Modelamiento y Fabricación de un Sistema de Transmisión de Potencia Inspirado en el Sistema Ceramic Speed Driven

Abstract

The search for and development of new mechanical devices that improve and increase the efficiency of energy transmission in industry is booming due to the need to transfer greater loads at higher speeds. The roller pinion system is a relatively new alternative that aims to provide greater precision in load transmission, mainly in processes where it is necessary to change from mutual rotational to translational motion.

As it is a mechanism that has only been on the market for a short time, its contact and motion transfer characteristics have not been studied in depth, so it is necessary to analyze its mechanical and kinematic principles to verify its viability as an alternative to traditional transmission systems. The mechanism will be modeled under a new trochoid tooth profile, which has multiple advantages over the cycloid profile in this specific application. Initially, a geometric analysis will be performed for the manufacture of this new tooth, identifying the basic parameters required. Subsequently, the deduction of the mechanism's line of action will be shown in order to perform a preliminary kinematic analysis that will serve as a prospectus for future projects on this new device. Based on this kinematic analysis, which allows the constant transmission of speed to be verified, a study of the stress state of the system is carried out using the finite element method (FEM), which reveals the critical points of the system that could lead to its failure.

Finally, a mechanical prototype is manufactured in order to experimentally measure the calculations made in the kinematic analysis. This prototype has a transmission between parallel axes, which allows the output speed of the system to be measured. The results show the system's ability to transmit speed constantly, where parameters such as the number of bearings, the module, the rack displacement coefficient, among others, have an important effect on speed transmission, as well as on the geometric construction of the device.