Methodological proposal for the design and instrumental representation of agricultural disc plans. (Original)

Abstract

Concave discs are among the most recurrent implements studied in the major of Agricultural Engineering. Their design and calculations are discussed in details in the subject Agricultural Machinery II, however, its study is limited by not having received previous treatment in the subject Graphic of Engineering, since its literature is basically oriented towards other areas such as mechanics, electricity, construction; united to the above-mentioned the complexity of their instrumental representation in the plans. On the basis of the interdisciplinary teaching and the traditional drawing, a team of professors from the Faculty of Technical Sciences of the University of Granma proposed the elaboration of a methodological guide that allows the student to execute plans of pieces of agricultural discs by means of the  instrumental drawing, achieving a successful link between these subjects, inserting the study of the representation of the disc plan, as well as its component elements, in the subject Graphic Engineering. This integration has been implemented during the last four courses, in which the professors involved work with a constant educational bond, either in the preparation for teaching, the methodology, or in the review of technical plans and in committees for the defense of extra class works. The results are positive according to experts’ opinions and the diagnoses applied, in which students have proven the development of skills in the representation, interpretation and design of these items.