Coupling assembly

Abstract

The invention relates to a coupling arrangement for a rail vehicle, comprising a first coupling part, comprising a coupling shaft or coupling rod having a through-opening in a first end region, a rear coupling part with a mounting structure for installation on a rail vehicle, a joint arrangement comprising a spherical bearing and a vertically extending pivot pin for articulated connection of the coupling shaft to the rear coupling part, and a device for limiting torsional or roll movements in the area of ​​the connection between the coupling shaft and the rear coupling part. The invention is characterized in that the device for limiting torsional or roll movements is arranged on the coupling shaft.

Description

[0001] The invention relates to a coupling arrangement, specifically with the features from the preamble of claim 1. The present invention relates to a coupling for a rail vehicle with a coupling shaft and a pivot pin which extends through a through-bore of the coupling shaft to create a pivotable connection.

[0002] Coupling assemblies for rail vehicles generally comprise a rear coupling part for mounting on a rail vehicle and a front coupling part with a coupling head for coupling to a compatible mating coupling assembly. The connection between the two is pivotally arranged via a hinge, in particular a spherical bearing, so that the front coupling part can pivot relative to the rear end during operation. One way to create the pivotable connection is to position a pivot pin in a through-hole in a coupling shaft such that the coupling shaft can pivot relative to it. However, this also introduces torsional stresses into the hinge assembly, which must be limited.

[0003] The invention was based on the objective of reliably ensuring a device for limiting the torsional movement of a coupling shaft relative to the rear coupling part using simple means.

[0004] The solution is characterized by the features of claim 1. Advantageous embodiments are described in the dependent claims.

[0005] A coupling arrangement for a rail vehicle, comprising a first coupling part comprising a coupling shaft or coupling rod having a through-opening in a first end region, a rear coupling part with a fastening structure for mounting on a rail vehicle, a joint arrangement comprising a spheroidal bearing and a vertically extending pivot pin for articulated connection of the coupling shaft to the rear coupling part, a device for limiting torsional or roll movements in the area of ​​the connection between the coupling shaft and the rear coupling part; is characterized in that the device for limiting torsional or roll movements is arranged on the coupling shaft.

[0006] The solution according to the invention avoids contact with the connecting components and corresponding wear by limiting the torsional movement of the coupling rod or shaft in the joint connection.

[0007] The device preferably comprises torsion movement limiting elements, which, when viewed in the width direction of the coupling assembly, are arranged on both sides of the pivot pin and the through-hole on the opposite sides of the coupling shaft, in the central position of the coupling shaft relative to the coupling rear section. This means an arrangement on both the upper and lower sides of the coupling shaft when installed. It is advantageous if the individual torsion movement limiting elements are arranged symmetrically with respect to a plane formed by the longitudinal axis of the coupling assembly and the pivot axis of the pivot pin when viewed in the central position of the coupling shaft relative to the coupling rear section.

[0008] A particularly advantageous feature is the provision of individual torsion limiting elements, which are integrally formed on the coupling shaft and allow the components to roll during interaction, especially between the coupling shaft and the rear coupling part. These individual torsion limiting elements are preferably designed as spherical caps, i.e., with a three-dimensionally curved surface. This offers the advantage of low-wear interaction between the coupling shaft and the rear coupling part in the event of large deflections, due to the resulting rolling motion between them.

[0009] The integrated design offers the advantage that no additional connecting elements or devices need to be provided on the coupling shaft or coupling rod, the available installation space can be fully utilized, and the limiting elements can simply be provided on these during manufacturing.

[0010] Alternatively, the individual torsional motion limiting elements can be designed as separate components and connected to the coupling shaft.

[0011] The arrangement is symmetrical with respect to the joint arrangement.

[0012] The solution according to the invention is particularly used in a coupling arrangement in which the coupling rear part comprises a pull / push device with a housing which is mounted on the mounting structure and forms a first connection area with an opening for receiving the pivot pin of the joint arrangement, wherein the connection area is particularly fork-shaped for receiving the end area of ​​the coupling shaft.

[0013] The solution is described in the figures below. Specifically, the following is shown: Figure 1a a perspective view of a section of a coupling arrangement with torsion limitation; Figure 1b a view in the direction of the longitudinal axis according to Figure 1a Figure 1: a sectional view; Figure 1: a view according to Figure 1b in a section plane through the hinge bolt.

[0014] The Figures 1a and 1b The illustrations, using an excerpt from a coupling assembly 1 as an example, demonstrate the inventive arrangement of a device 10 for limiting the torsional movement of a coupling shaft in this assembly from different views. Figure 1a shows a perspective view that Figure 1bA view along the longitudinal axis. To illustrate the individual directions, a coordinate system is shown as an example. The X-direction describes the longitudinal direction of the coupling arrangement 1, which, when used in rail vehicles, coincides with their longitudinal direction and, when the coupling shaft is aligned in this direction, corresponds to its central position, in which the longitudinal axis L of the coupling shaft 9 coincides with the longitudinal direction. The Y-direction describes the direction perpendicular to the X- and Y-directions. The Z-direction describes the extension perpendicular to the X- and Y-directions.

[0015] The Figures 1c and 1d Illustrating this in an axial section through the views of the Figures 1a and 1b The limitation of possible torsional movements. The range of motion around the respective longitudinal and joint axes L, G is represented by dashed lines.

