锤刀式割草机割草装置运动平衡性计算和分析
|
摘要
针对堤坡杂草较长、硬度较高且难清除的问题,设计一种新型锤刀式割草机。应用ANSYS Workbench对该割草装置进行模态分析,其在滚轴单独工作状态下运动良好,并不会造成共振;但对滚轴刀具进行动平衡计算时,发现其在正常工作状态下是动不平衡的。对此,提出采用补料法进行质量增补,以使割草装置尽量达到动平衡状态。通过ANSYS Workbench分析和计算,找到机械结构存在的问题并对其进行改进,提高了割草装置的运动平衡性。
A new hammer-knife lawn mower was designed to solve the problems of long weeds,high hardness and difficult removal on embankment slopes.ANSYS Workbench is used to analyze the modal of the mower.The motion of the roller is good under the working condition of the roller alone,and it will not cause resonance.However,it is found to be unbalanced under normal working conditions when the dynamic balance theory is applied to calculate the dynamic balance of the rolling tool.Therefore,the feeding method was proposed to improve the quality of the mowing device in order to achieve the dynamic equilibrium of the mowing device.Through the analysis and calculation of ANSYS Workbench,the existing problems of mechanical structure are identified and the structure is thus improved to improve the stability of the mower.
A new hammer-knife lawn mower was designed to solve the problems of long weeds,high hardness and difficult removal on embankment slopes.ANSYS Workbench is used to analyze the modal of the mower.The motion of the roller is good under the working condition of the roller alone,and it will not cause resonance.However,it is found to be unbalanced under normal working conditions when the dynamic balance theory is applied to calculate the dynamic balance of the rolling tool.Therefore,the feeding method was proposed to improve the quality of the mowing device in order to achieve the dynamic equilibrium of the mowing device.Through the analysis and calculation of ANSYS Workbench,the existing problems of mechanical structure are identified and the structure is thus improved to improve the stability of the mower.
引文
[1]李江国.滚切式除草机的研究[D].保定:河北农业大学,2006
[2]陈忠,司庆功,代振明,等.堤坡平地两用型手扶式割草机的研制[J].人民黄河,2008(3):21-22.
[3]赵清泉.我国牧草机械发展情况及趋势[J].养殖技术顾问,2011(1):183.
[4]张乐佳.国内外主要牧草收获机械发展状况[J].农业工程,2014,4(5):20-22
[5]向凯.锤刀式割草机的设计与分析[D].武汉:湖北工业大学,2017.
[6]娄玉印,朱建华,刘光浩.新型连杆式割草机的结构设计与运动学分析[J].农机化研究,2018,40(4):41-46.
[7]黄炎,赵满全,黄鹏飞.前置式双圆盘割草机主轴有限元分析---基于ANSYS Workbench[J].农机化研究,2013,35(8):26-29,34.
[8]刘曦泽,段滋华,李多民.转子动平衡技术的研究现状和进展[J].广东石油化工学院学报,2012,22(3):69-72,80.
[9]张雷.锤片式粉碎机转子的动力学分析[D].郑州:河南工业大学,2014.
[2]陈忠,司庆功,代振明,等.堤坡平地两用型手扶式割草机的研制[J].人民黄河,2008(3):21-22.
[3]赵清泉.我国牧草机械发展情况及趋势[J].养殖技术顾问,2011(1):183.
[4]张乐佳.国内外主要牧草收获机械发展状况[J].农业工程,2014,4(5):20-22
[5]向凯.锤刀式割草机的设计与分析[D].武汉:湖北工业大学,2017.
[6]娄玉印,朱建华,刘光浩.新型连杆式割草机的结构设计与运动学分析[J].农机化研究,2018,40(4):41-46.
[7]黄炎,赵满全,黄鹏飞.前置式双圆盘割草机主轴有限元分析---基于ANSYS Workbench[J].农机化研究,2013,35(8):26-29,34.
[8]刘曦泽,段滋华,李多民.转子动平衡技术的研究现状和进展[J].广东石油化工学院学报,2012,22(3):69-72,80.
[9]张雷.锤片式粉碎机转子的动力学分析[D].郑州:河南工业大学,2014.