二辊楔横轧颚式破碎机偏心轴成形数值模拟  

Numerical simulation of cross wedge rolling for jaw crusher eccentric shaft

作　　者：杨永明[1] 郭亮[1] 米涛[1] 赵军[1] 

机构地区：[1]北华航天工业学院材料工程系,河北廊坊065000

出　　处：《锻压技术》2013年第3期64-68,共5页Forging & Stamping Technology

基　　金：河北省科学技术研究与发展计划项目(11212143);河北省教育厅青年基金资助项目(2011252);河北省教育厅基金资助项目(2007403和Z2010203);华南理工大学国家金属材料近净成形工程技术研究中心开放基金资助项目(2011010);河北省自然科学基金资助项目(E2013409002)

摘　　要：提出了一种颚式破碎机偏心轴楔横轧成形新工艺。利用有限元软件Deform-3D对楔横轧颚式破碎机偏心轴进行数值模拟,分析了其成形过程、应变场分布及工艺特点。模拟结果表明:颚式破碎机偏心轴楔横轧工艺是可行的;在同心轴变形为偏心轴过程中,非轧制区金属等效应变在变形初期较大,其值为1.8;原始坯料在与轧辊基圆及导板接触时发生较大的挤压变形,应该采取工艺措施控制。本文为大直径偏心轴高效化、节能化制坯提供了理论依据。A new technology for eccentric shaft of iaw crusher was proposed. By using finite element method of Deform- ,3I） software, the cross wedge rolling of forming eccentric shaft of jaw crusher was simulated, the deformation process, and the distribution of strain and the technology characteristics of eccentric shaft of iaw crusher were analyzed. Simula tion results indicate that the new methodology of cross wedge rolling of eccentric shaft for jaw crusher is feasible; when thc concentric shaft becomes the eccentric shaft, metal equivalent strain in non rolling zone is larger, up to 1.8 at the beginning of deformation. The raw material has larger contact deformation when it comes into contact with the roller base circle and guide plate, and these should be controlled by taking measures. The result provides a theory foundation for forming large-sized eccentric shaft with high efficient and saving energy.

关 键 词：颚式破碎机 偏心轴 楔横轧 有限元 

分 类 号：TG335[金属学及工艺—金属压力加工]