EP1431157A1 - Cushioning device for the underframe of a railway wagon - Google Patents

Abstract

The shock absorber unit has a shock absorber (2) and damper platform (1) forming a module which is detachably fastened on brackets (6) in the bogie (10). The shock absorber lies upon the damper platform at least by its damper heads (3) separately constructed on both ends, and a locking element (4) is detachably fastened on each side of the damper head at the bottom and clamps behind the top flange of the damper platform. A recess (7) is formed on the damper head at the connecting point of the locking element to the damper head. An Independent claim is included for an arrangement whereby installation and removal in the bogie of the module consisting of a shock absorber and damper platform can be carried out preferably from beneath.

Description

The invention relates to a shock absorber device and arrangement on a Base of a rail-bound freight car arranged damper table according to the preamble of claim 1.

The aforementioned facilities are particularly for railway freight wagons that are used for Transport of shock-sensitive loads can be used.

DE 41 10 968 describes a support and guide device for mounting a Bumper beam described in the base of a rail vehicle, in which the Bump bar is formed from a pair of side sills that face towards extend the longitudinal axis of the rail vehicle. The spaced apart Longitudinal beams are spaced apart by cross beams connected. The longitudinal members have lateral, outwardly directed recesses protrude into the support and guide elements arranged in the base frame. The support and guide elements are designed as slide or roller bearings, which are arranged in pairs with respect to a transverse plane and each in are of the same design, either as plain or as roller bearings. Between the underframe and the bump bar mounted longitudinally in it is a Longitudinal damper arranged.

The support and guide device described above also enables long rail vehicles a safe return of the bumper beam and thus of the shock absorber. However, the device has a complicated structure and the setting of the specified tolerances between the impact beam on the one hand and supporting and guiding element on the other hand requires the provision and Attachment of side and height adjustable pedestals in the base frame.

In practice, a long stroke shock absorber arrangement is known, in which one the shock absorber on a so-called damper table integrated in the base frame on which the shock absorber alternately, depending on which one Side of the shock comes, slides. The installation space is through a screwed cover covered that for maximum traffic load of the floor and forces from the Railway operation is designed. A lateral limitation on the slide bracket fixes the Damper in the lateral direction. The force flow from the slide beam over the damper into The base frame runs over a support wedge that can be inserted from below.

This version is very time-consuming to assemble, since in particular the cover and support wedge and driver brackets must fit exactly together and no angular misalignment may have to each other. Under certain circumstances, a malposition could lead to a "Walking" of the damper, with the result that it moves upwards and supports the lid improperly.

Further long-stroke shock absorbers are in EP 0 333 152 A2, here with an outer housing, and in US 3,205,835 and US 3,223,052, here as spring-loaded Long stroke damper executed, described. Common to all of the aforementioned solutions is that the damper must be installed individually and from above and on a damper table integrated in the base frame. With this arrangement The damper usually has to be fitted with a car when dismantling the damper removed, which is costly overall.

The object of the invention is to provide a shock absorber device for rail-bound Train and arrange freight wagons with bumpers so that their Storage and securing is improved as well as the effort for assembly and Disassembly can be reduced.

The object is solved by the features of claim 1. Appropriate developments of the invention are claimed in the subclaims.

The arrangement and design of the shock absorber according to the invention has in particular the advantage that the effort for the assembly of the shock absorber device, including the positioning and alignment of their functional parts to each other is simplified because the damper and damper table as an assembly (module / functional unit) - especially from below - can be installed. Thereby the assembly and repair work is significantly reduced since there is no dismantling of car internals and no opening of the floor is required.

Due to the configuration according to claim 2, the damper can prevent rotation can be secured and by the configuration according to claim 3, the lateral Guidance of the damper can be guaranteed.

The configuration according to claim 4 allows threading and positioning of the Damper table in the intended installation space in the base frame from below or considerably relieved.

Fig. 1 eine Stoßdämpfereinrichtung in Draufsicht im Einbauzustand;

Fig. 2 einen Querschnitt der Stoßdämpfereinrichtung im Bereich des Dämpferkopfes ;

Fig. 3 eine Ansicht B nach Fig. 2 und

Fig. 4 eine Draufsicht auf ein Ende des Moduls in der Montagephase.

