秸秆粉碎覆盖玉米免耕施肥播种机设计  

Design of No-tillage Maize Planter with Straw Smashing and Fertilizing

作　　者：张军昌[1] 闫小丽[1] 薛少平[1] 朱瑞祥[1] 苏光远 

机构地区：[1]西北农林科技大学机械与电子工程学院,陕西杨凌712100 [2]陕西省农业机械鉴定站,西安710065

出　　处：《农业机械学报》2012年第12期51-55,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金："十二五"国家科技支撑计划资助项目(2012BAD14B11);陕西省农机局科研开发资助项目(201102040490)

摘　　要：设计了2BMQ-180/3型秸秆粉碎覆盖玉米免耕施肥播种机,提出了在破茬开沟器前安装驱动立轴旋转式秸秆粉碎装置,将秸秆和杂草粉碎并抛撒在地表的防堵措施,并进行了田间播种性能试验。试验结果表明,该机通过性良好;种、肥覆土深度变异系数分别为23.7%、20.8%,粉碎秸秆长度小于10 cm的达到90%以上,出苗率超过90%,提高了播种质量;实现了秸秆粉碎还田和免耕播种的联合作业方式,较好地满足了我国北方一年两熟区保护性耕作技术发展的需求。2BMQ- 180/3 type no-tillage maize planter with stalk mulch smashing and fertilizing was developed. The anti-blockage measures when using the smashing straw endings machine-driven by vertical shaft rotary to smash the straw and weeds and throw them on the surface of the fields before the opener to plough the ditch was put forward. Then, the machine＇ s work performance was tested. The results showed that the planter performed very well. Its variation coefficients of sowing fertilizer cover depth were 23.7% and 20. 8%. The smashed stalk length was less than 10 cm which was up to more than 90%. The germination rate was more than 90%. This improved the germinative rate of the seeds and achieved the joint practices model of smashing the straw and no-tillage sowing. The model also meets the requirements of conservation tillage technology in the area.

关 键 词：玉米免耕播种机 秸秆粉碎 保护性耕作 防堵 设计 

分 类 号：S223.26[农业科学—农业机械化工程]