目的 研制一种预切种式甘蔗种植一体机，以便连续完成开沟、施肥、排放种苗、覆土、盖膜等一次性作业。方法 利用有限元分析软件ANSYS对甘蔗种植机的机架进行模态分析，通过田间试验获取3种开沟犁的犁沟土壤扰动指数；设计液压传动系统、播种机构、开沟覆土装置、施肥机构和覆膜机构，并通过田间试验获得甘蔗种植机的种植深度合格率、覆土厚度合格率、种植密度、伤芽率、漏株率、施肥量稳定性变异系数、地膜破损率等。结果 模拟结果表明当激励频率为134.47~514.35 Hz时，机架容易发生共振，且最大位移可达19.67 mm。田间试验表明凸线型开沟犁的土壤扰动指数为17.05，最大沟深可达19.13 cm，符合甘蔗种植沟深的标准。甘蔗种植深度合格率为83%，覆土厚度合格率为91%，种植密度为135 331 hm-2，伤芽率为4.7%，漏株率为4.5%，施肥量稳定性变异系数为6.1%，地膜破损率为51%，均符合甘蔗种植机的设计标准。结论 该小型预切种式甘蔗种植一体机符合设计要求，能够显著提高甘蔗种植的效率。
Objective To design a pre-cutting type and all-in-one sugarcane planter, so as to open furrows, fertilize, discharge seedlings, cover soil and cover film during a single operation.Method The finite element analysis software ANSYS was used for modal analysis of the sugarcane planter. The soil disturbance indexes of three furrow ploughs were obtained through field experiments. The hydraulic transmission system, seeding mechanism, furrow covering device, fertilization mechanism and film covering mechanism were designed. We used field experiments to measure the qualified rates of planting depth and covering soil thickness, planting density, bud injury rate, missing rate, coefficient of variation in stability of fertilization amount and rate of plastic film damage of the sugarcane planter.Result The simulation results showed that the frame was prone to resonance when the excitation frequency was from 134.47 to 514.35 Hz, and the maximum displacement could reach 19.67 mm. The results of field experiment showed that the soil disturbance index of convex furrow plough was 17.05, and the maximum furrow depth was 19.13 cm, which met the standard of sugarcane planting furrow depth. The qualified rate of planting depth was 83%, the qualified rate of covering soil thickness was 91%, the planting density was 135 331 hm-2, the bud injury rate was 4.7%, the missing rate was 4.5%, the coefficient of variation in stability of fertilization amount was 6.1%, and the rate of plastic film damage was 51%, which all met the design criteria of sugarcane planter.Conclusion This small pre-cutting type and all-in-one sugarcane planting machine meets the design requirements and can significantly improve sugarcane planting efficiency.