DE102005004721B4 - Connection to a bogie of a rail vehicle - Google Patents

Abstract

Connection between the wheels (4) and a frame (2) of a bogie of a rail vehicle comprising the following features:
- Two springs (31, 32) each one of the wheels (4), wherein at least one of the springs (31, 32) comprises a rubber elastic resilient element,
- One with the frame (2) firmly connectable sensor means (44) for detecting at least a predetermined part of a weight, which essentially emanates from a load carried by the bogie, and
- An adapter (52) which is fastened to the frame (2), with which a part of one of the springs (31, 32) is firmly connected and which for a load-transmitting abutment of a part of the other spring (31, 32) on the sensor device (44) is formed with a guide for guiding the part of the other spring (31, 32) in Federwegrichtung.

Description

The The invention relates to a connection between the wheels and a frame of a bogie of a rail vehicle.

For example under the name Y25 is one by the International Union of Railways (UIC) Standardized, biaxial bogie with four wheels, where the wheel axles so with the rest Bogies are connected, that in the vertical direction a possibility of movement results. For this purpose, each wheel is an axle box housing via a spring-damper arrangement with the rest of the bogie connected. The axlebox housing is in its lower part with itself on both sides of the camp in the direction of travel extending supports for receiving an axial End of coil springs formed at the other axial Over corresponding, associated with a frame of the bogie caps being held.

For example, from the DE 691 03 784 T2 It is known that in rail vehicles, the braking power, especially at higher speeds, is adapted to the example, depending on the load condition of each load. In this case, each of the wheels via two coil spring assemblies, which are arranged on both sides of a bearing of the wheel, connected to the rest of the chassis of the rail vehicle and there are disc brakes with parallel to the wheels and attached to the wheels brake discs provided. Each of the coil spring assemblies consists of two coaxially arranged coiled springs. One of the helical spring assemblies of one of the wheels acts as follows with a mounted in the chassis, the braking power weight-dependent controlling pressure reducing valve together: The two coaxially arranged helical springs have different heights, so that under the weight of the railway wagon only the outer spring operates and the load transfer the pressure reducer is added to the inner spring via a first path and under load of the wagon and the load is transferred to the pressure reducer via a second, different from the first way. So are from the DE 691 03 784 T2 neither springs with a rubber elastic resilient element nor an adapter with which a part of one of the springs is firmly connected, nor an adapter known, which is designed to guide a part of the other spring in Federwegrichtung.

From the GB 2 307 889 A For example, a suspension of a railway wheel is known in which two screw compression springs are mounted between an adapter fixed to a base of the railway vehicle and a lower bracket comprising a journal bearing.

From the US 2002/0089102 A1 is a particular intended for rail vehicles hydraulic spring is known which comprises at least one rubber-elastic element.

A The object of the invention is to provide a connection between the wheels and to provide a frame of a bogie of a railway vehicle, so that even when using a variety of modern spring damper assemblies, in conjunction with a load detector for the brake power adjustment a perfect interaction of the respective spring-damper arrangement ensured with the load detector.

The The object is solved by the subject matter of claim 1. advantageous Embodiments are described in the subclaims.

• – Zwei Federn je einem der Räder, wobei wenigstens eine der Federn wenigstens ein gummielastisch federndes Element umfasst,
• – eine mit dem Rahmen fest verbindbare Sensoreinrichtung zum Erfassen wenigstens eines vorgebbaren Teils einer Gewichtskraft, die im wesentlichen von einer vom Drehgestell getragenen Last ausgeht, und
• – ein Adapter, der am Rahmen befestigbar ist, mit dem ein Teil einer der Federn fest verbindbar ist und der für ein lastübertragendes Aneinanderanliegen eines Teils der anderen Feder an der Sensoreinrichtung mit einer Führung zum Führen des Teils der anderen Feder in Federwegrichtung ausgebildet ist.

According to claim 1, a connection between the wheels and a frame of a bogie of a rail vehicle includes the following features:

• Two springs each one of the wheels, wherein at least one of the springs comprises at least one rubber elastic element,
• - A fixedly connected to the frame sensor means for detecting at least a predetermined part of a gravitational force, which essentially emanates from a load carried by the bogie, and
• - An adapter which is attachable to the frame, with which a part of one of the springs is firmly connected and which is designed for a load-transmitting abutment of a portion of the other spring on the sensor device with a guide for guiding the part of the other spring in Federwegrichtung.

Thereby, that the adapter for a part of a spring for abutment with the sensor device a appropriate leadership is formed, is a perfect interaction between the part of the spring and the sensor device ensured.

At the same time can be adapted to the standardized frame of the bogie with the adapter vary dimensioned spring-damper assemblies, without the need to adjust the frame, with only the adapter to the respective spring-damper assembly is to adapt, which is much easier and cheaper is feasible as an adaptation of the frame. The precisely prefabricatable adapter further ensures that, in particular in the case of hydraulically steaming, elastic springs whose main axes are fastened to the frame at an exactly predeterminable distance and with a predeterminable orientation, any deviation from the predefinable Distance and the predetermined orientation would undesirably cause a change in their spring characteristics.

