【摘要】 在土槽上对免耕播种机单体开沟器空间受力特征测定分析表明：在土壤硬度为１６～２６ｋｇ／ｃｍ￣２范围内，开沟器入土阻力为７０～１００ｋｇ，牵引阻力为４５～８０ｋｇ；随工作速度和附加配重的增加，入土阻力和牵引阻力均增大。更多还原

【Abstract】 The soil load characteristics of the no-tillage planter opener were measured in the soil bin.Draft and vertical forces were 70kg to 100kg and 45kg to 80kg respectively at soil hardness from 16kg/cm2 to 26kg/cm2.Draft and vertical forces on the opener increased with the planter travel speed and attached weight.更多还原