EXPERIMENTAL RESEARCH OF PRECESSIONAL TRANSMISSIONS WITH MULTIPAIR CONVEX-CONCAVE GEARS: DATA ACQUISITIONS, EXPERIMENTAL SAMPLES AND RESULT

Maxim VACULENCO, Ion BODNARIUC, Oleg CIOBANU, Radu CIOBANU, Iulian MALCOCI, Nicolae TRIFAN, Dumitru VENGHER

Abstract


The paper presents aspects of experimental research on the functional characteristics of kinematic and low-power precessional transmissions with multi-pair convex-concave gears with straight and inclined teeth. The energy losses in the gears are investigated depending on the relative sliding with friction between the flanks of unitary or simultaneously multipair conjugated teeth, as well as the bearing capacity of the convex-concave contact of the teeth depending on the difference in flank curves, including starting moment and the torsional stiffness of the precessional gear. Gear teeth are manufactured from plastic by roll molding on CNC machine tools adapted to the Gleason system, as well as by additive 3D printing technologies. The teeth of the central and satellite wheels are made of various pairs of plastic-metal-plastic, metal-metal-metal, plastic-plastic-plastic materials. The parametric characteristics of kinematic gears samples and low-power transmissions, experimental stands for data acquisition and computerized processing are described, research results are analyzed. The comparative analysis of the functional characteristics of precession transmissions in relation to other mechanical transmissions is presented.

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References


Bostan, I. A. Precessionnye peredachi s mnogoparnym zacepleniem. Știința, Chișinău, 1991. 356 p. ISBN 5-376-01005-08.

Bostan, I. Transmisii Precesionale. Geometria, Cinematica și Portanța contactului. Vol. 2. Bons Offices, Chișinău, 2022. 667 p. ISBN 978-9975-87-978-1.

Bostan, Ion, Chisinau, MD; Bostan, Viorel, Chisinau, MD; Vaculenco, Maxim, Chisinau, MD: Deutsches Patent-und Markenamt; Zahnradubertragung mit Prazessions bewegung; DE 2120000799 U1 2022.11.03.

I. A. Бostan. Pretesionnaea zubceataia peredacia. SU 1455094 A1. MKI F 16 H 1/32. B.I. № 4. (1989).

Patent. Bostan I., Babaian I. Manufacturing procedure of the modified teeth of precessional gears. S.U. 1663875 A1.MCI B23 F9/06. (1988).

Bostan, V. Modele matematice în inginerie (Monografie). Chişinău, Bons Offices, 470 p., ISBN 978, 9975-80-831-6. (2014).

E. Wildhaber. Helical gearing. U.S. Patent nr. 1.601.750. (1926).

М. L. Novikov. Zubciatie peredaci, а tacje culacicovie mehanizmi s tocecnoi sistemoi zateplenia. Аvt. svid. SSSR № 109113. (1956)


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