液压升降式打穴机构设计及运动学分析  

Design and kinematic analysis of hydraulic lift hole punching device

作　　者：马文霄 葛云[1] 沈从举[2,3] 贾首星 李帆[2,3] 代亚猛 张景[2,3] MA Wen-xiao;GE Yun;SHEN Cong-ju;JIA Shou-xing;LI Fan;DAI Ya-meng;ZHANG Jing(College of Mechanical and Electrical Engineering,Shihezi University,Shihezi 832000,China;Mechanical Equipment Research Institute,Xinjiang Academy of Agricultural and Reclamation Science,Shihezi 832000,China;Key Laboratory of Northwest Agricultural Equipment of Ministry of Agriculture and Rural Affairs,Shihezi 832000,China)

机构地区：[1]石河子大学机械电气工程学院,新疆石河子832000 [2]新疆农垦科学院机械装备研究所,新疆石河子832000 [3]农业农村部西北农业装备重点实验室,新疆石河子832000

出　　处：《甘肃农业大学学报》2020年第5期227-234,共8页Journal of Gansu Agricultural University

基　　金：国家重点研发计划项目(2014YFD0701404);新疆兵团重大科技项目(2013AA0001-4).

摘　　要：【目的】为了满足果园气爆深松施肥机快速打穴的技术要求,克服打穴过程中遇到坚硬犁底层或土壤板结层打穴阻力大、打穴时间长的问题,设计了一种液压升降式打穴机构.【方法】分析了液压升降式打穴机构的工作原理,通过逆向分析确定了液压缸的行程及活塞杆顶端的轨迹;利用ADAMS软件分析了在工作过程中运动位移、运动速度和时间的关系,验证了机构的可靠性和稳定性.【结果】通过田间试验结果表明:在测定土壤坚实度最大值3.61 Mpa、平均值1.95 Mpa作业条件下,打穴深度达到650 mm时,平均打穴时间为8.42 s,达到了设计的技术要求.【结论】该研究为液压升降式打穴机构的优化设计提供了理论依据.【Objective】In order to meet the technical requirements for quick hole punching of orchard air-blasting subsoil fertilizer,and to overcome the problems of large hole resistance or extra long time of hole punching encountered in the hard plow or soil compaction layer,a hydraulic lifting type of hole punching device was designed.【Method】The working principle was analyzed,the stroke of the hydraulic cylinder and the trajectory of the top of the piston rod were determined through reverse analysis.The relationship between the movement displacement,the speed of movement and the time during the work were analyzed using ADAMS software,and the reliability and stability of the mechanism were verified.【Result】The results from field tests showed that,the designed device could meet the design technical requirements under the operating conditions(maximum soil compactness of 3.61 Mpa,average 1.95 Mpa)and the hole depth reached 650 mm,the average hole time was 8.42 s.【Conclusion】This research provides a theoretical basis for the optimal design of the hydraulic lifting punching device.

关 键 词：液压 土壤 打穴机构 运动学 ADAMS 试验 

分 类 号：S224.21[农业科学—农业机械化工程]