Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Synthesis of a new clamping mechanism design for agricultural harvest
Submission Author:
Esdras Salgado da Silva , PR
Co-Authors:
Gustavo Valdatti Souza, Leonardo Grandini da Silveira Adami, Esdras Salgado da Silva , Daniel Martins
Presenter: Gustavo Valdatti Souza
doi://10.26678/ABCM.COBEM2023.COB2023-1534
Abstract
Innovation in mechanisms for agricultural devices is essential for improving the efficiency, productivity, and sustainability of agricultural practices. In this context, harvesting is a critical process that impacts the yield and quality of crops, as well as the efficiency of the overall farming operation. The use of appropriate harvesting mechanisms can increase productivity, minimize losses due to damage or waste and reduce labor costs. Therefore, investment in research and development of innovative mechanisms for agricultural machinery is crucial for achieving sustainable and profitable agricultural practices, creating new opportunities. The creation of new devices through the development of novel kinematic structures remains a significant challenge. Traditionally, designers relied on their intuition, creativity, and experience to accomplish this task. To improve this process, the use of systematic methodologies to assist in the process of generating new kinematic chains of mechanisms is of paramount importance. These methods ensure an organized and structured development process, guaranteeing better results at the conceptual design process. The objective of this work is the applying of a method for generating and selecting the kinematic chain for a novel harvesting end effector. For this purpose, kinetic and other characteristics of existing mechanisms will be extracted through the use of tools to analyze the mechanical design, classifying them into three categories, being the functional requirements, structural characteristics and other design constraints. These features are relevant in the generation of new chains and serve as elimination criteria for results that do not meet them. Then, possible variants for the solution will be generated, using selection criteria previously established to choose the kinematic chain in order to develop a new clamping device. The results demonstrate that this proposed methodology generates design possibilities that can be alternative to the existing ones. A brief discussion of the implications of this method for agricultural engineering is carried out, and the comparison of them with other existing methodologies is performed. The results show that the applied methodology was effective for the creation of a new clamping mechanism for harvesting with mobility two and two closed loops, which can be adaptable to different types of fruits. Thus, its versatility is important to reduce manufacturing costs. The dimensional synthesis of the mechanism and optimization are suggestions for future work.
Keywords
Robotics, Mechanisms Design, end effector, Harvesting device, synthesis methodology
