稻秆圆捆机辊盘式卷捆机构的设计及参数优化  

Design and parameters optimization of roll-disk baling mechanism for rice straw round baler

作　　者：李叶龙[1,2] 王德福[1] 王沫[1] 李东红[1] 张全超[1] 雷军乐[1] 

机构地区：[1]东北农业大学工程学院,哈尔滨150030 [2]罗定职业技术学院机电工程系,罗定527200

出　　处：《农业工程学报》2017年第6期27-34,共8页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金资助项目(51405076);高等学校博士学科点专项科研基金资助项目(20124105110004);黑龙江科技攻关项目(GC13B604)

摘　　要：为消除中小型钢辊式圆捆机收获完整稻秆时出现的堵塞现象及降低其卷捆功耗,设计了一种钢辊与侧圆盘组合式卷捆机构(简称辊盘式卷捆机构),并以此为基础自制了辊盘式卷捆机构试验装置且进行试验。选择影响辊盘式卷捆机构卷捆性能的主要因素:圆盘直径、钢辊转速、喂入量、长宽比(稻秆长度与卷捆室宽度的比值)为试验因素,以草捆形成率(草捆顺利形成次数与总试验次数的比值)和卷捆功耗为评价指标进行四因素五水平正交旋转组合试验。试验表明各因素影响草捆形成率的主次顺序为圆盘直径>喂入量>钢辊转速>长宽比;影响卷捆功耗的主次顺序为喂入量>钢辊0.75100%62.7 kJ/,此时草捆形成率为,卷捆功耗为捆,相比钢辊式圆捆机无堵塞现象发生,卷捆功耗降低。研究结果可为辊盘式圆捆机的结构及作业参数优化提供参考依据。For efficient use of rice straw feed resources, rice straw bale silage technique has been developed in some countries like Japan and Korea. In China, rice straw silage is used very little, and rice straw is usually used as poor quality feed because of loose outdoor stacking, which leads to lower nutrient composition and poor palatability. In recent years, rice straw bale silage is being emphasized with the development of animal husbandry, rice combines and round balers. But small and medium-sized steel-roll round balers are main round balers developed in China, and it is easy to result in blocking in the head-feed rice combine （applied widely in rice harvesting） when round baler bales the intact rice straw. When harvesting intact rice straw using domestic small and medium-sized steel-roll round balers, in order to eliminate the blocking problem and reduce the baling power consumption, a baling mechanism which combined steel rolls and side disk was designed （called roll-disk baling mechanism for short）. Then, the baling process of the roll-disk baling mechanism was analyzed from the aspects of mechanical and power consumption characteristics. Through mechanical analysis, the friction resistance of rice straw in baling process could be reduced, and the advance movement of rice straw in baling process could be boosted with the side disk, which would be beneficial to boost the formation of rotating straw bale core （the key of forming straw bale）. Through power consumption analysis and pre-experiment, major factors influencing the baling performance of the roll-disk baling mechanism was decided as follows： disk diameter 〉 rotational speed of steel roll 〉 feeding quantity 〉 length-width ratio （the ratio of straw length to width of baling chamber）. These factors were also selected as the experimental factors, the straw baling formation rate （the ratio of number of straw baling formation to total number of experiment） and baling power consumption were used as the evaluation indices, and 4-fact

关 键 词：参数 优化 试验 圆捆机 卷捆机构 钢辊 侧圆盘 功耗 

分 类 号：S225.4[农业科学—农业机械化工程]