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

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Category: Geotechnical and mining mechanical engineering, machine building

Last Updated on 10 November 2019

Published on 26 October 2019

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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.

1. Todorov, T. S. (2015). Synthesis of Four Bar Mechanisms as Functon Generators by Freudenstein–Chebyshev. Journal of Robotics and Mechanical Engineering Research, 1(1). DOI: 10.24218/jrmer.2015.01.

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.

3. Cvetković, I., Stojičevic, M., Popkonstantinović, B., & Cvet­ković, D. (2018). Сlassification, geometrical and kinematic analysis of four-bar linkages sinteza. In International scientific conference on information technology and data related research (pp. 261-266). DOI: 10.15308/Sinteza-2018- 261-266.

4. Sleesongsom, S., & Bureerat, S. (2018). Optimal Synthesis of Four-Bar Linkage Path Generation through Evolutionary Computation with a Novel Constraint Handling Technique. Computational Intelligence and Neuroscience, 2018. DOI: 10.1155/2018/5462563.

5. Tultayev, B., Balbayev, Gm., & Zhauyt, A. (2017). A Kinematic Analysis of Flat Leverage Mechanism of the Fourth Class for Manipulators. In IOP Conference Series: Materials Science and Engineering, 230. DOI: 10.1088/1757-899X/230/ 1/012047.

6. Koshel, S., & Koshel, G. (2016). Analysis of planar mechanisms of higher classes with movable closed loop circuit. Herald Of Khmelnytskyi National University. Technical sciences, 4, 15-19.

7. Koshel, S., & Koshel, G. (2018). Аnalysis of fourth class plane mechanisms with structural groups of links of the second order. Odes’kyi Politechnichnyi Universytet. Pratsi, 1(54), 12-17.

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.

10. Ziborov, K., & Fedoriachenko, S. (2014). The frictional work in pair wheel-rail in case of different structural scheme of mining rolling stock. Progressive Technologies of Coal, Coalbed Methane, and Ores Mining (pp. 517-521). DOI: 10.1201/b17547.

11. Iljin, S., Samusya, V., Iljina, I., & Iljina, S. (2015). Influence of dynamic processes in mine winding plants on operating safety of shafts with broken geometry. New Developments in Mining Engineering 2015: Theoretical and Practical Solutions of Mineral Resources Mining, 425-429.

12. Belmas, I., & Kolosov, D. (2011). The stress-strain state of the stepped rubber-rope cable in bobbin of winding. Technical and Geoinformation Systems in Mining: School of Underground Mining, 2011, 211-214. Retrieved from https://www.researchgate.net/publication/330310760_The_stress strain_state_of_the_stepped_rubber rope_cable_in_bobbin_of_winding 

13. Kolosov, D., Dolgov, O., & Kolosov, A. (2014). Analytical determination of stress-strain state of rope caused by the transmission of the drive drum traction. Progressive Technologies of Coal, Coalbed Methane, and Ores Mining,  499-504.

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