DE20219685U1 - Shock absorber unit for railway goods wagon has shock absorber and damper plate forming module which is detachably fastened on brackets in chassis, and shock absorber bears upon damper plate by damper pistons constructed on both ends - Google Patents

Abstract

The shock absorber unit for a railway goods wagon has a shock absorber (2) and damper plate (1) forming a module which is detachably fastened on brackets (6) in the chassis (10). The shock absorber bears upon the damper plate at least by its damper pistons (3) constructed on both ends. A locking element is detachably fastened on each side of the damper piston at the bottom and grips round the upper flange of the damper plate. An independent claim is included for an arrangement whereby the fitting and removing of the module consisting of a shock absorber and damper plate can be carried out in the chassis preferably from the bottom.

Description

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

The aforementioned facilities are in particular for rail freight wagons, those for the transport of shock-sensitive loading goods are used, provided.

In the DE 41 10 968 describes a support and guide device for mounting a bumper beam in the underframe of a rail vehicle, in which the bumper beam is formed from a pair of side longitudinal beams which extend in the direction of the longitudinal axis of the rail vehicle. The spaced-apart longitudinal members are connected to one another by cross members arranged at a distance. The longitudinal members have lateral, outwardly directed recesses into which support and guide elements project into the base frame. The support and guide elements are designed as slide or roller bearings, which are each arranged in pairs with respect to a transverse plane and are each of the same design, either as slide or roller bearings. A longitudinal damper is arranged between the underframe and the shock beam, which is mounted longitudinally displaceably in it.

The support and guide device described above allows Safe return of the bumper beam even on long rail vehicles and thus the shock absorber. However, the device has a complicated structure and setting the specified tolerances between bumper beams on the one hand and support and guide element on the other hand, the provision and fastening requires and height adjustable bearing blocks in the base.

A long stroke shock absorber arrangement is from practice known, in which the shock absorber on a fixed in the base integrated so-called damper table on which the shock absorber alternates, depending on which side the shock comes from, glides. The installation space is covered by a screwed lid, which for maximum Traffic load on the floor and powers out is designed for rail operations. A lateral limit fixed on the slide carrier the damper in the lateral direction. The flow of power from the slide to the damper Underframe runs over one support wedge insertable from below.

This version is very assembly-intensive, since in particular cover, support wedge and driver brackets must fit exactly together and no angular misalignment may have to each other. A misalignment could in certain circumstances lead to a "hiking" of the damper, with the consequence that this moves upwards and inadmissible on Supported lid.

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

The object of the invention is a shock absorber for railbound Freight wagons with bumper beam to train and arrange so that their storage and securing is improved as well as the effort for assembly and disassembly can be reduced.

The task is characterized by the characteristics of claim 1 solved.

Appropriate developments of the invention are in the subclaims claimed.

The arrangement and training according to the invention of the shock absorber 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 dampers and damper table as an assembly (module / functional unit) - especially from below - installed can be. This considerably reduces the assembly and repair work, there is no removal of car internals and no opening of the floor is required.

By the design according to claim 2 can the damper secured against twisting and by the design according to Claim 3 can lateral guidance the damper guaranteed become.

By the design according to claim 4 is threading and positioning the damper table in allows the intended installation space in the base from below or considerably relieved.

The invention is based on an embodiment explained in more detail. In the associated drawing, to the in the embodiment Reference is made to shows

1 a shock absorber device in plan view in the installed state;

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

3 a view B after 2 and

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

1 shows a plan view of a partial view of an underframe 10 of a rail freight wagon. In order to simplify the representation of the solution according to the invention, the representation of the chassis and the superstructures is dispensed with.

The base 10 is made by two side and spaced longitudinal beams running in the longitudinal direction of the vehicle 10.1 formed with each other through a variety of cross members 10.2 are connected. That of the two inner beam profiles of the side members 10.1 , which face each other with their open web sides, the upper edge of the cross beams 10.2 and enclosed space on the underside of the floor, which extends over the length of the freight wagon, serves for the displaceable reception of the bumper beam, which extends over the same length 9 , The bumper beam 9 is formed from two parallel T-beams, which are spaced apart by transverse struts. The bumper beam 9 is supported in the longitudinal direction on a damper extending in the longitudinal direction of the rail vehicle 2 starting on one in the base 10 integrated damper table 1 at least with those on both ends of the damper 2 specially trained damper heads 3 rests.

2 and 3 show the special design of the damper head 3 and the connection with the damper table 1 as well as with the base 10 , On the damper head 3 is a hook-like or L-shaped securing element on each side in the lower area 4 arranged the one hand with its bridge with the damper head 3 is detachably connected and on the other hand with his belt the upper belt 5 the damper table 1 engages behind. At the connection point between the securing element 4 and damper head 3 is processed and there has an additional area in the form of a recess 7 on. This is the securing element 4 secured against twisting. The securing elements 4 are also used for lateral guidance of the damper 2 ,

damper 2 and damper table 1 thus form an assembly (functional unit) which, as a module, ensures cheaper assembly and disassembly. This module can now be attached to the base frame 10 arranged consoles 6 be releasably connected.

Out 4 can be seen that the damper table 1 in the region of the damper head 3 with a vertical notch 8th which enables the module to be installed from below. During assembly, the module is brought into a position parallel to the vehicle's longitudinal axis. Then the head end with the notch 8th the damper table 1 in the area of a console 6 led while the other console 6 is located outside the module. Now the module is vertically up on the consoles 6 guided past and with free movement on the consoles 6 put on and then releasably connected to them.

1

damper fish

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)

Buffer means and arranged on a arranged in the underframe of a rail-mounted railway goods wagon damper table and arranged in the base frame buffer beam, which is supported reciprocally via the shock absorber to the undercarriage, characterized net gekennzeich that the shock absorber ( 2 ) and the damper table ( 1 ) form an assembly (module) that is mounted on consoles ( 6 ) in the base ( 10 ) is releasably attached so that the shock absorber ( 2 ) at least with its damper heads specially designed at both ends ( 3 ) on the damper table ( 1 ) and that on each side of the damper head ( 3 ) below a securing element ( 4 ) is releasably attached, which the upper chord ( 5 ) of the damper table ( 1 ) engages. Shock absorber device according to claim 1, characterized in that securing element ( 4 ) with the damper head ( 3 ) a machined recessed surface in the form of a recess ( 7 ) on the damper head ( 3 ) is provided. Shock absorber device according to claim 1 or 2, characterized in that the securing elements ( 4 ) as a side guide of the damper ( 2 ) are trained. Shock absorber device according to claim 1, characterized in that the damper table ( 1 ) in the area of the damper head ( 3 ) with a vertical notch ( 8th ) is provided over which the damper table ( 1 ) on the consoles ( 6 ) of the base ( 10 ) can be passed vertically. Arrangement according to one of claims 1 to 4, characterized in that the installation and removal of the assembly (module) consisting of shock absorbers ( 2 ) and damper table ( 1 ), in the base ( 10 ) preferably from below.