双辊组合式菠萝叶粉碎还田机的设计与试验分析

发布时间：2018-10-24 20:06

【摘要】：由于菠萝植株密植、茎叶厚重、叶片重叠交错且含有丰富的韧性较强的菠萝叶纤维,因此,现有的菠萝叶粉碎还田机需重复作业两遍方能达到粉碎要求,存在作业难度较大且效率低、能耗高、压实土壤等问题。针对上述问题,该文设计了一种双辊式菠萝叶粉碎还田机。该机采用双辊式作业结构,配合双L改进型甩刀和直刀与定刀联合作业,一次工作有效对菠萝茎叶完成多次击打、切割作用,一次粉碎作业满足实际农艺需求。田间试验分析表明:菠萝叶粉碎合格率(粉碎后长度小于15 cm的菠萝叶所占的比重)稳定在90.8%,标准差为0.79,变异系数为6.22;菠萝头漏出地面高度合格率稳定在89.3%,标准差为1.43,变异系数为9.76;生产效率0.356 hm2/h,油耗54.14 kg/hm2,抛洒不均匀度0.59,整机工作可靠性、稳定性及生产指标均达到设计要求,满足实际农艺需求。
[Abstract]:Due to the dense planting of pineapple plants, the thick stems and leaves, the overlapping leaves of pineapple leaves and the rich fiber of pineapple leaves with strong toughness, the existing pineapple leaf crushing and returning machines need to repeat the operation twice before they can meet the requirements of crushing. There are some problems such as difficulty and low efficiency, high energy consumption and compaction of soil. In order to solve the above problems, this paper designed a two-roller mill for crushing and returning pineapple leaves. The machine adopts double roller type operation structure, combined with double L improved swinging knife and straight knife and fixed knife, which can effectively hit and cut pineapple stem and leaf many times, and once comminute to meet the actual agronomic requirement. Field experiment analysis showed that the qualified rate of pineapple leaf crushing (the proportion of pineapple leaves less than 15 cm after crushing) was stable at 90.8, the standard deviation was 0.79, the coefficient of variation was 6.22, and the qualified rate of pineapple head leakage ground height was stable at 89.3g. The difference is 1.43, the coefficient of variation is 9.76, the production efficiency is 0.356 hm2/h, the oil consumption is 54.14 kg/hm2, the unevenness is 0.59, and the whole machine is reliable. The stability and production index meet the design requirements and meet the actual agronomic requirements.
【作者单位】：中国热带农业科学院农业机械研究所;湛江市一兀农业科技有限公司;湛江市麻章区仓龙农业技术服务中心;
【基金】：广东省公益研究与能力建设专项(2017A020208011) 湛江市科技计划项目(2015A03020) 中国热带农业科学院基本科研业务费专项(1630132017003)资助
【分类号】：S224.29

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