Pantograph overhauling auxiliary supporting frame of railway vehicle

The utility model discloses an auxiliary support frame for overhauling a pantograph of a rail vehicle, and relates to the technical field of rail traffic, in particular to the auxiliary support frame for overhauling the pantograph of the rail vehicle, which comprises a fixed component, and a movable component is in threaded connection with the edge of the upper surface of the fixed component. A supporting assembly is fixedly installed in the fixing assembly, a groove is formed in one end of the supporting assembly, and a stress assembly is rotationally connected into the groove. According to the pantograph overhauling auxiliary supporting frame of the railway vehicle, through the arrangement of the supporting assembly and the stress assembly, when the pantograph overhauling auxiliary supporting frame is used, an external power source starts a servo motor, a threaded rod is driven to rotate through a transmission rod, a sleeve rod is made to move upwards, after a stress plate makes contact with a pantograph, a