The invention discloses a lightweight grounding backflow device suitable for a rail transit grounding third rail. A backflow roller is installed at the bottom of a locomotive through a spring dampingdevice and a rotating arm, and when the backflow roller rolls, traction current flows through a roller spindle and a grounding carbon brush firstly and then is conducted to the grounding third rail through the outer layer of the backflow roller to return to the negative electrode of a traction substation to achieve working grounding. The current situation of the rail circulation of a motor train unit can be effectively improved, the electrochemical corrosion of stray current to steel rails and the interference to other electrical equipment are inhibited, the lightweight design conforms to thetechnical standard of return voltage, more materials are not consumed, and the damping measures can ensure the reliability of return current.
本发明公开了一种适用于轨道交通接地第三轨的轻量化接地回流装置,回流滚筒通过弹簧减震装置和旋转臂安装在机车的底部,当回流滚筒滚动时,牵引电流先是流经滚筒主轴、接地碳刷,再经回流滚筒外层传导至接地第三轨回到牵引变电所的负极,实现工作接地;本发明能有效改善动车组车轨环流的现状、抑制杂散电流对钢轨的电化腐蚀和对其他电气设备的干扰,轻量化设计符合回流电压的技术标准、同时不耗费更多材料,减震措施能保证回流的可靠性。
Lightweight grounding backflow device suitable for rail transit grounding third rail
一种适用于轨道交通接地第三轨的轻量化接地回流装置
2020-06-09
Patent
Electronic Resource
Chinese
IPC: | B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
Grounding device, bogie and rail transit locomotive vehicle
European Patent Office | 2020
|European Patent Office | 2020
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