Qinghai-Tibet Railway JQ140G Bridge Erecting Machine Fills the Domestic Blank

On June 26, 2006, the Qinghai-Tibet Railway JQ140G bridging machine designed and manufactured by Wuhan Zhongtie Engineering Machinery Factory affiliated to China Railway Engineering Corporation passed the review of scientific and technological achievements organized by the head office, filling the gap of the domestic plateau bridge machine. , reaching the domestic leading level. The jury consists of senior researchers and professors engaged in engineering machinery, railway engineering, rolling stock, structural engineering, etc., and listened carefully to the total development report, design research report and scientific research report of the durable beam equipment of the Qinghai-Tibet Railway. The live video of the JQ140G bridge erecting machine on the bridge construction of the Qinghai-Tibet Railway was consulted. After consultation and full discussion, the experts believe that the JQ140G bridge erecting machine is a high-prototype railway bridge erecting machine developed for the bridge construction of the Qinghai-Tibet Railway. The technical documents submitted for review are complete and complete, the data is informative and credible, the research results are rich in content, and the argument is sufficient. In line with the review requirements, the “Evaluation Opinions on the Development of JQ140G Bridge Erecting Machine for Qinghai-Tibet Railway” was unanimously adopted.

Based on the special working environment of the Qinghai-Tibet Plateau, the JQ140G bridging machine has adopted the technology of plateau cold-air diesel engine, dual-pump air supply and large-capacity air cylinder, aviation hydraulic oil and heating device, mobile equipment lightning protection device, etc. The requirements for frame beam construction in special environment of the region, reasonable structural design, compact structure and reliable performance meet the requirements for the erection of the durable beams of the Qinghai-Tibet Railway. The hoisting mechanism adopts the self-developed automatic rope-removing device to fill the domestic railway bridge-building machine. blank. After disassembly, it can be transported on the Qinghai-Tibet Highway for long distances, adapting to the construction requirements of the Qinghai-Tibet Railway, and has reference significance for the future road transport of bridges. The JQ140G bridge erecting machine has 2116 holes in the Qinghai-Tibet Railway frame beam, including 140 holes in the 23-inch long 23-degree ramp, creating a 12-hole beam of 32-meter beam and 13-hole beam of 24-meter beam. National record.

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