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DF900D型导梁式定点起吊架桥机是针对中国高速铁路建设的需要,自主研制开发的具有自主知识产权的大型特种起重设备。整机结构形式新颖,吊运吨位大。其中吊梁天车的调整落梁过程成功地应用了电液比例控制技术,由微电系统来控制、协调和实现落梁的功能,其机械化和自动化程度高,落梁对位精确,是机-电-液-控技术在架桥机上的首次应用。重点介绍电液比例技术在天车调整落梁上的设计思路。
DF900D guide beam fixed-point pontoon bridge machine is designed for the needs of China’s high-speed railway construction, independent research and development with independent intellectual property rights of large special lifting equipment. The whole structure of the new form, large tonnage lifting. In which crane girder crane adjustment beaming process successfully applied the electro-hydraulic proportional control technology, controlled by the micro-electrical system to coordinate and achieve the function of falling off the beam, the high degree of mechanization and automation, accurate alignment of the beam, is the machine The First Application of Electrohydraulic Control Technology on Erecting Machine. Focus on the electro-hydraulic proportional technology in the crane adjustment on the design ideas.