METHOD AND DEVICE FOR DETERMINING THE LOCATION OF THE CENTER OF GRAVITY OF A LOADED RAILWAY CAR Russian patent published in 2022 - IPC G01G19/04 

FIELD: measuring technology.

SUBSTANCE: invention relates to weight measuring equipment and can be used in assessing the parameters of freight railcars, in particular determining their center of gravity. When implementing the method, the measurement is carried out during the movement of the car in the zone of sorting movements, and is based on the creation of a measuring unit for automatically determining the location of the center of gravity, which is an inset into the rail track of a concrete platform equal to the length of the car. On the concrete surface, made in the form of a reinforced concrete parallelepiped, there are four grooves with a cross section of 500×500 mm with strain gauges installed in the recesses, on which the supporting parts of the rail are located, strain gauges make it possible to measure the pressure of wheel pairs on free sections of rail tracks at 8 points (wheel-rail contact), their readings are automatically recorded and, after decoding, provide the necessary data on the position of the center of gravity (center of mass) of the loaded car. The device consists of a system for fixing the necessary position of the car when passing the points of contact “wheel-rail” corresponding to the position of the coincidence of these points with the points of location of strain gauges, which is achieved by triggering an LED system that fixes the position of the moving car at the time of the required position, when the points of contact “wheel-rail” coincide with the points of attachment of strain gauges at the points of deflection rails in areas of “sagging”; LED systems ensure the inclusion of data recording by 8 strain gauges, data processing and the formation of the necessary file.

EFFECT: reducing the risks of dynamic “bursts” of interaction between cars when moving with increased axle loads with increasing train speeds.

2 cl, 2 dwg