无头轧制中间坯快速剪切挤压连接装置的设计与仿真

发布时间：2019-01-11 11:01

【摘要】：随着中国城市化和工业化进程的发展,钢材的消费越来越大。我国的钢铁工业要实现结构的调整和资源节约的要求,实现我国钢铁工业由大到强的转变。同时由于国内钢材市场和国际钢材市场的激烈竞争,越来越多的钢铁企业开始关注无头轧制技术。传统的无头轧制中间坯连接技术存在连接时间长及连接设备较庞大、受坯料间隙时间的影响使生产率受到限制、无法避免的带坯切头去尾带来了成材率的损失等问题,因此有必要提出一种新型的无头轧制中间坯连接装置。首先,本文通过对无头轧制技术的分析,选择了连接时间最短的中间坯连接技术—快速剪切挤压连接法。设计出一种可以实现中间坯连接的装置,确定了中间坯连接装置各个零件之间的相互运动关系以及连接装置的结构设计。计算出中间坯连接装置的各个能力参数,对设计的部件进行了计算校核。其次,利用三维CAD软件Solidworks对中间坯快速剪切挤压连接装置进行实体建模,并在装配模式下进行装配,之后将装配体导入到有限元分析软件Ansys Workbench中进行模态分析,分析每阶模态对连接装置的影响,避免连接装置发生共振。最后,将连接装置的装配体模型导入到机械系统动力学自动分析软件Adams进行运动学仿真分析,给出主要构件的运动规律、上下刀尖的水平速度以及运动轨迹,并确保了分析结果与理论分析保持一致;再对连接装置的装配体模型进行动力学和刚柔耦合分析,查看主要部件受力情况以及应力分布状况,继而判断主要部件满足生产需要。
[Abstract]:With the development of urbanization and industrialization in China, the consumption of steel is increasing. The iron and steel industry of our country should realize the structural adjustment and the requirement of saving resources, and realize the transformation of the iron and steel industry of our country from big to strong. At the same time, due to the fierce competition between domestic steel market and international steel market, more and more steel enterprises begin to pay attention to headless rolling technology. The traditional technology of interbillet connection in headless rolling has many problems, such as long connecting time and large connecting equipment, limited productivity due to the influence of blank gap time, and the loss of finished product rate caused by cutting and tail removal of blanks, etc. Therefore, it is necessary to put forward a new type of end-less rolling intermediate billet connection device. Firstly, through the analysis of the headless rolling technology, we select the shortest connecting time of the intermediate billet connection technology-rapid shear extrusion bonding method. A device is designed to realize the connection of the intermediate billet, and the mutual kinematic relationship between the parts of the device and the structural design of the connecting device are determined. The capability parameters of the intermediate billet connection device are calculated and the designed components are calculated and checked. Secondly, the 3D CAD software Solidworks is used to model the interbillet rapid shearing extruding device, and then the assembly is assembled in the assembly mode, and then the assembly body is imported into the finite element analysis software Ansys Workbench for modal analysis. The influence of each mode on the connection device is analyzed to avoid resonance. Finally, the assembly model of the connecting device is introduced into the mechanical system dynamics automatic analysis software Adams for kinematics simulation analysis, and the motion law of the main components, the horizontal velocity of the upper and lower blade tips and the motion track are given. The results of the analysis are consistent with the theoretical analysis. Then the dynamic and rigid-flexible coupling analysis of the assembly model of the connecting device is carried out to see the stress situation and stress distribution of the main components, and then to judge that the main components meet the production needs.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TG333

【相似文献】