SK282026B6 - Device for supporting the body of a railway vehicle on its underframe - Google Patents

Abstract

Device for mounting the structure of a railway wagon on its bogie by means of rollers which are located between the structure and the bogie and with a long-stroke shock absorber acting as a shock absorber on the railway wagon. In the space of the contact surfaces (12) of the chassis (2) there are blocks (5) of rollers with several rollers (6) and in each roller block (5) there are four rollers (6) optimizing the load.

Description

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 part of the 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 beneath 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 bumper 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 plates with too high friction values to enable the long-term shock absorber to function without failure.

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 chassis which ensures a reliable operation of the long-stroke shock absorber.

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 freezing units in freezer wagons, which are common, for example, for lorries. This can compensate for the increased cost of fitting a 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 and FIG. 5: a top view of a long stroke damper positioned between the chassis and the structure.

DETAILED DESCRIPTION OF THE INVENTION

In a shock absorbing railway carriage with a structure 1 and its associated bogies 2, which are connected to one another by a long-stroke shock absorber 3, the invention consists essentially of roller blocks 5 which are disposed in cantilevered rectangular holes 7 on the bogie and each having a plurality of rollers 6 The number of roller blocks 5, 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 a railway carriage with the expected relatively higher load along the whole vehicle. higher number of roller blocks 5 and roller 6 than on vehicles with expected lower load during transport.

The roller blocks 5 preferably have four rollers 6, which are also preferably placed 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 area of the bogie contact surfaces 12 in rectangular holes 7 forming the contact surfaces 12. Elastic pads 8 are placed in the rectangular holes 7 on which the roller blocks 5 are elastically supported to compensate for the angle of rotation of the rollers. 6 in the event of an impact load. This elastic pad 8 may consist, for example, of a rubber plate.

The counter-tracks 4 for the roller blocks 5 consist of a hardened flat material which is located on the lower part 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 adapted adapters, each having a sliding plate 11 on which its associated counter-track 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 the bogie 2 under the guide rail 10 which extends over it and into which recesses 15 buckle 9 protrudes. In normal operation, the clip 9 and the guide rail 10 are contactlessly designed in such a way that, on the one hand, it prevents the construction 1 from being lifted up, but on the other hand it does not prevent the rolling or tilting of the structure 1. sliding bearing of the structure 1 on the chassis 2. The clip 9 is preferably

Thus, in the event that one or more roller blocks 5 are to be replaced by an adapter with sliding plates 11, it is possible to lift the structure 1 away from the chassis 2 with great effort and allows the necessary fitting of 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. there is further reinforcement by supporting the backing plate towards the center when the backing of the backing plate 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 two-axle freight wagons. If the bogie 2 is made with a lower torsional stiffness, weight can be saved, thereby 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 rollers (6) for optimizing the load are arranged in each roller block (5). Device according to claim 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). Device according to claims 1 to 3, characterized in that the roller blocks (5) are designed as cabinets in which rotary rollers (6) are mounted in fixed positions. Device according to claims 1 to 4, characterized in that the roller blocks (5) are guided in the area of the rectangular openings (7) on the chassis (2) which form the contact surfaces (12). Device 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 of hardened flat material. Device according to claim 1 to 7, characterized in that the roller blocks (5) are detachably 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) is mounted. ). Apparatus according to claim 1 to 8, characterized in that the structure (1) is provided with at least four corners (13) with anti-lift safeguards (14), each consisting of one clip (9) mounted on the chassis. (2) below the guide rail (10), the clip (9) extending into the recess (15) in the guide rail (10). Device according to claim 1 to 10, characterized in that the clip (9) is detachably fastened to the chassis (2). Device according to claims 1 to 10, characterized in that the clip (9) and the associated guide rail (10) are arranged so that they do not touch each other.