Proceedings of the 15th International Conference on Manufacturing Systems – ICMaS

Published by Editura Academiei Române, ISSN 1842-3183

Volume No. 1,  2006

"Politehnica" University of Bucharest, Machine and Manufacturing Systems Department

Bucharest, Romania, 26 – 27 October, 2006

Abstract: It is known that the kinematic chains include worm-gear drives, screw-nut mechanisms and pinion-rack drives. During the operation, these gear drives and mechanisms of the machine-tool deform under the load, having as result the manufacturing errors. The errors can’t be eliminated entirely, but their maximum values must be limited depending on the proposed aims. The paper presents some aspects regarding the achievement of a worm-gearing with improved performances, depending on the optimization criteria: medium rigidity criterion and rigidity variation criterion. In the case when the wormgearing tooth has a medium rigidity as high as possible, the goal is to ensure a deformation as small as possible and constant.

Ph.D. Daniela GHELASE, Assoc. Professor, "Dunãrea de Jos"

University of Galaþi, Faculty of Engineering, Brãila, E-mail:

Daniela.Ghelase@ugal.ro

Ph.D. Luiza DASCHIEVICI, Assoc. Professor, "Dunãrea de

Jos" University of Galaþi, Faculty of Engineering, Brãila,

E-mail: Daniela.Ghelase@ugal.ro

Ph.D. Ioana DIACONESCU, Assoc. Professor, "Dunãrea de

Jos" University of Galaþi, Faculty of Engineering, Brãila,

E-mail: Ioana.Diaconescu@ugal.ro