论文部分内容阅读
一、方案的确定根据国内外的资料,我们研究认为时针式喷灌机存在着机动性能差,投资大,四角漏喷等缺点。而平移式喷灌机正是克服了这些缺点,所以我们选用了这种机型。在动力选用方面,我们认为水动式最经济,是最有发展前途的;电动式自动化水平高,操作简单,若机构设计合理,电元件质量保证,虽然成本高于水动式,但同样是比较好的一种驱动方式。但结合当前情况,在
First, the program to determine According to domestic and foreign information, we think that the hour-hand irrigation machine has poor maneuverability, investment, leakage and other shortcomings of the four corners. The translation of the irrigation machine is to overcome these shortcomings, so we chose this model. In terms of power selection, we believe that hydrodynamics are the most economical and promising. The high level of electric automation and simple operation are the same. If the design of the mechanism is reasonable and the quality assurance of the electric components is higher than the hydrodynamic cost, A better way to drive. But combined with the current situation, in