EP2841318B1 - Device for transmitting a force between a chassis and a body of a rail vehicle - Google Patents

Description

FIELD OF THE INVENTION

The invention relates to a device for transmitting power between a chassis and coupled to the chassis car body of a rail vehicle.

STATE OF THE ART

In rail vehicles chassis and car body are connected on the one hand via a secondary suspension with each other to allow a spring movement or a rebound and rebound of the car body, especially in a vertical height direction, but also in the lateral direction, in particular parallel to a transverse direction. However, the secondary suspension is not suitable for longitudinal driving of the chassis, i. for power transmission between the chassis and car body parallel to a longitudinal direction, which is necessary for the acceleration and deceleration of the car body by the chassis. Therefore, on the other hand, a device for longitudinal driving is necessary, the chassis and car body interconnects and at the same time spring movements and Ausdrehbewegungen of the car body relative to the chassis, as they arise, for example, when cornering allowed.

To meet these requirements, the prior art complex solutions with handlebars, trunnions, Lemniscate linkages and combinations of these elements known. The EP 1254821 A1 gives an example, in which the car body and chassis are connected to each other via a Lemniskatenanlenkung. Also the BE 665 271 A gives an example of a device for power transmission between a chassis and a car body.

A disadvantage of the known solutions is that - in addition to the considerable technical effort, which allows only small manufacturing tolerances - usually a relatively large space is required, which then for other elements, such as. Damper and / or roll stabilizers, is no longer available. In addition, the lifting of the car body from the chassis designed complicated because many fasteners of the known longitudinal entrainment devices are to be solved. The accessibility of these fasteners is usually very limited, which makes their control difficult.

OBJECT OF THE INVENTION

The object of the present invention is to avoid the abovementioned disadvantages. In particular, a structurally simple device for transmitting power in the longitudinal direction to be created, which allows spring movements and rotational movements of the car body relative to the chassis. In addition, the device should require little space and facilitate uncomplicated release of the car body from the chassis. Finally, manufacturing tolerances should be easily balanced and the device for inspection purposes to be easily accessible.

PRESENTATION OF THE INVENTION

This object is achieved with a device according to claims 1 to 10.
Core of the invention is the arrangement of longitudinal driving buffers on at least one cross member of a chassis on which longitudinal driving buffers sliding portions of a stop plate which is attached to a car body or a part thereof, slidably abut. The sliding portions abut against end faces of the longitudinal driving buffer, the end faces preferably being normal to a longitudinal direction of the running gear and facing in opposite directions. In this way can be transmitted parallel to the longitudinal direction of force between the chassis and the car body, ie a longitudinal driving can be realized without the sliding sections need to be fixed consuming at the Längsmitnahmepuffern. Instead, the sliding portions are slidably against the longitudinal driving buffers and their end faces, so that spring movements by means of a secondary suspension between the chassis and car body are possible without hindrance. That is, the secondary suspension represents the suspension between the car body and chassis.

The spring movements have a sliding of the sliding portions on the longitudinal driving buffers and their end faces result. In this case, the sliding can take place both parallel to a height direction and parallel to a transverse direction, wherein the longitudinal direction, height direction and transverse direction are preferably mutually normal. In addition, this makes it possible to remove the car body from the chassis without having to loosen connections due to the longitudinal drive. Finally, the longitudinal drive thus obtained from below with a view in the height direction is obvious and thus allows the control of the associated components.

Accordingly, it is provided according to the invention in a device for transmitting power between a chassis and a car body of a rail vehicle, that at least a first, a first end side exhibiting Längsmitnahmepuffer and at least a second, a second end side exhibiting Längsmitnahmepuffer are attached, that the first end of the second end face is spaced with respect to a longitudinal direction of the rail vehicle, that the two end faces in at least approximately opposite directions and that on the car body, a stop plate is provided with longitudinally spaced apart sliding portions, against which the end faces of the longitudinal driving buffer at least partially slidably.

