复杂结构体的螺栓组预紧工艺研究  

Research on tightening process of bolt group for complex structures

作　　者：程燕[1,2] 黄凡康 许晋 李亮[1] CHENG Yan;HUANG Fankang;XU Jin;LI Liang(Key Laboratory of Vehicle Transmission,China North Vehicle Research Institute,Beijing 100072,China;School of Transportation Science and Engineering,Beihang University,Beijing 100191,China;School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]中国北方车辆研究所车辆传动重点实验室,北京100072 [2]北京航空航天大学交通科学与工程学院,北京100191 [3]华中科技大学机械科学与工程学院,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2023年第11期9-13,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国防基础研究资助项目(20195208003)。

摘　　要：为确定螺栓组预紧工艺对重型越野车辆传动系统装配精度的影响,建立了传动系统预紧工艺仿真模型,分析了螺栓预紧工艺对装配误差的影响方式,设计并优化了螺栓组装配工艺方案.基于有限元仿真将不同装配工艺方案对装配误差的影响进行了对比,研究结果表明:当使用优化预紧顺序和三级预紧(30%,80%,100%)时的装配误差最小,本研究可为复杂零件装配工艺设计提供参考.To determine the influence of bolt group tightening process on the assembly accuracy of the transmission system of heavy off-road vehicles,a tightening process simulation model of the transmission system was established.The influence of bolt tightening process on assembly errors was studied,and the assembly process plan of bolt group was designed and optimized.Based on finite element simulation,the impact of different assembly process solutions on assembly errors was compared.Research results show that the assembly error was the minimum when using optimized preloading sequence and three-level preloading(30%,80%,100%),and this study provides a reference for the design of complex parts assembly processes.

关 键 词：预紧工艺 螺栓连接 装配精度 有限元仿真 越野车辆 

分 类 号：TH17[机械工程—机械制造及自动化]