CAJ | 학술논문

为了研究稻种在交叉导流式种箱中的流动特性及临界结拱状况，避免在播种过程中种箱内种子流断裂，影响对填充区的供种，利用散体力学对种箱出流口的临界结拱间隙距离进行近似推导，借助高清摄像相机对种箱内种子流动特性进行观察分析，并进行临界结拱间隙距离的试验。试验结果表明：在该结构模式下，种箱内种子能够实现整体流动，临界结拱间隙距离试验的结果与公式推导结果相近。在交叉导流式种箱的导种板间隙设计中，对于干燥物料，通过公式推导的结果可以作为参考值，对于湿种则需对公式进行系数修正。
위료연구도충재교차도류식충상중적류동특성급림계결공상황，피면재파충과정중충상내충자류단렬，영향대전충구적공충，이용산체역학대충상출류구적림계결공간극거리진행근사추도，차조고청섭상상궤대충상내충자류동특성진행관찰분석，병진행림계결공간극거리적시험。시험결과표명：재해결구모식하，충상내충자능구실현정체류동，림계결공간극거리시험적결과여공식추도결과상근。재교차도류식충상적도충판간극설계중，대우간조물료，통과공식추도적결과가이작위삼고치，대우습충칙수대공식진행계수수정。
In order to study rice flow characteristics and critical arching situation in the crossed diversion plate gap , avoid seed flow breaking during the sowing process , which could impact on the filling area of seed supply , this paper deduce approximately the critical arching gap of outflow port according to the theory of mechanics of granular media , take advan-tage of the HD video camera to observe the flowing characteristic of seeds in the seed -box , and conduct the experiment of testing critical arching gap .The results show that the seeds can achieve overall flow in this structural box , the results of critical arching gap are similar to the results of formula derivation .In the design of crossed diversion plate gap , the re-sults can be used as reference values to design the seed box of dry seeds , but for wet seeds the formula coefficient need to be modified .