SU1136026A1 - Method of weighing railway cars in motion - Google Patents

Abstract

CONSTRUCTION OF CARRIAGES IN MOTION, including the movement of cars along a weight platform located on a horizontal section of the track, recognition of the type of cars, their weighing and integration of signals from converters. masses, characterized in that, in order to reduce the error caused by the uneven movement of cars, the weighing time and the actual speed of movement of each axle or truck carriage from the beginning of its movement on the weighing platform are measured, and t amendment calculated by the formula, U, U & amp & t Ch1n- 3 i. | H Tj I where where dg is the correction value, m is the measured value of the car’s mass, i -h is the excess of the center of gravity of the car over the axle level (L cuienoK, the base of the car, With the speed of the J-th axis, respectively venno at the beginning and end of the weighing, the weighing T.- J-th axis, the number of axles of the car, the acceleration of earth n attraction:. smiling

Description

The invention relates to car building, in particular to a weight measuring technique and can be used to weigh cars in motion without uncoupling trains.

A known method of weighing cars in motion, which includes moving cars first on a horizontal platform located on a horizontal section of the track, and then along a section of the track having an artificial slope from the scales, recognizes the type of car, weighs it, and integrates the signals from the mass converters [1].

However, the implementation of the method requires the creation of a special profiled path, which is not technically and economically feasible.

Closest to the proposed technical essence is a method of weighing cars in motion without uncoupling the train, which consists in moving the train at a constant speed and determining the mass of each car [2 j.

However, the practical implementation of the known method is practically impossible, and the resulting fluctuations in speed affect the accuracy of weighing.

The purpose of the invention is to reduce the error of weighing cars in motion without uncoupling trains.

This goal is achieved by the fact that according to the method, which includes the movement of wagons located horizontally. section of the track to the weighing platform, recognition of the type of wagon, their weighing and integration of signals from mass converters, additionally measure the weighing time and the actual speed of each axis or wagon of the wagon from the beginning to the end of its movement along the weighing platform, and then to the value measured on the scales the wagon masses are corrected by the formula im' — r- [ΣΙ —-—- Σ. —-— where in is the correction value, m is the measured value of the mass * of the car, h is the excess of the center of gravity of the car over the level of the axles of the couplings,

L is the base of the car, ^V <i ', ¼ “is the speed of the j-th axis, respectively, at the beginning and at the end of the weighing,

Tj is the weighing time of the jth axis, η is the number of axles of the car, g is the acceleration of gravity.

The method of weighing cars in motion is as follows.

Cars connected to the train are moved along a weight platform located on a horizontal section of the track, the car is weighed, the time of weighing each axle of the car is measured from the beginning to the end of its movement on the weight platform, the type of car is recognized and its base is calculated, and the excess of the center of gravity of the car is determined above the level of the axles of the couplers, and then from the weight of the carriage measured on the scales, the obtained correction is subtracted. The amendment can be used both for general and for weighting wagons. In the latter case, the speed differences and the time of weighing the axes of each trolley are the same and must be taken out of the signs of the corresponding amounts.

To implement the method, the signals of the load cells are integrated, stored and summed up after the end of the weighing of each car, and at the beginning and end of the movement of each axis (trolley) along the weight platform, a 4Q measurement of its speed is carried out. Using the number of axles of the car, the average value of the base and the average value of the excess of the center of gravity of each car over the transaction level are determined, and the speed .g by differentiating the current reaction coordinate of the left and right groups of sensors, respectively, when rolling the car axes.

'Thus, the proposed method for weighing moving cars makes it possible to increase the accuracy of weighing by taking into account the actual speed of the cars by introducing an additional correction to the mass value measured on the balance.

Claims (1)

METHOD FOR WEIGHING WAGONS IN TRAFFIC, including moving cars along a weighing platform located on a horizontal section of the track, recognizing the type of cars, weighing them and integrating signals from converters, mass, characterized in that, in order to reduce the error caused by the uneven movement of cars, additionally measure the time of weighing and the actual speed of each axis or carriage of the car from the beginning of the search end of its movement on the weighing platform, and the weight of the car is corrected and calculated by the formula where 4m - correction amount, m - measured value of the mass of the car, d h - excess ® center of gravity of the car above the level of the axes of couplers, L is the base of the car, - the speed of the J-th axis, respectively, at the beginning and at the end of the weighing, Tj is the weighing time of the J-th axis, n is the number of axles of the car, g is the acceleration of gravity. SU ... 1136026>