METHOD OF CALCULATING THE PARAMETERS OF THE STRESSED AND DEFORMED STATE OF CRANE SCALE PLATES

Abstract

The article shows that the improvement of technological processes of metallurgical production, which aims to improve the quality of metal structures, increase the yield of suitable product, stabilize its parameters, is not possible without a balanced accounting system of raw materials, semi-finished products and other cargo in all areas.

In the conditions of fast-moving processes of mass continuous production with an extensive network of cargo flows, electronic-tensometric weighing complexes are becoming more and more common, which make it possible to fully automate the process of technological weighing, ensuring documented registration of its results, increasing the objectivity of weight information.

The analysis of design features of lifting mechanisms of cranes became the basis for the development of proposals for the installation of the load-receiving unit of crane scales for automatic determination of the mass of liquid cast iron in the pouring-bucket section of the foundry shop. Based on the developed methodology and calculations of the parameters of the pressure base plates of the load-receiving unit, recommendations for optimizing the design of the plates, locations and number of sensors are issued.

The data obtained as a result of the calculations and experimental studies confirm the validity of the hypothesis, which was the basis of the method of calculating the slab of the load-receiving unit, which was that the calculation of slabs in the form of a beam on two hinged supports in the same plane does not reproduce the real process of slab bending in the space that passes as a result of the loading of the load-receiving unit in the built-in crane scales.

The aim of the work is to develop a new method for calculating the load bearing plates of crane scales, thanks to which it will be possible to determine the parameters of the stress-strain state of the load bearing plate under the influence of the main types of mechanical loads that affect the design of the weighing device in operation, which will lead to a decrease in the mass measurement error and thereby will optimize the cost of related materials in foundry technology and improve the quality of the final product.