Substantiation of rational drive parameters for reliable operation of heavy-loaded mechanisms

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Authors:

I.M.Matsyuk, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0002-0861-0933, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

E.М.Shlyahov, orcid.org/0000-0001-5983-9853, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O.I.Yehurnov, Cand. Sc. (Tech.), Ana-Tems Ltd, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract:

Purpose. To evaluate the influence of driven crank parameters on the location of different sets of a mechanism with the fourth-class structural group.

Methodology. A theoretical study on the influence of the input crank parameters on the positioning of different sets of the mechanism of a double-jaw crushing machine using the Mathcad software was carried out.

Findings. It is shown that:

- the center of rotation and the length of the crank in the fourth-class mechanism should be positioned in a certain area;

- the choice of specific positioning of the crank can eliminate the dangerous proximity of two adjacent sets of the mechanisms of the fourth-class structural group.

Originality. An algorithm of defining a zone of positioning the rotational center and length of a crank is determined for plain mechanisms of the fourth-class structural group. It has also been found that probability of spontaneous transition from one assembly to another closely-spaced assembly in heavy-loaded mechanisms can be reduced significantly by choosing the appropriate rotational center of a crank.

Practical value. An algorithm of actions is proposed, which makes it possible to choose an assembly which ensures its good functioning during the synthesis of a plain heavy loaded mechanism of the fourth class.

References.

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2. Jaiswal, A., & Jawale, H. P. (2018). Synthesis and optimization of four bar mechanism with six design parameters. In Material Science and Engineering with Advanced Research Journal. Proceedings of the First International Conference on Design, Materials and Manufacture, 1943(1). DOI: 10.1063/1.5029590.

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8. Matsyuk, I. N., Shlyahov, E. М., & Yehurnov, O. I. (2018). Some aspects of synthesis of linkage of complex structures. Naukovyi Visnyk Natsionalnohо Hirnychoho Universytetu, 3, 57-63. DOI: 10.29202/nvngu/2018-3/14.

9. Matsyuk, I. N., Shlyahov, E. М., & Yehurnov, O. I. (2019). On applying high-class mechanisms of heavy-loaded machines. Naukovyi Visnyk Natsionalnohо Hirnychoho Universytetu, 3, 68-73. DOI: 10.29202/nvngu/2019-3/6.

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ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.

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