接触网螺栓紧固力矩应用浅析

A Brief Analysis of Application of Overhead Contact System Bolt Tightening Torque

针对接触网的可靠性和安全性,从零部件螺栓连接角度进行分析探讨,对接触网螺栓连接受力情况分类说明,分析螺栓连接拧紧过程,阐述螺栓紧固力矩值确定的原理,介绍螺栓的标识,分析摩擦力与压紧力对压紧的影响。最后从施工安装和运营维护方面,制定具有针对性的工艺标准和检测方法。

The analysis and discussion are being started from angles for connecting parts i.e. the bolts with regard to reliability and safety of overhead contact system, and the connecting and tightening process of bolt is being analyzed on basis of classification of force distribution on overhead contact system bolt for illustration of principles defined by bolt tightening torque, introduction of labels of bolts, analyzing the impact to the tightening force imposed by friction force and pressing force. And finally, the correlative processing technology and inspection method are made in terms of construction, installation, operation and maintenance.