新型Ⅲ级连杆机构液压滚切剪研究  

Hydraulic rolling shear research in a new Ⅲ-level linkage mechanism

作　　者：杨彦龙[1] 楚志兵[1] 魏栋[1] 崔鹏鹏[1] 吕阳阳[1] 

机构地区：[1]太原科技大学重型机械教育部工程研究中心,山西太原030024

出　　处：《机械设计》2017年第1期100-104,共5页Journal of Machine Design

基　　金：国家973计划资助项目(2012CB722800);国家自然科学基金资助项目(51375235);校博士基金资助项目(20122017);校研究生科技创新资助项目(20145004)

摘　　要：通过对国内外现有的板材剪切机结构的原理分析,创新性地提出一种新型的单液压缸驱动的液压滚切式板材剪切机,获得PR-11RⅢ级杆组的复合连杆机构简化模型。在简化模型的基础上利用坐标转换的方法得出剪切机构上刀台上任意点的坐标表达式,以推广应用的某大型机械有限公司2 000 mm单液压缸驱动的液压滚切式板材剪切机研发项目为依托,借助MATLAB软件对剪切机构进行运动学仿真分析。仿真结果得出关键点的轨迹及上下剪刃重叠量的计算结果均符合实际生产要求,进一步证实了该新型单液压缸驱动的液压滚切式板材剪切机构设计的合理性与运动学模型的正确性。A novel rolling shear mechanism driven by one hydraulic cylinder was proposed creatively according to the anal- ysis of the present hydraulic shear mechanism domestic and overseas. The simplified model of PR-11R Ⅲ-level composite rod linkage mechanism was obtained. The arbitrary coordinate expressions of the points on the upper shear blade of the rolling shear mechanism were achieved using the coordinate transformation method. Depending on the development project on extensive popularization of 2 000 mm rolling shear mechanism driven by one hydraulic cylinder for some large machine company, the kinematical simulation analysis was performed with the software MATLAB. The results of the key points trajectory and the value of the overlap between the upper and lower shear blade met the design requirements. The reasonable of the rolling shear mecha- nism and the correctness of the kinematical analysis were proved.

关 键 词：复合连杆机构 运动学分析 坐标转换法 仿真 

分 类 号：TG333[金属学及工艺—金属压力加工]