驱动式圆盘犁机组的受力分析

Force analysis on power driven disk plowtractor mounting unit

以整个机组为对象，对驱动式圆盘犁机组作受力分析．计算了拖拉机前后轮载荷的变动量，机组的直线行驶性能，驱动式圆盘犁在水平面内的平衡，以及工作参数、悬挂参数对水平面内平衡的影响，并以１ＬＹＱ－４２２驱动式圆盘犁机组田间实测数据进行验算．结果表明，拖拉机前后轮载荷变动量及偏转力矩均较小；当耕作速度较大时，圆盘偏角对平衡性能影响较大；水平瞬心π２靠近驱动轮轴及右侧时可提高平衡能力．

In this paper ,the forces on power driven disk plowtractor mounting unit and the performance of keeping tractor traveling straight were calculated, the formula of load alterations on the tractor′s front and back wheels have been deduced,and the effect of working and linkage parameters on power driven disk plow balance on horizontal were discussed. There was a further calculation using the field test data of 1LYQ422 power driven disk plowtractor mounting unit.The results showed that the load alterations on the tractor′s front and back wheels were small, and there was a significant effect of disk tilt angle on balance performance. The balance capacity could be improved by π2 near the right side of driving wheels.