1LF-335型液压翻转犁悬挂架有限元分析  

Finite element analysis of suspension frame of 1LF-335 hydraulic tilting plough with ansys software

作　　者：李晓斌[1] Li Xiaobin(College of Engineering,Shanxi Agricultural University,Taigu 030801,China)

机构地区：[1]山西农业大学工学院

出　　处：《山西农业大学学报（自然科学版）》2019年第5期96-100,共5页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金：国家重点研发计划项目(2016YFD0701801)

摘　　要：[目的]本文旨在提高1LF-335型液压翻转犁悬挂架的稳定性和可靠性,为研究不同工作状态下该悬挂架的结构强度及受力后的应力应变情况提供理论依据。[方法]利用CREO4.0建立该液压翻转犁悬挂架的模型,并导入ANSYS Workbench中进行静力学分析。[结果]应力分析表明,一般工况下,悬挂架所受应力均小于120 MPa,在横梁U型板上螺栓与法兰相交处应力最为集中,达116.27 MPa,小于材料的许用应力值,满足强度要求。与牵引梁相比,悬挂架所受应力较小。液压翻转工况下,竖直情况时应力集中在钢架法兰盘与螺栓相交处,达70.06 MPa;完成翻转情况时,最大应力同样集中在在钢架法兰盘与螺栓相交处,达97.86 MPa;两者所受应力均未达到材料的许用应力值,满足强度要求。位移分析表明,一般工况下,悬挂架的形变位移量在牵引梁端部最大,在工作过程中悬挂架的形变量远小于犁架;在液压翻转工况中,竖直情况下悬挂架右侧下拉板底部边缘处形变量最大,达0.25 mm;翻转完成时,达0.23 mm ,上拉板的形变量均不足0.1 mm。[结论]实际加工中应提高焊接精度与强度,选取直径较大的螺栓以加强其结构强度,进一步提高悬挂架的可靠性与稳定性。[Objectives]This study was aimed to improve the stability and reliability of 1LF-335 hydraulic plough hanger,and to provide a theoretical basis for studying the structural strength,stress,and strain of the suspension under different working conditions.[Methods] CREO 4.0 was used to build the model of the hydraulic turning plough hanger and introduced it into the ANSYS Workbench for static analysis.[Results] The stress analysis showed that,the stress on the suspension frame was less than 120 MPa under normal working conditions.The highest stress was observed at the intersection of the bolt and the flange on the U-shaped plate of the beam,which was reached up to 116.27 MPa and was lower than the allowable stress value of the material and met the strength requirement.The suspension was less stressed compared to traction beam.Under the condition of hydraulic overturning,the stress was concentrated at the intersection of the flange and the bolt of the steel frame in the vertical condition,which was 70.06 MPa.When the overturning was completed,the greatest stress was also concentrated at the intersection of the flange and the bolt of the steel frame at 97.86 MPa.Both stresses under different conditions did not reach the allowable stress value of the material,and met the strength requirements.The displacement analysis showed that,the largest deformation displacement of the suspension was detected at the end of the traction beam under normal working conditions,and the shape variation of the suspension was much smaller than that of the plough during the working process.In the hydraulic overturning condition,the suspension was right in the vertical case,and the shape of the bottom edge of the side pull-down plate was the largest at 0.25 mm.When the rollover was completed,it reached 0.23 mm,and the altered shape of the pull-up plate is less than 0.1 mm.[Conclusion] In the actual processing,the welding precision and strength should be improved,and the bolts with larger diameter should be selected to strengthen the structural

关 键 词：液压翻转犁 悬挂架 有限元分析 ANSYS 

分 类 号：S222.123[农业科学—农业机械化工程]