At the end of June, the Lalin Railway, an important part of the Sichuan-Tibet Railway, a gift project for the centenary of the founding of the Party, will be officially opened to traffic. Recently, as one of the necessary conditions for its opening, 9 catenary special flat cars completed vehicle acceptance and delivery in Lhasa, and began to serve the sichuan-Tibet railway transportation work. These 9 catenary special flat cars are produced by our Shijiazhuang and manufactured by CRRC Qiche Group Shijiazhuang Company. According to reports, this is also the first time that the catenary special flat car has landed on the plateau.
Come and get to know this mysterious black train
According to reports, the Tibet Lalin Railway is an important part of the Sichuan-Tibet Railway, connecting Lhasa and Nyingchi, with a total length of 435.5 kilometers, is the first electrified railway in Tibet, the design speed is 160 kilometers per hour, and is expected to open to traffic at the end of June this year, presenting a gift for the centenary of the founding of the party.
This black mysterious train, of course, does not sell tickets, but it is full of curiosity. The length is about 16 meters, the width is more than 3 meters, the vehicle weighs 23 tons, and can carry a load of 65 tons, it is an advanced NX70 type shared vehicle in China, which is dedicated to catenary maintenance.
What is a catenary? "It is a device that hangs over a high-speed railway or an electrified railway, parallel to the track. It provides power to the EMU at all times and is the power source of the EMU. Whether the catenary is in good condition directly affects the normal operation of the EMU. Wan Tao, deputy director of the technical center of THE CRRC Qiche Group Shijiazhuang Company, said that the Tibet Lalin Railway is an electrified railway, which relies on the catenary network to provide a power source for the EMUs and promote the operation of the EMUs.
"This catenary special flat car is to form a train group together with the catenary operation car and the catenary release car and work together. Catenary special flat car is mainly used to transport steel, automobiles, tractors, boxes of goods and large concrete bridges and other goods, and cooperate with the daily maintenance, maintenance, overhaul, emergency repair and construction of modern electrified railway catenary, which is one of the necessary conditions for the opening of railway trunk lines. Wan Tao said that the "14th Five-Year Plan" period is a key stage in the construction of the national modern railway network, intercity railways, urban (suburban) railways and various railway special lines are bound to usher in vigorous development, and catenary special flat cars as an important part of the catenary operation group, will also usher in new development.
Why is this car black? "This car mainly serves the Sichuan-Tibet Railway, located in the plateau area, black is more resistant to dirt, can be more effective in preventing wind and sand invasion." Because it is located in the plateau area, this car is specially aimed at the characteristics of the plateau area, and the load, vehicle stability and transportation safety are stronger in the design and production, and it is fully suitable for plateau operation. Wan Tao said that the base frame is composed of middle beams, side beams, pillow beams, end beams, beams and longitudinal auxiliary beams. The middle and side beams are H-shaped steel cut into a fish belly shape. Its platform is 15 meters long and 3 meters wide, and the working platform is relatively large, which can effectively cooperate with catenary work vehicles or some other large equipment for operation.
The first catenary flat car was produced in 6 days
"The production time of these 9 catenary special flat cars is tight, the task is heavy, and it is a gift project for the centenary of the founding of the party, so we go all out." On March 26th, we officially started production, only 6 days, and by March 31st we had produced our first car, which usually takes 15 working days to produce a car. Huo Xiaojie, director of the production and manufacturing department of CRRC Qi Che Group Shijiazhuang Company, said.
"This batch of catenary special flat car small batch, short cycle, and the previous company's new car there is a significant difference, to this end, we formulated a differentiated production organization plan, breaking the original station beat assembly line operation mode, from each workshop to draw production backbone and technicians to form a team of more than 70 elite soldiers, for special production." Huo Xiaojie said that two welding teams led by Liu Zhibin, a national labor model and Xing Zhongdong, a technical expert at CRRC, were formed. At the same time, it breaks the original production operation mode, operates in accordance with the fixed table, and adopts the mode of double table of the bottleneck process, compresses the production cycle, controls the identification time of the first piece and the first vehicle, and pulls the overall progress in the sequence system through the first progress bar of the first piece.
