Chassis structure of combined operation car

The utility model relates to a highway and railway construction construction vehicle chassis technical field specifically disclose a chassis structure of combined operation car, including two traveling system chassis frame structures, highway traveling system, railway traveling system, two traveling system chassis frame structures include well roof beam and the body frame structure, railway traveling system includes driving part and secondary part, driving part is two independent leg structure and two drive wheels, and two landing legs are through drive landing leg hydro -cylinder and the body frame structural connection, the secondary part includes driven shaft, rocking arm subassembly, reaches two follows the driving wheel, highway traveling system includes front propeller shaft and rear drive shaft, front driving bridge and four bull wheels. The utility model discloses the advantage is to adopt " well " style of calligraphy original creation frame for two kinds of running gear of public iron can compatible