摘要
针对工程中常见的双螺母螺栓连接,建立了螺栓上下螺母拧紧力矩与预紧力之间的关系,并验证了其正确性,通过横向振动实验得到了不同参数条件下双螺母螺栓连接剩余预紧力的百分比,分析了在横向载荷作用下振动幅值以及上下螺母拧紧力矩配比对双螺母螺栓连接松动的影响,给出了双螺母螺栓连接中上下螺母的最佳拧紧力矩配比,分析了双螺母螺栓连接螺纹磨损机理。
Aiming at the common double nut bolt connection in engineering,the relationship between the tightening torque of the upper and lower nuts of the bolt and the combined preload force is established,and its correctness is verified.The percentage of residual preload of the double nut bolt connection under different parameters is obtained through the transverse vibration experiment.The influence of vibration amplitude and tightening torque ratio of upper and lower nuts on loosening of double nut bolt connection under lateral load is analyzed.The optimal tightening torque ratio of upper and lower nuts in double nut bolt connection is given,and the thread wear mechanism of double nut bolt connection is analyzed.
作者
霍仕康
王彤
江文强
Huo Shikang;Wang Tong;Jiang Wenqiang(Department of Mechanical Engineering,North China Electric University,Baoding Hebei 071003,China)
出处
《山西建筑》
2024年第17期1-5,22,共6页
Shanxi Architecture
基金
河北省“三三三人才工程”资助项目(C20231056)。
关键词
双螺母螺栓
横向振动
拧紧力矩配比
连接松动
磨损机理
double nut bolt
transverse vibration
tightening torque ratio
loose connection
wear mechanism
