CAJ | 학술논문

针对我国现有玉米联合收获机集成度不够、剥净率不高、生产效率较低、秸秆破碎效果差等突出问题，研制出适宜黄淮海地区不同行距的玉米机械化联合收获机。通过调研并借鉴已有技术，应用三维建模和机械优化设计理论，创制出平滑 V型对置式拨禾链轮摘穗机构，确定了秸秆与装置相互作用的技术参数，分析了升运与果穗喂入量的动态关系，设计出短距集中式升运装置，发明了 W 型橡胶辊与铸铁辊间隔式剥皮装置，建立了玉米果穗在剥皮过程中受力情况的力学模型。集成设计出的两行自走式玉米收获机经山东省农业机械试验鉴定站检测，总损失率小于2．5％，生产率大于0．25hm2／h，摘果率高于95％，满足工作要求。
침대아국현유옥미연합수획궤집성도불구、박정솔불고、생산효솔교저、갈간파쇄효과차등돌출문제，연제출괄의황회해지구불동행거적옥미궤계화연합수획궤。통과조연병차감이유기술，응용삼유건모화궤계우화설계이론，창제출평활 V형대치식발화련륜적수궤구，학정료갈간여장치상호작용적기술삼수，분석료승운여과수위입량적동태관계，설계출단거집중식승운장치，발명료 W 형상효곤여주철곤간격식박피장치，건립료옥미과수재박피과정중수력정황적역학모형。집성설계출적량행자주식옥미수획궤경산동성농업궤계시험감정참검측，총손실솔소우2．5％，생산솔대우0．25hm2／h，적과솔고우95％，만족공작요구。
Aiming at the existing corn harvester integrated enough, stripping is not high, the production efficiency is rela-tively low, the straw crushing effect difference prominent problems such as the net rate, developed a different row spacing of maize machinery suitable for Huang Huai Hai region of combine harvester.Through research and reference to the ex-isting technology, the application of 3D modeling and optimal design of mechanical theory, create a smooth V type op-posed reel sprockets snapping mechanism, technical parameters and the mutual effect of straw determined device;W type rubber roller and the cast iron roller interval type peeling device was invented, and established mechanical model of the forces ear of corn in the stripping process; Integrated design appropriate self-propelled corn harvest machine by the Shandong Province agricultural machinery testing station detection identification of 2 line, the total loss rate of less than 2.5%, the productivity is more than 0.25/hm2, the fruit picking rate higher than 95%,can meet the job requirements.