Design and Prototyping of Miniaturized Straight Bevel Gears for Biomedical Applications

Machines

PasqualeFrancesco Greco¹  Guido Danieli¹  Antonio Acinapura²  Domenico Mundo²  Giuseppe Carbone²  Gionata Fragomeni³ 

[1] Calabrian High Tech—CHT S.r.l., 87036 Rende (CS), Italy;DIMEG, University of Calabria, 87036 Rende (CS), Italy;Magna Graecia University of Catanzaro, 88100 Germaneto (CZ), Italy;

关键词: bevel gears;    gear design;    Tredgold;    numerical simulations;   

DOI  :  10.3390/machines7020038

来源: DOAJ

【 摘 要 】

This paper presents a semi-automated design algorithm for computing straight bevel gear involute profiles. The proposed formulation is based on the Tredgold approximation method. It allows the design of a pair of bevel gears with any desired number of teeth and relative axes inclination angles by implementing additive manufacturing technology. A specific case study is discussed to calculate the profiles of two straight bevel gears of a biomedical application. Namely, this paper illustrates the design of the bevel gears for a new laparoscopic robotic system, EasyLap, under development with a grant from POR Calabria 2014−2020 Fesr-Fse. A meshing analysis is carried out to identify potential design errors. Moreover, finite element-based tooth contact analysis is fulfilled for determining the vibrational performances of the conjugate tooth profiles throughout a whole meshing cycle. Simulation results and a built prototype are reported to show the engineering feasibility and effectiveness of the proposed design approach.

【 授权许可】

Unknown