Seen in the longitudinal direction, the chassis preferably has at least two axles arranged one behind the other, each with two wheels, and at least one cross member extending in the transverse direction. A particularly space-saving embodiment results when the longitudinal driving buffers are mounted on the same cross member, so that viewed in the longitudinal direction before and behind the cross member in each case at least one longitudinal driving buffer is arranged, wherein the end faces of the longitudinal driving buffer before and after the cross member in opposite directions parallel to the longitudinal direction. Accordingly, the stop plate is fork-shaped, designed with legs, wherein the legs are spaced apart in the longitudinal direction and each having one, pointing to a front side sliding portion. The sliding portions of the longitudinally spaced apart legs have corresponding to each other, wherein between these sliding sections are the longitudinal driving buffer and the cross member.

Therefore, it is provided in a preferred embodiment of the device according to the invention, that the at least one first longitudinal driving buffer and the at least one second longitudinal driving buffer are fixed to a cross member of the chassis, and that the stop plate is fork-shaped and legs each having a, pointing to an end sliding section includes.

According to the above-mentioned spring movements parallel to the height direction and / or transverse direction, it is provided in a particularly preferred embodiment of the device according to the invention that the sliding portions are movable parallel to a height direction and / or to a transverse direction. The spring travel parallel to the height direction is limited by the secondary suspension. The suspension parallel to the transverse direction also takes place via the secondary suspension, but in this case the travel is limited by a transverse stop, which is usually located in the region of the secondary suspension.

In order to make sliding of the sliding sections on the end faces particularly frictionless, it is provided in a particularly preferred embodiment of the device according to the invention that on each end face a sliding plate with a sliding surface is exchangeably attached. Due to the interchangeability, which is preferably realized by screwing the sliding plates with the longitudinal driving buffers, the sliding plates can be designed as cost-effective wearing parts. In this case, the sliding portions are wear resistant designed so that only the sliding plates must be renewed. Finally, by choosing the Gleitplattenmaterials the friction between the sliding plate and sliding section can be influenced.

In a particularly cost-effective embodiment of the device according to the invention, it is provided that the sliding plates are made of plastic.

In order to provide a maximum sliding surface for an optimal power transmission for a given space or volume, it is provided in a particularly preferred embodiment of the device according to the invention that the sliding plates seen in the longitudinal direction have the shape of a circle.

On the one hand to ensure optimum power transmission between the chassis and car body and on the other hand a chassis with only a simple cross member - material and cost-saving - to perform, it is provided in a particularly preferred embodiment of the device according to the invention that the cross member with the first attach to it and second longitudinal driving buffers in relation to the longitudinal direction of the rail vehicle is arranged centrally in the chassis.

The longitudinal driving buffer must be made of an elastic material. In order to save costs, it is provided in a particularly preferred embodiment of the device according to the invention that the at least one first longitudinal driving buffer and / or the at least one second longitudinal driving buffer are multilayered elastomeric buffers.

The elastic longitudinal driving buffers not only dampen braking and acceleration movements, but also enable - damped and limited - rotational movements of the car body relative to the chassis. Accordingly, it is provided in a particularly preferred embodiment of the device according to the invention that the car body is rotatable with the stop plate relative to the chassis about an axis of rotation which extends parallel to the height direction.

In order to be able to fasten a longitudinal driving buffer to a cross member, the longitudinal driving buffers have a base plate. This can be bolted to the cross member. In this case, an adjustment insert can be arranged between the cross member and the base plate, so that manufacturing tolerances can be easily compensated. Thus, a flat concern of the sliding sections can be guaranteed at each Längsmitnahmepuffer. On the other hand, a defined gap between the chassis and car body or between the end face of the respective longitudinal driving buffer and the respective sliding section can be adjusted on the Einstellbeilage. Accordingly, it is provided in a particularly preferred embodiment of the device according to the invention that the Längsmitnahmepuffer have a base plate and are secured by screwing the base plate with a cross member at this, wherein between the cross member and the respective base plate at least one adjusting insert is arranged.

BRIEF DESCRIPTION OF THE FIGURES

The invention will now be explained in more detail with reference to an embodiment. The drawings are exemplary and are intended to illustrate the inventive idea, but in no way restrict it or even reproduce it.

