国内第一条高速电气化试验铁路接触网零件的研制接触网零件是电气化铁路中固定接触网的设施，其作用是将供给电气机车电流的接触线架设在轨道上方．它由支撑件如腕臂、定位管、定位器及各种钩、环等联接零件组成．根据受力条件和使用环境的要求，接触网零件必须具有强度高... China’s first high-speed electrification test development of the railway catenary parts Catenary parts electrified railway fixed contact network facilities, its role is to supply electric locomotive current contact line rack set above the track. It consists of support such as the wrist arm, positioning tube, locator and various hooks, rings and other coupling parts. According to the stress conditions and the requirements of the use of the environment, catenary parts must have high strength ...