of a suspended railway so that the running track can be seen, and Fig. 2 is a 0-Ro sectional view of the embodiment of Fig. 1. FIG. 3 shows another embodiment of the rail bridging device in a top view, FIG. 4 is a NN cross-sectional view of the embodiment of FIG. 3, and FIG. FIG. 6 shows a top view of the embodiment and FIG. 6 shows a side view of another layered filler embodiment. 1, 2... Track girder, 3... Expansion gap, 4... Slit, 5... Running path, 6...
Filler, 7, 9... slope. FIGI FIG2 FIG3 FIG,5 FIG6

Claims (1)

[Scope of Claims] 1. The track girders are joined together to form a telescoping gap and are provided with a running track for the supporting wheels and/or guide rolls of the running gear, and furthermore the telescoping spacing between the two track girders is connected to form a telescopic gap. For suspended railways bridged by triangular fillers fitted into the running track for the wheels or guide rolls, the slopes of the filler being held on the corresponding slopes formed in the running track In the track bridging device of A rail bridging device characterized in that it uses bolts accommodated in guide grooves of a filler. 2. For the movable retention of the filler at the ends of the two raceway beams, the free end of the bolt is provided with a thread and a nut, and a disc spring is provided between the nut and the filler. A rail bridging device according to claim 1. 3. The triangular filler is guided in contact with one intermediate piece on each of its slope sides, and is fitted together with the intermediate piece between the two track girder ends. The rail bridging device according to item 1 or 2. 4. The rail bridging device according to claim 3, wherein the triangular filler is layered in the direction of the running axis. 5. Rail bridging device according to claim 4, characterized in that the individual laminates are elastically connected to each other. 6. A patent claim characterized in that the track girder is a box-shaped track girder with running paths arranged on both sides of the slit, and a triangular filler having a triangular base is arranged on the slit side. The rail bridging device according to any one of items 1 to 5.