Fig. 1

eine Schnittansicht eines Fahrwerks und eines Teils eines Wagenkastens gemäß der Schnittlinie A-A in Fig. 2

Fig. 2

eine Aufsicht auf die Unterseite eines Fahrwerks eines Schienenfahrzeugs

Fig. 3

eine vergrößerte Detailansicht des Bereichs B aus Fig. 2

Showing:

Fig. 1

a sectional view of a chassis and a part of a car body along the section line AA in Fig. 2

Fig. 2

a view of the underside of a chassis of a rail vehicle

Fig. 3

an enlarged detail view of the area B from Fig. 2

WAYS FOR CARRYING OUT THE INVENTION

Fig. 1 shows a sectional view of a chassis 1 of a rail vehicle according to the section line AA in Fig. 2 , The chassis 1 comprises two axles 6, which are spaced apart in a longitudinal direction 3 and on each of which two wheels 7 are mounted. Furthermore, the chassis 1 has a cross member 8, which extends in a transverse direction 4, which is normal to the longitudinal direction 3 and a height direction 5 extends. The illustrated chassis 1 comprises no drive elements, but the device according to the invention can of course also be provided for drive trolleys in an analogous manner.

On the cross member 8, a first longitudinal driving buffer 9 and a second longitudinal driving buffer 10 are attached. In this case, viewed in the longitudinal direction of the first longitudinal driving buffer 9 is disposed in front of the cross member 8 and the second longitudinal driving buffer 10 after the cross member 8. The longitudinal driving buffers 9, 10 are known multilayer elastomer buffer having a corresponding elasticity.

The longitudinal driving buffers 9, 10 have seen in the longitudinal direction 3 at one end in each case a base plate 19 which is secured to the cross member 8 by means of screw 20, see. Fig. 3 , which is an enlarged detail view of area B of the Fig. 2 shows. At the other end seen in the longitudinal direction 3, the longitudinal driving buffers 9, 10 each have an end face 16, 17 which extends along the transverse direction 4 and the height direction 5. The end face 16 of the first longitudinal driving buffer 9 and the end face 17 of the second longitudinal driving buffer 10 point in opposite directions and away from each other.

At each end face 16, 17, a sliding plate 13 is attached to a sliding surface 14, wherein the sliding surfaces 14 along the transverse direction 4 and height direction 5 extend. The sliding plates 13 are designed as wearing parts and made of plastic. At the sliding surfaces 14 is in each case a sliding portion 18 of a leg 12 of a stop plate 11 flat and slidably, wherein the sliding portions 18 are designed wear-resistant. The legs 12 are spaced from each other in the longitudinal direction 3, so that the stop plate 11 seen in the transverse direction 4 forms a fork shape.

The stop plate 11 is in turn fixedly connected to a car body 2, of which a part in Fig. 1 is recognizable. The car body 2 is further coupled by means of a secondary suspension 22 to the chassis 1. The axles 6 with the wheels 7 are also coupled by means of a primary suspension 21 to the chassis 1.

In order to enable a flat abutment of the sliding portions 18 of the legs 12 on the sliding surfaces 14 of the sliding plates 13, adjusting inserts 15 between the cross member 8 and the base plates 19 are arranged. In this way, manufacturing tolerances can be considered easily. On the other hand, by means of the Einstellbeilagen 15 also defined gaps between the chassis 1 and car body 2 and between the sliding surfaces 14 of the sliding plates 13 and the sliding portions 18 can be adjusted.

As in Fig. 2 can be seen, the area of the longitudinal driving buffer 9, 10 and the sliding portions 18 of the legs 12 seen from below in the height direction is visible. This allows easy control of the device, for example, to determine the state of wear of the sliding plates 13. It continues Fig. 2 show that the device according to the invention, which requires only a simple cross member 8, plenty of space for other components, such as damper (not shown) for the secondary suspension 22 or roll stabilizers (not shown) leaves.

