水田耕整机大拖板运行阻力的试验研究

EXPERIMENTAL STUDY ON THE TRAVELLING RESISTANCEOF THE SLIDER OF PADDYFIELD TILLER

以１ＬＢＰ－４．５型水田耕整机的大拖板为模型，在多种载荷、水平重心位置、牵引点及前进速度下，对大拖板的运行阻力进行了试验研究，分析了各因素对运行阻力的影响，对合理地设计和使用大拖板具有参考价值。

オo find the relations between the travelling resistance of the slider of paddyfield tiller and the vertical load, travelling speed, the location of the center of gravity of the slider and the location of drawn point, the soilbin tests have been conducted. It has been shown from the test results that: (1) the relationship between the slider resistance and the vertical load can be expressed byR=fPwhere f is a comprehensive coefficient; (2) when the speed of the tiller is taken in the range of 1081 m/s<v<1491 m/s, the variation of the resistance is small; (3) the center of gravity of the slider should be moved rearward to 30 mm^60 mm for reducing the travelling resistance.