Calculating Design and Mode Parameters of Mine Hydraulic Excavator Working Equipment Mechanisms
Teliman I.V. Malybayev N.S. Bezkorovainy P.G. Ibrayeva N.R. Komissarov A.P.
2022Abylkas Saginov Karaganda Technical University
Material and Mechanical Engineering Technology
2022#2022Issue 119 - 26 pp.
It is shown that the main executive mechanisms of the mine hydraulic excavator (mechanisms for turning the boom, turning the handle and turning the bucket) are hydro-mechanical units in which the engines (hydraulic cylinders) are an integral part of the lever-hydraulic mechanisms. The presence of a kinematic connection between the engine (hydraulic cylinder rod) and the members of the lever-hydraulic mechanism determines certain relations between the parameters of the engine and the power parameters implemented on the driven member (boom, handle and bucket): kinematic and dynamic transfer functions. Based on a simulation model of the main mechanisms functioning, expressions for definition of transfer functions have been obtained. It has been established that there are rational values of the dynamic transfer functions of the main mechanisms at which the correspondence between the energy-power parameters realized at the driven members and the mode of loading of the driven members is achieved. Synthesizing the design schemes of the main mechanisms with rational values of dynamic transfer functions will allow excluding an overload of engines and increasing the energy efficiency of the hydraulic excavator functioning.
kinematic and dynamic transfer functions of mechanisms , main executive mechanisms , mine hydraulic excavator
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Department Technological equipment, mechanical engineering and standardization, Karaganda Technical University, Karaganda, Kazakhstan
Ural State Mining University, Ekaterinburg, Russian Federation
Department Technological equipment
Ural State Mining University
10 лет помогаем публиковать статьи Международный издатель
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