2ZCX-100A型川芎栽种机关键部件设计与试验OA

Chuanxiong(Ligusticum chuanxiong)is an important Chinese herbal medicine with substantial cultivation and medicinal value.However,the lack of specialized planting machinery limits the mechanization of Chuanxiong production,as existing agricultural equipment cannot adequately meet its specific agronomic requirements.To address this problem,this study developed a self-propelled,single-seed planter suitable for ridge planting of Chuanxiong,with the aim of providing specialized machinery for its mechanized production.Based on the agronomic requirements of Chuanxiong cultivation in Nanquan Town,Shifang city,Sichuan Province,the key components of the planter were theoretically analyzed and designed,with particular emphasis on seed metering,planting depth,and operating speed.A prototype of the 2ZCX-100A Chuanxiong planter was fabricated and evaluated through field experiments.A three-factor,three-level quadratic regression orthogonal rotational experimental design was employed,with seed-scoop diameter,planting depth,and operating speed as the experimental factors and the qualified-seeding rate,miss-seeding rate,and multiple-seeding rate as the evaluation indices.The results showed that the planter achieved a qualified seeding rate of 95.48%,miss-seeding rate of 2.15%,and a multiple-seeding rate of 2.37%.Response surface optimization identified the optimal parameters as seed-scoop diameter of 30.358 mm,a planting depth of 28.376 mm,and an operating speed of 0.216 m/s.Under the experimental conditions,the planter exhibited good operating performance and met the agronomic requirements of Chuanxiong planting.