Commissioning is the last process before the locomotive leaves the factory, just like doing a physical examination of the locomotive, the locomotive failure rate is minimized before leaving the factory. In CRRC Dalian Locomotive and Rolling Stock Co., Ltd., known as the "cradle of locomotives", there is such a young man known as the "locomotive doctor", who not only participated in the debugging of all locomotives from Harmony to Fuxing, but also sent the locomotive safely out of the country. Today, we will get to know this "locomotive doctor" Zhang Ruyi.
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At CRRC Dalian Locomotive and Rolling Stock Co., Ltd., the locomotive tailored for the "Belt and Road" project "China-Laos Railway" has entered the final critical commissioning stage, which will be the first time that the Chinese-made Fuxing EMU has gone abroad. A locomotive, tens of thousands of parts, tens of thousands of meters of wire, the debugger Zhang Ruyi has to do is to find every crux of the locomotive that causes the locomotive to not run normally.
ZHANG Ruyi, locomotive commissioning electrician of CRRC Dalian Company: 363 and 364 are all powered by lighting circuits. Most of the lines are written in my mind, and the more I look for them, the signals will naturally be remembered.
With 16 years of experience in locomotive commissioning, Zhang Ruyi has maintained the factory record of "zero defects" of thousands of locomotives debugged. Others can not solve the problem, but he can not go to the scene only by the description can accurately judge, colleagues all admired him as "locomotive doctor". However, debugging was not his choice at first. When he graduated from the 18-year-old technical school and entered the factory, Zhang Ruyi was only a locomotive electrician in the assembly workshop. At that time, his job only required assembling the locomotive body step by step every day. But soon, the master found that this apprentice was different.
Zhang Ruyi's master Zong Xiaofei: The learning attitude is good, and it is diligent, people learn from Master Ding, take the drawings (ask) how to deal with this problem of the master, and learn well.
The master felt that he was a material that could be made, and recommended Zhang Ruyi to the debugging workshop. To be able to reach a position with higher technical requirements, Zhang Ruyi was secretly happy. But when he really started debugging, he found that there were too many things to learn from the car body, bogie, diesel engine, electrical cabinet, microcomputer, to wiring, measurement, and fault diagnosis.
ZHANG Ruyi, locomotive debugging electrician of CRRC Dalian Company: The master will teach you to look at the drawings, including getting on the car to operate and take the instrument to measure, which is learned from scratch. It should be hard to start, because you won't do anything.
A locomotive has hundreds of schematic diagrams and accessory diagrams, but he is an electrician, to fully master the debugging technology, in addition to diligent study and good questioning, there is no other shortcut. During that time, Zhang Ruyi asked everyone, and the design department became the place where Zhang Ruyi ran the most.
Zhang Lu, deputy director of the Locomotive Development Department of CRRC Dalian Company: He especially likes to ask, this car is still in the design stage, so he took the initiative to ask us what is different from the previous car, what is the innovation.
A commissioning electrician runs to the design department all day long, which is the first time in the factory, and Zhang Ruyi always "does not stop until he reaches the goal".
Zhang Lu, deputy director of the Locomotive Development Department of CRRC Dalian Company: Our commissioning is basically in the early morning every day, so after getting off the car in the early morning, Zhang Ruyi shouted us designers and craftsmen together to continue to study and solve some problems that happened today.
With this diligent and inquisitive energy, Zhang Ruyi slowly entered the door, and more and more models participated in debugging. Arriving at the HXD3B locomotive, he began to pick the girders alone. This is the world's largest single power electric locomotive, when the cooperation of foreign companies is the use of a new locomotive design standards, process flow, the existing experience can not be used, Zhang Ruyi almost from scratch to re-learn.
ZHANG Ruyi, locomotive debugging electrician of CRRC Dalian Company: Diagnose the fault of transformer grounding, see foreign experts take a microcomputer system detection software in a few minutes, and you can eliminate this fault in a few minutes. At that time, our debugging personnel needed to hold a rocking meter, and it took most of the day to check back and forth on the car, and at that time I thought, foreign experts can do it, why can't I.
Zhang Ruyi was determined to learn this software. While pulling the translator to ask foreign experts for advice; while locking himself in the factory building from morning to night debugging and experimenting; in this way, Zhang Ruyi was like a desperate sanlang, after more than two months of painstaking exploration, he gradually figured out the working principle of the software, and became the first person in the factory to use software to diagnose the transformer grounding fault of the owner of the machine; on this basis, he also developed a software detection network voltage network flow waveform, which increased the detection efficiency by dozens of times.
Zhang Ruyi, locomotive commissioning electrician of CRRC Dalian Company: Learning each new model is not only a learning process, but also a process of self-charging, but also a process of self-challenge.
Nowadays, Zhang Ruyi has become an expert talent who has mastered the advanced technology of the world of electric locomotives. The locomotive he personally debugged boarded the "roof of the world"; the commissioned "Fuxing" 160 km per hour power car ensured the normal operation of the Spring Festival, but he himself spent several Spring Festivals on the train in order to ensure the safe operation of the locomotive.
ZHANG Ruyi, locomotive debugging electrician of CRRC Dalian Company: (Locomotive) is like a friend of mine, which is equivalent to you having to understand it, you have to understand its personality, understand its temper, and if you like this work, you will not feel tired of what you do.
Many of these full drawer notebooks have been turned over, and now they have become the "debugging treasure book" of Zhang Ruyi's apprentices, and the problems, ideas, and inspirations at work can be found from these notes. With these records and reflections, the locomotives commissioned by Zhang Ruyi and his colleagues have been exported to 18 countries and regions.
Zhang Ruyi, locomotive debugging electrician of CRRC Dalian Company: If you look at the road on the line, this car is debugged by me, which is particularly proud, is to contribute to the development of the country, and it is also a way for my skills to serve the country.
(CCTV reporter Zhang Qin, Yue Qun, Wang Yan, Xu Shan, Zhang Hao, Li Wenbo, Du Haowei, Lu Ping)
(Edited by Lu Kaili)