甘蔗横向种植机施肥间距电液控制系统研究  

Study on Electro-hydraulic Control System for Fertilization Spacing of Sugarcane Horizontal Planter

作　　者：陈远玲[1] 李玉凤 高骁卿 陶野 梁浩昌 CHEN Yuan-ling;LI Yu-feng;GAO Xiao-qing;TAO Ye;LIANG Hao-chang(Guangxi University,College of Mechanical Engineering,Nanning 530004,China)

机构地区：[1]广西大学机械工程学院

出　　处：《液压气动与密封》2019年第12期41-44,共4页Hydraulics Pneumatics & Seals

基　　金：广西科技开发重点项目(2018AB01002)

摘　　要：甘蔗横向种植具有用种少、单位面积出苗率较高,土地利用率高,且抗倒伏能力强等优势。针对现有横向甘蔗种植机施肥机构的转速不能跟踪行走速度的变化,导致施肥间距不均匀的问题,分析了施肥机构液压马达的转速、甘蔗横向种植机行走速度和施肥间距的关系,研究采用PLC控制电液比例节流调速回路的方法,对施肥机构液压马达的转速与甘蔗横向种植机行走速度进行匹配控制,实现对施肥间距的控制。仿真和实验结果表明:施肥机构的转速能够按照设定的目标值跟踪行走速度的变化,施肥间距能满足甘蔗横向种植的农艺要求。The horizontal type sugarcane planter has the advantages of less seed,high emergence rate of seeding per unit area,high land utilization rate,and strong lodging resistance.In view of the uneven fertilizing spacing problem caused by the mismatching between Fertilization institutions speed and the change of the walking speed,analyzes the relationship between the rotating speed of hydraulic motor,the walking speed of sugarcane planter and the spacing of fertilizer application.This paper adopts the method of controllingthe electro-hydraulic proportional throttling speed regulating loop by PLC to matching the rotating speed of hydraulic motor forfertilization institutions with the walking speed of the sugarcane planter,thus to realize the control of fertilization interval.The results of Simulation and experimental show that the rotating speed of the fertilization mechanism can track the change of walking speed according to the set target value,and the spacing of fertilization can meet the agronomic requirements of the horizontal planting of sugarcane.

关 键 词：甘蔗横向种植机 施肥机构 电液比例控制 PLC 速度跟踪 

分 类 号：TH137[机械工程—机械制造及自动化]