Pneumatic Transformation of the Main Lock of Sliding Plug Door of CRH380B EMU
This article analyzes the control logic and the action process of unlocking and locking of the sliding plug door of CRH380 B EMU,and based on the structure and the working principle of the sliding plug door,it indicates that the electrical main lock structure presents a high fault rate in actual operation and maintenance,and expounds the necessity and the effectiveness of the pneumatic transformation of the main lock.It describes the main process and the content of the implementing scheme of pneumatic transformation and summarizes the possible derived faults caused by the installation of components,the connection of pipes and the layout of electric circuits in course of transformation according to the experience so as to provide a guidance for better controlling the quality and guaranteeing the safety.
CRH380 B EMUsliding plug doorfaultmain lockpneumatic transformation