China Railway Qinghai-Tibet Railway JQ140G bridge erecting machine fills the domestic gap

On June 26, 2006, the Qinghai-Tibet railway JQ140G bridge erecting machine independently designed and manufactured by Wuhan China Railway Engineering Machinery Plant, which belongs to China Railway Engineering Corporation, passed the review of scientific and technological achievements organised by the head office, filling the gaps in the domestic plateau erecting machine. , to achieve the leading domestic level. The evaluation committee consisted of senior researchers and professors engaged in engineering machinery, railway engineering, locomotives and vehicles, and structural engineering. They carefully listened to the general research report, design research report, and scientific and technological review report on the durable beam transport equipment of the Qinghai-Tibet Railway. For the live video of the bridge construction of the JQ140G bridge erection system on the Qinghai-Tibet Railway, consult the relevant information. After consultation and full discussion, the experts believed that the JQ140G bridge erection machine was a prototype railway bridge erector developed for the bridge construction of the Qinghai-Tibet Railway. The technical documents submitted for review were complete and complete, the data were comprehensive and credible, and the results of scientific research were rich in content. Accord with the assessment requirements, unanimously passed the “Opinions on the Development and Evaluation of the Qinghai-Tibet Railway JQ140G Type Bridge Machine”.
The JQ140G bridge erector is designed for the special working environment of the Qinghai-Tibet Plateau. It has adopted plateau cold air diesel engines, double-pump air supply and large-capacity air cylinders, aviation hydraulic oil and heating devices, and mobile equipment lightning protection devices to meet the high altitude cold plateau. The construction requirements for the special environment of the girder, the structural design is reasonable, the structure is compact, and the performance is reliable. It meets the erection requirements for the durable beam of the Qinghai-Tibet Railway. The lifting mechanism adopts the self-developed automatic rope rig to fill the domestic railway bridge erection machine. blank. After being dismantled, it can be transported on the Qinghai-Tibet Highway for a long distance, adapting to the construction requirements of the Qinghai-Tibet Railway, and has implications for future road transport of bridge erecting machines. The JQ140G type bridge erection machine has 2116 holes in the Qingliang-Tibet railway frame beam, in which there are 140 holes in a 20-inch continuous 23-inch long ramp safety frame beam, creating a day frame 32-beam beam 12 holes and a day frame 24 meters beam 13 holes. National record.
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