芦苇草方格铺设机横向间歇压草机构的设计与试验  

Transverse intermittent straw-pressing mechanism of the paving machine for reed straw checkerboard

作　　者：安睿 葛云[1,2] 郑一江 程建军 曾祥银[1,2] 金满玉 AN Rui;GE Yun;ZHENG Yijiang;CHENG Jianjun;ZENG Xiangyin;JIN Manyu(College of Mechanical and Electrical Engineering,Shihezi University,Shihezi 832000,China;Xinjiang Production and Construction Corps Key Laboratory of Modern Agricultural Machinery,Shihezi 832000,China;College of Water Conservancy and Architectural Engineering,Shihezi University,Shihezi 832000,China)

机构地区：[1]石河子大学机械电气工程学院,石河子832000 [2]现代农业机械兵团重点实验室,石河子832000 [3]石河子大学水利建筑工程学院,石河子832000

出　　处：《农业工程学报》2025年第7期36-46,共11页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金项目(52065057)。

摘　　要：针对芦苇草方格铺设作业质量不稳定的现象,以芦苇草方格横向铺设为研究对象,提出一种横向间歇压草与纵向连续压草结合的“T”式草方格横纵协同铺设模式,并在这种铺设模式下,针对横向压草必须避开先行成型的纵向芦苇沙障和相邻成型的横向芦苇沙障,以及零速压草两个技术要求,通过分析人工横向压草动作及运动轨迹,构建机构运动学模型,结合芦苇草方格农艺要求,确定了横向间歇压草机构设计的优化目标,基于MATLAB平台编写辅助优化界面并得到一组合适的机构参数;针对压草挤压阶段芦苇秸秆已被折断和入沙阶段阻力较大的问题,构建压草刀具与沙土和芦苇秸秆之间的力学模型,确定压草刀具的结构参数。试验结果表明:横向间歇压草机构实际运动轨迹、ADAMS仿真轨迹和理论设计轨迹基本一致,芦苇草方格横向列深度合格率达86.4%,边厚合格率达84.9%。横向压草性能相对稳定可靠,验证了理论设计的正确性和横向间歇压草机构的可行性,研究结果可为芦苇草方格铺设机横向压草机构的设计与优化提供参考。The straw checkerboard is one of the most effective engineering sand fixations in Xinjiang of western China.Reed straw can often be utilized to produce the sand barriers of straw checkerboard,according to the regional conditions.Sand break and water conservation can be expected to serve as excellent ecological benefits.However,manual paving protocols of the reed straw checkerboard cannot fully meet the large-scale production at present,due to the high labor intensity and cost during strawpressing operation.Alternatively,mechanical paving of the reed straw checkerboard can be expected to ensure the performance of its sand fixation.However,the existing research focuses mainly on the paving machinery in the longitudinal column of the straw checkerboard.By contrast,the transverse straw-pressing mechanism can be required for a certain spacing distance to press the straw.Among them,the straw is firstly tied in the shape of squares on the desert surface,and then interlaced by the equally spaced longitudinal and transverse columns.A grid of straw checkerboard is often formed to be generally laid first in the longitudinal columns in the same direction,as the forward direction of the machine,and then in the transverse columns.The existing transverse paving machinery usually combines the straw-pressing and straw-laying machine for instantaneous speed matching to realize the transverse column of the paving straw checkerboard.It is still lacking in the response relationship among the operating parameters of the transverse column straw-pressing mechanism on the quality of straw-pressing operation,as well as the motion and mechanical models.The paving quality of the straw checkerboard can dominate in the evaluation of the performance of a transverse straw-pressing mechanism.Taking the transverse paving of the reed straw checkerboard as the research object,this study aims to propose a"T"type straw checkerboard of the transverse and longitudinal synergistic paving mode.The transverse intermittent and longitudinal continuous straw

关 键 词：农业机械 防风固沙 草方格 横向间歇 压草机构 

分 类 号：S225.99[农业科学—农业机械化工程]