The invention is explained in more detail using an exemplary embodiment. In the accompanying drawing, to which reference is made in the exemplary embodiment, shows

Figure 1 shows a shock absorber device in plan view in the installed state.

2 shows a cross section of the shock absorber device in the region of the damper head;

Fig. 3 is a view B of FIG. 2 and

Fig. 4 is a plan view of one end of the module in the assembly phase.

Fig. 1 shows a plan view of a partial view of an underframe 10 of a railway freight wagon. To simplify the representation of the invention Solution the chassis and superstructure are not shown. The underframe 10 is separated by two lateral and spaced, in the vehicle longitudinal direction extending longitudinal beams 10.1 formed with each other by a A large number of cross beams 10.2 are connected. The one from the two inner ones Beam profiles of the longitudinal beams 10.1, with their open web sides face, the upper edge of the cross member 10.2 and the bottom of the Floor included, extending the length of the freight car Space serves for the slidable inclusion of the same length extending bumper beam 9. The bumper beam 9 is made of two parallel Double T-beams formed, which are mutually by transverse struts are spaced. The bumper beam 9 is supported in the longitudinal direction on a Longitudinal direction of the rail vehicle extending damper 2, which on a in the base frame 10 integrated damper table 1 at least with the two Ends of the damper 2 specially designed damper heads 3 rests.

2 and 3 show the special design of the damper head 3 and the connection with the damper table 1 and with the base frame 10. On the damper head 3 is a hook-like or L-shaped securing element on each side in the lower region 4 arranged, the one hand with its web with the damper head 3 is detachably connected and on the other hand with its belt the upper chord 5 of Damper table 1 reaches behind. At the connection point between the securing element 4 and damper head 3 is machined and there has an additional Area in the form of a recess 7. The securing element 4 is thus against Twisted secured. The securing elements 4 also serve for lateral Guiding the damper 2.

Damper 2 and damper table 1 thus form an assembly (functional unit) that As a module, cheaper assembly and disassembly guaranteed. This module can now be detachably connected to consoles 6 arranged on the base frame 10.

It can be seen from FIG. 4 that the damper table 1 in the region of the damper head 3 is provided with a vertical notch 8, which enables the module from can be mounted below. When assembling the module is in one position brought parallel to the longitudinal axis of the vehicle. Then the head end with the notch 8 of the damper table 1 in the area of a console 6, while the other console 6 is outside the module. Now the module passed vertically upwards past the consoles 6 and with freedom of movement on the Mounted consoles 6 and then releasably connected to them.

List of the reference numerals used

1

damper platform

2

shock absorber

3

muffler head

4

fuse element

5

upper chord

6

console

7

return

8th

notch

9

buffer beam

10

undercarriage

10.1

longitudinal beams

10.2

crossbeam

Claims (5)

Shock absorber device and arrangement on a damper table arranged in the underframe of a rail-bound rail freight wagon and with shock beams arranged in the underframe, which are mutually supported by the shock absorber to the underframe, characterized in that the shock absorber (2) and the damper table (1) form an assembly (module) , which is releasably attached to brackets (6) in the base frame (10), that the shock absorber (2) rests on the damper table (1) at least with its damper heads (3) specially designed at both ends and that on each side of the damper head (3 ) below a securing element (4) is releasably fastened, which engages behind the upper belt (5) of the damper table (1). Shock absorber device according to claim 1, characterized in that a machined recessed surface in the form of a recess (7) is provided on the damper head (3) at the connection point securing element (4) with the damper head (3). Shock absorber device according to claim 1 or 2, characterized in that the securing elements (4) are designed as a lateral guide of the damper (2). Shock absorber device according to claim 1, characterized in that the damper table (1) is provided in the region of the damper head (3) with a vertical notch (8), via which the damper table (1) on the brackets (6) of the base frame (10) vertically can be passed. Arrangement according to one of claims 1 to 4, characterized in that the assembly and removal of the assembly (module), consisting of shock absorber (2) and damper table (1), is preferably carried out from below in the base frame (10).

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