Моделювання динамічних навантажень в об’ємному гідроприводі стріли бурильно-кранової машини

Problem statement. Analysis of modern achievements in the field of hydraulic fluid power for use in drilling crane machines, in particular in the drive for raising and lowering the drilling boom. Goal. Increasing the technical level of v hydraulic fluid power of domestic drilling and crane machines based on wheeled tractors. Method. Analytical methods for static and dynamic calculation of the hydraulic drive of the boom of the drilling crane machine model BKM-2M. Modeling the influence of external load and the modulus of elasticity of the working fluid on oscillatory processes using the VisSim application software package. Results. The cycles of supplying the working fluid to the piston cavity and rod cavities, modeled in dynamic modes, corresponding to the technological cycles of raising the boom and its tilting to create a force on the drill during its rotation, respectively, are considered. Scientific novelty. For the first time, dynamic processes in the hydraulic drive of the drilling boom tilting at the loading modes of two parallel hydraulic cylinders are considered. Practical significance. The methods and results of calculations are recommended for use in creating hydraulic drives for technological equipment of road construction machines and tractor transmissions. The materials presented are helpful for specialists in the field of mechanical engineering, in particular the design of hydraulic fluid power for drilling crane machines, as well as in the educational process for specialists in the mechanical engineering profile who study hydraulic fluid power as a means of improving the technical level of various machines and mechanisms.