Since the sliding portions 18 are not rigidly connected to the sliding surfaces 14 of the sliding plates 13, but only slidably abut, slide the sliding portions 18 at spring movements of the car body 2 relative to the chassis. 1 from the sliding surfaces 14. That is, the car body 2 can be compared to the chassis 1 easily parallel to the height direction 5 and parallel to the transverse direction 4 by means of the secondary suspension 22 spring movements. In this case, the spring travel in the vertical direction 5 by the secondary suspension 22 and in the transverse direction by corresponding stops (not shown) limited.

At the same time, the flat abutment of the sliding portions 18 on the sliding plates 13 results in an optimum transmission of force parallel to the longitudinal direction 3, i. for positive and negative accelerations parallel to the longitudinal direction 3 guaranteed. In this case, a certain recoil damping is achieved by the damping of the elastomer of the longitudinal driving buffer 9, 10.

Finally, the elasticity of the longitudinal driving buffers 9, 10 also angularly limited rotational movements of the car body 2 relative to the chassis 1, wherein a corresponding axis of rotation is parallel to the height direction 5 and preferably in the center of the chassis. The damping of the elastomer causes the longitudinal driving buffer 9, 10 in this case, a certain shock absorption.

LIST OF REFERENCE NUMBERS

1

landing gear

2

car body

3

longitudinal direction

4

transversely

5

height direction

6

axis

7

wheel

8th

crossbeam

9

First longitudinal drive buffer

10

Second longitudinal driving buffer

11

stop plate

12

Leg of the stop plate

13

sliding plate

14

sliding surface

15

Einstellbeilage

16

Front side of the first longitudinal driving buffer

17

Front side of the second longitudinal driving buffer

18

sliding

19

baseplate

20

screw

21

primary suspension

22

secondary suspension

Claims (10)

1. Device for transmitting a force between a chassis (1) and a body (2) of a rail vehicle, in which at least one first traction link buffer (9), having one first end face (16), and at least one second traction link buffer (10), having a second end face (17), can be fixed to the chassis (1), wherein the first end face (16) is at a distance from the second end face (17) in relation to a longitudinal direction (3) of the rail vehicle, wherein the two end faces (16, 17) face in at least approximately opposite directions and wherein a stop plate (11) is to be attached to the body (2), characterised in that the stop plate is provided with mutually spaced sliding portions (18) protruding in the longitudinal direction (3), which the end faces (16, 17) of the traction link buffers (9, 10) abut at least in sections in a slidable manner.
2. Device according to claim 1, characterised in that the at least one first traction link buffer (9) and the at least one second traction link buffer (10) are fixed to a crossmember (8) of the chassis (1), and that the stop plate (11) is embodied in the form of a fork and comprises limbs (12) with, in each case, a sliding portion (18) facing an end face (16, 17).
3. Device according to one of claims 1 to 2, characterised in that the sliding portions (18) are movable parallel to a vertical direction (5) and/or to a transverse direction (4) .
4. Device according to one of claims 1 to 3, characterised in that in each case a slide plate (13) with a slide surface (14) is fixed to end face (16, 17) in a replaceable manner.
5. Device according to claim 4, characterised in that the slide plates (13) are manufactured from plastic.
6. Device according to one of claims 4 to 5, characterised in that the slide plates (13) have a circular form, seen in the longitudinal direction (3).
7. Device according to one of claims 2 to 6, characterised in that the crossmember (8) with the first and second traction link buffers (9, 10) attached thereto is arranged centrally in the chassis (1) with reference to the longitudinal direction (3) of the rail vehicle.
8. Device according to one of claims 1 to 7, characterised in that the at least one first traction link buffer (9) and/or the at least one second traction link buffer (10) take the form of multilayer elastomer buffers.
9. Device according to one of claims 1 to 8, characterised in that the body (2) with the stop plate (11) is rotatable relative to the chassis (1) about an axis of rotation which extends parallel to the vertical direction (5).
10. Device according to one of claims 1 to 9, characterised in that the traction link buffers (9, 10) have a base plate (19) and are fixed to the same by screwing the base plate (19) to a crossmember (8), wherein at least one adjustment insert (15) is arranged between crossmember (8) and the respective base plate (19).

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