DEVICE FOR ERROR MONITORING OF CHASSIS COMPONENTS OF RAIL VEHICLES

• US 20100116041A1
• Filed: 05/16/2008
• Published: 05/13/2010
• Est. Priority Date: 05/22/2007
• Status: Active Grant

• Current Assignee: Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH (Estate of Heinz Hermann Thiele)
• Original Assignee: Knorr-Bremse Systeme FüR Schienenfahrzeuge GmbH (Estate of Heinz Hermann Thiele)
• Inventors: Mayer, Reinhold, Herden, Marc Oliver, Schuhmacher, Johannes, Wach, Jörg Johannes, Friesen, Ulf
• Granted Patent: US 8,276,440 B2
• Time in Patent Office: Days
• US Class Current: 73/117.10
• CPC Class Codes: B61K 9/00 Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
• CPC Class Codes: B61K 9/04 Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault

Abstract

The invention relates to a device for the error monitoring of chassis components of rail vehicles, including at least one vibration sensor. According to one embodiment of the invention, at least one vibration sensor is arranged on a bogie frame or on a wheel set bearing of an axis of a bogie of the rail vehicle such that the detection direction thereof has a component in the moving direction (x-direction) or a component perpendicular to the moving direction (y-direction) and at the same time a component parallel to the vertical axis (z-direction) of the rail vehicle.

Claims

1. A device for monitoring undercarriage components of rail vehicles for faults, containing at least one vibration pickup wherein either

a) at least one vibration pickup is arranged on a bogie frame or on a wheel set bearing of an axle of a bogie of the rail vehicle in such a way that its detection direction has a component in the x axis direction of travel or a component perpendicular to the y axis direction of travel and at the same time a component parallel to the vertical axis of the rail vehicle, or

b) vibration pickups assigned to wheel set bearings of the axle are provided, wherein one vibration pickup is arranged on the wheel set bearing of the axle in such a way that its detection direction is parallel to the x axis direction of travel, and a second vibration pickup is arranged on the other wheel set bearing of the axle in such a way that its detection direction is parallel to the vertical axis of the rail vehicle.

2. The device of claim 1, variant a), wherein a single vibration pickup is arranged on the bogie frame of the bogie.

3. The device of claim 2, wherein the detection direction of the vibration pickup is located in a plane perpendicular to the axle of the bogie, and has an angle in a range from 10 to 80 degrees in relation to the vertical axis and in relation to the x axis direction of travel.

4. The device of claim 2, wherein the detection direction of the at least one vibration pickup is located in a plane perpendicular to the x axis direction of travel and has an angle in a range from 10 to 80 degrees in relation to the vertical axis and in relation to the y axis direction of travel.

5. The device of claim 1, variant a), wherein the at least one vibration pickup is arranged on just one wheel set bearing of the wheel set bearings of an axle of the bogie.

6. The device of claim 5, wherein characterized in that the detection direction of the vibration pickup is located in a plane perpendicular to the axle and has an angle in a range from 10 to 80 degrees in relation to the vertical axis and in relation to the x axis direction which is arranged parallel to the direction of travel.

7. The device of claim 1, variant b) wherein a vibration pickup is provided for each wheel set bearing of the axle.

8. The device of claim 7, wherein the vibration pickups (28″

) are arranged on the wheel set bearings of the axles of the bogie in such a way that, viewed in the x axis direction of travel, the detection directions of the vibration pickups on each side of the vehicle alternate.

9. The device of claim 1, wherein at least one vibration pickup is embodied as an acceleration sensor and is integrated, together with at least one speed sensor for measuring the instantaneous wheel speed and/or with a temperature sensor for measuring the instantaneous bearing temperature of a wheel set bearing, in a combination sensor.

10. The device of claim 1, wherein the at least one electronic evaluation unit of the device is an integral component of an anti-skid and/or brake control system of the rail vehicle.

11. The device claim 1, wherein at least two of the vibration pickups redundant.