Trolley device for transporting large-tonnage steel pipes in tunnel

The utility model provides a trolley device for transporting large-tonnage steel pipes in a tunnel. The trolley device comprises a transporting track, a trolley frame device, a walking device, a drive device, a hydraulic station device and a trolley body loading device. The walking device composed by four steel wheels is connected with a trolley frame through a shaft, a bearing, a bearing base and other parts on the shaft. The walking device is connected with a hydraulic motor drive device in a matched mode through a spline. The hydraulic motor drive device is connected with the hydraulic station device so as to drive a hydraulic motor, then the hydraulic motor drives the wheels, and finally stable running of the trolley device loaded with the large-tonnage steel pipes on the fixed track is achieved. By means of the trolley device for transporting the large-tonnage steel pipes in the tunnel, safe and reliable transporting of the large-tonnage steel pipes in narrow and small tunnels can be achieved in the engi