Method for adjusting the orientation of travelling wheel assembl

Railway rolling stock – Trucks – Radial

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B61F 500

Patent

active

056409109

ABSTRACT:
The string of vehicles travelling on rails includes bodies (2, 3, 4) articulated together and wheel assemblies (8 to 11), wherein the orientation of the wheels can be adjusted to be tangent to the rails. To this end, an adjusting device includes sensors (40), which make is possible to measure the relative angles (.beta.1, .beta.2) between the longitudinal axes (31) of the bodies. A calculating unit (41) is designed for determining for each unitary vehicle (8 to 11) the variable angle (.alpha.1, .alpha.2, .alpha.3, .alpha.4) between a direction perpendicular to the axes (37) of the wheels and the longitudinal axis (31) of the body concerned, from the values of the relative angles (.beta.1, .beta.2) measured and, preferably, in combination with the angular speed of rotation of the bodies around their vertical axis, measured with gyroscopic sensors provided on the bodies. An adjusting member in the form of a jack then adjusts the orientation of the wheels according to the variable angles calculated. Such an adjustment of the wheels makes it possible to orient precisely the wheels, under conditions of increased safety, while reducing the cost of vehicles travelling on railways, in particular of those having a very low floor.

REFERENCES:
patent: 4289075 (1981-09-01), Smith
patent: 4982671 (1991-01-01), Chollet et al.
patent: 5429056 (1995-07-01), Pees et al.

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