The 1 800 t beam transporting truck is used to transport the 50 m/1800t precast box girder of the viaduct of a project,and meanwhile,it is used to erect beams with the bridge erecting machine.In this paper,the author uses four bicycles to transport the beam synchronously across the left and right double-width box beams,and the beam transporting truck combines the four bicycles into a whole through data communication lines,steel trusses and hydraulic close system parallel technology,which solves problems such as difficult synchronization and high inaccuracy of multi-vehicle groups.A balanced automatic lifting system for wheelsets is put forward,which solves the problem of torsion of transporting beams in ultra-high section of large cross slope.A path planning method and an automatic driving operation control method of beam transporting truck are proposed,which solve the deviation of beam transporting truck during driving.Its research results have been put into the first phase project of Ningbo section of Hangzhou-Ningbo double-track railway.By the end of August,2022,more than 330 pieces of box girders had been transported,and the box girders had been carried on the back for three times.
关键词
运梁车/同步控制/大横坡超高段/自动驾驶/设计
Key words
beam transporting truck/synchronous control/ultra-high section of large cross slope/automatic drive/design
维普
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