System for measuring of rail vehicle wheel set approach angle in a track

摘要

The system is formed on the frame (2) of the chassis or bogie of a rail vehicle suspension arranged two laser optical sensor (8) for sensing the head rail (1). A laser optical sensor (8) is arranged in front of the wheel of the first wheel (3) in the direction of movement of the rail vehicle and the second optical sensor (8) is disposed at about the second wheelset (4) in the direction of movement of the rail vehicle, on the same side of the chassis. From the measured profile rail (1) is then the calculation program evaluated their mutual lateral displacement dy. Z displacement dy and the known distance between the two laser optical sensor (8) in the longitudinal direction of the track (1) dx is evaluated incidence angle of the frame (2) of the chassis according to the relationship .alpha. = Arctan (dy / dx). The system is complemented by the sensor (14) for measuring the movement of the longitudinal movements of dx1, dx2 in the management of the first wheel (3) is made possible from the outside of each wheel of the first wheel (3), on the wheelset or, similarly to the second wheelset (4). The distance between the sensors (14) from one another is determined by the lateral spacing of 2 watts For longitudinal movement dx1 and dx2 and the lateral spacing is 2 watts evaluated angle wheelset relative to the frame (2) of the chassis according to the relationship .alpha. = Arctan [(dx1 + dx2) / (2W)]. Angle of attack wheelset is evaluated as the sum of the observed angle of attack of the frame (2) chassis in track and wheel to the frame (2) of the chassis according to the relation .beta. = .alpha. + .gama. + Arcsin (a / R), where a is the half of the bogie wheel base, R is the radius of the travel arc. Each laser optical sensor (8) is arranged in a resilient cover (7) which is spring-mounted on the frame (2) of the chassis in the holder (6), fixed bracket (5) to the frame (2) of the chassis, which is spring-loaded by a wheelset ( 3) or wheelset (4). Suspension shell (7) from the holder (6) is realized by at least one suspension assembly (11) which is formed by the suspension (10), a connecting element (12) and connecting elements (13).