Design and Experiment of the Combined Machine for Transplanting Outcrop of Codonopsis with Micro Ridge Covered with Film

Abstract

In response to the problem of no supporting equipment for the cultivation of Codonopsis in the hilly and mountainous areas of northwest China, a combined machine for transplanting outcrop of Codonopsis with micro ridges covered with film is designed. The key components of the prototype are analyzed and designed, and the structures and working parameters of the seedbed preparation device, seedling-casting device, rotary tillage soil-covering device, film-covering device, seedling head burial, and film edge soil-covering device are determined. The transmission system scheme is established, and the working mechanism of the core components is analyzed. Field experiments show that when the target seedling spacing is 4.4 cm and the machine moves forward at a speed of 0.1, 0.15, and 0.2 m/s, the variation coefficient of planting spacing and the qualification rate of planting depth meet the standard requirements. The qualified rate of planting posture and film side outcrop are greatly affected by the operating speed of the machine and decrease with the increase in operating speed. When the operating speed reaches 0.1 m/s, the average variation coefficient of planting spacing is 0.08% and the average qualified rate of planting depth, planting posture and film side outcrop is 95.83%, 94.17%, and 93.33%, respectively, which shows that the operating performance is better than that of the operating speeds of 0.15 m/s and 0.2 m/s. This study provides a new reference for the theoretical research and design of mechanized and automated transplanting machinery for Codonopsis seedlings.

Design and Experiment of a Film-Drilling Potato Seeder with Eccentric Coupling

“…The amount of soil applied to cover the membrane surface is mainly affected by the depth of cultivation h and the rotational angular velocity ω. Other influencing factors are the number of rotors Z and the forward speed of the machinery V. When the forward speed V of the implement is constant, the rotational angular velocity and tillage depth are the main factors affecting the thickness of the soil cover [31].…”

“…Agriculture 2024, 14, x FOR PEER REVIEW 20 of forward speed of the machinery V. When the forward speed V of the implement is con stant, the rotational angular velocity and tillage depth are the main factors affecting th thickness of the soil cover [31].…”