Authors

Abstract

In order to improve the quality of corn sowing and fertilizer utilization, reduce labor costs, this paper aimed at the traditional tillage fertilizer machine to improve. The seeding and fertilizing machine with adjustable flow is designed by integrating particle fertilizer sensor and CAN bus transmission technology. It is mainly composed of seed and fertilizer discharging mechanism, ditch and soil covering mechanism, and leakage seeding and blockage monitoring system. Fertilizer drop signal can be obtained in real time by detecting the flow sensor outside the fertilizer discharge pipe. The speed of the stepper motor can be adjusted after signal processing, which can also realize the alarm of missing sowing and blocking light, and realize the precise variable sowing. The field experiment results show that the maximum relative error of seed leakage rate monitoring is 3.75%, and the alarm accuracy of fertilizer clogging is high. This machine can reduce the intensity of manual operation, and the quality of operation can be effectively monitored and controlled, can effectively reduce the production cost, has better practicability and economy

Abstract in Chinese

为了提高玉米播种质量和肥料利用率，降低劳动成本，本文针对传统耕作施肥机进行改进。集成颗粒肥料传感器、CAN总线传输等技术设计的流量可调的播种施肥机，主要由排种排肥机构、开沟覆土机构，漏播堵塞监测系统等组成。通过检测排肥管外的流量传感器可实时获取肥料下落信号。经信号处理后调节步进电机转速，还可实现漏播、堵塞灯光报警，实现精准变量播种。田间试验结果表明：该机种子漏播率监测相对误差最大为3.75％，肥料堵塞报警准确率高。该作业机械能够减少人工作业强度，并对作业质量进行有效监测与控制，能有效降低生产成本，具有较好的实用性和经济性。