起垄机起垄过程仿真及分析

Simulation and Analysis on Ridging Process of Ridging Machine

针对现有的起垄机不能使土壤破碎,易堵塞,效果不符合种植农艺的要求。为提高起垄机的起垄性能,通过仿真进行起垄机起垄过程仿真,仿真过程可知起垄犁铲起、向内侧翻转、细碎土壤过程;起垄犁后板将垄型压成长方体,使其形成基垄;垄侧镇压板侧面刮平;镇压辊筒将垄顶压平,使其满足垄体形状和尺寸要求。仿真结果表明:起垄机水平阻力保持在5 500 N左右;垂直阻力基本保持在1 300 N左右。垄体形状为梯形,垄体的上底边宽度为435 mm,下边长624 mm,高219 mm。起垄机试验结果为垄面上底边宽度的平均值为429 mm;垄面下底边宽度的平均值为628mm;垄高平均值为223 mm。

The existing ridging machine can not break the soil,it is easy to block,and the effect does not meet the requirements of planting agriculture.In view of these shortcomings,and in order to improve the ridging performance of ridger,the process of ridging machine is simulated in this paper.The simulation process shows the ridger plowing,turning inward,and breaking the soil.The ridge pattern is pressed into cuboid by the backboard of the ridger so as to form the base ridge;and the ridge sides are scraped flat;the ridge top is pressed flat with the pressing roller to meet the requirements of shape and size of the ridge.The simulation results show that the horizontal resistance of the ridging machine is maintained at about 5 500 N;the vertical resistance is basically maintained at about 1 300 N.The shape of the ridge is trapezoid;the width of the upper side of the ridge is 435 mm,the length of the bottom is 624 mm,and the height is 219 mm.The ridger test results show that the average width of the upper edge is 429 mm;the average value of the bottom edge width is 628mm;while the average value of the ridge height is 223 mm.