CAJ | 학술논문

为避免地轮打滑引起小麦播种性能不稳，该研究抛开传统地轮驱动的纯机械播种方式，采用自我设计研制的双气吸排种盘、半开放式盛种器、无级变速调速器及播种机相应配件等，创新性地将无级变速技术与反馈控制技术较完美结合应用于小麦双线精播机。该技术中，排种轴的驱动力取自拖拉机尾部动力输出，采用单片机无线传递方式，在机具前进速度、小麦播量及播种株距之间建立起一套控制算法，使排种轴转速实时跟踪机具前进速度，以保障机具变速前进状况下种距的恒定。样机试验表明，该无级调控小麦双线精播机达到落种精确到每一粒，性能稳、误差小、株距恒定的预期目标。
위피면지륜타활인기소맥파충성능불은，해연구포개전통지륜구동적순궤계파충방식，채용자아설계연제적쌍기흡배충반、반개방식성충기、무급변속조속기급파충궤상응배건등，창신성지장무급변속기술여반궤공제기술교완미결합응용우소맥쌍선정파궤。해기술중，배충축적구동력취자타랍궤미부동력수출，채용단편궤무선전체방식，재궤구전진속도、소맥파량급파충주거지간건립기일투공제산법，사배충축전속실시근종궤구전진속도，이보장궤구변속전진상황하충거적항정。양궤시험표명，해무급조공소맥쌍선정파궤체도락충정학도매일립，성능은、오차소、주거항정적예기목표。
In order to avoid wheat sowing instability caused by the land wheel skid, the study puts aside the purely mechanical seeding mode which is driven by traditional wheel. It uses a self-designed and developed double suction seed plate, a semi-open seed container, CVT governor, corresponding accessories of sowing machine and so on. The perfect combination of CVT technology and feedback control technology is applied to the wheat double precision seeder. In this technique, the force of seed shaft is from the power output of the tractor tail. It uses wireless transfer mode of SCM to establish a set of control algorithm between forward speed, wheat sowing quantity and sowing spacing. The seeding shaft speed tracks the forward speed in order to ensure the constant distance when trans-miss the progress status. Prototype tests indicate that the wheat double precision seeder developed by air suction stepless regulation can reach precisely the expected target about the fall for each particle. Meanwhile, it has steady performance, small errors and spacing constant.