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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。
Through the analysis of the existing structure of plate shears at home and abroad, a new type of single-hydraulic cylinder driven hydraulic rolling-shear plate shearer is proposed innovatively to obtain the composite linkage mechanism of PR-11RⅢ rod group Simplify the model. On the basis of the simplified model, the coordinate transformation method is used to get the coordinate expression of any point on the cutterhead to promote the use of hydraulic rolling shear of 2 000 mm single hydraulic cylinder driven by a large machinery limited company Cutting machine R & D projects as the basis, with the help of MATLAB software kinematic simulation of the shear mechanism. The results of the simulation results show that the trajectory of the key points and the calculation results of the overlap amount of the upper and lower cutting edges are in line with the actual production requirements, which further confirms the rationality and kinematics of the design of the hydraulic single-cylinder hydraulic shear panel shearing mechanism Correctness