冲击破岩掘进机工作机构作业范围及有限元分析  

Operating Range and Finite Element Analysis of Working Mechanism of Impacting-crushing-rock Roadheader

作　　者：刘勇 李晓豁 Liu Yong;Li Xiaohuo

机构地区：[1]鞍山森远路桥股份有限公司 [2]广东文理职业学院

出　　处：《工程机械》2022年第7期37-42,I0015,共7页Construction Machinery and Equipment

摘　　要：以冲击破岩掘进机工作机构为研究对象,利用Pro/E建立其三维实体模型,基于旋转矩阵法进行数值计算,求解不同作业姿态下的工作轨迹,基于ADAMS建立的虚拟样机模型进行运动学分析,仿真得到工作机构的包络图和液压冲击锤锤点的位移曲线图,基于ANSYS对常用作业姿态进行有限元分析,得到不同步工况和同步工况的应力分布云图和变形分布云图。研究表明:旋转矩阵法和虚拟样机法所确定的性能参数误差在允许范围内,工作机构的运动规律、作业范围和强度满足设计需求,各部件铰接处为应力集中区域易发生疲劳破坏,所得结果为后续工作机构的结构优化以及力学特性研究提供依据。Taking the working mechanism of the impacting-crushing-rock roadheader as the research object,its three-dimensional solid model is established using Pro/E,and the numerical calculation is carried out based on the rotation matrix method to solve the working trajectories under different working postures.The kinematics analysis is carried out based on the virtual prototype model established by ADAMS,and the envelope diagram of the working mechanism and the displacement curve of the hammer point of the hydraulic impact hammer are obtained through simulation.The finite element analysis of common working postures is carried out based on ANSYS to obtain stress distribution clouds and deformation distribution clouds for the asynchronous and synchronous working conditions.The research shows that the errors of the performance parameters determined by the rotation matrix method and the virtual prototype method are within the permissible limits,the motion pattern,operating range and strength of the working mechanism meet the design requirements,and the hinge points of each component are stress concentration areas,which are prone to fatigue failure.The results obtained provide a basis for the structural optimization and mechanical property research of the follow-up working mechanism.

关 键 词：工作机构 旋转矩阵 虚拟样机 包络图 应力 

分 类 号：TU621[建筑科学—建筑技术科学]