SK60196A3 - Device for mounting of railway carriage construction on its undercarriage - Google Patents

Abstract

Device for supporting the body of a railway vehicle on its underframe with a help of rollers, placed between the construction and underframe, and with lengthwise direction acting damper of shocks acting dampingly on the railway vehicle. In the space of supporting surfaces (12) of the underframe (2) there are placed the blocks (5) of rolls with a number of rollers (6) and in each block (5) of rolls there are placed four rolls (6) optimising loading.

Description

Device for placing the wagon structure on its bogie

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a device for supporting a wagon structure on its bogie with rollers positioned between the structure and the bogie and with a long-stroke shock absorber acting on the wagon.

BACKGROUND OF THE INVENTION

Railway wagons, particularly freight wagons, are subject to severe impacts during shunting. In freight wagons without shock absorbing equipment, a small amount of impact energy is absorbed by the buffers. The acceleration values of the car are up to 5 g. The use of lateral bumpers with increased energy absorption and an extended damping path results in only a small reduction in displacement acceleration, to about 2 g.

To protect the load against impact damage, long-stroke shock absorbers with sliding frames are installed between the structure and chassis. Furthermore, wagons with buffer beams are known. In this case, the beam running under the railway carriage is connected to the rest of the carriage by means of a shock absorber. This shock absorber takes part of the impact energy. At the end of the impact, the buffer beam assumes its central position again. The bumper beam is an additional element on the vehicle and leads to an increase in the weight of the structure.

The sliding frame design waives the impact beam. In the event of an impact, the bogie under the sliding frame may be displaced by a limited section to reduce the impact acceleration. The shock absorber receives the impact energy and returns the slide frame back to the center position after the impact has subsided.

For this purpose, the slide frame is supported on the chassis by a slide and / or roller. Known are roller bearings on a number of large, heavy, rigid rollers mounted on the chassis. Furthermore, rotary rollers are known which are guided in so-called roller cabinets. Slide plates are also known for the sliding bearing of the slide frame on the chassis. The disadvantages of the prior art solutions lie in the bulky, heavy-duty designs and in the sliding pads with too high friction values to enable the trouble-free operation of the long-stroke shock absorber.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a space-saving and weight-saving mounting of the structure on the bogie which ensures a reliable long-stroke shock absorber function.

SUMMARY OF THE INVENTION

According to the invention, this object is achieved by providing roller blocks with multiple rollers in the region of the bogie contact surfaces.

An advantage of the device according to the invention is that the sliding frame and / or the bumper beam are eliminated, and considerable weight savings are achieved. The advantage of equipping roller cabinets with several relatively smaller rollers is that the mounting height of the bearing can be reduced. The rail car equipped according to the invention is easier to manufacture, with the remaining residual accelerations in the range of 0.5 to 1 g. In addition to saving loaded goods, it is also possible to use simpler freezer aggregates, which are common, for example, for lorries. This can compensate for the increased installation costs of the long-stroke shock absorber so that the inventive rail car is not significantly more expensive than a conventional, non-damped vehicle.

Further details of the invention are set forth in the following detailed description and in the accompanying drawings, in which one embodiment of the invention is shown by way of example.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings show:

Fig. 1: A schematic side view of a railway carriage;

Fig. 2: A detailed section along line I-I in FIG. 1;

Fig. 3: A schematic representation of a roller housing in a side view;

Fig. 4: A section along line II-II in FIG. 1 a

Fig. 5: Top view of a long stroke damper located between the chassis and the structure.

DETAILED DESCRIPTION OF THE INVENTION

In the case of a damping railway carriage with a structure 1 and its associated bogie 2, which are connected to one another by a long-stroke shock absorber 2, the invention consists essentially of roller blocks 5 which are disposed in cantilevered rectangular holes 2 on the bogie and each having a plurality of rollers 6 The number of roller blocks 5 and the number and spacing of the rollers 6 located in each roller block 5 is selected for optimum loading in the sense that it is positioned on the rail car with the expected relatively higher load along the whole vehicle. higher number of roller blocks 5 and roller 6 than on vehicles with an expected lower load during transport.

The roller blocks 5 preferably have four rollers 6, which are also preferably located in pairs side by side or in succession.

