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首页> 外文期刊>Applied Engineering in Agriculture >EXPERIMENTS AND ANALYSIS OF A CONVEYING DEVICE FOR SOIL SEPARATION AND CLOD-CRUSHING FOR A POTATO HARVESTER
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EXPERIMENTS AND ANALYSIS OF A CONVEYING DEVICE FOR SOIL SEPARATION AND CLOD-CRUSHING FOR A POTATO HARVESTER

机译：马铃薯收割机土壤分离输送装置的实验与分析

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摘要

Bruising and damage losses are the most important key factors restricting the potato harvesting mechanization. The experimental work was conducted on an in-house conveying device for soil separation and clod-crushing testbed, which could be used to set a constant potato-soil proportion. In this work, a preliminary study was carried out to clarify the soil cushioning the potatoes travelling on separation sieve at different separation stages. Impact characteristics and movement processes were also studied. An impact recording device and high-speed camera technology were employed to obtain the instantaneous dynamics of the potato-soil mixture. The peak acceleration does not exceed 28.20 g when the potato-soil proportion increases from 18.07% to 38.55%; the peak acceleration reached 105.33 g when the potato-soil proportion was 100%. The number of impacts and peak impact acceleration are positively correlated with the vibration intensity of shaking rubber wheel under the condition of the same potato-soil proportion. It is noteworthy that the influence of the potato-soil proportion on the number of impacts and the peak impact acceleration was more obvious than that of the running speed of the separation sieve. This work provides a technical reference for the further investigation of bruising minimization and potato-soil separation technology.
机译：瘀伤和破坏损失是限制马铃薯收获机械化的最重要的关键因素。实验工作在内部输送装置上进行用于土壤分离和Clod破碎试验台，其可用于设定恒定的马铃薯土壤比例。在这项工作中，进行了初步研究，以澄清在不同分离阶段的分离筛网上的土豆堆积的土壤。还研究了影响特征和运动过程。采用冲击记录装置和高速相机技术来获得马铃薯土混合物的瞬时动态。当马铃薯土成比例从18.07％增加至38.55％时，峰值加速度不超过28.20克;当马铃薯土壤比例为100％时，峰值加速达到105.33克。撞击率和峰值冲击加速度与摇动橡胶轮的振动强度在相同的土豆土壤比例的条件下呈正相关。值得注意的是，马铃薯土比例对撞击数量的影响和峰值冲击加速度比分离筛的运行速度更加明显。这项工作为进一步调查瘀伤最小化和土壤分离技术提供了技术参考。

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