"From the beginning of pre-coating to the final delivery, the entire process has nearly a hundred, which process can not go wrong, for this reason we strengthen the production coordination ability, through the point inspection to pull the progress, the site inspection of the day of the production progress and planned difference analysis, process abnormalities summary, focus on tracking bottleneck processes, on-site development of solutions, optimize resource allocation, reduce production abnormalities, pull to achieve the overall progress beyond the plan to complete." Huo Xiaojie said that everyone often has to work overtime, and it is necessary to ensure that a process is completed before leaving work. But no one said bitter, not tired, all worked wholeheartedly, strictly control the quality, strictly control the time, reverse the construction period, wall chart combat, and ensure that the vehicle was completed on time.
The collective power is enormous. Although the team has a wealth of experience, but in the production process will inevitably encounter unexpected situations, at this time everyone sincerely cooperate, work together to find a way, and Xing Zhongdong, as the main force of the team, is even more hands-on. When submerged arc welding was carried out in the fish belly position of the beam and side beam in the vehicle, bubbles always appeared, and Xing Zhongdong and his team quickly solved this problem with superb skills, ensuring the rapid production of the train with quality and quantity.
After everyone's unremitting efforts and sincere cooperation, in just 15 days, by April 9, all 9 vehicles were completed. After completing the certification and completing a series of procedures on the spot, on April 15, carrying the diligence and wisdom of the people of CRRC Qiche Group Shijiazhuang Company, with their blessings and expectations, these 9 catenary special flat cars departed from Shijiazhuang, they went directly to the railway line, pulled by locomotives, and headed for Lhasa.
The catenary special flat car produced in Shijiazhuang landed on the plateau for the first time
The trip to Lhasa for 9 catenary special flat cars was somewhat long, and the road walked for nearly half a month, and finally arrived in Lhasa before May Day, which was also the first time that the catenary special flat car landed on the plateau.
"After arriving in Lhasa, the vehicle first undergoes static inspection and dynamic testing, and the results are very successful, and the performance and quality are highly recognized by customers." Yu Sikai, the bidding supervisor of the marketing department of CRRC Qiche Group Shijiazhuang Company, said that the process is more complicated, and the so-called static inspection is to inspect the middle beam, side beam, pillow beam, end beam, cross beam and longitudinal auxiliary beam and other components of the vehicle in a static state to ensure its safe operation. The dynamic test requires the vehicle to run on the track, to see the running-in of various parts in its operation, and the flexibility and smoothness of the operation of various devices. "Our products are tested and work very well!"
Yu Skye, who was just 26 years old, arrived in Lhasa on May 6 and witnessed the entire static inspection and dynamic test process. This was the first time he had been on the plateau as a young man, and yuskai was much slower than the vehicles who adapted to the plateau climate so quickly. He has severe altitude sickness, headache, asthma, can't eat, can't sleep, but in order to complete the task, he stiffly took the medicine to relieve altitude sickness, and then carried a portable oxygen bottle with him, often while inhaling oxygen, observing the working state of the vehicle at any time, and answering the relevant questions of the other party to ensure the normal operation and use of the vehicle. After completing the acceptance and delivery of the vehicle on May 13, when Yu Skye returned to Shijiazhuang, it was already the early morning of May 14. On this trip to Lhasa, Yu Sikai lost a full 10 pounds, but he felt very relieved to see that the vehicles produced in the factory were running smoothly on the Lalin Railway: "After the Lalin Railway is completed and opened to traffic, it will further improve and optimize the layout and planning of the Railway Network in Tibet, so that Tibet's transportation will step onto a new historical stage." We are also extremely proud and proud to serve the Sichuan-Tibet Railway! "In the future, they will also carry out technical services for the vehicles for a period of one year to ensure that the vehicles make their due contribution on the Larin Railway.
In the next step, CRRC Qiche Group Shijiazhuang Company said that they will continue to produce catenary special flat cars for railway trunk lines in view of the characteristics of the product's set load, high load capacity and strong interoperability of parts, and contribute to the opening and construction of the national railway network.
Text/Yanzhao Evening News Rong media reporter Feng Yuejing
Editor Quiet Editor Kaka
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