农业工程学报
農業工程學報
농업공정학보
2014年
9期
50-57
,共8页
农业机械%耕作%模型%垄作耕法%播种种床%垄形断面%免耕
農業機械%耕作%模型%壟作耕法%播種種床%壟形斷麵%免耕
농업궤계%경작%모형%롱작경법%파충충상%롱형단면%면경
agricultural machinery%cultivation%models%ridge tillage%seed bed%ridge shape%no-tillage
为了建立东北地区垄作保护性耕作工艺模式，并为其配套机具的优化设计提供理论指导。该文针对东北垄作区的保护性耕作，论述了国内外垄作耕法的概况。该文论述了国内外垄作耕法的概况。在调查研究的基础上，结合课题科研实践提出了垄作耕法的垄形断面图，构建了机械免耕播种种床土壤耕作的几何模型与相关尺寸。从田间调查与测试结果，以几何模型为依据，对2种形式（滚动圆盘式，条带旋耕式）玉米垄作免耕播种机进行了研究、分析与评价。研究表明，滚动圆盘式破茬与清垄方案符合玉米垄作几何模型要求，但仍需研发新型破茬圆盘犁刀以减小工作阻力，研发新的加载技术，保持机器对下压力的需求。该研究可为垄作免耕播种机的创新设计、改进与评价提供科学依据与方法。
為瞭建立東北地區壟作保護性耕作工藝模式，併為其配套機具的優化設計提供理論指導。該文針對東北壟作區的保護性耕作，論述瞭國內外壟作耕法的概況。該文論述瞭國內外壟作耕法的概況。在調查研究的基礎上，結閤課題科研實踐提齣瞭壟作耕法的壟形斷麵圖，構建瞭機械免耕播種種床土壤耕作的幾何模型與相關呎吋。從田間調查與測試結果，以幾何模型為依據，對2種形式（滾動圓盤式，條帶鏇耕式）玉米壟作免耕播種機進行瞭研究、分析與評價。研究錶明，滾動圓盤式破茬與清壟方案符閤玉米壟作幾何模型要求，但仍需研髮新型破茬圓盤犛刀以減小工作阻力，研髮新的加載技術，保持機器對下壓力的需求。該研究可為壟作免耕播種機的創新設計、改進與評價提供科學依據與方法。
위료건립동북지구롱작보호성경작공예모식，병위기배투궤구적우화설계제공이론지도。해문침대동북롱작구적보호성경작，논술료국내외롱작경법적개황。해문논술료국내외롱작경법적개황。재조사연구적기출상，결합과제과연실천제출료롱작경법적롱형단면도，구건료궤계면경파충충상토양경작적궤하모형여상관척촌。종전간조사여측시결과，이궤하모형위의거，대2충형식（곤동원반식，조대선경식）옥미롱작면경파충궤진행료연구、분석여평개。연구표명，곤동원반식파치여청롱방안부합옥미롱작궤하모형요구，단잉수연발신형파치원반리도이감소공작조력，연발신적가재기술，보지궤기대하압력적수구。해연구가위롱작면경파충궤적창신설계、개진여평개제공과학의거여방법。
In order to establish the Northeast ridge patterns of conservation tillage technology and provide theoretical guidance for optimal design of its ancillary equipment, this paper details the status of ridge tillage development in China and some other countries to achieve conservation tillage for northeast ridge area of China. A new ridge shape was put forward based on survey and statistic analysis and the seed bed tillage geometric models and related dimensions of no-tillage sowing was set up. According to results of field surveys and test, the experiment, analysis and evaluation of two forms of no-tillage corn ridge seeder (rolling disc and strip rotary cultivation) were conducted based on the geometric models, and the results showed that the stubble cutting and clearing of rolling disc seeder can meet the requirements of ridge geometric model in corn production, but new disc coulter need to be developed to reduce working resistance and loading techniques need to be explored to ensure the demand of down pressure of the machine. This study may provide a basis and method for innovative design, improvement and evaluation of ridge no-tillage seeder.
