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1BY-7.4型水平旋转翼宽幅轻型圆盘耙是在中国农机院的协助下,由佳木斯第二农机厂和佳木斯整地机械研究所共同设计试制的。该机于1981年10月通过部级技术鉴定,投入大批生产。该机于1982荣获原农机部重大科技成果二等奖。目前已被农牧渔业部国内农机考察组推荐为推广使用的机型。该耙在设计时充分考虑了目前配套动力问题和发展大马力拖拉机的配套要求。该耙与东方红-75拖拉机配套以5～6公里/小时速度作业,与100～120马力轮式拖拉机配套以8～10公里/小时作业,与130～160马力轮式拖拉机配套以10～14公里/小时高速作业。该耙设计先进,结构新颖。它采用了较先进的折
1BY-7.4 Horizontal Rotating Wings Wide-width light disc harrow was jointly designed and manufactured by Jiamusi Second Farm Machinery Factory and Jiamusi Site Preparation Machinery Research Institute with the assistance of China Agricultural Machinery Institute. The aircraft in October 1981 through ministerial technical appraisal, put into mass production. The aircraft in 1982 won the former Ministry of agriculture major scientific and technological achievements second prize. At present, it has been recommended by domestic agricultural inspection team of Ministry of Agriculture, Animal Husbandry and Fisheries as a model for promotion. The rake in the design fully take into account the current supporting power problems and the development of high-power tractors matching requirements. The rake and Dongfanghong -75 tractor are matched with 5 ~ 6km / h speed operation, matched with 100 ~ 120 hp wheeled tractor with 8 ~ 10km / h and 130 ~ 160 hp wheeled tractor with 10 ~ 14 Km / h high-speed operation. The rake design advanced, novel structure. It uses a more advanced discount