I often hear railway friends mention "big machine operation", what does this big machine refer to?Large machine is the abbreviation of large-scale road maintenance machinery, which is a high-tech product integrating mechanical, electrical, hydraulic, gas, optical and other professional technologies, and belongs to major technical equipment for railway maintenance.
With the increase of railway transportation density and the increasing modernization of track structure, higher requirements are put forward for the operation quality of road maintenance machinery. In this situation, the means of railway maintenance and repair are moving towards large-scale mechanization. The large machine can accurately repair the gauge, height and other dimensional errors of thousands of kilometers of railway lines to the millimeter range, which greatly improves the operation efficiency. That's why the coin stands tall on the speeding high-speed train, it's amazing!
So why raise roads?Of course, it is because under the uninterrupted operation of the train and the action of natural conditions, the rails and sleepers of the railway line will inevitably undergo various deformations or damages, resulting in uneven tracks and reduced bearing capacity. The task of road maintenance work is to correct the deformed track state at any time and restore it to its original design position. To put it simply, it's like an iron "ironing" clothes. The development history of railway maintenance machinery can be traced back to the beginning of the 20th century, when railway maintenance and repair mainly relied on manual and simple mechanical equipment, which was inefficient and difficult to ensure quality. "Throw off the pickaxe and realize mechanization" is the fundamental way out for China's railway maintenance.
From pure manpower to small mechanization transformation, to the introduction of large-scale road maintenance machinery, and then to the localization of large-scale road maintenance machinery, the railway road maintenance business has been exploring. With the continuous progress of science and technology, large machines are becoming more intelligent, efficient and environmentally friendly, and the maintenance and repair of railway lines has entered a new era of specialization and mechanization, which has greatly contributed to the construction and development of China's railways.