Kinematic analysis and synthesis of cutter movement of slotting machine
DOI:
https://doi.org/10.31891/2079-1372-2022-104-2-87-93Keywords:
linkage mechanisms, optimization, synthesis, kinematic analysis, law of motion, camsAbstract
The kinematic characteristics of the links and individual points of the mechanism are determined by the method of closed geometric contours and the method of designing plans. The forces of interaction between the links of the mechanism are determined by the method of kinetostatics, and the balancing moment by considering the dynamic equilibrium of the crank and the method of power balance. The drawbacks of the structural scheme of the mechanism are revealed and the ways of their elimination are offered.
The results of research are presented in the form of graphical dependences of the kinematic parameters of the cutter, reactions or hodographs of forces in kinematic pairs. The moments of resistance forces and inertia forces are determined and the dynamic and mathematical models of the movement of the mechanism are constructed. The technology of determining the power of the electric motor is shown, and its stable area of operation is approximated by a straight line.
Kinematic synthesis was performed and a modernized mechanism was obtained in which the cutter can move according to a predetermined law, in particular, without soft shocks at the boundaries of the kinematic cycle and with quasi-constant speed (error up to 5%) in the middle of the kinematic cycle
References
2. Kinytskyi Ya. T. (2002) Teoriia mekhanizmiv i mashyn [Theory of Mechanisms and Machines], Naukova Dumka, Kyiv, 660 p.
3. Kryzhanivskyi Ye. I., Malko B. D., Senchishak V. M. (1996) Kursove proektuvannia z teorii mekhanizmiv i mashyn: navch. posibnyk [Course projecting on Theory of Mechanisms and Machines: textbook], Ivano-Frankivsk, 357 p.
4. Pasika V. R., Heletii V. M. (2019) Analitychnyi metod u doslidzhenni vazhilnykh mekhanizmiv II klasu [Analytical method in researching of linkage mechanisms of the 2nd class], Lviv-Drohobych "POSVIT", 2019. 142 p.
5. Pasika V.R., Koruniak P.S., Zokhniuk V.V., Roman D.A. (2021) Dynamichne analizuvannia mekhanizmu dovbalnoho verstatu [Dynamic analysis of slotting machine]. Herald of Lviv Agrarian University. Agroengineering researches, #25, P. 42.49.
6. Pasika V.R., Heletii V.M., Solohub B.V. (2021) Kinematychne syntezuvannia zakoniv periodychnoho rukhu [Kinematic synthesis of periodical laws of motion] : monography, Lviv, Levada, 123 p.
7. Pasika V.R. (2006) Syntez optymalnykh zakoniv periodychnoho rukhu [Synthesis of optimal laws of motion]. Scientific notes of Ukrainian Academy of printing, #9, P. 38-44.
8. Romansevych Yu. O., Rybalko V. M., Matukhno N. V. (2015) Vybir elektrodvyhuniv dlia mashyn i mekhanizmiv, yaki zabezpechuiut vyrobnychi protsesy u silskomu i lisovomu hospodarstvi [Selection of electric motors for machines and mechanisms that provide production processes in agriculture and forestry], Kyiv, 75 p.
9. Uicker J., Gordon R. Pennock, Shigley J. Theory of Machines and Mechanisms. New York, Oxford University Press, 2017, 977 p.
10. Advances in Mechanism Design II: Proceedings of the XII International Conference on the Theory of Machines and Mechanisms (ed. J. Beran, M. Bilek, P. Zabka), Springer International Publishing, 2017.
11. Kuang-Hua Chang. Motion Simulation and Mechanism Design with SOLIDWORKS Motion 2021. SDC Publications, 2021, 220 p.
