密植果园开沟施肥机开沟刀片设计与试验
发布时间：2018-10-14 19:50
【摘要】：针对现有开沟刀片在密植果园开沟施肥过程中存在功率消耗大、沟深稳定性差的问题,运用旋耕理论和试验分析的方法,设计了一种正弦指数曲线型开沟刀片。通过分析拖拉机前进速度、刀盘转速以及二者相互作用对功率消耗和沟深稳定性的影响,确定了正弦指数曲线型开沟刀片工作参数的最佳组合为:拖拉机前进速度1 m/s,刀盘转速为200 r/min。以正弦指数曲线型开沟刀片B处弯曲角、弯曲半径、C处弯曲角为影响因子,以功率消耗和沟深稳定性为响应值,通过三因素四水平正交试验,确定了正弦指数曲线型开沟刀片结构参数的最佳组合为:B处弯曲角为95°,C处弯曲角为140°,弯曲半径为9 mm。对正弦指数曲线型开沟刀片和现有开沟刀片进行对比试验,结果表明:在工作参数和开沟深度相同的条件下,正弦指数曲线型开沟刀片比现有开沟刀片功率消耗下降3.29 k W,沟深稳定性提高8.83个百分点,各项技术指标均达到了国家相关标准的技术要求。
[Abstract]:In order to solve the problems of large power consumption and poor stability of ditch depth in the process of furrow application in close planting orchard, a sinusoidal exponential curve groove cutting blade was designed by means of rotary tillage theory and experimental analysis method. By analyzing the effects of tractor speed, cutter speed and interaction between them on power consumption and channel depth stability, The optimum combination of operating parameters of sinusoidal exponential curve open groove inserts is determined as follows: the speed of the tractor is 1 m / s and the speed of the cutter head is 200 r / min. Taking sinusoidal exponent curve cutting blade with bending angle at B, bending radius, bending angle at C as the influencing factor, power consumption and channel depth stability as response value, three factors and four levels orthogonal test were carried out. The optimum combination of structural parameters of sinusoidal exponential curve groove cutting blade is determined as follows: the bending angle at B is 95 掳, the bending angle at C is 140 掳, and the bending radius is 9 mm.. The comparison test between sinusoidal exponential curve groove cutting blade and existing trench blade shows that: under the same operating parameters and trench depth, The power consumption of sinusoidal index curve groove cutting blade is reduced by 3.29 kW and the stability of trench depth is increased by 8.83 percentage points. All the technical indexes meet the technical requirements of relevant national standards.
【作者单位】： 中国农业机械化科学研究院;新疆农垦科学院机械装备研究所;中国机械工业集团有限公司;现代农装科技股份有限公司;
【分类号】：S222.3
本文编号：2271474
[Abstract]:In order to solve the problems of large power consumption and poor stability of ditch depth in the process of furrow application in close planting orchard, a sinusoidal exponential curve groove cutting blade was designed by means of rotary tillage theory and experimental analysis method. By analyzing the effects of tractor speed, cutter speed and interaction between them on power consumption and channel depth stability, The optimum combination of operating parameters of sinusoidal exponential curve open groove inserts is determined as follows: the speed of the tractor is 1 m / s and the speed of the cutter head is 200 r / min. Taking sinusoidal exponent curve cutting blade with bending angle at B, bending radius, bending angle at C as the influencing factor, power consumption and channel depth stability as response value, three factors and four levels orthogonal test were carried out. The optimum combination of structural parameters of sinusoidal exponential curve groove cutting blade is determined as follows: the bending angle at B is 95 掳, the bending angle at C is 140 掳, and the bending radius is 9 mm.. The comparison test between sinusoidal exponential curve groove cutting blade and existing trench blade shows that: under the same operating parameters and trench depth, The power consumption of sinusoidal index curve groove cutting blade is reduced by 3.29 kW and the stability of trench depth is increased by 8.83 percentage points. All the technical indexes meet the technical requirements of relevant national standards.
【作者单位】： 中国农业机械化科学研究院;新疆农垦科学院机械装备研究所;中国机械工业集团有限公司;现代农装科技股份有限公司;
【分类号】：S222.3
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