采煤机液压拉杆瞬态动力学仿真分析
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摘要
为了研究采煤机液压拉杆载荷的变化规律,采用三维实体建模与有限元仿真方法,建立了采煤机整机动力学仿真模型,分析了滚筒动载荷作用下液压拉杆的载荷变化特性,得出4个拉杆的最大应力和对应变形量,通过与液压拉杆的材料需用强度对比,证明了液压拉杆的可靠性和安全性。
In order to studying loading variation of hydraulic pressure pull rod of coal cutter,and then three dimensions solid model building and finite element simulation were applied,the dynamics simulation model of complete machine of coal cutter,and then loading variation characters of hydraulic pressure pull rod under dynamical loading of roller,the maximal stress and it's corresponding deformation of all four pull rod were put forward,according strength comparison of hydraulic pressure pull rod,the reliability and safety of hydraulic pressure pull rod were verified.
In order to studying loading variation of hydraulic pressure pull rod of coal cutter,and then three dimensions solid model building and finite element simulation were applied,the dynamics simulation model of complete machine of coal cutter,and then loading variation characters of hydraulic pressure pull rod under dynamical loading of roller,the maximal stress and it's corresponding deformation of all four pull rod were put forward,according strength comparison of hydraulic pressure pull rod,the reliability and safety of hydraulic pressure pull rod were verified.
引文
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[2]宋泽锋,王维发,王培科.采煤机液压拉杠断裂原因[J].煤矿机械,2010,31(11):109-111.
[3]邵俊杰.采煤机数字化建模与关键零部件有限元分析[D].西安:西安科技大学,2009.
[4]毛君,姜鹏,谢苗.斜切状态下滚筒采煤机液压拉杠力学分析与寿命预测[J].工程设计学报,2015,22(1):95-100.
[5]张强,吴泽光,周曰勇,等.采煤机液压拉杠力学检测系统研究[J].工程设计学报,2017,24(5):595-600.
[6]郝志勇,雷耀龙,毛君,等.采煤机机身联接螺栓强度分析与疲劳寿命仿真[J].系统仿真学报,2017,29(7):1481-1488.
[7]朱科,赵鑫,谢杰,等.HS220-27性能研究及技术应用[J].山东工业技术,2017(16):56,150.
[8]盛永林,翟雨生,刘露露.MG400/920-WD 型采煤机的改进设计[J].煤矿机械,2015,36(4):207-208.
[9]邓娟,郑晓春,孙佳.超级螺栓在采煤机摇臂上的应用[J].煤矿机械,2017,38(7):122-123.
[10]陈洪月,李永红,邓文浩,等.滚筒采煤机液压拉杆受力分析[J].工程设计学报,2018,25(1):118-122.
[11]毛君,刘歆妍,陈洪月,等.基于EDEM的采煤机滚筒工作性能的仿真研究[J].煤炭学报,2017,42(4):1069-1077.
[12]张洪才.ANSYS 14.0理论解析与工程应用实例[M].北京:机械工业出版社,2013.
[13]白学勇.采煤机截齿冲击动力学性能分析[D].西安:西安科技大学,2010.
[14]周绪波.基于相似理论的龙门起重机主梁架有限元分析及优化设计[D].长沙:中南林业科技大学,2016.
[15]路娜.基于ANSYS的煤炭采样机采样臂动力学分析[D].西安:长安大学,2014.