Authors: N.M. Suslov, D.N. Suslov, S.A. Chernukhin, I.Yu. Ivanov

Title of the article: Mathematical modeling of the dragline travel mechanism with sliding supports

Year: 2021, Issue: 5, Pages: 35-40

Branch of knowledge: 05.05.06 Mining machines

Index UDK: 621.879: 62-82

DOI: 10.26730/1816-4528-2021-5-35-40

Abstract: The article analyzes a three-bearing walking mechanism with a hydraulic drive used to move dragline excavators. The analysis revealed the shortcomings of the existing walking mechanism. As an alternative to the used three-bearing walking mechanism, a three-bearing walking mechanism with sliding bearings is presented. The mechanism equipped with sliding supports eliminates the main disadvantages of the used three-bearing walking mechanism. Further, calculations were made based on the results, a first-order formula was derived, which allows creating a mathematical model of a three-bearing walking mechanism with sliding supports. The mathematical model of the walking mechanism created in the MATLAB Simulink software environment, on the basis of the above calculations, makes it possible to determine the speed of movement of the support shoes at any time, which makes it possible to use this mathematical model to design an upgraded walking mechanism. The presented developments on the design of this mechanism allow them to be used in the development of an automatic control system for the movement of a dragline excavator equipped with a three-bearing walking mechanism with sliding supports.

Key words: Hydraulic drive MATLAB Simulink dragline three-bearing walking mechanism differential equations in Cauchy form simulation

Receiving date: 29.09.2021

Approval date: 26.10.2021

Publication date: 19.11.2021

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