Overweight loading detection method for rail wagon

Abstract

The invention relates to an overweight loading detection method for a rail wagon, which is based on a loading weight formula of P=ROUND (K-(U*((ABS(S)+B*10)))*F*4/1000, 2), wherein F is the average height difference between an empty wagon and an loaded wagon, and F=G1-G2; S is differential pressure between solid height and calculated height, and S=F-D; Round () is an intercepted function; g(x)=U*((abs(s)+B*10)), wherein g(x) is a stiffness adjustment function, U=SIGH(S), SIGH() obtains a plus-minus sign function, B={0.765, 0.965, 1.965, 0.862, 0.76, 0.765, 0.765}, D={33, 33, 31, 33, 35, 31, 32}, B is a constant determined by a regression analysis method, D is a theoretical spring solid value containing friction coefficients, B and D correspond to K value at the same time, K={493.5, 500, 510, 490, 500, 536.5, 494}; G1=(a+b+c+d)/4, wherein a, b, c and d are spring nest height measured values for the empty wagon; and G2=(a1+b1+c1+d1)/4, wherein a1, b1, c1 and d1 are spring nest height measured values under the friction with wedge and the load when the wagon is heavily loaded.

Description

technical field [0001] The invention relates to a method for detecting overweight loading of railway freight cars, in particular to a method for detecting the loaded weight of the freight cars by detecting the deflection of load-bearing spring groups and damping springs under the bolster of the railway freight car and the wear plate between the bogie and the bolster. Background technique [0002] With the rapid development of our country's national economy, the prosperity of commerce and the improvement of people's living standards, the rapid development of the transportation industry has been promoted, and the pressure on railway freight is increasing. The two basic problems to be solved by the current railway freight are to realize safe transportation and improve freight efficiency, and overweight or unbalanced load is one of the key issues affecting safe operation. Therefore, railway freight management personnel should carry out overweight and unbalanced load detection on...

AI Technical Summary

Problems solved by technology

One is visual inspection, that is, managers use their eyes to observe the deflection of the bogie spring group, and then use their own experience to estimate the load capacity of each carriage and whether it is unbalanced. The second is to use a jack to lift up the eight wheels of each carriage, and then use a tonnage meter to measure the load capacity of each carriage.

Although this method can achieve measurement accuracy, the operation is complicated, the labor intensity is high, and the detection process takes a long time, which especially affects the efficiency of railway freight.

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