Geometric measuring system GEOPAR

opticallaserautomatic

The system is designed for making automatic measurement of 27 geometric parameters of wheel pairs of wagons in the course of incoming and outgoing inspections carried out in railcar/wheel shops, wagon depots and wheelpair repair and gathering workshops. Methods of control Measurement of all parameters is performed by means of noncontact techniques during one revolution of a wheel pair fixed to rotate on centres. Rolling surface contour and wheel dimensions are measured by using LDE2D laser scanners. Precision measurements of axle journal diameters are made by means of LCE optical micrometers. Other parameters are measured with LDE-HS triangulation laser sensors. Parameters under control Wheel parameters: out-of-roundness, deviation of roll surface countour from desired profile, wheel flange parameters, wheel tread width and thickness, defects on rolling surface, and wheel separation distance. Axle journal parameters: average diameters underneath the first and second bearings, out-of-roundness and taper. Axle parameters: diameters and ovality of pre-wheel-seat parts, diameters of wheal seats and middle parts of axle