【摘要】 深栽造林是解决半干旱沙地造林成活率和保存率最有效的方法之一 ,深栽造林钻孔机是用于深栽造林最为有效的设备。通过对设计制造的深栽造林钻孔机在实地 -科尔沁沙地进行的钻孔阻力矩与钻头转速、进给速度不同造林地不同土壤硬度之间的关系等的性能试验表明 :该机在科尔沁半干旱沙地进行造林作业、在钻头转速为 36 0～ 40 0r min和进给速度为 0 .0 47m s时具有最佳工作状况和最大钻孔造林效率。在科尔沁沙地的土壤硬度条件下 ,用于深栽造林钻孔机的钻孔直径为 90mm时最大的钻孔阻力矩为 5 3Nm ,而该机所能提供的钻孔力矩完全满足这一要求 ,并具有足够的扭矩储备。更多还原

【Abstract】 Tree deep planting is one of the best methods in semiarid sand area with high-planted tree’s survival and keeping rate. Deep Planting Earth Auger is the ideal and useful machine for deep planting. The function tests of the earth auger are focused on the relations between resistance torque with the drill bit rotation speed, with feeding speed and with soil hardness. The results showed that machine would have most efficiency in tree planting with the auger rotation speed of 360～400 r/min and with the feeding speed of 0.047 m/s. The maximum resistance torque was 53 Nm in Keerqin sand soil conditions with 90 cm diameter of drilled hole. The designed Deep Planting Earth Auger satisfied the resistance and could supply more torque than the requirement in existing machine conditions.更多还原