Influence of Excitation Position on Mechanized Picking Effect of Camellia Oleifera

Abstract

Camellia oleifera oil is easily absorbed by the human body and has a high development prospect in the research and development of new drugs. However, the labor intensity involved in picking has limited the development of the camellia oil industry. Vibratory mechanized harvesting is considered to be an effective way to solve harvesting difficulties. In this study, the whole process of accelerating the mechanical vibration picking is analyzed theoretically, according to different vibration positions (height), and a vibration picking experiment is carried out. The ratio of the optimal excitation location to the years of growth of Camellia oleifera was found to be between 16 and 20. It was observed that with the increase of camellia growing years, this ratio gradually decreased, and its optimal vibration position showed an increasing trend. Further, when the excitation time was greater than 8 s, the fruit removal rate did not continue to increase, but the buds and leaves falling continued to decrease. This study can effectively improve the efficiency of camellia oil fruit picking and reduce the drop-off of camellia buds and leaves.

Simulation and experimental analysis of Camellia oleifera fruit shedding based on finite element explicit dynamics

“…Further research and development of C. oleifera fruit harvesting machinery can be expected. In the past, researchers have developed a variety of different mechanized harvesting equipment (Gao et al 2013;Gao et al 2019;Wu et al 2020;Du et al 2022a) for harvesting C. oleifera fruit, such as vibrating type, tooth comb type, and roller rubber type equipment (Du et al 2021;Du et al 2022b;Wu et al 2022c). However, because of the biological characteristics of C. oleifera fruit, there are some problems, such as insufficient separation force and misharvesting of flowering buds when using mechanized harvesting equipment (Chen et al 2019b).…”