摘要
为了提升无模辗压设备的加工能力,可以辗压更大尺寸的盘型件,以辗压设备的关键零件辗压头为研究对象,针对研究目标提出新型辗压头结构模型。根据其在辗压过程中的受力特点进行分析并简化模型,提出假设,计算出辗压头预期所承受的载荷,运用ANSYS Workbench软件进行有限元分析,得到了预期工况下辗压头的应力和变形。结果表明,新型辗压头应力情况符合要求,但是其变形量过大,不满足要求。在此基础上,以2种不同方案分别对其进行改进,得到2个改进的辗压头结构并进行有限元分析。最终改进方案2的辗压头结构达到了预期要求,解决了之前辗压头承载后变形过大的问题。这使得辗压设备的关键零件辗压头与设备的目标加工能力相匹配,同时也保障了辗压设备的安全性。
In order to improve the processing capacity of mouldless rolling equipment and roll the discal part with larger sizes,for the rolling head being the key part of rolling equipment,a new structure model of rolling head was proposed according to the research goal,and it was analyzed and simplified according to its loading characteristics during the rolling process,finally,the expected loading on the rolling head was calculated by hypotheses. Then,the finite element analysis was conducted by software ANSYS Workbench,and the stress and deformation of the rolling head under expected conditions were obtained. The results show that the stress of the new rolling head meets the requirements,but its deformation is too large to meet the requirements. Based on this,it was improved by two different methods,and two optimized rolling head structures were obtained and analyzed by finite element method. Finally,the rolling head structure of the second optimization scheme meets the expected requirements and solves the problem of excessive deformation after the rolling head is loaded previously,which enables the key parts of rolling equipment,namely the rolling head,to match the target processing capacity of equipment and also guarantees the safety of rolling equipment.
作者
孙正基
朱卫东
Sun Zhengji;Zhu Weidong(Beijing Research Institute of Mechanical&Electrical Technology Ltd.,Beijing 100083,China)
出处
《锻压技术》
CAS
CSCD
北大核心
2020年第5期122-127,共6页
Forging & Stamping Technology
基金
国家科技重大专项(2018ZX04044-001)。
关键词
辗压头
无模辗压
盘型件
应力
变形
rolling head
mouldless rolling
discal part
stress
deformation