In the roller blocks 5, the rollers 6 are rotatably mounted in fixed positions. The roller blocks 5 are located in the region of the contact surfaces 12 of the chassis 2 in rectangular holes 7 which form the contact surfaces 12. Elastic pads 8 are placed in the rectangular openings 7 on which the roller blocks 5 are elastically supported to compensate for the rollers. 6 in the event of an impact load. This elastic pad 8 may consist, for example, of a rubber plate.

The rails 4 for the roller blocks 5 consist of a hardened flat material which is located at the bottom of the superstructure 1 in the region of the roller block 5. The cylinder blocks are removably mounted in rectangular apertures 7. Optionally, one or more rectangular apertures 7 on the chassis may be fitted with adapters adapted to each having a sliding plate 11 on which the associated counter-path 4 is mounted.

The railway carriage is provided, at least in the region of its four corners 13, with a lifting fuse 14, which in each case consists of one buckle 9 mounted on a bogie 2 below the guide rail 10 which extends over it and into which recesses 15 buckle 9 projects. In the event of a displacement impact, the structure 1 is prevented from being lifted from the chassis 2. For normal operation, the clip 9 and the guide rail 10 are contactlessly designed in such a way as to prevent the structure 1 from being lifted. The buckle 9 is preferably detachably mounted on the bogie 2. Thus, in the case of supposed replacement of one or more roller blocks 5 with an adapter with sliding plates 11, the bogie 1 can be lifted from the bogie 2 effortlessly and allows the necessary equipment 5 roller blocks and / or sliding plates 11.

Of course, the kinematic reversal of the device according to the invention is also possible in such a way that the roller blocks are mounted on the structure 1 and the rails are located on the chassis 2, preferably in the region of their longitudinal beams. Likewise, the lifting fuse 14 may be constructed in such a way that a buckle is provided on the structure 1, the guide rail being located on the pedestal 2. The bogie 2 may be provided with a bending-resistant backing plate to provide space for the structure 1 to move relative to the bogie. however, there is also a further reinforcement by supporting the backing plate towards the center, when the backing plate made of a bend-resistant material is no longer required.

The structure 1 can also be designed as a torsion-resistant housing, e.g. as in the isothermal construction. In such a case, the structure 1 may assume a portion of the required twisting resistance to secure the railcar against derailment. This is particularly required for biaxial freight wagons. If the bogie 2 is made with a lower torsional stiffness, it can save weight, thus allowing a higher load on the wagon.

Claims (12)

PATENT CLAIMS Device for placing a wagon structure on its bogie with rollers located between the structure and the bogie and with a long-stroke shock absorber acting on the railway wagon, characterized in that blocks (5) are disposed in the area of the contact surfaces (12) of the bogie (2) rollers with multiple rollers (6). Device according to claim 1, characterized in that four load-optimizing rollers (6) are arranged in each roller block (5). Device according to claims 1 and 2, characterized in that the rollers (6) are arranged in pairs next to each other and one after the other in the roller block (5). Apparatus according to claims 1 to 3, characterized in that the roller blocks (5) are designed as cabinets in which the rollers (6) are rotatably mounted in fixed positions. Device according to one of Claims 1 to 4, characterized in that the roller blocks (5) are guided in the area of the rectangular holes (7) on the chassis (2) which form the contact surfaces (12). Apparatus according to claims 1 to 5, characterized in that the rectangular openings (7) are designed as brackets with elastic washers (8) on which the roller blocks (5) are resiliently supported. Apparatus according to claims 1 to 6, characterized in that the structure (1) is provided with counter-tracks (4) in the region of the roller blocks (5), which are made of hardened flat material. Device according to claims 1 to 7, characterized in that the roller blocks (5) are removably inserted into rectangular holes (7). Apparatus according to claims 1 to 8, characterized in that adapted adapters are provided in one or more rectangular openings (7) of the chassis (2), each having a sliding plate (11) on which its respective counter-track ( 4). Device according to one of Claims 1 to 8, characterized in that the structure (1) is provided with at least four corners (13) with lifting fuses (14), each consisting of one clip (9) mounted on the chassis (2) underneath a guide rail (10) extending beyond it and into which recesses (15) the clip (9) projects. Device according to one of claims 1 to 10, characterized in that the clip (9) is fastened to the chassis (2) in such a way that it can be released. Device according to one of Claims 1 to 10, characterized in that the clip (9) and its associated guide rail (10) are arranged so that they do not touch each other.