In the middle of March, the staff of China Railway Lanzhou Bureau Group Co., Ltd. repaired and maintained the road maintenance machinery in the workshop yard of Lanzhou North Line of Lanzhou West Works Section.
China News Network, Lanzhou, March 17 (Wang Guanghui) During the "centralized repair" construction of the railway after the end of the Spring Festival and Summer Games every year, small road maintenance machinery becomes "iron lumps" due to frequent use, and will be "reborn" after being sent to the "health care workshop" for maintenance.
Li Chengguo, from the Materials and Equipment Section of Lanzhou West Works Section of China Railway Lanzhou Bureau Group Co., Ltd., said that with the popularization of mechanization, small road maintenance machinery has become an essential part of the daily maintenance of railway lines. "Our total number of small machinery is very large, including 686 sets of tamping machines, screw machines, rail sawing machines, generators, etc."
In the middle of March, dozens of flexible shaft tamping machines and presses that have just been sprayed with paint were neatly placed in the yard of Lanzhou North Line Workshop of Lanzhou West Works Section. In the warehouse on the other side, three masters concentrate on replacing gaskets and steel balls for several presses, pressing and testing the tightness, and sometimes meeting to discuss maintenance skills.

Lanzhou West Works Section of China Railway Lanzhou Bureau Group Co., Ltd. has vigorously promoted the renovation and recycling of old and waste materials, cost saving and consumption reduction, so that the old and used iron will be "reborn".
At the maintenance site, there are generators, single-head and double-head bolt machines, drilling machines, etc. The staff always have "unique skills" to make the "iron knot" with "difficult and complicated diseases" become "new machinery". "These are basically machines that have been accumulated in various workshops for a long time and are ready to be scrapped. More than 150 compressors and more than 10 flexible shafts have been repaired in the past two days. It costs at least 2500 yuan to buy a new compressor, which will save money." said Yang Yusheng, who has 30 years of experience in mechanical maintenance.
"The annual investment in maintenance and replacement is very large." Li Chengguo said that since 2019, the investment in the replacement and maintenance of small machinery has ranged from less than one million yuan to more than two million yuan.
At present, the small road maintenance machinery is of a wide variety, and the maintenance force of each workshop alone can not meet all the current technical requirements. The cost of returning to the factory for repair and inviting manufacturers to repair is high. In view of this reality, Lanzhou West Railway Depot has transferred the technical backbone of maintenance from the whole section to form a small machinery maintenance team. Through mutual learning, discussion and "technology sharing and resource sharing", it breaks through the technical bottleneck, and focuses on the maintenance of all damaged and scrapped small road maintenance machinery in the whole section, so as to realize the supply of accessories according to demand, the allocation of machinery according to labor, and the reduction of waste and fatigue damage.
"Through this way of recycling, the cost of small machinery maintenance this year will be saved by another 200000 yuan on the basis of last year." Li Chengguo said that since 2019, on the basis of not affecting production, this section has achieved a savings of 1.48 million yuan through four consecutive years of recycling.
In recent years, the Lanzhou West Works Section of China Railway Lanzhou Bureau Group Co., Ltd. has vigorously promoted the repair and recycling of the old and the waste, saving costs and reducing consumption, and adhered to the idea of "repair without discarding, use without replacement" and "supply according to demand, self-reliance and self-sufficiency". According to the characteristics of on-site production and the actual situation of equipment, it has realized the sharing of technology and resources, and turned the abandoned "iron knot" into a useful "gold knot". (End)