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Purpose: To carry out the transition from a cylindrical gear in which the centroids are congruent ellipses with centres of rotation in the foci, to a bevel gear on the basic of congruent spherical ellipses. Design/methodology/approach: Congruent ellipses with centres of rotation in the foci serve as centroids for the design of cylindrical gears with non-circular wheels. The article analytically shows that the analogues of ellipses on the plane - congruent spherical ellipses are the basis for the construction of the axoids of the corresponding bevel gears. An analogue of the centre-to-centre distance for ellipses in the plane is the angle between the axes of rotation of conical axoids. Findings: Based on the equality of the arcs of ellipses, the dependence of the angle of rotation of one axoid on the angle of rotation of another is found. Graphs of this dependence for separate cases are given. It is shown under what conditions the axes of axoids intersect at right angle. The parametric equations of spherical ellipses and corresponding axoids are given. They were used to construct spherical ellipses and corresponding conical axoids for different cases. For gears with right angle between the axes, separate positions of the axoids with different angles of their rotation around their axes are constructed. Practical implications: Spherical ellipses are directing curves for the construction of the corresponding conical axoids. Originality/value: The paper shows that congruent spherical ellipses act as centroids for the design of axoids of bevel gears. They roll one by one without sliding, rotating around axes that intersect in the centre of the sphere. To design such gears, it is important to know the interdependence between the geometric parameters, especially for common gears with a right angle between the axes.
Wydawca
Rocznik
Tom
Strony
13--18
Opis fizyczny
Bibliogr. 18 poz.
Twórcy
autor
- Department of Descriptive Geometry, Computer Graphics and Design, Faculty of Construction and Design, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
autor
- Department of Reliability of Equipment, Faculty of Construction and Design, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
autor
- Department of Reliability of Equipment, Faculty of Construction and Design, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
autor
- Department of Technical Service and Engineering Management named after M.P. Momotenka, Computer Graphics and Design, Mechanical and Technological Faculty, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
autor
- Department of Reliability of Equipment, Faculty of Construction and Design, National University of Life and Environmental Sciences of Ukraine, Kyiv, Ukraine
Bibliografia
- [1] F.L. Litvin, Theory of gears, Second Edition, Nauka, 1968 (in Russian).
- [2] V. Berezin, Spherical ellipse, Popular Science Physics and Mathematics Journal "Quantum" 2 (1978) 25.
- [3] V.M. Gusyatin, A.E. Gromenko, R. V. Sorokin, Method of spherical interpolation of triangulated surfaces, Proceedings of the 2nd International Scientific Conference “Modern information systems. Problems and Development Trends”, 2007, 495-496.
- [4] S.F. Pylypaka, I. Yu. Gryshchenko, Т.А. Kresan, Modeling of strips of deployable surfaces tangent to the surface of the sphere, Applied Questions of Mathemati-cal Modeling. Kherson: OLDI-PLUS 1 (2018) 81-88.
- [5] G.A. Golub, V.V. Chuba, O.A. Marus, Determination of rolling radius of self-propelled machines' wheels, INMATEH - Agricultural Engineering 57/1 (2019) 81-90.
- [6] T. Kresan, S. Pylypaka, Z. Ruzhylo. I. Rogovskii, O. Trokhaniak, External rolling of a polygon on closed curvilinear profile, Acta Polytechnica 60/4 (2020) 313- 317. DOI: https://doi.org/10.14311/AP.2020.60.0313
- [7] V. Bulgakov, S. Pilipaka, V. Adamchuk, J. Olt, Theory of motion of a material point along a plane curve with a constant pressure and velocity, Agronomy Research 12/3 (2014) 937-948.
- [8] T.A. Kresan, S.F. Pylypaka, I.Yu. Gryshchenko, V.М. Babka, A special case of congruent centroids of non-circular wheels formed by arcs of a logarithmic spiral, Applied Geometry and Engineering Graphics 98 (2020) 84-93. DOI: https://doi.org/10.32347/0131- 579x.2020.98.84-93
- [9] B. Laczik, Design and Manufacturing of Non-Circular Gears by Given Transfer Function. Available online: http://www.hexagon.de/pdf/noncgear.pdf
- [10] D. Mundo, G.A. Danneli, Use of Non-Circular Gears in Pressing Machine Driving Systems. Available online: http://www.wseas.us/e-library/conferences/udine2004/papers/483-172.pdf
- [11] V.V. Kovregin, I.V. Molovik, Analytical description of centroids of non-circular gears, Proceedings of the Tavriya State Agrotechnological University. Applied Geometry and Engineering Graphics 49/4 (2011) 125- 129.
- [12] Ya.P. Legeta, Description and construction of coupled centroid of non-circular gears, Modern Problems of Modelling 3 (2014) 87-92.
- [13] Ya.P. Legeta, O.V. Shoman, Geometric modeling of centroids of non-circular gears by transfer function, Geometric Modeling and Information Technology. Scientific Journal of the Mykolaiv National University named after V.O. Sukhomlinsky 2 (2016) 59-63.
- [14] A.P. Padalko, N.A. Padalko, Tooth gear with non-circular wheel, Theory of Mechanisms and Machines 11/2 (2013) 89-96.
- [15] A.N. Sobolev, A.Ya. Nekrasov, M.O. Arbuzov, Modeling of mechanical gears with non-circular gears, Bulletin of Moscow State University "Stankin" 40/1 (2017) 48-51.
- [16] F. Taş, K. İlarslan, A New Approach to Design the Ruled Surface, International Journal of Geometric Methods in Modern Physics 16/6 (2019) 1950093. DOI: https://doi.org/10.1142/S0219887819500932
- [17] Ö.G. Yildiz, M. Akyiğit, M. Tosun, On the trajectory ruled surfaces of framed base curves in the Euclidean space, Mathematical Methods in the Applied Sciences 44/9 (2021) 7463-7470. DOI: https://doi.org/10.1002/mma.6267
- [18] J. Wallner, Ruled surfaces and developable surfaces. Available online: http://www.geometrie.tugraz.at/wallner/kurs.pdf
Uwagi
PL
Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-81f5efe9-acff-4745-9cb7-e4aaae28b925