SS7机车牵引杆座设计改进与强度计算  

Design improvement and strength calculation for traction link base for SS7 locomotive

作　　者：王德利 杨俊杰 

机构地区：[1]大同电力机车有限责任公司质量室,山西大同037038

出　　处：《机车电传动》2005年第5期37-39,共3页Electric Drive for Locomotives

摘　　要：介绍了SS7型电力机车牵引杆座的裂纹情况,应用有限元法分析了裂纹发生的原因,指出在牵引杆座前后加设加强筋板使结构的局部区域刚度失调是造成裂纹的主要原因。提出消除裂纹的改进设计和现场处理办法。即加焊12mm厚的补强板,协调局部刚度,使应力分布均匀化。Cracks in the traction link base of SS7 electric locomotive are shown and reasons are analyzed with finite element method, The main reason is pointed out that reinforced sheets are used before and after the traction link base, leading to uneven partial rigidity. It is proposed to improve the design to remove the cracks and the field solutions.The solution is to have one reinforced sheet of 12 mm welded, coordinating the partial rigidity and getting the stress distribution even.

关 键 词：SS7型电力机车 牵引杆座 裂纹 刚度匹配 设计改进 强度计算 电力机车 SS7型 牵引杆 有限元法分析 

分 类 号：U269.6[机械工程—车辆工程] TU399[交通运输工程—载运工具运用工程]