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为适应东北高寒地区水稻秸秆的机械化还田作业,降低还田作业的牵引阻力、加快秸秆的腐解,设计了具有滑切减阻特性的还田弯刀组成的高秆翻埋装置和使秸秆均匀平铺同时施入秸秆腐解剂的秸秆梳理-腐解剂施入装置。采用旋转正交设计方法设计试验方案,考察机器前进速度、刀辊转速、还田深度三个因素对牵引阻力的影响,建立牵引阻力模型,得到牵引阻力最优的参数组合:机器前进速度为1.4 m/s,刀滚转速210 r/min,还田深度为10 cm。影响阻力的因素主次顺序为:刀辊转速>机器前进速度>还田深度。
In order to adapt to mechanized fieldwork of rice stalk in the alpine region of northeast China, reduce the traction resistance of returning farmwork and speed up the decomposition of straw, design a high stalk burying device composed of returning scimitar with sliding and drag reduction characteristics, Uniform trowel while applying straw decomposer straw comb - decomposer into the device. The orthogonal design method was used to design the experimental scheme. The effects of the machine forward speed, knife speed and depth of field on the traction resistance were investigated. The traction resistance model was established and the optimal combination of traction resistance was obtained. The forward speed of the machine was 1.4 m / s, knife speed 210 r / min, back to the depth of 10 cm. Affect the resistance of the order of priority: knife speed> machine speed> depth of field.