3、选取电机、减速器、制动器等。再根据参数利用solidwords三维绘图软件绘制出运行机构设计总图,零件图。关键词:道路设施;桥梁;运行机构VAbstractToday's social economy is more developed, more advanced technology, people is not just satisfied with the problem of food and clothing, they began to enjoy life, life has different req
4、uirements, and even travel transport months with each passing day. The requirements of the road transport facilities increased accordingly. Bridge is required of it as a hub linking the two sides or ordinary people transport facilities with changing times and al
5、so become more and more.Chinanowhasabout500,00bridgesinmanykinds,andthenmorethan10,000seatsbridgehadbeenstartofconstructioninoneyear.Previously,Chinajusta“Multi-bridgenational”butnowChinajustbecomethe“powerofbridgecountry”.Bridgesintheprocessoflong-termusemaypro