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The Conical Stones Olive Oil Mill: Analysis through Computer-Aided Engineering

Author

Listed:
  • José Ignacio Rojas-Sola

    (Department of Engineering Graphics, Design and Projects, University of Jaén, 23071 Jaén, Spain)

  • Eduardo De la Morena-De la Fuente

    (‘Engineering Graphics and Industrial Archaeology’ Research Group, University of Jaén, 23071 Jaén, Spain)

Abstract

This article analyzes an olive oil mill formed of four conical stones used in the milling of the olive. To this end, a study of computer-aided engineering (CAE) was carried out using the parametric software Autodesk Inventor Professional, consisting of a static analysis using the finite-element method (FEM) of the three-dimensional (3D) model of the mill under real operating conditions. The results obtained revealed that the conical stones mill was a very robust machine. When studying the assembly in the most unfavorable situation (blockage of one of its millstones), we observed that the element with the highest von Mises stress was the bearing nut, reaching a value of 263.9 MPa, which was far from the elastic limit of cast iron (758 MPa). On the other hand, the machine hardly presented any equivalent deformations or displacements that could jeopardize the operation as a whole. The maximum displacement obtained was 2.494 mm in the inertia flywheel, and the equivalent deformations did not reach 0.1% of the part dimension. Similarly, the element with the lowest safety coefficient (2.87) was the same bearing nut with the highest von Mises stress, although the next element with the second lowest safety coefficient had a value of 8.69, which showed that the set was clearly oversized. These results demonstrate the convenience of redesigning the set in order to resize some of its elements, and that they could have lower safety coefficients of between 2 and 4. After an initial analysis, the resizable elements would fundamentally be those related to the movement transmission system and the frame structure.

Suggested Citation

  • José Ignacio Rojas-Sola & Eduardo De la Morena-De la Fuente, 2020. "The Conical Stones Olive Oil Mill: Analysis through Computer-Aided Engineering," Agriculture, MDPI, vol. 10(7), pages 1-24, July.
    • Handle: RePEc:gam:jagris:v:10:y:2020:i:7:p:255-:d:379078
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    References listed on IDEAS

    as
    1. Spyros Niavis & Nikos Tamvakis & Basil Manos & George Vlontzos, 2018. "Assessing and Explaining the Efficiency of Extensive Olive Oil Farmers: The Case of Pelion Peninsula in Greece," Agriculture, MDPI, vol. 8(2), pages 1-13, February.
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    7. Sergio Castellano & Antonella Di Palma & Giacinto S. Germinara & Marco Lippolis & Giuseppe Starace & Giacomo Scarascia-Mugnozza, 2019. "Experimental Nets for a Protection System against the Vectors of Xylella fastidiosa Wells et al," Agriculture, MDPI, vol. 9(2), pages 1-8, February.
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    Cited by:

    1. Rafael E. Hidalgo Fernández & Pilar Carranza-Cañadas & Francisco J. García-Salcedo & Paula Triviño-Tarradas, 2020. "Parameterisation and Optimisation of a Hand-Rake Sweeper: Application in Olive Picking," Agriculture, MDPI, vol. 10(9), pages 1-18, August.
    2. José Ignacio Rojas-Sola & Eduardo De la Morena-De la Fuente & Manuel Jesús Hermoso-Orzáez & David Hernández-Díaz, 2020. "The Tower Press for Obtaining Olive Oil: Analysis through Computer-Aided Engineering," Agriculture, MDPI, vol. 10(11), pages 1-25, November.

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