烧结机台车体应力分析及优化设计  

Stress Analysis and Optimization Design of Sintering Machine Table Body

作　　者：谢鑫[1] 陆松年[2] 叶恒棣[1,2] 刘吉普[1] 

机构地区：[1]湘潭大学机械工程学院,湘潭411105 [2]中冶长天国际工程有限责任公司,长沙410007

出　　处：《机械设计与研究》2013年第3期131-133,138,共4页Machine Design And Research

摘　　要：台车是是在冷热循环的工况下连续工作的,通过去某烧结厂现场测试,知道稳定工况下台车体在上轨道14号风箱位置开始升温一直到机尾卸料处,其余的时候处在降温阶段;在上轨道14号风箱左右受机械载荷的影响大,在机尾卸料处受机械载荷和温度载荷的联合作用,在下轨道受温度载荷的影响,所以为了弄清烧结机台车体在不同阶段不同边界条件下的应力水平以及变形情况,通过运用有限元软件Ansys分别对上面三种工况进行强度刚度分析。结果表明机械应力大于热应力,在变形方面,热变形比机械变形的影响要大。以许用应力和刚度作为约束条件,台车体重量为目标函数用最优化理论和方法进行结构优化设计;来提高其承载能力或减少重量,提高生产率,降低制造成本。The table body is continuouly working under the cold and heat cycle. Through the testing of a sintering plant, site knowing that under the steady working condition the body in orbit 14 bellows position starts to heat up until the discharge place, and the rest of the time is in cooling stage. In orbit around 14 bellows the body is greatly influ- enced by the mechanical load, and of the discharge place, it is octed by both the mechanical load and temperature load jaintly. However in next orbit, its is influenced only by temperature load. There fore, in order to make clear about the stress level and deformation of the sintering machine table body in different stages of different boundary conditions, the fi- nite element software Ansys is used to analyse the strength and the stiffness for three conditions respectively. The results show that mechanical stress is greater than the thermal stress, and thermal deformation effect is bigger than mechanical deformation. Taking the allowable stress and stiffness as the constraint conditions and taking the table body weight as the objective function, the structure is optimally design with optimization theory and method. Thus it can improve the loading capacity or decrease the weight of table body, increase the productivity and reduce the manufacturing cost.

关 键 词：烧结机 优化设计 台车体 ANSYS 

分 类 号：TH123.4[机械工程—机械设计及理论]