水垫形成技术在水田耕整机上的应用

On applying the theory of forming water pad to the water-field-tillage machine.

用正交试验虚拟水平法，对水田耕整机小滑板底部水垫形成的影响因素进行了试验研究，得出影响因素的顺序及最优水平组合为Ａ＿１Ｃ＿２Ｂ＿１，试验还表明，加装水垫形成装置后，可以在水田耕整机小滑板底部形成水垫，使其滑行阻力比加装泥水膜润滑形成装置的耕整机下降４２．０５％－６２．２１％。１公顷生产查定测试表明，加装水垫形成装置后，可提高工效５％，公顷油耗率下降８．０２％，小滑板尾部的磨损值减少５０％，有很大的经济与社会效益。

An experimental study was made on the influential factors of forming water pad underthe bottom of a little sliding board of the water-field-tillage machine by the method of dummy leveltechnique of orthogonal tests. We obtained the proper order of influential factors and the opti-mized-level combination A1C2B1. The tests still showed that the water pad under the bottom of thelittle sliding board of the water-field-tillage machine was formed after the device of a forming waterpad was installed and the sliding resistance was reduced by 42. 05%-62. 21%in comparison withthat of the installed device with the forming slurry-film lubrication of the tillage machine, Thecomparative test of 3. 333 hm￣2 showed that the efficiency of the tillage increased by 5%after thedevice of forming water pad was installed. The oil consumption reduced by 8. 02%kg/hm￣2. Thewearing value of the tail of the little sliding board rdeuced by 50%。 Thus remarkable economic andsocial ef ficiencv has been obtained.