Further Advantages and details of the invention will become apparent from the in following described embodiment the invention with reference to the figure.

The figure shows as an embodiment of the invention in a longitudinal section-like representation of a bogie type Y25 in the region of one of the wheels 4 of the bogie. In the area shown, the bogie comprises an axle box housing 12 , in the middle of which a rolling bearing 14 is arranged, which supports one end of one of the two axes of the bogie. Here is the axle box 12 formed in a lower region to the left and right side cup-like areas forming, each of which has in each case a lower axial end of one of the two hydraulically damping elastic springs 31 and 32 receives.

A center piece 36 the right spring 32 is about a bolt 54 directly with an adapter 52 connected. In other embodiments, the bolt may also be an integral part of the spring or the adapter or the spring and the adapter are connected to each other in other ways.

At the upper axial end of the left spring 31 is a centerpiece 35 the left spring 31 with a disc-like guide plate 42 connected in a vertical through opening in the adapter 52 is guided movably in the vertical direction. The guide plate 42 is with the middle piece 35 connected in a similar manner as previously for the connection between the center piece 36 the right spring 32 and the adapter 52 is described.

The guide plate 42 acts on a sensor device 44 a, with which at least part of a weight force is detected for a brake power adjustment to different load conditions, which essentially emanates from a supported by the bogie, for example, depending on the load changing load. This is part of the sensor device 44 stuck with a frame 2 connected to the bogie.

The adapter 52 is at the frame 2 attached to the bogie, for example by welding. The adapter 52 is between his left ring-like area for the left spring 31 associated guide plate 42 and its right circular disc-like area for fixing the right spring 32 elongated formed with a substantially rectangular cross-section. Typically, in this case, the left annular portion of the adapter 52 a larger diameter than the right circular disk-like region and the intermediate, elongated region is typically formed again with a smaller width than the diameter of the right circular disk-like region.

2

frame

4

wheel

12

axle box

14

roller bearing

31 32

feather

35, 36

centerpiece

42

guide plate

44

sensor device

52

adapter

54

bolt

Claims (13)

Connection between the wheels ( 4 ) and a frame ( 2 ) of a bogie of a rail vehicle comprising the following features: - two springs ( 31 . 32 ) one each of the wheels ( 4 ), wherein at least one of the springs ( 31 . 32 ) comprises a rubber elastic spring element, - one with the frame ( 2 ) permanently connectable sensor device ( 44 ) for detecting at least one predeterminable part of a weight force that essentially emanates from a load borne by the bogie, and - an adapter ( 52 ), on the frame ( 2 ) is attachable, with a part of one of the springs ( 31 . 32 ) is firmly connectable and which for a load-transmitting abutment of a part of the other spring ( 31 . 32 ) on the sensor device ( 44 ) with a guide for guiding the part of the other spring ( 31 . 32 ) is formed in Federwegrichtung. A compound according to claim 1, wherein the guide is as in the spring travel direction through opening is formed. A compound according to any one of claims 1 or 2, wherein the part of the other spring ( 31 . 32 ) via a connectable with the part guide plate ( 42 ) on the sensor device ( 44 ) and the adapter ( 52 ) for guiding the guide plate ( 42 ) is trained. A compound according to any one of claims 1 to 3, wherein the adapter ( 52 ) with the frame ( 2 ) is formed weldable. A compound according to any one of claims 1 to 4, wherein the adapter ( 52 ) adapted to a standardized frame ( 2 ) it is. A compound according to any one of claims 1 to 5, wherein the adapter ( 52 ) is integrally formed. A compound according to any one of claims 1 to 6, wherein the adapter ( 52 ) for a predeterminable spacing and / or alignment of the main axes of the two springs ( 31 . 32 ) is formed to each other. A compound according to any one of claims 1 to 7, wherein the part of the one spring ( 31 . 32 ) with the adapter ( 52 ) and / or the part of the other spring ( 31 . 32 ) with the guide plate ( 42 ) via a bolt ( 54 ) are formed connectable. A compound according to any one of claims 1 to 8, wherein the sensor device ( 44 ) of a load balancing device of a brake system of the rail vehicle. A connection according to claim 9, wherein the sensor device ( 44 ) is designed to control a pressure reducer of the brake system. A compound according to any one of claims 1 to 10, wherein the bogie of type Y25. A compound according to any one of claims 1 to 11, wherein at least the spring ( 31 . 32 ) is formed with the rubber elastic spring element as a rubber spring. A compound according to any one of claims 1 to 12, wherein at least the spring ( 31 . 32 ) is formed with the rubber elastic spring element as a hydraulically damping, elastic spring.