[0016] The coupling arrangement 1 for a rail vehicle comprises a first front coupling part 2 and a rear coupling part 6 with a mounting structure 7 for installation on a rail vehicle. This rear coupling part has a first end region 3 and a second end region (not shown) opposite the first end region. The front first coupling part 2 comprises a coupling shaft 5 or coupling rod having a through-opening 4 in the first end region. In the second end region (not shown), a coupling head (also not shown) is provided for interaction with a coupling head of a mating coupling arrangement. The coupling head can be formed integrally with the coupling shaft 5 or as a separate component connected to the coupling shaft 5 via a detachable connection, in particular a sleeve connection.

[0017] The first front coupling part 2 is articulated to the rear coupling part 6 via a joint assembly 11 comprising a spherical bearing 8 and a pivot pin 9 extending through it. The joint assembly 11 with the spherical bearing allows the coupling shaft to deflect both in the horizontal plane, which can be described by the longitudinal direction and a perpendicular to it, and in the vertical direction.

[0018] The rear coupling component comprises a pull / push device 12 with a housing 13, which is mounted on the mounting structure 7. The housing 13 has a first connection area 14 with an opening 15 for receiving the pivot pin 9 of the joint assembly 11. The connection area 14 is fork-shaped to receive the end section of the coupling shaft 5. The second connection area 16 of the housing 13 serves for connection to the mounting structure 7. The mounting structure 7 is designed, for example, as a bearing block for attachment to the rail vehicle.

[0019] To limit the torsional deflection of the coupling shaft 5 to a predetermined dimension, a device 10 is provided in the connection area between the coupling shaft 5 and the rear coupling part 6. According to the invention, the device 10 for limiting torsional movements is provided on the coupling shaft 5 in the area of ​​the connection with the rear coupling part 6. The device 10 comprises individual torsion limiting elements 17. These are integrally formed with the first end region on the coupling shaft 5 and have a curved surface for interaction with the rear coupling part 6. According to a particularly advantageous embodiment, as shown in the Figures 1a to 1d The individual torsion limiting elements are illustrated as a spherical cap integrally formed at the first end region of the coupling shaft 5.

[0020] The arrangement is preferably carried out in the central position of the coupling shaft 5 opposite the rear coupling part 6 in the width direction of the coupling arrangement 1, on both sides of the pivot bolt 9, in particular the pivot axis G and the through opening 4 on the opposite sides of the coupling shaft 5.

[0021] A plurality of such torsional movement limiting elements 17 are provided here. The arrangement of the individual torsional movement limiting elements 17 in the central position of the coupling shaft 5 relative to the rear coupling part 6 is preferably symmetrical with respect to a plane which is formed by the longitudinal axis L of the coupling arrangement 1 and the pivot axis G of the pivot bolt 9.

[0022] The individual torsional motion limiting elements 17 are integrally formed with the coupling shaft 5, in particular being formed on or embedded within it. The spherical cap shape of the individual torsional motion limiting elements 17 describes three-dimensionally curved surfaces for rolling on the rear coupling part 6, especially in the area of ​​the first connection 14 on the housing 13 of the pull / push device 12. Reference symbol list

[0023] 1 Coupling assembly 2 First front coupling part 3 First end section 4 Through opening 5 Coupling shaft 6 Rear coupling part 7 Mounting structure 8 Spherical bearing 9 Hinged pin 10 Torsion limiting device 11 Joint assembly 12 Tension and / or impact device 13 Housing 14 First connection section 15 Opening 16 Second connection section 17 Torsion limiting elements

Claims

1. Coupling arrangement for a rail vehicle, comprising a first coupling part, comprising a coupling shaft or coupling rod having a through-opening in a first end region, a rear coupling part with a fastening structure for mounting on a rail vehicle, a joint arrangement having a spheroidal bearing and a pivot pin for articulated connection of the coupling shaft to the rear coupling part, with a device for limiting torsional or rolling movements in the area of ​​the connection between the coupling shaft and the rear coupling part; characterized by the fact that The device for limiting torsional or roll movements is arranged on the coupling shaft.

2. Coupling arrangement according to claim 1, characterized by the fact thatThe device comprises torsional movement limiting elements which are arranged in the central position of the coupling shaft relative to the rear part of the coupling, viewed in the width direction of the coupling arrangement, on both sides of the pivot bolt and the through-opening on the opposite sides of the coupling shaft.

3. Coupling arrangement according to claim 2, characterized by the fact that The individual torsional movement limiting elements are arranged symmetrically in the central position of the coupling shaft relative to the rear part of the coupling, with respect to a plane formed by the longitudinal axis of the coupling assembly and the pivot axis of the pivot bolt.

4. Coupling arrangement according to one of claims 2 to 3, characterized by the fact that the individual torsional motion limiting elements are integrally formed with the coupling shaft, in particular being formed on or out of it.

5. Coupling arrangement according to one of claims 2 to 3, characterized by the fact thatthe individual torsional motion limiting elements are designed as separate components and connected to the coupling shaft.

6. Coupling arrangement according to one of claims 2 to 5, characterized by the fact that The individual torsional motion limiting elements have three-dimensionally curved surfaces for rolling on the rear coupling part.

7. Coupling arrangement according to claim 6, characterized by the fact that the individual torsional movement limiting elements are designed in a spherical shape.

8. Coupling arrangement according to one of claims 1 to 7, characterized by the fact that the coupling rear part comprises a pull / push device with a housing which is mounted on the mounting structure and forms a first connection area with an opening for receiving the pivot pin of the joint arrangement, wherein the connection area is in particular fork-shaped for receiving the end area of ​​the coupling shaft.

Images