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江苏省淮阴县农机研究所和农机修造厂研制的4D-120型多用收获机,可以收获花生、山芋(地瓜),马铃薯、甜菜、大头菜、胡萝卜、薄荷根、棉柴等作物.两年来,经大面积田间试验和测定表明:机器工效高,收获质量好,构造简单,工作可靠.它与东风-50或同类型拖拉机悬挂联结;由拖拉机驾驶员一人操作,每小时可收获3～6亩,收净率达95%以上.适应于含水分20%以下的砂壤土、两合土工作. 构造及工作过程机器主要由机架、挖掘铲、喂入机构(抛送轮和喂入轮),分离机构(五组分土器),集条机构,传动
The 4D-120 multi-purpose harvester developed by Huaiyin County Agricultural Machinery Research Institute and Agricultural Machinery Repair Factory of Jiangsu Province can harvest peanut, potato (sweet potato), potato, beet, kohlrabi, carrot, mint root, cottonwood and other crops. Large area field trials and measurements show that the machine has high efficiency, good harvesting quality, simple structure and reliable work. It is connected with Dongfeng-50 or the same type of tractor suspension linkage; one operation by tractor driver can harvest 3 ~ 6 mu per hour, The rate of net income of more than 95%. Adapt to sandy loam soil moisture content below 20%, the two combined soil. Construction and working process mainly by the machine frame, dig shovel, feeding institutions (throwing wheel and feed wheel) Separating mechanism (five components of earth), set of institutions, transmission