| 摘要 |
Trailer for carrying a welding unit for butt-welding pipe portions, comprising a chassis with brackets for supporting and locking the body of a welding unit for butt-welding pipe portions, the chassis being provided with at least one pair of steered wheels, which can be oriented by means of a drawbar, and at least one pair of driving wheels, which are actuated by an electric motor, which in turn is powered by a current generator which is provided, together with the associated internal-combustion engine, on board the trailer; the chassis also supports a hydraulic pump and a hydraulic unit to which the hydraulic components of the body of the welding unit are to be connected, and an electrical unit for connecting the electrical devices with which the welding unit is provided; the chassis is provided with a fuel tank for the internal-combustion engine and an oil tank for the pump, the hydraulic unit and the hydraulic components of the welding unit connected to the pump; in this manner, the welding unit can be moved in the building yard fully autonomously. |
