作　　者： ; ; ; ; ; ; ; ;

机构地区： 中国热带农业科学院农业机械研究所

出　　处： 《农机化研究》 2013年第8期119-124,共6页

摘　　要： 现有木薯种植工艺与收获工艺不匹配或收获机本身结构的缺陷,导致机械式木薯收获过程中碎薯现象普遍,限制了木薯的采后经济价值。针对以上问题,对木薯收获机的入土齿刀板、限深板和立柱结构进行改进,有效避免了因受力对位不正、入土深度不够和木薯起获后壅堵等原因造成的侧断、铲断和折断现象。试验结果表明,改进后的木薯收获机入土响应时间仅为1.2s,入土深度达到33cm,碎薯率仅为1.7%,有效地提高了木薯收获机的工作质量。 The root damage rate of the cassava harvester before optimization was high because of the unsuitability of the cultivation system to the harvesting system and structural defects of the harvester itself,which would cause difficulties for postharvest preservation of cassava and affected its economic value.To solve the problem,the structures of toothed cutting board,depth control board and upright post were modified to optimize the cassava harvester.The optimization effectively reduce cassava root damages of being scraped,cut,and snapped in harvesting resulting from stress deviation,low penetrating depth and root jamming after being lifted.The experimental results showed that the buried response time of only 1.2s,the depth will be reach to 33cm,the root damage rate of the optimized cassava harvester was only 1.7% and its performance satisfied the requirements for optimization.

关 键 词： 木薯收获机 碎薯率 机械结构 改进

领　　域： [农业科学] [农业科学]