Abstract
The paper gives a thorough comparative evaluation of two close worm-type mechanisms – worm and spiroid gears – provided they have equal dimensions. Evaluation is made in accordance with layout, geometric and kinematic, force and accuracy characteristics. Quantitative parameters of the spiroid gearing as compared to the worm one are obtained. In particular, numerical analysis of a spiroid gear gave the backgrounds for applying steel as the material of gearwheel rims; its decreased loading in tooth pairs (increased static strength of the gear) and lower sensitivity to errors of the gearwheel axial arrangement are shown; and its preferability of application for small gear ratios is substantiated. Better conditions of providing smooth operation are specific for all groups of parameters: geometry and kinematics, forces, stress, and accuracy. A worm gear is featured by comparatively low contact stresses, minor forces in meshing, and less sensitivity to errors of the worm pitch. The obtained results are, therefore, contradictory; they indicate that each of these gears can be preferable in specific design, production and operation conditions. It is also shown that contact localization provides more stable accuracy characteristics that are less dependent on the degree of mounting errors in most cases.
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References
Saari, O.: The mathematical background of spiroid gears. Industrial mathematics series. Detroit Wayne State University press, Detroit, USA, pp. 131-144 (1956).
Nelson, W.: Spiroid gearing. The American society of mechanical engineers: Paper N57-A-162. USA (1957).
Boloş, V.: Achievements of study concerning worm gears. Scientific Bulletin of the „Petru Maior” University of Tîrgu Mureş, vol. 7 (XXIV), 2 (2010).
Georgiev, A., Goldfarb, V.: Aspects of Geometric Theory and Investigation of Sprioid Gears with Cylindrical Pinion. Mechanika Machine, Moscow, Nauka, pp. 70–80 (1972) (in Russian).
Goldfarb, V.: What we know about spiroid gearing. In: Proceedings of the International Conference on Mechanical Transmissions, pp.19-26. Science Press, China, Vol. 1 (2006).
Goldfarb, V., Trubachov, E.: Development and application of computer-aided design and tooth contact analysis of spiral-type gears with cylindrical worms. In: Proceedings of ASME International Power Transmission and Gearing Conference. Chicago, USA (2003).
Lagutin, S.: Local Synthesis of General Type Worm gearing and its Applications. In: Proceedings of the 4th World Congress on Gearing and Power Transmissions, Vol.1, pp.501-506. Paris (1999).
http://elevation.wikia.com/wiki/Otis_2000 (last accessed 06.11.18).
Litvin, F.: Theory of Gearing. Moskow, Nauka (1968) (in Russian).
Airapetov, E.: State and prospects of development of methods for analyzing the loading and strength of gears. Izhevsk-Moscow, ISTU (2000) (in Russian).
Nakhatakyan, F: Contact deformation of finite bodies initially in linear contact. Russian Engineering Research, Vol. 34, Issue 5, pp. 277–280 (2014)
Goldfarb, V., Trubachov, E.: Model of spiroid gearing under action of errors. In: Proceedings on the International Conference on Gears, pp.197-209. Munich, Germany (2002).
Sandler, A., Lagutin, S.: Technique of Profile Localization of Bearing Contact in Worm Gears. In: Proceedings of the International Conference on Gears, pp. 1233-1244. Munich, Germany (2010).
Goldfarb, V., Glavatskikh, D., Trubachev, E. et al: Spiroid gearboxes of pipeline valves. Moscow, Veche (2011).
Müller, R., Schirmer, L.: New tolerance concepts for the realization of steel-only worm gears. In: Proceedings on the International Conference on Gears. Munich, Germany (2017).
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Goldfarb, V., Trubachev, E., Pushkareva, T., Savelyeva, T. (2019). Comparative investigation of worm and spiroid gears with cylindrical worms. In: Uhl, T. (eds) Advances in Mechanism and Machine Science. IFToMM WC 2019. Mechanisms and Machine Science, vol 73. Springer, Cham. https://doi.org/10.1007/978-3-030-20131-9_92
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DOI: https://doi.org/10.1007/978-3-030-20131-9_92
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