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zhai yi li
Author(s): 
Pages: 12-13
Year: Issue:  10
Journal: Farm Machinery

Keyword:  犁耕阻力牵引阻力残茬犁体接触面积引阴刮擦翼部黄砂深松;
Abstract: <正> 为寻找减少犁耕阻力的可能性,国内外许多单位对窄翼犁进行了试验。试验证明,牵引阻力可减少16.5%,犁体侧压力减少17%,碎土能力有所增强,地表大土块平均比普通犁减少12.25%,耕深和耕宽的稳定性也较普通犁好,植物残茬的埋覆和普通犁一样,仅犁翼的强度有所减弱,应在不影响翻垡的情况下增加犁翼的支撑。下面是我垦区青山农场对窄翼犁试验的结果(见表)。窄翼犁听以能显示上述优点,原因是:1.牵引阻力减少,是由于狭窄的犁翼使垡片与犁壁的接触面积
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