With the opening of China's high-speed railway passenger dedicated line, the operation safety of high-speed railway has become the first priority of railway operation. Recently, catenary pantograph and catenary accidents have occurred for many times due to the anti loosening problem of passenger dedicated line, which has brought many hidden dangers to the operation safety of high-speed railway. Combined with the current situation of fasteners used in catenary parts of passenger dedicated line, it is urgent to carry out in-depth research on anti loosening of catenary fasteners.
At present, the anti loosening structures are diverse, and the effects of many types of anti loosening measures are not systematically evaluated or targeted. The anti loosening requirements are only broadly specified through standards and project technical specifications. Therefore, it is necessary to analyze, compare and verify many current anti loosening schemes of fasteners, and put forward analysis and suggestions on anti loosening measures of catenary fasteners, so as to determine reasonable A safe and reliable anti loosening scheme is provided to meet the requirements of high tension, high running speed and low potential safety hazards of catenary clues of high-speed electrified railway.
The new generation of catenary self tightening nuts developed by Zhejiang zijinwang Machinery Co., Ltd. by using the self tightening principle can effectively solve the requirements of high tension, high running speed and low potential safety hazards of catenary clues of high-speed electrified railway. Without secondary preloading maintenance, it can be installed once and used for life.
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