Authors: K.B. Kyzyrov, A.A. Mitusov, V.L. Isayev, O.S. Reshetnikova

Title of the article: To the issue of optimization of working cycles of hydrostatic impact mechanisms

Year: 2019, Issue: 1, Pages: 20-25

Index UDK: [532.5+621.225] (075.8)

DOI: 10.26730/1816-4528-2019-1-20-25

Abstract: The article presents design studies, the formulation of which is due to the specific features of the creation of hydrostatic impact mechanisms in accordance with the implementation of the calendar plan of the grant financing theme “Creation and study of a hydraulic impact mechanism for mining and construction works” commissioned by the Ministry of Education and Science of the Republic of Kazakhstan for 2018 -2020 years. The article contains the solution of the problem of determining the parameters of the ideal control and movement law of the striker of hydrostatic mechanism with two controlled chambers, that allows to determine the limiting capabilities of hydraulic impact mechanisms according to the accepted optimization criteria and limitations. Solving the equation of movement of the striker in a closed working cycle made it possible to establish the dependencies of the constraints, the parameters of the striker control and movement on the components of impact power, the rebound coefficient and the ratio of forces in the idle and working chambers. Since the impact power is set, and the rebound coefficient is an uncontrolled parameter, the task has been reduced to determining the ratio of the efforts of the idle and working chambers corresponding to the minimum constraints. As a result, the parameters of the ideal striker movement law are defined for the structure with two controllable chambers.

Key words: optimization hydraulic hammer impact energy striker objective function

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