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仿形弹性镇压辊减粘防滑结构设计与试验
  • ISSN号:1000-1298
  • 期刊名称:《农业机械学报》
  • 时间:0
  • 分类:S222.23[农业科学—农业机械化工程;农业科学—农业工程]
  • 作者机构:[1]吉林大学生物与农业工程学院,长春130025, [2]吉林大学工程仿生教育部重点实验室,长春130025
  • 相关基金:“十二五”国家科技支撑计划资助项目(2014BAD06B03); 国家自然科学基金资助项目(51305158)
中文摘要:

针对仿形弹性镇压辊粘附土壤和滑移率较大的问题,基于典型土壤动物蚯蚓的体表柔性几何特征,设计了一种适用于仿形弹性镇压辊的减粘防滑结构,其主体是橡胶凸起,同时采用肋条结构对其进行固定。这种结构具有粘附土壤少、滑移率低、镇压力分布均匀、碎土效果好等优点。通过理论计算和运动学分析对减粘防滑结构的运动过程进行研究,得出橡胶凸起的特征方程,以及凸起高度和肋条高度的取值范围。通过三因素三水平正交组合试验得出影响镇压辊粘附土壤量因素的显著性顺序依次为:凸起高度、肋条高度、载荷;影响镇压辊滑移率因素的显著性顺序依次为:肋条高度、凸起高度、载荷;得到减粘防滑结构的最佳参数组合为:载荷450.0 N、凸起高度13.9 mm、肋条高度15.1 mm,并找到各因素对粘附土壤质量和滑移率的影响。田间验证试验和对比试验得到镇压辊的粘附土壤质量为39.2 g,滑移率为3.89%,分别比没有减粘防滑结构的镇压辊降低60.1%和54.3%。

英文摘要:

During the working process of press roller,the deficiencies in the soil adhesion and the large slip rate on the profiling elastic press roller are existed. Based on the flexible geometry features of the typical soil animal body surface,the reducing soil adhesion and anti-slip structure were designed to solve the problem. The structure consists of rubber bulges,which are fixed by the existing bionic rib structure.This structure has the advantages of less soil adhesion,lower slip rate,more uniform pressure distribution and better soil crushing effect. The movement process of the reducing soil adhesion and anti-slip structure was researched by using theoretical calculation and kinematics analysis,the characteristic equation of rubber bulges and the value ranges of bulge height and rib height were obtained. The orthogonal combination experiments of three factors and three levels were designed and performed. The results showed that the primacy sequence of the experiment factors influencing soil adhesion was: rubber bulge height( H),rib height( L),total loads( F) and the primacy sequence of the experiment factors influencing slip rate was: rib height, rubber bulge height and total loads. Optimal levels of the experiment factors influencing soil adhesion and slip rate were F of 450. 0 N,H of 13. 9 mm,L of15. 1 mm. At the same time,verification tests and comparison tests were conducted in the field. The results showed the soil adhesion quality was 39. 2 g,the slip rate was 3. 89%,compared with the roller without the reducing soil adhesion and anti-slip structure,the soil adhesion quality was reduced by60. 1% and the slip rate was reduced by 54. 3%.

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期刊信息
  • 《农业机械学报》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国农业机械学会 中国农业机械化科学研究院
  • 主编:任露泉
  • 地址:北京德胜门外北沙滩一号6号信箱
  • 邮编:100083
  • 邮箱:njxb@caams.org.cn
  • 电话:010-64882610 64867367
  • 国际标准刊号:ISSN:1000-1298
  • 国内统一刊号:ISSN:11-1964/S
  • 邮发代号:2-363
  • 获奖情况:
  • 荣获中国科协优秀期刊二等奖,1997~2000年连续4年获中国科协择优资金,被列入中国期刊方阵,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘(网络版),英国农业与生物科学研究中心文摘,荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:42884